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.
310645 English
2310645P
Warnings
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, 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
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:
• Use equipment only in well ventilated area.
• Keep work area free of debris, including solvent, rags, and gasoline.
• Ground equipment in the work area. See Grounding instructions.
• If there is static sparking or you feel a shock, stop operation immediately. Do not use equipment
until you identify and correct the problem.
Equipment Misuse Hazard
Equipment misuse can cause death or serious injury.
•Do not exceed maximum working pressure or temperature rating of lowest rated system compo-
nent. 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.
•Check equipment daily. Repair or replace worn or damaged parts immediately.
•Do not alter or modify this equipment.
•Use the equipment only for its intended purpose. Call your Graco distributor for information.
•For professional use only.
•Route hoses away from traffic areas, sharp edges, moving parts and hot surfaces.
•Do not use hoses to pull equipment.‘
•
•Comply with all applicable safety regulations.
Electric Shock Hazard
Improper grounding, setup, or usage of the system can cause electric shock.
• Turn off and disconnect power cord before servicing equipment.
• Use only grounded electrical outlets.
• Use only 3-wire extension cords.
• Ensure ground prongs are intact on sprayer and extension cords.
310645P3
Warnings
WARNING
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.
• Do not point gun at anyone or at any part of the body.
• Do not put your hand over the spray tip.
• Do not stop or deflect leaks with your hand, body, glove, or rag.
• Do not spray without tip guard and trigger guard installed.
• Engage trigger lock when not spraying.
• Follow Pressure Relief Procedure in this manual, when you stop spraying and before cleaning,
checking, or servicing equipment.
Cleaning Solvent Hazard with Plastic Parts
Use only compatible water-based solvents to clean plastic structural or pressure-containing parts. Many
solvents can degrade plastic parts to the point where they could fail. Such failure could cause serious
injury or property damage. See Technical Data on page 34 of this instruction manual and in all other
equipment manuals. Read fluid and solvent manufacturer’s warnings.
Moving Parts Hazard
Moving parts can pinch 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 in this manual. Disconnect power or air supply.
Personal Protective Equipment
Wear appropriate protective equipment when operating, servicing or when in the operating area of this
equipment to help protect yourself from serious injury, including eye injury, inhalation of toxic fumes,
burns and hearing loss. This equipment includes, but is not limited to:
•protective eye wear
•clothing and respirator as recommended by fluid and solvent manufacturer
•hearing protection
•gloves
CALIFORNIA PROPOSITION 65
The engine exhaust from this product contains a chemical known to the State of California to cause
cancer, birth defects or other reproductive harm.
NOTICE
Water or material remaining in unit when temperatures are below freezing can damage pump and/or delay startup.
To insure water and material are completely drained out of unit:
• Remove hose from material outlet,
• Tip sprayer forward 45° to allow material (water) to flow out of pump inlet.
• Before adding material or starting unit in cold weather, circulate warm water through pump.
4310645P
Component Identification
C
R
Component Identification
B
P
K
A
E
F
ti4500a
S
D
H
U
W
M
V
310645P5
L
T
Component Identification
Component Identification
ITEM
AMain Power Switch
BNozzle Storage
CHopper
DHopper Connect/Disconnect
EGraco RotoFlex™ HD Pump
FMaterial Outlet
HAir Outlet
KFluid Flow Regulator and Pressure Gauge
LGun Nozzle (5 sizes)
MGun (see manual 310616)*
PPrime Switch
RPower Cord
SPump Access Screw
THose - 25-ft.
COMPONENT
UMaterial Thickness Gauge
VCleaning Ball
WSpare Hose Gaskets
6310645P
Preparation
Preparation
Pressure Relief Procedure
1. Turn Main Power Switch
(A) OFF.
2. Turn fluid flow regulator
(K) all the way down to
reduce pressure.
3. Open gun air valve (aa).
4. Trigger gun, spraying material back
into hopper (C).
ti4303a
ti4000a
Grounding and Electric
Requirements
The sprayer must be grounded. Grounding reduces the
risk of electrical shock by providing an escape wire for
the electrical current.
•The sprayer cord includes a
K
grounding wire with an appropriate grounding prong.
•The plug must be plugged
into an outlet that is properly
installed and grounded in
A
accordance with all local
codes and ordinances.
•Do not modify plug! If it will
not fit in outlet, have
grounded outlet installed by a
qualified electrician.
Ground
ti4295a
ti4296a
•Sprayer model electric
ti4297a
requirements are provided on
page 2.
ti4294a
Extension Cords
•Only use an extension cord
Ground
with an undamaged 3-prong
plug.
•For up to 100 ft (30.48 m) cord,
use 3-wire, 12 AWG (2.5 mm
2
)
ti4295a
minimum.
310645P7
Preparation
Auxiliary Air Compressor
•Use Auxiliary Air Hookup Kit 287328 when additional atomization air is necessary.
NOTICE
Attaching auxiliary air to sprayer without using the
Auxiliary Air Hookup Kit will damage sprayer.
Generators
7500 W (7.5 KW) minimum.
Tips for Using Generators
•Before running sprayer, make sure it is at room temperature. This will reduce startup current.
•Run generator at full throttle.
Hose Lengths
•The system comes with a twin line hose set consisting of a 1 in. ID x 25 ft (25 mm x 7.6 m) material
hose and a 3/8 in. ID air hose. Additional hose sections can be added. Total final length of hose used
should not exceed 100 feet in length.
NOTICE
Sprayer air hose fitting can get hot! Allow sprayer to
cool down 5 minutes before removing air hose.
8310645P
Removing and Replacing Hopper, Front and Back Covers
Removing and Replacing Hopper, Front and Back
Covers
Before performing any service on sprayer
always:
•Read all warnings, page 3.
•Read operating instructions manual, page 2.
•Relieve Pressure, page 7.
•Turn main power switch (A) OFF.
•Unplug sprayer from outlet.
•Remove air and material hoses.
•Clean sprayer. See Operation Manual 310624 or
310625.
Hopper
Removing Hopper
1. To remove hopper loosen fitting. Fittings are
hand-tightened
and should not
require tools to
loosen.
2. Lift hopper
straight up, off
frame.
Replacing Hopper
1. To replace hopper, position
drain over fitting as far as it
will
go, making sure
identification
label faces out.
ti4503a
Front Cover
Removing Cover
1. Remove hopper.
2. Unscrew
and remove
knob (S).
3. Place you
hand under
front, bottom edge of
cover.
(3a) Lift
cover up,
(3b) then
pull bottom
toward you
and out to remove cover.
S
Replacing Cover
1. Place your
hand under
front, bottom
edge of
cover. (1a)
Position top
edge of
cover under
top metal lip
on sprayer
frame.
(1b) Then
push up on
cover so
lower plastic edge of cover has room to clear front
metal frame and slide cover into place. To position
cover correctly, it will go in at an angle.
S
3a
3b
1a
1b
ti4408a
ti4411a
2. Hand tighten fitting.
310645P9
ti4504a
2. Replace knob (S). Hand tighten fitting.
3. Replace hopper.
Removing and Replacing Hopper, Front and Back Covers
Back Cover
To access the motor and all other components, it is necessary to remove the hopper, front and back covers.
Removing Cover
1. Completely
remove 6
screws (2 on
top and each
side) from
cover.
ti4430a
2. Lift cover up
and then tilt it
back and off
sprayer frame.
Replacing Cover
1. To reposition
cover on sprayer
frame, tip the
cover back,
toward you and
slide it down, into
place in the base
of the frame. Then
push the top back
into place. Align
screw holes in
side and top of
cover with holes in
frame.
2. Replace and
tighten screws.
ti4432a
ti4431a
ti4433a
10310645P
RotoFlex™ HD Pump
RotoFlex™ HD Pump
Use RotoFlex HD Pump Replacement Kit 287314.
NOTE: After replacing RotoFlex HD Pump hose, always
follow Hose Break-In Procedure, page 13, before operating sprayer.
Disassembly
First read and follow instructions in the Before performing any service on sprayer section, page 9.
Then remove hopper and front cover, page 9.
1. Loosen and remove
hose extension.
ti4377a
4. Rotate pump assembly sideways. Pull
entire assembly out of
front of sprayer frame.
ti4376a
5. Separate the inner and
outer hose brackets.
2. Loosen and remove
knob.
3. Slide RotoFlex HD
hose off rollers.
ti4374a
ti4378a
ti4519a
6. Slide hose ends out of
slots in outer hose
bracket (slide out of
short slot first).
7. Pull hose out of inner
hose bracket.
8. Discard pump hose.
ti4379a
310645P11
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