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2 Part 1 - Hub reduction with 3 - 4 planets
Wheel end with unitized bearing
Fig. 2.20
Fig. 2.21
Fig. 2.22
Checking and replacing parts.
1. Thoroughly clean all the hub parts.
2. Check all the parts for wear, deformation or other damage.
3. Check needle rollers, gears and all bearing surfaces.
4. If a planetary gears is damaged, all the planetary gear journals
and rollers must also be replaced at the same time since they
are matched within the same tolerance class for optimally
smooth operation.
5. Also check the contact surface of the seal on the drive shaft.
6. Replace damaged parts. Grease the rollers of the planets gears
and assemble them in the gears, with the spacer sleeve. Fig. 2.20
NOTE
: each gear must have 38 needle rollers.
Place the planets gears and thrust washers in the hub casing,
aligning with the journal pin bore, and ensuring that the brass
washers are in contact with the hub casing. Fit new O-rings on
the journal pins and grease thoroughly with GLEITMO 805 grease.
Press in the journal pins using a drift. The pins should be pressed in
sufficiently to allow the retaining circlips to be fitted inside. Fig.2.21
Fit the retaining circlips on the journal pins. Fig. 2.22
If damaged: remove the old inner seal and lubricate and press
into position by hand a new inner hub seal. Fig. 2.23
Fig. 2.23
Meritor Wheel end assembly
19
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