Troubleshooting
18
3A4108F
Engine operates, but
displacement pump does
not operate.
Pump switch is OFF.
Turn pump switch ON.
Pressure setting too low.
Turn pressure adjusting knob
clockwise to increase pressure.
Fluid filter is dirty.
Clean filter.
Tip or tip filter is clogged.
Clean tip or tip filter (see gun
manual).
Displacement pump piston rod is
stuck due to dried paint.
Repair pump (see pump manual).
Connecting rod is worn or damaged. See Parts.
Drive housing is worn or damaged.
See Parts.
Electrical power is not energizing
clutch field.
See Parts.
With pump switch ON and pressure
turned to MAXIMUM, use a test
light to check for power between
clutch test points on control board.
Remove clutch wires from control
board and measure resistance
across clutch coil. At 70° F, the
resistance must be between 1.2 +
0.2 W; if not, replace pinion
housing.
Have pressure control checked by
authorized dealer.
Clutch is worn, damaged, or
incorrectly positioned.
Adjust or replace clutch. See page
25.
Pinion assembly is worn or
damaged.
Repair or replace pinion assembly.
Page 25.
PROBLEM
CAUSE
SOLUTION
Содержание GS950
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