Graco 308253D WATERBASE COMPATIBLE Ultra-lite Pistol Grip Flo-Gun Owner's Manual

308 -253
INSTRUCTIONS-PARTS LIST
This manual contains important
warnings and information.
READ AND RETAIN FOR REFERENCE
ORAC0
Rev. D
Supersedes Rev. B
and PCN Rev. C
WATERBASE COMPATIBLE
Ultra-lite
TM
Pistol GripFlo-Gun
Model 235-627, Series B
4000 psi (280bar) Maximum Working Pressure
Model 235-628, Series B
6000psi (415 bar) Maximum Working Pressure
Model 237-607, SeriesA
4000 psi (280bar) Maximum
-
WARNING
01809A
Hazard of Using Fluids Containing Halogenated Hydrocarbons
with Models 235-627 and 237-607
Never use 1,1, I-trichloroethane, methylene chloride, other halogenatedhydrocarbon solvents or fluids concould result ina serious chemical
taining such solvents with Models235-627 and 237-607 Flo-Gun. Such use
reaction, with the possibility of explosion, which could cause death, seriousbodily injury and/or substantial
properly damage.
Consult yourfluid suwliers to ensure thatthe fluids beina used are comDatible with aluminum Darts.
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440-1441
@COPYRIGHT1992,GRACO INC.
,
High Pressure Spray Can Cause Serious Injury. For Professional Use Only.
Observe All Warnings.Read and understandall instruction manuals before operating equipment.
FLUID INJECTION HAZARD
General Safety
This is ahigh pressure dispensing gun. Fluid dispensed
under high pressure could be injected
through your skinand
into your body. This
could cause extremely serious injury,
including the needfor amputation. Also,fluid injected or
splashed into the eyes or
on the skin can cause serious
damage.
e
Never point the gun at anyone or at anyofpart
the body.
e
Never put hand or fingers over the nozzle.
e
Never wipeoff build-up around thefluid nozzle until pressure is fully relieved and the
gun trigger lockis engaged.
e
Never try to stop or deflect leaks with your hand or body.
Fluid Nozzle Safety
Use extreme caution when cleaning or changing fluid
the
nozzle. If the nozzle clogs while dispensing, fully release the
trigger immediately. Always follow the
Pressure Relief Procedure, below, before wipingoff build-up around the nozzleor
to clean it.
removing the nozzle
Pressure Relief Procedure
To reduce the riskof serious injury, including fluid injection,
splashing in the eyes oron skin, or Injury from
moving parts,
always follow this procedure whenever the dispensing equipment is shut off, when checking or servicing any part
of system, when installing, cleaning or changing nozzles and whenever you stop dispensing.
1. Fully release the gun trigger and set the gun trigger
by lock
rotating the triggerlock forward. SeeFig 2, page 4.
2. Shut off the supply pump.
3. Hoidametalpartofthegunfirmlytothesideofagrounded
Medical Alert Fluid Injection Wounds
metaiwastecontainer.Disengagethetrigger1ockbyrotating
ifany fluid appears to penetrate your skin, get EMERGENCY
the trigger lock backward. See Fig
3. Trigger the gun to
MEDICAL CAREAT ONCE. DO NOT TREAT AS A SIMPLE
relieve fluid pressure.
CUT. Tell the doctor exactly what
fluid was injected.
4. Fully release the gun trigger and set the gun trigger lock by
rotating the trigger lock forward.
Note to Physician: injection into the skinis a traumatic injury.
5. Open thepump drain valve to help relievefluid pressure in
It is important to treat theInjury surgically as soon as
the pump, hose, and gun. Triggering the
to relieve
gun pressure maynot besufficient. Have a container ready to catch
possible. Do not delay treatmentto research toxicily. Toxicity
the drainage.
is a concern with some exotic materials injected directly into
the blood stream. Consultation with a plastic surgeon or
6. Leave thedrain valve openuntil you are readyto dispense
again.
reconstructive hand surgeon may
be advisable.
If you suspect that the nozzle
or hose is completely clogged
or that pressure has
not beenfully relievedafter followingthe
Trigger Lock
Whenever you stop dispensing, even for a moment, always steps above, veryslowly loosen the hose
end couplingand
set thegun trigger lock. Fully release the trigger and rotate therelieve pressure gradually, then loosen completely. Now clear
trigger lock forwardas shown inFig 2, page 4.
the nozzle or hose obstruction.
e
Always follow the Pressure Relief Procedure,at right,
before cleaningor removing thefluid nozzle or servicing
any system equipment.
-
EQUIPMENT MISUSE HAZARD
General Safety
Any misuseof the dispensing equipment or accessories, such
as overpressurizing, modifying parts, using incompatible
chemicals and fluids, or using worn or damaged parts, can
cause themto rupture and resultin serious injury,including
fluid injection and splashing
fluid in the eyes oron the skin, or
in fire, explosion or property damage.
Never alter or modify any part of this equipment;
doing so
could cause itto malfunction.
System Pressure
The MaximumWorking Pressure of Gun Models235-627 and
237-607is4000psi(280bar).TheMaximum WorkingPressure
ofGunModel235-628is6000psi(415bar).Donotexceedthe
maximum working pressure of your
gun model.
Be sure that all dispensing equipment and accessories are
properly ratedto withstand the pressures developed
by your
system. Never exceed the maximum working pressure of any
component or accessory usedin your system.
Check the gun and
all dispensing equipment regularly
Fluid Compatibility
and repair or replace worn or damaged parts immediately.
Be sureall fluids and solvents used are chemically compatible
with theWened Parts shownin theTechnlcal Data. Always
Read and foilow thefluid and solvent manufacturer'sliterature regarding the use
of protective eyewear, gloves,
read thefluid and solvent manufacturer's literature before
clothing, respirator and other equipment.
using any fluids or solvents
in your system.
2 308-253
HOSE SAFETY
General Safety
High pressure fluid in the hoses canbe very dangerous.If the
hose develops a leak, split or rupture due tokind
any ofwear,
damage or misuse, the
high pressure fluid emitted from it can
cause a fluid injection injury or other serious injury or property
damage.
Handle and route hoses carefully.
- Do not pull on hoses to move equipment.
- Do not use fluidsor solvents which arenot compatible
with the inner tube
and cover of the hose.
- Donotexposehosetoextremetemperatures;checkwith
yourhosesuppliertodeterminetemperaturetolerances.
e
Tighten all fluid connections securely before each use.
H~~~pressurefluidcan dislodge a loose
coupling
or allow
high pressure fluid to beemitted from the coupling.
e
Never usea damaged hose.
Before each use, check the entire hose for Cuts, leaks,
the
abrasion bulgingCovers 01 damage Or Of
hose couplings.If any of these conditions exist, replace
the hose immediately.
Fluid Hose Grounding Continuity
Proper hose grounding continuity
is essential to maintaining a
grounded dispensing system. Check the electrical resistance
If your hose doesnot
of yourfluid hoses at least once a week.
h&e a tag on it which specifies the maximum electrical resistance, contact the hose supplier
or manufacturer for the maximum resistance limits.
Use a resistance meter in the appropri.
ate range for your hose
to check the resistance.If the
resistance exceedsthe recommended limits, replace
it irnme-
Pump:groundthepumpbyconnectingagroundingwire(12
ga minimum) fromthe pump's groundinglug to atrue
earth
ground.
Aircompressororhydraulic powersupply:ground according tolocal code and manufacturer's recommendations.
Fluid hoses: use only grounded hoses with
a maximum of
500feet(150m)combinedhoselengthtoensuregrounding
continuity. Referto Hose Grounding Continuity,
above.
F1o-gun:obtaingroundingthroughconnectiontoaproperly
grounded fluid hose and pump.
Fluid supply container: accordingto local code.
Alisolventpailsusedwhenflushing,accordingtolocalcode.
Useonlymetalpaiis,whichareconductive.Donotplacethe
pail on a non-conductive surface, such
as paper of cardboard, which interrupts the grounding continuity.
To maintain grounding continuity when flushing or relieving
pressure alwaysholdametalpartofthegunfirmlytotheside
of a grounded metalpail, then trigger the gun.
Flushing Safety
Before flushing,be sure the entire system and flushing pails
Groundlng
To reduce the risk of static sparking, ground pump
the and all are properly grounded.
Refer to Groundlng,above. Always
use the lowest possible
fluid pressure, and maintain firm
other equipment used or located
in the dispensing area.
Check yourlocal electrical code for detailed grounding
inmetal-to-metal contact between the gun andgrounded
the
structions for your area and type
of equipment andbe sure to
metal pail during flushingto reduce the riskof fluid injection
ground all of the following equipment: injury, static sparking and splashing.
1.
Static electricity is created by the flow
of fluid through the
pump and hose.If every part of the equipment is not properly
grounded. sparking may occur, and the system
may become
3.
hazardous. Sparks may also occur when
plugging inor
can
ignite
fumes
a
power
supply
cord.
Sparks
unplugging
2.
from soivents and the
fluid being dispensed, dust particles
and other flammable substances, whether you
are pumping
indoors or outdoors, and cause a fire or explosion, serious
4.
injury, and property damage.Do not plugin or unplug any
power supply cords in the dispensing area when there is any
5.
chance of igniting fumes still in theair.
6.
If you experience any static sparking or feel even a slight
shock whileusing this equipment,STOP DISPENSING
IMMEDIATELY Check forproper grounding of the entire sys7.
of the probtem. Do not use the system again until the cause
lem is identified and corrected.
MOVING PARTS HAZARD
pump, or any other system component follow Pressure
the
Moving parts canpinch or amputate your fingers or other
body parts. Keep clear of moving parts when starting or oper-Relief Procedure onpage 2, to prevent thepump fromstartating your system. Before checking or servicing the gun,
ing accidentally.
IMPORTANT
Unled States Governmentsafety standards have been adopted under the Occupational
Safety and Health Act. These standards
1910, and the Construction Standards, Part1926 - should be consulted.
General Standards, Pati
- pafticularly the
308-253 3
Operation
WARNING
To reduce the riskof serious injury,including fluid
injection or splashing in the eyes or on skin,
on
always follow the Pressure Relief Procedure
page 2 whenever the dispensing equipment is
shut off, when checking or servicing any part of
system, when installing or changing nozzles and
whenever you stop dispensing.
Gun Trigger Lock
Always engage the trigger lock when the flo-gun is
not in use to prevent accidental triggering of the
gun.
Fluid flow rate iscontrolled at thepump. Adjust the
pump pressure to obtain the desired flow rate; use
lowest pressure necessary.
The pressure adjustment
will depend on the hose length, the viscosityof the
fluid, and the nozzle size.
To dispense fluid with thegun, start the supply pump,
disengage the trigger lock, and squeeze thetrigger in
all theway. Fluid flow begins with theslightest pressure and stops when trigger is released.
Fig 2
0161OA
To engage the gun’strigger lock, releasethe trigger
and rotate thetrigger lock forward as shown in Fig 2.
NOTE: Periodically inspect the ventin the gun handle
for build-up of fluid, which could indicate an internal
leak. SeeFig 1. Service thefluid tube and O-ring as
needed.
Fig 3
inspect for buildup of fluid, which
could indicate an
To disengage thetrigger lock, rotate the trigger lock
backward as shown in Fig 3.
internal leak
Fig 1
4 308-253
0181M
01807A
i
Service
Valve Seat andNeedle Service
WARNING
To reduce the risk of serious injury,including fluid
injection or splashing in the eyes or on the skin,
NOTE The factory setting on the valveis set to a 1
inch (25.4 mm) trigger travel and corresponding valve
opening. To adjust this setting,follow the valveadjustment procedure below.
Always follow the Pressure Relief Procedure
on page 2 before checking, adjusting, cleaning or repairing the gun or any part of the system.
If fluid continues to flow after the trigger is released,
the gun valve maybe obstructed or need adjustment.
The valve stem (24)or valve seat(26) may be worn or
damaged. Adjustor replace partsas instructed below.
After adjusting or servicing thegun, make sure
the fluid will not trigger on when thetrigger
lock is engaged. If fluid does flow, the gun is
.not assembled properly or the trigger lock is
damaged. Reassemble thegun or return itto
your nearest Graco distributor.
Do not use the
gun until the problem is corrected.
WARNING
If fluid continues to flow after thetrigger is re-
When removing thegun from the hose, be sure
to holdthe inlet fitting (19) securely to avoid
loosening the fluid tube (18) from thegun
body.
Ad]ustlng the Valve
1 . Follow thePressure Relief Procedure on page
2 and disconnect the gun from the hose.
ERVICE NOTES:
2. Loosen the stem nut(1) and spring housing (28).
1. Use Fig 4 (page7) or Fig 5 (page 9) to follow
See Fig 4 or 5.
the service procedures. Follow the torque, sealant
and lubrication notes for yourgun model.
3. Insert a 1/8 hex allen
wrench through the hole in
2. The numbers in parentheses in the text refer
to
the spring adjustment screw (21) and into the
reference numbersin the drawings.
spring housing (28).
3. The following repair kitsare available:
4. Turn the spring housing (28) and stem nut (1) to
change the trigger travel and the sizeof the valve
Gun
Repair Kit Description
Model
opening.
I
235-627
'235-658
235-627
235-875
235-627
235-869 20" needle, seat, urethane
seal
235-627
237-596 7.5" carbide needle, seat,
PUR seal
235-628
*235-829
235-628
237-607
I
235-875
*237-596
5. Using a 5/16in. wrench, tighten the stem nut (1)
to set the adjustment.
PTFE seal, O-rings only
I
6. Adjust the spring adjustment screw (21)to the
desired trigger pull force.
Carbide ball seat, urethane
seal
PTFE seal, O-rings only
I
7.5" carbide needle, seat,
PUR seal
PTFE seal, O-rings only 235-875
237-607
237-607
6 . 5 needle, seat, urethane
seal
235-869
20' SST needle, seat,PUR
seal
* These arethe normal Repair Kits for thegun model.
The other kits listed are optional.
NOTE: Repair Kit237-596 can alsobe used for gun
Model 235-627.
See the Parts Drawingfor yourgun mode1.A PTFE
Packing Conversion Kit, 235-875,is also available.
continued on next page
308-253 5
Service
Adjusting the Spring Tension
Follow the the Pressure Relief Procedureon page
2 and disconnect the gun from the hose. Turnthe
spring adjustment screw (21) as needed until the
spring force is adjusted to close the valve.
Inspecting the vahefor obstruction or damage
1. Follow the Pressure Relief Procedureon page
2 and disconnect the gun fromthe hose.
2. Disassemble the gun as instructed on page 8,
then clean and inspect the parts.
CAUTION
When tightening the inlet fitting (19), be sure to
grip the gun body (17), not the handle (14). This
reduces the chance of loosening the connections
3. Replace anyworn or damaged parts and reas-
semble thegun as instructed on page 8. Adjust
the free travelof the trigger as instructed in
Adjusting the Valve,
above.
Valve Needle and SealService
If fluid leaks past the v-block seal (3), thev-block seal
or valve stem (24) maybe worn or damaged.
To replace the seal or valve stem,
follow the procedure on the next page.
1. Read the WARNING on page 5.Follow the Pressure Relief Procedureon page 2 and
disconnect the gun from the hose.
2. Unscrew thespring retainer (21) and remove the
spring (4). SeeFig 4 or 5.
3. Unscrew thespring housing (28) with a 1/8 in.
hex allen wrench.
4. Unscrew the valve seatnut (26).
5. Remove the adjustment bracket (20) and stem
nut (1) from the stem.
6. Remove the valve stem (24).
9. Lubricate thev-block seal (3) and install it into the
fluid housing (17) with the lips of the sealfacing
into the housing.
10. Lubricate the seal retainer(27). Torquethe seal
retainer into the fluid housing to:
Models 235-627 and 237-607: 50-60 in-lbs
(5.6-6.8N-m).
Model235-628: 100-125 in-lbs (11.3-14.1
Nm).
11. Lubricate the valve stem threads (24) and install it
into the fluid housing (17). As the threads of the
stem enterthe v-block seal ( 3 , turn the stem
assembly clockwise until the stem stops advancing. Thencontinue turning the stemwhile applying a light force to position the stem through the
v-block seal.
CAUTION
Installingthevalve stem (24) without turning it
clockwise may damage thev-block seal and result
12. Thread the nut (1) to the end the valve stem (24).
13. Install theadjustment bracket (20) and spring
housing (28) onto the valve stem(24).
14. Lubricate thethread and O-ring sealing surface on
the valve seatnut (26). Torque the valve seat nut
into the fluid housing (17) to:
Models 235-627 and 237-607: 70-80 in-lbs
(7.9-9.0 Nm).
Model235-628: 100-125 in-lbs (11.3-14.1
Nm).
15. Lubricate the spring (4) and spring retainer
threads (21)and install them in the fluid housing
(17).
16. Insert a1/8 in. hex allenwrench through the
spring retainer (21) and into the spring housing
(28). Adjustthe trigger travel and valve opening to
the desired position.
7. Remove the seal retainer (27)and seal (3).
Replace the seal.
17. Using a 5/16 in. wrench,tighten the stem nut (1)
to set the adjustment.
8. Secure the gun fluid housing (17) in an assembly
fixture.
18. Adjust thespring adjustment screw (21) to the
desired trigger pull force.
6 308-253
22
A
5
h
v
:
i lI
20
-\/"
"
.
\
8
A
..""
NU I tS:
A Torqueto 6-10 in-lbs (0.68-1.13 Nom)
A Torque to 70-80 in-lbs 17.9-9.0 N v n )
A Apply high strength anaerobic sealant(red)
A Apply lithium base greaseto threads
A Apply lithium base grease
A When
removing fluid hose, use wrench on fitting(19)
hex to avoid looseningfluid tube (16)
A Torque to 50-60 in-lbs (5.6-6.8 N m )
A Apply low strength anaerobic sealant( 6 h j
,
/'\\
/
f
I
I
I
I
I
I
I
Fig 4
/-
\
1 9/G\
\
A
\
\
01mw
'
1 7 A c 7 2 15 d A c
L
I-" Fig 48
14
308-253
I
I
O W 3
7
Service
Complete Disassembly& Assembly of Gun
1. Read the WARNING on page 5. Follow thePres-
sure Relief Procedure on page 2 and
disconnect the gun from the hose.
2. Unscrew the spring retainer (21) and remove the
spring (4). See Fig 4 or 5.
3. Unscrew thespring housing (28) with a 1/8
in.
hex allen wrench.
4.
Unscrew the valve seatnut (26).
5.
Remove theadjustment bracket (20) and stem
nut (1) from the stem.
6. Remove the valve stem' (24).
7. Remove the trigger retaining rings (E), rod (13),
and the trigger (29).
8. Unscrew thefluid tube and inlet fitting assembly
(18 & 19) from thefluid housing (17).
9. Remove the gun handle screws (9), gun handle
(14), trigger lock (151, ball (2) and spring (7).
10. Remove the seal retainer (27), seal and
(3),
O-rings (5& 6).
11. To assemble the gun, first secure thegun fluid
housing (17) in an assembly fixture. spring.
12. Lubricatethe v-block seal (3) and install it into the
fluid housing (17) with the lips of the seal facing
into the housing.
13. Lubricate the seal retainer(27). Torquethe seal
retainer into the fluid housing to:
Models 235-627and237-607: 50-60 in-lbs
(5.6-6.8N-m).
Model235-628: 100-125 in-lbs (11.3-14.1
Nm).
14. Lubricate and install the O-rings (5& 6) into the
fluid housing.
- 1
CAUTION
-7
Installing the valve stem (24) without turning it
clockwise may damage thev-block seal and result
in fluid leakaoe.
16:Thread the nut (1) to the end the valve stem (24).
17. Install the adjustment bracket (20) and spring
housing (28) onto the valve stem (24).
18. Lubricate thetrigger pivot holes (a) bracket guide
(b), and rod (13).
19. Install thetrigger (29) with the rod (13) and retaining rings (8).
20. Lubricate thethread and O-ring sealing surfaceon
the valve seatnut (26).Torque the valve seat nut
into the fluid housing (17) to:
Models 235-627 and 237-607: 70-80 in-lbs
(7.9-9.0 N m ) .
Model235-628: 100-125 in-lbs (11.3-14.1
Nom).
21. Lubricate thetrigger lock housing area (c). See
Fig 4a or 5a. Install thespring (7) into the fluid
housing (1 7).Place theball (2) in the centerof the
22. Align thetrigger lock detent (d) with the ball (2) as
shown in Fig 4a or 5a. Compress the ball (2) and
spring (7) with the trigger lock (15) until the trigger lock is seated in the housing. While holding
the trigger lock in place, install thegun handle
(14). Secure the gun handle with screws (9) prepared with low strength anaerobic sealant. Torque
the screwsto.6-10 in-lbs (7.9-9.0 Nom).
23. Install thefluid tube and inlet fitting assembly (18
& 19) through the gun handle (1 4)and screw it
into the fluid housing (17). Torque the fluid tube
and inlet fitting assembly (18& 19) to:
Models 235-627 and 237-607: 50-60 in-lbs
Nm).
Model 235-628: 200-250 in-lbs (22.6-28.2
Nm).
15. Lubricate the valve stemthreads (24) and install it
into the fluid housing (17). As the threads of the (5.6-6.8
stem enterthe v-block seal (3),turn the stem
assembly clockwise until the stem stops advancing. Thencontinue turning the stem whileapply24. Follow steps 14to 18 on page 6 to finish asseming a light force to position the stemthrough the
bling the gun.
v-block seal.
8 308-253
Model 235-628 shown
Service
"
.
NOTES:
A Torque to6-10 in-lbs (0.68-1.13 N.m)
A Torque to 100-125 in-lbs (11.3-14.1 Nem)
A Apply high strength anaerobic sealant(red)
A Apply lithium base grease to threads
A Apply lithiumbase grease
A When
removing fluid hose, use wrench
on fitting (19)
hex to avoid loosening fluid tube
(18)
A
/
/ /'\\
\\
\
mi
01
Apply low strengthanaerobic sealant(blue)
A Torque to 200-250
Fig 5
/
in-lbs (22.6-28.2 N m )
' Fig"5a-""""""""
L-
O'Q06,
308-253 9
I
Parts
Models 235-627 and 237-607
Pistol Grip
-
308 253
Model 235-627
Pistol Grip Flow Gun
Ref.
No. Part No.
1'
2
3*
4
5*
6
7
8
9
13
14
15
17
18
19
w.
Ret.
No.
Part No.
Description
100-975 NUT, hex; No. 5-40
1
102-233 BALL
1
102-921 SEAL, v-block; polyurethane
1
102-924 SPRING, compression
1
103-338 O-RING: VitonQ
1
112-085 O-RING; VitonQ
1
1
111-902 SPRING, compression
112-410 RING, retaining
2
111-904 SCREW, handle; flathd
2
189-055 ROD
1
188-231 HANDLE, plastic
1
1
188-232 LOCK, trigger
1
188-239 HOUSING, fluid; aluminum
188-240 TUBE, fluid; 304 stainless steel 1
188-241 FITTING, inlet; 1/4-18 npt;
1
316 stainless steel
20
21
22
24*
26*
27
28
29
34A
35A
188-246
186-247
188-253
188-836
188-263
188-271
188-275
237-604
186-377
188-378
BRACKET, adjustment
SCREW, spring adjustrrlent
NUT, nozzle
VALVE STEM
NUT, valve seat
RETAINER, seal
HOUSING, spring
TRIGGER
LABEL, warning
LABEL, instruction
Description
QV.
1
1
1
1
1
1
1
1
1
1
* These parts are included in Repair Kit 235-658,
which may be purchased separately. Seepage 5
for complete Repair Kit list.
A
Replacement Instruction and Warning labels are
available at nocost.
Technical Data
Model 235-627
Pistol Grip Flow Gun
Maximum Working Pressure...... 4000 psi (280 bar) Valve Orifice
Wetted Parts
FluidSection
.......................
................ 0.20 in. (5.08 mm) dia.
with tapered needle
........................
.........................
Aluminum
Height
...........................
1/4 npt(9
Size..........114 npt(f) withnut for metal
Won@
5.90 in. (149.86 mm)
Fluid Tube ....................304 Stainless Steel Width
1.20 in. (30.48
),,,,,,
Valve Needle . . . . . . . . . . . . . .17-4 PH Stainless Steel
Length .......................
8.05 in. (204.47mm)
Valve Seat ................17-4 PH Stainless Steel
Other ................ 316 StainlessSteel, Vitona, Weight
..........................
15.45 02. (439 9)
Polyurethane
Inlet PortSize
Outlet Port
flanged nozzle
Model 237-607 continued on next page
308-253
11
Parts
Model 237-607
Pistol Grip Flow Gun
Ref.
No. Part No.
1*
2
3*
4
5*
6
7
8
9
13
14
15
17
18
19
100-975
102-233
102-921
102-924
103-338
1 1 2-085
1 1 1-902
112-410
111-904
189-055
188-231
188-232
188-239
188-240
188-241
Description
Qty.
NUT, hex; No. 5-40
BALL
SEAL, v-block; polyurethane
SPRING, compression
O-RING: Vitonm
O-RING: Vitonm
SPRING, compression
RING, retaining
SCREW, handle: flat hd
ROD
HANDLE, plastic
LOCK, trigger
HOUSING, fluid: aluminum
TUBE, fluid; 304 stainless steel
FITTING, inlet: 1/4-18 npt:
316 stainless steel
1
1
1
1
1
1
1
2
2
1
1
1
1
1
1
Ref.
No. Part No.
Description
Qty.
20
188-246 BRACKET, adjustment
21
188-247 SCREW, spring adjust1ment
22
188-253 NUT, nozzle
24* 237-576 VALVE STEM
26* 237-577 NUT, valve seat
27
188-271 RETAINER, seal
28
188-275 HOUSING, spring
29
237-604 TRIGGER
34A 188-377 LABEL, warning
35A 188-378 LABEL, instruction
1
1
1
1
1
1
1
1
1
1
These parts are included in Repair Kit 237-596,
which may be purchased separately. Seepage 5
for complete Repair Kit list.
A
Replacement Instruction and Warning labels are
available at no cost.
Technical Data
Model 237-607
Pistol Grip Flow Gun
Maximum Working Pressure...... 4000 psi (280bar)
Outlet Port Size
Wetted Parts
FluidSection
Valve Orifice
.......................
Aluminum
Fluid Tube ....................
304 Stainless Steel
Valve Needle ............... Carbide and 17-4 PH
Stainless Steel
Valve Seat
Other
.................Carbide and 17-4PH
Stainless Steel
................ 31 6 Stainless
Inlet Port Size
12 308-253
...........................
Steel, Viton?
Polyurethane
1/4npt(f)
Height
.......... 1/4npt(f) with nut for
................ 0.20 in. (5.08mm) dia.
.......................
..........................
Length .......................
Weight ..........................
Width
Vitonm
metal
flanged nozzle
with tapered needle
5.90 in. (149.86mm)
1.20 in. (30.48mm)
8.05 in. (204.47mm)
15.45oz. (439g)
.,..
Notes
308-253 13
Model 235-628
Pistol Grip Flow Gun
a i mA
continued on nextpage
f 4 308-253
Parts
Model 235-628
Pistol Grip Flow Gun
Ref.
No.
1*
2
3*
4
5*
6
7
8
9
13
14
15
17
18
19
Part No.
100-975
102-233
102-921
102-924
102-982
107-505
1 1 1-902
112-410
111-904
189-055
188-231
188-232
188-242
188-248
188-957
Qty.
Description
NUT, hex; No. 5-40
BALL; stainless steel
SEAL, v-block: polyurethane
SPRING, compression
O-RING; PTFE
O-RING; PTFE
SPRING, compression
RING, retaining
SCREW, handle: flathd
ROD
HANDLE, plastic
LOCK, trigger
HOUSING, fluid; stainless steel
TUBE, fluid: stainless steel
FITTING, inlet: 1/2-14 npt
1
1
1
1
1
1
1
2
2
1
1
1
1
1
1
Ref.
No. Part No.
20 188-246
21
188-247
22 188-253
24* 236-234
26 236-235
27 188-271
28 188-275
29 237-604
34A 188-377
35A 188-378
Description
Qty.
1
1
BRACKET, adjustment
SCREW, spring adjustment
NUT, nozzle
STEM, valve
NUT,seat
RETAINER, seal
HOUSING, spring
TRIGGER
LABEL, warning
LABEL, instruction
1
1
1
1
1'
1
1
1
*
These parts are included in Repair Kit 235 -829,
which may be purchased separately. Seepage 5
for complete Repair Kit list.
A
Replacement lnstruction and Warning labels are
available at no cost.
Technical Data
Model 235-628
Pistol GripFlow Gun
Maximum Working Pressure...... 6000 psi (415bar)
Wetted Parts
............. 17-4 PH Stainless Steel
FluidSection
,
Fluid Tube
. . . . . . . . . . . . . . . . . .,304
. Stainless
Steel
Valve Needle ............... Carbide and 17-4 PH
Stainless Steel
Va/ve Seat .................Carbide and 17-4 PH
Stainless Steel
Other
............ Stainless
Steel,Viton4 PTFE
Polyurethane
Inlet Port Size...........................
1/2nptQ
Outlet Port Size. . . . . . . . . .1/4npt(0 with nut formetal
flanged nozzle
Valve Orifice
Height
Width
............ 0.19 in. (4.83mm)
dia.with
0.25 in. (6.35mm) carbide ball
.......................
.........................
5.90 in. (149.86mm)
1.20 in. (30.48mm)
.......................
8.05in. (204.47mm)
22.7 02. (635.6g)
Weight ..........................
Length
Won@and PTFE
308-253 15
The Graco Warranty and Disclaimers
WARRANTY
Graco warrantsall equipment manufacturedby it and bearing its name
to be free from defectsin material and workmanshipon the
date of saleby an authorized Graco distributor
to the original purchaser for use.
As purchaser's sole remedy for breach
ofthis warranty, Gracowill. for a period of twelve months fromthe date of sale, repair or replace part
any of the equipment proven defective.
This warranty appliesonly when the equipment is installed, operated
and maintained in accordance with Graco's written
recommendations.
This warrantydoes not cover, and Graco shall notbe liable for, anymalfunction, damageor wear caused by faulty installation, misapplication, abrasion, corrosion, inadequate
or improper maintenance, negligence, accident, tampering, or substitution
of nonGraco component parts. Norshall Graco be liable for malfunction, damageor wear caused by the incompatibilitywith Graco
equipment of structures, accessories, equipment
or materialsnotsupplied by Graco, orthe improper design, manufacture, installaor materials not supplied by Graco.
tion, operation or maintenance of structures, accessories, equipment
This warranty isconditioned upon the prepaid returnof the equipment claimed to be defective to an authorized Graco distributor
Graco will repair or replace free of charge any defective parts. The
for verificationof the claim. If the claimed defect is verified,
equipment willbe returned to the original purchaser. transportation prepaid.
If inspection of the equipment does not disclose any
defect in material or workmanship, repairs will be made at a reasonable charge, which charges
include
maythe costs of parts,
labor and transportation.
DISCLAIMERS AND LIMITATIONS
The terms ofthis warrantyconstitute purchaser's sole and exclusive remedy
and are in lieu of any other warranties (express or
implied), Including warranty of merchantablllty or warranty of fltness for a particular purpose,and of any non-contractual
liabilities, including product liabilities, basedon negligence or strict liability.Every form of liabiiityfordirect, special or consequential
damages or loss is expressly excluded
and denied. In no case shall Graco's liability exceed
the amount of the purchase price.Any
action for breach of warranty must be
brought within two(2) years of the date of sale.
EQUIPMENT NOT COVEREDBY GRACO WARRANTY
of merchantablllty and fitness for a particular purpose, with
Graco makes no warranty. and disclaims all implied Warranties
respect to accessories, equipment, materials,
or components soldbut not manufacturedby Graco. These items sold,
but not
manufactured by Graco (such as electric motor, switches, hose, etc.) are subject
to the warranty, if any, of their manufacturer.
Graco will provide purchaser with reasonable assistance
in making any claim for breach
of these warranties.
Graco Phone Numbers
TO P U C E AN ORDER, contact your Graco distributor, or call Graco: 1-800-328-021 1 Toll Free
FOR TECHNICAL ASSISTANCE,service repair information or answers about the application of Graco
equipment, call: 1-800-543-0339 Toll Free
Sales Offlces: Atlanta, Chicago, Dallas,Detroit Los Angeles, Mt. Arlington (N.J.)
Foreign Offlces: Canada; England; Korea; Switzerland; France; Germany;
Hong Kong; Japan
GRACO INC.
16 308-253
EO. BOX 1441. MINNEAPOLIS, MN 55440-1441
PRINTED IN U S A .
308-253 3/93Revised 10D4