AIRLESSCO | ALLPRO 1200G | Specifications | AIRLESSCO ALLPRO 1200G Specifications

SERVICE & OPERATION MANUAL
Airlessco SL6200
ALLPRO 1200G
Gasoline Powered
Airless Paint Sprayers
BUILT TO PERFORM...
BUILT TO LAST
001-553 OCT07
TABLE OF CONTENTS
Introduction
Flushing
How to Flush
Setting Up
Starting Up
Warnings
PRESSURE RELIEF PROCEDURE
Spray Technique
Airless Spray Gun Operation
REV-TIP™ Selection Chart
3
3
4
5
5&6
6,7,8 & 9
8
10 & 11
12
13
Regular Maintenance
Oil and Lubrication
Field Troubleshooting
Servicing Fluid Pump
Servicing Inlet and Outlet Valves
V-Packing Replacement
Ball Valve
Troubleshooting - Clutch
Replacement of Electrical Control Board
Pressure Calibration of Elec. Board
Clutch Replacement - Hi-Boy
Clutch Replacement - Lo-Boy
Clutch Assembly Parts Lists
Engine Assembly Parts Lists
Paint System Assembly Parts List- Hi-Boy
Paint System Assembly Parts List- Lo-Boy
Manifold Filter
Complete Sprayer Parts List - Hi-Boy
Power Unit Assembly - Lo-Boy
Frame Assembly -Lo-Boy
Suction Assembly
Accessories
14
14
14 & 15
15
16
17, 18
19
19
20
20
21
22, 23
23
24
25
26
27
28 & 29
30
31
31
32
Manufactured by: AIRLESSCO BY DUROTECH CO
5397 N. COMMERCE AVE. MOORPARK, CA. 93021
TELEPHONE: 805-523-0211 FAX: 805-523-1063
Copyright © 2006, All rights reserved. Subject to change without notice.
2
INTRODUCTION
This gas powered airless sprayer is built tough
to take the day after day high volume demands
of painting contractors and equipment rental
companies. The SL "Slow Stroker" paint pump
features a large, severe duty, slow-stroking
stainless steel piston. Airlessco's patented
stationary triple-life packing system allows
external adjusment of upper & lower packings.
This SL6200 airless pump is "Built to
Perform...Built to Last" using the latest
technology in pump design for smooth operation
and low maintenance.
SPECIFICATIONS
AIRLESSCO SL6200, ALLPRO 1200G
Pressure
0 - 3000 psi
Output
1.5 gpm, 5.7 Ltr./Min.
Tip size
1 gun up to 0.041"
2 guns up to 0.029"
Engine
5.5 HP Honda
IMPORTANT WARNING !!
HANDLE THIS UNIT AS YOU WOULD A LOADED FIREARM!
High Pressure Spray Can Cause Extremely Serious Injury.
OBSERVE ALL WARNINGS!
Before operating this unit, read and follow all safety warnings and instructions
related to the usage of this equipment. READ and LEARN the warnings on pages
4, 5, 6, & 7 and FOLLOW the Pressure Relief Procedure on Page 6.
All Service Procedures to be performed by an Authorized Airlessco Service Center ONLY.
NO MODIFICATIONS or alterations of any AIRLESSCO Equipment or part is allowed.
FLUSHING - Read Prior to Using Your Sprayer
1. New sprayer
Your unit was factory tested in an anti-freeze
solution which was left in the pump. Before
using oil-base paint, flush with mineral spirits only.
Before using water-base paint flush with
mineral spirits, followed by soapy water, then
a clean water flush.
2. Changing colors
Flush with a compatible solvent such as
mineral spirits or water.
3. Changing from water-base to oil-base paint.
Flush with soapy water, then mineral spirits.
4. Changing from oil-base to water-base paint.
Flush with mineral spirits, followed by soapy
water, then a clean water flush.
5. Storage
Oil-base paint: Flush with mineral spirits.
Water-base paint: Flush with water, then mineral
spirits and leave the pump, hose and gun filled
with mineral spirits.
For longer storage, use mixture of mineral spirits
and motor oil (half & half). Shut off the sprayer,
follow Pressure Relief Procedure on page 6 to
relieve pressure and make sure prime valve is left
open.
6. Start up after storage
Before using water-base paint, flush with soapy
water and then a clean water flush.
When using oil-base paint, flush out the mineral
spirits with the material to be sprayed.
3
HOW TO FLUSH
FIG. 3
FIG. 1
REMOVE
SPRAY
TIP
Choke Lever
FIG. 2
PRESSURE CONTROL
KNOB
Closed
(Pressure)
Fuel Valve
Throttle Lever
FIG. 4
High
Pressure PRIME VALVE &
Low
Pressure
PRESSURE RELIEF
VALVE
Open
(Priming &
Pressure Relief)
1. Be sure the gun safety latch is engaged and there
is no spray tip in the gun. Refer to Fig. 1. Refer to
your separate instruction manual provided with your
gun on its safety features and how to engage safety
latch.
2. Pour enough clean, compatible solvent into a large,
empty metal pail to fill the pump and hoses.
3. Place the suction tube into the pail or place the pail
under the pump.
4. Turn the pressure control knob to low pressure. Refer
to Fig. 2.
5. Open the prime valve to the open - "Priming Position".
This will allow an easy start. Refer to Fig. 2.
6. Turn the engine ON/OFF switch to ON.
7. Move the choke toward the closed position as per Fig.3.
8. Move the throttle lever slightly to the left as per Fig.3.
9. Turn the fuel valve ON as per Fig. 3. Pull the start rope.
Pull the engine over against compression stroke and
then let the rope rewind slowly into the starter. Pull
firmly and rapidly to start the engine. Do NOT drop the
rope. Hold on to the handle while rewinding, or the rope
may rewind improperly and jam the assembly. If the
engine does not start, open the choke a little more. If
the engine floods, open the choke all the way and continue cranking.
10. After the engine is warm, gradually close the choke
lever, increase the RPM of engine slightly by moving
throttle to the left. Close the prime valve.
Refer to Fig. 2
11.
. Point the gun into the metal pail and hold a metal part
of the gun firmly against the pail Refer to fig. 4
4
MAINTAIN FIRM
METAL TO METAL
CONTACT BETWEEN
GUN AND CONTAINER
WARNING: To reduce the risk of static sparking,
which can cause fire or explosion, always hold
a metal part of the gun firmly against the metal
pail when flushing. This also reduces splashing.
Refer to Fig.4.
12. Disengage the gun safety latch and squeeze the gun
trigger. At the same time, slowly turn the pressure control knob clockwise just enough to move liquid at low
pressure.
13. Allow the pump to operate until clean solvent comes
from the gun.
14. Release the trigger and engage the gun safety latch.
15. If you are going to start spraying, place the pump or
suction tube into the supply container. Release the
gun safety latch and trigger the gun into another empty,
metal container, holding a metal part of the gun firmly
against the metal pail (Fig. 4), forcing the solvent
from the pump and hose. When paint starts coming
from gun, turn pressure control knob to minimum pressure, place prime valve in prime (open) position and
engage the gun safety latch.
16. If you are going to store the sprayer, remove the suction tube or pump from the solvent pail force the solvent from the pump and hose. Engage the gun safety
latch and refer to the "Storage" Procedure on page 1.
Step 5.
17. Whenever you shut off the sprayer follow the
Pressure Relief Procedure warning on page 8.
SETTING UP
1. Connect the hose and gun
a. Remove the plastic cap plug from the outlet and
screw a conductive or grounded 3000 psi
spray hose onto fluid outlet.
b. Connect an airless spray gun to the other end of the
hose, but do not install the spray tip yet!
NOTE: Do not use thread sealer on swivel unions as they
are made to self seal.
NOTE: The first 50' of hose should always be 3/8".
2. Fill the Packing Nut/Wet Cup
Fill the Packing Nut/Wet Cup 1/3 full with Airlessco
Throat Seal Oil (TSO). Fig 5 below.
FIG. 5
3. Check the Engine Oil Level
a. Unscrew the oil fill plug. The dipstick is attached to
the plug.
b. Without threading the plug into place, check to be
sure the oil is up to the top mark on the dipstick.
c. If oil is needed, refer to engine manual.
4. Fill the Fuel Tank
WARNING: Fuel spilled on a hot surface can
cause a fire or explosion and cause serious
bodily injury and property damage. Always
shut off the engine and let it cool before filling the tank, and carefully follow steps a - c
below being sure not to spill any fuel.
a. Close the fuel shutoff valve.
b. Use only clean, fresh, well-known brands of
unleaded regular grade gasoline.
c. Remove the fuel cap and fill tank. Be sure the air
vent in the fill cap is not plugged so fuel can flow to
the carburetor, then replace the cap.
STARTING UP
1. Learn the controls
Pressure Control Knob - used to adjust pressure only.
Turn clockwise to increase pressure and counterclockwise to decrease pressure. (See Fig. 6)
Prime & Pressure Relief Valve - Turn to OPEN position
(see Fig. 7) to prime the pump. Turn to the CLOSED
position to spray.
FOLLOW "PRESSURE RELIEF PROCEDURES"
ON PAGE 6 WHENEVER YOU:
- are instructed to relieve pressure
- stop spraying
- checking or servicing any of the system
equipment.
- or installing or cleaning the spray tip.
Handle spray system as you would a loaded firearm!
CAUTION: Do not start engine without fluid
pump having enough fluid so that it can be
primed. Running fluid pump dry will decrease
life of the pumps packings.
2. Prepare the Material
a. Prepare the material according to the material
manufacturer's recommendations.
b. Place pump or suction tube into material container.
FIG. 6
PRESSURE
CONTROL
KNOB
Low
Pressure
FIG. 7
Closed (Pressure)
High
Pressure
PRIME VALVE &
PRESSURE RELIEF
VALVE
Open (Priming
& Pressure Relief)
3. Starting the Sprayer (see Fig. 6 & 7 above)
a. Prime Valve must be open - priming position.
b. Pressure Control Knob must be in low pressure.
c. Follow the procedure under "How to Flush", page 4
Steps 6 through 12.
WARNING: To stop the unit in an emergency or
before performing any service or maintenance
procedure follow the Pressure Relief Procedure on page 6 to relieve the fluid pressure.
5
STARTING UP - continued
4. Prime the Pump
a. Allow pump to operate until paint comes from gun.
b. Release the trigger and engage the gun safety latch.
c. Turn Prime Valve OPEN to the prime position
ensuring the pressure is released from the system.
d. Turn Pressure Control Knob to minimum
pressure.
e. Install spray tip onto gun.
f. Close the prime valve to the pressure position.
g. Turn the pressure control knob to desired spray
pressure.
h. Disengage the gun safety lock and you are ready
to start spraying.
WARNING: If you spray into the paint bucket,
always use the lowest spray pressure and
maintain firm metal to metal contact between
gun and container. See page 6, Fig 4.
5. Adjusting the Pressure
a. Turn the Pressure Control Knob clockwise to
increase pressure and counterclockwise to
decrease pressure.
b. Always use the lowest pressure necessary to
completely atomize the material.
CAUTION - Operating the sprayer at higher
pressure than needed wastes material, causes
early tip wear and shortens sprayer life.
c. If more coverage is needed use a larger tip rather
than increasing the pressure.
d. Check the spray pattern. The tip size and angle
determines the pattern width and flow rate.
6. Reducing Clutch Wear
a. The first 50 feet of airless spray hose should be 3/8",
the larger diameter works as a pulsation damper and
saves unnecessary cycling of the clutch. A minimum
of 100 feet of hose should be used.
b. Adjust the Engine Speed and Pump Pressure.
First set the throttle lever to the maximum RPM
setting (fully left). Trigger the gun onto a test paper
to check the spray pattern and atomization. Adjust
the Pressure Control Knob until you get a good
pattern. Reduce RPM of engine to support pressure
without laboring engines.
7. Cleaning a Clogged Tip
IMPORTANT WARNING
Always follow the Pressure Relief Procedure on page 8
before perfoming any service or maintenance procedure.
WARNING: Never hold your body, fin gers,
or hand in a rag in front of the spray tip when
cleaning or checking it for a cleared tip. Always
point the gun toward the front or into a waste
container when checking to see if the tip is
cleared or when using a self-cleaning tip.
a. Follow the Pressure Relief Procedure on page 8.
b. Clean the front of the tip frequently (with toothbrush
only) during the day to keep material from building up
and clogging the tip.
c. To clean and clear a tip if it clogs, refer to the separate
instruction manual received with your gun and nozzle.
There is an easy way to keep the outside of the tip clean from
material build-up:
Every time you stop spraying, for even a minute, lock the
gun and submerge the gun into a small bucket of thinner
comparable with the material sprayed. Thinner will dissolve
the build up of paint on the outside of tip, tip guard and gun
much more effectively than if the paint dries out completely.
WARNING: Clogged standard flat tip - clean only
after the tip is removed from the gun. Follow the
Pressure Relief Procedure Warning on Page 6.
8. When Shutting Off the Sprayer
a. Whenever stop spraying, even for a short break, follow the Pressure Relief Procedure Warning on page6.
b. Clean the tip and gun as recommended by your
separate gun instruction manual.
c. Flush the sprayer at the end of each work day if the
material you are spraying is waterbased, or if it could
harden in the sprayer overnight. See "Flushing" page
1 and 2. Use a compatible solvent to flush, then fill
the pump and hoses with an oil based sovent such as
mineral spirits.
d. For long term shutdown or storage, refer to page 1.
WARNING - Be sure to relieve pressure in the
pump after filling with mineral spirits.
WARNINGS
MEDICAL ALERT - Airless Spray
Wounds
If any fluid appears to penetrate your skin, get
EMERGENCY MEDICAL CARE AT ONCE. DO
NOT TREAT AS A SIMPLE CUT
CUT. Tell the doctor
exactly what fluid was injected. Have him read
6
NOTE TO PHYSICIAN: Injection in the skin is
a traumatic injury. It is important to treat the injury
surgically as soon as possible. DO NOT DELAY
treatment to research toxicity. Toxicity is a concern
with some exotic coatings injected directly into the
blood stream. Consultation with a plastic surgeon or
reconstructive hand surgeon may be advisable.
WARNINGS
HIGH PRESSURE SPRAY CAN CAUSE EXTREMELY SERIOUS INJURY.
OBSERVE ALL WARNINGS. THIS SPRAYER FOR PROFESSIONAL USE ONLY.
INJECTION HAZARD
ALWAYS INSPECT SPRAYING AREA
Fluids under high pressure from spray or leaks can
penetrate the skin and cause extremely serious injury,
including the need for amputation.
NEVER point the spray gun at anyone or any part of the
body.
NEVER put hand or fingers over the spray tip. Do not use
rag or other materials over your fingers. Paint will penetrate
through material and into the hand.
NEVER try to stop or deflect leaks with your hand or body.
ALWAYS have gun tip guard in place when spraying.
ALWAYS lock gun trigger when you stop spraying.
ALWAYS remove tip from the gun to clean it.
NEVER try to "blow back" paint, this is not an air spray
sprayer.
ALWAYS follow the PRESSURE RELIEF PROCEDURE, as
shown on page 8, before cleaning or removing the spray tip
or servicing any system equipment.
Be sure equipment safety devices are operating properly
before each use.
Tighten all fluid connections before each use.
Keep spraying area free from obstructions.
Make sure area has good ventilation to safely remove
vapors and mists.
NEVER keep flammable material in spraying area.
NEVER spray in vicinity of open flame or other sources of
ignition.
Spraying area must be at least 20 ft. away from spray unit.
SPRAY GUN SAFETY
MEDICAL TREATMENT
ALWAYS set safety lock on the gun in "LOCKED" position
when not in use and before servicing or cleaning.
DO NOT remove or modify any part of gun.
ALWAYS REMOVE SPRAY TIP when cleaning. Flush unit
with LOWEST POSSIBLE PRESSURE.
CHECK operation of all gun safety devices before each
use.
Be very careful when removing the spray tip or hose from gun.
A plugged line contains fluid under pressure. If the tip or line
is plugged, follow the PRESSURE RELIEF PROCEDURE
as outlined on page 6.
If any fluid appears to penetrate your skin, get EMERGENCY
CARE AT ONCE. DO NOT TREAT AS A SIMPLE CUT.
TIP GUARD
* Go to an emergency room immediately.
* Tell the doctor you suspect an injection injury.
* Tell him what kind of material you were spraying with and
have him read NOTE TO PHYSICIAN on pg. 6.
GENERAL PRECAUTIONS
NEVER alter equipment in any manner.
NEVER smoke while in spraying area.
NEVER spray highly flammable materials.
NEVER use around children.
NEVER allow another person to use sprayer unless he is
thoroughly instructed on its' safe use and given this operators manual to read.
ALWAYS wear a spray mask, gloves and protective eye
wear while spraying.
ALWAYS ensure fire extinquishing equipment is readily
available and properly maintained.
NEVER LEAVE SPRAYER UNATTENDED WITH
PRESSURE IN THE SYSTEM. FOLLOW PRESSURE
RELIEF PROCEDURES ON PAGE 6.
TOXIC FLUID HAZARD
Hazardous fluid or toxic fumes can cause serious injury or
death if splashed in eyes or on skin, inhaled or swallowed.
Know the hazards of the fluid you are using. Store & dispose
of hazardous fluids according to manufacturer, local, state &
national guidelines.
ALWAYS wear protective eyewear, gloves, clothing
and respirator as recommended by fluid manufacturer.
ALWAYS have the tip guard in place on the spray gun while
spraying. The tip guard alerts you to the injection hazard and
helps prevent accidentally placing your fingers or any part of
your body close to the spray tip.
SPRAY TIP SAFETY
Use extreme caution when cleaning or changing spray tips.
If the spray tip clogs while spraying, engage the gun safety
latch immediately. ALWAYS follow the PRESSURE RELIEF
PROCEDURE before removing the spray tip to clean it.
NEVER wipe off build up around the spray tip.
ALWAYS remove tip & tip guard to clean AFTER
pump is turned off and the pressure is relieved by following
the PRESSURE RELIEF PROCEDURE.
KEEP CLEAR OF MOVING PARTS
Keep clear of moving parts when starting or operating the
sprayer. Do not put your fingers into any openings to avoid
amputation by moving parts or burns on hot parts.
Precaution is the best insurance against an accident.
When starting the engine, maintain a safe distance from
moving parts of the equipment.
Before adjusting or servicing any mechanical part of the
sprayer, follow the PRESSURE RELIEF PROCEDURE on
page 6, and remove the ignition cable from the spark plug to
prevent accidental starting of sprayer.
WARNINGS CONTINUED ON NEXT PAGE.............
7
WARNINGS - Continued
PRESSURE RELIEF PROCEDURE
To avoid possible serious bodily injury, including injection, always follow this procedure whenever the
sprayer is shut off, when checking or servicing it, when installing or changing the tips, whenever you stop
spraying or when you are instructed to relieve the pressure.
1. Engage gun safety latch. Refer to
separate instruction manual provided
with your gun on its safety features
and how to engage safety latch.
2. Turn engine off.
3. Disengage safety latch &
trigger gun to relieve residual
fluid pressure. Hold metal part of the gun in contact
with grounded metal pail.
4. Re-engage gun
safety latch
5. Turn Prime/Pressure Relief Valve
as shown open (priming) to
relieve fluid pressure.
OPEN
Leave prime valve OPEN until you are ready to
spray again.
IF THE SPRAY TIP OR HOSE IS CLOGGED, follow Step 1 through 5 above. Expect paint splashing into the
bucket while relieving pressure during Step 5. If you suspect that pressure hasn't been relieved due to
damaged prime/pressure relief valve or other reason, engage gun safety latch and take your sprayer to an
authorized Airlessco Service Center for service.
Always follow recommended pressure & operating
instructions:
HOSES
Tighten all fluid connections securely before each use.
High pressure fluid can dislodge a loose coupling or allow
high pressure spray to be emitted from the coupling and
result in an injection injury or serious bodily injury.
Use only hose that has a spring guard. The spring guard
helps protect the hose from kinks or other damage which
could result in hose rupture and cause an injection injury.
NEVER use a damaged hose, which can result in hose
failure or rupture and cause in injection injury or other
serious bodily injury or bodily damage. Before each use,
check entire hose for cuts, leaks, abrasion or bulging of
cover, or damage or movement of couplings. If any of
these conditions exist, replace the hose immediately.
Never use tape or any device to try to mend the hose
as it cannot contain the high pressure fluid. NEVER ATTEMPT TO RECOUPLE THE HOSE. High pressure hose
is not recoupleable.
Help prevent damage to the hose by handling and routing carefully. Do not move the sprayer by pulling it with
the hose.
LABELING
8
Keep all labels on the unit clean and readable. Replacement labels are available from manufacturer.
GROUNDING
Ground the sprayer and other components in the system
to reduce the risk of static sparking, fire or explosion
which can result in serious bodily injury and property
damage.
Always ground all of these components:
1. Sprayer: Connect a ground wire and clamp (supplied)
to a true earth ground.
2. Fluid Hose: use only grounded hoses.
3. Spray gun or dispensing valve: grounding is obtained
through connection to a properly grounded fluid hose
and pump.
4. Object being sprayed: according to your local code.
5. All solvent pails used when flushing should only be
metal pails which are conductive.
Once each week, check electrical resistance of hose
(when using multiple hose assemblies, check overall
resistance of unpressurized hose must not exceed 29
megohms (max) for any coupled length or combination
of hose lengths. If hose exceeds these limits, replace it
immediately.
Never exceed 500 Ft. (150 m.) overall combined hose
length to assure electrical continuity.
NOTE: WARNINGS CONTINUE ON NEXT PAGE.
WARNINGS - Continued
AVOID COMPONENT RUPTURE
PREVENT STATIC SPARKED FIRE/ EXPLOSIONS
This sprayer operates at 3000 psi (205 bar). Always
be sure that all components and accessories have a
maximum working pressure of at least 3000 psi to avoid
rupture which can result in serious bodily injury including
injection and property damage.
ALWAYS be sure all equipment and objects being sprayed
are properly grounded. Always ground sprayer, paint bucket
and object being sprayed. See "grounding" on page 8 for
detailed grounding information.
NEVER leave a pressurized sprayer unattended to avoid
accidental operation of it which could result in serious
bodily injury.
ALWAYS follow the PRESSURE RELIEF PROCEDURE
whenever you stop spraying and before adjusting, removing or repairing any part of the sprayer.
NEVER alter or modify any part of the equipment to avoid
possible component rupture which could result in serious
bodily injury and property damage.
NEVER use weak or damaged or non-conductive paint
hose. Do not allow kinking or crushing of hoses or allow it
to vibrate against rough or sharp or hot surfaces. Before
each use, check hoses for damage and wear and ensure
all fluid connections are secure.
REPLACE any damaged hose. NEVER use tape or any
device to mend the hose.
NEVER attempt to stop any leakage in the line or fittings
with your hand or any part of the body. Turn off the unit
and release pressure by following PRESSURE RELIEF
PROCEDURE.
ALWAYS use approved high pressure fittings and replacement parts.
ALWAYS ensure fire extinquishing equipment is readily
available and properly maintained.
WARNING
Do not use halogenated solvents in this system.
The prime valve, 2 gun manifold and most airless
guns have aluminum parts and may ex plode.
Cleaning agents, coatings, paints or adhesives
may contain halogenated hydrocarbon solvents.
DON"T TAKE CHANCES! Consult your material
suppliers to be sure. Some of the most common
of these solvents are: Carbontetrachloride, Chlorobenzene, Dichloroethane, Dichloroethyl Ether,
Ethylbromide, Ethylchloride, Tethrachloethane.
Alternate valves and guns are available if you
need to use these solvents.
Vapors created when spraying can be ignited by sparks.
To reduce the risk of fire, always locate the sprayer at least
20 feet (6 m.) away from the spray area. Do not plug in or
unplug any electrical cords in the spray area, which can
create sparks, when there is any chance of igniting vapors
still in the air. Follow the coating & solvent manufacturers
safety warnings and precautions.
Use only conductive fluid hoses for airless applications. Be
sure gun is grounded through hose connections. Check
ground continuity in hose & equipment. Overall (end to
end) resistance of unpressurized hose must not exceed 29
megohms for any coupled length or combination of hose
length. Use only high pressure airless hoses with static wire
approved for 3000 psi.
FLUSHING
Reduce the risk of injection injury, static sparking or
splashing by following the specific cleaning procedure
on page 4 and 9.
ALWAYS follow the PRESSURE RELIEF PROCEDURE
on page 8.
ALWAYS remove the spray tip before flushing. Hold a
metal part of the gun firmly to the side of a metal pail and
use the lowest possible fluid pressure during flushing.
NEVER use cleaning solvents with flash points below 140
degress F. Some of these are: acetone, benzene, ether,
gasoline, naphtha. Consult your supplier to be sure.
GAS ENGINE PRECAUTIONS
Locate unit 25 feet away from spray area in well ventilated area. NEVER operate in closed building unless
exhaust is piped outside. NEVER allow hose to lay
against engine mufflers or hot parts. NEVER refill
fuel tank while engine is hot or is running.
Important: United States Government safety standards
have been adopted under the Occupational Safety &
Health Act. These standards, particularly the General
Standards, Part 1910, & the Construction Standards,
part 1926 should be consulted.
WHEN SPRAYING & CLEANING WITH FLAMMABLE PAINTS OR THINNERS:
1. When spraying with flammable liquids, the unit must be located a minimum of 25 feet away from the spraying
area in a well ventilated area. Ventilation must be sufficient enough to prevent the accumulation of vapors.
2. To eliminate electrostatic discharge, ground the spray unit, paint bucket and spraying object. Use only high
pressure airless hoses approved for 3000 psi which is conductive.
3. Remove spray tip before cleaning gun and hose. Make contact of gun with bucket and spray without the tip in
a well ventilated area, into the grounded steel bucket.
4. Never use high pressure in the cleaning process. USE MINIMUM PRESSURE.
5. Do not smoke in spraying/cleaning area.
9
SPRAY TECHNIQUE
Good Spray Gun Technique is at the core of any spray
paint operation. Operator skill and efficiency is as
important as good equipment and good paint. Good
spray technique is a skill that can be quickly learned by
following these simple instructions.
RIGHT
If you are not familiar with spraying techniques,
we recommend that you study this section of
your manual and practice the proper technique
on pieces of cardboard or a suitable surface.
WRONG
Hold the spray gun 12 - 15 inches away from the work surface and keep it perpendicular (straight) to
the surface. Move the spray gun parallel to the work and at a right angle to the surface.
KEEP EVEN DISTANCE TO SURFACE
RIGHT
Move the gun at a steady rate in order to apply a
good coverage. The wet coat should be just under the
thickness at which a run or sag will occur. slow gun
movement or gun held too close will result in an overly
wet or thick wet or thick coat coverage that is likely to
run or sag.
Do not wave the spray gun. This waving is called
arching. Instead, hold the spray gun at a 12 to 15 inch
distance perpendicular from the work.
10
WRONG
The closer the spray gun is held to the work, the thicker
the paint is deposited and the faster the gun must be
moved to prevent sags and runs. Holding the gun too
far from the work will cause excessive fog, overspray,
and a thin and grainy coat.
SPRAY TECHNIQUE - Continued
TOTAL SPRAYGUN MOVEMENT - arm movement - full sweep
TRIGGER
POINT
TRIGGER POINT
e
t Strok
al Pain
tu
The Ac
oke
aint Str
tual P
The Ac
It is important to "trigger" the gun after gun movement
(arm movement) has started and release trigger (shut
gun off) before gun movement ends. Gun movement
is always longer than actual paint (spray) stroke. In
that manner, even blending and uniform paint coat
thickness is achieved over the entire surface. When
the gun is in motion as the trigger is pulled, it deposits
an even amount of paint.
Overlap the previous pass by half the width of the
spray pattern. Aim at the bottom of the previous
pass.
TAILING
Spray with uniform strokes from left to right and from
right to left, holding stroke speed, distance, lapping,
and triggering as uniform as possible.
GOOD PATTERN
Adjust pressure control knob so that paint is completely
atomized from the spray gun. Insufficient pressure will
result in "tailing".
POOR PATTERN
FOR EVEN PAINT COAT OVERLAP HALF
THE WIDTH OF EACH PAINT STROKE.
FOG, OVERSPRAY
Too much pressure will result in excess fog and
overspray, excessive tip wear, and increased sprayer
wear and tear.
GOOD PATTERN
INSIDE CORNER
Always use the lowest pressure possible to obtain
desirable results.
Test the spray pattern on a piece of cardboard or other
surface.
OUTSIDE CORNER
"Inside" and "outside" corners can be sprayed.
Aim the spray gun toward the center of the corner. The
spray pattern is divided in half, and the edges of the
spray pattern on both walls are the same.
11
AIRLESS SPRAY GUN OPERATION
DEFECTS
CAUSE
CORRECTION
Coarse spray
Low pressure
Increase the pressure.
Excessive fogging
(overspray)
High pressure
Material too thin
Reduce the pressure to satisfactory pattern distribution.
Use less thinner.
Pattern too wide
Spray angle too large
Use smaller spray angle tip.
Pattern too narrow
Spray angle too small
Use larger spray angle tip (if coverage is OK, try tip
in same nozzle group)
Too much material
Nozzle too large
Material too thin
Pressure too high
Use next smaller nozzle.
Too little material
Nozzle too small
Use next larger nozzle
Material too thick
Thin distribution in
center of pattern
"horns".
Worn tip
Wrong tip
Change for new tip.
Use nozzle with a narrow spray angle.
Thick skin on work
Material too viscous
Application too heavy
Thin cautiously.
Reduce pressure and/or use tip in next smaller nozzle
group.
Coating fails to
close & smooth over
Material too viscous
Thin cautiously.
Spray pattern irregular, deflected
Orifice clogged.
Tip damaged
Clean carefully.
Replace with new tip.
Craters or pock
marks, bubbles
on work
Solvent balance
Use 1 to 3% "short" solvents remainder "long" solvents
(this is most likely to happen with material of low
viscosity, lacquers etc.)
Clogged screens
Extraneous material
in paint.
Coarse pigments
Poorly milled pigments
(paint pigments glocculate)
Clean screen
Reduce pressure.
Use coarse screen if orifice size allows.
Use coarser screen, larger orifice tips. Obain ball
milled paint. If thinner has been added, test to see if
a cover screen. Incompatible drop placed on top of
paint mixes or flattens out on the paint mixture &
thinners on the surface. If not, try different thinner in
fresh batch of paint.
TEST THE PATTERN
Good, full
12
Spotty Pattern, Increase Pressure.
REV-TIP™ SIZE SELECTION CHART
Spray tip selection is based on paint viscosity, paint
type, your pumps output capabilities, and job needs.
Going to larger spray tip sizes is dependent on how many
gallons of paint per minute can be sprayed by your pump
Do not use a tip larger than the maximum pump flow rate
or capacity the sprayer can accommodate. Pump flow
rate is measured in gallons per min. (GPM), or where
appropriate, liters per min. (LPM).
For light viscosities (thin paints), use a smaller tip;
for heavier viscosities (thicker paints), use a larger
tip size.
REV-TIP for Painting
SPRAY PAINTING TIP - ORIFICE SIZE (Inches)
TM
Fan Width (12” from surface)
.007 .009 .011 .013
(mm)
in.
4-6
6-8
8-10
10-12
12-14
14-16
16-18
20-24
102-152
152-203
203-254
254-305
305-356
356-406
406-457
508-610
Gun Filter
C = Coarse
F= Fine
Wood Lacquer, Varnish
Interior Stain, Sealer
Enamel
Exterior Stain
Wood
307
209 211
309 311
409 411
511
611
213
313
413
513
613
.015
.017
.019
.021 .023
215
315
415
515
615
715
815
217
317
417
517
617
717
219
319
419
519
619
221 223
321 323
421 423
521 523
621 623
721
821
W21 W23
819
NEW WIDE PATTERN REV-TIP ►
F
F
•
•
•
•
F
•
Exterior Vinyl, Acrylic, Latex
Masonry vinyl,oil-base alkyd
F,C
C
•
•
•
•
•
•
Latex, Acrylic
Block Filler
Elastomer
C
C
•
•
•
•
•
•
Ceiling Hi Build, Mil White
Structural Steel
Heavy Coatings
C
•
•
.029
.025 .027 .031 .035
225
325
425
525
625
229
335
431
531
631
535
635
639
739
641
741
831
W25
REMOVE FILTER
C
•
227
327
427
527
627
.039 .041
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Water Flow Rate (gal./min.)
(water @ 2000psi, 138 bar)
(liters/min.)
.12
.49
.18
.69
.24
.91
.31
1.17
.38
1.47
.47
1.79
.57 .67
2.15 2.54
.77 1.03 1.31 1.63 1.80
2.96 3.90 4.98 6.17 6.81
Paint Flow Rate (gal./min.)
(latex paint @ 2000psi,
(liters/min.)
138 bar/1.36 spec. gr.)
.10
.38
.15
.57
.21
.79
.27
1.02
.33
1.25
.40
1.51
.49 .58
1.85 2.20
.66 .88 1.12 1.39 1.54
2.50 3.33 4.24 5.26 5.83
Pump Minimum (gal./min.)
(liters/min.)
Output*
.25
1.0
.25
1.0
.33
1.25
.40
1.5
.50
1.9
.60
2.3
.75
2.8
*Pump will support tip worn to next larger size.
PATTERN WIDTH
Thickness of the paint coat per stroke is determined by
spray tip "fan width", rate of the spray gun movement, and
the distance to the surface being sprayed. Airlessco "Wide
Pattern" spray tips offer fan patterns up to 18-24" wide for
optimum coverage speed. Due to the fine atomization at
the edge of the spray pattern on Wide Pattern tips, they
may not be the best choice for exterior use when wind
is present.
.88
3.3
1.0
3.8
1.25
4.7
1.5
5.7
2.0
7.5
2.2
8.2
SPRAY TIP REPLACEMENT
During use, especially with latex paint which is very
abrasive, high pressure will cause the orifice to grow larger.
This destroys the spray pattern. Replace tips before they
become excessively worn.
Worn tips waste paint, cause overspray, make cutting-in
difficult. They can effect sprayer performance too because
the volume of paint going thru a "blown out" tip can be
greater than the pumps maximum output capacity.
SPRAY TIP SELECTION
Two tips having the same tip size, but different pattern
widths will deliver the same amount of paint over a different
area (wider or narrower strip). A spray tip with a narrow
pattern width makes it easy to spray in tight places.
13
REGULAR MAINTENANCE
1. Always stop the pump at the bottom of its stroke when you take
a break or at the end of the day. This helps keep material from
drying on the rod, damaging the packings.
2. Keep the displacement pump packing nut/wet cup 1/3 full of
Airlessco Throat Seal Oil at all times. The TSO helps protect the
packings and rod.
3. Lubricate Connecting Rod Pin every 3 months.
4. Inspect the packing nut daily. Your paint pump has
Airlessco's patented "Triple Life Packing System".
Packing life will be extended a minimum of
3 times if the proper packing tightening
procedure is followed!
Packing Tightening Procedure:
Inspect the packing nut daily!
If seepage of paint into the packing nut and/
or movement of the piston upward is found
(while not spraying), the packing nut should be
tightened enough to stop leakage only, but not
any tighter.
Overtightening Will Damage the Packings
and reduce the packing life to the life of other
piston pumps.
OIL AND LUBRICATION PROCEDURE
FIG. 8
Bleed
(Weep Hole)
Sealed Bearing
1 oz. SAE 30 W oil
every 3 months.
Fill Plug - Note: Gearbox has
permanent gear grease and
will not require changing.
Oil impregnated
sleeve. Dip in hot 10 W
oil when removed.
FIELD TROUBLESHOOTING
PROBLEM
SOLUTION
There is spitting from
the gun.
The fluid supply is low or empty.
Refill the supply container.
Air entrapped in the fluid pump
or hose.
Check for loose connections on the
siphon assembly, tighten, then reprime pump.
Paint leaks into the
wet cup
The packing nut/wet cup is loose.
The upper packings are worn
or damaged.
Worn Piston Rod.
Tighten just enough to stop leakage.
Replace the packings. See page 17.
The pressure setting is too low.
The clutch is not engaged.
The displacement pump is seized.
Increase the pressure. See page 5.
See Troubleshooting pg. 19.
Service the pump. See page 15
The engine operates, but
the paint pump doesn't
cycle.
14
CAUSE
Replace Piston Rod
CONTINUED ON NEXT PAGE.......
PROBLEM
The engine and displacement pump operates, but
paint pressure is too low or
none
CAUSE
SOLUTION
The pressure setting is too low.
The tip or gun filter is clogged.
The tip is worn.
The fluid displacement pump
filter is clogged.
There is a large pressure drop
in the fluid hose.
Increase the pressure, see page 4, step 5.
Remove the tip and/or filter and clean them.
Replace Tip.
Clean the filter.
The displacement pump
operates, but the output is
too low on the downstroke
or both strokes.
The lower check valve ball
is not seating properly.
Service the lower check valve
see page 16
The displacement pump
operates, but the output
is too low on the upstroke.
The upper check valve ball is not
seating properly.
Service the upper check valve per
page 16.
The lower packings are worn or
damaged.
Replace the packings. See page 17.
Use a larger diameter hose.
Clutch does not engage.
Clutch slippage.
See Troubleshooting page 19.
Call Authorized Service Center.
Engine stops
Refer to Engine Manual.
SERVICING FLUID PUMP
Note: Check everything in the Troubleshooting Chart before disassembling the sprayer.
FLUID PUMP DISCONNECT
1. Flush out the material you are spraying, if possible.
2. Follow the Pressure Relief Procedure on Page 6. Stop the pump in the middle of down stroke.
3. Remove the suction tube and fluid hose (if so equipped) from the fluid pump. On the LO-BOY, detach the hose from
the front of the fluid pump. (Fig. 20, item 14)
4. Remove 2 retaining rings and slip the sleeve of the coupling down and remove both coupling halfs. This will disconnect
fluid pump from the connecting rod. (Fig. 22, Items 10, 11 & 12)
5. Unscrew the two tie rod locknuts.
6. Pull the pump down off the tie rods.
FLUID PUMP REINSTALL (FIG. 22)
1. Loosen the packing nut and extend piston rod to fully up position. Slip sleeve (189-047)
over the piston rod.
2. Make sure that spacer tubes (301-048) are in place.
3. Connect connecting rod with fluid pump by installing coupling halfs (189-046). Slide sleeve over
coupling halfs. Secure with retaining rings (189-048).
4. Secure the fluid pump housing to the tie rods (100-328) and screw nuts with lock washers on loosely.
5. Tighten the tie rod nuts evenly to 30 ft. lb.
6. Reconnect fluid hoses and suction tube (if so equipped).
NOTE: After all the rod locknuts are tight, the alignment of both rods should allow easy assembly and disassembly of
the coupling. If thre is any binding, loosen and retighten all the rod locknuts to improve the alignment. Misalignment
causes premature wear of seal and packings.
7. Tighten the packing nut, until there is resistance, then 1 full turn tighter. Approximately 4 threads will show, when
new packings are installed. Fill the wet cup of the packing nut 1/3 full with TSO.
8. Start the pump and operate it slowly (at low engine speed and pressure setting ) to check the piston rod for
binding. Adjust tie rod lock nuts if necessary to eliminate binding.
9. Run at maximum pressure for several minutes, relieve pressure and repeat step 7.
15
SERVICING INLET & OUTLET VALVES
INLET VALVE (See FIG. 9 & 11)
FIG. 9
1. Using the rod collar tool (189-211), screw the suction nut
(187-018), containing intake seat support (187-017), off
of the fluid body (187-313).
2. Remove the inlet seat (187-065), O-ring (106-017), inlet
ball (187-020) and ball cage (187-016) with O-ring (106-018).
PISTON
3. Clean all parts and inspect them for wear or damage,
replacing parts as needed. Old "O" rings should be replaced
with new ones.
NOTE: Inlet seat (187-065) is reversible.
4. Clean inside of fluid body (187-313).
5. Reassemble the valve and screw it onto the fluid body if
no further service is needed.
PACKING NUT/
WET CUP
UPPER
PACKFLUID
OUTLET
PISTON, OUTLET VALVE (See FIG. 9 & 11)
1. Stop piston rod in middle of it's stroke. Remove retaining
rings (189-048).
2. Slip the sleeve (189-047) off the coupling halves (189-046)
and remove both coupling halves. This will disconnect piston
rod from connecting rod and gearbox assembly.
3. Screw the suction nut (187-018) off the pump and remove
inlet valve assembly.
4. Using the rod collar tool, loosen the packing nut (CCW) and
push the piston down and out of the fluid body.
DISTANCE
TUBE
LOWER
PACKING
5. Place piston holder (187-248) in a vise. Slide the piston
into the holder and lock in place with a 1/4" pin (187-250).
WIPER
PACKING
6. Clean all parts and inspect them carefully for wear or
damage. Inspect the outside of the piston rod for scoring or
wear. Replace these parts if needed. A worn piston rod will
cause premature wear of packings.
OUTLET
VALVE
7. Using a 3/8" allen wrench to unscrew the outlet seat support
(187-051) from the piston (187-330).
8. Remove the outlet seat (187-061), O-ring (106-021), outlet ball
(115-022) and ball cage (187-062).
INLET
9. Inspect the outlet ball and seat for wear. Replace as required. VALVE
NOTE: Inlet seat (187-061) is reversible.
10. Install parts back into piston rod as per Fig. 11, page 16.
Place two drops of loctite No. 242 (blue) on threads of the
SUCTION
outlet seat support before assembling and torque to 20 ft-lbs. NUT
FLUID
INLET
16
V-PACKING REPLACEMENT
V-PACKING REPLACEMENT KIT
SEVERE DUTY- PART NO. 187-040
FIG. 10
Contains: Leather & Plastic Packings,
PTFE & Viton O-Rings, Balls &
plastic dual sided female adaptor
& Larger Male Glands.
GLAND KIT - Part Number 187-064
V-PACKING REPLACEMENT
INSTRUCTIONS (FIG. 10 & 11)
1. Remove the fluid pump as per the "Fluid Pump
Disconnect" instructions on page 13.
2. Unscrew and remove the inlet valve per
instructions on page 16.
3. Unscrew & remove the packing nut (187-046).
Push the piston rod down through the packings
and out of the pump. Utilizing packing removal
tool (187-249) the complete packing set can be
removed quickly and easily. Another method is
to wrap some masking tape around the bottom
of the piston. Now push the piston back
through the pump and remove through the
top. The packings and glands will be removed
with the piston rod, leaving the fluid body
(187-313) empty.
4. Disassemble and clean all parts for reassembly. Discard old packings.
Save metal upper glands (187-026 & 187025). Replace metal lower glands 187-037
with new metal glands from Packing Kit.
If the old packing had metal gland
for 187-058 discard and replace with plastic
187-058.
187-026
187-030
187-060
187-025
187-031
187-315
187-029
187-059
187-058
5. Remove the outlet seat support, outlet seat,
outlet ball, O-ring and ball cage as previously
described on page 16.
187-037
17
V-PACKING REPLACEMENT (Continued)
FIG. 11
187-046
106-018
106-013
187-030
187-020
187-065
187-037
187-330-99*
187-060
187-025
187-062*
187-029
187-058
187-029
106-021*
187-031
115-022
187-059
187-313
106-017
187-017
187-018
187-059
301-094
187-037
187-061
141-010
187-051*
REASSEMBLY
* INCLUDED WITH 187-330-99 PISTON ASSEMBLY
6. Lubricate leather packings in lightweight oil for 10
minutes prior to assembly.
7. Remove masking tape from piston. (if used)
8. Reassemble all parts onto piston in the following
order: (Per FIG. 10)
a. Start with lower metal male gland (187-037)
b. Five V-Packings (187-029 &187-059).
Inverted "Λ" .
c. Female adaptor (187-058)
d. Five V-Packings (187-029 & 187-059). "V" up.
e. Upper Male gland (187-037)
f. Slide on distance tube (187-315)
g. Three Belleville Springs (187-031) starting
with the first spring facing down ( ) and
next facing up ( ) and the third facing down
( ).
h. Slide on upper male gland (187-025) with
bevel facing up.
i. Five V-Packings (187-030 & 187-060).
inverted "Λ".
j. Female Gland (187-026)
18
187-016
See FIG. 10
106-012
187-026
106-014(OPT.)
187-315
187-047
k. Slide on the V-Packing holder (187-047)
with O-rings (106-013 & 106-012) in place
over upper packings.
13. Lubricate inside of cylinder & outside of packings
then slide complete assembly into the fluid
body (187-313). Thread packing nut (187-046)
into cylinder & tighten (handtight).
14. Install the lower check valve and tighten the
lower check valve nut (187-018).
15. Connect the pump to the machine as per fluid
pump reinstall procedure on page 16.
16. Tighten the packing nut (clockwise) until
resistance is felt against the belleville springs.
Now turn it 1 turn clockwise.
Run unit to maximum pressure for 5 minutes.
BALL VALVE -
Part Number 100-119
FIG. 12
PARTS LIST - FIG.12
ITEM NO.
PART NO.
DESCRIPTION
1
100-162
Handle
2
100-163
Screw
3
100-164
Ball
*
KIT-119
Repair Kit
2
1
*
3
* *
* *
TROUBLESHOOTING - Clutch Does Not Engage
STEP 1: Ensure that the pressure control knob (POT) is in the maximum (CW) position.
STEP 2: Remove the upper and lower clutch and electrical covers.
STEP 3: Check all electrical connections between the engine magneto, sensor, control board and clutch for loose
connections or damaged leads. See Fig.13.
STEP 4: Disconnect the two leads from the control board (blue) and the clutch assembly (black). Using a mul-
timeter, with the engine at maximum RPM, pressure control knob in the maximum position and the prime valve
open (priming) position, test the DC voltage across the boards leads (blue). This voltage must be 13-14 VDC. If
the readings are correct, the board, sensor and magneto are okay and the problem is the clutch assembly. If this
is the case, proceed to Step 5. If the voltage is outside this range go to Step 7.
STEP 5: Measure resistance between the clutch leads (black). This value must be 10-16 ohms. If this reading
is out of specifications the clutch is defective and must be replaced, otherwise continue troubleshooting.
STEP 6: If the clutch resistance readings of Step 5 are correct, check the spacing between the clutch field and
plate. The gap should be .012” to .024”. If the gap is greater than .028 the gap is too wide. If this gap is too wide,
remove the spacer (Fig. 15, Item 4) from the clutch assembly. Should the clutch still not engage, replace the clutch
assembly. See page 19 in manual.
STEP 7: When the DC voltage from the board is not 13-14 VDC, disconnect the control board lead (black) from
the engine magneto lead (pink), located on the side of the engine. With the engine at maximum RPM, pressure
control knob in maximum (CW) position and prime valve open (priming), read the AC voltage from the magneto
lead to the sprayer frame. This reading should be 19-24 VAC. If outside this range, contact your local Honda repair
facility for magneto replacement. If the magneto is producing the proper AC voltage, continue to Step 8.
STEP 8: Test the sensor by reading the resistance between the red and black wires. The resistance runs be-
tween 1.5-3 kohms. A defective sensor usually shows no resistance (open). If the reading is outside standards,
replace the sensor. An alternative method to test the sensor, is to plug a new sensor into the board and see if the
clutch will engage. Caution! When using this method, ensure prime/pressure valve is in the prime position. This
is important because the sensor plugged into the board is not measuring pressure in the fluid section.
STEP 9: When Steps 7 & 8 have been completed and the magneto and sensor check good, the electrical control
board is the only item left, replace the board. See page 20 in manual.
19
REPLACEMENT OF ELECTRICAL CONTROL BOARD
1. Remove electrical cover.
Hi Boy Fig 22 Item 37
Lo Boy Fig 23 Item 27
2. Disconnect sensor lead from Electrical Board.
3. Disconnect two clutch leads on Electrical Board from
leads on clutch.
5. Using a 1/2" nutdriver or 1/2" deep socket, remove
nut from pressure control shaft. This will allow removal
of electrical control board from frame.
6. Replace Electrical Board Assembly in reverse order.
Adjust pressure as per procedure below, "Pressure Calibration on the Electrical Control Board".
4. Using a 1/16" allen, loosen set screw in Pressure
Control Knob and remove knob.
PRESSURE CALIBRATION ON THE ELECTRICAL
CONTROL BOARD
1. Turn "Pressure Calibration" Trimpot adjustment on
electrical control board in the counter clockwise direction at least 15 revolutions.
2. Connect 5000 psi glycerine pressure guage on output
of pump between fluid pump & airless hose to monitor
Fluid Pump Pressure.
3. Start engine and run at maximum RPM. Turn Prime/
Pressure Relief Valve to the open (Prime) position. Turn
Pressure Control Knob to maximum position (fully clockwise).
4. Using an insulated screwdriver, adjust "Pressure Calibration" Trimpot by turning clockwise until the clutch engages. When the clutch engages the pump will commence
Priming. When pump is primed, turn the Prime/Pressure
Relief Valve to the Closed (Pressure) Position
The pump will begin to pressurize and the clutch will disengage at a low pressure. Continue turning the Trimpot
clockwise to increase pressure to 3000 psi.
5. Trigger gun. The pressure should drop approximately
350-400 psi (when using a 3/8" hose), the clutch will
engage and build pressure to 3000 psi and disengage.
Trigger gun several times to ensure proper pressure
setting.
6. Turn Pressure Control Knob to minimum position. The
clutch should disengage and pump stop moving.
7. Secure leads with tie strap.
8. Replace cover on unit. Ensure the leads are not pinched
or damaged in the process of replacing covers.
FIG. 13
Grommet
117-045
Control
Board
301-282-99
GRAY
To Sensor
331-294-99
Pressure
Calibration
Engine Magneto Lead
BLACK
GREEN
BLUE
BLACK
BLACK
Clutch
Engine
Set Screw
Frame
20
BLUE
Knob
117-044 (Hi-Boy)
301-513A (Lo-Boy)
301-264
CLUTCH REPLACEMENT - HI-BOY
REMOVE CLUTCH AS FOLLOWS:
(See Figs. 15 & 17)
1. Remove upper and lower clutch covers (Fig. 22, Item
21,27)
2. Disconnect two clutch leads from electrical board leads.
Pull clutch leads through grommet from frame.
3. Disconnect and remove fluid section from gearbox,
including connecting rod assembly and cover plate.
4. Remove four bolts, (Fig. 17, Item 7), holding gearbox
and clutch assembly to holder, Item 6. Remove gearbox
with clutch assembly attached.
5. Place gearbox in vice by gripping the flat portion of
the drive crank allowing the clutch assembly to face up.
Use caution and not allow gearbox to swing and damage
casting against vice.
6. Hold coupling screw, (Fig. 15, Item 2), with 13/16"
wrench, then with 5/16" allen wrench screw differential
screw, (Fig. 15, Item 1), out of coupling screw and gearbox
shaft.
7. Screw large end of differential screw into coupling
screw and pull them out of clutch assembly.
8. The clutch, Item 5, can now be removed. Items 3 to 8
should be inspected for wear, replace if needed.
INSTALL NEW CLUTCH AS FOLLOWS:
1. With gearbox held in a vise, as described above, place
first spacer, (Item 8) and bearing, (Item 6) onto gearbox
shaft. (Refer to Fig. 15)
2. Insert snap rings, (Item 7), into recesses of cog pulley
portion of clutch. Place cog pulley portion of clutch onto
shaft.
3. Place second spacer, (Item 8) into cog pulley portion
of clutch. This spacer will rest on the first bearing, (Item
6) installed.
4. Insert second bearing, (Item 6), on top of upper snap
ring, (Item 5).
5. Lay removable spacer (Item 4) on top of last bearing. If the clutch air gap is larger than .028", do not use
removable spacer. Put spacer (Item 3) over removable
spacer, if used, and top bearing.
6. Place coil portion of clutch down onto cog pulley portion
of clutch and center on gearbox shaft.
7. Screw differential screw, (Item 1) into coupling nut assembly until 1/16" is showing. (See Fig. 16).
8. Push coupling nut assembly, (Item 2), into clutch assembly until it comes to a positive stop. (Differential screw
comes into contact with the threaded gearbox shaft.)
9. With 13/16" wrench on coupling screw and 5/16" allen
wrench in the differential screw, simultaneously screw
coupling assembly into gearbox shaft by turning clockwise
until a positive stop is reached.
10. Hold coupling screw and tighten differential screw to
30 ft-lbs. This will expand the coupling assembly, thereby
holding the clutch assembly to gearbox shaft. Turn clutch
observing clutch gap. The pulley should turn freely with
a gap of .012" to .024" between the two clutch faces. If
the gap is greater than .028" remove the spacer (Item 4).
Reassemble and check gap for proper clearance
11. Reconnect gearbox and clutch assembly to holder
with four bolts as follows:
Place cog belt on large pulley portion of clutch. Hold belt
and let gearbox hang upside down. Place belt over upper
pulley on engine, (Fig.17, Item 3). Rotate gearbox upright
and install bolts loosely.
Push down on gearbox with approximately 50 lbs. of
force to tighten belt. Align gearbox vertically and tighten
bolts.
12. Insert clutch leads back through grommet in frame
and connect to electrical control board leads.
13. Connect spring, (Fig.15, Item 9) to holder, (Fig.17,
Item 6).
14. Reconnect fluid section, as described on page 14.
15. Check clutch and pump for proper operation. Replace
all covers.
21
CLUTCH REPLACEMENT - LO-BOY
REMOVE CLUTCH AS FOLLOWS:
1. Remove the upper and lower clutch covers (Fig. 23,
Item 27, 11).
2. Remove the splash cover from the clutch brackets
and spacer tubes. (Fig. 23, Item 17)
3. Disconnect the two clutch leads from the electrical
control board leads.
4. Remove gearbox cover with manifold filter from
gearbox.(Fig. 23, Item 30). Disconnect hose (Fig. 20,
Item 14) from fluid section.
5. Disconnect and remove fluid section from gearbox,
including Connecting Rod Assy. (See"Fluid Pump
Disconnect, pg. 15)
6. Remove four nuts (Fig. 23, Item 23) on the engine
side of (Item 18) from screws (Item 24) which pass
through spacer tubes (Item 15). This will allow removal
of Gearbox & Clutch Assembly from "Holder-Manifold"
(Item 18).
7. Pull the cog belt loose from the engine shaft cog
pulley (Fig.23, Item 10) and remove the gearbox/
clutch assembly from the rest of the unit.
8. Place gearbox in vice by gripping the flat part of the
drive crank allowing the clutch assembly to face up.
Use caution and not allow gearbox to swing and
damage casting against vice.
9. Hold coupling screw, with 13/16" wrench, then with
5/16" allen wrench, screw differential screw (Fig. 15,
Item 1), out of coupling screw and gearbox shaft.
10.Screw large end of differential screw into coupling
nut assembly (Fig. 15, Item 2) and pull out of clutch
assembly.
11.The clutch (Fig. 15, Item 5) can now be removed.
INSTALL NEW CLUTCH AS FOLLOWS:
1. With gearbox held as described above (Step 8),
place first spacer, (Fig. 15, Item 8) and bearing, (Fig.
15, Item 6) onto gearbox shaft.
2. Insert snap rings (2), Item 7 into recesses of cog
pulley portion of clutch. Place cog pulley portion of
clutch with cog belt attached onto shaft.
3. Place second spacer, (Item 8) into cog pulley portion
of clutch. This spacer will rest on the first bearing,
(Item 6) installed.
4. Insert second bearing, (Item 6) on top of upper snap
ring, (Item 7).
22
INSTALL NEW CLUTCH CONTINUED
5. Lay removable spacer (Item 4) on top of last bearing.
If the clutch air gap is larger than .028", do not use
removable spacer. Put spacer (Item 3) over
removable spacer, if used, and top bearing.
6. Place coil portion of clutch down onto cog pulley
portion of clutch and center on gearbox shaft.
7. Screw differential screw, (Item 1) into coupling screw
and nut (Item 2) until 1/16" is showing. (See Fig. 16)
8. Push coupling nut assembly, (Item 1 & 2) into clutch
assembly until it comes to a positive stop.
(Differential screw comes into contact with the
threaded gearbox shaft.)
9. With 13/16" wrench on coupling screw and 5/16"
allen wrench in differential screw, simultaneously
with both wrenches screw coupling nut assembly
into gearbox shaft by turning clockwise until a
positive stop is reached.
10. Hold coupling nut ass'y and tighten diffential screw
to 30 ft.-lbs. This will expand the coupling assembly,
thereby holding the clutch assembly to gearbox
shaft. Turn clutch observing clutch gap. The pulley
should turn freely with a gap of .012 to .024" between
the two clutch faces. If the gap is greater than .028,
remove the spacer (Item 4). Reassemble and check
gap for proper clearance.
11. Place Cog Belt over Cog Pulley portion of clutch.
Loosen set screws (Fig. 14, Item 6) until set screws
are approximately 1/4" above Block Tensioneer (Item 7)
12. Reassemble the Spacers (Fig. 23, Item 15) onto screws.
(Item 24). Simultaneously lift gearbox assembly with clutch
into position by placing Cog Belt over engine shaft log
pulley and inserting the four Screws (Item 24) into HolderManifold (Item 18) and replacing Nuts (4) (Item 23). Tighten
nuts to hold assembly in place.
13. Slightly loosen Screws (4) (Fig. 14, Item 5).
14. Evenly tighten Set Screws (Fig. 14, Item 6) until flush with
tip of Block Tensioner (Item 7). Check tension on Cog Belt
by pressing hard with thumb. Proper tensioning should
allow for approximately 1/8". If belt is too loose, tighten Set
Screws further.
15. Replace Connecting Rod and Fluid Section. Preplace Front
Cover on gearbox. Connect Hose (Fig. 20, Item 14) to fluid
section.
16. Connect the clutch and board leads. Connect Spring
(Figure 15, Item 10) to spacer tube.
17. Replace the splash shield.
18. Test the clutch for proper operation.
19. Replace clutch covers.
CLUTCH REPLACEMENT - LO-BOY
FIG. 14
FIG 14 PARTS LIST
PART NO.
DESCRIPTION
301-231
Cog Belt
301-264
Clutch Replacement
305-088
Screw
100-175
Shoulder Screw
100-173
Screw Flanged (4)
100-174
Set Screw (2)
301-534
Block Tensioner
301-208
New Gearbox
305-045
Plate
305-046
Spacer Tube (4)
ITEM NO.
1
2
3
4
5
6
7
8
9
10
5
6
7
8
4
9
3
2
10
1
CLUTCH ASSEMBLY HI-BOY/LO-BOY
10
FIG. 15
8
3
1
2
ITEM NO.
1
2
3
4
5
9
7
Gearbox
4
6
5
PART NO.
FIGURE 15 PARTS LIST
DESCRIPTION
ITEM NO.
PART NO.
DESCRIPTION
112-041
112-054
301-412
301-413
301-264
Screw-Differential
Coupling Nut Assy
Spacer
Spacer-Removable
Clutch-Replacement
301-037
100-333
301-274
136-068
301-316
Bearing (2)
Retaining Ring (2)
Spacer (2)
Spring
Rubber Edge
6
7
8
9
10
FIG. 16
Items 1 & 2
23
ENGINE ASSEMBLY HI-BOY
FIG. 17
5
ENGINE
1
2
3
6
7
8
GEARBOX
4
10
9
7
FIGURE 17 PARTS LIST
ITEM PART
NO.
NO.
1
112-029
ITEM
NO.
PART
NO.
Key (3/16 x 1 1/2)
8
301-272
Insert (2)
Screw, Soc (1)
9
136-091
Screw, cap 5/16 - 24 (4)
10
100-383
Screw, soc 3/8 - 24 (4)
DESCRIPTION
2
100-357
3
301-222A Hub/Sheave Ass'y
4
301-229
Thrust Plate
5
301-230
Screw Cap (5/16-24X 2 1/4)
6
301-271
Holder
7
100-169
Screw , cap 5/16 - 18 (4)
DESCRIPTION
ENGINE ASSEMBLY LO-BOY
FIG. 18, ENGINE ASS'Y
ITEM NO.
1
2
3
4
5
6
7
8
9
24
PART NO.
DESCRIPTION
301-160
305-012
136-091
112-029
100-357
100-383
301-222A
301-229
301-230
Honda 5.5HP Engine
Adaptor
Screw (4)
Key
Screw (set)
Screw (4)
Sheave Assly.
Thrust Plate
Screw
PAINT SYSTEM ASSEMBLY - HI-BOY Part Number 301-452
FIG. 19
Part #
100-028
100-070
100-109
100-119
100-123
100-129
100-141
100-161
100-224
100-226
111-200
169-010
169-013
187-313
301-260
301-526
305-140
331-294
331-424
Description
1/4" Plug
1/4" x 1/4" Nipple
3/8" x 1/4" Nipple
Ball Valve
3/8" x 21" Hose
3/8" Plug
3/8"M x 1/4"M Elbow
3/8" Cap w/ Ring
1/4" Barb
1/4"M x 1/4"F Fitting
Filter Assembly
3/8" x 3/8" Nipple
3/8"M x 3/8"F Elbow
Pump Body (SL)
Manifold
3/8" x 15" Hose
Filter Bracket
Sensor Assembly
ByPass Hose
(1) 187-313
25
PAINT SYSTEM ASSEMBLY - LO-BOY
FIG. 20
FIG. 20 PARTS LIST, PAINT SYSTEM ASSEMBLY
ITEM NO. PART NO.
1
2
3
4
5
6
7
8
9
10
11
26
120-504
100-111
100-023
169-010
111-200-99
100-129
100-161
100-070
100-119
100-012
100-004
DESCRIPTION
ProLight Spray Gun (Optional)
50' x 1/4" Hose (Optional)
50' x 3/8" Hose
3/8"M x 3/8"M Nipple
Manifold Filter Assembly
3/8" Plug
3/8" Cap w/ Ring
1/4" x 1/4" Nipple
Ball Valve
1/4"M x 1/4"F x 4' Swivel Hose
1/4"M x 1/4"F Elbow
ITEM NO.
12
13
14
15
16
17
18
19
20
21
22
PART NO.
DESCRIPTION
188-177
169-013
100-123
100-141
301-253
100-028
100-317
100-345
100-109
187-410
167-016
1/4" Return Tube
3/8"M x 3/8"M Elbow (x2)
3/8"F x 3/8"M x 21" Hose (x2)
1/4"M x 3/8"M Elbow
Manifold
1/4" Plug (x2)
1/4" Nut (x2)
1/4" Bolt (x2)
3/8M x 1/4M NPS Nipple
SL Fluid Pump
3/8M x 3/8M Elbow
MANIFOLD FILTER - PN 111-200-99
FIG. 21
11
1
2
3
4
5
6 7
7
712
7
7
9
10
7
11
8
FIGURE 21 PARTS LIST
ITEM
1
2
3
4
5
6
7
8
9
10
11
*
12
PART NO.
111-202
301-356
106-007
111-204
111-203
111-201
169-013
100-034
100-129
169-013
100-161
111-200
100-028
DESCRIPTION
Base*
Spring*
O-Ring*
Filter
Support*
Base*
3/8" M x 3/8" M Elbow
3/8" NPT (M) x 3/8" NPS (M) Hose Connector
Plug 3/8"
3/8" NPT (M) x 3/8 NPS (M) Elbow
3/8" Cap with Ring
Filter Assy.
Plug 1/4 NPT
27
COMPLETE SPRAYER - HI BOY
FIG. 22
28
See pg.22
Fig. 17
24
29
25 26 27
8
6
5
9
4
41,42,
10
3
11
12
2
19
22
10
54
18
1
See pg. 23
Fig 19 17
43,44
55
45
37
23 58
21
16
53
52
20
56
38
30
33
15
31
13
32
14, 14a
14b
35 34
46
47
51
28
50
49
48
FIGURE 22 PARTS LIST
ITEM
NO.
PART
NO.
DESCRIPTION
ITEM
NO.
PART
NO.
DESCRIPTION
1
301-092
Shield - rear
29
175-021
Air Filter , Engine
2
301-189
Shield - front
30
301-239
Frame Weldment, Gas
3
301-105
Hook
31
301-149
Spacer
4
100-360
Screw (2)
32
163-016
Spacer (2)
5
100-312
Screw (4)
33
301-165
Wheel (2)
6
301-320
Cover -gearbox
34
301-170
Axle
8
301-333
Connecting Rod Ass'y
35
143-029
Set Collar (2)
9
301-046
Rod End
36
301-134
Solid Neoprene Stopper (2)
10
189-048
Retaining Ring (2)
37
301-326
Bottom Cover
11
189-046
Coupling Set
38
100-390
Screw (4)
12
189-047
Coupling Cover
41
140-029
Washer 5/16 (8)
13
187-410
Fluid Pump
42
136-123
Screw, 5/16 (4)
14
301-090-99 Suction Ass'y, 16" (5 gal.)
43
140-029
Washer , Flat (4)
14a 301-543-99 Suction Ass'y, 36" (55 gal.)
44
100-317
Nut, 5/16 (4)
14b 141-010
Inlet Strainer
45
100-028
Plug, 1/4
15
140-051
Nut (2)
46
119-015
Tube Connector (2)
16
140-035
Washer, Lock (2)
47
112-056
Spacer (2)
17
100-328
Stud (2)
48
163-029
Shock Mount (2)
18
301-048
Spacer, Tube (2)
49
188-185
Spacer (2)
19
301-047
Sleeve Bearing
50
163-011A Washer (2)
20
301-173
Retainer
51
100-172
Screw (2)
21
301-280
Clutch Cover - bottom
52
100-318
Screw (2)
22
111-037
Screw (4)
53
100-034
Washer (2)
23
301-231
Cog Belt
54
301-068
Spacer (2)
24
301-208
Gear Box & Rod
55
100-317
Nut, Center Lock (2)
24
301-208-99 Gearbox only, 1"
56
140-029
Washer (2)
25
100-339
Screw (2)
188-160
Ground Ass'y
26
301-135
Grommet (6)
112-057
Mount Bar
27
301-254
Clutch cover, Top
117-044
Knob Ass'y for Potentiometer
28
301-160
Honda Eng. QXS160(5.5hp)
58
FOR SAFETY, KEEP ALL LABELS ON UNIT CLEAN AND READABLE.
ORDER NEW LABELS AS REQUIRED.
29
POWER UNIT ASSEMBLY - LO-BOY
FIG. 23
31
24 23
28 27
21
22
20
25
19
18
17
16
15
26
30
13
29
1
2
3
4
5
6
7
8
32
9
10 11 12 13
14
34
35
36
See Page 16
Fig. 11
33
See Page 30
Fig. 25
FIG. 23 PARTS LIST, POWER UNIT
Item No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
Part No.
301-047
301-189
189-046A
301-092
301-048
140-035
140-051
100-328
305-013
301-231
305-067
305-012
100-339
301-524
305-046
301-264
301-529
188-160
30
Description
Sleeve Bearing
Shield Front
Coupling Set Ass'y
Shield - Rear
Spacer - Tube (2)
Washer, Lock (2)
Nut (2)
Stud (2)
Holder
Cog Belt
Cover-Bottom
Adaptor
Screw (4)
5.5 HP Engine Ass'y
Spacer Tube (4)
Clutch Ass'y
Cover
Ground Ass'y
Item No.
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
Part No.
305-064
305-045
331-294-99
301-282-99
301-523A
140-044
305-047
301-208
301-333
301-531
301-135
100-312
301-320
301-337
301-547
100-317
140-029
100-344
301-536
Description
Holder-Manifold
Plate - Gearbox Mount
Sensor Ass'y
Pressure Control Board
Knob Ass'y
Nut (8)
Screw (4)
Gearbox
Connecting Rod Ass'y
Cover Top
Grommet (6)
Screw (4)
Cover -Gearbox
Screw (2)
Bolt (2)
Lock Nut (2)
Washer (4)
Washer (4)
Shock Mount (4)
FRAME ASSEMBLY - LO-BOY
FIG. 24
13
11
FIG. 24 PARTS LIST, FRAME ASSLY, 301-515
1
12
ITEM # PART NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
2
3
4
6
5
7
8
9
10
DESCRIPTION
301-510
188-367
113-031
301-165
143-029
100-317
163-008A
188-185
163-011A
169-050
100-170
301-546
120-021
Frame Weldment
Axle 5/8 x 21.81"
Spacer 5/8" ID x 1"
Wheel (2) 13x500-6
Set Collar (2) 5/8"
Centerlock Nut (2) 5/16-18
Rubber Foot (2)
Spacer (2) .25X .08WX
Washers (4) 1.25 x .31
Screw (2) 5/16-18 x 1
Cup
Screw 10-24 x 1.7
Nut 10-24 Vinyl
Above Part Numbers are for quantity one only.
SUCTION ASSEMBLY - 5 GAL. - P.N. 301-090-99
FIG. 25
FIG.25 PARTS LIST
ITEM NO. PART NO. DESCRIPTION
FLUID
PUMP
7
*
12
12
10
2
11 4
11
6
3
1
8
9
5
3
1
2
3
4
5
6
7
8
9
10
11
12
301-517
Suction Hose Ass'y
(includes items 1-5)
141-008
Inlet Strainer
301-514
Suction Tube
301-516
Hose Clamps (2)
301-513A Hose
100-165
Elbow
188-377
Return Pipe
100-128
Elbow
100-012
Whip
100-126
Elbow **
100-385
Reducer**
187-017
Fitting
187-018
Suction Nut
** used on units equipped with either the 100-180 or 331-050
prime valves. The 301-090 suction ass'y also includes the
100-081A Elbow for units with the 138-001 marathon prime valve.
SUCTION ASSEMBLY - 55 GAL. - P.N. 301-543-99
FIG. 26
FIG. 26 PARTS LIST
ITEM NO. PART NO. DESCRIPTION
FLUID
PUMP
7
12
10
6
4
3
2
11
11
1
9
8
5
3
1
2
3
4
5
6
7
8
9
10
11
12
141-008
301-545
301-516
301-544
100-165
188-377
100-128
100-012
100-126
100-385
187-017
187-018
Inlet Strainer
Suction Tube
Hose Clamps (2)
Hose
Elbow
Return Pipe
Elbow
Whip
Elbow **
Reducer**
Fitting
Suction Nut
** used on units equipped with either the 100-180 or 331-050
prime valves. The 301-090 suction ass'y also includes the
100-081A Elbow for units with the 138-001 marathon prime valve.
31
ACCESSORIES
AIRLESSCO
Quick Flush
STAY CLEAN™
™
Spray protectant for machine
to prevent paint from sticking
to it. Keeps your sprayer
looking new for years!
■ The only clean water flushing system
■ Cuts sprayer clean-up time in half!
■ Connects to standard garden hose
to backflush sprayer through gun
114-030
■ Includes "F" and "G" adapters to
work with all brands of gun
20 oz. can
Case quantity: 12 cans
Part # 170-005
THROAT SEAL OIL
Used in the wet cup of a piston pump
to prevent paint from drying on the piston & causing damage to the upper
packing. Use with all piston pumps.
PAINT HOPPER
For use on small jobs where paint is
kept in smaller than 5 gallon containers.
Threads onto pick-up tube of carry or
LoBoy framed Airlessco sprayers.
331-775
6 Liter Paint Hopper
PUMP CONDITIONER
188-187
188-392
XTEND-A-POLE SYSTEM
Standard Tip Extension
Should be used on piston pumps
between uses to prevent paint from
drying on the piston & causing packing wear.
010-001
010-009
010-019
Display of 48 - 1 oz. bottles
1 quart bottle
1 Gallon bottle
Case quantity: 12 on quarts, 4 on gallons
PAINT STRAINERS
Pre-filter your paint using strainer
bags. One dozen per pack.
100-064
100-065
Used to cover suction filter
5 Gallon strainer
HOSE COVER
4 mil poly protects your
airless hose from paint and
abrasion damage. Comes in 1000'
roll with perforations each 50'.
100-219
100-426
Hose Cover Roll
Case of 6 Rolls
HIGH PRESSURE AIRLESS HOSE
Strong yet flexible, for airless sprayers up to 3300 PSI
Part No:
100-012
100-040
100-204
100-199
Hose Description
3/16” Whip Hose, 4 Ft.
1/4” Whip Hose, 3 Ft.
1/4” Whip Hose, 5 Ft.
3/8” Whip Hose, 6 Ft.
100-011 1/4” Hose, 50 Ft.
100-023 3/8” Hose, 50 Ft.
100-037 1/2” Hose, 50 Ft.
100-010 1/4" Hose Connector
100-009 3/8" Hose Connector
6 oz. Bottle
1 qt. Bottle
Swivel Extension
Bare Pole
STANDARD TIP EXTENSION, “G” Thread
6” Long
12” Long
18” Long
24” Long
032-170
032-171
032-172
032-173
SWIVEL EXTENSION, “G” Thread
36” Long
032-184
BARE POLE
Add Tip Extension or Swivel Extension to
create desired length
032-053
24” Long
032-054
36” Long
SWIVEL “G” THREAD
032-035-55 7/8" x 14 Swivel
ADAPTERS
90° Pole to Gun Adapter
032-042
Gun Nut “F” Thread 11/16-16
032-010
Gun Nut “G” Thread 7/8-14
032-011
"F to G" Gun adapter to attach
Graco tips to Airlessco guns.
®
For a complete listing of all available accessories see
the Airlessco Accessories Catalog, Part # 001-357.
032-012
32
Download PDF