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Section 8: Troubleshooting
7/31/17
HD25 and HD35 Hydraulic Post Hole Diggers 317-076M
Auger does not rotate
Auger bolt is broken at the gearbox output shaft
Replace auger bolt.
Roll pins are broken at the gearbox input shaft
Replace roll pins.
Auger turns in reverse
direction
Tractor Mount: Hydraulic hoses are reversed at the
tractor duplex outlet.
Skid Steer Mount: Quick release couplers are
reversed on the hydraulic hoses.
Tractor Mount: Switch hydraulic hoses at the
tractor duplex outlet.
Skid Steer Mount: Switch quick release couplers
on the hydraulic hoses.
Auger speed is slow
Low hydraulic flow through the system.
Check with flow meter. If low, investigate and
correct.
Flow in hydraulic line is restricted due to dirt
particles in fittings and twisted hydraulic hoses.
Remove dirt particles in fittings and untwist
hydraulic hoses that may be pinched or kinked.
Defective or mismatched couplers.
Replace with proper couplers.
Fittings and/or connections are too small.
Replace with proper size fittings and/or
connections.
Dirty oil filter.
Replace oil filter.
Worn or damaged hydraulic pump.
See dealer for repair.
Excessive wear of auger teeth or point.
Replace auger teeth and/or point.
Troubleshooting Chart
Problem
Cause
Solution