Graco 257100 Water Pump User Manual


 
Inline Valve
28 3A0246C
Needle Adjustment
1. Engage inline valve (135) with safety latch. Hold
inline valve with nozzle straight up.
2. Hold your finger against trigger (410) with light pres-
sure. Use a 5/16 open-ended wrench to turn locknut
(414) clockwise until you feel trigger lift slightly.
3. Turn locknut (414) 3/4 turn counter-clockwise.
4. Connect fluid hose. Prime the system. Trigger inline
valve (135) and release it. The fluid flow should stop
immediately. Engage safety latch and try to trigger
inline valve. No fluid should flow. If the inline valve
fails either test, relieve pressure, disconnect hose
and readjust needle.
5. Install trigger stop (420) when needle has been
properly adjusted.
Replacing the Battery
Removal
1. Unscrew battery cap (425a) from housing (411).
Remove battery and discard.
Installation
1. Install battery (426) in housing (411) and screw in
battery cap (425a).
NOTE: Make sure o-ring (425b) is in place when
installing the battery cap (425a).
Box Slide Control
Use Brake Assembly Repair Kit 24F261
Removal
1. Remove set screw from brake knob (518b).
2. Unthread brake knob (518b) from assembly.
Installation
1. Thread brake knob (518b) onto assembly
2. Apply label (518a).
3. Torque set screw to 15-20 in-lb.
ti15862a
425a
426
411
ti15812a
518b
518a
ti15863a
518b
ti15865a