CHAPTER 9 SERVICE GENERAL INFORMATION
2.
Mate the cam, of the Lock Collar, with the cam, of the Bearing inner ring.
3.
Press the Locking Collar against the Bearing wide inner ring and turn it, in the direction of Shaft rotation until it tightly engages. Tighten the Collar further, by tapping on a punch inserted in the drift pin hole.
CAUTION BEFORE proceeding to perform all Service routines on this unit, exercise the MANDATORY SAFETY SHUTDOWN PROCEDURE (page 8).
NOTE:
The following information is also referred to in the Troubleshooting chapter of this manual. It should be understood that all services, detailed in this chapter, are Owner-Operator responsibilities. Where indicated, certain service routines should only be carried-out by (or under the direction of) an authorized GEHL equipment dealer.
SEALED BALL BEARING REPLACEMENT (Fig. 26) Sealed Ball Bearings are used on various Shafts, around the unit. This type of Bearing is generally retained, in place, with a Self-locking Eccentric Collar. The Lock Collar has a counter bored recess, which is eccentric with the Collar bore. This eccentric recess engages or mates with an eccentric end of the Bearing inner ring, when the Bearing is assembled on the Shaft. The Bearing is engaged, on the inner ring cam, by the Collar. This assembly grips the Shaft tightly with a positive binding action that increases with use. The Collar Set Screw provides supplementary locking. A Bearing can be removed from the Shaft by loosening the Set Screw and tapping on a punch which is placed in the drift pin hole, to loosen the Collar. Install Bearings with self-locking Collars in the following manner: 1.
28
Place the Bearing and Collar on the Shaft with the cam surfaces next to each other. Tighten the bolts on the Bearing Retainers.
NOTE: Avoid damaging the Collar by overtightening it. 4.
Last, tighten the Set Screw in the Locking Collar.
2 1
3 4
6 5
1 – Bearing 2 – Set Screw 3 – Collar Cam 4 – Wide Inner Cam Ring 5 – Drift Pin Hole 6 – Eccentric Self Locking Collar
Fig. 26
NOTE: Always tighten Lock Collars in direction that shaft is rotating.
