Changing Of The Sleeve Bearing; Adjustment Of The Grapple Hanger Brake - Kesla 2009S User Manual

MAINTENANCE

8.6.7 Changing of the sleeve bearing

* In the boom has been used the so-called, thin
shelled sleeve bearings, which are long-lived if proper-
ly lubricated.
* When the bearing is worn so that the joint has clearly
a significant gap, pull the shaft and the former bear-
ings for example, by wedging it open at the seam.
* At the installation of new bearings shall be used a
suitable mandrel so that the end of the bearing is not
damaged.
* At the installation is taken into account that any grease holes are aligned.
* Check the condition of the shaft and lubricate the new bearings with the grease in accordance
with the recommendations before installation of the shaft.

8.6.8 Adjustment of the grapple hanger brake

- The adjustment of the grapple hanger brake is reviewed after the first 20 hours of operation and
thereafter every 250 hours
- Swing the crane's boom in the lateral direction so that the grapple swings its entire movement
distance in the lateral direction
- Where the grappler makes more than two oscillations before stopping, the brake of the hanger
needs to be adjusted
- The adjustment is done by rotating the adjusting screw of the brake block
- If the brake block friction surface thickness is less than 2 mm, the friction block needs to be re-
placed.
- Avoid grease ending up on the friction surface when removing the friction block.
56