Alamo Industrial RX60, Operator'S Manual

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MAINTENANCE
RX60/72/84 10/12 Maintenance Section 5-25
© 2012 Alamo Group Inc.
MAINTENANCE
Top Input Shaft Preload Setting
Step I.
Drive bearing cup #3 into place on side of gearbox closest to gear. Insert shim #17 if used and install retaining
ring #6. Drive bearing cup #3 back against shim #17 retaining ring #6.
Step II.
Insert bearing cone #3 and gear #2 into approximate locations. Install external clip #8 into proper groove in
shaft #5. Insert shaft #5 into gear #2 and press as far as external clip #8 allows.
Step III.
Press bearing cone #3 onto rear end of shaft #5 against shoulder on shaft. Insert bearing cup #3 and drive into
housing as far as possible. Insert shims #7 against bearing #3 and install internal clip #6.
Step IV.
Tap on input side of shaft #5 and check for end play in bearings. If end play is present additional shims must be
added to rear as in Step 3.
Step V.
Check gear backlash. BAcklash should always be present and should be between 0.12 and 0.020 inches. If
not then shims #7 and #17 must be exchanged between input and rear sides of gearbox. To increase backlash
place a thinner shim on input si9de and thicker shim at rear. To decrease backlash reverse procedure.
Step VI.
Press in all seals and caps and install top cover plate.
Right Angle Gearbox Assembly & Disassembly Procedures
Refer to FIGURE Mnt-R-0404 for location of all item numbers in procedure
REMOVE INPUT SHAFT
Step I.
Place gearbox on appropriate work surface. Remove bolts #20 retaining top cover plate. #22.
Step II.
Drive sharp object (chisel) through seal #4 and force out of housing #1. Repeat procedure for back cap #19.
Step III.
Remove retaining rings #6 from both sides of gearbox. NOTE: Location of shims between bearing and
retaining ring and mark for later installation.
Step IV.
Remove shaft from housing by pressing on splined end of shaft. Bearing cone #3 and gear #2 will remain in
housing. Remove by lifting out. Press bearing cone off rear end of shaft.