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OPERATION
PHDHF / PHDHC 03/20
Operation Section 4-21
© 2020 Alamo Group Inc.
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10. TROUBLESHOOTING GUIDE
TROUBLE
POSSIBLE CAUSE
POSSIBLE REMEDY
Gearbox Leaking
Damage oil seal.
Replace seal.
No oil seal.
Install oil seal.
Oil too light.
Use EP 140.
Oil seal race rough.
Replace shaft or replace race.
Oil Seal installed wrong.
Replace seal.
Oil seal not sealing in
Replace seal or use a sealant
the housing.
on O.D. of seal.
Bearing loose.
Adjust bearings.
Oil level too high.
Drain oil to proper level.
Gasket damaged.
Replace gasket.
Bolts loose.
Tighten bolts.
Trouble Digging Hole
Dull or broken auger teeth.
Replace damaged and missing
teeth.
Auger speed too fast.
For drilling rock, slow speed down
as much as possible.
Auger not digging vertical.
Level digger frame.
Slow Speed or Insufficient
Low oil pressure or
Check pressure relief valve setting
Digging Power
restricted oil flow
and hydraulic pump output by
installing a combination flow and
pressure gauge in hydraulic line
supplying the drive motor. Gauge
must be installed beyond all valves
and quick disconnects to get a true
reading at the drive unit. The
hydraulic system flow (GPM) should
remain constant and not drop off
until the stall pressure (PSI) is
reached. If pressure readings are
not up to the power unit
manufacturer’s specifications, check
for faulty relief valve and adjust or
replace as required. A worn,
damaged, or insufficient pump will
also cause low oil pressure and
restricted oil flow.
Summary of Contents for PHDF20-2
Page 4: ...STORAGE 5 3 HYDRAULIC LINES COUPLERS ADAPTERS 5 4 PROPER TORQUE FOR FASTENERS 5 4 ...
Page 5: ...Safety Section 1 1 SAFETY SECTION ...
Page 20: ...SAFETY PHDHF PHDHC 03 20 Safety Section 1 16 2020 Alamo Group Inc SAFETY Decal Description ...
Page 21: ...SAFETY PHDHF PHDHC 03 20 Safety Section 1 17 2020 Alamo Group Inc SAFETY ...
Page 23: ...Introduction Section 2 1 2020 Alamo Group Inc INTRODUCTION SECTION ...
Page 30: ......
Page 31: ...Assembly Section 3 1 ASSEMBLY SECTION ...
Page 35: ...Operation Section 4 1 OPERATION SECTION ...
Page 57: ...Maintenance Section 5 1 MAINTENANCE SECTION ...
Page 61: ...MAINTENANCE PHDHF PHDHC 03 20 Maintenance Section 5 5 2020 Alamo Group Inc MAINTENANCE ...
Page 62: ......