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MAINTENANCE
RX60/72/84 03/09 Maintenance Section 5-18
© 2009 Alamo Group Inc.
MAINTENANCE
Step lV.
Reach in from front or top of Main Housing and remove upper Output Shaft Cone Bearing (item # 23)
Step V.
From the top of Main Housing drive out top and bottom Bearing Cups (item # 23). Spacer (item # 12) will fall out
once lower bearing cup comes out of housing.
PARTS INSPECTION
Step I
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.
OUTPUT SHAFT INSTALLATION
STEP I
Install Upper Output Shaft Bearing Cup (item # 23) into Main Housing from the bottom. NOTE! : Direction
bearing cup must be installed. Insert spacer (item # 12). Install lower bearing cup (item #23) into main housing
and seat firmly against spacer (item # 12)
STEP II
Install Lower Bearing Cone (item #23) down over Output Shaft from top making sure it is firmly seated against
shoulder on Shaft.
STEP III
Insert Output Shaft (item # 22) into Main Housing from the bottom till Lower Bearing Cone is seated into Lower
Bearing Cup, Slide Upper Bearing Cone down over Output Shaft from the till it seats against and into upper
output Shaft Bearing Cup.
STEP IV
Slide Output Gear (item # 24) down over Output Shaft till it sits against upper Bearing Cone. NOTE! : Place
one shim (item # 7) between gear (item # 24) and top bearing.
STEP V
Install Output Shaft Bearing Adjusting nut (item # 25) Tighten Nut to set Pre-Load on Output Shaft Bearings.
Bearing Preload should be from 15 to 25 inch pounds of Rolling Torque.
STEP VI
Using Soft Metal (Brass or Aluminum) Pin, Strike both ends of Shaft with a hammer and recheck the Bearing
Pre-Load, This is to ensure Bearings and components are centered and seated. If Bearing Pre-Load is OK
insert Cotter Pin (item # 26) and Bend ends.