844/642 TelehandlerSINGLE CHAIN REPLACEMENT

Mandatory Safety Shutdown Procedure

BEFORE cleaning, lubricating, or performing service on this equipment:

1.Bring the machine to a full stop on a level surface. (If parking on a slope or hillside cannot be avoided, park across the slope and block the tires.)

2.Fully retract the boom and lower the attachment to the ground.

3.Place controls in NEUTRAL and set park brake.

4.Idle engine for gradual cooling.

5.Turn the starter keyswitch to OFF position and remove the key (take the key with you for security reasons).

ONLY when you have taken these precautions can you be sure it is safe to proceed. Failure to follow the above procedure could lead to serious personal injury or death.

Removal

STEP 1

With the engine running, retract the telescoping boom and level it according to the boom angle indicator, which should read “0”.

STEP 2

Remove the four nuts that secure the clevis of the double chain assembly to the outer boom. Hang both chains over the front of the inner boom.

STEP 3

Push the inner boom into the intermediate boom 2 to 3 inches (50 to 76 mm) to relieve tension on the single chain.

STEP 4

Loosen and remove the four bolts from the rear cover and remove the cover from the boom.

STEP 5

Relieve the hydraulic pressure and remove the extend cylinder. See Section 610 in this manual for correct procedure.

STEP 6

Loosen and remove the three bolts and washers that secure the single chain clevis block to the outer boom.

Template Name: OML_2_col

Template Date: 1994_04_22