Acer | AIR-104 | Owner`s manual | Acer AIR-104 Owner`s manual

LH
Owner’s Manual
• Installation
• Use
• Maintenance
GENERAL PUMP
INDEX
A member of the Interpump Group
LH SERIES
1.
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 3
3.
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page
3.1 General warnings for safe operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page
3.2 High pressure unit safety requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page
3.3 Safety of operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page
3.4 General procedures for high pressure lance/gun operation . . . . . . . . . . . . . . .Page
3.5 Safety of maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page
2.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
SYMBOL DESCRIPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 3
3
3
3
4
4
4
PUMP IDENTIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 5
TECHNICAL FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 5
DIMENSIONS AND WEIGHT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 5
GENERAL INFORMATION ABOUT SPECIFIC PUMP USE . . . . . . . . . . . . . . . . .Page
7.1 Water temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page
7.2 Maximum flow and pressure ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page
7.3 Lowest operating RPM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page
6
6
6
6
PUMP INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page
9.1 Positioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page
9.2 Direction of rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page
9.3 Water connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page
9.4 Suction line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page
9.5 Filtration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page
9.6 Delivery time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page
7
7
7
7
7
8
8
MAINTENANCE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page
11.1 Crank mechanism maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page
11.2 Fluid end maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page
11.3 Pumping unit maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page
10
10
10
12
CONNECTION AND PLUGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 6
START UP AND RUNNING PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page
10.1 Before start up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page
10.2 Starting up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page
10.3 Water leakage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page
9
9
9
9
SCREW CALIBRATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 15
MAINTENANCE TOOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 15
PUMP STOPPED FOR LONG TIME . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 15
15.
PRECAUTIONS AGAINST FREEZING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 15
17.
TROUBLE SHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 20
16.
EXPLODED VIEWS AND PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 16
Page 2
GENERAL PUMP
1. INTRODUCTION
A member of the Interpump Group
LH high pressure water plunger pumps have been
designed for long life industrial duties and provided they
are correctly installed and maintained will give long
trouble-free operation. Read and understand this
manual before using your pump; it contains the
necessary information for the correct installation, use and
maintenance as well as some practical suggestion for
trouble shooting.
Upon receipt of your pump, inspect for overall good
condition and that no items are missing. Any missing
item or damage should be reported before installing
and starting the pump.
2. SYMBOL DESCRIPTIONS
Warning
Potential Danger
Read carefully and understand
the manual before operating
the pump
Danger
High Voltage
Danger
Wear protective mask
Danger
Wear goggles
3. SAFETY
LH SERIES
3.1
General
warnings
for
safe
operation
The misuse of a high pressure water unit and the nonobservance of the pump installation and maintenance
instructions may cause serious damages and/or injuries
to people or properties or both.
Any Manufacturer/Operator requested to assemble/use
a high pressure water unit should be competent to do so,
should have the necessary knowledge on every high
pressure component installed in the unit and on the
precautions to be taken in order to guarantee the largest
safety margins during operation. No precaution, so far
as is reasonably practical, should be left out in the
interest of safety, both from the Manufacturer and the
Operator.
3.2
High
pressure
unit
safety
requirements
1. A safety valve should be installed in any delivery line
and should be sized to discharge or by-pass the
entire pump flow rate
2. High pressure unit components, with particular regard
for those units working outside, should be adequately
protected against rain, frost and heat.
3. Electric components and wiring should be provided
with an adequate degree of protection, able to protect
them against spray coming from any direction. They
should also be suitable for working in a wet
environment.
4. High pressure hoses and any other accessory under
pressure should be sized in accordance with the
maximum unit working pressure and must always
work within the safety margins indicated by the nose/
accessory Manufacturer.
5. High pressure hose ends should be fastened to a
steady object in order to prevent them from
dangerous sweeping around, should they burst or
come off their end fittings.
6. Proper safety guards should be provided to
adequately cover transmission joints, pulleys, belts or
auxiliary drives.
Danger
Wear protective gloves
Danger
Wear protective boots
Page 3
GENERAL PUMP
A member of the Interpump Group
3.3 Safety of operation
The access into the area when a high pressure unit is
working should be strictly prohibited to unauthorized
personnel. The area should be suitably enclosed and its
perimeter, so far as is reasonably practical, cordoned
off and proper warning notices displayed in prominent
positions.
Personnel authorized to enter that area should have been
previously trained to do so and informed of the risks
arising from failures, misuse and any foreseeable
circumstance which may occur during operation. Before
starting the pump unit and bringing it up to pressure the
Operator is requested to carry out the following checks:
1. Make sure that a correct water supply to the pump
is provided.
2. Make sure that water inlet filters are properly clean.
3. Electrical components and wiring, with special
emphasis on connections, junction boxes, switches
and supply cables should be free from external
damage (i.e. exposed and broken wires) and
adequately protected against water.
4. High pressure hose should not show apparent
external wear and the fittings at both ends should be
free from signs of erosion or corrosion.
5. Make sure that all fluids (lubricating oil for pump and
engine, cooling water, hydraulic fluids) are at proper
levels and in good condition.
6. Make sure the safety guards are in good condition.
The work should stop immediately and the pressure must
be released in the event that leakage becomes apparent
or if any person becomes aware of an change in condition
or any hazard existing or being introduced. Any failure
must be promptly reported and then checked personnel.
3.4 General procedures for high pressure gun/lance
operation
1. The Operator should take reasonable care for the
safety of himself and of other persons who may be
affected by his acts or omission at work. His actions
should always be governed by his good sense and
responsibility.
2. The Operator should wear suitable waterproof
protective clothing, having regard to the type of work
being undertaken. The clothing set should include
adequate hand protection, suitable boots able to
ensure proper grip on wet floors, helmet provided with
full face shield, waterproof garment providing full
cover to the Operator, including his arms.
As most water jets produce noise levels in excess of
LH SERIES
90 dB(A) suitable ear protection is advised.
NOTE: it must be emphasized that whereas protective
clothing provides adequate protection against spray and
flying particles, it does not constitute complete protection
protection against the direct impact of the water jet.
Additional protections in the form of suitable metal shields
or barriers may be necessary for certain jetting operation.
3. In most jetting operations it is an accepted practice
to employ a team of Operators consisting of two
members at least, in order to provide mutual
assistance in case of need and to rotate their duties
in case of long and heavy work. While the first
Operator holds the gun, the second Operator attends
the pump unit, keeping close watch on the first
Operator for signs of difficulty or fatigue, and
watching the surrounding area for intrusion by other
persons or unsafe situations. If required, he will shut
off the pressure unit until it is safe to continue.
4. The area in which the work is to proceed should be
clear of loose items and debris to prevent
tripping and slipping hazards.
5. The water jet should be directed only and always
against the workpiece even during preliminary
operating tests prior to starting work.
6. Where applicable, proper side shields should be
suitable placed to safeguard personnel and
equipment against contact with grit or particles
removed by the water jet.
7. On no account must the Operator be distracted
during operation until the jet has been stopped.
Personnel having reason to enter the water jetting
area should wait until the jet is stopped and his
presence known.
8. Each team member must always be aware of the
actions and intentions of other team members in order
to prevent any dangerous misunderstanding occurring
during jetting operation.
9. The pump unit should not be started and brought up
to pressure unless each team member is in his
designated position, the nozzle directed to the
workpiece and the lance or gun securely held.
3.5 Safety of maintenance
Apart from the working pressure regulation no attempt
should be made to adjust any nut, hose, fitting, etc., while
that part of the system is under pressure. The pump
should be stopped and any pressure in the line released
prior to making any adjustments.
1. The high pressure water unit should be maintained in
accordance with the Manufacturer’s instructions.
2. The unit should be maintained only by competent
personnel
3. Service and maintenance should be carried out with
proper tools in order to prevent any damage on high
pressure connections and fittings.
4. Use of other than original spare parts is strictly
forbidden.
Page 4
GENERAL PUMP
4. PUMP IDENTIFICATION
LH SERIES
A member of the Interpump Group
Each pump is fitted with a rating plate (see Fig. 1)
containing the following information:
2.
3.
4.
5.
6.
7.
8.
pump model and version
serial number
max RPM
max operating pressure (bar)
oil capacity (ltr) and oil specification
gear box ratio
max flow rate (l/min)
Pump model, pump version and serial number should
be specified when ordering spare parts. Should the pump
be modified (i.e by changing the original version) than
any change should be mentioned on the rating plate for
future reference.
5. TECHNICAL FEATURES
Model
LH40
LH45
LH50
LH55
LH60
Flow
Rate
GPM
A
B
C
1900 RPM 1750 RPM 1500 RPM
R=1:3.389 R=1:3.158 R=1:2.95
50
49.7
45.4
63
62.9
57.6
78
77.4
71.1
94
93.8
86.1
113
112
102
l/m
190
l/m
240
l/m
296
l/m
358
l/m
428
GPM
GPM
GPM
GPM
Gear Box
188
238
6. DIMENSIONS AND WEIGHT
293
355
423
Pressure
PSI
4350
PSI
3500
PSI
2900
PSI
2300
PSI
2050
172
Bar
218
Bar
269
Bar
326
Bar
388
Bar
HP
300
kW
240
kW
200
kW
160
kW
140
kW
HP
A
1900
RPM
148
109
150
110
Power
B
1750
RPM
147
108
153
141
109
HP
148
148
HP
155
154
114
95
137
154
109
135
149
HP
113
C
1500
RPM
112
109
113
101
104
136
100
142
105
Page 5
GENERAL PUMP
A member of the Interpump Group
7. GENERAL INFORMATION ABOUT PUMP
USE
LH SERIES
8. CONNECTIONS AND PLUGS
The LH pump has been designed to pump fresh filtered
water at room temperature. LHZ and LHN special stainless
steel versions are also available for critical fluids.
7.1 Water temperature
Water temperature is critical for the pump life, the higher it
is, the more likely it is to create cavitation, resulting in
premature seal and valve failures.
Below is the temperature chart
and relevant limitations:
<104oF
Water is considered to be at room
temperature.
from
feed the plunger pump with a centrifugal
pump supplying at least twice the plunger
pump volume at 30 to 45 PSI
104oF
to
140oF
>140oF
LH pumps are provided with (Fig. 3):
1 - 2 inlet ports IN Ø 3”.
Suction line connection to any of the two inlet ports
is acceptable, the port not being used should be
sealed with the correct plug.
2 - 2 outlet ports OUT Ø 1.4”.
3 - 1 hole DRAIN provided underneath the crankcase
and designed to drain out the water leakage of the
pressure packings. This hole must always be left
open (see paragraph 10.3, Fig 7, page 9).
reduce pump rated RPM by 30% to 50%
Make sure the crankshaft turns as
indicated by the arrows located neat the
drive shaft projection
standard pump not suitable, contact our
Customer service Department
7.2 Max flow and pressure ratings
The performance data indicated in the catalog and on the
rating plate refer to the maximum performance of the
pump. The use of the pump below the rated performances
does not allow the drop in power absorbed to be balanced
by altering the pressure or volume of the pump above its
maximum value.
7.3 Lowest operating RPM
The lowest operating speed of the crankshaft for all
LH’s (all versions) is 350 RPM
Page 6
GENERAL PUMP
9. PUMP INSTALLATION
A member of the Interpump Group
9.1 Positioning
The pump should be installed flat on a rigid base by
means of the four 3/4” feet. The base should
be rigid enough to avoid any misalignment or flexing of the
pump/transmission coupling axis due to the torque
involved during operation.
On no account should the pump be installed in such a
way its fluid end rests on the base where the pump is
mounted. The fluid end should be left free and not
subjected to any force. (Fig 4).
LH SERIES
9.3 Water connections
In order to isolate the high pressure equipment from the
pump vibrations it is suggested, where applicable, to use
flexible hoses for both suction and delivery lines at least
for the first length. The flexible suction hose must be
rigid enough to prevent it from collapsing during the
suction stroke, when a partial vacuum may occur.
9.4 Suction line
Plunger pumps are not self priming therefore a positive
suction head should always be provided. Information for
the correct suction line:
1. Internal diameter should be at least 3”, in any
point, possibly larger depending on the drop in
pressure due to the length and shape of the line.
2. Should be as straight as possible minimizing changes
in size and direction and positioned in such a way
to allow air pockets and bubbles to escape.
3. Should be perfectly airtight.
4. Should be completely free from 90o elbows, diameter
reductions, counter slopes, “T” connections and
should not be connected to other pipelines.
5. Should positioned in such a way to prevent the pipe
emptying after the pump stops.6. Do not use high
pressure flexible hoses for the suction line.
7. Do not use high pressure hydraulic fittings like 90o
8.
9.
10.
9.2 Direction of rotation
Fig. 5 shows the correct direction of rotation looking at the
pump from the fluid end side. Two arrows stamped on the
crankcase nearby the crankshaft provide the information
as well.
11.
12.
13.
elbows, high pressure adapters, high pressure 3 or
4 way nipples and so on.
Do not install any kind of detergent injector along the
suction line.
Do not install standing valves, check valves or other
kind of one-way valves.
Make sure that the feed tank capacity and the water
minimum level do not give rise to turbulence at the
tank outlet port, which, in turn, might create
cavitation at the pump.
Do not connect the by-pass line from the valve directly
to the pump suction line.
The water flow from the valve should be directed back
in the tank. Make sure that the by-pass and tank
feeding flows to not give rise to turbulence at the
tank outlet port, which, in turn, might create
cavitation at the pump. Proper baffle plates should
be provided inside the tank.
Before connecting the suction line to the pump inlet
port make sure the pipe is perfectly clean inside.
Page 7
GENERAL PUMP
A member of the Interpump Group
LH SERIES
9.5 Filtration
All pumps require a suitable filter. The filter should be
installed as close as possible to the pump, should allow
easy inspection and have the following characteristics:
1. The filter capacity should be at least three times the
rated pump volume.
2. Filter port diameters should not be smaller than the
pump inlet ports.
3. Filtration degree in between 50 and 80 mesh (360
to 200 microns.
IMPORTANT NOTE: In order to properly safeguard the
pump it is very important to plan cleaning of the filter
with a frequency depending on the water quality,
filtration degree and number of hours of each
application.
9.6 Delivery line
For a correct delivery line comply with the following
instructions:
1. The first length of delivery hose should be flexible in
order to isolate the pump vibrations from the
rest of the system.
2. Use only high pressure hoses and fittings able to
guarantee the largest possible safety margins in
any working conditions.
3. A suitable relief valve should be installed in the
delivery line.
4. Use glycerine filled pressure gauges, as the most
suitable for pulsating loads.
5. When designing the delivery line, take into proper
account the unavoidable drop in pressure, due to
its length and size.
6. If necessary, the effects of the pump pulsations
can be reduced by installing a proper pulsation
dampener in the pressure line.
Page 8
GENERAL PUMP
A member of the Interpump Group
10. START UP AND RUNNING PROCEDURES
10.1 Before start up
Before start up make sure that the following conditions
have been complied with:
1. Suction line should be connected: the pump must
never run dry.
2. Suction line must be perfectly air-tight.
3. Any ON-OFF valve in between the pump and water
source should be open and make sure the water
gets into the pump freely.
4. Set the pressure line in dump mode in order to let
the air in the pump get out easily thus facilitating
the pump priming.
5. Make sure all suction/delivery line connections are
fully tightened.
6. Joint alignment, belt tightening and PTO shaft
inclination tolerances should remain within the
values indicated by the transmission Manufacturer.
7. Make sure the oil level is correct.
LH SERIES
10.3 Water leakage
During operation a small amount of water (a few drops a
minute) is released from the pump fluid end; this leakage
is designed to provide lubrication for the pressure
packings. The leakage is drained out of the pump
through a hole in the lower cover (Fig. 6).
This hole must always be kept open.
Note: in case the pump has not run for a long period of
time check the suction and delivery valves for scaling
(see paragraph 11.2).
10.2 Starting up
1. Pump and motor/engine should start offload, set the
regulating valve to zero or set the pressure line in
dump mode by means of proper dumping devices.
2. When starting the pump up for the first time or after
every wiring re-connection check for the proper
direction of rotation.
3. Check that the rotating speed does not exceed the
rated value.
4. Before putting the pump under pressure let it run for
some time until the oil flows freely.
5. Before stopping the pump release the pressure from
the system by operating the dump device or by
releasing the regulating valve and reduce RPM to a
minimum (diesel applications).
Note: in case of feeding by a centrifugal pump, make sure
that the plunger pump start only when the correct
inlet pressure is provided.
Page 9
GENERAL PUMP
A member of the Interpump Group
11. MAINTENANCE INSTRUCTIONS
11.1 Crank mechanism maintenance.
Check oil level through the oil level indicator 1, Fig 8 at
least on a weekly basis.
LH SERIES
11.2 Fluid end maintenance
The fluid end does not require periodical maintenance.
Service operations are limited to valve inspection
and/or replacement, when necessary. In order to remove
the valves:
Loosen and remove the valve cover screws (1, Fig. 9).
If necessary, top up from the oil plug 3, Fig. 8.
Check the oil when cold and change the oil when still
hot (pump still at working temperature.).
In order to drain the oil from the pump remove the
magnetic plug 2, Fig. 8.
At every oil change clean the magnetic plug 2, Fig. 8 and
check the lower cover of Fig. 7 for grease
sediments or deposits.
OIL CHANGES
First Change
Subsequent
Changes
Hours
50
500
Qty.
Oil
Type
3.1
quarts
ISO
220
Oil should be changed at least once a year.
Recommended oils:
BRAND
AGIP
ARAL
AVIA
BP
CASTROL
ESSO
FINA
IP
MOBIL
SHELL
TEXACO
TOTAL
TYPE
ACER 220
MOTANOL HP 220
AVILUB RSL 220
ENERGOL HL 220
ALPHA ZN 220
NUTO 220
SOLNA 220
HYDRUS 220
DTE OIL BB
TELLUS C 220
REGOL OIL 220
CORTIS 220
Tighten the two grub screws (1, Fig. 10) of each valve
cover until the complete valve unit moves upward enough
to allow easy extraction.
Valve components of each
valve unit are pressed
together in one single block
and therefore they can be
easily
replaced
and
installed back in place.
Separating the various
components of the valve
unit is carried out by
means of simple tools as
shown in Fig. 11, 12, 13 on
page 11).
Page 10
GENERAL PUMP
A member of the Interpump Group
LH SERIES
Should excessive scaling inside the fluid end hinder the
valve extraction open one of the two lateral inlet ports,
remove the three plugs, Fig. 15, insert our special tool
p/n F200030090 (or a corresponding one) and push the
valve unit out as shown in Fig. 15.
Check the valve components for wear and replace where
necessary. Every time valves are inspected, all
o-rings and valve covers should be replaced.
Reassemble the valve units and fit them
back in the fluid end. Valve cover screws
should be tightened with a torque wrench
set for 86.7 ft. lbs.
Page 11
GENERAL PUMP
A member of the Interpump Group
11.3 Pumping unit maintenance
The only maintenance operation required for the pumping
unit is to periodically check the amount of water
drained out by the pump through the hole
provided in the lower cover (Fig 6, page 9).
It clearly shows the pressure packing state
of
wear;
replace
them
if
water
dripping
becomes continuous and not intermittent.
LH SERIES
For inspecting the pumping unit, remove the head by
loosening the eight head screws (1, Fig. 16).
Remove the upper cover by loosening the four screws
(1, Fig. 17).
Push the plungers forward by rotating the crankshaft,
then introduce our tool p/n F200030060 (or equivalent)
(1, Fig. 19) in between the piston guide and the cylinder.
With the tool in place, rotate the crankshaft until the
cylinder is pushed out together with the plungers
(Fig. 23). Repeat the operation for each pumping unit.
Loosen and remove the plunger screws (1, Fig. 18).
Page 12
GENERAL PUMP
A member of the Interpump Group
Disassemble the packing support from the cylinder by
means of a pin key (1, Fig. 20).
LH SERIES
In order to fit the new scraper in place, shape it manually
as shown in Fig. 22. VERY IMPORTANT! The scraper is
provided with an internal lip which performs the correct
scraping effect only if oriented toward the fluid end. See
window inside Fig. 22.
Before reassembling the pumping unit carefully clean
the pressure packing seat in the cylinders, fit in place the
packing ring (1, Fig. 23) and then the pressure packings
(2, Fig. 19). A little bit of grease helps sliding the
packings
into
the
packing
support.
Pressure packings and o-rings should always be
replaced at every disassembling of the pumping unit.
Remove the scraper (1, Fig. 21) and o-ring (2, Fig 22)
from the packing support.
Page 13
GENERAL PUMP
A member of the Interpump Group
Set up the complete package without tightening the
packing support (1, Fig. 24) but making sure that the
pressure packings snap in place.
LH SERIES
Fit the pumping units back in the pump crankcase
(1, Fig. 26).
Tighten the plunger screws with a torque
wrench set for 72 ft. lbs. Mount the head
back in place and tighten the eight head
screws with a torque wrench set for 260 ft.
lbs.
For the correct load of the pressure packings proceed
as follows:
- Fit the plunger in the pumping unit (1, Fig. 25)
- Mark the position of any one of the 8 holes of the
packing support referring at the cylinder (see arrows
(Fig. 25).
- Tighten the packing support 1/8 of a complete turn
(45 degrees) or of the distance of one hole (see
arrows Fig. 26).
Page 14
GENERAL PUMP
A member of the Interpump Group
12. SCREW CALIBRATION
Screw calibration is to be carried out by
means of a torque wrench only:
DESCRIPTION
Ft. Lbs.
Head Bolts
260.3
Connecting Rod
Screws
54.2
Valve cover
screws
Plunger bolts
N-m
Kgm.
353
36
86.7
117.6
72.3
98
13. MAINTENANCE TOOLS
73.5
12
10
7.5
The following tools are designed to
facilitate mounting and dismounting
operations of some pump components:
For disassembling:
-packing support extractor
-valve extractor
F200030060
LH SERIES
15. PRECAUTIONS AGAINST FREEZING
In the risk of freezing the following
precautions should be taken:
-
-
After use drain the entire suction and delivery lines
(filter included) by means of discharging devices,
provided and positioned specifically for this purpose
along the lowest point of the lines.
Run the pump only for a few seconds in order to
drain the water collected inside the fluid end.
Or when applicable
- Add a recommended amount of anti-freeze into the
water tank and run the pump until the anti-freeze
works all through the system.
F200030090
14. PUMP STOPPED FOR LONG TIME
If a pump is frozen or appears frozen ON NO ACCOUNT
SHOULD THE PUMP BE OPERATED until the entire
system has been thawed out.
Before starting the pump for the very first
time after a long period from the date of
shipment check for the correct oil level,
check the valves as indicated in chapter
11 and then comply with the starting
procedures indicated in chapter 10. When
a long inactivity is scheduled drain the
entire suction and delivery line and then
run the pump dry only for a few seconds
in order to drain out the water collected
inside the fluid end.
Page 15
GENERAL PUMP
A member of the Interpump Group
16. EXPLODED VIEW AND PARTS LIST
LH SERIES
Page 16
GENERAL PUMP
Item
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
53
54
55
Part #
Description
F010100070
Left fearing support
F881010133
F030000010
F881010132
F871121152
F063400280
F871131102
F030000020
F811111017
F871125154
F871115152
F040400050
F080600030
F872043008
F821203006
F801053012
F872043002
F801057002
F063400240
F080600010
F060100160
F881010116
F801054027
F872026003
F030000030
F080600020
F040400030
F801056002
F040400070
F881080026
F871121154
F063400300
F881010130
F811101019
F031000020
F031000010
F061000000
F031000000
F872097013
F052000020
F052000050
F052000160
F063400310
F010100080
F052000000
F052000030
F052000140
F881010003
F050000060
F052000010
F052000040
F052000150
F034000000
F035000070
F872067006
F023300000
F002000000
F250000030
F250001070
F872142015
F071000050
A member of the Interpump Group
QTY.
O-ring, Ø 183.82 x 2.62
2
1
Bearing bushing retainer flange
2
O-ring, Ø 152.07 x 2.62
2
Screw, M8 x 20
23
Screw, M12 x 25
8
Bearing cover
2
Bearing bushing
Item
56
57
58
59
60
61
Bearing
12
Lower cover
1
Screw, M6 x 14
14
Lower cover gasket
1
Aluminum washer Ø 1”
Plug G1”
Oil level indicator G 1”
Aluminum washer, Ø 1/2”
2
66
2
Back cover
Back cover gasket
O-ring, Ø 29.82 x 2.62
1
70
1
Eye bolt, M16
2
Eye bolt spacer
2-4
Upper cover gasket
1
Upper cover
1
Venting plug G 1/2”
1
Crankshaft end cap
1
Oil seal, Ø 55 x 75 x 10
2
Screw, M8 x 30
8
Left bearing cover
1
O-ring, Ø 94.92 x 2.62
2
Bearing
4
Internal bearing spacer
2
External bearing spacer
2
Lubricating bushing
2
Lubricating cone
2
Pinion key
67
68
1
Oil filling plug G1”
65
1
1
Crankcase
63
64
5
Magnetic plug, G 1/2”
62
2
2
69
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
1
Pinion, 1900 RPM (Z18)
1
Right bearing cover
1
Right bearing support
87
1
Gear, 1900 RPM (Z61, left toothing)
1
O-ring, Ø 8.73 x 1.78
2
Crankshaft
88
1
Gear, 1750 RPM (Z60, right toothing)
1
Gear, 1900 RPM (Z61, right toothing)
1
Connecting rod pin
3
Connecting rod screw
89
3
Crankshaft pin
2
Connecting rod assembly
3
Piston assembly
90
3
Item
62-85-88-90
17-68-69-74-75-92
1-4-13-17-20-22-26-30-33-44
49-54-56-57-62-68-69-74-75
80-85-88-90-92
F871135520
F871135514
F208005230
F871245356
F871135152
F063200030
F063200040
F881112003
F881011252
F021200280
F090200050
F082200060
F205000110
F881011168
F881011161
F021200260
F090200040
F082200050
F081200060
F872041300
680115
F871151168
F064100200
F084000010
F881011253
F062200090
F062200100
F062200130
F031200100
F031200110
F031200230
F881020011
F881020012
F881020016
F022300210
F022300220
F022300250
F881061015
F881061017
F881061019
91
92
REPAIR KITS
F872040004
F881061018
3
Wrist pin Ø 35
F024200290
F022300240
3
Retainer pin Ø 5 x 36
F024200260
F022300230
6
Brass bearing
F024200250
F881020015
6
Lock washer, Ø 12
F041200010
F881020014
1
Gear, 1500 RPM (Z59, right toothing)
F030000070
F031200220
1
Gear 1750 RPM (Z60, left toothing)
F036400420
F031200210
1
Gear, 1500 RPM (Z59, left toothing)
O-ring, Ø 72.69 x 2.62
F062200120
1
Pinion, 1750 RPM (Z19)
F881010128
F062200110
1
Pinion, 1500 RPM (Z20)
Description
F881081001
F024200280
2
Screw, M10 x 30
Part #
F024200270
2
LH40
F1204
LH45
F1205
LH50
F1206
F1195
LH55
F1207
LH60
F1208
F1209
F1210
F1211
F1212
F1213
LH SERIES
F881061021
F881110127
F010500290
Oil seal, Ø 35 x 47 x 8.5, Spec
Piston oil seal cover
Wiper bushing
Wiper
Plunger, LH40
Plunger, LH45
Plunger LH50
Plunger, LH55
Plunger, LH60
Washer, Ø 14 Spec.
Screw, M14 x 160, LH40-45
Screw, M14 x 100, LH50-55-60
Valve assembly
Screw, M10 x 20
QTY.
3
3
3
3
3
3
3
3
3
3
3
3
3
3
6
Screw, M14 x 40
12
Valve cover, G 1/4”
1
Valve cover
Antiextrusion ring
O-ring, v 70 x 4 Spec.
Delivery valve guide
Delivery valve spring
Delivery valve poppet
Delivery valve seat
O-ring, Ø 72 x 3 Spec.
O-ring, Ø 56 x 3 Spec.
Suction valve guide
Suction valve spring
Suction valve poppet
Suction valve seat
Copper washer, Ø 1/4”
Plug, G 1/4”
Screw, M20 x 160
Manifold
Plug, G 1/2”, Nickel
O-ring, Ø 72 x 4 Spec.
Cylinder LH40
Cylinder, LH45
Cylinder, LH50
Cylinder, LH55
Cylinder, LH60
Packing ring, LH40
Packing ring, LH45
Packing ring, LH50
Packing ring, LH55
Packing ring, LH60
Pressure packing, LH40
Pressure packing, LH45
Pressure pcaking, LH50
Pressure pcaking, LH55
Pressure packing, LH60
Packing support, LH40
Packing support, LH45
Packing support, LH50
Packing support, LH55
Packing support, LH60
Scraper, LH40
Scraper LH45
Scraper, LH50
Scraper, LH55
Scraper, LH60
Antiextrusion ring
2
3
3
3
3
3
3
3
6
3
3
3
3
5
5
8
1
3
3
3
3
3
3
3
3
3
3
3
3
6
6
6
6
6
3
3
3
3
3
3
3
3
3
3
3
6
Page 17
GENERAL PUMP
A member of the Interpump Group
LH SERIES
Page 18
GENERAL PUMP
Item Part #
1
F881010133
3
F030000010
2
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
53
54
55
56
57
58
F010100070
F881010132
F871121152
F063400280
F871131102
F030000020
F811111017
F871125154
F871115152
F040400050
F080600030
F872043008
F821203006
F801053012
F872043002
F801057002
F063400240
F080600010
F060100160
F881010116
F801054027
F872026003
F030000030
F080600020
F040400030
F801056002
F040400070
F881080026
F871121154
F036400300
F881010130
F811101019
F031000020
F031000010
F061000000
F031000000
F872097013
F052000020
F052000050
F052000160
F063400310
F010100080
F052000000
F052000030
F052000140
F881010003
F050000060
F052000010
F052000040
F052000150
F034000000
F035000070
F872067006
F023300000
F002000000
F250000030
F250001070
F872142015
F071000050
F881081001
F881010128
F063400420
REPAIR KITS
A member of the Interpump Group
Description
QTY.
O-ring, Ø 183.82 x 2.62
2
Left bearing support
1
Bearing bushing retainer flange
2
O-ring, Ø 152.07 x 2.62
2
Screw, M8 x 20
23
Screw, M12 x 25
8
Bearing cover
Item Part #
59
F030000070
61
F024201120
60
F024201150
2
62
Screw, M10 x 30
12
64
Lower cover
1
65
2
67
Bearing
2
Screw, M6 x 14
14
Lower cover gasket
1
Aluminum washer, Ø 1”
Plug, G 1”
2
Oil level indicator, G 1”
2
Aluminum washer, G 1/2”
5
Magnetic plug, G 1/2”
2
Back cover
1
Back cover gasket
Crankcase
O-ring, Ø 29.82 x 2.62
Oil filling plug, G1”
Eye bolt spacer
Upper cover
Oil seal, Ø 55 x 75 x 10
Left bearing cover
Bearing
External bearing spacer
8
79
2
80
2
82
2
Pinion key
1
Pinion, 1500 RPM (Z20)
1
Pinion, 1750 RPM (Z19)
77
78
2
Lubricating cone
75
1
2
Lubricating bushing
81
83
84
85
86
1
Right bearing support
1
Gear, 1500 RPM (Z59, left toothing)
1
Gear, 1750 RPM (Z60, left toothing)
87
2
Crankshaft
1
Gear, 1500 RPM (Z59, right toothing)
1
Gear, 1750 RPM (Z60, right toothing)
88
3
Connecting rod screw
6
Lock washer, Ø 12
6
Brass bearing
89
3
Piston assembly
3
Retainer pin, Ø 5 x 36
3
Wrist pin, Ø 35
90
3
Oil seal cover
1
F881011252
F021200280
F090200070
F090200050
F082200080
F082200060
F205000120
F205000110
F881011168
F881011161
F021200260
F090200060
F090200040
F082200070
F082200050
F081200080
F081200060
F881110126
F084200470
F035000090
F064200180
F821203128
F881011253
F062200140
F062200150
F062200270
F031200150
F031200160
F031200310
F881020011
F881020012
F881020016
F022300260
F022300270
F022300480
F881061015
F881061017
F881061019
2
O-ring, Ø 72.69 x 69 x 2.62
F881112003
F881061018
3
Oil seal, Ø 35 x 47 x 8.5 SP
F063200070
F022300470
2
Connecting rod assembly
F063200070
F022300280
3
Crankshaft pin
F871125601
F881020015
1
Connecting rod pin
F208005230
F881020014
1
Gear, 1900 RPM (Z61, right toothing)
F208006210
F031200300
1
O-ring, Ø 8.73 x 1.78
F035200130
F031200240
1
Gear, 1900 RPM (Z61, left toothing)
F881010057
F062200260
1
Right bearing cover
F024201160
F062200160
1
Pinion, 1900 RPM (Z18)
1-4-13-14-17-20-22-26-30-33
44-49-54-56-57-62-68-69-74-75
80-85-88-90-91-92
76
4
Internal bearing spacer
Item
62-85-88-90
68-69-74-75-91-92
1
1
O-ring, Ø 94.92 x 2.62
71
74
2
Screw, M8 x 30
70
2
1
Crankshaft end cap
69
73
1
Venting plug, G1/2”
68
1
2-4
Upper cover gasket
66
72
1
Eye bolt, M16
63
1
1
F024201130
F024201140
2
Bearing bushing
F041200010
91
92
LHZ/N40
F1216
LHZ/N45
F1217
LHZ/n50
F1218
F1221
LHZ/N55
F1219
LHZ/N60
F1220
F1222
F1223
F1224
F1225
F1226
F881061021
F881110127
F010500290
LH SERIES
Description
Bushing
Flinger washer
Plunger, LHZ/N40
Plunger, LHZ/N45
Plunger, LHZ/N50
Plunger, LHZ/N55
Plunger, LHZ/N60
O-ring, Ø 19 x 2
Plunger screw
Valve assembly, LHZ
Valve assembly, LHN
Screw, M10 x 16
QTY.
3
3
3
3
3
3
3
3
3
3
3
6
Screw, M14 x 40 Spec.
12
Antiextrusion ring
3
Valve cover
O-ring, Ø 70 x 4 Spec.
Delivery valve guide
Delivery valve spring, LHZ
Delivery valve spring, LHN
Delivery valve poppet, LHZ
Delivery valve poppet, LHN
Delivery valve seat, LHZ
Delivery valve seat, LHN
O-ring, Ø 72 x 3 Spec.
O-ring, Ø 56 x 3 Spec.
Suction valve guide
Suction valve spring, LHZ
Suction valve spring, LHN
Suction valve poppet, LHZ
Suction valve poppet, LHN
Suction valve seat, LHZ
Suction valve seat, LHN
Washer, Ø 3/8”
Plug, G 3/8”
Screw, M20 x 160 Spec.
Manifold
Plug, G 1/2”
O-ring, Ø 72 x 4 Spec.
Cylinder, LHZ/N40
Cylinder, LHZ/N45
Cylinder, LHZ/N50
Cylinder, LHZ/N55
Cylinder LHZ/N60
Packing ring, LHZ/N40
Packing ring, LHZ/N45
Packing ring, LHZ/N50
Packing ring, LHZ/N55
Packing ring, LHZ/N60
Pressure packing, LHZ/N40
Pressure packing, LHZ/N45
Pressure packing, LHZ/N50
Pressure packing, LHZ/N55
Pressure packing, LHZ/N60
Packing support, LHZ/N40
Packing support, LHZ/N45
Packing support, LHZ/N50
Packing support, LHZ/N55
Packing support, LHZ/N60
Scraper, LHZ/N40
Scraper, LHZ/N45
Scraper, LHZ/N50
Scraper, LHZ/N55
Scraper, LHZ/N60
Washer, Ø 1/2”
Antiextrusion ring
3
3
3
3
3
3
3
3
3
3
6
3
3
3
3
3
3
3
5
5
8
1
3
3
3
3
3
3
3
3
3
3
3
3
6
6
6
6
6
3
3
3
3
3
3
3
3
3
3
3
6
Page 19
GENERAL PUMP
A member of the Interpump Group
17. TROUBLE SHOOTING
LH SERIES
THE PUMP DOES NOT PRODUCE ANY
NOISE: the pump is not primed
and is running dry!
- No water in the inlet line
- The valves are blocked
- The pressure line is closed and does
not allow the air to get out the fluid
end.
INSUFFICIENT PUMP PRESSURE:
- The nozzle is (or has become) too large.
- RPM are less than rated
- Excessive leakage from pressure
packings
- Excessive amount of water by-passed
by the pressure regulating valve or
faulty valve operation.
- Worn out valves.
THE PUMP KNOCKS:
- Air suction.
- Insufficient feeding:
- bends, elbows and fittings along the
suction line throttle the amount of
water which passed through.
- too small inlet filter.
- dirty inlet filter.
- the feeding pump, where provided is
not of the suitable type or provides
insufficient pressure or volume.
- The pump is not primed due to
insufficient feeding or the delivery line
is closed during start up.
- The pump is not primed because some
valves are stuck (i.e pump inactivity
for long time).
- Jammed or worn out valves.
- Worn out pressure packings.
- The pressure regulating valve does not
work properly.
- Clearance in the drive system.
- RPM are higher than rated.
EXCESSIVE WATER LEAKAGE FROM
THE PUMP:
- Pressure packing are excessively worn
out (due to normal wear or excessive
cavitation).
- Worn out plungers
THE PUMP DOES NOT DELIVER THE
RATED VOLUME:
- Insufficient feeding (due to the cause
listed above).
- RPM are less than rated.
- Excessive amount of water by-passed
by the pressure regulating valve.
- Worn out valves
- Excessive leakage from pressure
packings
OVERHEATED PUMP:
- The direction of rotation is not correct.
- Pump is overloaded (pressure or RPM
over the rated values).
- The oil level is too low or the oil is not of
a suitable type or fully used
- Water in the oil
- Excessive belt tension or incorrect
alignment of the joint (where provided).
- Excessive inclination of the pump
during operation.
PIPE VIBRATIONS OR KNOCKING:
- Air suction.
- The pressure regulating valve does not
work properly.
- The by-pass line is undersized.
- Jammed up valves.
- Drive transmission motion is irregular.
Page 20
GENERAL PUMP
MAINTENANCE LOG
A member of the Interpump Group
LH SERIES
HOURS & DATE
OIL CHANGE
GREASE
PACKING
REPLACEMENT
PLUNGER
REPLACEMENT
VALVE
REPLACEMENT
GP Companies, Inc.
1174 Northland Drive
Mendota Heights, MN 55120
Phone:651.686.2199 Fax: 800.535.1745
www.generalpump.com email: sales@gpcompanies.com
Ref 300018 Rev.C
08/07
Page 20
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