Healthyway Paint Sprayer 310645H User Manual

Repair and Parts  
RTX 1500 Electric Texture Sprayer  
310645H  
- For Water-Based Materials Only -  
(Consult your Material Supplier for Warnings and Application Requirements)  
Models: Page 2  
Maximum Working Air Pressure: 45 psi (3.1 bar)  
Maximum Working Fluid Pressure: 100 psi (6.9 bar)  
Read all warnings and instructions.  
CAUTION  
Use RTX 1500 non-bleeder texture gun 248091.  
All other guns will damage sprayer.  
ti4305a  
Graco Inc. P.O. Box 1441 Minneapolis, MN 55440-1441  
Copyright 2004  
Graco Inc. is registered to I.S. EN ISO 9001  
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Warnings  
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  
WARNING  
This symbol alerts you to the possibility of seri-  
ous injury or death if you do not follow the  
instructions.  
Caution  
CAUTION  
Alerts you to the possibility of damage or destruction  
of equipment if you do not follow the instructions.  
Warnings  
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.‘  
Keep children and animals away from work area.  
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.  
310645H  
3
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Warnings  
WARNINGS  
Pressurized Equipment Hazard  
Compressed air can inject in skin. Air tubing rupture can cause injury if disconnected while under  
pressure. To reduce risk of injury:  
• Never exceed maximum working pressure of any attachment.  
• Do not direct airstream at body.  
• Follow Pressure Relief Procedure, page 7 whenever you are instructed to relieve pressure, stop  
spraying, service equipment, install or clean spray nozzle or disconnect or connect hose.  
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  
CAUTION  
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.  
4
310645H  
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Component Identification  
Component Identification  
B
C
R
P
K
A
E
F
S
ti4500a  
D
W
H
M
U
L
V
T
310645H  
5
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ComponentIdentification  
Component Identification  
COMPONENT  
ITEM  
A
Main Power Switch  
Nozzle Storage  
B
C
Hopper  
D
Hopper Connect/Disconnect  
Graco RotoFlex™ HD Pump  
Material Outlet  
E
F
H
Air Outlet  
K
Fluid Flow Regulator and Pressure Gauge  
Gun Nozzle (5 sizes)  
Gun (see manual 310616)*  
Prime Switch  
L
M
P
R
Power Cord  
S
Pump Access Screw  
Hose - 25-ft.  
T
U
Material Thickness Gauge  
Cleaning Ball  
V
W
Spare Hose Gaskets  
6
310645H  
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Preparation  
Preparation  
Pressure Relief Procedure  
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.  
1 Turn Main Power Switch  
(A) OFF.  
WARNING  
ti4292a  
2 Turn fluid flow regulator  
(K) all the way down to  
reduce pressure.  
Read warnings, page 3.  
• The sprayer cord includes a  
Ground  
grounding wire with an appro-  
priate grounding prong.  
K
ti4295a  
ti4303a  
3 Open gun air valve (aa).  
• The plug must be plugged into  
an outlet that is properly  
installed and grounded in  
accordance with all local codes  
and ordinances.  
A
ti4296a  
• Do not modify plug! If it will not  
fit in outlet, have grounded out-  
let installed by a qualified elec-  
trician.  
ti4000a  
4 Trigger gun, spraying  
material back into  
hopper (C).  
ti4297a  
• Sprayer model electric require-  
ments are provided on page 2.  
Extension Cords  
• Only use an extension cord with  
Ground  
ti4294a  
an undamaged 3-prong plug.  
• For up to 100 ft (30.48 m) cord,  
2
use 3-wire, 12 AWG (2.5 mm )  
minimum.  
ti4295a  
310645H  
7
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Preparation  
Auxiliary Air Compressor  
Hose Lengths  
• Use Auxiliary Air Hookup Kit 287328 when additional  
atomization air is necessary.  
• The system comes with a twin line hose set consist-  
ing 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.  
CAUTION  
Attaching auxiliary air to sprayer without using the  
Auxiliary Air Hookup Kit will damage sprayer.  
CAUTION  
Generators  
Sprayer air hose fitting can get hot! Allow sprayer to  
cool down 5 minutes before removing air hose.  
7500 W (7.5 KW) minimum.  
Tips for Using Generators  
• Before running sprayer, make sure it is at room tem-  
perature. This will reduce startup current.  
• Run generator at full throttle.  
8
310645H  
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Removing and Replacing Hopper, Front and Back Covers  
Removing and Replacing Hopper, Front and Back Covers  
Before performing any service on sprayer  
always:  
Front Cover  
Removing Cover  
1 Remove hopper.  
• 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.  
2 Unscrew and  
remove  
3a  
3b  
knob (S).  
• Remove air and material hoses.  
• Clean sprayer. See Operation Manual 310624 or  
310625.  
3 Place you  
hand under  
front, bot-  
tom edge of  
cover.  
ti4408a  
Hopper  
Removing Hopper  
(3a) Lift  
cover up,  
(3b) then  
pull bottom  
toward you  
1 To remove hopper  
loosen fitting.  
Fittings are  
S
hand-tightened  
and should not  
require tools to  
loosen.  
and out to remove cover.  
Replacing Cover  
2 Lift hopper straight  
up, off frame.  
1 Place your  
hand under  
front, bottom  
edge of cover.  
(1a) Position  
top edge of  
cover under  
top metal lip  
on sprayer  
ti4503a  
Replacing Hopper  
1 To replace  
hopper, position  
drain over fitting  
as far as it will go,  
making sure  
identificationlabel  
faces out.  
1a  
ti4411a  
1b  
frame.  
(1b) Then  
push up on  
cover so lower  
plastic edge  
S
2 Hand tighten fit-  
ting.  
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.  
ti4504a  
2 Replace knob (S). Hand tighten fitting.  
3 Replace hopper.  
310645H  
9
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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.  
Replacing Cover  
1 To reposition cover  
on sprayer frame,  
tip the cover back,  
toward you and  
Removing Cover  
1 Completely  
remove 6  
slide it down, into  
place in the base of  
the frame. Then  
push the top back  
into place. Align  
screws (2 on top  
and each side)  
from cover.  
screw holes in side  
and top of cover  
ti4430a  
with holes in frame.  
ti4432a  
2 Lift cover up and  
then tilt it back  
and off sprayer  
frame.  
2 Replace and  
tighten screws.  
ti4433a  
ti4431a  
10  
310645H  
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RotoFlex™ HD Pump  
RotoFlex™ HD Pump  
Use RotoFlex HD Pump Replacement Kit 287314.  
4 Rotate pump assembly  
sideways. Pull entire  
assembly out of front of  
sprayer frame.  
IMPORTANT  
• After replacing RotoFlex HD Pump hose, always  
follow Hose Break-In Procedure, page 13,  
before operating sprayer.  
Disassembly  
ti4376a  
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.  
5 Separate the inner and  
outer hose brackets.  
ti4377a  
6 Slide hose ends out of  
slots in outer hose  
bracket.  
ti4378a  
2 Loosen and remove knob.  
• Slide out of short slot  
first.  
ti4374a  
3 Slide RotoFlex HD hose  
off rollers.  
7 Pull hose out of inner  
hose bracket.  
ti4519a  
ti4379a  
8 Discard pump hose.  
310645H  
11  
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RotoFlex™ HD Pump  
4 Slide plates together, inserting inner plate in outer  
plate, matching alignment holes.  
Reassembly  
1 Bend and kink new  
pump hose from kit in  
the middle as shown,  
making sure dots on  
hose fittings face each  
other.  
DOTS  
5 Replace bracket  
assembly in housing  
making sure the  
mounting screw hole,  
located in the top cen-  
ter of the inner plate,  
faces up.  
ti3127a  
2 Insert hose ends  
through holes in inner  
hose bracket, keeping  
dots on fittings facing  
each other and kinked  
portion of hose hori-  
zontal to the underside  
of bracket.  
ti4383a  
6 Slide pump hose  
around rollers. Make  
sure the rollers are  
horizontally parallel to  
each other.  
alignment  
holes  
ti4520a  
7 Slide feet on the bot-  
tom of hose bracket,  
into the slot on the  
bottom of sprayer.  
3 Slide hose ends into  
outer hose bracket,  
making sure dots on fit-  
tings face each other  
and alignment holes  
are together.  
• Slide into long slot  
first.  
ti4429a  
8 Replace knob. Hand  
tighten.  
9 Reattach hose exten-  
sion.  
10 Replace front cover  
and hopper. See  
ti4381a  
Removing and  
Replacing Hopper,  
Front and Back Cover,  
page 9.  
ti4386a  
12  
310645H  
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RotoFlex™ HD Pump  
3 Turn power switch (A) on.  
4 Hold in prime switch (P).  
Hose Break-In Procedure  
1 Make sure fluid flow  
regulator (K) is turned all  
the way down.  
ti4653a  
K
P
ti4303a  
2 Pour approxi-  
mately 1 gallon  
hot water in  
ti4364a  
WATER  
sprayer hopper  
to lubricate the  
pump.  
5 Turn fluid flow regulator  
(K) up to full pressure.  
ti4301a  
K
ti4655a  
6 Run sprayer dry for 1 to 1-1/2 minutes.  
310645H  
13  
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Compressor and Motor Repair  
Compressor and Motor Repair  
For 120 V sprayer use Compressor and Motor  
Replacement Kit, 287315.  
4 Loosen 4 bolts (2 each  
side) to loosen tension on  
belt.  
For 230 V sprayer use Compressor and Motor  
Replacement Kit, 287344.  
Kits include motor/compressor and mounting hardware.  
Disassembly  
ti4388b  
First read and follow instructions in the Before  
performing any service on sprayer section, page 9.  
5 Slide belt off motor pully.  
Then remove hopper, front and back covers, page 9.  
Remove hose extension and RotoFlex HD Pump  
assembly from frame, page 11.  
1 Remove two screws and  
access cover on the left  
side of the motor.  
ti4459a  
6 Disconnect air line from  
compressor to cooler  
and remove.  
ti4457a  
2 Remove ground nut and  
disconnect green ground  
wire.  
ti4460a  
7 Remove 3 screws on  
right side of cover and  
remove cover.  
ti4458a  
3 Disconnect black and white  
wires to motor.  
ti4479a  
ti4405a  
ti4478a  
14  
310645H  
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Compressor and Motor Repair  
8 Loosen 2 shoulder  
bolts about 2-3 turns.  
Do not remove them.  
Reassembly  
1 Using two new shoulder  
bolts and rubber mounts  
included in your kit, insert  
bolts into openings until  
they start to snug up on  
rubber mounts.  
ti4463a  
ti4465a  
9 Remove single  
shoulder bolt on other  
side of motor com-  
pletely.  
2 Slide new motor into  
sprayer frame, aligning  
motor frame opening  
under bolts. Tighten bolts.  
ti4425a  
ti4468a  
10 Slide out motor  
assembly.  
3 Replace shoulder bolt  
on left side with new  
bolt from your kit.  
Tighten bolt.  
ti4424a  
ti4462a  
4 Replace end cover.  
Replace and tighten 3  
screws.  
11 Completely remove old  
shoulder bolts and rub-  
ber mounts.  
ti4484a  
ti4464a  
12 Thoroughly clean inside housing to remove dust and  
debris.  
ti4485a  
5 Reattach air line to cooler  
and compressor. Tighten  
fitting.  
ti4516a  
310645H  
15  
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Compressor and Motor Repair  
6 Slide belt over pulleys and set tension. See Replacing  
Belt, page 19.  
8 Replace reattach green  
ground wire and grounding  
nut.  
7 Reattach black and white  
wires to motor.  
Wires are not polarity  
sensitive.  
ti4470a  
ti4412a  
9 Replace cover plate and  
screws.  
10 Replace RotoFlex HD  
Pump and hose exten-  
sion, page 12.  
11 Replace front and back  
covers and hopper. See  
Removing and Replacing  
Hopper, Front and Back  
Cover, page 9.  
ti4471a  
16  
310645H  
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Compressor Rebuild Kit  
Compressor Rebuild Kit  
To replace piston, seals and sleeve.  
4 Remove 3/8 in. bolt  
holding piston to  
For 120 V sprayer use Compressor Rebuild Kit 287330.  
For 230 V sprayer use Compressor Rebuild Kit 287331.  
motor shaft.  
ti4707a  
Disassembly  
First read and follow instructions in the Before  
performing any service on sprayer section, page 9.  
Then remove back cover, page 9.  
5 Loosen 4 bolts on top  
of motor housing.  
1 Disconnect air line to  
motor.  
ti4708a  
ti4460a  
2 Remove 3 screws in  
side of motor cover.  
Remove cover.  
6 Remove bolts and  
housing from motor.  
ti4479a  
ti4478a  
ti4709a  
7 Remove piston rod  
from motor.  
3 Remove fan bolt from  
center of fan and  
remove fan from  
housing.  
8 Using parts in kit  
replace piston, seals  
and sleeve.  
ti4710a  
ti4706a  
310645H  
17  
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Compressor Rebuild Kit  
5 Replace motor fan  
and center fan bolt.  
Reassembly  
1 Insert new piston rod from  
kit in motor housing.  
6 Tighten bolt.  
ti4704a  
ti4700a  
7 Replace motor  
cover and screws.  
2 Replace and tighten  
piston bolt.  
3 Replace top motor  
hosing and 4 bolts.  
ti4701a  
ti4485a  
8 Reconnect air line  
from motor to  
cooler.  
9 Replace back cover.  
See Removing and  
Replacing Hopper,  
Front and Back  
4 Tighten bolts.  
Cover, page 9.  
ti4703a  
18  
310645H  
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Removing and Replacing Belt  
Removing and Replacing Belt  
Use Belt Replacement Kits 118845.  
Replacing Belt  
1 Using new belt from Kit,  
position new belt around  
pulleys making sure the  
teeth in the belt are  
First read and follow instructions in the Before  
performing any service on sprayer section, page 9.  
Then remove hopper, front and back covers, page 9.  
properly engaged with  
teeth on pulleys.  
Remove hose extension and RotoFlex HD Pump  
assembly from frame, page 11.  
Removing Belt  
ti4392a  
1 Loosen 4 bolts (2 each  
side) to loosen tension on  
belt.  
2 Replace support rod.  
Tighten 2 bolts (1 each  
side) to secure support-  
ing rod.  
ti4388b  
ti4393a  
2 Loosen 2 bolts (1 each  
side) holding down sup-  
port rod.  
3 Insert crow bar under  
assembly as shown and  
raise motor assembly  
until desired belt ten-  
sion is achieved.  
ti4388a  
ti4469a  
3 Using a screw driver for  
leverage, lift up on motor  
support rod on one side  
of motor and ease it out  
of the holding bracket far  
enough to remove old  
belt. Discard old belt.  
4 While holding motor  
assembly in place with  
crow bar. Spin pulley to  
assure proper belt  
engagement. Adjust  
motor assembly position  
as necessary.  
ti4472a  
At the same time, slide in  
the new belt.  
ti4391a  
ti4459a  
310645H  
19  
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Removing and Replacing Belt  
5 Tighten all 4 bolts.  
A correctly tensioned belt will feel very tight. To  
measure correct tension, apply 4-5 lbs pressure  
at belt midpoint with thumb. Belt should have  
approximately 1/8 in. (3.175 mm) deflection.  
ti4394a  
6 Turn belt one more  
time with your hand to  
make sure teeth are  
properly engaged and  
tension is correct.  
7 Replace RotoFlex HD  
Pump and hose exten-  
sion, page 12.  
ti4477a  
A loose belt will not last long. If in doubt, tighten  
more.  
ti4473a  
8 Replace back and front  
covers and hopper.  
See Removing and  
Replacing Hopper, Front and Back Cover, page 9.  
20  
310645H  
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Roller Replacement  
Roller Replacement  
Use Roller Replacement Kit 287321.  
Reassembly  
1 Replace roller assembly.  
Kit includes 2 rollers, 4 nylon washer, and 2 retaining  
rings.  
Disassembly  
ti4398a  
First read and follow instructions in the Before  
performing any service on sprayer section, page 9.  
Then remove hopper, front and back covers, page 9.  
2 Reinstall snap ring.  
Remove hose extension and RotoFlex HD Pump  
assembly from frame, page 11.  
1 Remove snap ring.  
ti4399a  
3 Replace RotoFlex HD Pump and hose extension,  
page 12.  
ti4396a  
4 Replace back and front covers and hopper. See  
Removing and Replacing Hopper, Front and Back  
Cover, page 9.  
2 Remove roller assembly  
from rotor pins (a).  
3 Clean rotor pins (a) and  
ti4397a  
check for damage. If pins  
are worn or damaged,  
replace rotor assembly,  
(Rotor Assembly  
a
Replacement, page 22.  
310645H  
21  
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Rotor Assembly Replacement  
Rotor Assembly Replacement  
Use Pump Assembly Replacement Kit 287255.  
Reassembly  
1 Put new rotor assembly from kit on shaft.  
Disassembly  
2 Insert a wrench in the  
pulley to prevent it  
from moving..  
First read and follow instructions in the Before  
performing any service on sprayer section, page 9.  
Then remove hopper, front and back covers, page 9.  
Remove hose extension and RotoFlex HD Pump  
assembly from frame, page 11.  
ti4714a  
1 To prevent rotor assembly  
from moving, insert a long  
screw driver or pry bar in the  
pulley.  
3 Replace bolt. Torque to  
40 ft. lbs.  
ti4714a  
ti4712a  
2 Remove large bolt and  
washer in center of rotor  
assembly.  
4 Replace RotoFlex HD Pump and hose extension,  
page 12.  
3 Pull rotor assembly off  
shaft.  
ti4711a  
5 Replace back and front covers and hopper. See  
Removing and Replacing Hopper, Front and Back  
Cover, page 9.  
22  
310645H  
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Air Cylinder and Solenoid Valve  
Air Cylinder and Solenoid Valve  
Use Cylinder Replacement Kit, 287323.  
4 Gently push cylinder forward,  
relieving tension on pin. Pull  
out pin.  
For 120 V sprayer use Solenoid Replacement Kit  
287324.  
For 230V sprayer use Solenoid Replacement Kit  
287351.  
ti4409a  
Disassembly  
If replacing solenoid valve only, it can be done at  
this time.  
First read and follow instructions in the Before  
performing any service on sprayer section, page 9.  
a Using an adjustable wrench, rotate entire solenoid  
valve assembly counter clockwise from cylinder.  
b Replace solenoid valve and continue with step 4 of  
reassembly.  
Then remove hopper, front and back covers, page 9.  
Remove hose extension and RotoFlex HD Pump  
assembly from frame, page 11.  
5 Lift cylinder up and pull it  
back.  
1 Remove hose from quick  
release fitting by using your  
fingers on one hand to push  
in on ring while at the same  
time, using the other hand,  
gently pull the hose out of the  
6 Remove dampening  
grommet.  
ti4518a  
fitting.  
7 Using a 15/16 in. wrench,  
loosen nut, located inside  
sprayer frame at the end  
ti4406a  
2 Remove electric wire ter-  
minal connections.  
of the air cylinder.  
ti4415a  
8 Using a 15/16 in. wrench,  
loosen nut on the other  
ti4416a  
side of the sprayer frame.  
3 Remove cotter key located  
on the end of the cylinder pin,  
by using a pliers to straighten  
the ends and pull it out of the  
hole.  
9 Pull cylinder out of sprayer  
frame.  
If replacing cylinder only,  
remove solenoid valve  
(see a and b above) and  
reinstall on new cylinder.  
ti4453a  
ti4414a  
310645H  
23  
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Air Cylinder and Solenoid Valve  
6 Replace cotter pin  
Reassembly  
through hole in pin,  
bending ends to secure.  
1 Insert crowned backing  
nut on shaft of cylinder.  
2 Using new cylinder  
from kit, position cylin-  
der in sprayer frame,  
inserting end of cylin-  
der through pump  
ti4456a  
ti4421a  
7 Reattach electric wire  
terminals. Terminals are  
not polarity sensitive and  
can be connected to  
either post.  
bracket mounting hole.  
ti4417a  
3 Install locking nut flush  
to end of shaft.  
8 Gently push hose in  
quick release fitting.  
4 Install dampening  
grommet.  
5 Align hole in end of air cylin-  
der and replace pin.  
ti4407a  
9 Replace RotoFlex HD Pump and hose extension,  
page 12.  
ti4410a  
10 Replace front cover and hopper. See Removing and  
Replacing Hopper, Front and Back Cover, page 9.  
ti4455a  
24  
310645H  
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Relief Valve and Flow Sensor Manifold  
Relief Valve and Flow Sensor Manifold  
For 120 V sprayer use Relief Valve Replacement Kit  
287325.  
Reassembly  
1 Position new relief valve from Kit in back of sprayer.  
For 230 V sprayer use Relief Valve Replacement Kit  
287350.  
2 Replace and tighten screws.  
3 Reattach wires to Relief Valve.  
4 Reattach air line from cooler to manifold.  
Disassembly  
First read and follow instructions in the Before  
performing any service on sprayer section, page 9.  
5 Reattach air line to regulator.Replace RotoFlex HD  
Pump and hose extension, page 12.  
Then remove hopper, front and back covers, page 9.  
6 Replace front cover and hopper. See Removing and  
Replacing Hopper, Front and Back Cover, page 9.  
1 Remove air line to  
regulator.  
2 Remove air line from  
cooler to manifold.  
ti4423a  
3 Disconnect wires to Relief Valve. Pay attention to their  
location to insure they are reattached correctly.  
4 Remove 2 nuts securing  
Relief Valve to sprayer.  
ti4418a  
5 Remove Relief Valve  
from sprayer frame.  
ti4419a  
310645H  
25  
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Air Flow Sensor Replacement  
Air Flow Sensor Replacement  
For 120 V sprayer use Sensor Replacement Kit 287326.  
2 Rotate coun-  
ter-clockwise to  
remove sensor  
from manifold.  
For 230 V sprayer use Sensor Replacement Kit 287345.  
If you are just replacing the sensor, you do not  
have to remove the motor first.  
Disassembly  
ti4480a  
First read and follow instructions in the Before  
performing any service on sprayer section, page 9.  
Reassembly  
Then remove hopper, front and back covers, page 9.  
1 Rotate new sensor  
from kit clockwise, all  
the way into opening  
in Relief Valve  
Remove hose extension and RotoFlex HD Pump  
assembly from frame, page 11.  
1 Disconnect all  
wire  
housing. Lightly  
tighten nut.  
connections.  
ti4486a  
2 Reconnect all wires.  
ti4481a  
ti4487a  
3 Replace RotoFlex HD  
Pump and hose exten-  
sion, page 12.  
ti4482a  
ti4488a  
4 Replace back and front  
covers and hopper.  
See Removing and  
Replacing Hopper,  
Front and Back Cover,  
page 9.  
WHITE WIRE  
WHITE WIRE  
26  
310645H  
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Troubleshooting  
Troubleshooting  
Pressure Relief, page 7  
Problem  
Cause  
Solution  
Turn switch on.  
Sprayer won’t run or stops intermit-  
tently  
Power switch not on  
No power at wall outlet  
Check outlet by plugging in another  
appliance. If appliance does not  
work, try another outlet.  
Wrong size generator  
Use a 7500 watt or larger generator.  
Refer to Generator Requirements,  
page 8.  
Temperature too cold  
Allow unit to warm up.  
Too many items on same circuit  
Internal thermal switch tripped  
Unplug other items from circuit.  
Self-resetting. Allow unit to cool down  
15 minutes and restart. Usually  
occurs when wrong size extension  
cord is used.  
Extension cord too long or wrong  
gauge  
Use a 12 gage extension cord or  
remove extension cord. Refer to  
Grounding and Electric Require-  
ments, page 7.  
Breaker tripped  
Air lock  
Reset breaker.  
Pump won’t pump material or low  
output  
Open air valve on gun.  
Mix too thick  
Add water to thin material. Use Mate-  
rial Thickness Gauge.  
Loose fittings  
Plugged gun  
Check and retighten all fittings.  
Relieve Pressure, page 7. Remove  
gun from hose. Clean gun.  
RotoFlex HD Pump worn out  
Replace hose.  
Pump cold or material frozen in pump Move pump to warm room and allow  
it to warm up or run hot water through  
sprayer.  
Sensor is bad  
Replace, page 26  
Check air system for leaks  
Remove shroud and examine for air  
leaks  
Loose wire  
Remove shroud and examine wiring  
Rebuild compressor  
No air pressure  
Sensor is bad  
Soft start won’t work/pump, always  
loaded  
Change sensor, page 26  
Air leak due to bad seal keeps valve Replace seal  
open  
Normal soft start system delay  
Release trigger for 10-15 seconds.  
Retry.  
Switch is not operating properly  
Replace switch  
Damaged solenoid valve on cylinder Check gun supply, hose and sprayer  
for leaks  
AIr leak  
310645H  
27  
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Troubleshooting  
Problem  
Cause  
Solution  
Replace hose.  
Material runs out of bottom of sprayer RotoFlex HD Pump worn out  
Loose fittings  
Check and retighten all fittings.  
Open gun air valve.  
No air from compressor  
Gun air valve closed  
Gun needle plugged  
Lines not connected  
Clean needle and retry.  
Check all quick disconnect connec-  
tions to gun and hoses.  
Damaged hose  
Replace hose.  
Worn compressor  
Service compressor. Contact a quali-  
fied Graco Service Center.  
Speed of application too slow  
Material too thick  
Nozzle too small  
Thin material.  
Change nozzles to a larger size. See  
Operation Manual, Recommended  
Nozzle Selection Chart, page 20.  
Speed of application too slow (cont.) Flow control set too low  
Plugged or dirty gun  
Increase flow control setting  
Relieve Pressure, page 7. Clean  
gun.  
Kinked hose  
Unkink hose.  
Gun fluid flow adjustment set too low Increase flow adjustment with flow  
adjustment nut.  
Intermittent flow/sputtering or air in  
material  
Hopper connection not tight  
Debris in system  
Check gasket. TIghten connection.  
Clean  
Air quick disconnect does not stay  
connected.  
Dirty or corroded fitting  
Clean thoroughly. Soak in oil. Apply a  
few drops of light oil.  
Gun will not shut off  
Worn nozzle or needle.  
Relieve Pressure, page 7. Replace  
worn parts.  
Debris in needle passage  
Relieve Pressure, page 7. Clean.  
Fluid leaking at Flow Adjustment Nut Damaged seal.  
Relieve Pressure, page 7. Replace  
seal.  
Needle adjustment won’t adjust  
Dirty threads  
Clean threads  
Nozzle not on gun  
Put nozzle on gun  
Flow nut set to maximum adjustment Turn flow nut adjustment the other  
way  
28  
310645H  
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Air Diagram  
Air Diagram  
Air Cylinder  
Air Compressor  
Air Cooler  
Gun  
Regulator  
Guage  
One Way Valve  
One Way Valve  
Air Flow Control  
ti4369a  
Wiring Diagram  
Air Compressor  
Air Cylinder  
39  
51  
32  
Prime  
Switch  
8
Power  
Switch  
150/151  
50  
Air Flow  
Control  
Green  
50  
White  
Black  
ti4370d  
50  
310645H  
29  
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Parts  
Parts  
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30  
310645H  
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Parts List  
Parts List  
Item  
Item  
No. Part No. Description  
Qty  
No. Part No. Description  
Qty  
39  
40  
41  
15D628 CONDUCTOR, ground  
103785 RIVET  
287327 KIT, repair, shaft, bracket, pump  
assbly.  
287256 BRACKET, compressor  
118869 TUBE  
15D610 SHAFT, motor, mount  
287346 SHIELD, rear, assbly  
(includes 19, 49A, 49B, 49C)  
1
2
1
1
287315 KIT, compressor replacement  
(includes 1A and 1B-1E),  
120V sprayers  
1
42  
43  
45  
49  
1
1
1
1
287330 KIT, compressor rebuild,  
120V sprayers  
287344 KIT, compressor replacement  
(includes 1A, and 1B-1D),  
230V sprayers  
49A 15D561 COVER, tool tray  
49B15D939 LABEL, warning, English, French,  
Spanish  
287336 KIT, label, warning, all languages  
except those included in 15D939  
49C15D940 LABEL, identification  
51  
52  
53  
54  
55  
56  
57  
58  
62  
63  
67  
73  
74  
82  
1
287331 KIT, compressor rebuild,  
230V sprayers  
1A  
1B  
1C  
1D  
1E  
4
119872 SCREW, shoulder  
118886 GROMMET, isolator  
118889 GROMMET, isolator  
119381 COVER, terminal  
121479 CAPACITOR, start  
118845 BELT  
3
2
1
1
1
1
2
1
1
15D634 WIRE, jumper  
1
2
8
1
1
1
2
1
2
2
2
2
1
1
116937 BEARING, flanged, bronze  
117630 SCREW, torx, tri lob  
116666 TUBE, air  
287304 HOSE SET, twin line, 1 in. x 25-ft  
15C090 GAUGE, thickness, fluid  
183401 KEY, parallel  
9
13  
16  
117728 FITTING, compression, union  
15D156 PULLEY, rotor  
118888 HOSE, air (includes 1/4 in. tubing  
and one-way valve)  
19  
21  
22  
31  
32  
33  
34  
36  
37  
15D862 NUT, hand  
1
1
1
4
1
2
1
2
1
116720 COUPLER, air, quick disconnect  
108851 WASHER, plain  
118876 TUBE, air, aluminum  
117637 NUT, compression  
112395 SCREW, cap  
15D633 WIRE, jumper  
103473 STRAP, tie, wire  
15B815 COOLER  
101242 RING, retaining, ext.  
287255 ROTOR, pump, assbly  
(includes 38, 38A, 38B)  
106276 SCREW, cap, hex head  
113397 BALL, sponge, 30 mm  
112785 SCREW, flanged, hex head  
115498 SCREW, mach, slot, hex, wash hd  
118887 HOSE, air (includes 1/4 in. tubing  
and one-way valve)  
88  
118866 WASHER, flat  
1
1
101 248091 GUN, non-bleeder  
38  
287321 KIT, roller replacement  
(includes 38A, 38B and two rollers)  
2
Replacement Danger and Warning labels, tags and  
38A 113983 RING, retaining, ext  
38B 117726 WASHER, nylon  
2
4
cards are available at no cost.  
310645H  
31  
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Parts  
Parts  
18  
91  
154  
A
30  
92  
12  
17  
90  
66  
81  
27  
6
3
29  
93  
7
26  
10  
25  
70  
71  
24  
35  
ti4372C  
8
60  
59  
83  
58  
72  
14  
5B  
89  
5A  
5
15  
55  
A
77  
23  
20  
93  
19  
28  
153  
151  
150a  
152a  
152b 152c 152d 152e  
150b  
150c  
32  
310645H  
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Parts List  
Parts List  
Item  
Item  
No. Part No. Description  
Qty  
No. Part No. Description  
3
5
Qty  
51  
54  
55  
58  
59  
60  
66  
70  
71  
72  
74  
77  
15D634 WIRE, jumper  
116666 TUBE, air  
287304 HOSE SET, twin line, 1 in. x 25-ft  
116720 COUPLER, air, quick disconnect  
104641 FITTING, bulkhead  
116658 FITTING, tube, male, 1/4 NPT  
116171 BUSHING, strain relief  
116411 SPRING, compression  
116477 WASHER, flat, nylon  
1
1
118844 REGULATOR, air, 1/8 in. NPT  
287323 KIT, cylinder, replacement,  
(includes 5A, 5B, 89)  
15D576 SPACER, crowned  
118871 NUT, lock, 1/2-20  
117720 GAUGE, pressure  
115244 NUT, regulator  
186620 LABEL, ground, symbol  
117693 SWITCH, power  
119064 SWITCH, power  
15D559 VALVE, assembly, 120V (includes  
sensor) sprayer  
287350 VALVE, assembly, 230V (includes  
sensor) sprayer  
15D560 VALVE, cylinder, 120V sprayer  
287351 VALVE, cylinder, 230V sprayer  
118888 HOSE, air (includes 1/4 in. tubing  
and one-way valve)  
1
1
1
1
1
1
1
2
2
2
1
2
2
1
5A  
5B  
6
1
1
1
1
1
1
1
1
7
8▲  
10  
12  
14  
116342 CAP, end  
115498 SCREW, mach, slot, hex, wash hd  
102040 NUT, lock, hex  
81198492 LABEL, warning  
82  
118887 HOSE, air (includes 1/4 in. tubing  
and one-way valve)  
15  
16  
1
1
1
8315D089 LABEL, warning, hot surface  
89 801012 GROMMET  
9015D951 LABEL, identification  
9115D953 LABEL, identification  
9215D952 LABEL, identification  
93  
150  
1
1
1
1
1
4
17  
18  
15C968 TUBE, air  
287347 HOPPER, texture (includes  
bracket)  
1
1
118872 GASKET  
CORD, power  
19  
20  
15D862 NUT, hand  
1
1
150a 15D630 Americas/Canada, 120V, 60 Hz  
150b 15E056 Europe/Asia, 230V, 50 Hz  
(hardwired, rubber cord)  
150c 15E061 United Kingdom, 110V, 60, Hz  
151 15D902 CORD, power, Europe/Austra-  
lia/China, 230V, 50 Hz (requires  
1
1
287326 KIT, sensor only, 120V  
287345 KIT, sensor only, 230V  
287348 SHIELD, front (includes 28)  
108471 KNOB, pronged  
15D589 BRACKET, hose, outer  
15D588 BRACKET, hose, inner  
287314 KIT, RotoFlex HD Pump  
23  
24  
25  
26  
27  
1
1
1
1
1
1
1
1
1
2
1
1
cordset adapter, 152, following)  
ADAPTER, cordset, (for 15D902),  
152  
28189286 LABEL, warning  
152a 242001 Europe  
152c 242002 Italy  
152d 242003 Denmark  
152d 242004 Switzerland  
152e 242005 Australia/China  
153 195551 RETAINER, (for 15D902)  
154 15F966 BAFFLE, hopper  
1
1
1
1
1
1
1
29  
30  
32  
35  
118885 HOSE, coupled (includes grommet)  
287254 FRAME, texture, blue  
15D633 WIRE, jumper  
116478 WHEEL, pneumatic  
49B15D939 LABEL, warning, English, French,  
Spanish  
287336 KIT, label, warning, all languages  
except those included in 15D939  
49C15D940 LABEL, identification  
310645H  
33  
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TechnicalData  
Technical Data  
Maximum working fluid pressure  
Maximum working air pressure  
Material pressure operating range  
Compressor  
100 psi (6.9 bar)  
45 psi (3.1 bar)  
0-100 psi (0 to 6.9 bar)  
Type  
Oilless  
Air delivery  
6.5 CFM @ 40 psi (184.1 lpm @ 2.8 bar)  
Motor  
120V, 60 Hz 15A  
230V, 50 Hz 10A  
Hopper capacity  
15 US gallons (57 liters)  
2.0 gpm (7.57 lpm)  
Maximum delivery with texture material  
Dimensions  
Length  
27 in. (685.8 mm) with handles  
26 in. (660.4 mm)  
Width  
Height  
40 in. (1016 mm)  
Weight  
With hoses and gun  
Without hoses and gun  
Wetted parts  
147 lb (66.68 kg)  
131 lb (59.47 kg)  
PVC, Buna-N, anodized aluminum, powder coat  
aluminum, brass, polyethylene, SST, UHMW  
Sound data  
Sound pressure level*  
Sound power level#  
85.8 db(A)  
100.1 db(A)  
Generator (minimum size requirement)  
Maximum external working air pressure (must use  
7500W (7.5 kW)  
120 psi (8.3 bar)  
External Air Hookup Kit 287328 ONLY)  
*Measured while spraying at 1 m.  
#Measured per ISO-3744  
34  
310645H  
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Warranty  
Warranty  
Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in  
material and workmanship on the date of sale to the original purchaser for use. With the exception of any special, extended, or limited warranty  
published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by  
Graco to be defective. This warranty applies only when the equipment is installed, operated and maintained in accordance with Graco’s written  
recommendations.  
This warranty does not cover, and Graco shall not be liable for general wear and tear, or any malfunction, damage or wear caused by faulty  
installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or substitution of  
non-Graco component parts. Nor shall Graco be liable for malfunction, damage or wear caused by the incompatibility of Graco equipment with  
structures, accessories, equipment or materials not supplied by Graco, or the improper design, manufacture, installation, operation or  
maintenance of structures, accessories, equipment or materials not supplied by Graco.  
This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Graco distributor for verification of  
the claimed defect. If the claimed defect is verified, Graco will repair or replace free of charge any defective parts. The equipment will be returned  
to the original purchaser transportation prepaid. If inspection of the equipment does not disclose any defect in material or workmanship, repairs will  
be made at a reasonable charge, which charges may include the costs of parts, labor, and transportation.  
THIS WARRANTY IS EXCLUSIVE, AND IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED  
TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE.  
Graco’s sole obligation and buyer’s sole remedy for any breach of warranty shall be as set forth above. The buyer agrees that no other remedy  
(including, but not limited to, incidental or consequential damages for lost profits, lost sales, injury to person or property, or any other incidental or  
consequential loss) shall be available. Any action for breach of warranty must be brought within two (2) years of the date of sale.  
GRACO MAKES NO WARRANTY, AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A  
PARTICULAR PURPOSE, IN CONNECTION WITH ACCESSORIES, EQUIPMENT, MATERIALS OR COMPONENTS SOLD BUT NOT  
MANUFACTURED BY GRACO. These items sold, but not manufactured by Graco (such as electric motors, switches, hose, etc.), are subject to  
the warranty, if any, of their manufacturer. Graco will provide purchaser with reasonable assistance in making any claim for breach of these  
warranties.  
In no event will Graco be liable for indirect, incidental, special or consequential damages resulting from Graco supplying equipment hereunder, or  
the furnishing, performance, or use of any products or other goods sold hereto, whether due to a breach of contract, breach of warranty, the  
negligence of Graco, or otherwise.  
POUR LES CLIENTS DE GRACO PARLANT FRANCAIS  
Les parties reconnaissent avoir convenu que la rédaction du présent document ainsi que de tous les documents, avis et procédures judiciaires  
exécutés, donnés ou intentés à la suite de ou en rapport, directement ou indirectement, avec les procédures concernées, sera en anglais.  
PARA LOS CLIENTES DE GRACO QUE HABLAN ESPAÑOL  
Las partes reconocen haber convenido que el presente documento, así como todos los documentos, notificaciones y procedimientos judiciales  
emprendidos, presentados o establecidos que tengan que ver con estas garantías directa o indirectamente, estarán redactados en inglés.  
PER I CLIENTI GRACO ITALIANI  
Le controparti riconoscono di aver richiesto che il presente documento, e tutti gli altri documenti, avvisi e informazioni di natura legale sottoscritti,  
conferiti o istituiti direttamente o indirettamente, siano redatti in lingua inglese.  
PARA CLIENTES PORTUGUESES DA GRACO  
As partes confirmam que solicitaram que o presente documento, assim como todos os demais documentos, notas e processos legais inseridos,  
atribuídos ou instituídos de acordo com o mesmo ou relacionados directa ou indirectamente com este documento, fossem redigidos em inglês.  
VOOR GRACO-KLANTEN IN NEDERLAND  
De partijen zijn zich ervan bewust dat zij hebben geëist dat het onderhavige document, evenals alle documenten, berichtgevingen en wettelijke  
procedures die worden aangegaan, overhandigd of in gang gezet hetzij als gevolg van hetzij rechtstreeks hetzij indirect in relatie tot het  
onderhavige worden opgesteld in de Engelse taal.  
ADDITIONAL WARRANTY COVERAGE  
Graco does provide extended warranty and wear warranty for products described in the “Graco Contractor Equipment Warranty Program”.  
310645H  
35  
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Warranty  
TO PLACE AN ORDER, contact your Graco distributor, or call 1-800-690-2894 to identify the nearest distributor.  
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.  
MM 310645  
Graco Headquarters: Minneapolis  
International Offices: Belgium, China, Japan, Korea  
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440-1441  
3/2004 Rev. 01/2008  
36  
310645H  
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