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MAINTENANCE
Maintenance Section 5-10LJ60/72 02-02
© 2004 Alamo Group Inc.
MAINTENANCE
RIGHT ANGLE GEARBOX (OUTBOARD) ASSEMBLY & DISASSEMBLY PROCEDURES
INPUT SHAFT REMOVAL
Step 1. Place Gearbox on appropriate work surface.
Step 2. Remove Vent Plug (item #16) or Complete Top Cover (item #18)
Step 3. Turn Gearbox upside doan allowing Oil to drai from gearbox into catch pan for proper disposal.
Step 4. Turn Gearbox right side up and drop bottom into a hole for support or lay it on its side laying flat.
Step 5. Remove Bolts (item # 23) from front Bearing Cap (item # 24), 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 6. Remove Input shaft (item #26) and Input Gear (item #27), Input Shaft should pull out with Gear and
Bearing Cones (item #12) still on it, Inner Bearing Cone may stay in Housing and Outer Bearing
Cone should come off with front Bearing cover.
Step 7. Remove Inner Bearing Cone, Inner Spacer (item # 13), Outer Bearing Cone, Input Gear, Check now
for Shims (item # 29,30,31) always note quantity of Shims. Remove outer Spacer (item # 28) from
Input Shaft.
Step 8. Remove Input Seal (item # 25), Bearing Cup (item #12) from front Cover and bearing Cup (item#12)
from back of Main Housing (Casing) (item # 1).
OUTPUT SHAFT REMOVAL
Step 1. Remove Cotter Pin (item # 11) from Nut (item # 10) and Output Shaft (item # 8) this can be done by
reaching through opening in front of Main Housing.
Step 2. Slide Output (Pinion) Gear (item # 9) up off of Output Shaft and out of Main Housing.
Step 3. Output Shaft will come out of Main Housing through the bottom, If Output Seal is still in bottom of
the Main Housing use a Soft Metal (Brass or Aluminum) Pin to Drive Shaft down from the top, This
will drive Output Seal out at the same time.
Step 4. Reach in from front or top of Main Housing and remove upper Output Shaft Bearign Cone (item #
12)
Step 5. From the Bottom of Main Housing drive out top Bearing Cup (item # 12) and from the top drive out
the bottom Bearing Cup (item # 2).
PARTS INSPECTION
Step 1. Inspect and Clean all Parts. Check Bearings, Shafts, Gears, Housing and Covers. Shafts should be
inspected at Seal wear areas, Bearing areas, Splines, Threads and all surface areas. Check
Housings for cracks and condition of all holes that are threaded. Check Housing and covers where
Seals drive in for Burrs and scratches. If Bearing Cones are replaced always replace Cups with them.
Gears should not have and rough surfaces where the gears run together. On Main Housing remove
any old Gasket Sealer, Scratches, Wash and completely clean it.