Graco 257836 Quick Manual

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Repair Kit

Valve Plate Repair

Kit 257836

Important Safety Instructions

For detailed instructions and warnings,

see sprayer manual.

Pressure Relief Procedure

To reduce the risk of injury from injection, always follow

this procedure when instructed to relieve pressure,

stop spraying, service equipment, or install or clean

spray tip.

1. Set power/function selection switch to OFF and

unplug sprayer.

2. Turn pressure knob to lowest setting.

3. Hold gun to side of grounded metal pail. Trigger the

gun to relieve pressure.

4. Turn prime valve to PRIME.

If you suspect spray tip or hose is completely clogged, or

that pressure has not been fully relieved after following

these steps, VERY SLOWLY loosen tip guard retaining

nut or hose end coupling to relieve pressure gradually,

then loosen completely. Clear tip or hose obstruction.

- For use with FinishPro 290 sprayers -

ti9346a

313770A

ti13938a

Page 1 Repair Kit Valve Plate Repair Kit 257836 313770A - For use with FinishPro 290 sprayers - Important Safety Instructions For detailed instructions and warnings, see sprayer manual. Pressure Relief Procedure ti13938a To reduce the risk of injury from injection, always follow...
Page 2 Disassembly 1. Relieve Pressure (see cover) and unplug sprayer 3. Loosen cooling tube nuts (70) and remove cooling from outlet. tube (71). 2. Remove shroud and compressor: 4. Use 1/2 in. socket to loosen and remove three bolts (100) from head (74). a.
Page 3 Reassembly 1. Replace valve plate (75) with ribs facing up toward b. Install air inlet fitting. ribs on head (74). 2. Replace three bolts (100) and use 1/2 in. socket to tighten head (74). Torque all three bolts to 75 in-lb, then torque all bolts again to 210 in-lb.
Page 4 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. This manual contains English. MM 313770 Graco Headquarters: Minneapolis International Offices: Belgium, China, Japan, Korea GRACO INC.