Graco 308620A GM 3000 Airless Paint Sprayer Owner's Manual

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INSTRUCTIONS-PARTS LIST
,-
This manual contains important
warnings andinformation.
READ AND KEEPFOR REFERENCE.
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G
GRACO
308-620
Rev. A
INSTRUCTIONS
GM 3000 Airless Paint Sprayer
3000 psi (210 bar) Maximum Working Pressure
Model 231-363
Basic Upright Sprayer
Model 231-551
Same as 231-363. with hose and gun, RAC
IV@
Dripless" Tip Guard, and517 size Switchlip"
Model 231-550
Basic Sprayer with Lo-Boy Cart
Model 231-552
Same as 231-550, with hose and gun, RAC
IV@
Dripless" Tip Guard, and 517 size
Switchlip"
A
(.
CAUTION
Always use a minimum hose length
of 50 foot
(15m)1/4inchIDor50foot(15m)3/8inchID.An
undersized hose may result in poor equipment
performance and damageto the clutch.
C€
Model 231-363 Shown
05831
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440-1441
@COPYRIGHT 1995, GRACO
INC.
Graco Inc. is registeredto I S . EN IS0 9001
Table of Contents
......................................
....................... 28
28
............................... 28
.................................. 29
................... 32
...... 37
......................... 38
41
..........42
43
................................
44
................................. 44
........................ 44
Warnings
2
Component Identificationand Function ............ 5
Setup..
6
Fueling .......................................
8
Startup..
9
Maintenance..
11
Flushing .....................................
12
Troubleshooting ...............................
14
Drive Housing, Connecting Rod, Crankshaft...... 16
Pressure Control
18
Pinion, Clutch, Clamp, Field,
& Engine .;
23
Pinion Housing..
24
Clutch
25
27
Engine .......................................
Field &Wiring Harness..
Clamp .......................................
Clutch Housing
Reassembly
Displacement PumpRepair..
Displacement Pump PartsList and Drawing
Sprayer Parts Drawing
Sprayer PartsList .............................
Pinion Assembly Partslist and Drawing
.......................
Pressure Control Parts list
Technical Data
Dimensions..
Graco PhoneNumber..
Graco Warranty and Disclaimers................
Warning Symbol
Caution Symbol
.......................................
......................................
................................
..............................
.. .......
..............................
.......................................
Symbols
44
Tt
EQUIPMENT MISUSE HAZARD
Equipment misuse can cause the equipment
to rupture or malfunction and result
in serious injury.
This equipmentis for professional useonly.
Read all instruction manuals,tags, and labels before operating the equipment.
Use the equipment only for
its intended purpose. Ifyou are not sure,call your distributor.
Do not alteror modify this equipment.
Check equipment daily. Repairor replace worn or damaged parts immediately.
Do not exceed the maximum working pressure
of the lowest rated system component.
Refer to the
of this equipment.
Technical Data on page44 for the maximum working pressure
Use fluidsand solvents which are compatible with the equipment wetted parts. Refer to the Technical Data section of all equipment manuals. Read the fluid and solvent manufacturer's warnings.
Do not use hoses to
pull equipment.
Route hoses away from traffic areas, sharp
edges, moving parts,and hot surfaces. Donot expose
Graco hoses to temperatures above
82°C (180°F) or below -40°C (-40°F).
Do notlift pressurized equipment.
Comply with all applicable local, state, and national fire, electrical,safety
and regulations.
B
Wear hearingprotection when operatingthis equipment.
Do not use1,I ,I-trichloroethane, methylene chloride, other halogenated hydrocarbon solvents
or
fluids containing such solvents
in pressurized aluminum equipment. Such use
could result in a
chemical reaction, with the possibility
of explosion.
i20
B
'/
INJECTION HAZARD
Spray from the gun, leaks or ruptured componentscan inject fluid into your body and cause extremely
serious injury, includingthe need for amputation. Fluid splashedin the eyesor on the skin can also
:awe serious injury.
a Fluid injected into the skin may
look like just a cut, but it is a serious injury. Get immediate rnedi-
cal attention.
a Do not point the gun at anyone
or at anypari of the body.
a Do not put your hand
or fingers over the spray tip.
a Do not stopor deflect leaks with your hand,
body, glove or rag.
a Do not "blow back" fluid;
this is notan air spray system.
a Always have the
tip guard and the trigger guard on the gun when spraying.
a Check the gun diffuser operation weekly. Refer
to the gun manual.
a Be sure the gun trigger safety operates before spraying.
a Lock the gun trigger safety when you spraying.
stop
a Follow thePressure Relief Procedure on page12 if the spray tip clogs
and before cleaning,
checking or servicing the equipment.
a Tighten all fluid connections before operating the equipment.
Check the hoses, tubes,
and couplings daily. Replace wornor damaged parts immediately.
Do not
repair high pressure couplings;
you must replace the entire hose.
a Fluid hoses must have spring guards both
on ends, to help protect them from rupture caused by
kinks or bends near the couplings.
TOXIC FLUID HAZARD
Hazardous fluidor toxic fumescan cause serious injury
or death if splashed in the eyesor on the skin,
inhaled, or swallowed.
Know the specific hazards of the fluid
you are using.
Store hazardousfluid in an approved container. Disposeof hazardous fluid according toall local,
state and national guidelines.
Always wear protective eyewear, gloves, clothing
and respirator as recommended
by the fluid and
solvent manufacturer.
FUEL HAZARD
The fuel used in this unit is combustible and when spilled on
hotasurface can ignite
and cause a fire.
Do notfill the fuel tank while the engineis running or hot.
EXHAUST HAZARD
The exhaust contains poisonous carbon dioxide which
is colorless and odorless.
Do not operate this equipment in a closed building.
308-620
3
FIRE AND EXPLOSION HAZARD
Improper grounding, poor ventilation, open flames or sparks
can cause a hazardous condition
and
result in a fireor explosion and serious injury.
Ifthere is any static sparking or you
feel an electric shock while using this equipment,
stop spraying immediately. Donot use the equipment
until you identify and correct the problem.
Provide fresh air ventilation to avoid the buildup
of flammable fumes from solvents the
or fluid
being sprayed.
Keep the spray area freeof debris, including solvent, rags, and gasoline.
Disconnect all electrical equipment in the spray area.
Extinguish all open flames or pilot lights
in the spray area.
Do not smokein the spray area.
Do not turn on or off any light switchin the spray area while operating iforfumes are present.
Do not operate a gasoline engine
in the spray area.
Ground the sprayerto a true earth ground with the ground wire and clamp (supplied).
Use only electrically conductivehoses.
MOVING PARTS HAZARD
Moving partscan pinch or amputate your fingers.
Keep clear ofall moving parts when starting or operating the sprayer.
Before servicing the equipment, follow Pressure
the
Relief Procedure on page12 to prevent the
eauiDment from starting unexpectedly.
NOTE: This is an example of the DANGER label on your sprayer. This label
is available in other languages, freeof
charge. See page 42 to order.
I
I
FIRE AND
EXPLOSIONHAZARD
I
I
-
I
SKININJECTION
HAZARD
I
Spray painting, flushing or cleaning equipment with flammable Liquids can be injected
into the bodyby high pressure airless
liquids in confined areas can result
in fire orexplosion.
spray or leaks especially hose leaks.
Use outdoors or in extremely well ventilated areas. Ground
Keep body clear of the nozzle. Never
stop leaks with any part of the
equipment, hoses, containers and objects being sprayed.
body. Draina11 pressure before removing parts.Avoid accidental
triggering of gunby always setting safetylatch when not spraying.
Avoid ail ignition sources such as static electricity
from plastic
drop cloths, open flames such pilot
as lights, hot objects such as Never spray without atip guard.
cigarettes, arcs from connecting or disconnecting power cords In case of accidental skin Injection, seek immediate
or turninglight switches on andoff.
“Surgical Treatment”.
Failure to follow this warning can resultin death or serious injury. Failure to follow this warning can resultin amputation or serious
inlurv.
-
READ AND UNDERSTAND ALL LABELS AND INSTRUCTION
MANUALS~BEFORE USE
~7
Component Identification and Function
T
L
J
H
G
S
c
Fig. 1
0010
OMXI1
308-620
5
A
I
Setup
CAUTION
To avoid damaging the pressure control, which may
result in poor equipment performanceand component
damage, follow these precautions.
1. Always usenylon spray hose. Never use a wire
braid hose; it is too rigid to act as a pulsation
dampener.
2. Always use a minimum
hose length of 50 foot
(15 m) x 1/4 inch ID or 50 foot (15 m) x 3/8inch
ID hose.
3. Never install any shutoff device between the
filter
(21) and the mainhose. See Fig. 2.
4.
Always use the main
filter outlet (20) for a one
gun operation. Neverpluq this outlet.
2. Fill packingnutlwetcup. Fill the packing nut/wetcup (A) 1/3full with Graco ThroatSeal Liquid
(TSL), supplied. See Fig.2.
3. Check the engine oil level. Refer to the Honda
is a summaryof the
engine manual, supplied. This
information: Remove one of
the oil fill plugs (M);
the oil should be almost overflowing. SeeFig. 3.
Add oil as necessary.
Recommended lubrication oil: Use a high-quality,
detergent oil,SAE 1OW-30, classified "FOR
SERVICE SG or SF", for regular useand for
breaking-in a new engine.
I
21
2arF
1. Connect hose and
gun. (Refer to Fig. 2.)
a. Remove the plastic cap from the
1/4 npsm (m)
filter outlet nipple(20). Screw the main fluid
hose onto thenipple. Read the CAUTION,
above.
b. Connect the whipend hose betweenthe main
fluid hose and theinlet adapter of the gun.
c. Do not use thread sealant,and do not install
the spraytip yet!
If you supply your own hoses
and spray gun, be
sure the hoses are electrically conductive, that the
gun has a tip guard,
and that each partis rated for
at least3000psi (210 bar) Maximum Working
Pressure. Thisis to reduce the riskof serious injury
caused by static sparking,fluid injection or overpressurization andruDture of thehose or aun.
6
308-620
21 Fluid Filler
46 Pressure drainvalve
20 114 npsm(rn)fluid outlet
A Welcuu
05832
Setup
4. Be sure your system
is properly grounded
before operatingit. Connect the sprayerto a true
earth ground with the grounding wire and clamp
(80) :for example, a cold waterpipe or a ground
rod driven into the earth.
8. Keep the sprayer upright and level
during
operation and whenever itis being moved. See the
CAUTION on page 10.
I
5. Fill thegas tank. See Fueling, page 8.
6. Flush the pump
to remove the lightweight oil
which was left in the pumpto protect it from corrosion.
CO15
a. Before using water-base paint, flush with
mineral spirits, followed by soapy water,
and
then flush with cleanwater.
b. Before using oil-base paint, flush with mineral
spirits, only.
c. See Flushing on page13 for the flushing
procedure.
7. Prepare the paintaccording to the manufacturer's
recommendations.
a. Remove any skin that may have formed.
b. Stir the paintto mix the pigments.
c.
Strain the paint through a fine nylon mesh bag
(available at most paint dealers) to remove the
particles that could clog the filter
or spray tip.
This is probably the most important
step
toward trouble-free spraying.
0141
308-620
7
Fueling
FIRE ANDEXPLOSION HAZARD
Gasoline is extremely flammableand
explosive under certain conditions.
Always turn the engine switch(K) to off
before refueling. (Fig.3)
Refuel in a well-ventilated area.
Do not smoke or allow flamesor sparks in the area
where the engine is refueled
or where the gasoline
is stored.
Do not overfill the tank. Make sure the fillgas
cap
(L) is securely closed after refueling. (Fig.
3)
Be careful notto spill fuel when fueling. Fuel vapor
or spilled fuel can ignite. If any
fuel is spilled,,make
sure thearea is dry before starting the engine.
1. Fuel specifications. Use automotive gasoline
with a pump octane number
of 86 or higher, or a
research octane number
of 91 or higher. Unleaded
fuel minimizes the combustion chamber deposits.
8
308-620
2. Gasolines containing alcohol
(gasohol). Do not
use gasohol which contains methanol,
if the gasohol does notcontain cosolvents and corrosion
inhibitors for methanol.Even if it does contain such
if it contains
additives, do not use the gasohol
more than5% methanol or 10 % ethanol.
NOTE: The Honda engine warranty does not cover
the damage resulting from the use of gasolines
containing a higher percentage
of alcohol than mentioned
in step 2. See theHonda engine manualfor more
information.
3. General. Do not use anyoil and gasoline mixtures
or contaminated gasoline. Avoid getting
any dirt,
dust or waterin the fuel tank.
4. Tank Capacity. 0.66 gallons (2,5liters). Always
leave at least 1/2 in. (13 mm) at thetop of the tank
for expansion.
5. Shut off the engine before
refueling.
6. After refueling, tighten the fuel tank cap
firmly.
j
.
Before You Start the Sprayer
4. Move the pressure control switch
to OFF.
1. See Flushing on page12 todetermine ifyou
should flush the sprayer.
5. To start theengine:
2.
a. Turn the pressure adjusting
knob all the way
counterclockwise tothe lowest pressure setting.
Be sure thegas tank is full.
3. Check the engineoil level.
b. Slide the metal throttle
lever away from the
fuel tank to maximumposition (fully left).
NOTE: The engine stops automatically,or will not
start, if it is low on oil. Refer to the
oil fill procedure in
the Honda engine manual orto step 3,page 6.
c.
4. Be sure the sparkplug cable is firmly pushed
onto theplug.
If the engineis cold, close the choke by moving the gray lever.
d. If the engineis warm, close the choke by
moving the gray lever only half way
or not at
all.
Starting the Sprayer
e. Turn the engine switch toON.
NOTE: Refer to Fig. 1 as you start the sprayer.
1. When starting a sprayer that IS NOT PRIMED,
remove the spray tip.
2. Place the suction tube into paint,
the water or
solvent container, depending on whether you are
flushing or are ready to spray.
i .
.3. Open the blackfuel shutoff leverby pushing itin
the directionof the arrow.
A
CAUTION
Never try to start the engine unless fluid pressure is
relieved and the pressure control switch OFF.
is
Trying to'start the engine when isit pressurized
could damage the recoil system.
MOVING PARTS HAZARD
A rope which recoils too quickly may hit
someone and cause serious injury. The
rope could also jam in recoilassembly.
~
f.
Hold the frameof the sprayerwith one hand
and pull the starter rope rapidly
and firmly.
Continue holding the rope
as you let it return.
Pull and return the rope
until the engine starts.
g. Open the choke as soon the
as engine starts,
except in cold weather. In coldweather, leave
the choke closed for
10 to 30 seconds before
opening it tokeep the engine running.
6. Unlock thegun trigger safety.
308-620
9
Startup
h. Relieve pressureby opening the pressure
drain valve.
7. Prime thepump:
a. Place the suction tube in the bucket of paint,
water, or solvent.
i.
Close the pressure drain valve.
b. Open the pressure drain valve.
c. Set enginespeed to idle.
d. Move the pressure control switch to
ON. Tum
the pressure adjusting knob slowly until the
sprayer starts.
e. Run the pumpuntil fluid is flowing smoothly
from thepressure drain valve, indicating the
pump is primed.
f.
Move thepressure control switch toOFF.
g. If thepump was primed with water
or solvent,
remove the suctiontube from the wateror
solvent and place it inthe paint. Repeat steps
b throughf.
h. Close the pressure drain valve.
8. When the pumpis primed:
a. Remove the spray tip.
b. Set the engine speedto full flow,
c. Move the pressure control switch
to ON.Turn
the pressure adjusting knob slowly until the
sprayer starts.
d. Unlock the gun trigger safety.
e. Trigger the gun into the pail until fluid flows
from thegun. If pumping solventor solventbased paint, hold a metal part of the gun firmly
against a groundedmetal pail.
"
f.
Release the gun trigger
and lock thegun
trigger safety.
9. Move the pressurecontrol switch to OFF.
10
308-620
INJECTION HAZARD
To reduce therisk of serious injury from
fluid injection, never operate the spray
9. Install the spray
tip in the gun. See the separate
tip instruction manual, 307-848, supplied.
10. Move the pressure control switch ON.
to
11. Adjust the engine speed and
pump pressure.
Unlock the gun trigger safety. Trigger
the gun onto
a test paper to check the spray
pattern and atomization. Turn thepressure adjusting knob until.you
get a good pattern.
Then slowly lowerthe throttle
setting as faras you can without changingthe
spray pattern.
A
CAUTION
A
CAUTION
Always use the lowest needed
fluid pressure and'the
lowest needed throttle setting,
to increase the life of
the sprayer. Higher settings
cause excessive clutch
cycling, premature tip
wear and premature pump
wear.
Close the black fuel shutoff lever whenever
you are
transporting the sprayer
to prevent fuel from flooding
the engine.
Keep the sprayer upright
and level when operating it
and when transporting it. This prevents crankcase
oil
from leakinginto the combustion chamber, which
makes startup very difficult.
c
Startup
i'
Loss of Prime to Pump
Introductionof air into the pump, either by changing
Operating the sprayer
with the pump not primed can fluids
or due to a suctionleak, may resultin the loss of
no fluid is
lead to premature packingwear and/or damage to prime
to the pump. If the pump loses prime,
pumped.
To prime the pump, relieve
the pressure on the system
by opening the drain valve
and following the instruction
on Prime the pump, page 10.
Maintenance
INJECTION HAZARD
To reduce the riskof serious injury,
whenever you are instructed to relieve
pressure, follow thePressure Relief
Procedure on page12.
DAILY: Check the engine oil level and
fill as necessary.
DAILY: Check andfill the gas tank.
AFTER THE FIRST20 HOURS OF OPERATION
Drain the oil and refill with cleanoil.
WEEKLY Remove the coverof the air filterand
if necessary.
clean the element. Replace the element,
If operating in an unusually dusty environment, check
the filter dailyand replace.it, if necessary.
Replacement elements maybe purchased from your
local Honda dealer.
I
A
CAUTION
For detailed engine maintenance
and specifications,
refer to theSeDarate enclinemanual, SUDDlied.
WEEKLY: Check thelevel of the TSL in the displacement pump packing nut.
Fill the nut,if necessary. Keep
TSL in the nutto help preventfluid buildup on the
piston rod and premature
wear of the packings.
Monthly: Remove the front cover
(9) and fill the
cavity in the connecting rodwith non-detergent motor
oil 1/4 in. below the surface. See Fig.
4.
AFTER EACH100 HOURS OF OPERATION:
Change the oil. Refer to the engine manual for addi.
tional maintenance instructions.
SPARK PLUG: Use only an (NGK)
BPRGES or a
(NIPPONDENSO) W20EPR-U plug. Gap the plug to
0.028 to 0.031 inch (0.7 to 0.8 mm). Use a spark plug
wrench when installingand removing theplug.
Fill to .25 in. below surA face with non-detergent
Fig. 4
I
Pressure Relief Procedure
Engage the gun safety latch.
Turn the engine switch
to OFF.
Move the pressure
control ON/OFF switch toOFF.
Disengage the gun safety latch.Hold a metal part
of the gun firmly to a groundedmetal pail. Trigger
the gun to relieve pressure.
5. Engage thegun safety latch.
6. Open the pressure drain
valve. Leave thepressure
drain valveopen until you are readyto spray
again.
7. Disconnect the sparkplug cable.
Ifyou suspect that the spray
tip or hose is completely
clogged, or that pressure has notbeen fully relieved
after following the steps above,
VERY SLOWLY
loosen thetip guard retaining nutor hose end coupling
to Relieve the pressure
gradually, then loosencompletely. Now clear the
tip orhose.
1.
2.
3.
4.
INJECTION HAZARD
The system pressure must be manually
. relieved to prevent the system from
starting or spraying accidentally.Fluid
under high pressurecan be injected through the
skin andcause serious injury.To reduce the riskof
an injury from injection, splashing fluid,
or moving
parts, follow thePressure Relief Procedure
whenever you:
are instructedto relieve the pressure,
0 stop spraying,
check or service any of the system equipment,
0 or install or clean the spray
tip.
Flushing
When to Flush
1.
New SDraver. This sprayer was factory tested
in
lightweight oil,which was left
in toprotect the pump
parts.
Before using wafer-base paint,flush with mineral
spirits, followedby a soapy water flush, and then a
clean waterflush.
Before using oil-base paint,flush with mineral
spirits.
2. Chanaino Colors, Flush with a compatible solvent
such as mineral spirits
or water.
3.
Chanaina from water-base to oil-base oaint. Flush
with warm, soapy water, then mineral spirits.
5. Storaae.
Wafer base paint: flush with water, then mineral
spirits and leave the pump, hose
and gun filled
with mineral spirits. Shut
off the sprayer, remove
the spark plug cable,
and open the pressure drain
valve to Relieve the pressure. Leave the
drain
valve open.
Oil base paint: flush with mineral spirits and leave
the pump, hose and gunfiiied with mineral spirits.
plug cable,
Shut off the sprayer, remove the spark
and open the pressure drain valve
to Relieve the
pressure. Leave the drain valve open.
4. Chanoina from oil-baseto water-base Daint.~Flush
with mineral spirits,followed by warm, soapy
water, and then aclean water flush.
A
CAUTION
To prevent pump corrosion or damage to pump
components, never leave water
or any typeof paint
in the sprayer whenit is notin use. Pump the water
or the Daint out with mineral soirits.
12
308-620
’
6. StartuD after storaae.
1
Before using wafer-base paint, flush out the
mineral spirits with soapy
water, and then with
clean water.
When using oil-basedpainf, flush out the mineral
spirits with the paint
to be sprayed.
Flushing
c
How to Flush
I
A
FIRE AND EXPLOSION HAZARD
To reduce static sparking and splashing,
always remove the spray
tip from the
When changing fluids, do not
drain all of the firstfluid
gun, and hold a metal
part of the gun
from the suction tube before inserting the suction tube
firmly to the side of a grounded metal
pail when
into the another fluid. Not doing
so may introduce
flushing.
excessive air into the pump and cause the pump
to
lose prime.
6. Follow Startup on page9.Keep the gun triggered until clean solvent comes from the nozzle.
After moving the suction tube to a new fluid, pump the
Release the trigger and lock the gun
trigger safety.
first fluid and any trapped air, out through the drain
valve before beginning
to pump the new
fluid to the
ouns.
CAUTION
'
NOTE: The word solvent refers to water or oil-based
solvent.
1. Follow thePressure Relief Procedure, page 12.
i
2. Remove thefilter bowl and screen; see instruction
manual 308-249, supplied.Install the bowl and
support, without the screen, to flush. Clean the
screen separately.
3. Close the pressure drain valve.
I
Put the suction tubein a groundedpail of solvent.
5.
Remove the spray tip from the
gun.
CAUTION
Operation with the pump not primed
can lead to
Dremature packing wear and damage
to the pump.
I
7. Check allfluid connections for leaks. Relieve the
pressure beforetightening any connections. Start
the sprayer. Recheckthe connections for leaks.
8. Remove the suction tube from the solvent pail.
Unlock the guntrigger safety. Trigger the gun to
force solvent from the hose.
Do notlet the pump
run dly for more than30 seconds, to avoid damaging the pump packings. Relieve the pressure.
9.
4.
A
Unscrew thefilter bowl andreinstall the clean
screen. Reinstall the bowl, handtight only.
10. Follow Storage or ChangingColors, on page 12
Relieve the pressure.
308-620
13
Troubleshooting
INJECTION HAZARD
To reduce the risk of serious injuly,
whenever you are instructed to relieve
pressure, follow thePressure Relief
Procedure on Daw 12.
Check everything in the chart before disassembling the sprayer. See pages
37 through 43 for description of
referenced parts
14
308-620
I PROBLEM
The pump output is low on
the upstroke.
CAUSE
SOLUTION
The inlet screen (102)
is clogged.
Clean the screen.
A pistonball (121) is not seating.
I Sewice the pistonbalkheck. See p
The output of the pump
is
low on the downstroke oron
both of the strokes.
Replace the packings. See page 32.
A o-ring (119) in the displacement pumpis
Replace the o-ring. See page
32.
The inlet screen (39)
is clogged.
Clean the screen.
The piston packings are worn or damaged. Replace the packings. See page 32.
Clean the intakevalve. See page 32.
An intake valveball is not seating
vroperly.
The engine speed is too
low.
Increase the throttle setting. See Step
11, page
110.
The paint leaks into the wet- The wetcup is loose.
cup.
Tighten the wetcupjust enough to stop leakage.
The throat packingsis worn or damaged.
Replace the packings. See page 32.
A displacement rodis worn or damaged.
Replace the rod. See page32.
The inlet screen (39) is clogged.
Clean the screen.
The pressure setting is too
low.
I Increase the Dressure. SeeSteD 11. Daae 10. I
The engine speedis too low.
i:
I
Replace the clutch. See page
25.
The clutch is worn or damaged.
The fluid delivery islow.
a g c 1
The piston packings are worndamaged.
or
worn or damaged.
I
Increase the throttle setting. See Step
11, page
10.
I
The fluid filter (21), the tip filter or the tip is Clean the filter.See page 13.Or, see the gun
clogged or dilly.
instruction manual.
There is a large pressure drop
in the hose. Use
Fluid is spitting from the gun. There is airin the pump or the hose.
to prime
The pump is difficult
a larger diameter hose.
Check and tighten all the fluid connections.
Reprime the pump. See page 10.
The tip is paltially clogged.
Clear the tip. See
the gun instruction manual.
The fluid supply is lowempty.
or
Refill the fluid supply. Prime the pump. See
page 9. Check the fluid supply often
to prevent running the pump
dry.
There is airin the pump or the
hose.
Reduce the engine speedand cycle the pump
as slowlyas possible during priming.
The intake valve is leaking.
Clean the intake
nicked or wornand that theball seats well.
Reassemble the valve.
The pump packings are worn.
Replace the pump packings. See page
32.
The paint istoo thick.
Thin the paint according to the supplier’s
recommendations.
The engine speedis too high,
Decrease the throttle setting before priming the
pump. See Step 7 , page 10.
308-620
15
Drive Housing, Connecting Rod, Crankshaft
6. Remove and inspect the crankshaft(8) and the
connecting rod(10).
INJECTION HAZARD
To reduce the risk of serious injury,
whenever you are instructedto relieve
pressure, iollow the Pressure Relief
Procedure on page 12.
Installation
7. Lubricate the insideof the drive housingbronze
bearing withSAE non-detergent oil.
Removal
NOTE: Inspect parts as theyare removed. Replace
parts that are worn or damaged.
8. Install the connectingrod.
1. Remove the displacementpump. See page 32.
9. Place the large washer
(5) and then the small
washer (3) on the crankshaft
(8).
2. Remove the pressurecontrol (25). See page 18.
3.
Remove thethree drive housing screws and
lock
washers (15, 16). See Fig.5 on page 17. 10.
4.
Remove the twopinion housing screws(69) and
lock washers (16). See
Fig. 5 on page17.
Insert the crankshaftinto the bearingin the drive
housing (6) and connecting rod (10).
5. Tap the lower rearof the drive housing(6) with a
plastic malletto loosen thedrive housing. Pull the
drive housing straightoff the pinion housing.
A
CAUTION
I
Do not allow the gear(19) to fall; it may stay atI
tached to the drive housingor to the pinion housing. !
Do not lose thethrust balls (sa and 2d) or let them
fall between the gears, which
will damage the drive
housing if not removed.
The balls, which are heavily
covered with grease, usually stay in the housing
recesses, but could be dislodged. If the balls are not
in place, the bearings
will wear prematurely.
16
308-620
11. If replacing the complete
drive housing assembly
(6). brush G-n lubricant (supplied)
on allgear
teeth. Then recoat the gear
teeth with bearing
grease (supplied). Pack the remaining bearing
grease into the bottom part of the drive housing.
Use all of the grease. See Fig. 6.
12. Install gear(19).
13. Install new gasket (64).
14. Work backwards fromstep 4 to reassemble.
,'
,
Drive Housing, ConnectingRod, Crankshaft
A
A
A
A
Torque to 100 in-lb (11 N.m)
Quantity of three
Quantity of one
Lubricate withSA€
non-detergent oil
Fig. 5
05833A
Brush G-n lubricant
and recoat with bearing
grease
Pack with bearing grease
Fig. 6
308-620
17
Pressure Control
7. Loosely install the screws (24) and then torque
them to21 in-lb (2.4 N.m).
INJECTION HAZARD
To reduce the risk of serious injury,
whenever you are instructed to relieve
pressure, follow thePressure Relief
Procedure on page12.
NOTE: See Fig. 7for this procedure.
1.
8. Install the front cover(9). Connect theharness (A)
to the control module leads
(B).
9.
Install the junction box. Be sure no leads are
pinched against the mounting face of the
pinion
housing.
NOTE: The pressure control (25) cannot be repaired
or adjusted.If it has malfunctioned, replaceit.
1.
Remove the front cover(9). Remove the screws
(65) and lock washers (37). Lower thejunction box
(63).
2. Disconnect the harness connector
(A) from the
(63).
control module inside the box
3. Remove the screws(24). Pull forwardon the
pressure adjusting knob and tip the pressure
control (25) forward andup to detachit from the
drive housing(6).
4. Guide the harness(A) through the pinion housing
and drive housingand remove the pressurecontrol.
5.
6.
18
Guide the harnessof the new pressure control
through the drive housing and pinion housing
passages.
Install the newpressure control. Tip the pressure
control downand back into the drive housing(6).
Do not pinch or damage the harness(A).
308-620
63
Fig. 7
37
65.
A
06012
Torque to
21 in-lb (2.4N.m)
05834
Control Module
303 304 63
71
INJECTION HAZARD
To reduce the riskof serious injury,
to relieve
whenever you are instructed
pressure, follow thePressure Relief
Procedure on page12.
NOTE: See Fig. 8 for this procedure.
1. Relieve pressure.
2. Remove the junction box screws (65) and
lock
junction box (63).
washers ( 37) and lower the
3. Remove screw(71) and disconnect harness
connector (A) from the control modulein the
junction box.
4. Remove screws (303) and lock washers (304),
disconnect all wires.
5. Install new control module. Reconnectall wires.
A
I
315
I
314
1
A T 0 pressure control switch
Fig. 8
moa2
2 to reassemble.
6. Work backwards from step
ON/OFF Switch
4.
I
INJECTION HAZARD
To reduce the riskof serious injury,
to relieve
whenever you are instructed
pressure, follow thePressure Relief
Procedure on page12.
1. Relieve pressure.
2. Remove the junction box screws (65) and lock
washers and remove the junction box (63).
Disconnect the red wires from the ON/OFF switch
and remove the switch.
5. Install the switchso the internaltab of the antirotational ring engages
with the vertical groove in
the threadsof the switch and the external tab
engages with the blind hole
of the junction box.
6. Powder the insideof the rubber boot (315) with
talcum, then shake the excess out
of the boot.
Install the nut and rubber boot and tighten.
7. Reconnect the ON/OFF switch
red wires.
8. Install thejunction box. Be sure no leads are
pinched against the mounting face.
Also be sure
3. Remove thering (314) and rubber boot (315). the gasket (68)
is installed.
308-620
19
Pressure Transducer
INJECTION HAZARD
To reduce the riskof serious injury,
whenever you are instructedto relieve
pressure, follow thePressure Relief
Procedure on Daae 12.
NOTE: See Fig. 9 for this procedure.
1. Remove the displacement
pump. See page 32.
2.
Use a pull-twist motionto remove the transducer
3.
Clean paint residue from the hole
in the manifold;
do not scratch the surfaceof the hole.
(22) from the pump manifold.
4. Lightly apply oil to theO-ring of the new transducer.
5.
Install the transducerin the pump manifold, while
guiding theO-ring and backup ring intoplace.
6. Align the holesin the transducer as shown by the
arrows in Fig. 9.
7. Install the displacementpump. See page33.
i..
20
308-620
Suction Hose
..
Models 231-550 and 231-552
INJECTION HAZARD
To reduce the risk of serious injury,
whenever you are instructedto relieve
pressure, follow thePressure Relief
Procedure on page 12.
1. Separate the drain hose
(31) from the suction hose
(32).
2. Pull upward on the hose
(32) while unscrewingit
from theinlet tube (40). The hose coupling(A)
threads will engage and the hose will separate
from the tube.
3. Replace the o-ring (110) if it is worn or damaged.
4. Lubricate theo-ring (110) and the inlet tube(40)
threads with light grease.
“WI
5. Align the suction hose coupling with the threads
of
the inlet tube(40). Tighten the hose onto the tube at
i:
40
least 4 turns to ensure that the threads have
&.e&
gaged and can function as a swivel joint.
A
CAUTION
Fig. 10
Model 231-550 Shown
c6w4
Misalignment or cross-threading will damage the
parts and/or create shavings which can cause the
o-ring (110) to leak.
308-620
21
Drain Valve
Repair
INJECTION HAZARD
To reduce therisk of serious injuty,
whenever you are instructed to relieve
pressure, follow thePressure Relief
Procedure onDaqe 12.
Q Apply thread sealant
/4f
2. If replacing the gasket (43a)
or seat (43b), pry out
the gasket.
NOTE: Whenever the gasket (43a)
is removed, replace it with new
a one.
n
Apply grease
to face of base
3. Coat theO-ring (43d) with grease. Press the stem
into the valvebody. Install the spring, washers and
spring retainer into the valve body.
A
Handle shown
In closed position
4. Place the seat (43b)
in the valve body so the
lapped sideis toward the ball. Apply small
a
amount of grease to the new gasket (43a)and
install it in the valve body.
2
le
1. Unscrew the spring retainer (43h) from the valve
body. Remove the spring, washers
and stetwball.
Clean any debris from the
ball or seat area.
439
J
NOTE: The gasket will protrude from the
end of the
valve until the valve
is tightened into pump, which
correctly seats the gasket.
P3h
Replacement
1. Apply a small amount
of thread sealant ontothe
valve (43) threads. Tighten the
valve into the pump
manifold to 185 in-lb (21 Nm).
Fig. 11
02819
1. Tum the handle (46) to the closed position. Drive
out the pin (45). Remove the handle.
2.
Remove thebase (44).
3. Unscrew the drain valve (43). The gasket (43a)
and seat (43b)will stay in the valve.
22
308-620
2.
Lightly greasethe face of the base (44) and install
the base. Tum the stem
so the pin hole is vertical.
3. Securely install the
handle (46) and drive pin (45).
INJECTION'HAZARD
To reduce the risk of serious injury,
keep
the drain valve clean. Check
drain valve
operation before spraying.
I
$
Pinion,'Clutch, Clamp, Field, & Engine
If servicing clutch components
only. see page25.
If no service is needed for internal parts
of pinion
housing, remove drive assembly (drive and pinion
housing) fromclutch housing. See page25.
Pinion Housing Removal
8. Reassemble to drive housing.
A
I
CAUTION
I
Do not lose the thrustball (2d). Refer to theCAUTlON on Daae 16 for more information
NOTE To disassemble the pinion, go
to page 24. To
disassemble moreof the sprayer, go to page 25.
To
reassemble the sDraver from this ooint. skio ahead to
INJECTION HAZARD
To reduce the risk of serious injury,
whenever you are instructed to relieve
pressure, follow thePressure Relief
Procedure on page12.
NOTE: Refer to Fig. 12 for Steps 1 to 5.
1. Follow thePressure Relief Procedure, page 12.
2. If the drive housing has not
yet been removed,
follow steps1 through 5 of DRIVE HOUSING,on
page 16.
A
A
See page 24.
Brush withG-n lubricant.
3. Remove thetwo bottom screws (59) and lockwashers (16) first, then remove the top three
screws (59) and lockwashers
(16).
4. Pull thepinion housing (2) away from the clutch
housing (1). The armature(5lb) will come with it.
5. Pull the armature(51b) off the hub(2h"J of the
pinion housing.Also see Fig.13.
6. If replacing the complete pinion housing assembly
(2), brush G-n lubricant (supplied) on the pinion
shaft teeth.Then recoat the pinion shaft teeth with
bearing grease (supplied). Pack the remaining
bearing greasein the bottom partof the pinion
housing. Useall of the bearinggrease.
7 . Install new gasket
(64) (supplied).
Fig. 12
05836A
308-620
23
Pinion Housing
Repairing the Pinion (Fig. 13)
KEY
NOTE: Use ahydraulic press if you purchase the pin-
Round steel bar to
ush on shaft (21)
B Rydraulic press
C Steel bar stock
D Two steel blocks
E Press platform
A
ion parts individually. Otherwise,use Repair Kit No.
223-189, which includes the shaft and bearings
pre-assembled and lubricated.
If using RepairKit 223-1 89, follow Steps 1to 7, below.
1. Remove thesmall ring (2j) from thehub (2h) and
the large ring (2k)
from the bearing recessof the
housing (2a).
2. Push on frontof the shaft (2f) to force the bearing
and hub assembly outof the housing(2a).
3. Press the small bearing (2n) and roller clutch(2m)
out of the pinion housing (2a). Remove the new
bearing and roller clutch from the shaft of the kit
and press it into the housingto the dimension
shown. Directional arrowof roller clutch(2m) must
face bearing (2n). See Detail A.
4. Inspect O-ring (2p)and replace if necessary.
5. Install the shaftassembly, pushing itto the shoulder of the housing(2a).
6. Install rings (2k and 2j). Ring (2k) must be installed
with bevel facing backof pinion housing.
7. Go to Reassembly, page 29, Step 7 , or continue
on page 24.
If you purchasedparts separately, follow steps 1to
9, below. Disassembleonly as far as needed for the
parts being replaced.
NOTE:. The old bearing (29)will be damaged as it is
removed. Haveone on hand if you need to remove it
for any reason. Always
replace bearing 29 if installing
a new hub 2h.
1. To replace small bearing (2n) or roller clutch (2m),
press the old one out of the pinion housing (2a).
2. Remove the small ring (2j) from the hub (2h). Remove the snap ring (2k) from the bearing recess
of the housing (2a).
24
308-620
A
29
Fig. 14
3. Push on the front of the shaft (2f)to force the
bearing and hub assembly out of the housing
(2a).
4.
Using a hydrauk press, place pieces of steel
bar stock on the inner raceof the large bearing
(2s) and press the shaft through the hub and
bearing. See Fig. 14.
5. Apply lubricant to the parts asshown in Fig. 13.
6. Press fit the following parts:
Small bearing (2n)and then the roller clutch
(2171). yith the directional arrow facino the
small bearing, into the rear
of the housing (2a).
See Detail A in Fig. 13.
Large bearing(29) to shoulder of shaft (2f).
Hub (2h) onto the shaft (2f)
all the wayto the
large bearing (29).
7. Install the shalt assembly, pushing it tothe shoulder of thehousing (2a).
8. Install the rings (2k and 2j).
9. Skip aheadto Reassembly, page 29, Step 6, or
continue on page 25.
(..
Clutch
3. Pull the drive assembly
(D) away from the clutch
housing (1).
INJECTION HAZARD
To reduce the riskof serious injury,
whenever you are instructed to relieve
pressure, follow thePressure Relief
Procedure on page12.
NOTE: The clutch assembly (51) includes the armature (51 b)
and rotor (5la). The armature and rotor
must be replaced togetherso they wear evenly.A new
hub (2h) shouldbe installed as wellto ensure long
clutch life.
NOTE: If the drive assembly(D) is not yet separated
from theclutch housing (l), follow Steps 1to 4. Otherwise, start at Step5.
NOTE: Refer to Fig. 15 for this procedure.
1. Follow thePressure Relief Procedure, page 12.
2. Remove thetwo bottom screws (59) and lockwashers (16) first,then remove the top three
screws (59) and lockwashers (16).
(.
A
CAUTION
The sprayer may become out
of balance with the
drive housing andpinion housing removed. Support
the rearof the cart to prevent thepartially disassembled sprayer from falling
over.
4. The armature (51 b)will move with the drive assembly. Remove the armature
from the pinionhub
(2h).
A
CAUTION
Examine the splined hub
(2h", Fig. 13,page 24) for
wear. Replace as needed. Follow thePinion Housing
instructions, page24.
5. There are two ways
to remove the rotor(51a).
a. Remove the four socket
head capscrews (57)
and lockwashers (16). Install two
of the screws
in the threaded holes (E)
in the rotor. Alternately tighten the screws
until the rotor comes
off. See Fig. 15.
b. You can use a standard steering wheel puller
(A). However,two 1/4-28 x 3or 4 in. long
screws (8) are also needed. Replace the short
screws of the steering wheelpuller with the
longer screws(B).Turn the screws(B) into the
threaded holes (E)of the rotor (51a).iighten
the capscrew(C) of the tool until the rotor
comes off. See the Detailin Fig. 15.
6. Skip ahead toReassembly, page 31, Step 6, or
continue on page27.
308-620
25
Clutch
05837A
Fig. 15
Engine
..
(:
NOTE: The engine must be removed before the
Clamp and Clutch Housingcan be removed.
A
CAUTION
A
CAUTION
t
I
The sprayer will experience poor clutch life
ifa
replacement engineis purchased from another
vendor. The engine forthis sprayer is manufactured
by Honda to a special Graco specification.
1. Working under the mounting plate
(A), remove the
two lock nuts (78) and then pull the screws(77)
out of the base of the engine. Remove the screw
(61),lock washer(62) and washer(60). Disconnect the red wire(5) from the engine lead (D).
Disconnect the black
and white wires from the
field. Pull the cable (E)carefully through the grom16
met (50) before removing the engine. See Fig.
and 17.
2. Lift the engine carefully and place
on ita work
bench.
3.
Remove theField and Wiring
Harness, Clamp
and Clutch Housing, as instructed on page
28.
NOTE: All service to the engine mustbe performed by
an authorized Hondadealer.
LA To engine alternator.
Fig. 16
Bottom View of Engine and Cart
Fig. 17
A Apply lowstrength thread locker
05838,
"6
308-620
27
NOTE: Refer to Fig. 18.
Field & Wiring Harness
n
\
"
L
1, Back out thefour setscrews (58) holding the
field
(53) to the clutch housing (1) approximately 3
turns.
2. Pull out the field. The field fits closely to theclutch
housing and must be removed carefully to prevent
jamming.
3. Pull the plastic caps(B) off the wire screws(79) in
both places on the field. Removethe screws and
remove the wire(A).
4. Skip ahead toReassembly, page 29, Step 4 or
Fig. 18
continue on page 28.
05839
Clamp
NOTE: A standard steering wheelpuller and two
1/4-28 x 3 or 4 in. long screws are required to remove
the clamp.
1
NOTE: Refer to Fig. 19.
1. Loosen thetwo screws (57) on the clamp (55), B
working through the slot at the bottom
of the clutch
housing (1).
A
C
2. Install two screws (B) of the tool
(A) in two of the
threaded holesin the clamp(55).Tighten the
screw (C) until the clamp comesoff.
3. Skip ahead toReassembly, page 29, Step 2, or
continue below.
Fig. 19
05840
Clutch Housing
NOTE: Refer to Fig. 20.
I
A
CAUTION
If the clutch housingis removed from the engine
a
Special alionment tool is reouired to reinstallit.
I
1. Remove the four capscrews (83) and lockwashers
(84) which hold the clutch housing (1) to the engine.
2.
Remove the enginekey (56).
3. Pull off the clutch housing(1).
4. Skip ahead toReassembly, page 29, Step 1.
28 308-620
Fig. 20
05841A
A
Reassembly
To check the dimension, place a rigid, straight
steel bar (B) across the faceof the clutch housing
(1). Use an accurate measuring device
to measure
the distance between the
bar and the faceof the
clamp. Adjust the clamp as necessary. Torque
the.
two screws(57)to 120 in-lb (14Nm).
CAUTION
The sprayerwill be out of balance when only the
engine andclutch-housingare installed. Support the
to prevent the sprayer from falling
rear of the cart
1. Install theclutch housing (l),
capscrews (83)and
lockwashers (84)on the engine. Use special
alignment tool to position clutch housing on engine. Torque screws(83)to 200 in-lb (22Nm).
2. Install the engine shaftkey (56). See Fig. 21.
3. Press theclamp (55) onto the engine shaft (A).
mm)
Maintain the1.41 inch fO.O1 (35.8 f0.25
dimension shownin Fig. 22.
4.
Connect the wiresof the harness(D)with the
screws (79) in both places on thefield (wires can
be attached to either connection).Pull the plastic
caps (C) up and snap them over the screws. Install
the field in the clutch housing. Push the wire
harness through theslot in the clutch housing.
Align the setscrew holesin the field and the clutch
housing (1). Hand tighten the setscrews(58)
oppositely and evenly. See Fig. 21.
Toque the screws oppositely and
evenly to 25 in-lb (2.8 N 'm).
.Aslot.
Toque the screws to 200 in-lb (22
A
Apply low strength thread locker
to set
screws (58).
&, Toque the screws to 120 in-lb~(l4N.m).
Fig. 21
79
05842A
308-620
29
ReassermQBy
A
A
The face of the housing.
1.41 +.010inch (35.8
*.Zsrnrn)
A
CAUTION
The sprayer willbe out of balance when
only the
engine and clutch housing are installed. Support the
rear of the cart to prevent the sprayer from
falling
Toque the screws to
120 in-lb (14 Nm).
nver~
5. Place theengine (48)assembly on the cart. Align
6
the mounting holes. Carefully guide the engine
wire and wiring harness
(E) from the field, through
the appropriate grommets(50) in the mounting
(77) and lockplate (A). Install the flange screws
nuts (78). Install the screw(61), lock washer (62),
and washer(60). Tighten all three screws. Connect
(B),and connect
the engine wire to the red wire
the black and white wires
as shown in the Detail
drawing in Fig. 16.
/
Fig. 22
30 308-620
05078
..
;'
1
Reassembly
8. Clean the face of the armature (52b). With the
flat sideof the armature facing the rotor (51a),
slide the armatureonto the hub (2h) in the drive/
pinion assembly (D) just until the chamfered end
of the hub (2h) protrudes through the armature.
See
Detail 6, Fig. 23. There will be significant re7. After installing the rotor(5la) the air gap must
be
sistance.
Attachthe cardboard spacer, supplied
adjusted between the rotor
and the field(53). Use
with
the
clutch
kit, to the face of the armature.
shims provided with the clutch repair kit. Push the
Engage
the
tabs
on the spacerwith the slots in
shims between the rotor
and the field. Tighten the
the
armature
or
bend
tabs over outside diameter
setscrews (58)oppositely and evenly. Drag on all
of
armature.
four shims mustbe even. Pull the shims out. Pull
the enginerecoil rope to assure that the engine
Brace the cart againstwall
a to keep it from rollturns freely, and there is no contact between the
ing. Pushthe drivelpinion assembly onto the
rotor and the field. If there is contact, loosen the
clutch housing (1). There will be significant resissetscrews and reposition thefield.
tance. Whenthe mating surfaces of the drivelpi6. Be sure the faceof the rotor (51a) and the clamp
(55) are free of all burrs. Install the rotor, lockwashers (16) and capscrews(57). Torque the
capscrews to 7 ft-lb (9.5Nm). See Fig. 23.
NOTE: With the autogap style armature,the gap between the rotor and the armatureis critical for proper
operation. The clutch kits with an autogap style armature include a cardboard spacer (pln 186-857) to set
the proper gap. This spaceris for useQ& during
installation.
nion assembly and the clutch housing (1) are
flush, removethe drive/pinion assembly. Remove
the cardboardsoacer.
9. Assemble thedrive assembly (D)to the clutch
housing (l),using the capscrews (59) and lockwashers (16). See Fig. 23.
i
Fig. 23
05843A
308-620
31
Displacement Pump Repair
Removing the pump (See Fig.24.)
INJECTION n m m
To reduce the risk of serious injury,
whenever you are instructedto relieve
pressure, follow thePressure Relief
Procedure on page12.
NOTE: Packing RepairKit 238-692 is available.
Reference numbersof parts included in the kit are
marked with an asterisk, i.e., (121*). For the best
results, useall the new partsin the kit, even if the old
ones still look good.
1. Flush thepump, if possible. Relieve pressure. Stop
the pump with the
piston rod (107) in its lowest
position, if possible.
2.
Remove thefilter (21).
3. Remove suction hose
or tube (40).(FOr suction
hose, referto page 21.
NOTE: If repairing only the intake valve assembly, go
to Intake valverepair, page34.
4. Use a screwdriver
to push the retainingspring (12)
NOTE: To minimize down time, and for best
the sprayer
up and push out thepin (11).
20) whenperformance, clean the transducer (see page
ever you repack the pump. Replace these parts as needed.
5. Loosen the screws(17). Remove thepump (18).
A
39
Fig. 24
32
308-620
Toque to
50 ft-lb (68 N.m)
Model 231-363 Shown
05844
Displacement PumpRepair
Installing the pump (See Fig. 24 and 25.)
1. Mount the pump on
the drive housing.Tap it into
the alignmentpins with a softhammer. Tighten the
screws (17) to 50 ft-lb (68 Nm).
4. Tighten the packing nut
(102) just enoughto stop
leakage, but no tighter.
Fill the packing nutlwet-cup
1/3full with GracoTSL. Push the plug (123)into
the wet-cup.
MOVING PARTS HAZARD
Be sure the retaining spring(12) is firmly
in the grooveall the way around,to
prevent thepin (11) from workingloose
due to vibration. See Fig. 25.
If the pin works loose, it or other parts could break
off due to the force of the pump action. These parts
could be projected into the air and result in serious
injury or property damage, including the pump
connecting rod or drive housing.
2. Align thehole in the rod (107) with the connecting
rod assembly (IO). Use a screwdriver to push the
retaining spring(12) up and push in the pin (11).
(12)into place around
Push the retaining spring
the connecting rod.
3.
Reconnect the suction and drain hoses. Install the
front cover(9). On Thelo-boy sprayer inspect the
O-ring (110). Replace theO-ring if it is worn or
damaged.
A 50
Toque lo
ft-lb (68 N m )
Fig. 25
S-?
17A
L!l
308-620
06WE
33
Displacement Pump Repair
Intake valve repair(See Fig. 24)
1. Remove the suctiontube or hose. See Step3,
Removing the pump.
2. Unscrew theintake valve (118). Remove the
o-ring (119*), ball guide (120). stop pin (122') and
ball (121') from the valve.
3. Clean and inspect the parts for wear
or damage.
Replace parts as needed. Use a new
o-ring
(119
'
)
. If no furtherservice is needed, reassemble
the pump.
2. Stack these parts onto the
piston valve (108) one
(126') and u-cup
at a time: the backup.washer
(125'), the female gland (114*),alternately three
plastic (112') with two leather packings (Il3*),and
the male gland(111.). See Fig. 26.
A
A
Disassembling the pump
(See Fig. 26.)
3. Use a plastic malletto tap the.piston rod (107)
down, and then pull the rodout through the bottom
of the cylinder.
4.
Piston packlngs
intake valve
-a
123
102
1. Remove theintake valve (118).
2. Loosen the packing nut (102).
~Thmatpackings
A
(102) and throat packRemove the packing nut
ings.
5. Loosen thejam nut (117). Remove the cylinder
(115) and the o-ring (116*).
6.
Clamp theflats of the piston rodi.n a smooth jaw
vise. Use an open-end wrenchto loosen thenut
(110) and then unscrew thepiston valve (108).
7. Remove all parts from thepiston valve (108).
Reassembling the pump
NOTE: Alternate plasticand leather packings. See Fig.
26. The lips of the throat V-packings face
down. The
lips of the piston V-packings face up. Incorrect installation damages the packingsand causes pump leakage.
NOTE: Soak the leather packings
in oil before reassembling the pump.
1. Check the outside of the
piston rod (107) and the
Fig. 26
(115) for wear. Replace worn
inside of the cylinder
parts to ensurea good seal with the new packings.
34
308-620
O3148A
i
Displacement Pump Repair
3. Tighten the nut (110) onto thepiston valve (108)to
5 in-lb (0.57 Nm). See Fig. 27.
A
n
2
7. Place the flatsof the rod (107) in a smooth jaw
Toque to
5 in-lb (0.57 N.m)
vise.
Apply sealantto
these threads
110
'111
'113 112'
'125
'126
Fig. 27
6. Hand tighten the valve
into the piston rod just until
28.
the nut(110) contacts the rod. See Fig.
8. CAREFULLY tighten the nut (110) against the
piston rodto 28-30 ft-lb (38-40 Nm). See Fig. 28.
A
Use two wrenches to maintain the alignment mentioned in NOTE below Step3.
114*
108
1720
NOTE: Note the alignment of the piston (108) to the
nut (110). Maintain this alignment through Step 8.
A
A
Toque nut against md
to 28-30 fl-lb (38-40N.m)
Do not allow nut (110)
to move relativeto
piston (108) when
tightening piston
against rod.
110
4. Clean all residue from the piston valve threads.
Apply adhesive (supplied) around the top three
threads of the piston valve.
5. Place the ball(109') on the piston valve
(108). See
Fig. 27.
A
CAUTION
Step 6, tightening the piston valve into rod,
the is
critical. Follow the procedure carefully
to avoid
damaging the packings by overtightening.
108
9. Stack these parts one at a time
into the topof the
manifold (101): themale gland (106'), alternately
three plastic packings(104') with two leather
(103').
packings (105'), and then the female gland
See Fig. 30.
IO. Install the packingnut (102)and plug (123), but
leave loose fornow. See Fig. 30.
308-620
35
Displacement Pump Repair
11. Place a newO-ring (116') firmly in the cylinder
groove. See Fig. 29.
15. Torque the cylinderjam nut (117) to 73 ft-lb
(98 Nm). See Fig.29.
12. Coat the piston rod and packingswith oil. Carefully
slide the assemblyinto the topof the cylinder
(115). See Fig. 29.
16. Install the pump. Seepage 33.
13. Put themanifold upside down in a vise. Fully
thread the jam nut (117) onto the cylinder (115).
Guide the rodkylinder assembly down through
the
manifold (101). Screw thecylinder (115) into the
manifold. See Fig.29.
A Torquejamnut(ll7)
to 73 ft-lb (98 N.m)
A.
A'
A
2
Toque cylinder (115)
Into manifold(101) to
53 ft-lb (71 Nm)
Torque intakevalve (116)
'
Into cyllnder
(115)to
53 ft-lb (71 N.m)
Piston assembly
I 1
14. Place theball guide (120), stop pin (122) and ball
(121') in the cylinder(115). Screw theintake valve
into the cylinderand torque to 53 ft-lb
(71 Nm). This will also properly torque the cylinder
into the manifold. See Fig.30.
36
308-620
A
A
Leather packings
Poly packings
LIPS ofv-packings
must face down
A Lips
A
of V-packings
must face up
Torque to 53 ft-lb
(71 N.m)
Displacement Pump Parts List andDrawing
Model 235-699, Series A
Includes items101 to 127
Ref
No. Part No.
101
102
103
104
1 05
I 06
107
108
109
110
111
112
113
114
115
11 6
117
118
119
120
121
122
123
124
125
126
127
Description
MANIFOLD, pump
187-611
PACKING NUT
176-758
176-757' GLAND, female, throat
3
V-PACKING, plastic, throat
176-997'
V-PACKING, leather, throat
176-755'
176-754' GLAND, male. throat
DISPLACEMENT ROD
235-709
PISTON, valve
218-197
105-444' BALL, 5/16", piston
176-751
NUT, hex, 1/2-20 unf-2b
176-750' GLAND, male, piston
176-882' V-PACKING, plastic, piston 3
1 76-749'
V-PACKING, leather, piston 2
180-073' GLAND, female, piston
CYLINDER, pump
235-708
PACKING, O-ring, PTFE
108-526'
1
187-614 NUT, jam.l-3/8-18 unef-2b
224-966
INLET VALVE
111-603'
PACKING, wring,PTFE
176-760
GUIDE, ball
105-445'
BALL, 1/2", inlet
176-759' PIN, ball stop
160-656
PLUG
102-969' SEALANT
105-522' PACKING, u-cup, polyurethane 1
186-652' WASHER, backup, steel
188-663A LABEL, Warning
A Extra warning labels available free of charge.
'Supplied in Repair Kit 238492.
Keep a repair kit
on hand to reduce
down time.
P l i
0314BA
308-620 37
Model 231-363
Upright Sprayer Parts Drawing
7A
A
A
A
38
16 69
I
,
, DETAll
Label
See the detail. above.
See page 42 for the parts.
308-620
05846A
Upright Sprayer Parts List
Model 231-363, Series A
Ref.
No.
Part No. Description
1
2
6
7
8
8a
8b
9
10
11
12
13
14
15
191-207
238-684
238-691
176-904
235-558
180-131
107434
187-789
218-359
176-818
176-817
112-777
190-321
103-345
16
17
18
105-51 0
111-706
235-699
19
20
238-802
162-453
21
235-677
22
23
.24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
43
235-009
108-850
111-704
238-799
111-705
290-175
220-918
187-603
108-982
181-102
186-549
178-342
106-062
101-242
104-811
100-020
108-691
236-675
189-928
235-014
43a
43b
111-699
187-615
187-621
168-110
224-968
111-599
187-623
187-622
43c
43d
43e
43f
439
43h
Qty.
HOUSING, clutch
HOUSING, pinion
DRIVE HOUSING
LABEL, designation
CRANKSHAFT
'
BEARING, thrust
BEARING, thrust
COVER, front, blue
CONNECTING ROD
PIN, headless, 3/8"dia. x 1"
SPRING, retaining
SCREW, mach, ovl hd,10-24 x .375
HANGER, pail
SCREW, socket head,
1/4-20 X 1-1/4"
LOCKWASHER, 1/4"
CAPSCREW, 7/16-14x 1444"
PUMP, displacement
37
See parts on page
GEAR REDUCER
NIPPLE, hex, 1/4 npsm x
1/4 npt,1-3/16"
FILTER, fluid
See Manual 308-249 for parts
PRESSURETRANSDUCER
SCREW, filh, 8-32 x 1-1/4"
SCREW, filh, 10-24 x 1-5/8"
SWITCH, pressure control
SCREW, filh, 8-32 x 2-1/2"
LABEL. identification, front
HANDLE & HOSE RACK
SLEEVE
CONNECTOR, tube
CLIP, spring
DRAIN TUBE
CLIP, spring
WHEEL, serni-pneumatic
RING, retaining, wheel
HUBCAP
WASHER
PLUG, tubing
STRAINER, inlet, 1/2-14 npsm
TUBE, suction
DRAIN VALVE
See Fig.11
GASKET
SEAT
HOUSING, valve, drain
O-RING
STEM, valve, drain
WASHER, flat
SPRING, compression
RETAINER, spring, valve
~
~~
1
1
1
1
1
1
1
1
1
1
1
2
1
3
16
2
1
1
2
1
1
1
2
1
3
1
1
2
1
1
1
1
2
2
2
4
2
1
1
1
1
1
1
1
1
1
1
1
Ref.
No.
Part No. Description
44
45
46
47
48
49
50
51
51a
51 b
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
71
72
73
224-807
111-600
187-625
100-721
108-879
223-410
108-805
238-798
108-800
188-426
183-401
108-803
108-801
100-644
108-851
100-469
100-133
238672
191-258
111-703
189-91 9
290-228
187-963
100443
110-637
290461
109-032
74
75
76
77
111-590
183-350
108-068
110-837
78
79
80
81
110-838
109-033
222-01 1
100-078
82
83
84
85
86
157-021
109-031
104-008
221-183
108-868
87
101 -344
89
238-803
QV.
BASE, valve
PIN, grooved,3/32 x 1"
HANDLE, drain valve
PLUG, pipe, headless, 1/4-18 nptf
ENGINE, gasoline
CART
BUSHING, snap
CLUTCH ASSEMBLY
ROTOR, clutch
ARMATURE, clutch
FIELD, clutch
PIN, dowel, 5/16 x1"
CLAMF: mounting, rotor
KEY, parallel, 3/16" sq x 7/8"
CAPSCREW, hexsch. 1/4-28 x 1.0"
SETCREW, 1/4"
CAPSCREW, sch. 1/4-20 X 3/4"
WASHER, plain, type "8". 3/8"
CAPSCREW, hex hd, 3/8-16 x 3/4"
LOCKWASHER, spring, 3/8"
JUNCTION BOX
GASKET, housing
SCREW, filh, 10-24 x 3"
PLATE, designation
LABEL, caution
GASKFT
-. ._. .- .
SCREW, socket head,1/4-20 x 1"
SCREW. 10-24 X 318"
LABEL. warning 1
SCREW, recess pnh,
No. 10-24 x 1/4"
self-tap
BUTTON. snap
WASHER, plain, 0.90"
PIN, spring, straight, 3/16" 2
SCREW, serrated flange, hexhd,
5/16-18 unc-2ax 1.5"
LOCKNUT, heavy hex,5/16-18 3
SCREW, bdgh, 6-32 x 3/16"
GROUNDING CLAMP&WIRE
SCREW, pan hd,No. 8 x 5/16" 1
See PressureControlParts, page 43
LOCKWASHER, internal, No.8
CAPSCREW,1/2 Sch, 5/16-24 X 1"
LOCKWASHER
CONDUCTOR, electrical
CLAMF: wire 1
See Fig. 16
SCREW, Cap, 5/16-18 X 7/8"
See Fig. 16
LABEL. warning, See page 42
A Exfra warning lablels
"F".
1
1
1
1
1
1
2
1
1
1
1
1
1
1
6
4
5
1
1
1
1
1
4
1
1
i
2
1
4
2
2
2
2
1
1
4
4
1
1
1
available free
of charge.
308-620
39
Lo-Boy Sprayer Parts Drawing
Model 231-550, Series A
33
\
A
40
See page 42 for parts
308-620
I
39
\
38
05980A
'
I
Lo-Boy Sprayer PartsList
, .
:
(,
Model 231-550, Series A
Ref.
No.
Part No.
Description
1
2
6
7
8
8a
8b
9
10
11
12
15
191-207
238-684
238-656
176-904
235-558
180-131
107-434
187-789
21a 3 5 9
176-618
176-817
103-345
16
17
18
105-510
11 1-706
235-699
19
20
238-802
162-453
21
235-677
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
43
235-009
108-850
11 1-704
238-799
111-705
290-175
220-918
187-603
108-982
191-640
191-619
178-342
106-062
101-242
104-811
100-020
108-691
235-004
187-627
235-014
43a
43b
43c
43d
43e
43f
439
43h
44
111-699
187-615
187-621
168-110
224-968
111-599
187-623
187-622
224-807
HOUSING, clutch
HOUSING, pinion
DRIVE HOUSING
LABEL, designation
CRANKSHAFT
BEARING. thrust
BEARING, thrust
COVER, front, blue
CONNECTING ROD
PIN, headless,3/8" dia. x 1"
SPRING, retaining
SCREW, socket head,
1/4-20 X 1-1/4"
LOCKWASHER, 1/4"
CAPSCREW, 7/16-14 X 1 4 4 "
PUMP, displacement
see parts on page 37
GEARREDUCER
NIPPLE, hex, 1/4 npsmx
1/4 npt,1-3/16"
FILTER, fluid
See Manual 308-249 for parts
PRESSURE TRANSDUCER
SCREW, filh, 6-32 x 1-1/4"
SCREW, filh, 10-24 x 1-518"
SWITCH, pressure control
SCREW, filh, a 3 2 x 2-1/2"
LABEL, identification, front
HANDLE & HOSE RACK
SLEEVE
CONNECTOR, tube
TUBE, drain
DRAIN TUBE
CLIP, spring
WHEEL semi-pneumatic
RING,~retaining, wheel
HUBCAP
WASHER
PLUG, tubing
STRAINER, inlet, 3/4-16 unf
TUBE, suction
DRAIN VALVE
See fig. If
GASKET
SEAT
HOUSING, valve, drain
O-RING
STEM, valve, drain
WASHER, flat
SPRING, compression
RETAINER, spring, valve
BASE, valve
Qty.
1
1
1
1
1
1
1
1
1
1
1
3
16
2
1
1
2
1
1
1
2
1
3
1
1
2
1
1
1
2
2
2
2
6
2
1
1
1
1
1
1
1
1
1
1
1
1
Ref.
No.
Part No.
*45
111-600
46
187-625
47
100-721
48 108-879
49
238-685
50
108-805
51
238-798
518
51b
53 238-803
54
108-800
55
188-426
56 183-401
57 108-803
58 108-801
59 100-644
60
108-851
61 100-469
62 100-133
63
238-672
64
191-258
65
111-703
66 184-919
67 290-228
68
187-963
69
100-643
71
110437
72
290-061
73 109-032
74 111-590
75
183-350
76
106-068
77
110-837
78
110-838
79
109-033
80
222-011
61 100-078
82
157-021
83
109-031
84 104-008
85 221
-183
86 108-868
87
101-344
89
109 103-473
Description Qty.
PIN, grooved, 3/32 1"
x
1
HANDLE, drain valve 1
1
PLUG, pipe, headless, 1/4-18 nptl
ENGINE, gasoline 1
CART
1
BUSHING, snap
2
CLUTCH ASSEMBLY
1
1
ROTOR, clutch
1
ARMATURE, clutch
1
FIELD, clutch
-1
PIN, dowel,5/16x 1"
1
CLAMP, mounting, rotor
KW, parallel, 3/16"sq x 7/8"
1
CAPSCREW, hex sch,1/4-28 x 1.0" 6
4
SETCREW, 1/4"
5
CAPSCREW, sch, 1/4-20 X 3/4"
318"
WASHER, plain, type
1
1
CAPSCREW, hex hd, 3/8-16 X 3/4"
LOCKWASHER, spring, 3/8"
1
1
JUNCTION BOX
GASKET, housing
1
SCREW, filh, 10-24 x 3"
4
1
PLATE, designation
1
LABEL, caution
1
GASKET
2
SCREW, socket head, 1/4-20 x 1"
SCREW, 10-24 X 3/8"
1
1
LABEL, warning
SCREW, recess pnh,
4
self-tap 'F", No. 10-24 x 1/4"
2
BUTTON, snap
WASHER.. ,Dlain.. 0.90"
2
PIN, spring, straight, 3/16"
2
SCREW, serrated flange, hexhd,
5/16-18 unc-2a x 1.5"
2
LOCKNUT heavy hex, 5/16-18
3
SCREW, bdgh, 6-32 X 3/16"
2
GROUNDING CLAMP&WIRE
1
SCREW, pan hd,No. 6 x 5/16"
1
See PressureControl Parts, page 43
LOCKWASHER, internal, No.8
1
CAPSCREW,1/2 sch, 5/16-24 X 1"
4
LOCKWASHER
4
1
CONDUCTOR, electrical
1
CLAMP, wire
See Fig. 16
1
SCREW, cap, 5/16-18 x7/8"
See Fig. 16
LABEL, warning, See page 42
1
CLAMP, cable
2
A Extra warning Is{bels
"6".
available free
of charge.
308-620
41
Pinion Assembly Parts List and
Drawing
Assembly 238-684
Ref
No.
Part No.
Descrlptlon
2a
191-208
105-489
102-873
100469
107-394
185-916
.PINION HOUSING
.PIN
BEARING
.BALL
BEARING
.PINION SHAFT
BALL BEARING, large
.HUB. armature
2b
2c
2d
2e
21"
29"
2h"
109402
183-515
Ref
QtY
1
2
1
1
1
1
1
1
No.
Part No.
Description
2y
10&880
113-094
191-258
110407
109-001
165-295
.RETAINING RING, small
.RETAINING RING, large
.GASKET, housing
.CLUTCH, roller
BEARING, needle
.O-RING
2k
21"
2m"
2n"
2p"
i
Q ~ Y
1
1
1
1
1
1
"included in Repair Kit No. 223-189.
2m"
2n"
Accessories
Displacement Pump Repair Kit
238-692
Parts includedin the kit areshown on page37.
Hose 114 in. x 50 ft
1/4-18npsm female swivel,both ends.
223-541
220-955
Contractor Spray Gun
RAC" IV Dripless" Tip Guard
220-422
Safety feature that reduces the risk
of injection injury.
DANGER LABELS
The English language DANGER label shown on
page 4 is on your sprayer.If you have painterswho
do not read English, order of
one
the following labels
to apply to your sprayer. The drawing below shows
the best placement
of these labels for
good visibility.
Order the labels directly from Graco, free of
charge. Toll Free: 1-800-328-0211 Apply other
language here
French
Spanish
German
Greek
Korean
English
42
308-620
187-784
185-962
186-042
186-046
186-047
187-791
;
..
I
Pressure Control PartsList
238-672 Pressure Control for the GM 3000 Sprayers
Ref
No.
Part No.
Descrlptlon
Qty
1
1
301
28C-340
HOUSING, box, junction
302
238-660" TRIAC
303
100-035
SCREW, panhead, 10-24 x 2 inch
304
157-021" LOCKWASHER, No. 10
305
108-783" SCREW. filhd.
306 100-284"
NUT. hex
307 107-070"
SCREW, flat hd
308
103-181"
LOCKWASHER
309
100-072" NUT, hex
310
108-219"
RECTIFIER, bridge
2
3
1
1
2
2
2
1
Parts DrawingPressure Control
305" 310"
Ref
Description
No.
Part No.
311
312"
313
314
315
316
238-676
CONDUCTOR, electrical
191-242 PLATE,
module
105-679
SWITCH, toggle
105-658
RING, locking
105-659
BOOT, toggle
23E791
CONDUCTOR. electrical
QtY
1
1
1
1
1
1
**Includedin Repair Kif No. 238-66 1.
A Replacement Danger and Warning labels, tags, and
cads are available free.
Wiring SchematicPressure Control
To Microswitch
A T 0 pressure control switch
A A p p l y thennopaste between 301 and312;
310and312:302and312
06Ma
308-620
43
Dimensions
Technical Data
..........................
............
Engine 4.0 horsepower, Honda
Maximum working pressure
3000 psi (210 bar)
Noise level
Sound power ..............................
102 dB(A)
Sound pressure
87 dB(A
Measured at 3.1 feet (1 m) under maximum operating
conditions per lS0-3744
540 (142)
Cycleslgallon (liter)
Maximum delivery
0.62 gpm (2.35 literlmin)
Fuel tank capacity................. 0.66 gallons (2.5 liter)
Maximum tip size .... 0.025 @ 2000 psi (137 bar) with latex
12 mesh
Inlet paint strainer
stainless steel screen, reusable
Outlet paintfilter.. ................. 60 mesh (250 micron)
stainless steel screen, reusable
1/2 in. npt (f)
Pump inletsize..
Fluid outlet size
114 in. npsm from fluid filter
Wetted parts
Displacement pump
stainless steel, carbon steel,
polyurethane, uhmw polyethylene,
aluminum, PTFE Delrinq leather
Filter ........... aluminum, carbon steel, stainless steel
Pressure Control..
stainless steel, brass
Suction Hose... Nitrile (synthetic rubber)with nylon lining
NOTE: PTFE and Delrins is a trademark
of the
Company.
.............................
...........................
...............
.............................
..........................
...............
.......
Models 231-363 & 231-550
94 Ib (43 kg)
Weight
(dry wlo packaging)
Height
30 in. (762 mm)
Length
28 in. (711 mm)
i
\.
22 in. (589 mm) Width
Graco Phone Number
TO PLACE AN ORDER, contact your Graco distributor, or call this number to identify the distributor closest
to you: 1-800-3674023 Toll Free
...............
WARRANTY
Graco Warranty and Disclaimers
be free from defectsin material and workmanship on
Graco warrants all equipment manufactured
by it and bearing its name to
for use. As purchaser's sole remedy for breach of this
the dateof sale by anauthorized Graco distributor to the original purchaser
warranty, Graco will, for period
a
of twelve months from the date
of sale, repair or replace any part
of the equipment proven defective, with the exceptionof defects in parts onthe drive trainlgear boxon EM and GM sprayers or power
train on EH and GH
sprayers, which will be repaired
or replaced for twenty-four months from the of
date
sale for Gas-Hydraulic (GH)and Gas-Meof sale for Electric-Mechanical (EM), Electric-Hydraulic (EH), 390st
chanical (GM) sprayersand for thirty-six months from the date
and 490st sprayers, This warranty applies only when the equipment is installed, operated
and maintained in accordance with
Graco's written recommendations.
This warranty does not cover,
and Graco shall not be liable for, any malfunction, damage or wear caused
by faulty installation,
misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering. or substitution
of
non-Graco component parts. Norshall Graco be liablefor malfunction, damage or wear caused
by theincompatibility with Graco
equipment of structures, accessories, equipment or materials not supplied
by Graco, or the improper design, manufacture, installation, operation or maintenance
of structures, accessories, equipment or materials not supplied
by Graco.
This warranty is conditioned upon
the prepaid returnof the equipment claimedto be defective toan authorized Graco distributor
Ifthe claimeddefect is verified, Graco will repair or replace free
of charge any defective parts. The
for verification of the claim.
If inspection ofthe equipment does not disclose any
equipment willbe returned to the original purchaser transportation prepaid.
defect in material or workmanship, repairs will be madea reasonable
at
charge, which charges may include the costs
of parts,
labor and transportation.
DISCLAIMERS AND LiMlTATlONS
The termsof this warranty constitute purchaser's sole and exclusive remedy andinare
lieu of any other warranties (express or
implied), Including warranty of merchantability
or warranty of fitness fora particular purpose, and
of any non-contractual
liabilities, including product liabilities,
based on negligence or strict liability. Every
l o rn of liability for direct, specialor consequential damages orloss is expressly excludedand denied. In no case shall Graco's liability exceed the amount of the purchase price.
Any action for breach
of warranty mustbe brought within two(2) years of the dateof sale.
EQUIPMENT NOT COVEREDBY GRACO WARRANTY
for a particular purpose,with
Graco makes no warranty,
and disclaims all implied warranties of merchantability and fitness
respect to accessories, equipment, materials, or components sold but not manufactured
by Graco. These items soid, but not
if any, of their manufacturer.
manufactured by Graco (such as electric motor, switches, hose, etc.) are subject to the warranty,
Graco will provide purchaser with reasonable assistance
in making any claim for breach of these warranties.
Sales Offices:Atlanta, Chicago, Detroit,Los Angeles
Foreign Offices: Belgium; Canada: England; Korea; Switzerland; France; Germany; Hong Kong; Japan
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440-1441
44
308-620
PRINTED IN U.S.A. 308-620 March 1996
(.,

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