Manitowoc Published 05-03-17, Control # 228-03 10-i
SECTION 10
TROUBLESHOOTING
TABLE OF CONTENTS
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1
Safety Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1
Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1
Troubleshooting Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-2
PROBLEM 1 Engine will not rotate when trying to start. . . . . . . . . . . . . . . . . . . . 10-2
PROBLEM 2 The engine rotates, but will not start. . . . . . . . . . . . . . . . . . . . . . . . 10-3
PROBLEM 3 Engine runs, but there is no hydraulic operation. . . . . . . . . . . . . . . 10-4
PROBLEM 4 The engine runs, but the battery is not charging. . . . . . . . . . . . . . . 10-5
PROBLEM 5 Engine faults. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-6
PROBLEM 6 The crawler travels only at a slow speed.. . . . . . . . . . . . . . . . . . . . 10-7
PROBLEM 7 The crawler track(s) will not travel in either direction.. . . . . . . . . . . 10-8
PROBLEM 8 A load drum does not operate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-9
PROBLEM 9 The load drum will not raise the load, but will lower the load.. . . . 10-10
PROBLEM 10 The load drum will not lower the load, but will raise the load.. . . 10-11
PROBLEM 11 The load drum will not reach the maximum speed. . . . . . . . . . . 10-12
PROBLEM 12 No boom/mast hoist operation.. . . . . . . . . . . . . . . . . . . . . . . . . . 10-13
PROBLEM 13 The boom/mast hoist will not reach the maximum speed. . . . . . 10-14
PROBLEM 14 The boom will not boom up, but will boom down.. . . . . . . . . . . . 10-15
PROBLEM 15 The boom will not boom down, but will boom up.. . . . . . . . . . . . 10-16
PROBLEM 16 No swing operation, but the engine loads. . . . . . . . . . . . . . . . . . 10-17
PROBLEM 17 No swing operation, the engine does not load.. . . . . . . . . . . . . . 10-18
PROBLEM 18 Travel system response is sluggish.. . . . . . . . . . . . . . . . . . . . . . 10-19
PROBLEM 19 The closed-loop hydraulic system response is sluggish. . . . . . . 10-20
PROBLEM 20 The hydraulic system is operating hot. . . . . . . . . . . . . . . . . . . . . 10-21
PROBLEM 21 The system pump will not return to neutral. . . . . . . . . . . . . . . . . 10-22
PROBLEM 22 The drum pawl is not operating correctly.. . . . . . . . . . . . . . . . . . 10-23
PROBLEM 23 The mast cylinders will not raise or lower. . . . . . . . . . . . . . . . . . 10-24
PROBLEM 24 The accessory pin cylinder(s) will not extend or retract.. . . . . . . 10-25
PROBLEM 25 The crawler pin cylinder(s) will not extend or retract. . . . . . . . . . 10-26
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