Tiger BENGAL JD51 M Series, Mounting And Operating Instructions

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MAINTENANCE
Boom
Maintenance Section 4-
31
©2021 Alamo Group Inc.
MAINTENANCE
GROUND ROLLER BEARING REPLACEMENT
1.
Remove existing ground roller brackets, bearings, and ground roller.
2.
Remove bearings from stub shafts and ground roller brackets.
3.
Clean stub shafts thoroughly, and apply anti-seize to O.D. of outer end.
4. Before installation, bearings must be fully greased per the following protocol: 1.Add 2 or 3
pumps of grease, 2. Spin the bearing 2 to 3 times. 3. Add 2 or 3 pumps of grease. 4. Spin the
bearing 2 to 3 times. 5. Add 2 or 3 pumps of grease. Continue this procedure until you can
visually confirm that grease is purging from the entire circumference of the seal.
5.
Install bearing onto ground roller brackets using existing hardware and Loctite 271.
6.
Slide bearing-ground roller bracket assemblies onto stub shafts of ground roller.
7.
Install ground roller brackets onto flail bonnet using existing hardware.
8.
Insure that ground roller brackets are set to the same elevation on both sides.
9.
Center ground roller in bearings.
10. Tighten one setscrew in one bearing onto stub shaft of ground roller.
11. At the other end, remove the setscrew collar and drill 5/16” holes in both setscrew locations
into the stub shaft 3/16” dear (or align setscrew holes in bearing collar with existing
countersinks in stub shaft.
12. Reinstall setscrew collar on drilled-end. Remove both setscrews, apply Loctite 271 or
equivalent, and tighten setscrews into stub shaft.
13. Then remove setscrew collar from other end, and repeat the drilling procedure from Step 11.
Reinstall setscrew collar and install setscrews per Step 12.
See illustrations in the Common Parts Section.