Installation Guide

ManualsBrandsGraco ManualsPaintProX21 Stand Airless Paint Sprayer

3A3172B

Kit Instructions

ProXChange

™

Repair Kit

Pressure Relief Procedure

1. Turn ON/OFF switch to OFF position.

2. Unplug sprayer.

3. Engage trigger lock. Always engage the trigger lock

when sprayer is stopped to prevent the gun from

being triggered accidentally.

4. Turn pressure control knob to lowest setting.

5. Put drain tube into a waste pail. Turn prime/spray

knob down or flip prime/spray lever away from

sprayer to the PRIME position to relieve pressure.

6. Hold the gun firmly to a pail. Point gun into pail. Dis-

engage the trigger lock and trigger the gun to

relieve pressure.

7. Engage the trigger lock.

Disassembly

Always perform Pressure Relief Procedure before

starting any pump repairs.

1. On sprayers with a hopper the hopper must be

removed before pump can be removed. Remove

airless hose, if necessary remove suction tube.

2. Pull tabs on sides of the easy access door towards

you.

3. Slide door away from the inlet end of the pump.

4. Now lift the easy access door so that it swivels out

of the way.

5. Insert hex end of pump into hex tool in the sprayer

frame and turn counter-clockwise to loosen assem-

bly. Location of the hex varies depending on the

sprayer.

6. Slide pump assembly off the mounting pins.

7. Remove entire packing assembly from pump hous-

ing including the packing spring.

IMPORTANT SAFETY INSTRUCTIONS

For detailed sprayer information and warnings, see

the Owners Manual included with your sprayer.

SKIN INJECTION HAZARD: This equipment stays

pressurized until pressure is manually relieved. To help

prevent serious injury from pressurized fluid, such as

skin injection, splashed fluid and moving parts, follow

the Pressure Relief Procedure whenever sprayer is

stopped and before sprayer is cleaned or checked, and

before equipment is serviced.

ti27463a

ti26931a

WARNING

Summary of content (2 pages)

PAGE 1
Kit Instructions 3A3172B ProXChange Repair Kit ™ IMPORTANT SAFETY INSTRUCTIONS For detailed sprayer information and warnings, see the Owners Manual included with your sprayer. EN 2 Pressure Relief Procedure WARNING SKIN INJECTION HAZARD: This equipment stays pressurized until pressure is manually relieved.
PAGE 2
Assembly 5. Swing easy access door closed while pushing the entire door towards the inlet end of the pump. 1. On the new pump remove protective cap from the end of the piston rod. 1 NOTICE Be careful not to lose the packing spring that is installed on the pump rod. Operation without the packing spring will cause early pump failure. 2 3 ti26947a ti27478a 2. While holding the pump body upside down start threading the new packing assembly in by hand. 6.