New Holland WorkMaster 50 Service Manual page 258

Final drive driving pinion - Preload – (4WD) Front Axle
WARNING
Avoid injury!
Handle all parts carefully. Do not place your hands or fingers between parts. Use Personal Protec-
tive Equipment (PPE) as indicated in this manual, including protective goggles, gloves, and safety
footwear.
Failure to comply could result in death or serious injury.
Adjustment of the preload of the pinion shaft bearings
Proceed as follows:
1. Clamp tool number 380000248 (1) in the vice. Install
bearings (2), (3) and the bearing spacer (4) and tighten
the nut of the tool fully home.
NOTE: Install the 10 mm (0.394 in) thick spacer between
tool number 380000248 (1) and the bearing (2).
2. Using a micrometer, measure distance (H1) be-
tween the upper surface and the pin of tool number
380000248 (1).
3. Disassemble the above parts, lubricate the bearings
with oil and then re-assemble the parts, excluding the
bearing spacer, in the bevel drive-differential housing,
complete with outer bearing races, held in place with
tool number 380000255.
4. Tighten the nut of tool number 380000255 (1), while
turning the tool to ensure that the bearings are seated
correctly.
5. Using a micrometer, measure the distance (H2) be-
tween the upper surface and the pin of the tool.
6. The thickness of the adjustment shim required is given
by:
Shim = H2 - H1 + 0.05 mm (0.002 in)
Front axle system - Final drives
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W0208A
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GNIL14TR04419AB
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GNIL14TR04420AB
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GNIL14TR04421AB