Troubleshooting
Hydraulic Problems
4
4-7
HDSdoc021716
Troubleshooting
PROBLEM
CAUSE
SOLUTION
Low fluid level
Check fluid level. Add an all-season hydraulic
fluid such as Amoco Rycon Oil MV or Mobil
Multipurpose ATF (automatic transmission
fluid) until level is 4 - 4 1/2" from bottom of
reservoir with all cylinders retracted
Pressure relief valve moved from
proper setting
Adjust pressure relief valve.
Low air temperature causing oil to
thicken
Allow fluid to warm up. Synthetic fluids are
available that allow for hydraulic operation in
cold weather conditions (Exxon/Esso Univis
J26).
Pump Motor Runs
Continuously When Power
Contact Is Made
Solenoid is stuck closed
Tapping the solenoid may solve this problem
temporarily. Replace solenoid.
Fluid Leaks From Around
Cylinder Piston Ram
Worn seals
Replace seals in cylinder. Check piston ram for
abrasive weld that may be causing premature
seal failure
Fluid Leak Around Pump Box
Loose seal or fitting
Wipe pump off completely to locate cause of
lead. You may have to unbolt the pump to wipe
behind it.
NOTE
: Movement of the sawmill can
cause fluid to slosh up into the foam filter in the
reservoir cap, and subsequently spray out,
giving the appearance that fluid is leaking from
the pump
Содержание LT70M AH Super
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