Opening Of The Transfer Booms; Adjustment Of The Tightening Of The Chains (Two - Extension Models) - Kesla 2009S User Manual

MAINTENANCE

8.6.3 Opening of the transfer booms

1. The extensions are pushed out about 30 cm.
2. The extension cylinder from the transfer boom and the and hydraulic hoses are detached
3. All the slide parts are removed from the mouth of the transfer boom.
4. Tightening nuts of the chain couple are opened and the rear chain is threaded with fasteners in
through the hole and lead out of the mouth hole of the transfer boom. At the same time the whole
extension package is dragged out of the transfer boom.
5. The outer extension is discharged accordingly by removing all the sliding pads and chain roller
from the mouth of the inner extension. The chain is guided through the opening of the roller out of
the mouth orifice of the boom.
6. The cylinder of the extension and the tightening fork of the rear chain is removed and the exten-
sion is pulled out.
7. In a one-extension model points 1 to 3 will be performed.
8. The assembly is done in reverse order.
8.6.4 Adjustment of the tightening of the chains (two - extension mod-
els)
* Extensions are pushed completely out, and then pulled slightly inward, so that the visible chain
loosens up.
*Both chains of the chain couple are tightened to the same extent. A suitable tension is when the
chain bends in the middle when pressed with a hand about 2-3 cm.
* In practice, the chain inside the boom (pulling the extension) is loaded and stretches the most.
Extensions are pulled in and adjusted into the interval of the lugs of the outer and the inner exten-
sion with nuts (4)
~ 10 mm.
* Excessive tightening will wear out chains and chain wheel bearings.
* Too loose chains can rupture when it gets on the edge of the chain wheel.
min. 10 mm between the brackets
54