Graco GM 1030 User manual

309662. . . . . . .
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
Copyright 1993, Graco Inc. is registered to I.S. EN ISO 9001
Instructions – Parts Lists
GM 1030tTexSpray Gun
308274M
Read warnings and instructions.
309663. . . . . . .
CONTENTS
Specifications 2. . . . . . . . . . . . . . . . . . . . . . . . . .
Warnings 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Grounding and Electric Requirements 5. . . . . .
Thermal Overload 6. . . . . . . . . . . . . . . . . . . . . . .
Pressure Relief Procedure 7. . . . . . . . . . . . . . .
Installation 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Nozzle & Disc Selection 9. . . . . . . . . . . . . . . . . .
Helpful Hints 10. . . . . . . . . . . . . . . . . . . . . . . . . .
Flushing Guidelines 10. . . . . . . . . . . . . . . . . . . .
Service 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Data 13. . . . . . . . . . . . . . . . . . . . . . . .
Dimensions 13. . . . . . . . . . . . . . . . . . . . . . . . . . .
Graco Warranty 14. . . . . . . . . . . . . . . . . . . . . . .
1000 psi (7.0 MPa, 70 bar) Maximum Working Pressure (Absolute)
150 psi (1.0 MPa, 10 bar) Maximum Fluid Working Pressure (Recommended)
125 psi (0.9 MPa, 9 bar) Maximum Air Working Pressure
01808
– For portable spray application of architectural paints and coatings –
Model 235490, Series A
Requires up to 30 SCFM (0.83 m#/min) air
Parts

2 308274
Specifications
This equipment is not intended for use with flammable or combustible materials used in places such as
cabinet shops or other “factory” or fixed locations. If you intend to use this equipment in this type of
application, you must comply with NFPA 33 and OSHA requirements for the use of flammable and
combustible materials.
Warnings
Warning Symbol
WARNING
This symbol alerts you to the possibility of serious
injury or death if you do not follow the instructions.
Caution Symbol
CAUTION
This symbol alerts you to the possibility of damage to
or destruction of equipment if you do not follow the
instructions.

3308274
The following are general Warnings related to the safe setup, use, maintenance and repair of this equipment.
Additional, more specific warnings may be found throughout the text of this manual where applicable.
WARNING
FIRE AND EXPLOSION HAZARD
Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. To help
prevent fire and explosion:
DUse equipment only in well ventilated area.
DEliminate all ignition sources; such as pilot lights, cigarettes, portable electric lamps, and plastic
drop clothes (potential static arc).
DSprayer generates sparks. When flammable liquid is used in or near sprayer or for flushing or
cleaning, keep sprayer at least 20 ft (6 m) away from explosive vapors.
DDo not clean with materials having flash points lower than 70_F (21_C). Use water–based materi-
als or mineral spirits type material only. For complete information about your fluid, request the
MSDS from the fluid distributor or retailer.
DKeep work area free of debris, including solvent, rags and gasoline.
DDo not plug or unplug power cords or turn lights on or off when flammable fumes are present.
DGround equipment and conductive objects in work area. Read Grounding instructions.
DIf there is static sparking or you feel a shock, stop operating immediately. Do not use equipment
until you identify and correct the problem.
SKIN INJECTION HAZARD
High pressure fluid from gun, hose leaks, or ruptured components will pierce skin. This may look like
just a cut, but it is a serious injury that can result in amputation. Get immediate surgical treatment.
DDo not point gun at anyone or any part of the body.
DDo not put your hand over the spray tip.
DDo not stop or deflect leaks with your hand, body, glove, or rag.
DEngage trigger lock when not spraying.
DFollow Pressure Relief Procedure in this manual, when you stop spraying and before cleaning,
checking or servicing equipment.
PRESSURIZED ALUMINUM PARTS HAZARD
Do not use 1,1,1-trichloroethane, methylene chloride, other halogenated hydrocarbon solvents or
fluids containing such solvents in this equipment. Such use could result in a serious chemical reaction,
with the possibility of explosion, which could cause death, serious injury and/or substantial property
damage.

4 308274
WARNING
INSTRUCTIONS
EQUIPMENT MISUSE HAZARD
Misuse can cause death or serious injury.
DRead all instruction manuals, tags, and labels before operating the equipment.
DUse equipment only for its intended purpose. Call your Graco distributor for information.
DDo not exceed the maximum working pressure or temperature rating of the lowest rated system
component. This gun has a 150 psi (10 bar) maximum fluid working pressure at a 125 psi (9
bar) maximum incoming air pressure. Read Technical Data in all equipment manuals.
DDo not alter or modify equipment.
DCheck equipment daily. Repair or replace worn or damaged parts immediately.
DDo not lift pressurized equipment.
DRoute the hoses away from the traffic areas, sharp edges, moving parts, and hot surfaces. Do not
expose Graco hoses to temperatures above 180_F (82_C) or below –40_F (–40_C).
DDo not use hoses to pull equipment.
DKeep children and animals away from work area.
DComply with all applicable safety regulations.
DDo not use 1,1,1-trichloroethane, methylene chloride, other halogenated hydrocarbon solvents or
fluids containing such solvents in this equipment, which contains aluminum and/or zinc parts. Such
use could result in a serious chemical reaction, with the possibility of explosion, which could cause
death, serious injury and/or substantial property damage.
DWear eye and ear protection when operating this equipment. Keep body parts away from front of
gun. See Sound Data in TECHNICAL DATA.
TOXIC FLUID HAZARD
Toxic fluid or fumes can cause serious injury or death if splashed in the eyes or on skin, inhaled, or
swallowed.
DRead MSDS’s to know the specific hazards of the fluids you are using.
DStore hazardous fluid in approved containers and dispose of it according to all applicable guide-
lines.
PERSONAL PROTECTIVE EQUIPMENT
You must wear appropriate protective equipment when operating, servicing, or when in the operating
area of the equipment to help protect you from serious injury, including eye injury, inhalation of toxic
fumes, burns, and hearing loss. This equipment includes, but is not limited to:
DProtective eye wear.
DClothing and respirator as recommended by the fluid and solvent manufacturer.
DGloves.
DHearing protection.

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Grounding Requirements
Your system must be grounded. Read Fire and
Explosion Hazard warnings, page 3.
WARNING
Ground sprayer with grounding clamp to earth
ground when flushing sprayer.
Pressure Relief Procedure
Refer to you sprayer manual for Pressure Relief
Procedure. Follow the Pressure Relief Procedure
when you stop spraying and before cleaning,
checking, servicing or transporting equipment.
WARNING

6 308274
Installation
RECOIL HAZARD
Due to the high pressure fluid emitted, a strong recoil action may occur when you trigger this gun. If
you are unprepared, your hand could be forced back toward your body or you could lose your bal-
ance and fall, resulting in serious injury.
WARNING
WARNING
Setup
1. Connect the air and material hoses to the gun and
tighten securely.
2. See page 8 for disc and nozzle recommenda-
tions. Install the disc (2) and nozzle (5) on the gun
as shown in Fig. 1. Tighten the retaining rings (1
and 3) snugly, but do not use a wrench.
3. Refer to the TexSpray1030FC manual 309663 for
how to start and prime the sprayer.
Fig. 1
01811
2
1
3
4
5
11
20

7308274
Operation
EQUIPMENT MISUSE HAZARD
In the GM 1030 TexSpray, the fluid pres-
sure is relieved automatically when the
gun trigger is released. However, to
further reduce the risk of injury, including injury from
moving parts, always follow the Pressure Relief
Procedure when you are not spraying and before
checking or adjusting the system.
WARNING
INSTRUCTIONS
Pressure Relief Procedure
1. Turn the Flow Control to OFF.
2. Turn the engine stop lever to OFF.
How to Adjust the Spray Pattern
1. Be sure the Air Control Valve (11) is turned in fully
to prevent air from mixing with the fluid. Note that
the air will exit the rear of the gun.
2. While triggering the gun, adjust the engine RPM to
determine fluid flow and pressure. A good starting
point is to adjust the fluid flow until you have an 8
in. (20 cm) stream.
3. Holding the gun 18 to 30 in (0.5 to 1.0 m) from a
test surface, test the spray pattern while turning
out the gun’s Air Control Valve (11) which allows
the air to atomize the fluid. Adjust the Air Control
Valve to obtain the desired spray pattern.
TIP: More fluid flow = more air,
and less fluid = less air.
4. If you cannot get a good spray pattern, try
adjusting the air regulator pressure or try another
spray disc and nozzle combination.
To Prevent Material Surge at the
Beginning of a Spray Pattern
1. Always trigger the gun fully.
If the gun is triggered partially, which only triggers
the air portion of the system, the pump will start
and pressurize the hoses. Then, when you
complete the triggering action, you will get a blast
of unatomized material.
2. When you release the gun trigger, allow the
material to completely depressurize before
triggering the gun again.
Failure to do this will result in spraying some
unatomized material, and may cause material to
back up into the gun air passages and block air
flow. Longer hoses and heavier material may take
several seconds longer to depressurize.
As you test the spray pattern, also determine how
long it takes to depressurize the system and keep
that in mind as you are working.
Fluid Nozzle and Spray Disc Selection
Three spray discs and nozzles are supplied with the sprayer. The nozzles are numbered 1, 2 or 3 – the larger the
number the more scfm is required. These parts can be interchanged to produce a pattern suitable for each job. Use
the chart below to help determine the right combination for your application.
Material Fluid
Nozzle
Spray Discs (by aggregate size)
Nozzle Fine Medium Coarse Extra Coarse
Elastomerics #3 1/8” 1/4” 1/4” or 3/8” 3/8”
Simulated Accoustical #2 1/8” 1/4” 1/4” or 3/8” 3/8”
Splatter Coat* and
Knockdown
#1 1/4” or 3/8” n/a n/a n/a
Orange Peel #2 1/8” or 1/4” n/a n/a n/a

8 308274
Helpful Hints
DA spraying distance of 18 to 30 in (0.5 to 1.0 m)
is recommended for most applications.
DKeep the gun triggered and moving as much as
possible.
DSet the gun’s trigger bail (20) to hold the trigger
open and reduce operator fatigue on large surface
areas.
DWhen releasing the trigger wait until the system
pressure is fully relieved before triggering the gun
again to eliminate a blast of unatomized material.
DSimulated acoustic material with polystyrene
texture compresses easily so the system pressure
builds up more slowly.
DWhen spraying elastomerics, maintain a wet
edge, spray vertical passes followed by horizontal
passes. Then hold the gun further away and “dust”
the area to blend in the pattern.
DTo spray ceilings as high as 9 to 12 ft (3 to 4 m)
without using stilts or scaffolding, use a higher
engine RPM and open the gun’s Air Adjustment
Valve more to project the material onto the ceiling,
and increase the regulator air pressure.
DTo spray a small, confined area, you may be able
to restrict the spray pattern sufficiently by restricting
the gun’s air. For further adjustment, reduce the
engine RPM.
DCheck the material consistency periodically.
The material may thicken as it sits and slow down
production. Check and thin the material as needed
to maintain proper consistency.
DIf fluid from the gun is pulsing and you are
spraying thin material, install an accessory Flow
Restrictor, P/N 190109 to restrict the flow of fluid to
the gun. Install as shown in Fig. 2.
Fig. 2
E
04628
Flushing
1. Setup – prepare a pail of warm, soapy water or
solvent. Turn the gun’s Air Control Valve all the
way in. Start the engine with the sprayer’s Flow
Control in the OFF mode.
2. Turn the Flow Control to HIGH.
3. Trigger the gun. Direct the spray material into a
waste container until the flushing fluid appears.
Now direct the flushing fluid into the flushing pail,
secure the trigger bail to keep the gun triggered
and circulate the fluid until the gun and hose are
thoroughly flushed.
4. Release the trigger – pressure will be relieved
automatically.
5. Turn the Flow control to PRIME.
6. Circulate the flushing fluid through the pump,
siphon hose and drain hose until well flushed.
7. If you are going to store the sprayer, set the spray-
er’s Flow Control to OFF, turn the engine switch
off, and remove the spark plug cable.

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Service
To reduce the risk of a serious injury due to the
sprayer starting unexpectedly, always shut off the
engine and disconnect the spark plug before
performing any checks or service.
WARNING
01809
1
3
4
2
1
2
3
4
Air valve
Fluid valve
Fluid inlet
Air inlet
Fig. 3
NOTE: Refer to the Parts Drawing on page 7 during
the repair.
If air is leaking around the air valve
1. Follow the Pressure Relief Procedure.
2. Remove the trigger (24).
3. Unscrew the packing nut (31). Grasp the seat (29)
and pull it out. Remove the remaining parts.
4. Check for worn or damaged parts and replace as
necessary. Lubricate all packings, o-rings and
moving parts and reassemble the gun. Tighten the
packing nut (31) just enough to prevent leaking,
but don’t over compress the packings.
If air is not flowing to nozzle
1. Follow the Pressure Relief Procedure.
2. Remove the disk and nozzle assembly.
3. Remove the trigger (24).
4. Unscrew the air control valve (11) and clean.
5. Use a 3/8 in. hex key wrench to unscrew the head
bolt (10).
6. Unscrew the spring and valve guide (15). Remove
the gasket (17) and o-ring (16).
7. Unscrew the packing nut (31).
8. Grasp the valve stem (27) and pull it out the front
of the gun.
9. Clean and inspect all parts. Replace worn or
damaged parts.
10. Lubricate all packings, o-rings and moving parts.
Reassemble the gun. Tighten the packing nut (31)
just enough to prevent leaking, but don’t over
compress the packings.

10 308274
Parts
01829
1
2
3
4
5
6
7
8
910
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
16
30
31
Model 235490, Series A
Includes items 1 to 31
Ref
No. Part No. Description Qty
Ref
No. Part No. Description Qty
1 188354 RETAINING NUT 1
2 SPRAY TIP DISKS
235579 1/8 in. orifice 1
235580 1/4 in. orifice 1
235581 3/8 in. orifice 1
248311 5/16 in. orifice 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 160225 LOCKRING, nozzle 1
4 188353 HOUSING ADAPTER 1
5 GUN NOZZLE (all sizes included)
188428 Size 1 1
188429 Size 2 1
188430 Size 3 1
6 188447 VALVE STEM 1
7 111967 QUAD RING PACKING 1
8 188445 HEAD 1
9 160217 PIVOT PIN 1
10 160233 BOLT 1
11 235741 AIR CONTROL VALVE KIT 1
12 160231 SCREW, fluid valve regulating 1
13 111966 SPRING, fluid valve 1
14 160227 PUSH ROD, fluid valve 1
15 160232 GUIDE, spring and valve 1
16 156082 O-RING 2
17 150925 GASKET, copper 1
18 203953 LOCKSCREW, trigger 1
19 188446 GUN BODY 1
20 160215 TRIGGER LATCH 1
21 160222 AIR INLET ADAPTER, 3/8 npsm 1
22n154741 O-RING 1
23 161274 PLUG 1
24 160239 TRIGGER 1
25 161319 SPRING, air valve 1
26 177139 POPPET, valve 1
27 169643 AIR VALVE STEM 1
28 160910 WASHER 1
29 160229 AIR VALVE SEAT 1
30 160240 PACKING, air valve stem 1
31 160228 PACKING NUT, air valve stem 1
nKeep these spare parts on hand to reduce down time.
241854 Kit includes 1, 2 (all sizes), and 4.