MAINTENANCE
MAINTENANCE
Assembly Procedure for T - BOX
Assembly can be accomplished by reversing the disassembly procedure. Figure 17.
Step I.
Install spacer (4), gear (3), and bearing cones (8) onto shaft. If any shims were present between gear and bearing or gear and spacer always reinstall at same location. Make sure that all parts are fully slated.
Step II.
Press new bearing cups into side caps (2).
Step III.
Assemble side cap (2) which was against the gear onto main housing using same shim pack as when disassembled. If shim pack is not available use.030 inches of total shim thickness. Install capscrews and tighten to recommended torque. Install three shaft assembly into housing with gear against the first side cap.
Step IV.
Assemble second side cap (2) onto main housing (7) using same shim pack as when disassembled or if not available use.030 inch shim between cap and housing. Install capscrews (12) and tighten.
Step V.
Check bearing adjustment on rolling torque on cross shaft. If any play exists in shaft, shims must be removed from side cap or cap opposite gear (3). Proper rolling torque should be 10 to 12 inch pounds. If preload is to tight shims must be added under side cap opposite gear.
Step VI.
Input Hub Assembly
Press bearing cups into hub making sure they are fully seated. Press bearing cone onto shaft properly seated against shaft shoulder. Assemble shaft into hub (12), add second bearing cone and gear. Apply a thin coat of Liquid Lock (such as Locktite #270) to the shaft threads. Assemble adjusting nut and tighten to insure that all parts are seated. Then loosen the adjusting nut until a rolling torque of 10 to 12 inch pounds is reached. Insert cotter pin through shaft and adjusting nut. Bend cotter pin ends around radial surface of nut. Do Not Bend
Cotter Over End of Shaft.
Step VII.
Assemble input hub into main housing using same shim pack as when disassembled. If not available use.020 inch shim to start. Install capscrews and tighten to recommended torque.
Step VIII.
Check backlash between gear set. Backlash should be.012 to.024 inches. If backlash is to small add shims between main housing and input hub. Remove shims for excessive backlash.
Step IV.
Remove side caps one at a time, seal with sealer and reinstall. Repeat process for input hub assembly. Gearbox is ready to be filled with good grade of NLGI 000 Grease. See maintenance section for specifications.
RX96 03/09 | Maintenance Section |
© 2009 Alamo Group Inc.
