6-11
TROUBLESHOOTING
Warning lamp Lamp name Causes and remedies
Hydraulic oil
temp. warning
lamp
The hydraulic oil temperature became too high due to
machine overworking. Stop operation, run the engine at
low idle and let the hydraulic oil cool down.
Pilot line filter
warning lamp
The hydraulic oil pilot line filter is clogged.
Stop the engine and replace the filter immediately.
Continuing to operate the machine while the lamp is
flashing could damage the line filter and hydraulic
equipment.
Refer to “Replacing the pilot line filter” on page 5-27.
Cold climate operation: Hydraulic oil is not warmed up.
Refer to “Warming up the machine (hydraulic oil)” on
pages 3-10 to 3-11.
IF A WARNING LAMP FLASHES