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TM 10-3930-673-20-1
2-17. HYDRAULIC SYSTEM TROUBLESHOOTING
This paragraph covers hydraulic system troubleshooting. The Hydraulic System Fault Index, Table 2-8, lists faults for the
hydraulic system of the ATLAS. Refer to schematics found at the end of this volume when performing test and corrective
actions.
Table 2-8. Hydraulic System Fault Index
Fault
Page
Number
Description
No.
1
Left hand fork sideshift cylinder does not operate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2
Right hand fork sideshift cylinder does not operate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3
Fork tilt cylinder does not operate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4
Attachment cylinder does not operate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5
Left and/or right hoist cylinders do not extend or retract . . . . . . . . . . . . . . . . . . . . . . . . . . .
6
Boom extend cylinder slow or does not extend or retract . . . . . . . . . . . . . . . . . . . . . . . . . .
7
Left and right rear steering cylinders do not extend or retract . . . . . . . . . . . . . . . . . . . . . . .
8
Left and right front steering cylinders do not extend or retract . . . . . . . . . . . . . . . . . . . . . .
9
Frame tilt cylinder does not extend or retract. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10
Brake actuators (left and/or right rear and left and/or right front) do not
operate correctly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11
Emergency steering pump does not operate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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