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Section 703
Inner Boom Section Removal And Installation
Mustang Telehandler
Template Name: OML_2_col Rac 0-00000
Template Date: 1997_02_12
General Table Of Contents
Template Name: OML_2_col Rac 0-00000
Template Date: 1997_02_12
844/642 Telehandler INNER BOOM
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.
Relieving Hydraulic Pressure For The Tilt Cylinder And Boom Extend Cylinder
1.Remove any attachments from the boom.
2.Fully retract and lower the telescoping boom on a support stand.
3.Turn the key switch to the OFF position to shut down the engine. (See above Mandatory Safety Shutdown Procedure.)
4.Move the tilt cylinder joystick several times to relieve hydraulic pressure in that circuit.
5.Move the boom extend joystick several times to relieve hydraulic pressure in that circuit.
Inner Boom Removal
STEP 1
Loosen and remove the nuts from each clevis that secure the double chain to the outer boom.
STEP 2
Position both ends of the double chain over the front of the inner boom.
STEP 3
Remove the extend cylinder from the boom. See Section 610 of this manual for correct procedure.
STEP 4
Push the inner boom into the intermediate boom 2 to 3 inches (50 - 76 mm) to relieve tension on the single chain.
STEP 5
Loosen and remove the three bolts and washers that secure the single chain clevis block to the outer boom.

Template Name: OML_2_col Rac 0-00000
Template Date: 1997_02_12