V-13
TROUBLESHOOTINGMACHINE TRAVEL
1. Is the amount of travel curve within stan-
dard?
If the amount of travel curve is within standards,
then operation is normal and the variation de
-
pends on the combination of equipment.
“II. Specifications, Standards for Judging
Performance”
2. Inspect the crawler tension and inspect for
foreign matter biting in, etc..
“II. Specifications, Standards for Judging
Performance”
3. Inspect the pilot valve.
“V-11”
4. Inspect the output pressure of the HST
pump.
“II. Specifications, Standards for Judging
Performance”
5. Perform replacement test for the high pres-
sure relief valves.
“V-11”
6. HST pump fault.
“IV. Hydraulic Units, Hydraulic Pump”
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