Hydraulic schematic, 15 hydraulic troubleshooting – Windsor TRACER FS QTFSD User Manual
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HYDRAULIC SCHEMATIC
QTFSG/QTFSD 98349 05/15/03
4-15
HYDRAULIC TROUBLESHOOTING
PROBLEM
CAUSE
SOLUTION
Hopper will not lift
Loss of power to rocker
switch
Key switch must be on check circuit breaker
Low hydraulic fluid
Add hydraulic fluid
Hopper overloaded
Empty hopper
Rocker switch failure
Test – replace switch
Speed control orifice
plugged
Clean or replace orifice (located behind the lower
cylinder fitting)
Pump solenoid failure
Replace pump solenoid
Check valve failure
Replace check valve or solenoid
Lift cylinder failure
Replace cylinder seals
Gear pump failure
Replace pump or pump motor
Hopper will not lower
Loss of power to rocker
switch
Key switch must be on, check circuit breaker
Rocker switch failure
Test – replace switch
Speed control orifice
plugged
Clean or replace orifice (located behind the lower
cylinder fitting)
Check valve failure
Replace check valve or solenoid