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3.3
Work to be carried out by a competent mechanic
3.3.1 Instructions for replacing the sleeve bearing of K53a/K53c/DKB-25/DKD-35
1.
Disconnect the hydraulic hoses.
2.
Remove the forks from the forklift truck.
3.
Take the box rotator from the forklift truck / tractor and put it on its back on a flat, stable surface.
4.
Take the pressure off the guide block (6) by loosening the pressure bolts.
5.
Support the rotating cylinder so it will no longer rest on the gear wheel of the fork carrier foldaway
model(9)/fork carrier plug-in model (14) (use appropriate lifting equipment; the minimum lifting capacity
must exceed the weight of the box rotator; see technical data in chapter 2.1).
6.
Remove the locking plate (4) after unscrewing the socket bolts. Prevent the fork carrier of the back plate
from unexpected movements.
7.
Pull the fork carrier from the shaft of the fork positioner, clean the shaft of the fork positioner of the back
plate (1) and check for wear and tear.
Contact the dealer after detecting any wear. Also check the
lubrication. The lubricant must be applied to the bearing bush via the grease nipple and the opening on the
shaft of the fork positioner. Clean the lubrication duct, if necessary.
8.
Push the old sleeve bearing (3) out of the bearing housing from the gear wheel side to the front of the fork
carrier. Clean the bearing housing and the shaft of the fork positioner.
9.
Push the new sleeve bearing into the bearing housing. Make sure the sleeve bearing fits well and avoid any
damage. The front of the sleeve bearing must be flush with the front of the bearing housing.
10.
Return the fork carrier with the new sleeve bearing onto the back plate. Avoid any damage to the sleeve
bearing by means of good support and guidance. Make sure the fork carrier and the rotating cylinder are
correctly repositioned.
11.
Mount the locking plate using the three socket bolts and secure firmly (100Nm).
12.
Return the guide block and put it under pressure using the pressure bolts (60 Nm). Secure the bolts using the
lock nuts.
13.
Put the box rotator back onto the forklift truck/tractor and return the forks.
14.
Lubricate the bearings, connect the hydraulic hoses, and check that the box rotator is working correctly.
Always use original WIFO parts for replacement in order to comply with the warranty terms and conditions.