MASSEY FERGUSON 5400 - Adjusting the Bevel Gear Distance, Refitting and Shimming of the Drive Pinion

Massey Ferguson 5400 - Issue 1.a
06E01.15
GPA20 differential
I . Adjusting the bevel gear distance,
refitting and shimming of the drive
pinion
Preparation
66. Check the components and replace any defective
parts.
67. Using a press and a suitable fixture, insert the cone
(30) fully into the drive pinion shoulder.
Adjusting the bevel gear distance
IMPORTANT: The bevel gear distance must be adjusted
before the pre-load shimming of the drive pinion bear-
ings.
The thickness of shims “E” (50) (Fig. 19) required to
position the drive pinion is calculated as follows:
E = Z + T - (X + Y)
E = 184.955 + T - (X +90.520).
Legend:
Z Nominal drive pinion dimension = 184.955 mm
T Correction of the nominal dimension engraved on
the drive pinion; this may be a positive or negative
value.
X Dimension of the centre housing stamped on the
rear right-hand side of the housing, behind the lift
ram.
Y Dimension of the drive pinion with bearing =
90.520 mm.
Fig. 19