Service Manual

Accessory Drive ISB, ISBe and QSB (Common Rail [...]
Page 9-4 Section 9 - Drive Units - Group 09
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Measure the inside diameter of the bearing bore in the
accessory drive adapter housing.
Bearing Bore Inside Diameter (Accessory Drive
Adapter)
mm in
67.759 MIN 2.6755
67.983 MAX 2.6765
If out of specification, replace the housing.
Assemble
Use a hydraulic press and proper support to assemble the
accessory drive in the following order:
1 Press the accessory drive shaft into the bearing, while
supporting the bearing inner race, until the drive shaft
bottoms on the inner race
2 Press the outer race of the bearing, with drive shaft,
into the accessory drive housing, until the outer race
bottoms in the housing
3 Press the accessory drive gear onto the shaft while
supporting the bottom of the drive shaft. Press until
gear bottoms against inner bearing race.
Measure
Using gauge, Part Number 3824564, and magnetic base,
Part Number 3377399, check the accessory drive gear
end play.
Accessory Drive Gear End Play
mm in
0.5 MIN 0.020
If the end plays is out of specification:
1 If just assembled, check if the drive gear and bearing
were completely pressed onto the drive shaft
2 If not previously disassembled, disassemble the
accessory drive and inspect for damage. Replace as
necessary
3 Replace the accessory drive assembly.