TROUBLESHOOTING
11-6
Drive Function
Problem
Cause
Solution
One or both side tracks are inoperable. Damaged center joint
* Repair or replace
Incompletely released parking brake
* Repair or replace
Broken travel motor
* Repair or replace
Faulty pilot valve
* Replace
Faulty pilot circuit line
* Repair or replace
Faulty counter balance valve
* Replace
Does not travel smoothly.
Overly tensioned or slackened crawler sag
Adjust
Deformed track frame
* Repair or replace
Embedded foreign matter such as rock
fragments
Remove
Dragged parking brake
* Repair
Faulty counter balance valve
* Replace
Travel speed does not change.
Faulty travel speed switch.
* Replace
Poor contact in connector
* Repair or replace
Damaged wire harness
* Repair
Faulty solenoid valve
* Repair or replace
Faulty motor
* Repair or replace
* Mark: Consult your authorized Hitachi dealer.
Summary of Contents for Zaxis 33U-5A
Page 4: ......
Page 66: ...SAFETY SIGNS S 54 MEMO ...
Page 104: ...OPERATOR S STATION 1 38 Radio Cab equipped machine Optional 1 Radio Clock 1 MADB 01 005 ...
Page 114: ...BREAK IN 2 2 MEMO ...
Page 160: ...OPERATING THE MACHINE 5 28 MEMO ...
Page 270: ...MAINTENANCE 7 102 MEMO ...
Page 272: ...MAINTENANCE UNDER SPECIAL ENVIRONMENTAL CONDITIONS 9 2 MEMO ...
Page 274: ...STORAGE 10 2 MEMO ...