Installation; Adjustments; Fig. 6-122: Boom Extension Proximity Switch Adjustment - JLG Lull 1044C-54 II Series Service Manual

Installation

Boom Extension
Proximity Switch

Adjustments

Boom Extension
Proximity Switch
31200079
(Ref. Fig. 6-121) The following procedure describes removal of the boom
extension proximity switch.
1. Disconnect wire harness (Item 4) at boom extension proximity switch
(Item 2).
2. Place a piece of masking tape around proximity switch body at the
outer jam nut (Item 3) (this will serve as a guide during reinstallation).
3. Remove inner jam nut (Item 1) and proximity switch. Reinstall inner
jam nut on proximity switch for safekeeping.
(Ref. Fig. 6-121) The following procedure describes installation of the
boom extension proximity switch.
1. Position outer jam nut (Item 3) on switch body (Item 2) at previously
marked position.
2. Install boom extension proximity switch in outer boom. Install inner jam
nut (Item 1). Check gap between end of proximity switch and boom.
See Fig. 6-122.
3. Connect wire harness (Item 4) to proximity switch.
4. Check operation of proximity switch by extending the boom. The boom
extension proximity light must come on at specified distance
(approximately 21 feet with tilting tower or 25 feet with standard
carriage). If the light does not illuminate, stop and retract boom.
Proceed to "Adjustments" below.
Outer Boom Section
Proximity Switch
Outer Jam Nut

Fig. 6-122: Boom Extension Proximity Switch Adjustment

(Ref. Fig. 6-122) The following procedure describes adjustments to the
boom extension proximity switch.
0.19" to
0.25" Gap
Inner Jam
Nut
Boom and Transfer
Middle Rear
Boom Section
6-119