SHOP MANUAL MT26/31 - 12.2004SHOP MANUAL MT26/31 - 12.2004
DRIVE LINE
CH 3 PAGE 8
SHOP MANUAL MT26/31 - 12.2004SHOP MANUAL MT26/31 - 12.2004
Pinion
Intermediate
Shaft
Intermediate Gear Wheel,
shown outside
Fig 3.9 Rear Axle Pinion Drive
Intermediate
Gear Wheel
Suitable block to
support gear wheel
Shim
Shim
O-ring
Seal Ring
Bearing
Bearing Race
Bearing
Bearing Race
All internal parts in the tandem housing can be changed without removing the housing from the rear axle.
Removal
Remove both actual axle hub assemblies from actual housing (Ref. 3.3.5).
Brake callipers can be left in place on hubs.
Place a piece of hard wood or other suitable material, under each intermediate gear to maintain the vertical
position. ( Approx. 20 x 100 x 500mm)
Remove the retainer plate behind each intermediate shaft. Keep the shims and the O-rings.
Remove the two intermediate gear shafts by removing eight bolts on each and withdraw.
Roll each intermediate gear away from pinion, or lift completely out of housing for replacement of bearings and
races.
Remove the pinion drive cover, by unscrewing eight bolts. Keep the shims.
Withdraw the pinion unit
This can be accomplished by using a slide hammer with an M16 adapter. Removal of intermediate gears and
pinion give access to the inner pinion bearing, bearing race and seal ring, removal of pinion and outher bearing
can be accomplished without moving the intermediate gears.
Clean the mating flanges for traces of sealing compound etc.
Installation
Replace the pinion unit using the same procedure as when removed. Apply a light coate of oil to the pinion
splines.
Tap the pinion carefully into position using a soft mallet. At the same time rotate the pinion slightly to make sure
the splines enter the the drive shaft.
Apply sealing compound to the mating flanges, and replace the pinion cover using the same amount of shims
as when removed.
Tighten the eight bolts.
Position the intermediate gears, and replace the bearing units, using sealing compound on mounting flanges.
Tighten the eight mounting bolts, and put back O-ring shim and retainer plate from back.
Remove wood blocks.
Replace rear axle hub assemblies (Ref. 3.3.5)
Control
Check that all parts are located as when removed.
Make a test drive to see that the operation
of the actual tandem unit is
functioning properly.
3.3.4 Tandem Housing Internal Parts
To Next Page