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TROUBLE
1. Hydraulic Pump Noisy
2. Hydraulic fluid
overheated
(above 200º F [93ºC])
3. Cutter stalls
continuously
4. Cutter deck will not
pivot down.
All manuals and user guides at all-guides.com
Table 4-4 General Troubleshooting
PROBABLE CAUSE
Cavitation
Areation
Pump worn or damaged
Pressure too high
Fluid dirty or fluid level low
Hydraulic fluid incorrect
viscosity.
Continuously stalling cutter
Hydraulic fluid bypassing
internally due to worn pump,
motor, or relieve valve.
Low hydraulic pressure
Cutting height too low.
PTO speed too slow
Tractor forward speed too
fast.
Tractor on incline.
15
REMEDY
Check condition of suction strainer and return
line filter. Clean or replace as necessary.
Check for clogged or restricted inlet line to
pump.
Check for loose fittings on suction line.
Clean hydraulic tank breather cap.
Check all connections on inlet side of pump.
Pour hydraulic fluid over suspected leak. If
noise stops, the leak has been found.
Fill hydraulic tank to bottom of filler strainer.
Check condition of pump shaft seal.
Overhaul or replace.
Contact authorized Bush Hog dealer.
Clean or replace filter and strainer. Add fluid
bring up to bottom of filler strainer.
Check fluid. Should a change of hydraulic
fluid be required, flush entire system and
change filters before adding new fluid.
See Item 3
Overhaul or replace faulty component.
Contact authorized Bush Hog dealer
Increase cutting height.
Increase to implement PTO speed rating.
Use lower gear.
Move tractor to level position
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