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TROUBLESHOOTING
6.5
Traction Drive Troubleshooting
Symptom
Problem
Solution
Section
Low hydraulic oil level
Stop engine, and add oil to hydraulic
system.
Checking and
Filling Hydraulic
Oil, page 401
Low hydraulic pressure
Foreign material shorting
sender
Short in alarm wiring
Warning alarm
sounds and
transmission oil
light is on
Faulty sender
Internal pump or motor
damage
Contact Dealer.
Contact Dealer
Insuf
fi
cient torque at drive
wheels
Move ground speed range control
to
fi
eld position, and reduce ground
speed.
Driving Forward
in Engine-Forward
Mode, page 170
Loose or worn controls
Check controls.
5.5.3 Ground
Speed
Lever (GSL)
Adjustments, page
317
Use proper oil.
8.2.3 Lubricants,
Fluids, and System
Capacities, page
466
Check oil level and leaks.
Checking and
Filling Hydraulic
Oil, page 401
Air in system
Check hydraulic oil
fi
lters.
5.5.9 Hydraulic
System, page 400
Brakes binding or not
releasing fully
Check pressure on brake release
valve (min. 200 psi [1379 kPa]).
Wheels lack pulling
ability on a grade
or pulling out of a
ditch
Relief valve in tandem pump
dirty or damaged
Replace relief valve.
Leakage at pump or motor
Wheels not in same speed
range
Contact Dealer.
With steering
wheel centered,
one wheel pulls
more than the
other
Faulty relief valve
Repair or replace valve. Contact
Dealer.
Contact Dealer
147649
438
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 ...
Page 44: ......
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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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