Troubleshooting
50940411/G0219 168 Printed in U.S.A.
Hydraulic System Troubleshooting
Table 50: Hydraulic System Troubleshooting
Problem Possible Cause Corrective Action
Hydraulics do not work or have poor
performance
Error code present? See “Error Codes” on page 172
Low hydraulic oil level
Top-off hydraulic oil. See “Checking
Hydraulic Oil Level” on page 138
Hydraulic oil is not at operating
temperature
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(s) damaged Contact dealer
Control valve(s) damaged Contact dealer
Engine speed too low
Adjust engine speed. See “Throttle
Controls” on page 63
Dirty/restricted air filter(s) Replace filter(s) and/or remove restriction
Incorrect fuel type/grade
Replace fuel with proper type/grade. See
“Fluids/Lubricants Types and Capacities”
on page 35
Attachment tilts forward with control in
neutral
Hydraulic oil leaking past cylinder seals
(internal and/or external)
Contact dealer
Leaking hydraulic system components,
such as hoses, tubes, fittings, valves, etc.
Leak past spool in control valve
Repair as necessary
Joystick/electrical malfunction See “Error Codes” on page 172
Lift arm does not raise/lower
Parking brake applied
Disengage parking brake. See
“Disengage Parking Brake” on page 74
Lift spool in control valve not actuated or
leaking
Contact dealer
Joystick/electrical malfunction code
displayed
See “Error Codes” on page 172
Attachment tilt not working, but lift arm work
properly
Tilt spool in control valve not actuated or
leaking
Contact dealer
Joystick/electrical malfunction code
displayed
See “Error Codes” on page 172
Lift arm does not raise but attachment tilt
works properly
Lift spool in control valve not actuated or
leaking
Contact dealer
Joystick/electrical malfunction code
displayed
See “Error Codes” on page 172
Hydraulic system overheating
Dirty hydraulic oil cooler Clean hydraulic oil cooler
Low hydraulic oil level
Top-off hydraulic oil. See “Checking
Hydraulic Oil Level” on page 138
Load too high Reduce load