CHAPTER 9 SERVICE GENERAL INFORMATION
WARNING BEFORE servicing 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. Certain service routines, where indicated, should only be performed by (or under the direction of) an authorized GEHL equipment dealer.
1.
Place the bearing and collar on the shaft with the cam surfaces next to each other. Tighten the bolts on the bearing retainers.
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.
IMPORTANT: Overtightening the collar may result in damage. 4.
Last, tighten the set screw in the locking collar. B A
SEALED BALL BEARING REPLACEMENT (Fig. 25) 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.
C
A bearing can be removed from the shaft by unscrewing the set screw, placing a punch in the drift pin hole in the direction opposite shaft rotation, and tapping on the punch in order to loosen the self-locking collar.
A – Bearing B – Set Screw C – Collar Cam D – Wide Inner Cam Ring E – Drift Pin Hole F – Eccentric Self Locking Collar
D
E
Install bearings with self-locking collars in the following manner:
Printed in U.S.A.
F
Fig. 25
31
909871/BP0603
