Service Manual User guide

RETRACTION CHAIN REPLACEMENT

DISSASSEMBLY

Retract boom completely.

Remove rear boom cover.

Remove extension (large) chain adjusting nut and jam nut.

Remove hose retainer nuts and jam nuts. Disconnect hoses.

Remove bolts holding hose guide pan to front of strongback.

Remove strongback.

Unpin retraction (small) chain from chain ears at back of third

section.

Unpin retraction chain from section one ears (access hole in

bottom of section).

Pull chain out back of boom.

REASSEMBLY

Note: Replace chain ends whenever chain is replaced.

Use fish wire to pull new chain from back of boom to ears in

bottom of section one.

Lay chain over sheave and pin to back of section three.

Reinstall strongback. Use LOCTITE 242 (blue-medium strength)

on all bolts and torque to specification.

Bolt hoseguide pan to strongback.

Reconnect extension chain. With crowd cylinder fully retracted,

tighten extension chain until there is no slack in retracting

chain. Install jam nut.

Reconnect hoses and hose retainers.

Reinstall rear boom cover.