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GROUP 2 TROUBLESHOOTING
Problem
1. Noise
1) Loud, beating noise
2) Loud, steady noise
3) Dull, grinding noise
2. Leakage
1) Breather
2) Housing cover
3) Oil filler or oil drain plug
4) Input shaft / wheel shaft
5) Side cover
6) Sealing disc on drive pinion
3
3
. Other fault possibilities
1) Only sluggish rotation of
the pivoted bogie bearing
is possible or bearing
clearance is sensible
Cause
Gearing of helical gear stage damag-
ed, indentations.
Fault on grooved ball bearing input.
Contaminations.
Motor/transmission connection not ok.
Motor bearing defective.
Wrong bearing preload or incorrect
backlash.
Excessive oil level.
Screws not tightened with the
specified tightening torque.
O-Ring sealing defective.
Screws not tightened with the
specified tightening torque.
Dirt between sealing ring and housing.
Sealing ring worn.
Radial sealing ring damaged or worn.
Damaged race on input- and/or wheel
shaft.
Screws not tightened according to
sequence of tightening and the
tightening torque.
No uniform adhesive application of
LOCTITE 5910.
Joining time not observed.
No uniform adhesive application of
LOCTITE 5910.
Joining time not observed.
Cover disc has loosened and dirt got
into the bearing.
Cage segments are damaged.
Plastic deformation of the balls or the
ball race.
3-3
Remedy
-
Check tooth flanks of the drive pinion
and the helical gear for damage. In
case of damage always replace both
components.
-
Remove and replace drive pinion
bearing.
-
Remove and replace drive pinion
bearing.
-
Check motor installation.
-
Check motor bearing.
-
Check bearing preload and backlash
and readjust it, if necessary.
-
Check oil level.
-
Tighten screws with the specified
tightening torque.
-
Replace O-Ring.
-
Tighten screws with the specified
tightening torque.
-
Clean.
-
Install new sealing ring.
-
Install new radial sealing ring.
-
Replace input shaft and wheel shaft
respectively.
-
Tighten screws according to correct
sequence of tightening and with the
tightening torque specified.
-
Apply LOCTITE 5910 evenly and
continuously.
-
Observe LOCTITE specification and
replace the sealing.
-
Apply LOCTITE 5910 evenly and
continuously.
-
Observe LOCTITE specification and
replace the sealing.
-
Replace pivoted bogie bearing.
-
Replace pivoted bogie bearing.
-
Replace pivoted bogie bearing.
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