Troubleshooting Guide
Hydraulic Problems
Troubleshooting Guide 60HDdoc102619 6-12
6
PROBLEM CAUSE SOLUTION
Pump Motor Runs With
Little Or No Response
From The Cylinders
Low battery Test battery. Recharge or replace as necessary.
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
fluid to thicken
Allow fluid to warm up. Synthetic fluids are available
that allow for hydraulic operation in cold weather
conditions (Mobil SHC 526).
Pump Motor Runs Con-
tinuously When Power
Contact Is Made
Solenoid is stuck closed Tapping the solenoid may solve this problem tempo-
rarily. 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.
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