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MAINTENANCE
RX60/72/84 03/09 Maintenance Section 5-17
© 2009 Alamo Group Inc.
MAINTENANCE
RIGHT ANGLE GEARBOX (OUTBOARD) ASSEMBLY & DISASSEMBLY
PROCEDURES
INPUT SHAFT REMOVAL
Step I.
Place Gearbox on appropriate work surface.
Step II.
Remove Vent Plug (item #32) and Dipstick (item #31).
Step III.
Turn Gearbox upside down allowing Oil to drain from gearbox into catch pan for proper disposal.
Step IV.
Turn Gearbox right side up and drop bottom into a hole for support or lay it on its side laying flat.
Step V.
Remove Bolts (item # 3) from front Bearing Cap (item # 4), this will allow front cover to be removed, It may be
required to drive a wedge between front cover and main housing to loosen cover.
Step VI.
Remove Input shaft (item #5) and Input Gear (item #31), Input Shaft should pull out with Gear and Bearing
Cones (item #27) still on it, Inner Bearing Cone may stay in Housing and Outer Bearing Cone should come off
with front Bearing cover.
Step VII.
Remove Inner Bearing Cone, Inner Spacer (item # 30), Outer Bearing Cone, Input Gear, Check now for Shims
(item # 7& 8) always note quantity of Shims.
Step VIII
Remove Input Seal (item # 6), Bearing Cup (item #27) from front Cover and bearing Cup (item#20) from back
of Main Housing (Casing) (item # 1).
Output Shaft Removal
Step I.
Remove Cotter Pin (item # 26) from Nut (item # 25) and Output Shaft (item # 22) this can be done by reaching
through opening in front of Main Housing. NOTE: Nut is installed with Loctite and may require heating to
remove. Heat nut to approx. 200 F, to ease removal
Step II.
Slide Output (Pinion) Gear (item # 24) up off of Output Shaft and out of Main Housing.
Step lll.
Remove 4 bolts (item # 15), which will allow output cap (item # 13) to be removed. This allows output shaft to
be removed through bottom opening.