Service
Pressure Relief Procedure
WARNING
PRESSURIZED EQUIPMENT HAZARD The system pressure must be manually relieved to prevent the system from
starting or spraying accidentally. To reduce the risk of an injury from accidental spray from the gun, splashing fluid, or moving parts, follow the Pressure Relief Procedure whenever you:
Dare instructed to relieve the pressure, D stop spraying,
D check or service any of the system equipment, D or install or clean the spray nozzle.
1.Engage gun safety latch.
2.Turn ON/OFF switch to OFF.
3.Unplug power cord.
4.Disengage gun safety latch. Hold metal part of gun against grounded metal pail and trigger gun into pail to relieve pressure.
5.Engage gun safety latch.
6.Open any fluid drain valves in system. Leave drain valve open until ready to dispense again.
Pump Repair Kits
Pump | Repair Kit |
|
|
248204, 255968 | 248212 |
|
|
253056 | 287825 |
|
|
248205, 249057, 249059, | 248213 |
257146 |
|
|
|
Tools Needed
Vise
12 in. adjustable, open end wrench (2) Hammer, 20 oz maximum
Small screwdriver Throat Seal Liquid
Pick or long small screwdriver
Cleaning and Inspecting Parts
1.Clean and inspect parts. Pay particular attention to the ball seats in the intake valve and piston, which must have no nicks or wear, and to the inside of the sleeve and the outside of the piston rod, which must not be worn or scratched. Replace worn or damaged parts.
WARNING
COMPONENT RUPTURE HAZARD Never use sharp or pointed tools to
remove sleeve or other components which could result in pump rupture and
cause serious bodily injury. If the sleeve cannot be removed easily, return the sleeve and cylinder to your Graco distributor for removal.
2.Remove and clean the sleeve when you are repacking the pump.
310643 3
