844/642 TelehandlerSINGLE CHAIN REPLACEMENT

STEP 28

STEP 31

Remove the grease fitting from the sheave pin. Remove the sheave pin from the roller bearing.

STEP 29

Remove the roller bearing.

STEP 30

The roller bearing and sheave should be assembled before installing. Press the roller bearing into the sheave, apply grease to the inside of the roller bearing, then insert the inner ring into the roller bearing.

Place the roller bearing assembly between the sections of the mount, then insert the pin. Be sure the retainer bolt holes are lined up.

STEP 32

Install the retainer bolt and nut through the pin and tighten. Reposition the single chain over the sheave pulley.

STEP 33

Reinstall the inner boom section, see Section 703 of this manual for the correct procedure.