
918496/GP0313 157
Seal and Hose Troubleshooting
Problem Possible Cause Corrective Action
Oil, coolant or fuel leakage Loose hose connection(s) Tighten hose
connections
Damaged seals or hoses Change seals/hoses as
necessary
Hydraulic fluid leakage Loose fittings Tighten hydraulic
connections
Seals, hoses or lines
damaged
Change seals, hoses or
lines as necessary
Hydraulic System Troubleshooting
Problem Possible Cause Corrective Action
Hydraulics do not work or
work only at a low
performance level
Low hydraulic fluid level Add hydraulic fluid
Hydraulic fluid is not warm Allow longer warm-up
Engine to pump coupling or
hydraulic pump damaged
Contact dealer
Pressure limiting valves set
too low or damaged
Contact dealer
Hydraulic cylinder damaged Contact dealer
Control valves damaged Contact dealer
Engine speed is too low Adjust engine speed—
see “Accelerator pedal”
on page 53 and “Hand
Throttle” on page 61
Dirty/restricted air filter(s) Replace filter(s)
Incorrect fuel grade Change the fuel—see
“Fluid
Capacities/Lubricants”
on page 31 for proper
fuel grade
Travel drive system does
not work or works only at a
low performance level
AL 100 Series hydraulic
tanks not evenly filled
See “Checking Hydraulic
Oil Level” on page 122.
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