Table 4-2 UNIT TROUBLESHOOTING - Continued
TEST OR INSPECTION
ROOF OR BUMPER TURRET LEAKING WATER
Check for worn or missing seal ring in turret base, worn seals or O-rings within turret.
Repair turret, (see para. 4-18).
ROOF OR BUMPER TURRET DISCHARGE PATTERN UNEVEN
Check for damaged or dirty nozzle.
Repair or replace nozzle, (see para. 4-18).
Pattern control cable out of adjustment.
Adjust cable as required, (see para. 4-18).
TANK REAR FILL VALVE WILL NOT OPERATE
Check water tank to make sure it is less than 3/4 full.
Empty tank to 3/4 mark. Select valve to ON and check if valve opens.
Check power to solenoid from pump body level monitor.
Check power at level monitor and solenoid.
Replace failed components or wire.
Check air to solenoid and air out of solenoid.
Replace solenoid if it has failed.
If no air to solenoid, check secondary air. It must be at 65 psi (450 kPa) or above.
Check tank valve diaphragm Replace if leaking.
Check hoses for leaks.
HOSE WILL NOT PLAY OUT
Foreign object jammed between cover and reel.
Hose reel bearing seized.
Replace hose reel bearing.