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Graco Series A Operating instructions

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Copyright 2025 Manuals.Online. All Rights Reserved.

310643W
EN
Repair
Displacement Pump
Use only genuine Graco replacement parts. Use of non-Graco replacement parts may void
warranty.
3300 psi (22.7 MPa, 227 bar) Maximum Working Pressure
Model 248204, Series A
UltraMax II and Ultimate MX II 695/795
ASM Zip-Spray 2700 Plus, 3100 Plus
ASM AllPro Mach 8600 Plus and 11000 Plus
ASM H2700 Plus
Model 255968, Series A
ASM 3600G Plus
Model 248205, Series A
UltraMax II and Ultimate MX II 1095/1595
Model 249059, Series A
TexSpray Mark V
Model 249057, Series A
TexSpray Mark V
Model 277069, Series A
LineLazer 3900, ES2000
Model 277070, Series A
LineLazer 5900
Model 253056, Series A
Mark IV
Model 257146, Series A
Ironman 300E and Ironman 500G
Important Safety Instructions
Read all warnings and instructions in this manual.
Be familiar with the controls and the proper usage
of the equipment. Save these instructions.
ti2311
Warnings
2310643W
Table of Contents
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Parts - Pump 248204, 277069, 255968 . . . . . . . . . 14
Parts - Pump 248205, 249057, 249059,
277070, 257146 . . . . . . . . . . . . . . . . . . . . . . . . 15
Parts - Pump 253056 . . . . . . . . . . . . . . . . . . . . . . . 16
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Graco Standard Warranty . . . . . . . . . . . . . . . . . . . . 1
Warnings
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.
WARNING
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.
Service
310643W 3
Service
Pressure Relief Procedure
Follow the Pressure Relief Procedure whenever
you see this symbol.
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.
7. If you suspect the spray tip or hose is clogged or
that pressure has not been fully relieved after follow-
ing 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.
Pump Repair Kits
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.
NOTE:
Remove and clean sleeve when repacking pump.
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.
Pump Repair Kit
248204, 255968 248212
253056 287825
248205, 249057, 249059,
257146
248213
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.
Service
4310643W
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.
3. Disassemble intake valve. Clean and inspect o-ring
(227). NOTE: A pick may be required to remove
o-ring.
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.
ti7566a
228
202
ti7569a
ti7570e
211
215
214
212
213
227
ti23115a
NOTE: Sleeve may come out
of cylinder with piston rod.
ti7571a
ti7572a
Service
310643W 5
6. Unscrew piston valve from piston rod. Clean and
inspect parts. The piston has a special thread lock-
ing/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.
7. Remove packings and glands from piston rod.
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.
COMPONENT RUPTURE HAZARD
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.
ti7576a
ti3940b
Not
used on
248204,
253056,
255968
ti7573b
Not
used on
248204,
253056,
255968
216
218 208
204
217
210
229
ti7574d
Not
used on
248204,
253056,
255968
Service
6310643W
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.
5. Install seal (201) into packing nut (202). Install
o-ring (228) onto packing nut. Loosely install pack-
ing nut into cylinder.
6. Grease piston packings.
Models Torque
248204, 253056,
255968, 244069
27 +/-3 ft-lb.(36.1 +/-4.1 N•m)
248205, 249057,
249059, 277070,
257146
55 +/-3 ft-lb.(74.6 +/-4.1 N•m)
ti7575a
206
ti7576a
NOTICE
Do not slide piston assembly into top of sleeve as this
may damage piston packing.
ti7573f
203
224
223
204
Not
used on
248204,
253056,
255968
ti7581a
201
202
228
ti7578c
Service
310643W 7
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.
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.
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.
ti7577a
ti7579a
221
207
ti7582a
ti7340a
231
230
ti7340b
215
214
212
213
227
ti23115a
Service
8310643W
12. Install intake valve on cylinder. If a wrench is used
torque as follows:
13. Torque packing nut (202) down onto adjustment
spacer (228) 100 +/- 10 in-lb. (11.3 +/- 1.1 N•m)
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.
Models Torque
248204, 253056,
255968, 277069
67 +/- 5 ft-lb (90.8 +/-6.8 N•m)
248205, 249057,
249059, 277070,
257146
80 +/- 5 ft-lb (108.5 +/-6.8 N•m)
ti7569a
ti7568a
202
228
Service
310643W 9
Repair When Pump is On
Sprayer
1. Perform
Pressure Relief Procedure, page 3.
2. Remove intake valve.
3. Push up retaining spring (26).
4. Push out pin (29).
5. Disassemble intake valve. Clean and inspect.
O-ring (227) may require a pick for removal.
6. Remove piston rod and sleeve.
ti4258c
ti4258a
26
29
26
ti4258b
ti4258b
215
214
212
213
227
ti23115a
ti7746a
Service
10 310643W
7. Invert piston rod and sleeve and pound on hard sur-
face until piston rod comes out of sleeve.
Mark IV models:
Remove sleeve spacer from sleeve.
8. Remove packing nut (202).
9. Invert piston rod and insert into cylinder to force out
throat packings.
10. Insert piston rod into cylinder with pin hole up and
piston valve down. Insert pin into piston rod and
crank shaft.
11. Remove piston valve from piston rod with a wrench.
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).
ti7572a
202
ti7726a
ti4258e
ti4258f
ti4258g
ti4258g
ti4258h
201
228
203
224
223
204
202
ti7573c
Not used on
248204,
253056,
255968