INSTRUCTIONS-PARTS LIST
307–615
Rev S
Supersedes R
Gas–Powered Supply Pump
GH 533 HYDRA–SPRAY
SPRAYER
3000 psi (210 bar) MAXIMUM WORKING PRESSURE
U.S. Patent Pending
Model 231–533, Series B
Sprayer only. Has Severe–Duty* Displacement Pump
Model 230–974
Includes Sprayer 231–533, Hose, Swivel, Gun,
RAC
IV, DripLess
Tip Guard and SwitchTip
*Severe–duty displacement pumps have an abrasion
and corrosion–resistant displacement rod and sleeve.
Refer to the Technical Data in manual 307–862.
TABLE OF CONTENTS
Warnings
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Terms
3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Typical Installation
4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setup
4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Flushing Guidelines
6
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation
8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance
10
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting
11
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service
12
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Model 230–974 Parts
15
. . . . . . . . . . . . . . . . . . . . . . . . . .
Model 231–533 Parts
16
. . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Data
Back Cover
. . . . . . . . . . . . . . . . . . . . . . . .
Accessories
Back Cover
. . . . . . . . . . . . . . . . . . . . . . . . . .
Warranty
Back Cover
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
COPYRIGHT 1983 GRACO INC.
This manual contains
IMPORTANT
INSTRUCTIONS and WARNINGS.
READ AND RETAIN FOR REFERENCE.
Liquids can be injected into the body by high pressure airless spray
or leaks – especially hose leaks.
Keep body clear of the nozzle. Never stop leaks with any part of the
body. Drain all pressure before removing parts.Avoid accidental trig-
gering of gun by always setting safety latch when not spraying.
Never spray without a tip guard.
In case of accidental skin injection, seek immediate
“Surgical Treatment”.
Failure to follow this warning can result in amputation or serious
injury.
FIRE AND
EXPLOSION HAZARD
SKIN INJECTION
HAZARD
READ AND UNDERSTAND ALL LABELS AND INSTRUCTION MANUALS BEFORE USE
Spray painting, flushing or cleaning equipment with flammable liq-
uids in confined areas can result in fire or explosion.
Use outdoors or in extremely well ventilated areas. Ground equip-
ment, hoses, containers and objects being sprayed.
Avoid all ignition sources such as static electricity from plastic drop
cloths, open flames such as pilot lights, hot objects such as ciga-
rettes, arcs from connecting or disconnecting power cords or turn-
ing light switches on and off.
Failure to follow this warning can result in death or serious injury.
NOTE:
This is an example of the DANGER label on your sprayer.
This label is available in other languages, free of charge.
See page 20 to order.
