IE101H
Installation, Operation
& Maintenance Manual
Liquid Transfer-Vapor Recovery Compressors
Warning: (1) Periodic inspection and maintenance of Corken products is essential. (2) Inspection, maintenance and installation of Corken
products must be made only by experienced, trained and qualified personnel. (3) Maintenance, use and installation of Corken products
must comply with Corken instructions, applicable laws and safety standards (such as NFPA Pamphlet 58 for LP-Gas and ANSI K61.1-1972
for Anhydrous Ammonia). (4) Transfer of toxic, dangerous, flammable or explosive substances using Corken products is at user’s risk and
equipment should be operated only by qualified personnel according to applicable laws and safety standards.
Warning
Install, use and maintain this equipment according to Corken, Inc. instructions and all applicable federal, state, local
laws and codes, and NFPA Pamphlet 58 for LP-Gas or ANSI K61.1-1989 for Anhydrous Ammonia. Periodic inspection
and maintenance is essential.
Corken One Year Limited Warranty
Corken, ­Inc. warrants that its products will be free from defects in material and workmanship for a period of 12
months following date of purchase from Corken. Corken products which fail within the warranty period due to defects
in material or workmanship will be repaired or replaced at Corken’s option, when returned freight prepaid to Corken,
Inc., 3805 N.W. 36th Street, Oklahoma City, Oklahoma 73112.
Parts subject to wear or abuse, such as mechanical seals, blades, piston rings, valves, and packing, and other
parts showing signs of abuse are not covered by this limited warranty. Also, equipment, parts and accessories not
manufactured by Corken but furnished with Corken products are not covered by this limited warranty and purchaser
must look to the original manufacturer’s warranty, if any. This limited warranty is void if the Corken product has been
altered or repaired without the consent of Corken.
All implied warranties, including any implied wa­rranty of merchantability or fitness
for a particular purpose, are expressly negated to the extent permitted by law and
shall in no event extend beyond the expressed warranty period.
Corken disclaims any liability for consequential damages due to breach of any written or implied warranty on Corken
products. Transfer of toxic, dangerous, flammable or explosive substances using Corken products is at the user’s
risk. Such substances should be handled by experienced, trained personnel in compliance with governmental and
industrial safety standards.
Contacting The Factory
For your convenience, the model number and serial number are given on the compressor nameplate. Space is
provided below for you to keep a written record of this information.
Always include the model number and serial number when ordering parts.
Model No.
Serial No.
Date Purchased
Date Installed
Purchased From
Installed By
Important Note to Customers!
CORKEN, INC. does not recommend ordering parts from general descriptions in this manual. To minimize
the possibility of receiving incorrect parts for your machine, Corken strongly recommends you order parts
according to part numbers in the Corken Service Manual and/or Installation, Operation, & Maintenance
(IOM) Manual. If you do not have the appropriate service manual pages, call or write Corken with model
number and serial number from the nameplate on your compressor.
2
Table of Contents
Chapter 1—introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 4
1.1 Liquid Transfer by Vapor Differential Pressure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2Residual Vapor Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3 Compressor Construction Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Chapter 2—Installing your corken compressor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 8
2.1 Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.2 Foundation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3 Piping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.4 Liquid Traps. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.5Driver Installation / Flywheels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.6 Crankcase Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.7Relief Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.8 Truck Mounted Compressors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.9 Shutdown/Alarm Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Chapter 3—Starting up your corken compressor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 14
3.1 Inspection After Extended Storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.2 Flywheel and V-belt Alignment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.3 Crankcase Oil Pressure Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.4 Startup Checklist. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Chapter 4—Routine Maintenance Chart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PAGE 16
Chapter 5—Routine Service and Repair Procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PAGE 17
5.1 Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.2 Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.3 Piston Rings and Piston Ring Expanders. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.4 Pistons. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.5 Piston Rod Packing Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.6 Cylinder and Packing Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.7Bearing Replacement for Crankcase and Connecting Rod. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5.7.1 Wrist Pin Bushing Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5.7.2Replacing Connecting Rod Bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5.7.3Replacing Roller Bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5.8 Oil Pump Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5.9 Servicing the Four-Way Valve. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Chapter 6—Extended Storage Procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 25
Appendices
A.Repair Kits and Gasket Sets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26–27
B. Model Number and Mounting Identification Code. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28–29
C. Operating and Material Specifications, Bolt Torque Values, Clearance and Dimensions. . . . . . . . . . . . . . 30–35
D. Compressor Selection
Mounting Selections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Butane. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Propane. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Ammonia. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
E. Outline Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40–50
F. Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
G. Model 91 and F91 Parts Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52–59
H. Model 291 and F291 Parts Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60–67
I. Model 490, 491, and F491 Parts Details. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68–75
J. Model 691 and F691 Parts Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76–83
K. Model D891 Parts Details. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84–93
3
Chapter 1—Introduction
Threaded and ANSI flanges:
Compressors are available in either threaded NPT,
ANSI, or DIN flanged connections.
High-efficiency valves:
Corken valves offer quiet operation and high
durability in oil-free gas applications. Specially
designed suction valves which tolerate small
amounts of condensate are used in liquid transfervapor recovery compressors.
O-ring head gaskets:
Easy to install O-ring head gaskets providing highly
reliable seals.
Ductile iron construction:
All cylinders and heads are ductile iron for maximum
thermal shock endurance.
Self-lubricating PTFE piston rings:
Corken provides a variety of state-of-the-art piston
ring designs to provide the most cost-effective
operation of compressors for non-lube service. The
step-cut design provides higher efficiencies during
the entire life of the piston ring.
Positively locked pistons:
Simple piston design allows end clearance to be
precisely set to provide maximum efficiency and
long life.
Self-lubricating piston rod seals:
Seals constructed of PTFE incorporating special
fillers to ensure no oil carry over and maximize
leakage control. Spring loaded seal design self
adjusts to compensate for normal wear.
Nitride-coated piston rods:
Impregnated nitride coating provides superior
corrosion and wear resistance.
Nameplate:
Serves as packing adjusting screw cover (see
figure 1.1A).
Cast iron crossheads:
Durable cast iron crossheads provide superior
resistance to corrosion and galling.
Pressure-lubricated crankcase with filter:
Self-reversing oil pump ensures proper lubrication
regardless of directional rotation to main and
connecting rod bearings. Standard 10-micron filter
ensures long-lasting bearing life (not available on
Model 91).
Construction Details—Model F291 Compressor
4
this by withdrawing vapors from the storage tank,
compressing them and then discharging into the tank
to be unloaded. This procedure slightly decreases the
storage tank pressure and increases the pressure in
the other tank, thereby causing the liquid to flow.
The process of compressing the gas also increases the
temperature, which aids in increasing the pressure in the
tank being unloaded.
Figure 1.1A: Typical Nameplate
(Also Serves as the Packing Adjusting Screw Cover)
1.2 Residual Vapor Recovery
1.1 Liquid Transfer By Vapor
Differential Pressure
The principle of residual vapor recovery is just the
opposite of liquid transfer. After the liquid has been
transferred, the four-way control valve (or alternate
valve manifolding) is reversed so that the vapors are
drawn from the tank just unloaded and discharged into
the receiving tank. Always discharge the recovered
vapors into the liquid section of the receiving tank.
This will allow the hot, compressed vapors to condense,
preventing an undesirable increase in tank pressure (see
figure 1.2A).
Corken LPG/NH 3 compressors are designed to
transfer liquefied gases such as butane/propane
mixtures (liquefied petroleum gas or LPG) and
Anhydrous Ammonia (NH 3) from one tank to another.
Liquefied gases such as LPG & NH 3 are stored in
closed containers where both the liquid and vapor
phases are present.
Residual vapor recovery is an essential part of the value
of a compressor. There is an economical limit to the
amount of vapors that should be recovered, however.
There is a piping connection between the vapor
sections of the storage tank and the tank being
unloaded, and there is a similar connection between the
liquid sections of the two tanks. If the connections are
opened, the liquid will seek its own level and then flow
will stop; however, by creating a pressure in the tank
being unloaded which is high enough to overcome pipe
friction and any static elevation difference between the
tanks, all the liquid will be forced into the storage tank
(see figure 1.1B). The gas compressor accomplishes
When the cost of operation equals the price of the product
being recovered, the operation should be stopped.
For most cases in LP Gas and Anhydrous Ammonia
services, this point is reached in the summer when the
compressor inlet pressure is 40 to 50 psig (3.8 to 4.5
bars). A good rule of thumb is not to operate beyond
Vapor Line
Pressure difference between
tanks causes liquid to flow out of
the tank car into the storage tank
Vapor Line
Compressor increases
pressure in tank car by
adding vapor
Compressor reduces
pressure in storage tank
by removing vapor
Four Way Valve Position 1
Liquid Line
Figure 1.1B: Liquid transfer by vapor differential pressure
5
Vapor Line
Liquid line is valved closed
during vapor recovery.
Vapor Line
Removing vapor from
tank causes liquid heel
to boil into vapor
Vapor is
bubbled
through liquid to
help cool and
recondense it
Liquid Heel
Four Way Valve Position 2
Figure 1.2A: Residual Vapor Recovery
the point at which the inlet pressure is one-fourth the
discharge pressure. Some liquids are so expensive that
further recovery may be profitable, but care should be
taken that the ratio of absolute discharge pressure to
absolute inlet pressure never exceeds 7 to 1. Further
excavation of very high value products would require a
Corken two-stage gas compressor.
Invariably, there is some liquid remaining in the tank
after the liquid transfer operation. This liquid “heel”
must be vaporized before it can be recovered, so do not
expect the pressure to drop immediately. Actually, more
vapor will be recovered during the first few minutes
while this liquid is being vaporized than that during the
same period of time later in the operation. Remember
that more than half of the economically recoverable
product is usually recovered during the first hour of
operation on properly sized equipment.
1.3 Compressor
Construction Features
Figure 1.3A: 107-Style Compressor Mounting
The Corken liquid transfer-vapor recovery compressor
is a vertical single-stage, single-acting reciprocating
compressor designed to handle flammable gases like LPG
and toxic gases such as ammonia. Corken compressors
can handle these potentially dangerous gases because
the LPG/NH3 is confined in the compression chamber
and isolated from the crankcase and the atmosphere.
A typical liquid transfer-vapor recovery compressor
package is shown in figure 1.3A.
Corken gas compressors are mounted on oil lubricated
crankcases that remain at atmospheric pressure.
Crankshafts are supported by heavy-duty roller bearings
and the connecting rods ride the crankshaft on journal
bearings. With the exception of the small size model 91
compressor, all compressor crankcases are lubricated by
an automotive type oil pressure system. An automatically
reversible gear type oil pump circulates oil through
6
passages in the crankshaft and connection rod to
lubricate the journal bearings and wrist pins (see figure
1.3B). Sturdy iron crossheads transmit reciprocating
motion to the piston.
Corken’s automatically reversible oil pump design
allows the machine to function smoothly in either
direction of rotation.
Corken compressors use iron pistons that are locked
to the piston rod. The standard piston ring material is a
glass-filled PTFE polymer specially formulated for nonlubricated services. Piston ring expanders are placed
behind the rings to ensure that the piston rings seal
tightly against the cylinder wall.
Piston rod packing is used to seal the gas in the
compression chamber and prevent crankcase oil from
entering the compressor cylinder. The packing consists
of several PTFE V-rings sandwiched between a male and
female packing ring and held in place by a spring (see
figure 1.3C).
Figure 1.3C: Compressor Sealing System
The typical Corken compressor valve consists of a seat,
bumper, one or more spring/s and one or more valve/s
discs or plates as shown in figure 1.3D. Special heattreated alloys are utilized to prolong life of the valve in
punishing non-lubricated services. The valve opens
whenever the pressure on the seat side exceeds the
pressure on the spring side.
Suction Valve
Spec 3
Gasket
Adjusting
screw
Relief ball spring
Relief ball
Suction valve
seat
Valve plate
Discharge Valve
All Specs
Gasket
Bolt
Discharge valve
bumper
Valve spring
Spacers
Washer
Washer
Valve spring
Spacers
Suction valve
post
Valve plate
Suction valve
bumper
Discharge valve
seat
Valve gasket
Valve gasket
Figure 1.3D: Suction and Discharge Valves
Figure 1.3B: Pressure Lubrication System
(Not Available on Model 91)
7
Chapter 2—Installing Your Corken Compressor
2.1 Location
HEx Nut
2” Min.
all sides
NOTE: Compressor must be installed in a well
ventilated area.
Concrete foundation
with reinforcements
should be used on all
models
8” Min.
Corken compressors handling toxic or flammable gases such
as LPG/NH3 should be located outdoors. A minimum of 18
inches (45 cm) clearance between the compressor and the
nearest wall is advised to make it accessible from all sides
and to provide unrestricted air flow for adequate cooling.
1/2” “J” Bolts
12” Long
Note:
Locate “J” Bolts Per
compressor outline
dimension drawings.
Figure 2.2A: Recommended Foundation Details
for Corken Compressors 91 - 691
Noise. Corken vertical compressors sizes model 91
through 891 should not exceed an 85 DBA noise level
when properly installed.
smooth operation of the compressor. Improper piping
installation will result in undesirable transmission of
compressor vibration to the piping.
2.2 Foundation
DO NOT SUPPORT PIPING WITH THE COMPRESSOR.
Unsupported piping is the most frequent cause of
vibration of the pipe. The best method to minimize
transmission of vibration from the compressor to the
piping is to use flexible connectors (see figure 2.3A).
Proper foundations are essential for a smooth running
compression system. Corken recommends the compressor
be attached to a concrete slab at least 8 in. thick with a 2
in. skirt around the circumference of the baseplate. The
baseplate should be securely anchored into the foundation
by 1/2 in. diameter “J” bolts 12 in. long. Four bolts should
be used for models 91, 291, and 491. Six bolts should
be used for model 691. The total mass of the foundation
should be approximately twice the weight of the compressor
system (compressor, baseplate, motor, etc.).
Pipe must be adequately sized to prevent excessive pressure
drop between the suction source and the compressor as
well as between the compressor and the final discharge
point. In most cases, piping should be at least the same
diameter as the suction nozzle on the compressor. Typically,
LPG/NH3 liquid transfer systems should be designed to
limit pressure drops to 20 psi (1.3 bar). Appendix D shows
recommended pipe sizes for each compressor for typical
LPG/NH3 installations.
After leveling and bolting down baseplate, the volume
beneath the channel iron baseplate must be grouted
to prevent flexing of the top portion
of the baseplate and the “J” bolt that
extends beyond the foundation. The
Flexible connections
grout also improves the dampening
capabilities of the foundation by
creating a solid interface between the
compressor and foundation.
See ED410 (Compressor Foundation
Design).
Compressor
Baseplate
Grout Beneath
base
Corken compressors are designed and manufactured for
outdoor duty. For applications where the compressor will be
subjected to extreme conditions for extended periods such
as corrosive environments, arctic conditions, etc., consult
Corken. Check local safety regulations and building codes
to assure installation will meet local safety standards.
On some of the longer baseplates, such
as with the 691–107, a 3 in. hole can be
cut in the baseplate for filling the middle
section of the baseplate with grout.
Washer
Pipe support
Flexible connections
Pipe support
Baseplate should be
a maximum of 4″ high
Grouted
baseplate
Ground level
Concrete
foundation
2.3 Piping
Proper piping design and installation
is as important as the foundation is to
Figure 2.3A: On –107 mountings, the flexible
connectors should be located near the four way valve.
8
Care must be taken if a restrictive device such as a valve,
pressure regulator, or back-check valve is to be installed
in the compressor’s suction line. The suction line volume
between the restrictive device and the compressor
suction nozzle must be at least ten times the swept
cylinder volume.
A tank car unloading riser should have two liquid hoses
connected to the car liquid valves. If only one liquid hose
is used, the transfer rate will be slower and there is a good
possibility that the car’s excess flow valve may close.
Since the heat of compression plays an important part in
rapid liquid transfer, the vapor line from the compressor to
the tank car or other unloading container should be buried
or insulated to prevent the loss of heat and the compressor
should be located as near as possible to the tank being
emptied. In extremely cold climates, if the line from the
storage tank to the compressor is over 15 feet (4.6 meters)
long, it should be insulated to lessen the possibility of
vapors condensing as they flow to the compressor. The
vapor recovery discharge line is better not insulated.
Placing the compressor as close as possible to the tank
being unloaded will minimize heat loss from the discharge
line for the best liquid transfer rate.
107 style compressors are usually connected using a fivevalve (figure 2.3B) or three-valve manifold (figure 2.3C).
The five-valve manifold allows the storage tank to be
both loaded and unloaded. The three-valve manifold only
allows the storage tank to be loaded. Adequate sizing of
the liquid and vapor lines is essential to limit the pressure
drop in the system to a reasonable level (20 psi or less).
The line size helps determine the plant capacity almost
as much as the size of the compressor, and liquid line
sizes are a bigger factor than vapor lines. If the pressure
gauges on the head indicate more than a 15 to 20 psi
(2.07 to 2.40 bars) differential between the inlet and outlet
pressures, the line sizes are too small or there is some
fitting or excess flow valve creating too much restriction.
The less restriction in the piping, the better the flow.
Appendix D shows recommended pipe sizes for typical
LPG/NH3 compressor installation.
Unloading stationary tanks with a compressor is quite
practical. Delivery trucks and other large containers can be
filled rapidly if the vapor system of the tank to be filled will
permit fast vapor withdrawal, and if the liquid piping system
is large enough. Many older trucks (and some new ones) are
not originally equipped with vapor excess flow valves large
Service to Perform
A
B
C
D
E
1. Unload Tank Car into
Storage Tank
Position
One
Open
Open
Close
Close
Close
2. Recover Vapors from Tank
Car into Storage Tank
Position
Two
Close
Open
Open
Close
Close
3. Unload Transport or Truck
into Storage Tank
Position
One
Open
Close
Close
Close
Open
4. Recover Vapors from
Transport or Truck into
Storage Tank
Position
Two
Close
Close
Open
Close
Open
5. Load Truck or Field Tank
from Storage Tank
Position
Two
Open
Close
Close
Close
Open
6. Load Truck or Field Tank
from Tank Car
Position
One
Close
Open
Close
Open
Close
7. Equalize Between Tank Car
and Storage Tank without
using Vapor Pump
—
Open
Open
Close
Open
Open
8. Equalize Between Truck or
Field Tank and Storage Tank
without using Vapor Pump
—
Open
Close
Close
Open
Close
Figure 2.3B: Five-Valve Manifold Piping System
9
Valve Position
4-way
2.4 Liquid Traps
Compressors are designed to pressurize gas, not to
pump liquids. The entry of even a small amount of
liquid into the compressor will result in serious damage
to the compressor.
On liquefied gas applications, a liquid trap must be used
to prevent the entry of liquid into the compressor.
Service to Perform
1. Unload Tank Car into
Storage Tank
2. Recover Vapors from
Tank Car into Storage
Tank
4-way
Position
One
Position
Two
Valve Position
A
B
Corken offers three types of liquid traps for removal of
entrained liquids. The simplest is a mechanical float trap
(see figure 2.4A). As the liquid enters the trap the gas
velocity is greatly reduced, which allows the entrained
liquid to drop out. If the liquid level rises above the
inlet, the float will plug the compressor suction. The
compressor creates a vacuum in the inlet piping and
continues to operate until the operator manually shuts it
down. The trap must be drained and the vacuum-breaker
valve opened before restarting the compressor, to allow
the float to drop back. This type of trap is only appropriate
for use where the operator keeps the compressor under
fairly close observation. This trap is provided with the
109 and 107 compressor packages (see Appendix D for
details on standard Corken compressor packages).
C
Open
Open
Close
Close
Open
Open
Figure 2.3C: Three-Valve Manifold Piping System
enough to do a good job and these should be replaced
by a suitable size valve. The liquid discharge should be
connected to the tank truck pump inlet line rather than the
often oversized filler valve connection in the tank head.
When the compressor will not be under more-or-less
constant observation an automatic trap is recommended
It is of extreme importance to prevent the entry of
liquid into the compressor. The inlet of the compressor
should be protected from liquid entry by a liquid trap
(see section 2.4). It is of equal importance to protect
the discharge of the compressor from liquid. This may
be done by installing a check valve on the discharge
and designing the piping so liquid cannot gravitydrain back into the compressor. Make sure to install
a check valve on vapor lines discharging to the liquid
space of the tank.
All piping must be in accordance with the laws and codes
governing the service. In the United States, the following
codes apply:
For LP Gas – The National Fire Protection Association
Pamphlet No. 58, Standard for the Storage and Handling
of Liquefied Petroleum Gases.
For Ammonia – The American National Standards
Institute, Inc., K61.1-1989, Storage and Handling of
Anhydrous Ammonia.
Copies of these are available from NFPA, 60 Baterymarch
Street, Boston, Mass, 02110 and ANSI, 1430 Broadway,
New York, N.Y., 10018. Install, use and maintain this
equipment according to Corken instructions and all
applicable federal, state, and local laws and previously
mentioned codes.
Figure 2.4A: Mechanical Trap
10
If your compressor is equipped with a liquid trap
of other than Corken manufacture, make sure it is
of adequate size to thoroughly remove any liquid
entrained in the suction stream.
(see figure 2.4B). The automatic trap replaces the float with
electrical float switches. If the liquid level should rise too
high, the level switch will open and disconnect the power
to the motor starter, stopping the compressor. This design
ensures the machine will be protected even when it is not
under close observation and is standard in the 109A and
107A mounting configurations.
Corken’s most sophisticated trap provides the most
thorough liquid separation (see figure 2.4C). This trap is
larger and is ASME code stamped. It contains two level
switches, one for alarm and one for shutdown. In some
cases the alarm switch is used to activate a dump valve
(not included with trap) or sound an alarm for the trap
to be manually drained by the operator. This trap also
contains a mist pad. A mist pad is a mesh of interwoven
wire to disentrain fine liquid mists. The ASME code trap is
standard in the 109B and 107B mounting configurations.
Typical Float Switch Wiring Diagram
(1) = Common, black
(2) = Normally closed, blue
(3) = Normally open, red
A typical wiring diagram for the liquid level switch is
shown in figure 2.4D.
Figure 2.4D: Typical Float Switch Wiring Diagram
NOTE: The level switch MUST be removed from
the trap before grounding any welding devices to
the trap or associated piping! Failure to do so will
damage the switch contacts.
Figure 2.4B: Automatic Liquid Trap
Figure 2.4C: ASME Automatic Liquid Trap
11
2.5 Driver Installation / Flywheels
Acceptable Crankcase Oil Products for Corken
Compressors
Corken vertical compressors may be driven by either
electric motors or combustion engines (gasoline, diesel,
natural gas, etc.). Corken compressors are usually
V-belt driven but they are also suitable for direct drive
applications as well. Direct drive applications require an
extended crankshaft to allow the attachment of a rigid
metal coupling.
Constant Weight - Non-Detergent - R&O Inhibited
Oil product
Exxon®
Teresstic
Mobil®
RARUS 427 Reciprocating
Compressor Oil
DTE Oil Heavy Medium
Dectol R&O Oil
Conoco®
Dectol R&O Oil
Texaco®
Regal R&O Oil
Sun®
SunVis 900 Oil
Note: Flexible couplings are not suitable for
reciprocating compressors. Never operate a
reciprocating compressor without a flywheel.
Drivers should be selected so the compressor operates
between 350 to 825 RPM. The unit must not be
operated without the flywheel or severe torsional
imbalances will result that could cause vibration and
high horsepower requirement. The flywheel should
never be replaced by another pulley unless it has a
higher wk2 value than the flywheel.
A humid climate can cause problems, particularly in
explosion proof motors. The normal breathing of the
motor, and alternating between being warm when running
and being cool when stopped, can cause moist air to be
drawn into the motor. This moist air will condense, and
may eventually add enough water inside the motor to
cause it to fail. To prevent this, make a practice of running
the motor at least once a week on a bright, dry day for an
hour or so without the V-belts. In this period of time the
motor will heat up and vaporize the condensed moisture,
driving it from the motor. No motor manufacturer will
guarantee their explosion proof or totally enclosed
(TEFC) motor against damage from moisture.
ISO
VI
SAE
Ambient Temp.
100
68
46
95
95
95
30
20+
20
65° - 100° F
45° - 70° F
35° - 50° F
100
95
30
65° - 100° F
64
44
95
95
20+
20
45° - 100° F
35° - 50° F
100
68
46
98
97
99
30
20+
20
35° - 50° F
45° - 70° F
35° - 50° F
100
68
46
92
97
102
30
20+
20
65° - 100° F
45° - 70° F
35° - 50° F
100
68
46
100
100
100
30
20+
20
65° - 100° F
45° - 70° F
35° - 50° F
Figure 2.6A: Oil Selection Chart
Compressor
Model
Approximate
Quarts
Capacity Liters
91
0.9
0.8
291
1.5
1.4
491
3.0
2.8
691
7.0
6.6
Figure 2.6B: Oil Capacity Chart
2.7 Relief Valves
For installation with engine drivers, thoroughly review
instructions from the engine manufacturer to assure the
unit is properly installed.
An appropriate relief valve must be installed at the
compressor discharge. On Corken 107-style mounted
units a relief valve should be fitted in the piping
between the compressor discharge and the four-way
valve (see figure 1.3A). Relief valves should be made of
a material compatible with the gas being compressed.
Local codes and regulations should be checked for
specific relief valve requirements. Also, relief valves
may be required at other points in the compressor’s
system piping.
2.6. Crankcase Lubrication
Non-detergent oil is recommended for Corken vertical
compressors. Detergent oils tend to keep wear particles
and debris suspended in the oil, whereas non-detergent
oils let them settle in the bottom of the crankcase.
When non-detergent oils are not available, detergent
oils may usually be successfully substituted, although
compressors handling ammonia, amine, or imine gases
are notable exceptions. These gases react with the
detergent and cause the crankcase oil to become
corrosive and contaminated. Figures 2.6A and 2.6B show
recommended oil viscosities and crankcase capacities.
2.8 Truck Mounted Compressors
Corken compressors are may be mounted on trucks to
perform liquid transfer operations as described in section
1.1. The compressor should be mounted so the inspection
plate is accessible for packing adjustment. The compressor
must be protected against liquid as explained in section 2.4
and a relief valve must be installed in the discharge piping
before the first downstream shutoff valve.
Synthetic lubricants are generally not necessary. Please
consult your lubricate supplier if you are considering the
use of synthetic oil.
12
Three types of mountings are typically used. The inside
mounting (figure 2.8A) drives the compressor directly off
the PTO shaft. The PTO must be selected to drive the
compressor between 400 and 800 RPM. An extended
compressor crankshaft is required so the U-joint yoke
may connect to the compressor without removing the
flywheel. Do not operate the compressor without a
flywheel. Use a U-joint with a splined joint and make
sure the connections are parallel and in line. The U-joint
angle should be less than 15 degrees (see figure 2.8B).
Always use an even number of U-joints.
Figure 2.8A: Inside Transport Mounting
Depending on the truck design, the compressor may be
outside or top mounted as shown in figures 2.8C and
2.8D to be V-belt driven. Power is transmitted through
a U-joint drive shaft, jackshaft with two pillow block
bearings, V-belt sheave and V-belts. An idle pulley may
be used under the truck frame.
2.9 Shutdown/Alarm Devices
For many applications, shutdown/alarm switches will
provide worthwhile protection that may prevent serious
damage to your compressor system. All electronic devices
should be selected to meet local code requirements.
Shutdown/alarm devices typically used on Corken
compressors are:
Figure 2.8B: U-joint Drive for Compressor
Low Oil Pressure Switch: Shuts down the unit if crankcase
oil pressure falls below 12 psi due to oil pump failure or
low oil level in crankcase.
High Temperature Switch: Shuts down the unit if the
normal discharge temperature is exceeded. This is
strongly recommended for all applications. Typically,
the set point is about 30°F (-1°C) above the normal
discharge temperature.
Low Suction, High Discharge Pressure Switch: Shuts
down the unit if inlet or outlet pressures are not within
preset limits.
Figure 2.8C: Outside Transport Mounting
Vibration Switch­: Shuts down the unit if vibration
becomes excessive. Recommended for units mounted
on portable skids.
Figure 2.8D: Top Transport Mounting
13
Chapter 3—Starting Up Your Corken Compressor
NOTE: Before initial startup of the compressor be
sure the principal of using a compressor for liquid
transfer by vapor differential pressure is understood
(see section 1.1). Read this entire chapter, then
proceed with the startup checklist.
3.1 Inspection After
Extended Storage
If your compressor has been out of service for a long
period of time, you should verify that the cylinder bore
and valve areas are free of rust and other debris (see
chapter 5 of this IOM manual for valve and/or cylinder
head removal instructions).
Figure 3.2A: Flywheel Installation
Drain the oil from the crankcase and remove the
nameplate and crankcase inspection plate. Inspect the
running gear for signs of rust and clean or replace parts
as necessary. Replace the crankcase inspection plate
and fill crankcase with the appropriate lubricant. Squirt
oil on the crossheads and rotate the crankshaft by hand
to ensure that all bearing surfaces are coated with oil.
Rotate unit manually to ensure running gear functions
properly. Replace nameplate and proceed with startup.
3.2 Flywheel and V-belt Alignment
Before working on the drive assembly, be sure that the
electric power is disconnected. When mounting new
belts, always make sure the driver and compressor are
close enough together to avoid forcing.
Figure 3.2B: Belt Tension
Tighten the belts so that they are taut, but not extremely
tight. Consult your V-belt supplier for specific tension
recommendations. Belts that are too tight may cause
premature bearing failure. Refer to figure 3.2B.
Improper belt tension and sheave alignment can cause
vibration, excessive belt wear and premature bearing
failures. Before operating your compressor, check alignment
of the V-grooves of the compressor flywheel and driver
sheave. Visual inspection often will indicate if the belts are
properly aligned, but use of a square is the best method.
3.3 Crankcase Oil Pressure
Adjustment
The flywheel is mounted on the shaft via a split, tapered
bushing and three bolts. These bolts should be tightened in
an even and progressive manner until torqued as specified
below. There must be a gap between the bushing flange
and the flywheel when installation is complete. Always
check the flywheel runout before startup and readjust
if it exceeds the value listed in Appendix C.
Bushing Size
Diameter
In. (cm)
SF
4.625 (11.7)
30 (4.1)
E
6.0 (15.2)
60 (8.3)
J
7.25 (18.4)
135 (18.7)
Corken compressor models 291 through 891 are
equipped with an automatically reversible gear type oil
pump (if your compressor is the splash lubricated Model
91, proceed to section 3.4). It is essential to ensure
the pumping system is primed and the oil pressure is
properly adjusted in order to assure smooth operation.
Bolt Torque
Ft.-lb. (kg-meter)
Before starting your compressor, check and fill the
crankcase with the proper quantity of lubricating oil.
When the compressor is first started, observe the
crankcase oil pressure gauge. If the gauge fails to
indicate pressure within 30 seconds, stop the machine.
14
8. Check V-belt tension and alignment. Check drive
alignment on direct drive units.
Remove the pressure gauge. Restart the compressor
and run it until oil comes out of the pressure gauge
opening. Reinstall the gauge.
9.Rotate unit by hand. Check flywheel for wobble or play.
The oil pressure should be about 20 psi (1.4 bars) minimum
for normal service. If the discharge pressure is above 200
psi (14.8 bars) the oil pressure must be maintained at a
minimum of 25 psi (1.7 bars). A spring-loaded relief valve
mounted on the bearing housing opposite the flywheel
regulates the oil pressure. As shown in figure 3.3A, turn
the adjusting screw clockwise to increase the oil pressure
and counterclockwise to lower it. Be sure to loosen the
adjusting screw locknut before trying to turn the screw and
tighten it after making any adjustment.
10.Check crankcase oil level.
11.Drain all liquid traps, separators, etc.
12.Verify proper electrical supply to motor and panel.
13.Check that all gauges are at zero level reading.
14.Test piping system for leaks.
15.Purge unit of air before pressurizing with gas.
16.Carefully check for any loose connections or bolts.
Oil Pressure
Adjusting
Screw
17.Remove all stray objects (rags, tools, etc.) from vicinity
of unit.
-
+
18.Verify that all valves are open or closed as required.
19.Double-check all of the above.
Lock Nut
Oil Pump Cover
After Starting Compressor
1. Verify and note proper oil pressure. Shut down and
correct any problem immediately.
Oil Level Bayonet
Oil Pressure Gauge
2. Observe noise and vibration levels. Correct immediately
if excessive.
Figure 3.3A: Oil Pressure Adjustment
3. Verify proper compressor speed.
3.4 Startup Check List
4. Examine entire system for gas, oil or water levels.
Please verify all of the items on this list before
starting your compressor! Failure to do so
may result in a costly (or dangerous) mistake.
5. Note rotation direction.
6. Check start-up voltage drop, running amperage and
voltage at motor junction box (not at the starter).
Before Starting the Compressor
7. Test each shutdown device and record set points.
1.Become familiar with the function of all piping associated
with the compressor. Know each line’s use!
8. Test all relief valves.
2. Verify that actual operating conditions will match the
anticipated conditions.
9. Check and record all temperatures, pressures and
volumes after 30 minutes and 1 hour.
3. Ensure that line pressures are within cylinder
pressure ratings.
10.After 1 hour running time, tighten all head bolts, valve
holddown bolts, and baseplate bolts. See Appendix C
for torque values.
4. Clean out all piping.
5. Check all mounting shims, cylinder and piping
supports to ensure that no undue twisting forces exist
on the compressor.
6. Verify that strainer elements are in place and clean.
7. Verify that cylinder bore and valve areas are clean.
15
Chapter 4—Routine Maintenance Chart
Item to Check
Daily
Weekly
Monthly
Six
Months
Yearly
Crankcase oil pressure
Compressor discharge pressure
Overall visual check
2
Crankcase oil level
2
3
Drain liquid from accumulation points
Drain distance pieces
Clean cooling surfaces on compressor and
intercooler (if any)
Lubricator supply tank level (if any)
1
Check belts for correct tension
Inspect valve assemblies
Lubricate motor bearings in accordance with
manufacturers' recommendations
Inspect motor starter contact points
1
Inspect piston rings1
1Piston
1
ring life varies greatly, depending on application, gas, and operating pressures. Consult factory for additional recommendations for
your specific application.
2Change oil every 2,200 hours of operation or every 6 months, whichever occurs first. If the oil is unusually dirty, change it as often as needed
to maintain a clean oil condition. Change replacement filter 4225 with every oil change.
3Liquid traps should be drained prior to startup.
16
Chapter 5—Routine Service and Repair Procedures
CAUTION: Always relieve pressure in the unit before
attempting any repairs. After repair, the unit should
be pressure tested and checked for leaks at all joints
and gasket surfaces.
Valve Holddown Assemblies: Depending on your model
of compressor, the valve holddown assembly has all or a
combination of the following:
1. Valve cap
If routine maintenance is performed as listed in chapter
4, repair service on your Corken gas compressor is
generally limited to replacing valves or piston rings.
When it comes time to order replacement parts, be sure
to consult the part details appendix in the back of this
Installation, Operation & Maintenance (IOM) manual for a
complete list of part numbers and descriptions.
2. Valve cap O-ring
3. Holddown screw
4. Valve cover plate
5. Valve cover plate bolts
5.1 Valves
6. Valve cover plate O-ring
Test the compressor valves by closing the inlet piping valves
while the unit is running; however, do not allow the machine
to operate in this way very long. If the inlet pressure gauge
does not drop to zero almost immediately, one or more of
the valves is probably either damaged or dirty. It is possible,
of course, that the pressure gauge itself is faulty.
7. Valve spacer (model 491 only)
Inspect valves for breakage, corrosion, and scratches on
the valve disc and debris. In many cases, valves may simply
be cleaned and reinstalled. If the valves show any damage,
they should be repaired or replaced. Replacement is usually
preferable, although individual parts are available. If valve
discs are replaced, seats should also be lapped until they
are perfectly smooth. If more than .005 in. must be removed
to achieve a smooth surface, the valve should be discarded.
If discs are replaced without relapping the seat, rapid wear
and leakage may occur.
Valve Assemblies: Depending on your valve specification,
the valve assembly has all or a combination of the following:
Each suction and/or discharge valve assembly is easily
removed as a unit for inspection. If any part of the valve
assembly is broken, the valve assembly should be replaced.
See valve assembly parts details in the appendices for a
complete list of part numbers and descriptions.
5. Valve seat
8. Valve cage
9. Valve assembly
10.Valve gasket
1. Gasket
2. Adjusting screw
3.Relief ball spring
4.Relief ball
6. Valve plate
7. Spacers
8. Washer
If a valve is leaking due to dirt or any other foreign
material that keeps the valve plate and seat from sealing,
the valve may be cleaned and reused. New gaskets and/
or O-rings should be used to assure a good seal.
9. Valve spring
10.Suction valve post
11.Valve bumper
The valve holddown assemblies and valve assemblies on
the following pages show the various specifications used
on models 91, 291, 491, 691 and 891 compressors. Since
more than one suction valve arrangement is available for
each model of compressor, it is necessary to know your
complete model number so you can identify the valve
type specification number (see example listed below).
In most cases for liquid transfer and/or vapor recovery
compressors, the valve type will be spec. 3.
12.Valve gasket
See valve holddown and valve assembly part details
in the appendix for a complete list of part numbers
and descriptions.
Valve Inspection and/or Replacement for Models 91
and 291 Compressors
Model number 491AM 3 FBANSNN
Before removing and inspecting the valves, begin by
depressurizing and purging (if necessary) the unit.
Valve type = spec 3
17
Disassembly
the holddown screw has been secured with an impact
wrench at the factory, you will probably need to wait to
remove the holddown screw until after the cover plate
has been removed. At this point in time, the holddown
screw can be easily removed from the cover plate. The
holddown screw on model 691 and 891 is most easily
removed with the special wrench supplied with your
compressor at time of purchasing.
1.Unscrew the valve cap and remove O-ring.
2. With the special wrench supplied with your compressor
at time of purchase, remove the holddown screw.
3. After the holddown screw has been removed, the
valve assembly and valve gasket can be lifted out.
3. After the cover plate and O-ring have been removed,
the valve spacer (model 491 only), valve cage, valve
assembly and valve gasket can be lifted out.
4. Carefully inspect for dirt or broken/damaged parts.
5. Inspect valves for breakage, corrosion, debris and
scratches on the valve disc or plate. In many cases,
valves may simply be cleaned and reinstalled. If the
valves show any damage, they should be repaired or
replaced. Replacement is usually preferable although
repair parts are available. If valve plates are replaced,
seats should also be lapped until they are perfectly
smooth. If more than .005 in. must be removed
to achieve a smooth surface, the valve should be
discarded. If plates are replaced without relapping the
seat, rapid wear and leakage may occur.
4. Inspect valves for breakage, corrosion, debris and
scratches on the valve plate. In many cases, valves may
simply be cleaned and reinstalled. If the valves show
any damage, they should be repaired or replaced.
Replacement is usually preferable although repair
parts are available. If valve plates are replaced, seats
should also be lapped until they are perfectly smooth.
If more than .005 in. must be removed to achieve a
smooth surface, the valve should be discarded. If
plates are replaced without relapping the seat, rapid
wear and leakage may occur.
Assembly
1. Insert metal valve gasket into the suction and/or discharge
opening of the head. The metal valve gasket should
always be replaced when the valve is reinstalled.
Assembly
1. Insert metal valve gasket into the suction and/or discharge
opening of the head. The metal valve gasket should
always be replaced when the valve is reinstalled.
2. Insert cleaned or new valve assembly. Make sure the
suction and discharge valves are in the proper suction and
discharge opening in the head. NOTE: The spec 3 suction
valves for a model 91 and 291 compressor are pre-set so
no adjustments to liquid relief pressure are necessary.
2. Insert cleaned or new valve assembly. Make sure the
suction and discharge valves are in the proper suction
and discharge opening in the head.
3. Insert the valve cage and valve spacer (NOTE: spacer
applies to model 491 compressor only).
3.Replace the holddown screw and tighten to the value
listed in Appendix C to ensure the valve gasket is
properly seated. NOTE: Gaskets and O-rings are not
normally reusable.
4.Replace the O-ring and valve cover plate. Torque
bolts to the value listed in Appendix C. CAUTION: Be
sure the holddown screw has been removed.
4.Replace the O-ring (or gasket) and valve cap and
tighten to the value listed in Appendix C. O-rings
sealing the valve caps should be replaced.
5. Insert the holddown screw and tighten to the value
listed in Appendix C to ensure the valve gasket is
properly seated. NOTE: Gaskets and O-rings are not
normally reusable.
5. Check bolts and valve holddown screws after first
week of operation. Re-torque if necessary. See
Appendix C for torque values.
6.Replace the O-ring (or gasket) and valve cap/nut and
tighten to the value listed in Appendix C. O-rings sealing
the valve cap should be replaced if they show signs of
wear or damage. Valve caps sealed by flat metals
gaskets should be reinstalled with new gaskets.
Valve Inspection and/or Replacement for Models
491, 691 and 891 Compressors
Before removing and inspecting the valves, begin by
depressurizing and purging (if necessary) the unit.
7. NOTE: Spec 3 suction valves have an adjusting screw
to set the liquid relief pressure. To set the liquid relief
pressure, tighten the adjusting screw until it bottoms,
then back out 3/4 turn.
Disassembly
1.Unscrew the valve cap/nut and remove the gasket
from the coverplate.
8. Check bolts and valve holddown screws after first
week of operation. Re-torque if necessary. See
Appendix C for torque values.
2.Remove the valve cover plate, O-ring and holddown
screw by removing each of the four bolts. NOTE: Since
18
5.2 Heads
5.4 Pistons
A compressor head very seldom requires replacement if
the compressor is properly maintained. The primary cause
of damage to a head is corrosion and the entry of solid
debris or liquid into the compression chamber. Improper
storage can also result in corrosion damage to the head
(for proper storage instructions see chapter 6).
1. To replace the pistons, depressurize the compressor
and purge if necessary.
2.Remove the compressor cylinder and head (see
section 5.2).
3.Remove the piston head by loosening and removing
the socket head bolts holding the piston head to the
piston platform (see figure 5.3A).
Many compressor repair operations require removal
of the head. While the compressor is disassembled,
special care should be taken to avoid damage or
corrosion to the head. If the compressor is to be left
open for more than a few hours, bare metal surfaces
should be coated with rust preventative.
4. Next, remove the roll pin with a pair of needle nose
pliers. The castellated nut may then be removed and the
piston platform lifted off the end of the piston rod.
When reassembling the compressor, make sure the bolts
are retightened as shown in Appendix C.
5. Check the thrust washer and shims for damage and
replace if necessary.
5.3 Piston Rings and
Piston Ring Expanders
6.Before installing the new piston, measure the thickness
of the existing shims. For Models 91 through 491, the
shims are placed between the thrust washer and
piston platform. For model 691, the shims are placed
between the platform and piston head (see figures
5.4A and 5.4B).
7.Reinstall the piston platform with the same thickness
of shims as before, BUT DO NOT REINSTALL THE
ROLL PIN.
8.Replace the cylinder and install the piston heads with
new piston rings and expanders.
9. Now measure dimension “X” shown in the illustration.
If this measurement does not fall within the tolerances
shown in Appendix C, remove the piston, adjust the
shims as necessary and remeasure the “X” dimension.
Figure 5.3A: Piston Removal
10.When the piston is properly shimmed, tighten the
castellated nut as shown in Appendix C.
Piston ring life will vary considerably from application to
application. Ring life will improve dramatically at lower
speeds and temperatures.
11.Now install a new roll pin to lock the castellated piston
nut in place.
1. To replace the piston rings, depressurize the
compressor and purge if necessary.
2.Remove the head to gain access to the compressor
cylinder.
3. Loosen the piston head bolts. Remove the piston
as shown in figure 5.3A by pinching two loose
bolts together.
4. Piston rings and expanders may then be easily
removed and replaced. Corken recommends
replacing expanders whenever rings are replaced.
To determine if rings should be replaced, measure
the radial thickness and compare it to the chart in
Appendix C.
Figure 5.4A: Piston Cross Section
Model Sizes 91 Through 491
19
chamber. Improper storage can also result in corrosion
damage to cylinder (for proper storage instructions
see chapter 6).
If the cylinder does become damaged or corroded, use
a hone to smooth the cylinder bore and then polish it
to the value shown in Appendix C. If more than .005
in. must be removed to smooth the bore, replace the
cylinder. Cylinder liners and oversized rings are not
available. OVERBORING THE CYLINDER WILL RESULT
IN GREATLY REDUCED RING LIFE.
Figure 5.4B: Piston Cross Section
Model 691
Many compressor repair operations require removal of the
cylinder. While the compressor is disassembled, special
care should be taken to avoid damage or corrosion to
the cylinder. If the compressor is to be left open for more
than a few hours, bare metal surfaces should be coated
with rust preventative.
12.Install the piston head and tighten the socket head
bolts in an alternating sequence.
When reassembling the compressor, make sure the bolts
are retightened as shown in Appendix C.
13.Reinstall the head (see section 5.2) and follow standard
startup procedure. (Note: Some compressors may
have self-locking nuts without roll pins.)
Packing Replacement Instructions
Caution: Bleed all pressure from the compressor and piping,
and purge (if necessary), before starting to install new piston
rod packing. After repair, the unit should be pressure tested
and checked for leaks at all joints and gasket surfaces.
When the compressor is being used with toxic, dangerous,
flammable or explosive gases, this pressure and leak testing
should be done with air or a dry, inert gas such as nitrogen.
5.5 Piston Rod Packing Adjustment
Piston rod packing should be adjusted or replaced
whenever leakage becomes noticeable. Typically, it is
a good idea to replace piston rod packing and piston
rings at the same time. For instructions on adjusting and
replacing the piston rod packing, see section 5.6.
For simplicity, heads, pistons, and inspection plates are
not shown. For specific construction details and actual
part numbers, consult the appendix in the back of this
IOM manual. Use instructions below that apply to the
MODEL and SERIAL NUMBER of your compressor. Be
careful to arrange packing sets in the proper order.
NOTE: Inspection of the rod packing is generally not
productive, since packing that cannot be adjusted to an
acceptable leakage rate should be replaced.
Cleanliness:
Sealing a reciprocating piston rod is a very difficult
task. Keep all parts, tools and your hands clean during
installation. Your new packing needs every chance it can
get, so keep it clean.
Workmanship:
Your Corken compressor is a precision piece of equipment
with very close tolerances. Treat it as such. Never beat
on it to get parts in or out.
Figure 5.5A: Packing Adjusting Nuts
Model 91 Compressor
5.6 Cylinder and
Packing Replacement
(Refer to Appendix G for packing assembly details)
Disassembly of Packing
1.Depressurize and open the compressor.
Cylinders very seldom require replacement if the
compressor is properly maintained. The primary
cause of damage to cylinders is corrosion and the
entry of solid debris or liquid into the compression
2.Remove head, piston, cylinder, inspection plate and
crosshead guide.
20
2. Slightly thread in adjusting screw.
3. Loosen adjusting screw and remove retainer ring,
washers, packing spring and old packing from
crosshead guide.
3. Install packing rings including male and female
packing rings, one at a time, as shown in Appendix H
or I. Push in each one completely before adding the
next ring. The quantity of packing rings required will
vary due to tolerances; a good rule of thumb is to put
in as many as are removed.
Assembly of Packing
1. Clean, then lightly oil, packing area inside the
crosshead guide.
2. Slightly thread in the adjusting screw into the
crosshead guide.
4. Insert thin packing box washer, packing spring and
thicker washer.
3. Install packing rings including male and female packing
rings one at a time as shown in Appendix G. Push
in each one completely before adding the next ring.
The quantity of packing rings required will vary due to
tolerances; a good rule of thumb is to put in as many as
are removed.
5. Push down on washer and insert retainer ring.
6. Tighten adjusting screw until plastic locking device
engages the first thread in the packing box cartridge.
7. Oil piston rod and replace cartridge O-ring.
4. Insert thin packing box washer, packing spring and
thicker washer into the top of the crosshead guide.
8. Install packing installation cone part number 4005
over the threaded end of the piston rod.
5. Tighten adjusting screw until plastic locking device
engages the first thread in the crosshead guide.
9. Carefully slip the packing cartridge over the piston
rod; otherwise, you may damage the lips of the
packing rings.
6. Oil piston rod and install the packing installation cone
(part number 4005) over the threaded end of the
piston rod.
10.Remove packing installation cone.
11.Install and tighten cartridge holddown screw with
special wrench.
7. Carefully slip the crosshead guide over the piston
rod; otherwise, you may damage the lips of the
packing rings.
12.Install cylinder O-ring, cylinder, pistons and head.
8.Remove packing installation cone.
Model 691 Compressor
9. Install the crosshead guide O-ring, cylinder, piston
and head.
(Refer to Appendix J for packing assembly details)
Model 291 Compressor (serial no. SS55685 and later)
Model 491 Compressor (serial no. XC30633 and later)
1.Depressurize and open the compressor.
Disassembly of Packing
2.Remove head, pistons and cylinder.
(Refer to Appendix H or I for packing assembly details)
3.Remove cartridge holddown screw with special
wrench supplied with the compressor and packing
box cartridge.
Disassembly of Packing
1.Depressurize and open the compressor.
4. Loosen adjusting screw and remove retainer ring,
washers, packing spring and old packing from packing
box cartridge.
2.Remove head, pistons and cylinder.
3.Remove cartridge holddown screw with special
wrench supplied with the compressor and packing
box cartridge.
Assembly of Packing
1. Clean then lightly oil packing area inside packing box
cartridge.
4. Loosen adjusting screw and remove retainer ring,
washers, packing spring and old packing from packing
box cartridge.
2. Thread in adjusting screw until locking device is
engaged into first thread of the packing cartridge.
Assembly of Packing
3. Install packing rings, including male and female packing
rings, one at a time, as shown in Appendix J. Push in
each one completely before adding the next ring.
1. Clean, and then lightly oil, packing area inside packing
box cartridge.
21
removing the head, cylinder, piston, crosshead guide
and crosshead assembly.
4. Insert a packing washer, packing spring and another
packing washer.
5. Push down on washer and insert retainer ring.
2.Drain the crankcase and remove the inspection plate(s).
6. Oil piston rod and replace cartridge O-ring.
3.Before disassembly, choose and mark one connecting
rod and the corresponding connecting rod cap. DO
NOT MIX CONNECTING RODS AND CAPS. Loosen and
remove the connecting rod bolts in order to remove the
crosshead and connecting rod assembly.
7. Install packing installation cone part number 3905
over the threaded end of the piston rod.
8. Carefully slip the packing cartridge over the piston
rod; otherwise, you may damage the lips of the
packing rings.
5.7.1 Wrist Pin Bushing Replacement
1. To replace the wrist pin bushing, remove the retainer
rings that position the wrist pin in the crosshead.
9. Install and tighten cartridge holddown screw with
special wrench.
2. Press out the wrist pin so the crosshead and
connecting rod may be separated. Inspect the wrist
pin for wear and damage and replace if necessary.
10. Replace cylinder O-ring, cylinder, pistons and head.
Model D891 Compressor
3. Press out the old wrist pin bushing and press a new
bushing into the connecting rod. DO NOT MACHINE THE
O.D. OR I.D. OF THE BUSHING BEFORE PRESSING
INTO CONNECTING ROD.
(Refer to Appendix K for packing assembly details)
Disassembly of Packing
1.Depressurize and open the compressor.
4. Make sure the lubrication hole in the bushing matches
the oil passage in the connecting rod. If the holes do
not align, drill out the bushing through the connecting
rod lubricant passage with a long drill. Bore the
wrist pin bushing I.D. as indicated on the respective
connecting rod assembly details. These pages are
located in the appendices. Over boring the bushing can
lead to premature failure of the wrist pin bushing.
2.Remove the cylinder cap, heads, pistons and cylinder.
3. To remove the packing barrels, pry upward under
each one and lift entire barrel/cartridge assembly up
from piston rod.
4.Remove the four socket head screws that hold the
packing cartridge to the barrel.
5. Inspect the oil passage for debris and clean thoroughly
before proceeding.
Assembly of Packing
1.Replace packing as required. The segmented packing
and cups are in the barrel. The V-ring packing is in
the cartridge. Note the arrangement of the particular
packing set for the model machine you have.
6. Press the wrist pin back into the crosshead and
wrist pin and reinstall retainer rings. NOTE: The
fit between the wrist pin and bushing is tighter
than ordinary lubricated air compressors and
combustion engines.
2.Reattach the cartridges to the barrels using the four
socket head screws.
5.7.2 Replacing Connecting Rod Bearings
3. Install cartridge barrel assemblies, noting the
alignment of the barrels as they sit on the crosshead
guide. The valve scallops on the barrels must align
properly with the valves of the cylinder.
Connecting rod bearings are easily replaced by removing
the semicircular bearings. Make sure the indentations
in the connecting rod bearing and connecting rod line
up when installing the new bearings. MAKE SURE THE
ARROW AND/OR ALIGNMENT NOTCH ON CONNECTING
ROD AND CAP ARE ALIGNED.
4.Replace cylinder, pistons, heads and cap. See piston
assembly details for proper clearance values.
Before reinstalling the crosshead/connecting rod
assembly, make sure the crankshaft throw and bearing
surface are clean and lubricated. Tighten the connecting
rod bolts to the torques listed in Appendix C.
5.Rotate unit by hand to ensure proper assembly.
5.7 Bearing Replacement for
Crankcase and Connecting Rod
5.7.3 Replacing Crankcase Roller Bearings
To inspect the roller bearings, remove the flywheel from
the crankshaft and then remove the bearing carrier and
crankshaft from the crankcase. If corrosion or pitting is
1. To replace the crankcase roller bearings, wrist pin
bushing and connecting rod bearings, begin by
22
Figure 5.6.3A: Bearing Carrier Replacement
5.8 Oil Pump Inspection
present, the roller bearings should be replaced. When
replacing roller bearings, always replace the entire bearing,
not just the cup or the cone.
If the compressor operates for a prolonged period with
dirty or contaminated crankcase oil, damage to the oil
pump may result.
1. To replace the bearings, press the cups out of the
crankcase and bearing carrier and press the cones off
the crankshaft.
1. To check the oil pump, unbolt the pump cover and
remove the oil pump, spring guide, spring and oil
pump shaft adapter as shown in figure 5.8A.
2. Press the new bearings into position and reassemble
the crankshaft and bearing carrier to the crankcase.
When reinstalling the bearing carrier, make sure
the oil pump shaft slot is aligned with the pin in the
crankshaft. Make sure to install the bearing carrier
gasket so the oil passage hole is not blocked (see
figure 5.6.3A).
2. Inspect the gears in the oil pump for corrosion or
pitting and replace if necessary.
3. Check the oil pump shaft bushing in the bearing
carrier. If the bushing is corroded, pitted or worn, the
oil pump shaft bushing should be replaced.
3. In order to check the crankshaft endplay, the oil pump
must first be removed (see section 5.8).
4.Before reassembling the oil pump mechanism, replace
the O-rings in the oil pump cover and on the oil pump
adapter shaft (see figure 5.8A).
4. Press the end of crankshaft towards the crankcase; if
a clicking noise or motion is detected, the crankshaft
has too much endplay. See Appendix C.
5.Rotate the drive pin in the crankshaft to a vertical
position for easiest reassembly.
5. To reduce endplay, remove the bearing cover and
remove a thin shim. Recheck the endplay after
replacing the bearing cover.
6. Insert the shaft adapter so it engages the drive pin.
7. Next, insert the spring, spring guide and oil pump
assembly. The tang on the oil pump must align with
the slot in the shaft adapter.
6. When there is no detectable endplay, the shaft must
still be able to rotate freely. If the crankshaft sticks
or becomes abnormally warm, then the crankshaft
bearings are too tight. If the crankshaft is too tight,
add more shims, but make sure not to over shim.
(Appendix C lists the proper crankshaft endplay).
When the crankshaft can be rotated freely by hand
with proper endplay, the rest of the compressor may
be reassembled. If the crankshaft roller bearings
are too tight or too loose, premature bearing failure
will result.
8. Install the pump cover so the pin on the case is in the
opening on the oil pump assembly as shown in figure
5.8A. When you are sure the pin is properly aligned,
install the cover bolts finger tight.
9.Rotate the crankshaft by hand to ensure smooth
operation. Then rotate it in opposite directions,
listening for a click, which indicates proper alignment
of the oil pump’s pins and slots.
7.Reinstall the flywheel on the crankshaft and check the
run out as shown in Appendix C.
10.Finally, tighten the bolts in an alternating sequence. See
section 3.3 for directions on oil pressure adjustment.
23
Figure 5.8A
5.9 Servicing the Four-Way Valve
1.Remove the hex nut, indicator plate and handle from
the rotor shaft.
Unlike older units, new Corken compressors mounted in
the –107 arrangement are being supplied with a non-lube
four-way valve. No maintenance is normally required on
this valve. If you have reason to disassemble the valve,
please follow the instructions below (see figures 5.9A
and 5.9B).
2.Remove the four hex head bolts and the cap from the
body. The cap should be rotated until free; do not pry.
Inspect cap for wear and damage (see figure 5.9C).
CAUTION: Always Relieve Pressure In The Unit
Before Attempting Any Repairs.
Before Disassembly:
1.Record the position marks on the end of the rotor shaft.
2.Record the positions of the handle stops on the cap.
NOTE: A small amount of silicone grease applied
to each part before assembly facilitates assembly
if allowed.
Disassembly
Refer to the drawing for item description.
Figure 5.9A
Figure 5.9B
24
6. Assemble the new stem O-ring and the body O-ring
into their grooves in the rotor and body.
7. Place the cap over the rotor shaft.
8.Rotate the rotor so the position of the handle stops on
the cap is the same as recorded before disassembly.
9. Assemble the four hex head bolts through the cap
and into the body. Be sure that the body O-ring is in
the proper position and tighten the hex head bolts.
Figure 5.9C
3.Remove the body O-ring, stem O-ring, cap O-ring,
and top rotor washer and discard.
10.Reassemble the handle, indicator plate and hex nut.
Be sure that the handle is assembled so that the stop
on the handle mates with the stops on the cap.
4.Remove the rotor and four seals as a unit from the
body. IMPORTANT: Because of the close tolerance,
care must be taken to remove the rotor on its axis to
prevent damage to the rotor and body. Rotating the
handle with a lifting action will help remove the rotor
as shown in figure 5.9D.
Chapter 6
Extended Storage Procedures
Following a few simple procedures will greatly minimize the
risk of the unit becoming corroded and damaged. Corken
recommends the following precautions to protect the
compressor during storage:
1.Drain the crankcase oil and refill with rust inhibiting oil.
2. Operate for a few minutes while fogging oil into the
compressor suction.
Figure 5.9D
3.Relieve V-belt tension.
5.Discard the four seals. Inspect the rotor for wear
and damage.
4. Plug all openings to prevent entry of insects and
moisture. (The cylinders may also be protected by the
use of a vapor phase inhibitor, silica gel, or dry nitrogen
gas. If the silica gel is used, hang a tag on the unit
indicating that it must be removed before start-up.)
6.Remove the bottom rotor washer and discard. Inspect
the body for wear and damage.
Assembly
5. Store in a dry area, off the ground if possible.
Refer to figure 5.9B. Have the repair kit laid out.
6.Rotate the flywheel every two weeks if possible.
1. Place the new bottom rotor washer into the body.
2. Assemble the four seals and O-rings onto the
appropriate surfaces of the rotor.
3. Assemble the rotor and seal assembly into the
body. IMPORTANT: Because of the close tolerance,
care must be taken to press the rotor on its axis
to prevent damage to the rotor and body. A ring
compressor is helpful. Be sure that the rotor is
bottomed in the body.
4.Rotate the rotor so that the position marks on the
end of the rotor shaft are the same as recorded
before disassembly.
5. Assemble the new top rotor washer and cap O-ring,
onto the shoulder of the rotor.
25
Appendix A—Repair Kits and Gasket Sets
Compressor Repair Kits
Part Number
Model Number
3549-X1
3550-X1
3551-X1
3552-X1
3552-X2
90J3, 91J3
290K3, 291M3
490K3, 491M3
690K3, 690P3
690M3, 691M3
2
891M3
2532-1X
3948-X (2)
3948-X (2)
3732-X
3857-X (2)2
3857-X (2)2
3733-X
2
2797 (4)2
2797 (4)2
—
2
1719 (2)2
3542 (2)2
3542 (2)2
1452-1X1 (2)2
1725-2X (2)2
1725-2X (2)2
1725-2X,
3810-X1
1772 (6)2
1773 (6)2
1739 (6)2
1739 (6)2
1739 (8)2
2
2
2
2
3483-1X
3483-1X (2)
3485-X
3485-X (2)
—
—
2448 (4)
1367
1367 (2)2
1491 (2)
Packing set
1452-1X1
1452-1X1 (2)2
Piston rings
1772 (3)
2
2
Connecting rod bearing (pair)
2
2439-X (2)2
Suction valve assembly
Discharge valve assembly
Valve cage
2
5578-X2A
2
Ring expanders
1775 (3)
1775 (6)
1776 (6)
1740 (6)
1740 (6)
1740 (8)2
Gasket set1
3970-X1A
2526-XA1
1281-XA1
1481-X6A1
1744-X1A1
1744-X1A1
O-ring
1
—
—
—
—
2-261A (2)1, 2
—
O-ring
1
—
—
2-242A (2)1, 2
—
—
—
O-ring1
—
—
2-253A (2)1, 2
—
—
—
3526
Oil seal
3259
1278
1507 (490 only)
—
3526
Oil seal
—
—
4438 (491 only)
—
—
—
Adapter plate gasket
—
—
1486
—
—
—
1All
repair kits are furnished with Buna-N O-rings which are suitable for LPG and NH3 applications
larger than 1 are shown in parenthesis
2Quantities
Four-Way Valve Repair Kits
Description
Four-Way Valve Repair Kits
Trim
Part Number
Connection Sizes
3122-X
1"
3123-X
1¼"
3130-X
2"
PTFE and Buna-N trim
Gasket Sets
Model 91 Gasket Set (2526-XA)
Part
Number
Description
2-235A
O-ring, Buna-N
2526
2717
Model 291 Gasket Set (1281-XA)
Part
Number
Description
2
1281
Filter screen screw gasket
1
Crankcase gasket
1
1651
Inspection plate gasket
1
Valve gasket, aluminum
2
2-113A
O-ring, Buna-N
2
2729
Crankcase inspection plate gas
1
2-228A
O-ring, Buna-N
1
2-031A
O-ring, Buna-N
2
2244
Inspection plate gasket
1
2702
Crankcase gasket
1
2716
Valve cap gasket, aluminum
2
2716
Valve cap gasket, aluminum
4
2725
Bearing carrier gasket
1
2732
Center headbolt gasket - steel
2
1190
Adapter plate gasket
2
1285
Bearing carrier gasket
1
2-031A
O-ring, Buna-N
4
2-135A
O-ring, Buna-N
2
2-235A
O-ring, Buna-N
4
2713
Crankcase inspection plate gas
1
2717
Valve gasket, aluminum
4
Quantity
26
Quantity
Appendix A—Repair Kits and Gasket Sets (continued)
Model 491 Gasket Set (1481-X6A)
Part
Number
Description
1418
Valve gasket, aluminum
1480
Center headbolt gasket - steel
1488
Model 691 Gasket Set (1744-X3A)
Part
Number
Description
4
1760
Inspection plate gasket
1
2
2-031A
O-ring, Buna-N
4
Inspection plate gasket
1
2-231A
O-ring, Buna-N
2
1511
Crankcase inspection plate gas
1
2-235A
O-ring, Buna-N
4
2-139A
O-ring, Buna-N
2
2-261A
O-ring, Buna-N
2
2-228A
O-ring, Buna-N
1
2123
Crankcase inspection plate gas
2
1281
Filter screen screw gasket
1
2131
Bearing carrier gasket
1
1478
Valve cap gasket, steel
4
2716
Valve cap gasket, aluminum
4
1481
Head gasket
1
4127
Lubricator gasket
1
1489
Crankcase gasket
1
1281
Filter screen screw gasket
1
1513
Bearing carrier gasket
1
1761
Crankcase gasket
1
2-143A
O-ring, Buna-N
4
2-228A
O-ring, Buna-N
1
2-243A
O-ring, Buna-N
2
2-233A
O-ring, Buna-N
2
2-247A
O-ring, Buna-N
2
2114
Valve gasket, aluminum
4
2129
Oil inlet gasket
1
2177
Flange gasket
2
3874
Access cover gasket
2
Quantity
Model 891 Gasket Set (3970-X1A)
Part
Number
Description
1281
Filter screen screw gasket
1
1761
Crankcase gasket
1
2-036A
O-ring, Buna-N
8
2-231A
O-ring, Buna-N
4
2-238A
O-ring, Buna-N
2
2114
Valve gasket, aluminum
8
2131
Bearing carrier gasket
1
4127
Lubricator gasket
1
1760
Inspection plate gasket
1
2-031A
O-ring, Buna-N
8
2-228A
O-ring, Buna-N
1
2-235A
O-ring, Buna-N
8
2-246A
O-ring, Buna-N
4
2123
Crankcase inspection plate gas
1
3874
Access cover gasket
2
3906
Gasket spiral wound
2
Quantity
27
Quantity
Appendix B
Vertical Single-Acting Model Number Identification Code
Base Model
91
291
491
691
Inlet
3/4" NPT
3/4" NPT
1-1/4" NPT
2" NPT
Outlet
3/4" NPT
3/4" NPT
1-1/4" NPT
1-1/2" NPT
F91
F291
F491
F691
Inlet
3/4" ANSI
3/4" ANSI
1-1/4" ANSI
2" ANSI
Outlet
3/4" ANSI
3/4" ANSI
1-1/4" ANSI
2" ANSI
Base Model Packing Arrangement
Pressurized inlet
Splash lubricated
Standard
N/A
N/A
N/A
J
Crankcase Style
Extended crankshaft
Extra cost
Extra cost
Extra cost
N/A
E
Pressure lubricated
N/A
Standard
Standard
Standard
M
Standard with heater
N/A
Extra cost
Extra cost Extra cost
Standard
Model Number
Base X X X X X X X X X X
Liquid relief suction
Valves
Standard valves
A
MH
Standard
3
No extra cost
4
PTFE Piston Rings and Packing
Alloy 50
Standard
F
Extra Cost
G
Aluminum
StandardB
Gasket Material
Copper
No extra cost
Lead-iron
No extra costD
Buna-N
O-ring Material
Standard
Neoprene ®1
C
A
No extra costB
Viton®1
Extra costD
PTFE
Extra cost
Intercooler
None 14" flywheel used with
extended crankshaft
No charge
Flywheel
Heavy duty Extra cost
No flywheel
No extra cost
N
Standard flywheel
Standard
S
Protective Coating
No coating
Standard
N
Nitrotec
Standard
N
Chrome oxide
Extra cost
C
Piston Rod Coating
E
N/A for single stage compressor
Extra cost
1
Registered trademark of the DuPont company.
See Appendix D for mounting options.
28
N
N/A
Extra cost Extra cost
E
H
Appendix B
Vertical Double-Acting Model Number Identification Code
Model Number
Base X X X X X X X X X X
Base Model NumberD891
Inlet Connection
2" Weld
Outlet Connection
2" Weld
Ship Weight (lb)
900
Packing
Arrangement
Crankcase
Style
Packing arranged for padding of distance piece
Standard
Pressure lubricated
Standard
M
Standard with heater
Extra cost
MH
Standard suction and discharge valves
Standard
4
Suction valve unloaders
Extra cost
9
Piston Ring
and Packing
Material
PTFE
Standard
F
Gasket Material
Aluminum
StandardB
Valves
O-ringBuna-N
Material
Neoprene ®1
1
J
Intercooler
N/A for single stage compressor
Flywheel
Standard
A
No chargeB
Standard
N
No flywheel provided
No charge
N
Standard flywheel
Standard
S
Protective Coating
None
Standard
N
Piston Rod
Coating
Nitrotec
Standard
N
Registered trademark of the DuPont company.
Mounting Selections
103 Mounting includes: Steel baseplate, adjustable driver slide base, V-belt drive and enclosed steel belt guard. Pressure gauges are
mounted on the compressor.3
107 Mounting includes: Steel baseplate, mechanical liquid trap, non-lube 4-way valve, interconnecting piping, strainer, adjustable driver slide
base, V-belt drive and enclosed steel belt guard. Pressure gauges are mounted on the compressor.
107A Mounting includes: All items on the 107 replacing the mechanical float in the liquid trap with a NEMA 7 liquid level switch.
107B Mounting includes: All items on the 107 replacing the liquid trap with a larger ASME code liquid trap with 2 NEMA 7 liquid level
switches set for alarm and shutdown.
107TR Mounting includes: All items on the 107 set up to be used as a transport unit. Note that the compressor must have the optional 14”
flywheel and extended crankshaft to use this mounting.2
109 Mounting includes: Steel baseplate, mechanical liquid trap, interconnecting piping, adjustable driver slide base, V-belt drive and
enclosed steel belt guard. Pressure gauges are mounted on the compressor.3
109A Mounting includes: All items on the 109 replacing the mechanical float in the liquid trap with a NEMA7 liquid level switch.3
109B Mounting includes: All items on the 109 replacing the liquid trap with a larger ASME code liquid trap with 2 NEMA 7 liquid level
switches set for alarm and shutdown.3
109TR Mounting includes: All items on the 109 set up to be used as a transport unit. Note the compressor must have the optional 14”
flywheel and extended crankshaft to use this mounting.2,3
2
3
Not suitable for 691 or D891.
Discharge relief valves are required but not included in these mountings.
29
Appendix C—Vertical Single-Acting Specifications
Models 91–691
Equipment Type & Options
Applications
Single-acting, vertical, reciprocating piston type vapor compressor
Single packed rod
NPT or 300# ANSI connections
Bulk transfer
Vapor recovery
Tank evacuation
Gas scavenging
Features and Benefits
Self-lubricating piston rings:
Non-lubricated operation to minimize oil in gas
NPT or 300# ANSI connections:
Versatility for your application
Multiple mounting configurations:
Versatility for your application
High efficiency valves:
Quiet, reliable operation
Reversible oil pump:
Allows operation in either direction
Simplified top down design:Routine maintenance is minimally invasive
Specifications
Specification
Bore of cylinder inches (mm)
Stroke inches (mm)
Piston displacement cfm (m3/hr)
minimum @ 400 RPM
maximum @ 825 RPM
Maximum working pressure psig (bar g)1
Maximum brake horsepower (kW)
Maximum rod load lb (kg)
Maximum outlet temperature °F (°C)
Bare unit weight lb (kg)
Maximum flow—propane gpm (m3/hr)
91
3.0 (76.2)
2.5 (63.5)
4.0 (6.8)
8.3 (14.1)
7.5 (5.6)
3,600 (1,632.9)
115 (52.2)
50 (11.4)
1These
Model Number
291
491
3.0 (76.2)
4.0 (101.6)
2.5 (63.5)
3.0 (76.2)
8.0 (13.6) 16.5 17.2 (29.2) 35.5
(28.0)
(60.3)
335 (23.1)
15 (11)
15 (11)
3,600 (1,632.9) 4,000 (1,814.4)
350 (177)
160 (72.6)
260 (117.9)
101 (22.9)
215 (48.8)
691
4.5 (114.3)
4.0 (101.6)
29.2 (49.6)
60.2 (102.3)
35 (26.1)
7,000 (3,175.1)
625 (283.5)
361 (82.0)
numbers specify pressure-containing abilities of the compressor cylinder and head. For many applications, factors other than the
pressure rating will limit the maximum allowable discharge pressure to lower values. These factors include horsepower, temperature and rod
load.
30
Appendix C—Vertical Single-Acting Specifications
Models 91–691 Material Specifications
Part
Head, Cylinder
Crosshead guide
crankcase, flywheel,
bearing carrier
Flange
Valve seat & bumper
Valve plate
Valve spring
Valve gaskets
Piston
Piston rod
Crosshead
Piston rings
Ring expanders
Head gasket
Packing cartridge,
connecting rod
Packing rings
Crankshaft
Con. rod bearing
Wrist pin
Wrist pin busing
Main bearing
Inspection plate
O-rings
Retainer rings
Misc. gaskets
1
Model
All
Standard Material
Ductile iron ASTM A536
Optional Material
None
All
Gray iron ASTM A48, Class 30
None
691
91, 291
491
691
91, 291
491
691
91, 291, 691
491
All
All
All
All
All
All
All
Ductile iron ASTM A536
17-4 PH stainless steel
Ductile iron ASTM A536
17-4 PH stainless steel
410 stainless steel
17-7 PH stainless steel
410 stainless steel
17-7 PH stainless steel
Inconel
Soft aluminum
Gray iron ASTM A48, Class 30
C1050 steel Nitrotec coated
Gray iron ASTM 48, Class 30
PTFE, glass and moly filled
302 stainless steel
O-ring, Buna-N
Steel weld flange
Iron-lead, Copper
None
Chrome oxide
None
Alloy 50
None
PTFE, Viton®1, Neoprene®1
All
Ductile iron ASTM A536
None
All
All
All
All
All
All
All
All
All
All
PTFE, glass and moly filled
Ductile iron ASTM A536
Bimetal D-2 babbit
C1018 steel
Bronze SAE 660
Tapered roller
Aluminum
Buna-N
Steel
Coroprene
Alloy 50
None
None
None
None
None
None
PTFE, Viton®1, Neoprene®1
None
None
Registered trademark of the DuPont company.
31
None
None
None
Appendix C—Vertical Single-Acting Specifications
Bolt Torque Values
Model
Conn.
Rod
Bolt
ft•lb
91
Bearing Bearing
Carrier
Cover
ft•lb
ft•lb
Crankcase
Inspec
Plate
ft•lb
28
38
38
15
X-Head
Guide
ft•lb
Cyl. to
Head
(1.2)
ft•lb
Valve
Cover
Plate
Bolt
ft•lb
Valve
Holddown
Screw
2
ft•lb
Piston
Lock
Nut
Torque
ft•lb
Piston
Screw
Torque
in•lb
Valve Cap
Torque
(w/
Gaskets)
ft•lb
Valve Cap
Torque
(w/
O-rings)
ft•lb
30
20
—
40
45
50
40
25
291
28
30
30
13
25
20
—
40
45
50
40
25
491
30
26
35
8
33
33
35
40
45
100
40
25
691
40
40
40
9
40
30
37
40
60
100
40
25
1Preliminary
2Retorque
tightening – snug all head bolts in the sequence shown. Final torqueing – torque all head bolts in the sequence shown to the listed value.
to the listed value after 2 – 5 hours running time.
32
Appendix C—Vertical Single-Acting Specifications
Clearances and Dimensions
**Clearance: “X” piston figure 5.4A &
5.4B
Clearance: connecting rod bearing to
crankshaft journal
Clearance: wrist pin to wrist pin
bushing* (max)
Cylinder bore diameter (max)
Cylinder finish (RMS)
Piston ring radial thickness (min)
Clearance: oil pump adapter shaft to
bushing* (max)
Crankshaft end play (cold)
Flywheel runout at O.D. (max)
Clearance: crosshead to crosshead
guide bore (max)
Crosshead guide bore finish
*
91
291
491
0.020
0.044
0.0005
0.0025
0.020
0.044
0.0005
0.0025
0.000/0.020
0.024/0.044
0.0005
0.0025
691/D891
(M crankcase)
0.000/0.015
0.012/0.027
0.0019
0.0035
0.0009
0.0009
0.0009
0.0020
3.009
16-32
0.082
3.009
16-32
0.082
4.011
16-32
0.082
4.515
16-32
0.082
0.0050
0.0050
0.0050
0.0050
0.000
0.002
0.020
0.000
0.002
0.020
0.000
0.002
0.020
0.002
0.003
0.020
0.011
0.011
0.012
0.013
32 RMS (limited number of small pits and scratches are acceptable)
Dimensions for honing are included with new bushings (which must be installed, then honed).
should be set with machine cold.
**Clearance
33
Appendix C—Vertical Double-Acting Specifications
Model D891
Equipment Type & Options
Applications
Double-acting, vertical, reciprocating piston type vapor compressor
Double packed rod
Slip-on weld connections
Bulk transfer
Truck, tank, railcar, barge unloading
LTVR and scavenger applications
Emergency evacuation
Features and Benefits
Self-lubricating piston rings:
Non-lubricated operation to minimize oil in gas
Multiple materials and configurations: Versatility for your application
Multiple mounting configurations:
Versatility for your application
High efficiency valves:
Quiet, reliable operation
Reversible oil pump:
Allows operation in either direction
Simplified top down design:Routine maintenance is minimally invasive
Operating Specifications
Bore of cylinder inches (mm)
Stroke inches (mm)
Piston displacement cfm (m3/hr)
minimum @ 400 RPM
maximum @ 825 RPM
Maximum working pressure psig (bar g)
Maximum brake horsepower (kW)
Maximum rod load lb (kg)
Maximum outlet temperature °F (°C)
Bare unit weight lb (kg)
Maximum flow—propane gpm (m3/hr)
4.5 (113)
4.0 (101.6)
56.6 (96.2)
113.2 (192.0)
465 (32.1)
45 (34)
7,000 (3,175.2)
350 (177)
855 (387.8)
694 (157.6)
34
Appendix C—Vertical Double-Acting Specifications
Model D891 Material Specifications
PartStandard Material
Head, cylinderDuctile iron ASTM A536
Distance piece
Crosshead guide
Gray iron ASTM A48, Class 30
Crankcase, flywheel
Bearing carrier
Flange
ASTM A36 carbon steel
Valve seat, bumper
17-7 PH stainless steel
Valve plate
410 stainless steel
Valve spring
17-7 PH stainless steel
Valve gaskets
Soft aluminum
PistonDuctile iron ASTM A536
Piston rod
C1050 steel, Nitrotec
Crosshead
Gray iron ASTM A48, Class 30
Piston rings
PTFE, glass and moly filled
Piston ring expanders
302 stainless steel
Head gasket
O-ring, Buna-N
Adapter plate
Packing cartridgeDuctile iron ASTM A536
Connecting rod
Packing rings
PTFE, glass and moly filled
CrankshaftDuctile iron ASTM A536
Connecting rod bearingBimetal D-2 Babbit
Wrist pin
C1018 Steel
Wrist pin bushingBronze SAE 660
Main bearing
Tapered roller
Inspection plate
Aluminum
O-ringsBuna-N
Retainer rings
Steel
Miscellaneous gaskets
Coroprene
1Registered
trademark of the DuPont company.
35
Optional Material
Copper, iron-lead
Alloy 50
PTFE, Viton®1, Neoprene®1
Alloy 50
PTFE, Viton®1, Neoprene®1
Appendix D—Compressor Selection
Compressor Mounting Selections
Inlet pressure gauge
Outlet pressure gauge
Standard 107 Items
Steel baseplate
V-Belt drive
Adjustable driver slide base
Enclosed steel belt guard
Inlet and outlet pressure gauges
40 Micron strainer
Non-lube 4-way valve
Interconnecting piping
Liquid trap as specified below
NEMA 7
liquid level
switch
(107A only)
1-1/2" NPT
107 Mounting
Mechanical liquid trap with ball float
107A Mounting
Automatic liquid trap with one NEMA 7
liquid level switch
107B Mounting
Automatic liquid trap (ASME code) with
two NEMA 7 liquid level switches
Standard 109 Items
Steel baseplate
V-Belt drive
Adjustable driver slide base
Enclosed steel belt guard
Inlet and outlet pressure gauges
Interconnecting piping
Liquid trap as specified below
109 Mounting
Mechanical liquid trap with ball float
109A Mounting
Automatic liquid trap with one NEMA 7
liquid level switch
109B Mounting
Automatic liquid trap (ASME code) with
two NEMA 7 liquid level switches
36
Appendix D—Compressor Selection
Butane Compressor Selection Table
Driver Horsepower
Liquid
Liquid
Transfer
Transfer
&
Without
Residual
Residual
Driver Sheave Size
Vapor
Vapor
CapacityDisplacement
Compressor
Pitch Diameter (inches)2
Recovery
Recovery
Piping Size 3
Service
gpm1
cfmModelRPM 1,750 RPM 1,450 RPM 100°F 80°F 100°F 80°FVapor Liquid
13
4
91
400
A 3.0
A 3.6
3
3
3
3
3/4
1-1/4
Small
17
5
91
505
A 3.8B 4.6
3
3
3
3
3/4
1-1/4
bulk
20
6
91
590B 4.6B 5.6
3
3
3
3
1
1-1/4
plants
24
7
91
695B 5.4B 6.6
5
5
5
5
1
1-1/2
23
7
290, 291
345
A 3.0
A 3.6
2
2
2
2
1
1-1/2
27
8
91
795B 6.2B 7.4
5
5
5
5
1
1-1/2
26
8
290, 291
390
A 3.4B 4.0
2
2
2
2
1
1-1/2
30
9
290, 291
435
A 3.8B 4.6
3
3
3
3
1
1-1/2
33
10
290, 291
490B 4.4B 5.2
3
3
3
3
1
2
Unloading
36
11
290, 291
535B 4.8B 5.8
3
3
3
3
1
2
single tank
39
12
290, 291
580B 5.2B 6.2
5
3
5
3
1
2
car or
42
13
290, 291
625B 5.6B 6.6
5
5
5
5
1-1/4
2
transport
47
14
290, 291
695B 6.2B 7.4
5
5
5
5
1-1/4
2
50
15
290, 291
735B 6.6B 8.0
5
5
5
5
1-1/4 2-1/2
50
15
490, 491
345
A 3.0
A 3.6
5
5
5
5
1-1/4 2-1/2
53
16
290, 291
780B 7.0B 8.6
7-1/2
5
7-1/2
5
1-1/4 2-1/2
53
16
490, 491
370
A 3.2
A 3.8
5
5
5
5
1-1/4 2-1/2
56
17
490, 491
390
A 3.4B 4.0
5
5
5
5
1-1/4
3
60
18
490, 491
415
A 3.6B 4.4
5
5
5
5
1-1/4
3
63
19
490, 491
435
A 3.8B 4.6
5
5
5
5
1-1/4
3
65
20
490, 491
445B 4.0B 4.8
5
5
5
5
1-1/4
3
68
21
490, 491
470B 4.2B 5.0
5
5
5
5
1-1/4
3
Unloading
71
22
490, 491
490B 4.4B 5.2
7-1/2
5
7-1/2
5
1-1/4
3
two or
75
23
490, 491
515B 4.6B 5.6
7-1/2
5
7-1/2
5
1-1/4
3
more tank
77
24
490, 491
535B 4.8B 5.8
7-1/2
7-1/2 7-1/2 7-1/2 1-1/4
3
cars at
81
25
490, 491
560B 5.0B 6.0
7-1/2
7-1/2 7-1/2 7-1/2 1-1/4
3
one time
84
26
490, 491
580B 5.2B 6.2
7-1/2
7-1/2 7-1/2 7-1/2 1-1/4
3
or large
87
27
490, 491
605B 5.4B 6.4
7-1/2
7-1/2 7-1/2 7-1/2 1-1/4
3
transport
91
28
490, 491
625B 5.6B 6.6
7-1/2
7-1/2 7-1/2 7-1/2 1-1/2
3
with excess
94
29
490, 491
650B 5.8B 7.0
10
7-1/2
10
7-1/2 1-1/2
3
flow valves
97
30
490, 491
670B 6.0
10
7-1/2
10
7-1/2 1-1/2
3
of adequate
94
30
690, 691
400B 4.4B 5.2
7-1/2
7-1/2 7-1/2 7-1/2 1-1/2
3
capacity
100
31
490, 491
695B 6.2B 7.4
10
7-1/2
10
7-1/2 1-1/2
3
98
31
690, 691
420B 4.6B 5.6
10
7-1/2
10
7-1/2 1-1/2
3
107
32
490, 491
740B 6.6B 8.0
10
10
10
10
1-1/2
3
103
32
690, 691
440B 4.8B 5.8
10
7-1/2
10
7-1/2 1-1/2
3
110
33
490, 491
760B 6.8B 8.0
10
10
10
10
1-1/2
3
113
34
490, 491
780B 7.0B 8.6
10
10
10
10
1-1/2
3
107
34
690, 691
455B 5.0B 6.0
10
10
10
10
1-1/2
3
111
35
690, 691
475B 5.2B 6.2
10
10
10
10
1-1/2
3
119
36
490, 491
825B 7.4B 8.6
15
10
15
10
1-1/2
3
116
36
690, 691
495B 5.4
A 6.4
10
10
10
10
1-1/2
3
120
38
690, 691
510B 5.6B 6.8
10
10
10
10
1-1/2
4
Unloading
124
39
690, 691
530B 5.8B 7.0
10
10
10
10
1-1/2
4
large
129
41
690, 691
550B 6.0
A 7.0
10
10
10
10
1-1/2
4
tank cars,
133
42
690, 691
565B 6.2­­­­­B 7.4
10
10
10
10
2
4
multiple
137
43
690, 691
585B 6.4
A 7.4
10
10
10
10
2
4
vessels,
142
45
690, 691
605B 6.6B 8.0
15
10
15
10
2
4
barges or
145
46
690, 691
620B 6.8
15
10
15
10
2
4
terminals
150
47
690, 691
640B 7.0
A 8.2
15
10
15
10
2
4
158
48
690, 691
675B 7.4B 8.6
15
15
15
15
2
4
171
54
690, 691
730B 8.0B 9.4
15
15
15
15
2
4
184
58
690, 691
785B 8.6
15
15
15
15
2
4
193
60
690, 691
820
TB 9.0
A 10.6
15
15
15
15
2
4
260
82.1D891
580
5V 7.1
5V 8.5
20
20
20
20
3
6
359
113.3D891
800
5V 9.75
5V 11.8
25
25
25
25
3
6
1The
capacities shown are based on 70°F, but will vary depending upon piping, fittings used, product being transferred and temperature. The
factory can supply a detailed computer analysis if required.
2Driver sheaves: 91 (2 belts); 290, 291, 490, 491 (3 belts); 690, 691 (4 belts).
3The piping sizes shown are considered minimum. If the length exceeds 100 ft., use the next larger size.
NOTE: Please consult factory for compressors with higher flows.
37
Appendix D—Compressor Selection
Propane Compressor Selection Table
Driver Horsepower
Liquid
Liquid
Transfer
Transfer
&
Without
Residual
Residual
Driver Sheave Size
Vapor
Vapor
CapacityDisplacement
Compressor
Pitch Diameter (inches)2
Recovery
Recovery
Piping Size 3
Service
gpm1
cfmModelRPM 1,750 RPM 1,450 RPM 100°F 80°F 100°F 80°FVapor Liquid
23
4
91
400
A 3.0
A 3.6
5
3
3
3
3/4
1-1/4
Small
29
5
91
505
A 3.8B 4.6
5
5
5
5
3/4
1-1/4
bulk
34
6
91
590B 4.6B 5.6
5
5
5
5
1
1-1/4
plants
40
7
91
695B 5.4B 6.6
5
5
5
5
1
1-1/2
39
7
290, 291
345
A 3.0
A 3.6
3
3
3
3
1
1-1/2
45
8
91
795B 6.2B 7.4
7-1/2
7-1/2 7-1/2 7-1/2
1
1-1/2
44
8
290, 291
390
A 3.4B 4.0
5
3
3
3
1
1-1/2
50
9
290, 291
435
A 3.8B 4.6
5
5
3
3
1
1-1/2
56
10
290, 291
490B 4.4B 5.2
5
5
5
5
1
2
Unloading
61
11
290, 291
535B 4.8B 5.8
5
5
5
5
1
2
single tank
66
12
290, 291
580B 5.2B 6.2
7-1/2
5
5
5
1
2
car or
71
13
290, 291
625B 5.6B 6.6
7-1/2
5
7-1/2
5
1-1/4
2
transport
79
14
290, 291
695B 6.2B 7.4
7-1/2
7-1/2 7-1/2 7-1/2 1-1/4
2
84
15
290, 291
735B 6.6B 8.0
10
7-1/2
10
7-1/2 1-1/4 2-1/2
84
15
490, 491
345
A 3.0
A 3.6
7-1/2
7-1/2
5
5
1-1/4 2-1/2
89
16
290, 291
780B 7.0B 8.6
10
10
10
10
1-1/4 2-1/2
89
16
490, 491
370
A 3.2
A 3.8
7-1/2
7-1/2 7-1/2
5
1-1/4 2-1/2
95
17
490, 491
390
A 3.4B 4.0
7-1/2
7-1/2 7-1/2 7-1/2 1-1/4
3
101
18
490, 491
415
A 3.6B 4.4
10
7-1/2 7-1/2 7-1/2 1-1/4
3
106
19
490, 491
435
A 3.8B 4.6
10
7-1/2 7-1/2 7-1/2 1-1/4
3
108
20
490, 491
445B 4.0B 4.8
10
7-1/2 7-1/2 7-1/2 1-1/4
3
114
21
490, 491
470B 4.2B 5.0
10
7-1/2 7-1/2 7-1/2 1-1/4
3
Unloading
119
22
490, 491
490B 4.4B 5.2
10
10
7-1/2 7-1/2 1-1/4
3
two or
125
23
490, 491
515B 4.6B 5.6
10
10
10
7-1/2 1-1/4
3
more tank
130
24
490, 491
535B 4.8B 5.8
15
10
10
10
1-1/4
3
cars at
136
25
490, 491
560B 5.0B 6.0
15
10
10
10
1-1/4
3
one time
141
26
490, 491
580B 5.2B 6.2
15
10
10
10
1-1/4
3
or large
147
27
490, 491
605B 5.4B 6.4
15
10
15
10
1-1/4
3
transport
152
28
490, 491
625B 5.6B 6.6
15
15
15
15
1-1/2
3
with excess
158
29
490, 491
650B 5.8B 7.0
15
15
15
15
1-1/2
3
flow valves
163
30
490, 491
670B 6.0
15
15
15
15
1-1/2
3
of adequate
163
30
690, 691
400B 4.4B 5.2
15
15
10
10
1-1/2
3
capacity
168
31
490, 491
695B 6.2B 7.4
15
15
15
15
1-1/2
3
171
31
690, 691
420B 4.6B 5.6
15
15
10
10
1-1/2
3
179
32
490, 491
740B 6.6B 8.0
15
15
15
15
1-1/2
3
178
32
690, 691
440B 4.8B 5.8
15
15
10
10
1-1/2
3
186
34
690, 691
455B 5.0B 6.0
15
15
15
10
1-1/2
3
193
35
690, 691
475B 5.2B 6.2
15
15
15
10
1-1/2
3
200
36
690, 691
495B 5.4B 6.4
15
15
15
15
1-1/2
3
208
38
690, 691
510B 5.6B 6.8
20
15
15
15
1-1/2
4
215
39
690, 691
530B 5.8B 7.0
20
15
15
15
1-1/2
4
223
41
690, 691
550B 6.0
A 7.0
20
15
15
15
1-1/2
4
230
42
690, 691
565B 6.2B 7.4
20
15
15
15
2
4
Unloading
237
43
690, 691
585B 6.4
A 7.4
20
15
15
15
2
4
large
245
45
690, 691
605B 6.6B 8.0
20
15
15
15
2
4
tank cars,
252
46
690, 691
620B 6.8
20
20
15
15
2
4
multiple
260
47
690, 691
640B 7.0
A 8.2
20
20
20
15
2
4
vessels,
275
48
690, 691
675B 7.4B 8.6
25
20
20
20
2
4
barges or
297
54
690, 691
730B 8.0B 9.4
25
20
20
20
2
4
terminals
319
58
690, 691
785B 8.6
25
20
25
20
2
4
334
60
690, 691
820
TB 9.0
A 10.6
30
25
25
20
2
4
452
82D891
580
5V 7.1
5V 8.5
30
30
30
30
3
6
623
113D891
800
5V 9.75
5V 11.8
40
40
30
3
6
1The
capacities shown are based on 70°F, but will vary depending upon piping, fittings used, product being transferred and temperature. The
factory can supply a detailed computer analysis if required.
2Driver sheaves: 91 (2 belts); 290, 291, 490, 491 (3 belts); 690, 691 (4 belts).
3The piping sizes shown are considered minimum. If the length exceeds 100 ft., use the next larger size.
NOTE: Please consult factory for compressors with higher flows.
38
Appendix D—Compressor Selection
Ammonia Compressor Selection Table
Driver Horsepower
Liquid
Liquid
Transfer
Transfer
&
Without
Residual
Residual
Driver Sheave Size
Vapor
Vapor
CapacityDisplacement
Compressor
Pitch Diameter (inches)2
Recovery
Recovery
Piping Size 3
Service
gpm1
cfmModelRPM 1,750 RPM 1,450 RPM 100°F 80°F 100°F 80°FVapor Liquid
23
4
91
400
A 3.0
A 3.6
5
3
3
3
3/4
1-1/4
Small
29
5
91
505
A 3.8B 4.6
5
5
5
3
3/4
1-1/4
bulk
34
6
91
590B 4.6B 5.6
5
5
5
5
1
1-1/4
plants
40
7
91
695B 5.4B 6.6
5
5
5
5
1
1-1/2
43
7
290, 291
345
A 3.0
A 3.6
5
3
3
3
1
1-1/2
46
8
91
795B 6.2B 7.4
7-1/2
5
5
5
1
1-1/2
45
8
290, 291
390
A 3.4B 4.0
5
3
3
3
1
1-1/2
50
9
290, 291
435
A 3.8B 4.6
5
5
3
3
1
1-1/2
56
10
290, 291
490B 4.4B 5.2
5
5
5
3
1
2
Unloading
62
11
290, 291
535B 4.8B 5.8
7-1/2
5
5
5
1
2
single tank
67
12
290, 291
580B 5.2B 6.2
7-1/2
5
5
5
1
2
car or
72
13
290, 291
625B 5.6B 6.6
7-1/2
5
5
5
1-1/4
2
transport
80
14
290, 291
695B 6.2B 7.4
7-1/2
7-1/2 7-1/2
5
1-1/4
2
85
15
290, 291
735B 6.6B 8.0
10
7-1/2 7-1/2 7-1/2 1-1/4 2-1/2
85
15
490, 491
345
A 3.0
A 3.6
7-1/2
7-1/2
5
5
1-1/4 2-1/2
90
16
290, 291
780B 7.0B 8.6
10
7-1/2 7-1/2 7-1/2 1-1/4 2-1/2
90
16
490, 491
370
A 3.2
A 3.8
10
7-1/2
5
5
1-1/4 2-1/2
96
17
490, 491
390
A 3.4B 4.0
10
7-1/2
5
5
1-1/4
3
102
18
490, 491
415
A 3.6B 4.4
10
7-1/2 7-1/2 7-1/2 1-1/4
3
107
19
490, 491
435
A 3.8B 4.6
10
7-1/2 7-1/2 7-1/2 1-1/4
3
110
20
490, 491
445B 4.0B 4.8
10
7-1/2 7-1/2 7-1/2 1-1/4
3
115
21
490, 491
470B 4.2B 5.0
10
7-1/2 7-1/2 7-1/2 1-1/4
3
Unloading
120
22
490, 491
490B 4.4B 5.2
15
10
7-1/2 7-1/2 1-1/4
3
two or
126
23
490, 491
515B 4.6B 5.6
15
10
7-1/2 7-1/2 1-1/4
3
more tank
131
24
490, 491
535B 4.8B 5.8
15
10
10
7-1/2 1-1/4
3
cars at
138
25
490, 491
560B 5.0B 6.0
15
10
10
7-1/2 1-1/4
3
one time
142
26
490, 491
580B 5.2B 6.2
15
10
10
7-1/2 1-1/4
3
or large
148
27
490, 491
605B 5.4B 6.4
15
10
10
10
1-1/4
3
transport
153
28
490, 491
625B 5.6B 6.6
15
10
10
10
1-1/2
3
with excess
160
29
490, 491
650B 5.8B 7.0
15
15
10
10
1-1/2
3
flow valves
165
30
490, 491
670B 6.0
15
15
15
10
1-1/2
3
of adequate
165
30
690, 691
400B 4.4B 5.2
15
15
10
10
1-1/2
3
capacity
170
31
490, 491
695B 6.2B 7.4
15
15
15
10
1-1/2
3
173
31
690, 691
420B 4.6B 5.6
15
15
10
10
1-1/2
3
181
32
490, 491
740B 6.6B 8.0
15
15
15
15
1-1/2
3
180
32
690, 691
440B 4.8B 5.8
15
15
10
10
1-1/2
3
188
34
690, 691
455B 5.0B 6.0
20
15
10
10
1-1/2
3
195
35
690, 691
475B 5.2B 6.2
20
15
10
10
1-1/2
3
203
36
690, 691
495B 5.4B 6.4
20
15
15
10
1-1/2
3
211
38
690, 691
510B 5.6B 6.8
20
15
15
10
1-1/2
4
218
39
690, 691
530B 5.8B 7.0
20
15
15
15
1-1/2
4
226
41
690, 691
550B 6.0
A 7.0
20
15
15
15
1-1/2
4
233
42
690, 691
565B 6.2B 7.4
20
15
15
15
2
4
Unloading
240
43
690, 691
585B 6.4
A 7.4
20
20
15
15
2
4
large
248
45
690, 691
605B 6.6B 8.0
20
20
15
15
2
4
tank cars,
255
45
690, 691
620B 6.8
25
20
15
15
2
4
multiple
263
47
690, 691
640B 7.0
A 8.2
25
20
15
15
2
4
vessels,
278
48
690, 691
675B 7.4B 8.6
25
20
15
15
2
4
barges or
301
54
690, 691
730B 8.0B 9.4
25
20
20
15
2
4
terminals
323
58
690, 691
785B 8.6
30
25
20
20
2
4
338
60
690, 691
820
TB 9.0
A 10.6
30
25
20
20
2
4
459
82D891
580
5V 7.1
5V 8.5
40
30
30
30
3
6
633
113D891
800
5V 9.75
5V 11.8
40
40
30
3
6
1The
capacities shown are based on 70°F, but will vary depending upon piping, fittings used, product being transferred and temperature. The
factory can supply a detailed computer analysis if required.
2Driver sheaves: 91 (2 belts); 290, 291, 490, 491 (3 belts); 690, 691 (4 belts).
3The piping sizes shown are considered minimum. If the length exceeds 100 ft., use the next larger size.
NOTE: Please consult factory for compressors with higher flows.
39
Appendix E—Outline Dimensions
Models 91–691 and F91–F691 Bare with Flywheel
M
M1
L
L1
M
M1
L
L1
S***
Model
91, F91
291, F291
491, F491
691, F691
AB
1-13/16 2-3/8
(4.6)
(6.0)
3-3/8
4-1/8
(8.6)
(10.5)
4-1/8
5
(10.5)
(12.7)
4-3/4
5
(12.1)
(14.0)
Outline Dimensions—Inches (Centimeters)
CDEFGH
3-11/16 13/32
5/8
6-1/4
3-7/8
25-5/16
(9.4)
(1.03)
(1.59)
(15.9)
(9.8)
(64.3)
3-11/16 13/32
5/8
9-13/16
12
25-13/16
(9.4)
(1.11)
(1.59)
(24.9)
(30.4)
(65.2)
4-11/16
1/2
11/16 10-11/16
13
29-11/16
(11.9)
(1.27)
(1.75)
(27.2)
(33.1)
(75.4)
5-3/8
9/16
1
14
14-3/8
39-1/8
(13.7)
(1.5)
(2.5)
(35.6)
(35.6)
(99.4)
J
5
(12.7)
5-3/8
(13.7)
5-7/8
(14.9)
8-1/4
(21.0)
K
22-11/16
(57.6)
23-3/8
(59.4)
26-3/16
(66.5)
35-1/8
(89.2)
“ PD” Flywheel Pitch Diameter
Model
L*
L1**M*M1**P
QRS***T A-beltGrooveB-beltGroove
91, F91
3/4 3/4-300 lb 2-3/8 4-1/4
3
14 1-1/8 1-1/4 1/4
13.2
2
13.6
2
NPT
ANSI
(6.0) (10.8) (7.6) (35.6) (2.8) (3.2) (0.63) (33.5)
(34.5)
291, F291 3/4 3/4-300 lb 2-11/16 4-1/4
3
16 1-1/4 1-1/4 1/4
15.2
3
15.6
3
NPT
ANSI
(6.8) (10.8) (7.6) (40.6) (3.2) (3.2) (0.63) (38.6)
(39.6)
141
13.21
2
13.61
2
(35.6)
(33.5)
(34.5)
491, F491 1-1/4 1-1/4-300 lb 3-7/8 5-5/8
3
16 1-3/8 1-1/4 5/16 15.2
3
15.6
3
NPT
ANSI
(9.9) (14.3) (7.6) (40.6) (3.5) (3.2) (0.79) (38.6)
(39.6)
141
13.21
2
13.61
2
(35.6)
(33.5)
(34.5)
691, F691 22
2-300 lb 6-3/8 6-15/16 3-13/16 19-1/2 2-1/8 —
1/2
—
— 19-1/8
4
NPT
ANSI
(16.1) (17.6) (9.7) (49.5) (5.4)
(1.27)
(48.5)
1Optional
2Optional
flywheel
flanges: 1-1/4", 1-1/2" NPT, 1-1/4", 1-1/2" or 2" Weld
* 91, 291, 491, 691 only
** F91, F291, F491, F691 only
*** With extended crankshaft option only
40
Appendix E—Outline Dimensions
Models 91–691 with 103 Mounting
Model
91-103
291-103
491-103
691-103
Outline
AB
12
15
(30.4)
(38.1)
12
15
(30.5)
(38.1)
15
18
(38.1)
(45.7)
17
20
(43.2)
(50.8)
ModelH
28-11/16
91-103
(72.9)
28-22/32
291-103
(72.9)
33-11/16
491-103
(85.6)
43-1/8
691-103
(109.5)
Dimensions—Inches (Centimeters)
CDEFG
27-1/2
30
1-1/4
3
5-1/4
(69.8)
(76.2)
(3.1)
(7.6)
(13.34)
31-1/2
34
1-1/4
3
5
(80.0)
(86.4)
(3.2)
(7.6)
(12.7)
37-1/2
40
1-1/4
4
5-1/4
(95.3)
(101.6)
(3.2)
(10.2)
(13.3)
39-1/2
42
1-1/4
4
5.5
(100.3)
(106.7)
(3.2)
(10.2)
(14.0)
Outline Dimensions—Inches (Centimeters)
J
K
LMN
26-3/8
4-15/16
7.75
2-11/16
3/4
(67.0)
(12.5)
(19.7)
(6.8)
NPT
26-6/16
4-15/16
7-3/4
2-11/16
3/4
(67.0)
(12.5)
(19.7)
(6.8)
NPT
30-3/16
5-3/4
10
3-15/16
3/4
(76.7)
(14.6)
(25.4)
(10.0)
NPT
39-1/8
8.25
9.25
6-3/8
2
(99.4)
(21.0)
(23.5)
(16.2)
NPT
41
Appendix E—Outline Dimensions
Models 91 with -107 or -107A Mounting (model -107A shown below)
Inches (Centimeters)
* Dimensions apply to -107A mounting only
42
Appendix E—Outline Dimensions
Model 291 with -107 or -107A Mounting (model -107A shown below)
CORKEN
AUTOMATIC LIQUID TRAP
IN
CORKEN
CORKEN
CORKEN
Inches (Centimeters)
* Dimensions apply to -107A mounting only
43
Appendix E—Outline Dimensions
Model 491 with -107 or -107A Mounting (model -107A shown below)
AUTOMATIC LIQUID TRAP
IN
CORKEN
CORKEN
CORKEN
Inches (Centimeters)
* Dimensions apply to -107A mounting only
44
Appendix E—Outline Dimensions
Model 691 with -107 or -107A Mounting (model -107A shown below)
1-1/4 in. NPT
four way
control valve
S
P
R
O
K
M
N
Q
L
D
C
Inches (Centimeters)
Model
691-107, -107A
Model
691-107, -107A
Outline Dimensions—Inches (Centimeters)
AB
CDEFGH
8-1/4
17
49-1/2
19-3/4
1-1/2
20
52
43-1/4
(21.0)
(43.1)
(126)
(50.1)
(3.8)
(50.8)
(132)
(110)
K
4
(10.1)
Outline Dimensions—Inches (Centimeters)
LMN
OP
1-1/4
1/4
2-11/16*
7-3/4
29
(3.2)
(0.63)
(6.8)*
(19.6)
(73.0)
* Dimensions apply to -107A mounting only
45
J
5-1/2
(14)
QRS
10-1/2
24-1/4
6
(26.6)
(61.0)
(15.0)
Appendix E—Outline Dimensions
Model 91–691 with -109 or -109A Mounting (model -109A shown below)
Model
91-109, -109A
291-109, -109A
491-109, -109A
691-109, -109A
Model
91-109, -109A
291-109, -109A
491-109, -109A
691-109, -109A
A
1-3/16
(3.7)
5
(12.7)
5-3/4
(14.6)
8-1/4
(30.0)
Outline Dimensions—Inches (Centimeters)
A1B
CDD1EFGH
5-1/4
12
13-5/16 31-1/2
—
1-1/2
15
34 31-3/16
(13.4) (30.5) (33.8) (80.0)
(3.8)
(38.1) (86.4) (79.2)
—
12
15-3/4 39-1/2
—
1-1/2
15
42
30-7/8
—
(30.5) (40.0) (100.3)
—
(3.8)
(38.1) (106.7) (78.4)
—
15
18
45-1/2
—
1-1/2
18
48
33-3/4
—
(38.1)
(45.7) (115.6)
—
(3.8)
(45.7) (121.9) (85.7)
—
17
19-1/4 49-1/2 19-3/4 1-1/2
20
52 43-3/16
—
(43.2) (48.8) (125.7) (50.1) (3.8)
(50.8) (132) (109.6)
K
28-3/16
(71.6)
28-1/2
(72.4)
30-1/8
(76.5)
39-1/8
(99.3)
J
5-1/4
(13.3)
5-1/4
(13.3)
5-1/4
(13.3)
5-1/2
(14.0)
Outline Dimensions—Inches (Centimeters)
LMNPRSTU
3/4
2-5/16
3
1-1/4
3-5/8
9-1/2
2-3/4
6-3/4
NPT
(5.9)
(7.6)
(3.2)
(9.2)
(24.1)
(6.9)
(17.1)
3/4
2-11/16
3
1-1/4
3-7/8
9-1/2
4-1/2
6-3/4
NPT
(6.8)
(7.6)
(3.2)
(9.9)
(24.1)
(11.4)
(17.1)
1-1/4
4
4
1-1/4
4
10-1/2
5.25
7-3/4
NPT
(10.2)
(10.2)
(3.2)
(10.2)
(26.7)
(13.3)
(19.7)
1-1/2
6-3/8
4
1-1/4
4-1/8
21-7/16
7-1/4
7-3/4
NPT
(16.1)
(10.2)
(3.2)
(10.4)
(54.4)
(18.4)
(19.7)
46
Appendix E—Outline Dimensions
Model D891 Bare with Flywheel
Suction
valve unloaders
(optional)
5-1/2"
(13.9)
5-1/2"
(13.9)
Inlet
2" Weld or
NPT flange
Outlet
2" Weld or
NPT flange
1/4" NPT drain
43-1/4"
(109.9)
35-5/8"
(90.4)
Crankcase heater
(optional)
24-15/32"
(62.1)
21.2"
(53.8)
8-1/4"
(20.9)
2-1/8"
(5.3)
4-3/4"
(12.0)
5-5/8"
(14.3)
5-1/2"
(13.9)
1"
(2.5)
9-16" (1.4)
Hole Diameter
13-1/4"
(33.6)
5-3/8"
(13.6)
5-3/8"
(13.6)
10-1/4"
(26.0)
Inches (Centimeters)
47
Appendix E—Outline Dimensions
Model D891 with 103 Mounting
Inlet
2" Weld or
NPT flange
Outlet
2" Weld or
NPT flange
Inches (Centimeters)
48
Appendix E—Outline Dimensions
Model D891 with 107B Mounting
Inches (Centimeters)
49
Appendix E—Outline Dimensions
Model D891 with 109B Mounting
Inches (Centimeters)
50
Appendix F—Troubleshooting
In most cases, problems with your Corken gas compressor
can be solved quite simply. This chart lists some of the
more frequent problems that occur with reciprocating
compressors along with a list of possible causes. If you
are having a problem which is not listed, or if you cannot
find the source of the problem, consult the factory.
Problem
Possible Cause
Low capacity
1, 2, 3, 4, 16
Overheating
1, 2, 3, 5, 6, 11, 15
Knocks, rattles and noise
1, 7, 9, 10, 11, 14
Oil in cylinder
8, 14
Abnormal piston-ring wear
1, 3, 5, 6, 11, 14, 15
Product leaking through crankcase breather
8, 14
Product leakage
4, 8, 14, 16
Oil leakage around compressor base
17, 18
No oil pressure
19, 20
Excessive vibration
1, 7, 9, 10, 11, 12, 13, 28
Motor overheating or starter tripping out
21, 22, 23, 24, 25, 26, 27, 28
Ref.
Possible Causes
What To Do
1.
Valves broken, stuck or leaking
Inspect and clean or repair
2.
Piston ring worn
Inspect and replace as necessary
3.
Inlet strainer clogged
Clean or replace screen as necessary
4.
Leaks in piping
Inspect and repair
5.
Inlet or ambient temperature too high
Consult factory
6.
Compression ratio too high
Check application and consult factory
7.
Loose flywheel or belt
Tighten
8.
Worn piston-rod packing
Replace
9.
Worn wrist pin or wrist-pin bushing
Replace
10.
Worn connecting-rod bearing
Replace
11.
Unbalanced load
Inspect valve or consult factory
12.
Inadequate compressor base
Strengthen, replace or grout
13.
Improper foundation or mounting
Tighten mounting or rebuild foundation
14.
Loose valve, piston or packing
Tighten or replace as necessary
15.
Dirty cooling fins
Clean weekly
16.
4-way control valve not lubricated
Inspect and lubricate
17.
Leaking gas blowing oil from crankcase
Tighten packing
18.
Bad oil seal
Replace
19.
No oil in crankcase
Add oil
20.
Oil-pump malfunction
See oil-pressure adjustment
21.
Low voltage
Check line voltage with motor nameplate. Consult power company
22.
Motor wired wrong
Check wiring diagram
23.
Wire size too small for length or run
Replace with correct size
24.
Wrong power characteristics
Voltage, phase and frequency must coincide with motor nameplate.
Consult with power company.
25.
Wrong size of heaters in starter
Check and replace according to manufacturer’s instructions
26.
Compressor overloading
Reduce speed
27.
Motor shorted out
See driver installation
28.
Bad motor bearing
Lubricate according to manufacturer’s instructions
51
Appendix G—91 and F91 Head and Valve Assembly Details
91 Head Assembly
Valve Holddown Assemblies
Suction
Spec 3
3
Suction
Spec 4
5
Discharge
All Specs
5
5
1
6
6
7
7
6
7
4
F91 Head Assembly
11
8
3
2
11
9
11
10
Valve Assemblies
Suction Valve
Spec 3
12
13
4
14
15
Suction Valve
Spec 4
Discharge Valve
All Specs
24
52
16
20
17
21
18
22
19
23
25
26
27
Appendix G—91 and F91 Head and Valve Assembly Details
Head and Valve Bill of Materials
Ref
No.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
Part No.
Description
2374
2374-Xa
2374-X1
4302
7001-037 NC100A
2-235_c
2714-1
2-031_c
2715
3483-1X
3483-1X1b
3483-1X2b
3483-X
3483-X1b
3483-X2b
3485-X
3485-X1b
3485-X2b
2717
2717-1b
2717-2b
5000-77
3977
1411
1410
3483-1
3972
4009
3484
3483
3972
4009
3484
3486
4008
3973
3485
Head model 91
Head assy. for model 91 (spec 3)
Head assy. for model 91 (spec 4)
Head model F91 (ANSI flange)
Bolt, 3/8-16 x 1" Gr.5 hex head
O-ring
Valve cap
O-ring
Holddown screw
Suction valve assy. (spec 3)
Same as above but with copper gaskets
Same as above but with iron-lead gaskets
Suction valve assy. (spec 4)
Same as above but with copper gaskets
Same as above but with iron-lead gaskets
Discharge valve assy. (all specs)
Same as above but with copper gaskets
Same as above but with iron-lead gaskets
Valve gasket (aluminum)
Valve gasket (copper)
Valve gasket (iron-lead)
Retainer ring (spec 3)
Suction valve relief housing (spec 3)
Spring (spec 3)
Ball (spec 3)
Suction valve seat (spec 3)
Suction valve plate (spec 3)
Suction spring (spec 3)
Suction valve bumper (spec 3)
Suction valve seat (spec 4)
Suction valve plate (spec 4)
Suction spring (spec 4)
Suction valve bumper (spec 4)
Discharge valve bumper
Discharge spring
Discharge valve plate
Discharge valve seat
O-ring Code
A
Buna-N
B
Neoprene®d
a Not
shown.
bOptional
c_
denotes O-ring code. See O-ring chart to the left for details.
trademark of the DuPont company.
dRegistered
CAUTION: Always Relieve Pressure In The Unit Before Attempting Any Repairs.
53
Appendix G—91 and F91 Piston Assembly Details
1
2
3
Piston Assembly Number 1983-X Bill of Materials
Piston Diameter 3" (7.62 cm)
4
Ref
No.
5
1.
6
7
8
9
Part No.
Description
Qty
7002-010OC100A
Screw, socket head
4
7207-010A
Lock washer
4
2.
1983
Head, iron
1
3.
1775
Ring expander
3
4.
1772
Piston ring
3
5.
1482
Locknut
1
6.
1483
Lock pin
1
7.
1984
Piston platform
1
1528
Shim washer, thick
1528-1
Shim washer, thin
1527
Thrust washer
8.
9.
As
Req.
1
Piston Clearance (Cold)a
Model
91
Piston Rod
a The
Minimum
Maximum
0.020" (0.51 mm)
0.044" (1.12 mm)
distance from the bottom of the head to the top of the piston.
CAUTION: Always Relieve Pressure In The Unit Before Attempting Any Repairs.
54
Appendix G—91 and F91 Packing Assembly Details
Packing Assembly Bill of Materials
Ref
No.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
1
2
3
7
4
5
8
6
Part No.
Description
2242
2-235_ a
5000-137
1012
1628
1714
1453-1
1454b
1452-1
2240
1387
2526
1452-1X1
Cylinder
O-ring for cylinder
Retainer ring
Washer
Packing spring
Packing box washer
Male packing ring
Packing ring
Female packing ring
Crosshead guides
Adjusting screw
Crankcase gasket
Packing set
Assembly
Number
1132-X2
13
1452-2X1d
7,8,9
Qty
1
1
1
1
1
1
1
8
1
1
1
1
1
Assembly Name
Crosshead - piston-rod assembly
Packing set (alloy 50) with 1452-1,
1453-1, 1454-2 (8), 1626, 1714
O-ring Code
9
A
Buna-N
B
Neoprene®c
a _
denotes O-ring code. See O-ring chart above for details.
quantity of 1454 packing rings required will vary due to
tolerances. Use cone 4005 for installation of packing.
cRegistered trademark of the DuPont company.
dOptional equipment
CAUTION: Always Relieve Pressure In The Unit Before Attempting
Any Repairs.
10
bThe
11
Piston Rod
12
55
Appendix G—91 and F91 Connecting Rod Assembly Details
1
2
3
2
Connecting Rod Assembly Bill of Materials
Ref
No.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
4
5
5
Part No.
Description
1132-X2
1498
2505
1846-Xa,b
1599b
1889-1X
1889-1b
1367b
2011b
1600b,c
Crosshead assembly
Retainer ring
Wrist pin
Wrist pin bushing
Bolt
Connecting rod assembly
Connecting rod
Connecting rod bearing
Dipper
Nut
a Must
be rebored after replacing (0.8754/0.8751 dia.)
with connecting rod assembly
cTorque connecting rod nut to 28 ft. lbs.
Never attempt to separate the piston rod and crosshead. When repair
becomes necessary, the entire crosshead assembly must be replaced.
bIncluded
6, 7
8
Note
alignment
marks
CAUTION: Always Relieve Pressure In The Unit Before Attempting
Any Repairs.
9
10
56
Appendix G—91 and F91 Flywheel Assembly Details
Back Side
Flywheel Assembly Bill of Materials
Front Side
57
Assembly Number
Assembly Name
3271-X2
Flywheel assembly
(flywheel, hub, and
three bolts)
3271
Flywheel: 14" O.D.,
2 groove
H SF-1.125
Hub with three
bolts and
lockwashers
Appendix G—91 and F91 Crankcase Assembly Details
23
10
3
22
17
13
18
19
21
20
12
13
16
15
3
14
56
1
2
3
7
4
11
10
8
9
58
Appendix G—91 and F91 Crankcase Assembly Details
Crankcase Assembly Bill of Materials
Ref No. Part No.
1.
3259
2.
1483
3.
7001-037NC075A
4.
3260
5.
2796
6.
1279-X
7.
1279-X
8.
2725
9.
1807
10.
2718
11.
2723
12.
2476
13.
2719
14.
2289
15.
2290
16.
2554a
17.
1661
18.
2729
19.
2728
20.
2-112_ c
21.
1368-X1
2721
22.
2721-1
2721-2
23.
2720
Description
Oil seal
Roll pin - 1/8 x 1"
Hex head 3/8-16 x 3/4", Gr 5
Bearing carrier
Breather ball
O-ring (part of bearing cap assembly)
Breather cap assembly (with O-ring - ref. no. 6)
Bearing carrier gasket
Roll pin - 1/8 x 5/8"
Bearing cup
Oil circulating ring
Crankshaft
Bearing cone
Flywheel key
Oil ring retainer washer
Crankcase
Pipe plug - 3/8 NPT sq. or hex
Inspection plate gasket
Crankcase inspection plate
O-ring
Oil bayonet assembly (with O-ring)
Bearing adjustment shim (0.005)
Bearing adjustment shim (0.007)
Bearing adjustment shim (0.020)
Bearing cap
Other Assemblies
Assembly
Number
2476-X
2476-SXb
3260-X
3271-X2b
Assembly Name
Crankshaft assembly with 2476, 2290 and 2719
Extended crankshaft assembly with 2719 (2) and 2290, (optional)
Bearing carrier assembly with 3260, 2718, 3259, 1279-X, 2-111,
1483, 2796 and 1807
Flywheel assembly 14" - 2 groove with H SF-1.125 and 3271
O-ring Code
A
Buna-N
B
Neoprene®c
a Crankcase
bOptional
c_
capacity: 0.9 quarts (0.8 liters)
denotes O-ring code. See O-ring chart above for details.
trademark of the DuPont company.
dRegistered
CAUTION: Always Relieve Pressure In The Unit Before Attempting Any Repairs.
59
2
Appendix H—291 and F291 Head and Valve Assembly Details
291 Head Assembly
Valve Holddown Assemblies
Suction
Spec 3
4
Suction
Spec 4
7
7
1
Discharge
All Specs
3
7
8
8
9
9
8
9
6
5
F291 Head Assembly
3
13
10
13
11
13
12
4
2
Valve Assemblies Details
Suction Valve
Spec 3
14
15
16
6
17
Suction Valve
Spec 4
5
Discharge Valve
All Specs
26
60
18
22
19
23
20
24
21
25
27
28
29
Appendix H—291 and F291 Head and Valve Assembly Details
Head and Valve Bill of Materials
Ref
No.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.
Part No.
Description
2912
2912-X1
2912-X2
4300
7001-037 NC100A
2731
2732
2-235_b
2-113_b
2714-1
2-031_b
2715
3483-1X
3483-1X1a
3483-1X2a
3483-X
3483-X1a
3483-X2a
3485-X
3485-X1a
3485-X2a
2717
2717-1a
2717-2a
5000-77
3977
1411
1410
3483-1
3972
4009
3484
3483
3972
4009
3484
3486
4008
3973
3485
Head model 291
Head assy. for model 291 (spec 3)
Head assy. for model 291 (spec 4)
Head model F291 (ANSI flange)
Bolt, 3/8-16 x 1" Gr.5 hex head
Center headbolt
Gasket for center headbolt
O-ring
O-ring
Valve cap
O-ring
Holddown screw
Suction valve assy. (spec 3)
Same as above but with copper gaskets
Same as above but with iron-lead gaskets
Suction valve assy. (spec 4)
Same as above but with copper gaskets
Same as above but with iron-lead gaskets
Discharge valve assy. (all specs)
Same as above but with copper gaskets
Same as above but with iron-lead gaskets
Valve gasket (aluminum)
Valve gasket (copper)
Valve gasket (iron-lead)
Retainer ring (spec 3)
Suction valve relief housing
Spring (spec 3)
Ball (spec 3)
Suction valve seat (spec 3)
Suction valve plate (spec 3)
Suction spring (spec 3)
Suction valve bumper (spec 3)
Suction valve seat (spec 4)
Suction valve plate (spec 4)
Suction spring (spec 4)
Suction valve bumper (spec 4)
Discharge valve bumper
Discharge spring
Discharge valve plate
Discharge valve seat
O-ring Code
A
Buna-N
B
Neoprene®c
a Optional
b_
denotes O-ring code. See O-ring chart to the left for details.
trademark of the DuPont company.
cRegistered
CAUTION: Always Relieve Pressure In The Unit Before Attempting Any Repairs.
61
Appendix H—291 and F291 Piston Assembly Details
1
2
3
Piston Assembly Number 1983-X Bill of Materials
Piston Diameter 3" (7.62 cm)
Ref
No.
4
1.
5
6
2.
3.
4.
5.
6.
7.
7
8
9
8.
9.
Part No.
Description
Qty
7002-010OC100A
7207-010A
1983
1775
1772
1482
1483
1984
1528
1528-1
1527
Screw, socket head
Lock washer
Head, iron
Ring expander
Piston ring
Locknut
Lock pin
Piston platform
Shim washer, thick
Shim washer, thin
Thrust washer
4
4
1
3
3
1
1
1
As
Req.
1
Piston Clearance (Cold)a
Model
291
Piston Rod
a The
Minimum
0.020" (0.51 mm)
Maximum
0.044" (1.12 mm)
distance from the bottom of the head to the top of the piston.
CAUTION: Always Relieve Pressure In The Unit Before Attempting Any Repairs.
62
Appendix H—291 and F291 Packing Assembly Details
Packing Assembly Bill of Materials
1
2
4
3
5
6
7
16
7,8,9
10
8
11
Part No.
Description
2913-1
2-235_a
5000-137
1012
1628
1714
1453-1
1454b
1452-1
10.
43­­­98
11.
12.
4394
1387
13.
2-135_a
14.
15.
16.
4393
2702
1452-1X1
17.
1651
18.
Cylinder
O-ring for cylinder
Retainer ring
Washer
Packing spring
Packing box washer
Male packing ring
Packing
Female packing ring
Cartridge holddown
screw
Packing box cartridge
Adjusting screw
O-ring (packing
cartridge)
Crosshead guide
Crankcase gasket
Packing set
Inspection plate
gasket
Inspection plate
1650
70031/4-20x3/8"
025NC037E
19.
not
1192
shown
9
Locking device
Qty
1
2
2
2
2
2
2
6
2
2
2
2
2
1
1
2
1
1
4
4
Other Assemblies
12
13
Ref
No.
1.
2.
3.
4.
5.
6.
7.
8.
9.
14
Assembly
Number
1132-X2
1452-1X1
Assembly Name
Crosshead assembly
Packing set with 1452-1,
1453-1, 1454 (8), 1628, 1714
Qty
2
2
O-ring Code
Piston Rod
A
Buna-N
B
Neoprene®c
a _
19
18
15
17
63
denotes O-ring code. See O-ring
chart above for details.
bThe quantity of 1454 packing rings
required will vary due to tolerances.
Use Cone 4005 for installation of
packing.
cRegistered trademark of the
DuPont company.
CAUTION: Always Relieve Pressure
In The Unit Before Attempting Any
Repairs.
Appendix H—291 and F291 Connecting Rod Assembly Details
1
2
3
2
Connecting Rod Assembly Bill of Materials
Ref
No.
1.
2.
3.
4.
5.
6.
7.
8.
9.
4
5
5
Part No.
Description
1132-X2a
1498
2505
1846-Xa,b
1599b
1889-X
1889b
1367b
1600b,c
Crosshead assembly
Retainer ring
Wrist pin
Wrist pin bushing
Bolt
Connecting rod assembly
Connecting rod
Connecting rod bearing
Nut
a Must
be rebored after replacing (0.8754/0.8751 dia.)
with connecting rod assembly
cTorque connecting rod nut to 28 ft. lbs.
Never attempt to separate the piston rod and crosshead. When repair
becomes necessary, the entire crosshead assembly must be replaced.
bIncluded
6, 7
CAUTION: Always Relieve Pressure In The Unit Before Attempting
Any Repairs.
8
Note
alignment
marks
9
64
Appendix H—291 and F291 Flywheel Assembly Details
Back Side
Flywheel Assembly Bill of Materials
Front Side
65
Assembly Number
Assembly Name
2549-X1
Flywheel assembly
(flywheel, hub, and
three bolts)
2549
Flywheel: 16" O.D.,
3 groove
H SF-1.250
Hub with three
bolts and
lockwashers
Appendix H—291 and F291 Crankcase Assembly Details
1
3
2
4
5
11
10
12
13
14
6
15
16
9
7
17 (Assembly)
2
18
19
8
18
26
28
27
25 24
23
20
22
21
37
44
35
21
38
39 (assembly)
40
34
41
46 9
47
36
45
31
30
32
48
49
50
44
42
33
51
27
29
40
43 (assembly)
66
52
Appendix H—291 and F291 Crankcase Assembly Details
Crankcase Assembly Bill of Materials
Ref
No.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.
30.
31.
32.
33.
34.
35.
36.
37.
38.
39.
40.
41.
42.
43.
44.
45.
46.
47.
48.
49.
50.
51.
52.
Part No.
Other Assemblies
Assembly
Number
1279-X
Description
1278
7001-037NC075A
2957
1273
1273-1
1273-2
1500
1368-X
2713
2958
2-112_c
a,b
2955
1279
c
2-111_
2796
1483
1671
1501
Oil seal
Bolt, 3/8-16 x 3/4, hex head
Bearing cover
Bearing adjustment shim (0.005")
Bearing adjustment shim (0.007")
Bearing adjustment shim (0.020")
Bearing cup
Oil bayonet
Crankcase inspection plate gasket
Crankcase inspection plate
O-ring
Crankcase
Breather cap
O-ring (breather cap)
Breather ball
Lock pin - 1/8 x 1"
Flywheel key
Bearing cone
Crankshaft assembly with 1284 (2), 1286,
1341-X1
1341, 1501, 2590, 2719
1284
Crankshaft orifice (2)
2719
Bearing cone
1286
Pump shaft drive pin
2590
Pipe plug - 1/8 NPT, flush seal
1280
Filter screen screw
1281
Filter screen screw gasket
2-116_c
O-ring (filter screen)
1276
Filter screen washer
1275
Oil filter screen
3289
Pipe plug - 1/4 NPT, flush seal
1661
Pipe plug - 3/8 NPT
1290
Relief valve adjusting screw
1291
Adjusting screw locknut
c
O-ring (relieve valve adjustment screw)
2-011_
1292
Relief valve spring
1293
Relief valve ball
2718
Bearing cup
Air release valve assembly with 2961,
2961-X
2962, 2963
1285
Bearing carrier gasket
2956
Bearing carrier
O-ring (closure body) (2 required) (Spec
2-218_c
3, 4, 8, 9 only)
Closure cap assembly including 2-218A(2)
1515-X
(Spec 3, 4, 8, 9 only)
7001-025NC050A Bolt, 1/4-20 x 1/2, hex head
1302
Oil pressure gauge
2-228_c
O-ring (pump cover)
4222-X
Oil filter assembly
1629
Pipe plug - 1/16 NPT, flush seal
7001-037NC100A Bolt, 3/8-16 x 1, hex head
2805
Pump shaft bushing
2850
Pump shaft adapter
2852
Oil pump spring
2851
Spring guide
Oil pump assembly (individual pump
2849-X
parts not available)
2798
Pump cover pin with 2848-X
2848-X
Pump cover (includes pin)
4225
Filter
1341-X1
1342-X1a
1368-X1
1515-X
2956-X
2957-X
2961-X
3271-X1a
Assembly Name
Breather cap assembly with 1279, 2-111A
Crankshaft assembly with 1284 (2), 1286, 1341, 1501,
2590, 2719
Extended crankshaft assembly with 1284 (2), 1286,
1342, 1501, 2590, 2719
Oil bayonet assembly with 1368-X, 2-112A
Closure cap assembly including 2-218A (2) (Spec 3, 4,
8, 9 only)
Bearing carrier assembly with 1285, 1290, 1291,
1292, 1293, 1515-X, 2718, 2805, 2806 (2), 2848-X,
2849-X, 2850, 2851, 2852, 2956, 2961-X, 2011-A,
2-112A, 2-228A.
Bearing cover assembly with 2957 and 1278
Air release valve assembly with 2961, 2962, 2963
Flywheel assembly, 14" O.D. 2 groove with 3218 and
3271 (not part of crankcase assembly) (not shown)
O-ring Code
A
Buna-N
B
Neoprene®d
a Optional
equipment
capacity: 1.5 quarts (1.4 liters)
c_ denotes O-ring code. See O-ring chart above for details.
dRegistered trademark of the DuPont company.
CAUTION: Always Relieve Pressure In The Unit Before Attempting
Any Repairs.
bCrankcase
67
Appendix I—490, 491, and F491 Head and Valve Assembly Details
490 and 491 Head Assembly
6
7
7
8
8
Valve Holddown Assemblies
Suction
Spec 3
10
1
Suction
Suction
Spec 4
Discharge
All Specs
11
10
10
12
11
11
12
12
33
33
13
13
14
14
15
15
16
16
103
101
102
17
17
17
33
13
14
Discharge
9
15
4 (prior to FZ44188)
16
491 Head Assembly
7
7
6
2
Suction
Valve Assemblies
Discharge
9
Suction Valve
Spec 3
103
11
27
5
28
F491 Head Assembly
7
29
7
Suction Valve
Spec 4
101
11
Discharge Valve
All Specs
102
11
18
18
19
25
20
23
30
6
3
Suction
20
21
22
Discharge
22
23
21
22
31
23
20
32
24
26
17
17
17
21
9
5
68
Appendix I—490, 491, and F491 Head and Valve Assembly Details
Compressor Head and Valve Bill of Materials
Ref
No.
Part No.
Description
Head—ductile iron (491)
2.
2914d
3712e
3.
4297
Head—ANSI flanged (F491)
4297-1
1481c
Head flanged - Din spec. only (F492)
4.
5.
2-253_b,c,e
O-ring (491)
6.
3442
1479c
Pipe plug—1/4" NPT
1480-1c
1480c
Center head bolt gasket (copper)
Ref
No.
Valve Assembly No.
Assembly Name
2438-X
Suction valve assembly (see ref. no.
7, 17, 18, 19, 20, 21(2), 22, 23, 24)
2438-X1a
Same as 2438-X but with copper
gaskets
2438-X2a
Same as 2438-X but with iron-lead
gaskets
2439-X
Discharge valve assembly (see ref.
no. 7, 17, 18, 20, 21(2), 22, 26, 25)
2439-X1a
Same as 2439-X but with copper
gaskets
Center head bolt gasket (steel)
2439-X2a
7005-043NC125Ac
Bolt, 7/16-14 x 1-1/4" ferry head (490 &
491 prior to serial # FZ44188)
Same as 2439-X but with iron-lead
gaskets
2532-1X
7005-043NC150Ac
Bolt, 7/16-14 x 1-1/2" ferry head (491
serial # FZ44188 and later)
Suction valve assembly (spec. 3)
with aluminum
10.
1477
Valve screw nut
11.
1478
Gasket (steel)
1478-1a
Gasket (copper)
1478-2
Gasket (iron)
12.
1476
Valve holddown screw
13.
1475
14.
1.
7.
8.
9.
Head—ductile iron (491)
101.
Head gasket (490 and 491)
Center head bolt
102.
103.
2532-1X1a
2532-1X2a
Same as 2532-1X but with copper
Same as 2532-1X but with iron-lead
Head Assembly No.
2914-X2d
Model
491
4
491
3
Valve cover plate
2914-X4d
3712-X1e
491
3
O-ring for cover plate
3712-X2e
491
4
15.
2-143_b
1409f
Valve spacer
4297-X1
F491
3
16.
2448
Cage
4297-X2
F491
4
1418
Valve gasket (aluminum)
4297-1X1
F492
3
1418-1a
1418-2a
Valve gasket (copper)
4297-1X2
F492
4
17.
Valve Specification
Valve gasket (iron)
18.
2446
Bolt
O-ring Code
19.
2438
Suction valve seat
20.
2442
Valve plate
A
Buna-N
21.
2445f
Spacer (two per valve)
B
Neoprene®g
22.
3355
Washer
23.
1407
Valve spring
24.
2440
Suction valve bumper
25.
2441
Discharge valve bumper
26.
2439
Discharge valve seat
27.
2533-1
Adjusting screw
28.
1411
Relief ball spring
29.
1410
Relief ball
30.
2532-1
Suction valve seat
31.
2534-1
Suction valve post
32.
2447
Suction valve bumper
33.
7001-043NC125A
Bolt (7/16-14 x 1-1/4” hex head)
a Optional
equipment
denotes O-ring code. See O-ring chart above for details.
cNot included in Head Assembly.
dPrior to S/N FZ44188.
eS/N FZ44188 and later.
f Place spacers back to back as shown.
gRegistered trademark of the DuPont company.
b_
69
CAUTION: Always Relieve Pressure In The Unit Before
Attempting Any Repairs.
Appendix I—490, 491, and F491 Piston Assembly Details
1
2
3
Piston Assembly Number 1985-X Bill of Materials
Piston Diameter 4" (10.16 cm)
4
5
Ref
No.
1.
8
2.
3.
4.
5.
6.
7.
9
8.
6
7
9.
Part No.
Description
Qty
7002-025OC125A
7207-025A
1985
1776
1773
1482
1483
1986
1528
1528-1
1527
Screw, socket head
Lock Washer
Head, iron
Ring expander
Piston ring
Locknut
Lock pin
Piston platform
Shim washer, thick
Shim washer, thin
Thrust washer
8
8
1
3
3
1
1
1
As
Req.
1
Piston Clearance (Cold)a
Model
490
Piston Rod
491b
491c
Minimum
Maximum
0.000" (0.00 mm)
0.024" (0.61 mm)
0.020" (0.51 mm)
0.044" (1.12 mm)
a The
distance from the bottom of the head to the top of the piston.
bFor 491 compressor with flat gasket.
cFor 491 compressor with head O-rings.
CAUTION: Always Relieve Pressure In The Unit Before Attempting Any Repairs.
70
Appendix I—490, 491, and F491 Packing Assembly Details
Packing Assembly Bill of Materials
1
4
2
3
7
5
6
16
7,8,9
10
8
11
Ref
No.
Part No.
Description
1.
3713a
2.
3.
4.
5.
6.
7.
8.
9.
2-243_b
5000-137
1012
1628
1714
1453-1
1454c
1452-1
10.
2801
11.
2799
12.
1387
13.
2-139_b
14.
15.
16.
2765d
1489
1452-1X1
17.
1488
18.
Cylinder (491 w/Oring)
O-ring for cylinder
Retainer ring
Washer
Packing spring
Packing box washer
Male packing ring
Packing ring
Female packing ring
Cartridge holddown
screw
Packing box
cartridge
Adjusting screw
O-ring (packing
cartridge)
Crosshead guide
Crankcase gasket
Packing set
Inspection plate
gasket
Inspection plate
1487
70031/4-20x3/8"
025NC037E
19.
9
not
1192
shown
12
Locking device
Qty
1
2
2
2
2
2
2
6
2
2
2
2
2
1
1
2
1
1
4
4
Additional Assembly
13
Assembly
Number
1384-X
14
Assembly Name
Crosshead assembly
O-ring Code
Piston Rod
19
15
17
18
A
Buna-N
B
Neoprene®e
a S/N
FZ44188 and later
denotes O-ring code. See O-ring chart
above for details
cThe quantity of 1454 packing rings
required will vary due to tolerances. Use
Cone 4005 for packing installation.
dS/N XC30633 and later
eRegistered trademark of the DuPont
company.
b_
­­
71
CAUTION: Always Relieve Pressure In
The Unit Before Attempting Any Repairs.
Appendix I—490, 491, and F491 Connecting Rod Assembly Details
1
2
3
2
Connecting Rod Assembly Bill of Materials
Ref
No.
1.
2.
3.
4.
5.
6.
7.
8.
9.
4
5
5
Part No.
Description
1384-X
1498
1496
1495-Xa,b
1492b
1490-X
1490b
1491b
1493b,c
Crosshead assembly
Retainer ring
Wrist pin
Wrist pin bushing
Bolt
Connecting rod assembly
Connecting rod
Connecting rod bearing
Nut
a Must
be rebored after replacing (0.8754/0.8751 dia.)
with connecting rod assembly
cTorque connecting rod nut to 30 ft. lbs.
bIncluded
6, 7
Never attempt to separate the piston rod and crosshead. When repair
becomes necessary, the entire crosshead assembly must be replaced.
8
Note
alignment
marks
CAUTION: Always Relieve Pressure In The Unit Before Attempting
Any Repairs.
9
72
Appendix I—490, 491, and F491 Flywheel Assembly Details
Back Side
Flywheel Assembly Bill of Materials
Front Side
73
Assembly Number
Assembly Name
2549-X
Flywheel assembly
(flywheel, hub, and
three bolts)
2549
Flywheel: 16" O.D.,
3 groove
H SF-1.375
Hub with three
bolts and
lockwashers
Appendix I—490, 491, and F491 Crankcase Assembly Details
3
1 2
4
11
10
5
12
13
14
6
15
9
7
16
17
2-1
18
8
19
18
26
28
25 24
27
37
44
35
21
34
38
20
23
21
22
39 (assembly)
40
41
46 9
36
45
31
30
32
47
48
49
50
44
33
51
27
29
40
43 (assembly)
74
52
42
Appendix I—490, 491, and F491 Crankcase Assembly Details
Crankcase Assembly Bill of Materials
Ref
No.
Part No.
Ref
No.
Description
Part No.
c
Description
1.
4438
Oil seal
42.
2-228_
O-ring (pump cover)
2.
7001-037NC075A
Hex head bolt 3/8-16 x 3/4
43.
4222-X
Oil filter assembly - external
2-1. 7001-031NC075A
Hex head bolt 5/16-18 x 3/4
44.
1629
1/16" NPT pipe plug, flush seal
3.
2847-1
Bearing cover
45.
7001-037NC100A
Hex head bolt 3/8-16 x 1
1504
Bearing adjustment shim (0.005")
46.
2805-X
Pump shaft bushing
1504-1
Bearing adjustment shim (0.007")
47.
2850
Pump shaft adapter
1504-2
Bearing adjustment shim (0.020")
48.
2852
Oil pump spring
5.
1502
Bearing cup
49.
2851
Spring guide
6.
1508-X
Oil bayonet
7.
1511
Crankcase inspection plate gasket
50.
2849-X
Oil pump assembly (individual pump
parts not available)
8.
2853
2798
Pump cover pin with 2848-X
2848-X
Pump cover (includes pin)
4225
Oil filter
4.
9.
Crankcase inspection plate
c
2-112_
b
51.
O-ring (oil bayonet & pump shaft)
10.
2803
11.
1279
12.
2-111_
O-ring (breather cap)
13.
2796
Breather ball
14.
1483
Lock pin
15.
1663
Flywheel key
16.
1501
52.
Crankcase
Breather cap
c
Other Assemblies
Assembly
Number
Assembly Name
1279-X
Breather cap assembly with 1279, 2-111A
Bearing cone
1499-X
Crankshaft assembly with 1284 (2), 1286, 1499, 1501,
1503, 2590
1499-X
Crankshaft assembly with 1284 (2),
1286, 1499, 1501, 1503, 2590
1499-SX
1499-SX
Extended crankshaft assembly with 1284
(2),1286, 1499-S, 1501, 1503, 2590
1508-X1
Oil bayonet assembly with 1508-X, 2-112A
18.
1284
Crankcase orifice (2)
1515-X
19.
1503
Bearing cone
Closure cap assembly including 2-218A (2), (Spec. 3,
4, 8, 9 only)
20.
1286
Pump shaft drive pin
1459
Crankshaft plug (depends on design)
2804-X
Bearing carrier assembly with 1290, 1291, 1292,
1293, 1500, 1513, 1515-X, 1629 (2), 2590, 2804,
2849-X, 2850, 2851, 2852, 2961-X, 2-011A, 2-112A,
2-228A, 4222-X
17.
21.
a
Extended crankshaft assembly with 1284 (2), 1286,
1499-S, 1501, 1503, 2590
2590
Pipe plug (depends on design)
22.
1280
Filter screw
2847-1X
Bearing cover assembly with 2847-1, 3855
23.
1281
Filter screen screw gasket
3271-Xa
Flywheel assembly with 3271, 3217 (not part of
crankcase assembly (not shown)
c
24.
2-116_
O-ring (filter screen)
25.
1276
Filter screen washer
26.
1275
Oil filter screen
O-ring Code
27
3289
Pipe plug
A
Buna-N
28.
1661
Plug 3/8" NPT
B
Neoprene®d
29.
1290
Relief valve adjusting screw
30.
1291
Adjusting screw locknut
31.
2-011_
O-ring (relief valve adjusting screw)
32.
1292
Relief valve spring
33.
1293
Relief valve ball
34.
1500
Bearing cup
35.
2961-X
Air release valve assembly with 2961,
2962, 2963
36.
1513
Bearing carrier gasket
37.
2804
Bearing carrier
38.
2-218_
O-ring (closure body) (2) (Spec. 3, 4, 8,
9 only)
39
1515-X
Closure cap assembly
40.
7001-025NC050A
Hex head bolt 1/4-20 x 1/2
41.
1302
Oil pressure gauge
c
c
a Optional
equipment
capacity: 3 quarts (2.8 liters)
c_ denotes O-ring code. See O-ring chart above for details.
dRegistered trademark of the DuPont company.
CAUTION: Always Relieve Pressure In The Unit Before Attempting
Any Repairs.
bCrankcase
75
Appendix J—691 and F691 Head and Valve Assembly Details
690 Head Assembly
Valve Holddown Assemblies
Suction
Spec 3
9
8
10
4
Suction
Spec 4
1
5
12
12
13
12
13
14
13
14
14
15
5
11.1
4.1
16
16
17
17
8
6
15
15
16
11
Discharge
All Specs
17
691 Head Assembly
8
18
18
18
9
4
2
5
101
102
103
19
19
19
5
11.2
Valve Assemblies
4.1
8
7
Suction Valve
Spec 3
20
21
22
23
F691 Head Assembly
9
Suction Valve
Spec 4
24
3
Discharge Valve
All Specs
33
25
32
26
27
11.2
7
76
31
32
26
104
27
28
28
29
29
30
31
28
104
29
26
27
31
104
Appendix J—691 and F691 Head and Valve Assembly Details
Head and Valve Bill of Materials
Ref
No.
Part No.
Description
Head (690)
1.
1743
2.
3458
3.
4299
4.
4.1
5.
6.
d
Head (691)
F691 head
2144-2
c
2144-1.5
2144-1.5S
Flange (discharge) 1-1/2" NPT
c
a
2-231_
b
Flange 1-1/2" Weld
O-ring
b,c
1744-1
a
Head gasket grafoil
2-261_
O-ring for head (691)
7001-043 NC150A
Bolt, 7/16-14 x 1-1/2" hex head
2136
Center head bolt
1625
Center head bolt gasket (aluminum)
c
Center head bolt gasket (copper)
1625-2
c
Center head bolt gasket (iron-lead)
11.
7005-043 NC125A
Bolt, 7/16-14 x 1-1/4" ferry head
11.1
7006-043A
1625-1
11.2 7005-050 NC150A
12.
3948-X
Suction valve assembly (spec. 3)
(includes valve gasket)
3948-X1c
Same as above but with copper
gasket
3948-X2
Same as above but with iron-lead
gasket
3856-X
Suction valve assembly (includes
valve gasket)
103.
104.
Reg. lockwasher 7/16"
c
Same as above but with copper
gasket
2255-X2
c
Same as above but with iron-lead
gasket
3857-X
Discharge valve assembly (includes
valve gasket)
3856-X1
c
Same as above but with copper
gasket
3857-X2
c
Same as above but with iron-lead
gasket
3146-X1
Valve repair kit (suction & discharge)
3857-X1
Other Assemblies
Bolt, 1/2-13 x 1-1/2" ferry head
2714
Valve cap
Head Assembly Number
Models
Valve Specification
2714-1
Valve cap, grooved for O-ring
1743-X
690
3
O-ring for valve cap
3458-X
691
3
a
2-031_
13.
102.
Head gasket (690)
8.
10.
Assembly Name
c
Flange 2" weld
7.
9.
101.
Valve Assembly No.
Flange (suction) 2" NPT
2144-2S
1744
Ref
No.
2716
c
Gasket (aluminum) for valve cap
c
Gasket (copper) for valve cap
O-ring Code
2716-2
c
Gasket (iron) for valve cap
A
Buna-N
14.
2715
Holddown screw
15.
7001-043 NC137A
Bolt, 7/16-14 x 1-3/8" hex head
B
Neoprene®e
16.
1764
Valve cover plate
2716-1
a
17.
2-235_
O-ring (cover plate)
18.
2797
Valve cage
2114
19.
denotes O-ring code. See O-ring chart above for details.
included in head assembly.
cOptional.
dS/N NQ51455 and later. Earlier models use gasket #2177.
eRegistered trademark of the DuPont company.
bNot
Valve gasket (aluminum)
c
2114-1
c
20.
a _
Valve gasket (copper)
2114-2
Valve gasket (iron)
5000-77
Retainer ring
21.
3977
Suction valve relief housing (spec 3)
22.
1411
Spring
23.
1410
Relief ball
24.
3948
Valve seat (spec. 3)
25.
2534-1
Suction valve post (spec 3)
26.
3872
Inner valve plate
27.
3871
Outer valve plate
28.
3929
Inner valve spring
29.
3928
Outer valve spring
30.
3949
Valve bumper (spec. 3)
31.
3857
Valve bumper
32.
3920
Valve stud
33.
3856
Valve seat
77
Appendix J—691 and F691 Piston Assembly Details
1
2
3
Piston Assembly Number 1987-X1 Bill of Materials
Piston Diameter 4.5" (11.43 cm)
Ref
No.
1.
4
2.
3.
4.
5.
6.
7.
5
6
7
8
8.
Part No.
Description
Qty
7002-025TP125A
7207-025A
1987
1740
1739
1482
1483
1735
1735-1
1986
Screw, socket head
Lock washer
Head, iron
Ring expander
Piston ring
Locknut
Lock pin
Shim washer, thick
Shim washer, thin
Piston platform
8
8
1
3
3
1
1
As
Req.
1
Piston Clearance (Cold)a
Piston Rod
Model
690
Minimum
0.000" (0.00 mm)
Maximum
0.012" (0.30 mm)
691
0.015" (0.38 mm)
0.027" (0.68 mm)
a The
distance from the bottom of the head to the top of the piston.
CAUTION: Always Relieve Pressure In The Unit Before Attempting Any Repairs.
78
Appendix J—691 and F691 Packing Assembly Details
Packing Assembly Bill of Materials
Ref
No.
1.
2.
1
2
3
4
5
7
8
6
17
7,8,9
10
Part No.
Description
3457
2-247_a
Cylinder
O-ring for cylinder
Cartridge holddown
screw
Retainer ring
Packing spring
Packing washer
Male packing ring
Packing ring
Female packing ring
Packing box cartridge
O-ring (packing
cartridge)
Cartridge plate
Retainer ring
Crosshead guide
Adjusting screw
Crankcase gasket
Packing set
Inspection plate gasket
Inspection plate
3.
1749
4.
5.
6.
7.
8.
9.
10.
5000-175
1731
1728
1724
1725
1723
2407
11.
2-233_a
12.
13.
14.
15.
16.
17.
1748
5000-350
2405
1722
1761
1725-2X
18.
1760
19.
Qty
1721
700320.
Screw-1/4-20x3/8"
025NC037E
not
Locking device for
1192
shown
adj. screw
Locking device
not
2893
cartridge holddown
shown
screw
9
15
11
1
2
2
2
2
2
2
4
2
2
2
2
2
1
2
1
2
1
1
4
4
Other Assemblies
Assembly
Number
1717-X1
14
2405-X
3544-X4
12
Assembly Name
Crosshead assembly “P” style
Crosshead guide assembly with
1748 (2), 2405, 5000-350 (2)
Crosshead assembly “M” style
13
O-ring Code
Piston Rod
20
19
18
79
Buna-N
B
Neoprene®b
a _
denotes O-ring code. See O-ring chart
above for details.
bRegistered trademark of the DuPont
company.
16
A
CAUTION: Always Relieve Pressure In The
Unit Before Attempting Any Repairs.
Appendix J—691 and F691 Connecting Rod Assembly Details
1
2
7
2
8
Connecting Rod Assembly Bill of Materials
3
3
Part Number
Ref
No. Spec. K,P Spec. M
Only
Only
1.
1717-X1
3544-X4
2.
1498
3590
3.
1718
3540
a,b
3541-Xb,d
4.
1495-X
1726b
5.
1726b
6.
1720-X
3785-X1
b
3785b
7.
1720
3542b
8.
1719b
b,c
1727b,c
9.
1727
Description
Crosshead assy.
Retainer ring
Wrist pin
Wrist pin bushing
Bolt
Conn. rod assy.
Connecting rod
Conn. rod bearing
Nut
a Must
be rebored after replacing (0.8754/0.8751 dia.)
with connecting rod assembly
cTorque connecting rod nut to 40 ft. lbs.
dMust be rebored after replacing (1.1256/1.252 dia.)
bIncluded
9
4,5
Note
alignment
marks
6
6
80
Never attempt to separate the piston rod and crosshead. When
repair becomes necessary, the entire crosshead assembly must
be replaced.
CAUTION: Always Relieve Pressure In The Unit Before
Attempting Any Repairs.
Appendix J—691 and F691 Flywheel Assembly Details
Back Side
Flywheel Assembly Bill of Materials
Front Side
81
Assembly Number
Assembly Name
1762-X
Flywheel assembly
(flywheel, hub, and
three bolts)
1762
Flywheel: 19.5"
O.D., 4 groove
H E-2.125
Hub with three
bolts and
lockwashers
Appendix J—691 and F691 Crankcase Assembly Details
15
14
16
13
20
5
17
12
18
19
11
28
9
8
4
10
7
3
4
5
21
24
23
22
25
26
27
2
1
6
30
37
38
39
36
32
29
31
51
40
41
35
34
33
28
49
47
50
Inside of
Bearing Carrier
57
56
48
46
45
54
44
42
55
60
53
43
52
33
58
59
55
50
55
Oil Passage Hole
Important! Line up hole in
gasket with oil passage hole.
Pump Cover Oil/Filter Adapter
42
60
Pumpside of adapter shown for
proper orientation of cover and
location of pump cover pin.
61
(Includes all parts shown
except #52 and #53)
82
Appendix J—691 and F691 Crankcase Assembly Details
Crankcase Assembly Bill of Materials
Ref
No.
Part No.
Description
Ref
No.
Part No.
Description
1.
1737
Bearing cone
48.
2-112_d
O-ring
2.
3638
Spacer
49.
2805-X_
Pump shaft bushing
3.
3635
Drive sprocket
50.
1629
Pipe plug, 1/16 NPT fl. seal
4.
1284
Crankshaft orifice
51.
1736
Bearing cup
d
5.
2135
Drive pin
52.
1302
Oil pressure gauge
6.
2933
Link pin
53.
1044
Bushing, 1/8 x 1/4 NPT
7.
3786
Crankshaft
54.
3220-2
Bearing carrier
8.
3503
Flywheel key
55.
3289
Pipe plug, 1/4 NPT fl. seal
9.
3580
Bearing cone
56.
2131
Bearing carrier gasket
10.
3786-X1
Crankshaft assembly
57.
2961-X
Air release valve assembly
11.
7001-031NC075A
Bolt, 5/16 - 18 x 3/4" hex head
58.
2590
Pipe plug, 1/8 NPT fl. Seal
12.
2122
Inspection cover
59.
4225
Filter
Gasket, inspection cover
60.
2798
Pump cover pin (included w/4222-X)
61.
3220-2X
Bearing carrier assembly M3 style
13.
2123
d
14.
2-210_
O-ring
15.
3225-X1
Oil bayonet assembly (w/O-ring)
16.
2126
Breather ball
17.
3579
Bearing cup
3589
Bearing adjustment shim (.005")
3589-1
Bearing adjustment shim (.007")
3589-2
Bearing adjustment shim (.020")
19.
3539
Bearing cover
O-ring Code
20.
3526
Oil seal
21.
1280
Filter screw
A
Buna-N
22.
1281
Gasket, filter
B
Neoprene®e
23.
2-116_
O-ring
24.
1276
Washer
25.
1275
Oil filter screen
26.
3443
Pipe plug, 1/2" NPT steel
27.
3221
Crankcase
28.
7001-037NC100A
Bolt, 3/8 - 16 x 1" hex head Gr. 5
29.
3875
Access cover
30.
7003-025NC037E
Screw, 1/4 - 20 x 3/8"
31.
3874
Gasket, access cover
32.
1515-X
Closure cap assembly
33.
7001-025NC050A
Bolt, 1/4 - 20 x 1/2" hex head
34.
1515
Closure cap
35.
1516
36.
2-218_
O-ring
37.
1290
Relief valve adjusting screw
18.
d
Additional Assembly
d
38.
2-011_
O-ring
39.
1291
Adjusting screw locknut
40.
1292
Relief valve spring
41.
1293
4222-X
2-228_
44.
2849-1X
45.
2851
Spring guide
46.
2852
Oil pump spring
47.
3219
Pump shaft adapter
d
O-ring
c
Crankcase assembly (M3, 4, 8, 9) without lubrication
shown
be rebored and honed after replacing (0.876"/0.875" diameter)
cCaution: To avoid damage during assembly, refer to installation
Instruction Manual IE400.
d_denotes O-ring code. See O-ring chart above for details.
eRegistered trademark of the DuPont company.
Oil filter adapter assembly (w/pin)
42.
43.
3221-X1a
bMust
Relief valve ball
c
Assembly Name
a Not
Closure body
d
Assembly
Number
Oil pump assembly
83
CAUTION: Always Relieve Pressure In The Unit Before Attempting
Any Repairs.
Appendix K—D891 Head and Valve Assembly Details
891 Head
4
Valve Holddown
Assembly (4-1/2")
Valve Holddown
Assembly (4-1/2")
Suction
Discharge
1
2
2
3
5
5
6
6
7
7
14
14
8
8
9
9
10
10
3
12
11
O-ring Code
A
Buna-N
B
Neoprene®d
Compressor Head and Valve Bill of Materials
Ref
No.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
Part No.
13
13
Valve Assemblies (4-1/2")
Suction
Valve
Description
3923
3924
2-246__b
Cylinder cap
Cylinder head (4-1/2")
O-ring
Bolt, 1/2 - 13 x 1-1/2" hex head
7001-050 NC150A
Gr 5 (Torque to 65 ft•lbs)
2714-1
Valve cap
b
O-ring
2-031__
2715
Holddown screw
1764
Valve cover plate
O-ring
2-235__b
3570-1
Valve cage
3732-X
Suction valve assembly (4-1/2")
3733-X
Discharge valve assembly (4-1/2")
Valve gasket
2114a
Bolt, 7/16 - 14 x 1-1/2" hex head
7001-043 NC150A
(Torque to 37 ft•lbs)
3827
Valve seat (4-1/2")
3828
Stud
Valve plate, outer
3830c
Valve plate, inner
3831c
Spring
3829c
3826
Valve bumper (4-1/2")
Valve repair kit (1st stage)
3805-X1c
84
Discharge
Valve
15
20
16
16
17
18
19
21
17
19
18
20
15
a Included
21
with valve assembly
denotes O-ring code. See O-ring chart above for details.
cIncluded with valve repair kit.
dRegistered trademark of the DuPont company.
b_
CAUTION: Always relieve pressure in the unit before
attempting any repairs.
Appendix K—D891 Piston Assembly Details
1
Piston Assembly Bill of Materials
2
Part No.
Ref.
No.
3
D891
3925-X1 (4-1/2")
Description
1.
7002-025-TP100A
Screw, orlo gr. 8 (torque to 8 ft•lbs)
4
2.
3927
Piston cap
1
2902
Shim washer, thick
2902-1
Shim washer, thin
3.
1739
Qty
As
req.
Piston rings
4
4.
5
5.
1740
Expander ring
4
6.
3604
Lock nut (torque to 150 ft•lbs)
1
7.
3730
Thrust washer
2
8.
3925
(4-1/2" diameter)
Piston
1
4
5
9.
4
10.
1739-2
Alloy 50 rings—opt.
1739-3
Peek rings—opt.
4
3603
Shim washer, thick
3603-1
Shim washer, thin
As
req.
3812 (not shown)
Loctite tube—620
1
5
Piston Clearance (Cold)
Model
4
5
6
D891
Top Min. a
Top Max. a
Bottom Min.b
Bottom Max.b
0.084" (2.13 mm)
0.104" (2.64 mm)
0.010" (0.25 mm)
0.020" (0.50 mm)
a The
distance from the bottom of the head to the top of the piston.
bThe distance from the bottom of the piston to the top of the packing barrel.
CAUTION: Always Relieve Pressure In The Unit Before Attempting Any Repairs.
7
8
Piston
Piston
9
9
Piston
Piston
Rod
Piston top dead center
85
Piston
Piston bottom dead center
Appendix K—D891 Crosshead Guide Assembly Details
17
Packing barrels
and cartridges
(For parts details,
see D891 packing
on previous pages).
17
12
16
12
15
14
13
86
Appendix K—D891 Crosshead Guide Assembly Details
Crosshead Guide Bill of Materials
Ref
Part No.
No.
1.
3922
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
Description
Cylinder
Drain valve (lubricated
1054
models)
1071
Nipple, 1/4" x close
O-ring for cylinder
2-246_a
3442
Pipe plug, 1/4" NPT
Bolt, 1/2" 13 x 1-3/4"
7001-050NC175A
hex head gr 5
3793-2S
Flange (inlet/outlet)
O-ring for flange
2-231_a
3253
Roll pin
2405-1
Crosshead guide
1064
Elbow, 1/4" NPT
3974
Tag
1761
Gasket, crankcase
Gasket, inspection
1760
cover
1721
Inspection cover
Bolt, 10 - 24 x 1/4"
7012-010NC025B
Phillip hd.
Qty
1
1
1
2
3
24
2
2
1
1
1
1
1
1
1
10
O-ring Code
A
Buna-N
B
Neoprene®b
a _
denotes O-ring code. See O-ring chart above for details.
trademark of the DuPont company.
bRegistered
CAUTION: Always Relieve Pressure In The Unit Before Attempting
Any Repairs.
Note:
Packing barrel installation:
1. Use packing installation cone #905 on the piston rod.
2. Insert small barrel first, use finger holes to align slinger ring on to
the rod. Slip the packing barrel into place.
3. Align pin with slot in large packing barrel.
4. Slip large packing barrel in place.
87
Appendix K—D891 Packing Assembly Details
Specification “J”
Specification “K”
1
1
2
2
3
3
4
5
4
5
6
6
Radial
Tangent
7
7
4
5
4
5
6
6
Radial
Tangent
Upper
Segmented
Packing
Set
Radial
Tangent
4
5
6
7
7
4
5
4
5
6.1
Tangent
Tangent
6.1
7
7
8
8
9
10
11
12
13
14
13
19
Lower
V-ring
Packing
Set
18
Upper
Segmented
Packing
Set
4
5
6
15
V-ring Packing Direction
Lower Packing
Specification
“J”
Lower Packing
Specification
“K”
Radial
Tangent
Tangent
Tangent
9
10
11
12
13
15
17
16
16
17
15
16
17
Radial
Tangent
7
7
18
Radial
Tangent
17
16
15
13
14
To Crankcase
To Crankcase
13
13
12
12
88
19
Lower
V-ring
Packing
Set
Appendix K—D891 Packing Assembly Details
Packing Assembly Bill of Materials
Specification “R”
Ref
No.
1.
2.
3.
1
Packing barrel (4-1/2")
O-ring
Crush gasket
Packing cup (Not included in 3810-X1
packing set)
Cup O-ring
Segmented packing
(radial—tangent) pair
Segmented packing
(tangent—tangent) pair
Back-up ring
Screw, 1/4-20 x 1" socket head
Cartridge
O-ring
Oil deflector ring
Retainer ring
Washer
Spring
Male packing ring
V-ring packing
Female packing ring
Segmented packing set
V-ring packing set
2
5.
2-036_
3
6.
3810
4
5
6.1.
3814
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
3811
7002-025OC100A
3885
a
2-231_
b
1732
5000-175
1728
1731
1724
1725
1723
e
3810-X1
1725-2X
Tangent
Tangent
4
5
6.1
Tangent
Tangent
7
4
5
6.1
Tangent
Tangent
a,d
7
Identification of Packing Specification
4
5
Example: Model Number D891 J M4FBA
Packing Spec.
6.1
Tangent
Tangent
7
8
9
V-ring
Packing
Direction
Lower Packing
Specification
“R”
11
15
12
16
13
15
16
17
13
12
Segmented packing for
Specification “J”, “K”, & “R”
Piston (Pressure) Side
Piston (Pressure) Side
Align pin
with hole
Tangent Cut
(without pin)
Tangent Cut
(with pin)
Tangent Cut
(with pin)
Back-up
ring
Back-up
ring
To Crankcase
13
14
Segmented Packing for
Specification “J” & “K”
Radial Cut
(without pin)
10
19
Lower
V-ring
Packing
Set
3926
a,c
2-238_
3906
3817
7
Upper
Segmented
Packing
Set
Description
4.
6.1
18
Part No.
Align pin
with hole
To Crankcase
17
IMPORTANT: Identify and line up the rings before installing. Be sure
they face the way shown here and that the pin and hole are aligned
when assembled.
To Crankcase
a _
denotes O-ring code. See O-ring chart for details.
ring is loose within the packing cartridge until fitted on the
piston rod. Must be put in from the bottom of the cartridge.
cInsert O-ring into the groove in the bottom of the barrel.
dStarting with S.N. NN51397.
ePacking cup O-ring not included in packing set.
f Registered trademark of the DuPont company.
bDeflector
O-ring Code
A Buna-N
®f
B Neoprene
®f
D Viton
E PTFE
®f
K Kalrez
89
Appendix K—D891 Connecting Rod Assembly Details
1
2
7
2
8
Connecting Rod Assembly Bill of Materials
3
3
Ref
No.
1.
2.
3.
4.
5.
6.
7.
8.
9.
Part No.
Description
3544-X3
3590
3540
3541-Xa,b
1726b
3785-Xa
3785a
3542a
1727a,c
Crosshead assembly
Retainer ring
Wrist pin
Wrist pin bushing
Bolt
Connecting rod assembly
Connecting rod
Connecting rod bearing
Nut
a Included
with connecting rod assembly
connecting rod nut to 40 ft. lbs.
cMust be rebored after replacing (1.1256/1.252 dia.)
bTorque
9
4,5
Never attempt to separate the piston rod and crosshead. When repair
becomes necessary, the entire crosshead assembly must be replaced.
Note
alignment
marks
CAUTION: Always Relieve Pressure In The Unit Before Attempting
Any Repairs.
6
6
90
Appendix K—D891 Flywheel Assembly Details
Back Side
Flywheel Assembly Bill of Materials
Front Side
91
Assembly Number
Assembly Name
3852-X
Flywheel assembly
(flywheel, hub, and
three bolts)
3852
Flywheel: 21.2"
O.D., 5 groove
H J-2.125
Hub with three
bolts and
lockwashers
Appendix K—D891 Crankcase Assembly Details
15
14
16
13
20
5
17
12
18
19
11
28
9
8
4
10
7
3
4
5
21
24
23
22
25
26
27
2
1
6
30
37
38
39
36
32
29
31
51
40
41
35
34
33
28
49
47
50
Inside of
Bearing Carrier
57
56
48
46
45
54
44
42
55
60
53
43
52
33
58
59
55
50
55
Oil Passage Hole
Important! Line up hole in
gasket with oil passage hole.
Pump Cover Oil/Filter Adapter
42
60
Pumpside of adapter shown for
proper orientation of cover and
location of pump cover pin.
61
(Includes all parts shown
except #52 and #53)
92
Appendix K—D891 Crankcase Assembly Details
Crankcase Assembly Bill of Materials
Ref
No.
1.
Part No.
1737
Ref
No.
Description
Part No.
48.
Bearing cone
Description
d
O-ring
b
2-112_
2.
3638
Spacer
49.
2805-X
Pump shaft bushing
3.
3635
Drive sprocket
50.
1629
Pipe plug, 1/16 NPT fl. seal
4.
1284
Crankshaft orifice
51.
1736
Bearing cup
5.
2135
Drive pin
52.
1302
Oil pressure gauge
6.
2933
Link pin
53.
1044
Bushing, 1/8 x 1/4 NPT
7.
3786
Crankshaft
54.
3220-2
Bearing carrier
8.
3503
Flywheel key
55.
3289
Pipe plug, 1/4 NPT fl. seal
9.
3580
Bearing cone
56.
2131
Bearing carrier gasket
10.
3786-X1
Crankshaft assembly
57.
2961-X
Air release valve assembly
11.
7001-031NC075A
Bolt, 5/16 - 18 x 3/4" hex head
58.
2590
Pipe plug, 1/8 NPT fl. Seal
12.
2122
Inspection cover
59.
4225
Filter
13.
2123
Gasket, inspection cover
60.
2798
Pump cover pin (included w/4222-X)
61.
3220-2X
Bearing carrier assembly
d
14.
2-210_
O-ring
15.
3225-X1
Oil bayonet assembly (w/O-ring)
16.
2126
Breather ball
17.
3579
Bearing cup
3589
Bearing adjustment shim (.005")
Assembly
Number
2589-1
Bearing adjustment shim (.007")
3221-X1
2589-2
Bearing adjustment shim (.020")
19.
3539
Bearing cover
O-ring Code
20.
3526
Oil seal
21.
1280
Filter screw
A
Buna-N
22.
1281
Gasket, filter
B
Neoprene®e
23.
2-116_
O-ring
24.
1276
Washer
25.
1275
Oil filter screen
26.
3443
Pipe plug, 1/2" NPT steel
27.
3221
Crankcase
28.
7001-037NC100A
Bolt, 3/8 - 16 x 1" hex head Gr. 5
29.
3875
Access cover
30.
7003-025NC037E
Screw, 1/4 - 20 x 3/8"
31.
3874
Gasket, access cover
32.
1515-X
Closure cap assembly
33.
7001-025NC050A
Bolt, 1/4 - 20 x 1/2" hex head
34.
1515
Closure cap
35.
1516
36.
2-218_
37.
1290
38.
18.
d
Additional Assembly
a
a Not
O-ring
2-011_
d
O-ring
39.
1291
Adjusting screw locknut
40.
1292
Relief valve spring
41.
1293
42.
4222-X
43.
2-228_
44.
2849-1X
Oil pump assembly
45.
2851
Spring guide
46.
2852
Oil pump spring
47.
3219
Pump shaft adapter
Relief valve adjusting screw
Relief valve ball
c
Oil filter adapter assembly (w/pin)
d
O-ring
c
Crankcase assembly (M3, 4, 8, 9) without lubrication
shown
be rebored and honed after replacing (0.876"/0.875" diameter)
cCaution: To avoid damage during assembly, refer to installation
Instruction Manual IE400.
d_denotes O-ring code. See O-ring chart above for details.
eRegistered trademark of the DuPont company.
CAUTION: Always Relieve Pressure In The Unit Before Attempting
Any Repairs.
bMust
Closure body
d
Assembly Name
93
94
95
Corken, Inc. • A Unit of IDEX Corporation
3805 N.W. 36th St., Oklahoma City, OK 73112
Phone (405) 946-5576 • Fax (405) 948-7343
Visit our website at http://www.corken.com
or e-mail us at info.corken@idexcorp.com
Printed in the U.S.A.
July 2009
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