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MAINTENANCE
RX60/72/84 03/09 Maintenance Section 5-19
© 2009 Alamo Group Inc.
MAINTENANCE
STEP VII
Press new output seal (item # 19) into output cap (item # 13). Using one gasket (item # 20) install lower output
cap inot main housing. Retain using bolts and washers (items # 14 & 15). NOTE!: Use gasket sealant
between all parts!
INPUT SHAFT INSTALLATION
STEP I
Install Inner Bearing Cup (item # 27) into back of main Housing (item # 1), Make sure Cup is seated into Main
Housing.
STEP II
Install Outer Bearing Cup (item # 27) into back of Front input cap (item # 4). Make sure Cup is Seated into front
cap.
STEP III
Install Spacer (item # 30) onto input Shaft (item # 5) from the front. Install Shims (item # 7 & 8) onto input Shaft
from the front. For quantity of Shims refer to Step 7. Under Input Shaft Removal.
STEP IV
Install Input Gear (item #31) on to Input Shaft from the front, Install Outer Bearing Cone (item # 27) on to input
shaft and slide down till it seats against Gear. Install Inner Bearing Cone (item # 27) Onto input shaft.
STEP V
Insert Input Shaft with all components down into Main Housing till Inner Bearing Cone is seated into Inner
Bearing Cup. Rotate output shaft back & forth slightly to determine approx. gear back lash. If backlash seems
large, it will be necessary to remove a shim (item # 7 or 8). If not enough backlash is present then add a shim
(item 7 or 8). Proper gear backlash is between .015" to .025".
STEP VI
Input Seal (item # 6) can be installed now or wait till later. With Shims (item # 9&10) lower Input Bearing Cap
(item # 4) down over Input Shaft. Install Bolts (item # 3) into Bearing Cap and tighten them, Check Bearing Pre-
Load. Bearing Preload should be from 12 to 14 pounds of Rolling Torque, if rolling torque is low remove shim
(item# 9 or 10) and if high, add shims. Check backlash of gears again to make sure they are set correctly.
Reshim using shims (items # 7 & 8) as required Once all shims are properly set remove input cap (item # 4)
and apply gasket sealer and reinstall cap and tighten all bolts to recommended torque levels.
STEP VII
Fill Gearbox with Oil, until proper oil level shows on dipstick, Stop and wait about 10 minutes so oil will have
time to run down around Output Shaft bearings then finish filling with oil, This procedure may take longer on
Cold days or Shorter on Hot days. Always recheck Oil Level after gearbox has been run approximately 1/2
hour.