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TROUBLESHOOTING
Symptom
Problem
Solution
Section
Broken pump arm or shaft
Contact Dealer.
Contact Dealer
One
fi
nal drive disengaged
Engage
fi
nal drive.
Final Drives, page
191
Steering controls worn or
defective
Check GSL and steering for loose,
worn or damaged ball joints and
connecting rods.
5.5.3 Ground
Speed
Lever (GSL)
Adjustments,
page 317
and
5.5.4 Steering
Adjustments, page
319
High pressure relief valve
stuck open, damaged seat
Check valve, and clean or replace.
Contact Dealer
Brakes binding or not
releasing fully
Check pressure on brake release
valve (min. 200 psi [1379 kPa]).
Damaged hydraulic lines
preventing proper oil
fl
ow
Ground speed range control
not working
One wheel does
not pull in forward
or reverse
Failed pump, motor or power
hub
Contact Dealer.
Contact Dealer
Mechanical interference in
steering or ground speed
linkage
Adjust, repair, and replace.
5.5.3 Ground
Speed
Lever (GSL)
Adjustments,
page 317
and
5.5.4 Steering
Adjustments, page
319
Brakes binding or not
releasing fully
Check pressure on brake release
valve (min. 200 psi [1379 kPa]).
Faulty pump or motor
Contact Dealer.
Contact Dealer
Air in system
Check lines for leakage.
Excessive noise
from drive system
Hydraulic line clamps loose
Tighten clamps.
—
Not properly tightened
Tighten
fi
lter element.
Hydraulic oil
fi
lter
leaks at seal
Damaged seal or threads
Replace
fi
lter or
fi
lter head.
147649
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Revision A
Summary of Contents for M155
Page 3: ...Declaration of Conformity Figure 1 Declaration of Conformity Page 1 of 2 147649 i Revision A ...
Page 4: ...Figure 2 Declaration of Conformity Page 2 of 2 147649 ii Revision A ...
Page 30: ...SAFETY Figure 1 21 Safety Signs Left Cab forward Side 147649 14 Revision A ...
Page 32: ...SAFETY Figure 1 23 Safety Signs Right Cab forward Side 147649 16 Revision A ...
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Page 320: ......
Page 414: ...MAINTENANCE AND SERVICING Fuse Box Decal Figure 5 178 Fuse Decal 147649 398 Revision A ...
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