V-5
TROUBLESHOOTINGOVERALL MACHINE
1. Inspect the hydraulic oil level.
“III. Machine Configuration, Hydraulic
Tank”
Always be sure to use the same brand as that
currently being used when adding hydraulic oil.
“Specifications, Fluid Capacities”
2. Inspect the hydraulic pump.
• Inspect the delivery pressure of pumps P1
and P2 (HST pumps).
“II. Specifications, Standards for Judging
Performance”
• Check pumps P3 and P4 (gear pumps).
a. Remove the delivery hoses (2) from the
pump.
b. Crank the engine.
• If everything is working properly, hydrau
-
lic oil will be ejected from the pump out
-
let.
Note that a failure in the pump coupling mecha
-
nism causes the operation of all pumps to fail.
3. Inspect hydraulic pump P4.
See the item above for instructions on checking
this pump.
4. Inspect the fuse.
Check the fuse for the electrical circuit which
operate the lever lock solenoid.
T7E001
30
30
2
0
10
10
20
30
20
20
20
10
30
20
10
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