Some parts in Rev. C of manual 308–448 have changed but have not yet been changed in the
instruction manual. Please note the changes below and mark them in your manual or keep this
sheet with your manual.
Replaced by Part No. D31–331 Husky
307 Pump, acetal with PTFE dia
phragm and sst balls and seats. See
manual 308–553 for parts.
Replaced by Part No. 239–542 Delta
Air Spray Gun, .055” orifice. See
manual 308–742.
Replaced by Part No. 238–938 Cart,
which includes replaceable items 17a
through 17j, listed below
Part No. 191–902. Qty: 1.
Part No. 108–768. Qty: 2.
Part No. 108–788. Qty: 2.
Part No. 1
Part No. 290–331. Qty: 1.
Part No. 106–062. Qty: 2.
Part No. 104–811. Qty: 2.
Part No. 101–242. Qty: 2.
Part No. 1
Change quantity to 4.
Change quantity to 4.
Change quantity to 4.
Change to Part No. 1
Replaced by Part No. 191–872 Nipple,
1/4 npsm x 1/8 npt.
Add Part No. 157–705 Swivel, 1/4
npt(m) x 3/8 npsm(f), located between
the fluid whip hose and the gun fluid
inlet. Qty: 1.
13–761. Qty: 2.
12–853. Qty: 2.
.
14–558.
-
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.
June 10, 1998
Table of Contents
Symbols
Warnings
Setup.. .......................................
System Component Information ..................
Operation .....................................
Flushing
Parts
Technical Data
Warranty.. ...................................
Grace
......................................
.....................................
........................................
................................
Phone Number
..........................
PRESSURIZED FLUID HAZARD
Spray from the gun, hose leaks, or ruptured components can splash fluid in the eyes or on the skin
and cause serious injury.
l
Do not stop or deflect fluid leaks with your hand, body, glove, or rag.
IO
12
16
16
16
Warning Symbol
2
4
6
8
This symbol alerts you to the possibility of serious
injury or death if you do not follow the instructions.
Caution Symbol
A CAUTION
This symbol alerts you to the possibility of damage to
or destruction of equipment if you do not follow the
instructions.
l
Follow the Pressure relief procedure on page 8 before cleaning, checking, or servicing the
equipment.
l
Tighten ail fluid connections before each use.
l
Check the hoses, tubes, and couplings daily. Replace parts immediately if worn, damaged or
loose. Permanently coupled hoses cannot be repaired.
l
Handle and route hoses and tubes carefully. Keep the hoses and tubes away from moving parts
and hot surfaces. Do not use the hoses to pull equipment. Do not expose
peratures above
FiRE
AND EXPLOSION HAZARD
Improper grounding, poor air ventilation, open flames, or sparks can cause a hazardous condition
and result in a fire or explosion and serious injury.
l
Ground the equipment and the object being sprayed. See Grounding the System on page 5.
l
If there is any static sparking while using the equipment, stop spraying immediately. Identify
and correct the problem.
l
Provide fresh air ventilation to avoid the buildup of flammable vapors from the solvent or the fluid
being sprayed.
l
Do not smoke in the spray area.
18Q°F
(82°C) or below -40°F (-40°C).
m
Grace
hoses to tem-
.
l
l
l
l
l
2308-448
Extinguish all open flames or pilot lights in the spray area.
Do not turn on or off any light switch in the spray area.
Electrically disconnect ail equtpment in the spray area.
Keep the spray area free of debris, including soivent, rags, and gasoline.
Do not operate a gasoline engine in the spray area.
EQUIPMENT MISUSE HAZARD
Equipment misuse can cause the equipment to rupture, malfunction, or start unexpectedly and result
in serious injury.
0
This equipment is for professional use only.
0
Read all instruction manuals, tags, and labels before operating the equipment.
l
Use the equipment only for its intended purpose. If you are in doubt about this, call your
distributor.
0
Do not alter or modify this equipment. Use only genuine
0
Check equipment daily. Repair or replace worn or damaged parts immediately.
0
Do not exceed the 100 psi (6.9 bar) maximum working pressure at 100 psi (6.9 bar) maxi-
Grace
parts and accessories.
mum incoming air pressure of the package or the maximum working pressure of any accesso-
ry used with it.
0
Do not move or lift pressurized equipment.
0
Use fluids or solvents that are compatible with equipment wetted parts. See the Technical Data
section of all equipment manuals. Read the fluid and solvent manufacturer’s warnings.
0
Fluid hoses must have spring guards on both ends to protect them from rupture caused by kinks
or bends at or close to the couplings.
0
Comply with all applicable local, state, and national fire, electrical, and other safety regulations.
Grace
TOXIC FLUID HAZARD
Improper handling of hazardous fluids or inhaling toxic fumes can cause extremely serious injury or
death from splashing in the eyes, ingestion, or bodily contamination.
l
Know the specific hazards of the fluid you are using.
l
Store hazardous fluid in an approved container. Dispose hazardous fluid according to all local,
state, and-national guidelines.
l
Wear appropriate clothing, gloves, eyewear, and respirator.
l
If the pump diaphragm fails, hazardous fluid may be exhausted along with the air. See your separate pump manual for further information.
.
308-448 3
A CAUTION
2.
Clear obstacles and debris that could cause an
unsafe operating environment.
This equipment is compatible with most water
based materials. See the wetted parts in the Tech-nical Data section and your fluid and solvent
manufacturer’s compatibility information.
Do not use catalyzed materials in heated applica-
tions.
I.
Preparing the Operator
All persons who operate the system should be trained
in the safe, efficient operation of all system components as well as the proper handling of the chemical
coating. At a minimum, all operators should thoroughly
read the safety, installation, and operation sections of
this manual and the component manuals.
II.
Preparing the Site
1.
Use at least a 5 HP (3.7 Kw) air compressor for
efficient operation.
3.
Bring an air line from your compressed air supply
to the pump location. Be sure the air is dry and
filtered. Install a bleed-type master air valve
upstream from the pump. When it is closed and
the pump air regulator (6a) is opened, the bleed-
type master air valve relieves all air pressure to the
system components.
4.
Ventilate the spray booth.
To prevent hazardous concentrations of toxic and/
or flammable vapors, spray only in a properly ventilated spray booth. Never operate the spray gun
~ unless ventilation fans are operating.
Check and follow all of the national, state, and local
codes regarding air exhaust velocity requirements.
KEY
Components you must supply:
A
Bleed-type master air valve
Required for pump; order part no.
11 O-223,
BAir filter.
Order part no.
CAir supply line
DGrounded 5 gallon metal pail
E
In addition to the assembled unit, these components
are packed loosely or separately: suction assembly,
hose set, gun, instruction manuals. These are the
manuals you should receive:
Connect the whip hose (10) to the fluid inlet of the
spray gun (2).
4.Verify that all fittings throughout the system are
tightened securely.
5.
Use a tie strap (58) to secure the hose set to the
leg of the cart. This provides strain relief so that
tugs on the heavy hoses don’t damage the hose
connections.
v.
Grounding the System
To reduce the risk of static sparking, ground the
pump and all other equipment used or located in
the spray area. Check your local electrical code for
detailed grounding instructions for your area and
type of equipment. Ground all of this equipment.
Also read FIRE OR EXPLOSION HAZARD on
page 2.
Fig. 2
1.
Connect the air hose (54b) between the gun air
regulator (6b) and the air inlet of the spray gun (2).
This is a WI-18 swivel fitting.
2.
Connect one fluid hose (54b) to the fluid filter (45)
outlet. Connect the other fluid hose (54b) to the
needle valve (5) adapter (25). The hose has a
1/4-l
8 swivel fitting.
1.
Pump: One end of the ground wire (43) is already
connected to the pump grounding strip. Connect
the clamp end of the ground wire to a true earth
ground.
2.
Heater: Plug into a properly grounded electrical
outlet. If you use an extension cord, be sure it is a
3-wire grounded cord that is properly sized for the
heater.
3.
Air compressor. Follow manufacturer’s
recommendations.
4.
Object being sprayed: Follow local code.
5.
Fluid supply container: Follow local code.
6.
All solvent pails: Follow 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.
.
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