Graco 238965 Operation manual

308701
Rev. C
INSTRUCTIONS-PARTS LIST
Pressure Relief Kit 238965
Model 238965
3000 psi (210 bar, 21.0 MPa) Maximum Working Pressure
WARNING
INJECTION HAZARD
Fluid under high pressure can be in-
jected through the skin and cause seri-
ous injury. To reduce the risk of an injury
from injection, splashing fluid, or moving parts, fol-
low the Pressure Relief Procedure whenever you:
Dare instructed to relieve the pressure,
Dstop spraying
Dcheck or service any of the system equipment,
Dor install or clean the spray tips.
Pressure Relief Procedure
1. Engage the gun safety latch
2. Turn the engine ON/OFF switch to OFF.
3. Flip the pressure control switch to OFF.
4. Disengage the gun safety latch. Hold a metal part
of the gun firmly to the side of a grounded metal
pail, and trigger the gun to relieve pressure.
5. Engage the gun safety latch.
6. Hold the pressure relief tube firmly to the side of a
grounded metal pail, and open the pressure relief
valve. Leave the valve open until you are ready to
spray again.
7. Disconnect the spark plug cable to prevent the
system from starting unexpectedly.
WARNING
FIRE AND EXPLOSION HAZARD
Before operating or flushing the pump,
ground the system per instructions in the
separate pump and gun instruction
manuals
If you suspect that the spray tip or hose is completely
clogged, or that pressure has not been fully relieved
after following the steps above, very slowly loosen the
tip guard retaining nut or hose end coupling and relieve
pressure gradually, then loosen completely.
06877
Fig. 1
Valve shown in
CLOSED position. Valve shown
in OPEN position.
Pressure Hose
Suction Tube
Pressure
Relief Tube
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
ECOPYRIGHT 1996, GRACO INC.
Graco Inc. is registered to I.S. EN ISO 9001

2 308701
Pressure Relief Valve Replacement
Disassembly (Fig. 2)
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
PRESSURE RELIEF PROCEDURE.
1. Relieve the pressure.
2. Note the location of the three wire straps (A) on
the suction hose (B). Cautiously remove the straps
to avoid damaging the suction hose.
3. Remove the spring clips (C) from the suction tube
(D).
4. Remove the drain tube (E) from the elbow connec-
tor (F) on the pressure drain valve (G).
5. Disconnect the elbow connector (F) from the
pressure drain valve (G).
6. Remove the pressure drain valve (G) from the
bottom of the fluid filter (H).
7. Clean the base of the fluid filter (H) to remove any
paint buildup or debris.
Reassembly (Fig. 3)
NOTE: This kit is shipped with two tubing clamps. If
you are using Linestriper Model 231132, 231140,
231149, or 231151 select the clamp marked 1 (7). If
you are using Linestriper Model 231133, 231141,
231150, 231152, or 213337 select the clamp marked 2
(8).
1. Spread the clamp (7 or 8) just enough to allow it to
slip onto the suction tube (D).
2. Position the clamp (7 or 8) so that its top surface is
horizontal, and tighten the nut (2) and bolt (1) at
the base of the clamp just enough to prevent it
from rotating.
3. Place the pressure relief valve bracket (9) on top
of the clamp (7 or 8) with the anti-rotational tab
near the end of the suction hose (B).
4. Apply thread-lock (3) uniformly to the threads of
the machine screw (6) and fasten the pressure
relief bracket (9) to the tubing clamp (7 or 8).
5. Insert the pressure relief valve (12) into the
bracket (9) mounted on the suction tube (D) with
the valve inlet fitting directly above the anti-rota-
tional tab.
6. Slide the clamp (7 or 8) along the suction tube (D)
until the pressure relief tube lies along the side of
the suction tube in a manner that allows both tubes
to easily fit in the slot in the pail cover.
7. Firmly tighten the locknut (2) and screw (1) at the
base of the clamp (7 or 8) to hold the assembly in
place.
8. Apply thread sealant (5) to the 1/4” npt threads of
the npt-nps(m) adapter fitting (10).
9. Tighten the npt threads of the nipple (10) into the
base of the fluid filter (H).
10. Connect one end of the high pressure hose (11) to
the nps(m) threads of the nipple (10).
11. Route the high pressure hose (11) along the
suction hose (B) to prevent it from contacting the
spraying surface. Loosely strap the high pressure
hose to the suction hose with the wire tie straps (4)
in the approximate locations shown.
12. Connect the free end of the high pressure hose
(11) to the nps(m) inlet fitting on the pressure relief
valve (12).
13. Slide the wire tie straps (4) to their final positions
and tighten them.
14. Reconnect the spark plug cable.
15. Pressurize the system and check for leaks.
WARNING
To reduce the risk of serious injury, follow the
PRESSURE RELIEF PROCEDURE before tighten-
ing any fittings.
Parts List
Ref.
No. Part No. Description Qty.
1 100014 SCREW, cap, hex hd 1
2 102040 NUT, lock 1
3 102969 LOCTITE, red 1
4 103473 TIE, wire 2
5 119400 LOCTITE, SST 1
6 113789 SCREW, mach 1
Ref.
No. Part No. Description Qty.
7 113790 CLAMP, 3/4”
Marked as 1 1
8 113791 CLAMP, 1”
Marked as 2 1
9 191874 BRACKET, pressure relief 1
10 162453 NIPPLE 1
11 277300 HOSE, cpld, 3/16” x 4.5” 1
12 238960 VALVE, pressure relief 1

3308701
Pressure Relief Valve Replacement
Fig. 2
A
BC
D
E
FG
E
H
Before Installation After Installation
11
Fig. 3
7 or 8
6
2
9
1
B
H
10
1
1
Anti-Rotational Tab
11
2
2
Pressure Relief Tube
12
D
A
4
0001C
0001B
06907 06908
06909 06910

4 308701
The Graco Warranty and Disclaimers
WARRANTY
Graco warrants all equipment listed in this manual which is manufactured by Graco and bearing its name to be free from defects
in material and workmanship on the date of sale to the original purchaser for use. Graco will, for a period of twelve months from
the date of sale, repair or replace any part of the equipment determined by Graco to be defective. 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 general wear and tear, or 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. Nor shall Graco be liable for malfunction, damage or wear caused by
the incompatibility of Graco equipment with structures, accessories, equipment or materials not supplied by Graco, or the im-
proper design, manufacture, installation, operation or maintenance of structures, accessories, equipment or materials not sup-
plied by Graco.
This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Graco distributor
for verification of the claimed defect. If the claimed defect is verified, Graco will repair or replace free of charge any defective
parts. The equipment will be 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 may include the
costs of parts, labor, and transportation.
THIS WARRANTY IS EXCLUSIVE, AND IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
BUT NOT LIMITED TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PUR-
POSE.
Graco’s sole obligation and buyer’s sole remedy for any breach of warranty shall be as set forth above. The buyer agrees that no
other remedy (including, but not limited to, incidental or consequential damages for lost profits, lost sales, injury to person or prop-
erty, or any other incidental or consequential loss) shall be available. Any action for breach of warranty must be brought within two
(2) years of the date of sale.
GRACO MAKES NO WARRANTY, AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE IN CONNECTION WITH ACCESSORIES, EQUIPMENT, MATERIALS, OR COMPONENTS
SOLD BUT NOT MANUFACTURED BY GRACO. These items sold, but not manufactured by Graco (such as electric motors,
switches, hose, etc.) are subject to the warranty, if any, of their manufacturer. Graco will provide purchaser with reasonable assis-
tance in making any claim for breach of these warranties.
For Sales to Canadian Customers:
Except as expressly stated herein, Graco makers no representations, warranties or conditions, express, implied or collateral, con-
cerning any goods or services sold, and GRACO SHALL NOT BE LIABLE IN ANY MANNER FOR any other representation,
warranty or condition of any kind, whether arising by operation of law or otherwise, including but not limited to, WARRANTIES OF
MERCHANTABLE QUALITY OR FITNESS FOR A PARTICULAR PURPOSE.
LIMITATION OF LIABILITY
In no event will Graco be liable for indirect, incidental, special or consequential damages resulting from Graco supplying equip-
ment hereunder, or for the furnishing, performance, or use of any products or other goods sold hereto, whether due to a breach of
contract, breach of warranty, the negligence of Graco, or otherwise.
Graco Phone Number
TO PLACE AN ORDER, contact your Graco distributor, or call this number to identify the distributor closest to
you: 1–800–690–2894 Toll Free
All written and visual data contained in this document reflects the latest product information available at the time of publication.
Graco reserves the right to make changes at any time without notice.
Graco Headquarters: Minneapolis
International Offices: Belgium, Korea, China, Japan
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
11/1996,Rev 5/2006