Graco Inc 3500WB, 308584 Tools Included with the Gun, Prepare the Gun for Service, Removal

Service

Tools Included with the Gun

DMulti-tool

DBall-end Wrench

D2 mm Hex Key Allen Wrench

Prepare the Gun for Service

NOTE:

DCheck all the possible remedies in Troubleshoot- ing before disassembling the gun.

DIf the plastic parts of the gun must be held in a vise, use padded vise jaws to avoid damaging parts.

DLightly lubricate o-rings and seals with petroleum jelly. Do not over-lubricate.

DOnly use genuine Graco parts. Do not mix or use parts from other PRO Gun models.

WARNING

FIRE, EXPLOSION, AND ELECTRIC

SHOCK HAZARD

To reduce the risk of a fire, explosion, or electric shock:

DFollow the Fluid Voltage Discharge and Grounding Procedure on page 16 and be sure the ES ON-OFF lever is turned to OFF before flushing, checking, or servicing the system and whenever you are instructed to dis- charge the voltage.

DClean all the parts with a non-flammable fluid as defined on the front cover of this manual.

DDo not service this equipment unless you are trained and qualified.

DDo not touch the gun nozzle or come within 4 inches (101.6 mm) of the nozzle during gun op- eration or until after following the Fluid Voltage Discharge and Grounding Procedure.

WARNING

PRESSURIZED EQUIPMENT HAZARD

To reduce the risk of an injury, follow the Pressure Relief Procedure on page 16 before checking or servicing any part of the system and whenever you are instructed to relieve the pressure.

1.Discharge the voltage as instructed on page 16.

2.Flush the gun with a non-flammable cleaning fluid as instructed on page 21.

3.Purge the fluid out of the lines with air

4.Relieve the system pressure as instructed on page 16.

5.Disconnect the air and fluid hoses from the gun, and remove the gun from the worksite for service. The service area must be clean.

Air Cap/Nozzle/Resistor Stud

Replacement

Removal

1.Prepare the gun for service as instructed at left.

2.Remove the air cap assembly (1, 2, 8). See Fig. 16, page 31.

CAUTION

Hold the front end of the gun up, and trigger the gun while removing the nozzle and resistor stud to help drain the gun and prevent any fluid left in the gun from entering the air passages.

3.Point the front end of the gun up and squeeze the trigger while removing the fluid nozzle/resistor stud (21, 22) assembly with the nozzle wrench (70).

NOTE: If the resistor stud (22) remains in the gun when the fluid nozzle is removed, start the nozzle thread onto the stud and pull the stud out.

Continued on the next page.

30 308584