52
General Troubleshooting
HYDRAULIC SYSTEM
MALFUNCTION
PROBABLE CAUSE
CORRECTIVE ACTION
Tub will not dump.
Hoses not connected to power unit
Clean hydraulic coupler and connect to
truck box.
Power unit malfunction
Check power unit pressure and flow rate.
Ruptured line or loose fitting
Check for hydraulic leaks - replace
hydraulic hose and/or fitting.
Hydraulic cylinder
Replace cylinder packing.
Proportional valve
Check pressure at both cylinders for equal
pressure.
Double relief valve
Adjust high-pressure relief cartridge.
Tub dumping slowly. Dirt in relief valve
Disassemble valve. Clean with diesel fuel
or kerosene, or replace cartridge.
Chattering noise in relief valve
Dirty valve or pressure set too low and by-
passing. Check pressure setting.
Power unit hydraulic system
Check pressure and flow rate on power
unit.
MALFUNCTION
PROBABLE CAUSE
CORRECTIVE ACTION
All lights fail to light. Inter-vehicular cable not properly
plugged into receptacles on truck box
and tractor
Pull plugs out and reinsert them. Be sure
plugs seat properly.
Light switch on tractor is malfunction-
ing
Check light switch.
No current from tractor
Check circuit breaker and wiring on tractor.
Short circuit in wiring
Check wiring for bare spots in insulation.
Dirty or corroded contacts in recepta-
cle or on plug of inter-vehicular cable
Clean receptacle and plug.
Dirty or corroded contacts in connec-
tors of truck box wiring
Clean corroded contacts in connectors.
Lights burn dim or
flicker.
Loose, dirty, or corroded terminals
Clean and tighten terminals.
Poor or loose ground
Clean and tighten terminals on short
(ground) cable.
Defective lamps
Replace defective lamps.
Dirty or corroded lamp socket or
contact in receptacle, or on plug of
inter-vehicular cable
Clean or replace lamp socket, receptacle,
or plug.
Individual lamps do
not light.
Burned out lamp
Replace lamp.
Broken or loose connection
Tighten, repair, or replace broken connec-
tions. Clean poor or dirty connections.
Damaged light assembly
Repair or replace light assembly.
Dirty or corroded lamp socket
Remove lamp and clean contacts.
Dirty or corroded contact in receptacle
or on plug of inter-vehicular cable
Clean receptacle and plug.
ELECTRICAL SYSTEM
Summary of Contents for 9CCRTB14
Page 22: ...22 Pivot Latch Parts All Models Front Rear...
Page 32: ...32 Roll Rite Electric Tarp Mounting Parts Rear Front 3 7 16 13 5 4 17 9 10...
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