Graco Series E Operation manual

307260
Rev. L
First choice when
quality counts.t
INSTRUCTIONS-PARTS LIST
INSTRUCTIONS
This manual contains important
warnings and information.
READ AND KEEP FOR REFERENCE.
Airless Spray Gun
4500 psi (31 MPa, 310 bar) Maximum Working Pressure
Model 210890, Series E
07413A
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
ECOPYRIGHT 1976, GRACO INC.
Graco Inc. is registered to I.S. EN ISO 9001
Parts

2307260
Table of Contents
Warnings 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Data 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warranty 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Graco Phone Number 16. . . . . . . . . . . . . . . . . . . . . . . . . .
Symbols
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.
WARNING
EQUIPMENT MISUSE HAZARD
Equipment misuse can cause the equipment to rupture, malfunction, or start unexpectedly and result
in serious injury.
DThis equipment is for professional use only.
DRead all instruction manuals, tags, and labels before operating the equipment.
DUse the equipment only for its intended purpose. If you are uncertain about usage, call your Graco
distributor.
DDo not alter or modify this equipment. Use only genuine Graco parts and accessories.
DCheck the equipment daily. Repair or replace worn or damaged parts immediately.
DDo not exceed the maximum working pressure of the lowest rated system component. This equip-
ment has a 4500 psi (31.0 MPa, 310 bar) maximum working pressure.
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 the hoses to pull the equipment.
DUse only Graco approved hoses. Do not remove hose spring guards, which help protect the hose
from rupture caused by kinks or bends near the couplings.
DUse fluids or solvents that are compatible with the equipment wetted parts. See the Technical
Data section of all the equipment manuals. Read the fluid and solvent manufacturer’s warnings.
DWear hearing protection when operating this equipment.
DComply with all applicable local, state and national fire, electrical and other safety regulations.
DDo not touch the heater during operation; it is very hot.

3307260
WARNING
FIRE AND EXPLOSION HAZARD
Improper grounding, poor air ventilation, open flames, or sparks can cause a hazardous condition and
result in fire or explosion and serious injury.
DGround the equipment and the object being sprayed. See Ground the System on page 4.
DProvide fresh air ventilation to avoid the buildup of flammable fumes from solvent or the fluid being
sprayed.
DExtinguish all the open flames or pilot lights in the spray area.
DElectrically disconnect all the equipment in the spray area.
DKeep the spray area free of debris, including solvent, rags, and gasoline.
DDo not turn on or off any light switch in the spray area while operating or if fumes are present.
DDo not smoke in the spray area.
DDo not operate a gasoline engine in the spray area.
DIf there is any static sparking while using the equipment, stop spraying immediately. Identify and
correct the problem.
TOXIC FLUID HAZARD
Hazardous fluid or toxic fumes can cause serious injury or death if splashed in the eyes or on the skin,
inhaled, or swallowed.
DKnow the specific hazards of the fluid you are using.
DStore hazardous fluid in an approved container. Dispose of hazardous fluid according to all local,
state and national guidelines.
DAlways wear protective eyewear, gloves, clothing and respirator as recommended by the fluid and
solvent manufacturer.

4307260
Installation
Ground the System
WARNING
FIRE EXPLOSION HAZARD
Before operating, ground the system as
explained below. Also read the section
FIRE AND EXPLOSION HAZARD on
page 3.
To reduce the risk of static sparking, ground all the
spray equipment used or located in the spray area.
Check you local electrical code and your equipment’s
individual instruction manuals for detailed grounding
instructions for your area and type of equipment and
be sure to ground all of this spray equipment:
DPump or sprayer: As instructed in your separate
pump or sprayer manual.
DAir compressor or hydraulic power supply: Follow
your local code.
DFluid hoses: Use only grounded hoses with a
maximum of 500 feet (150 m) combined hose
length to ensure grounding continuity.
DSpray gun: Obtain grounding through connection to
a properly grounded fluid hose and sprayer or
pump.
DFluid supply container: Follow your local code.
DObject being sprayed: according to local code.
DAll solvent pails used when flushing: Follow your
local code. Use only metal pails, which are
conductive. Do not place the pail on a
non-conductive surface, such as paper or
cardboard, which interrupts the grounding
continuity.
DTo maintain grounding continuity when flushing or
relieving pressure, always hold a metal part of the
gun firmly to the side of a metal pail, then trigger
the gun.

5307260
Installation
NOTE: Numbers and letters in parenthesis in the text
correspond to the reference numbers and letters in the
text and drawings.
WARNING
Be sure your system has a bleed-type master air
valve (pneumatic pumps only) and a fluid drain
valve. These two accessories help reduce the risk
of serious injury, including fluid injection, splashing
in the eyes or on the skin, or injury from moving
parts, if you are adjusting or repairing the pump or
gun.
DThe bleed-type master air valve relieves air
trapped between this valve and the pump after
the air regulator is shut off. Trapped air can
cause the pump to cycle unexpectedly.
DThe fluid drain valve assists in relieving fluid
pressure in the displacement pump, hose, and
gun; triggering the gun to relieve pressure may
not be sufficient.
1. Connect a grounded fluid hose to the gun inlet.
2. With no tip installed, start the pump/sprayer. Flush
it according to the instructions supplied with it.
Prime the system with the fluid you are using.
3. Relieve the pressure.
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 6.
4. With the gun safety latch engaged, unscrew the
retaining nut (B) of the tip/guard assembly
(18, 28), and install the gasket (28a) in the
retaining nut. Screw the tip/guard assembly firmly
onto the gun. Tighten with a wrench. See Fig. 1.
NOTE: Failure to install the tip gasket (28a) will
result in leaking.
5. Strain the fluid you are spraying if it contains
particles that could clog the spray tip.
Fig. 1
03958A
28a
1/4 npt(f)
18
28
B

6307260
Operation
Pressure Relief Procedure
WARNING
INJECTION HAZARD
Fluid under high pressure can be in-
jected through the skin and cause
serious injury. To reduce the risk of an
injury from injection, splashing fluid, or moving
parts, follow the Pressure Relief Procedure
whenever you
DAre instructed to relieve the pressure
DStop spraying
DCheck or service any of the system equipment
DInstall or clean the spray tips
1. Engage the gun safety latch.
2. Shut off the power supply to the pump and close
any bleed-type master air valves in the air supply.
3. Disengage the gun safety latch.
4. Hold a metal part of the gun firmly to the side of a
grounded metal pail, and trigger the gun into the
pail to relieve pressure.
5. Engage the gun safety latch.
6. Open the pump fluid drain valve (required in your
system), having a container ready to catch the
drainage.
7. Leave the drain valve open until you area ready to
spray again.
If you suspect that the spray 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. Then
clear the tip or hose.
Start Up
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 6.
Whenever you stop spraying for a moment, engage
the gun safety latch. See Fig. 2.
WARNING
The wallet-sized warning card provided with this
gun should be kept with the operator at all times.
The card contains important treatment information
should an injection injury occur. Additional cards
are available at no charge from Graco Inc.
1. Start the pump. Adjust the fluid pressure so the
spray is completely atomized. ALways use the
lowest pressure necessary to get the desired
results. Higher pressure may not improve the
spray pattern and will cause premature tip and
pump wear.
2. If adjusting the pressure does not give a good
spray pattern, try another tip size. Be sure to
relieve pressure completely before changing tips.
3. Use a full-open, full-close trigger action. Hold the
gun about 14 in. (350 mm) from and at right angles
to the work surface. Do not swing the gun in an
arc. Practice to find the best length and speed of
stroke.
Fig. 2 03957A
safety latch in
OFF SAFE position
safety latch in
ON SAFE position

7307260
Operation
Adjusting the Spray Pattern
WARNING
To reduce the risk of a fluid injection injury, never
use the gun with the tip guard or trigger guard
removed.
To adjust the orientation of the spray pattern, relieve
the pressure. Engage the safety latch, and loosen
the tip guard retaining nut (B). Rotate the tip/guard
assembly (18, 28) to the spray pattern orientation you
desire. See Fig. 3.
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 6.
The spray tip orifice size and spray angle determines
the coverage and size of pattern. When more
coverage is needed, use a larger spray tip rather than
increasing fluid pressure.
Fig. 3 03958A
18
28
B
Tip/guard assembly
(18, 28) is oriented for
a vertical spray pattern
as shown.
CAUTION
Openings in the tip guard are designed to reduce
paint buildup on the guard while spraying. Any
damage to the sharp edges of the openings causes
paint to collect at that area. To reduce the risk of
damage, never hang the gun by the tip guard.
Cleaning or Clearing the Spray Tip
Clean off the front of the tip frequently during the day’s
operation and at the end of the work day. Always
relieve the pressure. Then, use a solvent soaked
brush to clean the spray tip and to keep fluid buildup
from drying and clogging the spray tip.
If the spray tip clogs while spraying, clear it as follows:
1. Engage the gun safety latch.
2. Turn the arrow-shaped handle on the tip (28) 180_
to the cleaning position.
3. Disengage the gun safety latch, and trigger the
gun into a grounded metal pail.
Fluid pressure should force out the clog.
4. Engage the gun safety latch, and turn the
arrow-shaped handle180_to the spray position.
5. Disengage the gun safety latch, and resume
spraying.
If the tip is still clogged, disassemble and manually
clean it. See page 10.
CAUTION
Never soak the entire gun in solvent. Prolonged
exposure to solvent can ruin the packings.

8307260
Operation
Flushing
NOTE: Flush the gun before the fluid being spraying
can dry in it.
WARNING
To reduce the risk of serious injury from fluid injec-
tion, splashing, or static sparking:
DBe sure the entire system and the flushing pails
are properly grounded.
DAlways hold a metal part of the gun firmly to the
side of a grounded metal pail when flushing.
DFollow the flushing procedure carefully.
1. Relieve the pressure.
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 6.
2. Remove the spray tip. See Fig. 3.
3. Flush the gun, and spray system with a compatible
solvent as instructed in your separate pump
instruction manual.
If Valve Will Not Stop Spraying
Check the clearance between the tip of the trigger and
the safety latch. See Adjusting the Trigger on page
11. Also, disassemble and clean the gun.
If Fluid Leaks Around Packing Nut
The packings and/or needle may need replacing. See
Parts on page 12.

9307260
Notes

10 307260
Service
Fig. 4
8
9
22
2
16
15
7
13
21
11
20
28a
23
03959A
18
28
Fig. 5
14
6
10
5
11
03962
A
See Fig. 4 and Fig. 5.
1. Relieve the pressure, and disconnect the hose.
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 6.
2. Remove the tip/guard assembly (18, 28) and the
tip gasket (28a).
3. Unscrew the nut (21). Remove the trigger
guard (23).
4. Unscrew the nipple (20).
5. Remove the locknut (9) and screw (8).
6. Swing the trigger (11) out of the way. Unscrew the
packing nut (6). Remove the valve stem (14). Use a
wire hook to pull the packings (10) and gland (5) out
of the body (22). See Fig. 5.
7. Unscrew the lower body (13) from the upper body.
Remove the spring (15), retainer (16), and ball (2).
See Fig. 4.
8. Clean and inspect parts. Replace worn or
damaged parts. Disassemble and manually clean
the tip/guard assembly (18, 28) if they are dirty.
NOTE: Always replace all four packings (10) and the
gland (5) at the same time.
9. Install the support (7), spring (15), retainer (16) and
ball (2) in the lower body (13). Screw the lower body
firmly into the upper body (22). See Fig. 4
10. Lubricate the packings (10) and gland (5). Install
these parts one at a time into the gun body (22).
Install the valve stem (14) and packing nut (6).
See Fig. 5.
11. Flip the trigger down and install the screw (8) and
locknut (9).
12. Screw the nipple (20) into the gun body (22).
13. Install the trigger guard (23) and secure with the
locknut (21).
14. Reinstall the tip gasket (28a) and the tip/guard
assembly (18, 28).
15. Adjust the trigger before using the gun. See
Adjusting the Trigger, on page 11.