The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclamation
point symbol alerts you to a general warning and the hazard symbols refer to procedure-specific risks. When these
symbols appear in the body of this manual or on warning labels, refer back to these Warnings. Product-specific hazard
symbols and warnings not covered in this section may appear throughout the body of this manual where applicable.
EQUIPMENT MISUSE HAZARD
Misuse can cause death or serious injury.
•Do not exceed the maximum working pressure or temperature rating of the lowest rated system
component. See Technical Data in all equipment manuals.
•Use fluids and solvents that are compatible with equipment wetted parts. See Technical Data in all
equipment manuals. Read fluid and solvent manufacturer’s warnings. For complete information
about your material, request MSDS from distributor or retailer.
•Turn off all equipment and follow the Pressure Relief Procedure when equipment is not in use.
•Check equipment daily. Repair or replace worn or damaged parts immediately with genuine manu-
facturer’s replacement parts only.
•Do not alter or modify equipment. Alterations or modifications may void agency approvals and create
safety hazards.
•Use equipment only for its intended purpose. Call your distributor for information.
•Do not use 1,1,1-trichloroethane, methylene chloride, other halogenated hydrocarbon solvents or flu-
ids containing such solvents.
•Comply with all applicable safety regulations.
MOVING PARTS HAZARD
Moving parts can pinch, cut or amputate fingers and other body parts.
•Keep clear of moving parts.
•Do not operate equipment with protective guards or covers removed.
•Pressurized equipment can start without warning. Before checking, moving, or servicing equipment, follow the Pressure Relief Procedure and disconnect all power sources.
SKIN INJECTION HAZARD
High-pressure spray is able to inject toxins into the body and cause serious bodily injury. In the event that
injection occurs, get immediate surgical treatment.
•Do not aim the gun at, or spray any person or animal.
•Keep hands and other body parts away from the discharge. For example, do not try to stop leaks with
any part of the body.
•Always use the nozzle tip guard. Do not spray without nozzle tip guard in place.
•Do not leave the unit energized or under pressure while unattended. When the unit is not in use, turn off the unit and follow the Pressure Relief Procedure for turning off the unit.
•Always engage the trigger lock when not spraying. Verify the trigger lock is functioning properly.
2310643U
Service
Service
Pressure Relief Procedure
Follow the Pressure Relief Procedure whenever
you see this symbol.
This equipment stays pressurized until pressure is
manually relieved. To help prevent serious injury from
pressurized fluid, such as skin injection, splashing
fluid and moving parts, follow the Pressure Relief
Procedure when you stop spraying and before
cleaning, checking, or servicing the equipment.
1. Engage trigger lock.
2. Turn ON/OFF switch to OFF.
3. Unplug power cord.
4. Disengage trigger lock. Hold metal part of gun
against grounded metal pail and trigger gun into pail
to relieve pressure.
5. Engage the trigger lock.
6. Open all fluid drain valves in the system, having a
waste container ready to catch drainage. Leave drain
valve(s) open until you are ready to spray again.
Pump Repair Kits
PumpRepair Kit
248204, 255968248212
253056287825
248205, 249057, 249059,
257146
248213
Tools Needed
•Vise
•12 in. adjustable, open-end wrench (2)
•Hammer (20 oz maximum)
•Small screwdriver
•Throat Seal Liquid
•Pick or long small screwdriver
Cleaning and Inspecting Parts
Clean and inspect parts. Pay particular attention to the
ball seats in the intake valve and piston, which must
have no nicks or wear, and to the inside of the sleeve
and the outside of the piston rod, which must not be
worn or scratched. Replace worn or damaged parts.
7. If you suspect the spray tip or hose is clogged or
that pressure has not been fully relieved after following the steps above, VERY SLOWLY loosen tip
guard retaining nut or hose end coupling to relieve
pressure gradually, then loosen completely. Clear
hose or tip obstruction.
310643U3
COMPONENT RUPTURE HAZARD
To reduce the risk of serious injury from pressurized
fluid, never use sharp or pointed tools to remove
sleeve. If the sleeve cannot be removed easily, return
the sleeve and cylinder to a Graco distributor for
removal.
NOTE:
Remove and clean sleeve when repacking pump.
Service
ti7566a
228
202
ti7569a
ti7570e
233
215
214
212
213
227
ti23115a
NOTE: Sleeve may come out
of cylinder with piston rod.
ti7571a
ti7572a
Repair When Pump is Separated
From Sprayer
Disassembling the Pump
1. Remove packing nut (202) and o-ring (228).
2. Unscrew intake valve from cylinder.
4. Tap piston rod out of cylinder with a hammer or flip
over and tap piston rod out against a bench.
5. Remove piston rod from sleeve, or remove sleeve
from cylinder. Mark IV models: Remove sleeve
spacer (230) from sleeve.
3. Disassemble intake valve. Clean and inspect o-ring
(227). NOTE: A pick may be required to remove
o-ring.
4310643U
COMPONENT RUPTURE HAZARD
ti7576a
ti3940b
Not
used on
248204,
253056,
255968
ti7573b
Not
used on
248204,
253056,
255968
216
218208
204
217
229
ti7574d
Not
used on
248204,
253056,
255968
To reduce the risk of serious injury from pressurized
fluid, do not clean or wipe the piston valve threads.
Cleaning the piston valve threads could destroy the
special sealing patch and cause the piston valve to
come loose during operation.
6. Unscrew piston valve from piston rod. Clean and
inspect parts. The piston has a special thread locking/sealing patch. Do not remove the patch. The
patch allows four disassembly/assembly procedures
before it is necessary to apply thread sealant to the
threads.
Service
8. Remove throat packings and glands from cylinder.
Discard throat packings and glands.
Assembling the Pump
1. Soak all leather packings in SAE 30W oil for 1 hour
minimum prior to assembly. Stack male gland (204)
on piston rod. Alternately stack UHMWPE (208) and
leather (218) packings (note orientation) on piston
rod. Install female gland (217). Install piston wiper
(216) (note orientation) and backup washer (229) on
piston valve (210). Threads are good for four
repackings. Use thread sealant on piston valve
threads after four repackings.
210
7. Remove packings and glands from piston rod.
310643U5
Service
ti7575a
206
ti7576a
ti7573f
224
223
204
Not
used on
248204,
253056,
255968
ti7581a
201
202
228
ti7578c
2. Install ball (206) in piston rod. If thread sealant is
applied to piston valve threads, make sure that none
gets on ball.
3. Tighten piston valve to piston rod as specified:
4. Soak all leather packings in SAE 30W oil for one
hour minimum prior to assembly. Place male gland
(204) in cylinder. Alternately stack UHMWPE (203)
and leather packings (223) (note orientation). Place
female gland (224) in top of cylinder seat packings.
203
5. Install seal (201) into packing nut (202). Install
o-ring (228) onto packing nut. Loosely install packing nut into cylinder.
6. Grease piston packings.
NOTICE
Do not slide piston assembly into top of sleeve as this
may damage piston packing.
6310643U
Service
ti7577a
ti7579a
ti7582a
ti7340a
231
230
ti7340b
215
214
212
213
227
ti23115a
7. Slide piston assembly into bottom of sleeve.
8. Grease top inch or two of piston rod that will go
through the cylinder throat packings.
10. Mark IV models: Install o-ring (231) on sleeve
spacer (230) and install sleeve spacer on sleeve.
11. Reassemble intake valve with new o-ring (227),
seat (212) and ball (214). Seat may be flipped over
and used on other side. Clean seat thoroughly.
9. Grease o-rings (221) and place on sleeve. Slide
sleeve/piston rod assembly into bottom of cylinder.
Replace o-ring (207) if desired.
NOTE: O-ring (207) is not required for safe pump
operation.
207
221
310643U7
Service
ti7569a
ti7568a
202
228
12. Install intake valve on cylinder. If a wrench is used
torque as follows:
14. Remove o-ring (228) when pump packings begin to
leak after extended use. Then tighten packing nut
down until leakage stops or lessens. This allows
approximately 100 gallons of additional operation
before a repacking is required.
5. Disassemble intake valve. Clean and inspect.
O-ring (227) may require a pick for removal.
3. Push up retaining spring (26).
6. Remove piston rod and sleeve.
310643U9
Service
ti7572a
ti7726a
ti4258e
ti4258f
ti4258g
ti4258h
201
224
223
204
ti7573c
Not used on
248204,
253056,
255968
7. Invert piston rod and sleeve and pound on hard surface until piston rod comes out of sleeve.
Mark IV models:
Remove sleeve spacer from sleeve.
8. Remove packing nut (202).
202
9. Invert piston rod and insert into cylinder to force out
throat packings.
11. Remove piston valve from piston rod with a wrench.
ti4258g
12. Remove pin and piston rod from cylinder.
13. Soak all leather packings in SAE 30W oil for 1 hour
minimum prior to assembly. Stack male gland (204).
Alternately stack UHMWPE (203) and leather (223)
packings (note orientation). Install female gland
(224). Install seal (201) and packing nut (202) and
o-ring (228).
203
228
202
10. Insert piston rod into cylinder with pin hole up and
piston valve down. Insert pin into piston rod and
crank shaft.
10310643U
Service
ti3939a
Not used on
248204,
253056,
255968
210
218
206
208
219
217
229
216
ti3941a
Not
used on
248204,
253056,
255968
ti7575b
206
ti7575b
ti7578c
14. Remove packings and glands from piston rod.
15. Soak all leather packings in SAE 30W oil for one hour
minimum prior to assembly. Stack male gland (219)
on piston rod. Alternately stack UHMWPE (208)and
leather (218) packings (note orientation) on piston
rod. Install female gland (217). Install piston wiper
(216) and backup washer (229) (note orientation) on
piston valve (210). The special sealing patch on piston valve threads is good for four repackings. Use
thread sealant on piston valve threads after four
repackings.
16. Install ball (206) in piston rod. NOTE: If thread sealant is applied to piston valve threads, make sure
none gets on ball. Install piston valve on piston rod.
Torque as follows:
ModelsTorque
248204, 253056,
255968, 277069
27 +/- 3 ft-lb (36.6 +/-4.1 N•m)
248205, 249057,
249059, 277070,
55 +/- 3 ft-lb (74.6 +/-4.1 N•m)
257146
17. Grease piston packings.
310643U11
Service
ti7341a
Mark IV
ti7579a
ti4258j
207
221
ti7726b
ti4258k
26
ti4258m
29
26
NOTICE
Do not slide piston assembly into top of sleeve as this
may damage piston packing.
18. Slide piston assembly into bottom of sleeve. Make
sure V-packing and u-cup are not rolled over or
damaged. Mark IV models: Install o-ring (231) on
sleeve spacer (230). Install sleeve spacer on
sleeve.
19. Grease top inch or two of piston rod that will go
through the cylinder throat packings.
21. Torque seal and packing nut (202) down onto throat
adjustment spacer (228) to 100 +/- 10 in-lb (11.3 +/-
1.1 N•m).
Remove o-ring when pump packings begin to leak
after extended use. Then tighten packing nut down
until leakage stops or reduces. This allows approximately 100 gallons of additional operation before a
repacking is required.
202
228
22. Push up retaining spring (26) with screwdriver.
23. Push in pin (29). NOTE: Make sure retaining ring
20. Grease o-ring (221) and place on sleeve. Slide
falls into slot.
sleeve/piston rod assembly into bottom of cylinder.
Replace o-ring (207) if desired. NOTE: O-ring (207)
is not required for safe pump operation.
12310643U
Service
215
214
212
213
227
ti23115a
ti4258n
ti7683d
223
203
218
208
217
213
214
204
221
224
205
219
215
212
227
222
202
221
216
206
210
Leather
Leather
201
220
228
207
229
230
V-Max
™
UHWMPE,
blue
V-Max
™
UHWMPE,
blue
Pump 248204
24. Reassemble intake valve with new o-rings (227)
and (230), seat (212) and ball (214). Seat may be
flipped over and used on other side. Clean seat
thoroughly.
25. Install intake valve on cylinder. Torque as follows:
* These parts are also included in Repair Kit 248213, which may be
purchased separately.
† These parts are also included in Carbide Seat Kit 244199, which
may be purchased separately.
These parts are also included in Pump Repair Kit 249189, which
may be purchased separately.
* These parts are also included in Repair Kit with stainless steel
ball,287825, which may be purchased separately.
These parts are also included in Repair Kit with ceramic ball,
24V063, which may be purchased separately.
† These parts are also included in Carbide Seat Kit with stainless
steel ball, 244199, which may be purchased separately.
^ These parts are also included in Carbide Seat Kit with ceramic ball,
24V071, which may be purchased separately.
16310643U
Technical Data
U.S.Metric
Maximum Working Pressure3300 psi227 bar, 22.7 MPa
Fluid Inlet Size1-5/16-12 un(m)1-5/16-12 un(m)
Fluid Outlet Size
Graco warrants all equipment referenced in this document 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. With the exception of any special, extended, or limited warranty
published by Graco, 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 improper design, manufacture, installation, operation or
maintenance of structures, accessories, equipment or materials not supplied 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 PURPOSE.
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 property, 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 assistance in making any claim for breach of these
warranties.
In no event will Graco be liable for indirect, incidental, special or consequential damages resulting from Graco supplying equipment hereunder, or
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.
FOR GRACO CANADA CUSTOMERS
The Parties acknowledge that they have required that the present document, as well as all documents, notices and legal proceedings entered into,
given or instituted pursuant hereto or relating directly or indirectly hereto, be drawn up in English. Les parties reconnaissent avoir convenu que la
rédaction du présente document sera en Anglais, ainsi que tous documents, avis et procédures judiciaires exécutés, donnés ou intentés, à la suite
de ou en rapport, directement ou indirectement, avec les procédures concernées.
Graco Information
For the latest information about Graco products, visit www.graco.com.
For patent information, see www.graco.com/patents.
TO PLACE AN ORDER, contact your Graco distributor or call 1-800-690-2894 to identify the nearest distributor.
All written and visual data contained in this document reflects the latest product information available at the time of publication.
GRACO INC. AND SUBSIDIARIES • P.O. BOX 1441 • MINNEAPOLIS MN 55440-1441 • USA
Copyright 2014, Graco Inc. All Graco manufacturing locations are registered to ISO 9001.
Graco reserves the right to make changes at any time without notice.
Original instructions. This manual contains English. MM 310643
Graco Headquarters: Minneapolis
International Offices: Belgium, China, Japan, Korea
www.graco.com
Revised U, April 2015
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