QubicaAMF XLi - Assembly of the Front End Gearbox

QubicaAMF XLi Pinspotter Motor and Gearbox Manual
400-088-038 16 Revision F
1.3.10 Assembly of the Front End Gearbox
Degrease and clean all serviceable components selected for reuse prior to reassembly with Loctite® 7061
(or equivalent).
Note: Pay special attention to the installation of shims, spacers, and retaining rings while assembling the
gearbox so that endplay and backlash are eliminated.
Keep dirt and foreign particles off shafts in the seal area to minimize wear.
1. Install the intermediate shaft assembly. This unit is factory assembled; do not attempt to remove the
worm gear. Use shims as required between the housing and closed cap. Ensure that the worm gear
rotates freely without end play. Lubricate the O-ring on the closed cap and the housing bore. Apply
Loctite® to the cap screws and install the closed cap using 70 in. lbs. of torque.
2. Install the output gear assembly and shims as required between the flange and the housing. Ensure that
the output gear rotates freely without end play. Lubricate the O-ring in the flange. Apply Loctite® to the
cap screws and install the flange using 120 in. lbs. of torque.
3. To install the seal on the output shaft, lubricate the output shaft and the lip of the oil seal. Make sure
that the spring loaded lip of the seal is facing towards the gearbox. Apply Loctite® Gasket Sealer #2 to
the outer diameter of the seal before it is placed on the shaft.
4. Ensure that the bore of the housing opening is clean and free of any sealant/dirt before installing worm
bearing. Assemble the worm bearing into bore. Use shims as required between the special cap closed
and the outer bearing race.
5. Insert the worm assembly. Install washer and bolt to seat the worm flush against the bearing. Use
Loctite® on the bolt threads and torque to 150 in. lbs.
6. Place the wave spring washer against the worm assembly bearing. Install the upper retaining ring
against the wave spring. Lubricate the worm shaft and the lip of the oil seal and apply Loctite® Gasket
Sealer #2 to the outer edge of the oil seal before installing.
7. Use shims between the special cap and the outer bearing race to set cap interference to .000” to -.002”.
This should be done with the O-ring off.
8. Once the correct shims are determined, install O-ring onto cap, install cap and tighten down
bolts to 70 in. lbs. This shimming will eliminate end play.
9. Clean and recoat the lower pipe socket plug with Loctite® and re-install. Fill the gearbox with 45 ounces
or 1.275 liters of Mobil™ 600 W Cylinder Oil (available from QubicaAMF, Part No. 715-021-716).
10. Reattach the gearbox to the drive motor.