TM 5-3805-263-14&P-3
(34) Front Axle Lower Bearings
This inspection is to be performed at first 2000 service
If the pin to bearing clearance is less than 2.3 mm (.090
hours and every 500 service hours after initial inspection.
inch), the bearing does not require replacing. Install new
plugs.
Machine must be level, implements lowered to ground,
parking brake applied, front wheels vertical (not leaned
If the front axle lower bearings require replacement,
to right or left), engine stopped, disconnect switch OFF
inspect the remaining front axle bearings.
and key removed.
Also, measure pin to bearing clearance of the front axle
oscillation bearing, articulation cylinders, blade lift
cylinders and wheel lean cylinder.
CAUTION
Clearance must be less than 2.3 mm
(.090 inch).
If pin to bearing
clearance is greater, replace bearings
where necessary.
Refer to PART
THREE, "Vehicle Systems", for
service Instructions.
1. Remove two plugs or bolts, 1 on each side of
machine, from bottom of arm assembly.
3. Measure the clearance by inserting a feeler gauge
between the axle lean arm and spindle housing at top.
With a new thrust pack and correct counterbore
dimension, the clearance should be .44 .14 mm (.0175
.0055 inch). Check spindle oil level.
2. Measure the clearance by inserting a feeler gauge
Minimum clearance is .13 mm (.005 inch).
between pin (A) and bearing (B) of both arm assemblies.
Clearance must be less than 2.3 mm (.090 inch).
CAUTION
If axle lean arm to spindle housing
clearance is less than .13 mm (.005
inch), refer to PART THREE, "Vehicle
Systems", for service instructions.
5-47
