PH-20/PHX-20 Manual
32
TROUBLESHOOTING
Hydraulic Drive System (cont’d)
PROBLEM
Low or zero hydraulic pressure with unusual Hydraulic Pump noises
SOLUTIONS
1.The use of an incorrect hydraulic fluid can result is unusual noises from the
pump, excessive wear and moisture absorption. Ensure the hydraulic oil used
is from the list on page 47. In addition to the above, continuous excessive
hydraulic oil temperature as well as failure to change the hydraulic oil on a
yearly basis will cause the oil to fail and result in excessive Hydraulic Pump
wear and unusual noises.
2. Loose Inlet Plumbing: Check that all inlet plumbing to Hydraulic Pump is tight
ensuring no air leakage into the hydraulic system.
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