28
7. TROUBLESHOOTING DIAGNOSIS
Table 12. Troubleshooting
SYMPTOM POSSIBLE
CAUSE
REMEDY
Couplers are not engaged
Connect couplers securely
Relief valve set incorrectly
Adjust main and secondary relief
valve
Malfunction of the hydraulic pump
Repair pump
Nitrogen gas pressure is too high
Adjust gas pressure
Main valve is damaged
Replace main valve
Hammer
does not run
Piston is damaged
Repair or replace piston
Couplers are not fully engaged
Connect couplers securely
Relief valve set incorrectly
Adjust main and secondary relief
valve
Malfunction of the hydraulic pump
Repair pump
Oil temperature is too high
(exceeds 180
°
F or 80
°
C)
Check oil cooler
Main valve is damaged
Replace damaged main valve
Decreased oil flow
Avoid simultaneous axis movement
Auto shut-off in operation, tool is
suspended
Apply proper down force
Excessive bushing wear
Replace worn bushings
Hesitation or
erratic
operation
Piston is damaged
Repair or replace piston
Nitrogen pressure is too high
Adjust gas pressure
Hydraulic oil leakage into the gas
chamber
Replace seal kit
Malfunction of the hydraulic pump
Repair pump
Slow impact
speed
Deteriorated or contaminated oil
Change oil
Nitrogen gas pressure is low
Adjust gas pressure
Relief valve set incorrectly
Adjust main and secondary relief
valve
Low impact
power
Malfunction of the hydraulic pump
Repair pump
Summary of Contents for HH100
Page 1: ...HUSKIE HYDRAULIC HAMMERS SERVICE MANUAL HH100 HH150 2 HH300 2 HH500 2 HH750 2 HH1000 2 ...
Page 2: ...2 ...
Page 33: ...33 9 PARTS LIST AND ILLUSTRATIONS HH100 HH150 2 HH300 2 HH500 2 HH750 2 HH1000 2 ...
Page 35: ...35 HH100 HAMMER Effective 07 09 ...
Page 37: ...37 ...
Page 39: ...39 HH150 2 HAMMER S N 001 099 2B2 1000 UP Effective 07 09 ...
Page 41: ...41 ...
Page 43: ...43 HH300 2 HAMMER S N 001 099 2E2 1000 UP Effective 07 09 ...
Page 47: ......
Page 49: ...49 HH500 2 HAMMER S N 001 099 2R2 1000 UP Effective 07 09 ...
Page 55: ...55 HH750 2 HAMMER S N 001 099 2F2 1000 UP Effective 07 09 ...
Page 59: ...59 ...
Page 61: ...61 Effective 07 09 HH1000 2 HAMMER S N 001 099 2H2 1000 UP ...