How To Adjust The Boom Angle Proximity Switch; Boom; How To Replace The Boom Wear Pads - Terex GTH08E-11500 Service And Repair Manual

September 2021
How to Adjust the Boom Angle How to Adj ust the Boom Angle Proximity Switch
Proximity Switch
The boom angle proximity switch is attached to a
mounting bracket, located between the boom and
the chassis directly beneath the boom pivot pin.
The switch location is adjustable.
1 Start the engine.
2 Raise the boom to 60°. Confirm with a digital
level.
3 Working at the pivot end of the boom, locate
the boom angle proximity switch. Loosen the
fasteners, securing the proximity switch
assembly to the chassis, just enough to allow
the bracket to move.
4 Move the proximity switch assembly until the
light of the proximity switch turns on, then
move the proximity switch assembly until the
light of the proximity switch just turns off.
5 Securely tighten the fasteners. Do not over
tighten.
6 Lower the machine to 55°.
Result: The light of the proximity switch
assembly is illuminated.
7 Raise the boom to 60°. Confirm with a digital
level.
Result: The light of the proximity switch
assembly is not illuminated. The proximity
switch is properly calibrated.
Result: The light of the proximity switch
assembly is illuminated. The proximity switch
is not calibrated correctly. Repeat this
procedure beginning with step 4.
Part No. 1288232GT
1-2

Boom

How to Replace the Boom Wear
How to R eplac e the Boom W ear Pads
Pads
Lower wear pads: Using a lifting strap from
1
an overhead crane or a fork lift of sufficient
capacity, lift the boom tube just enough to
remove the weight from the pads.
2 Remove the wear pad retainer plates and
remove the wear pads from the boom.
3 Lubricate the wear surface of the new pads.
Refer to Maintenance Procedure, Lubricate
the Boom.
Note: Do not lubricate the side wear pads.
4 Install the wear pads. Install and securely
tighten the retainer plates. Do not over
tighten.
GTH -844
™
Service and Repair Manual
Boom Components
19