JLG 723A Service Manual - Manual (Page 115)

9.7 L2906H, 2906H, 3507H, 619A, 723A, 29.6LP, 29.6, 35.7
Electrical System
9.7 INSTRUMENT PANEL
a. Removal
1. Park the machine on a firm, level surface with the
machine level, retract and level the boom. Place the
transmission control lever in the (N) NEUTRAL
position and engage the parking brake. Shut the
engine OFF.
2. Place a Do Not Operate Tag on both the ignition key
switch and the steering wheel, stating that the
machine should not be operated.
3. Allow the engine and all system fluids to cool.
4. Properly disconnect the battery.
5. Remove the instrument panel from the dash. The
instrument panel is held in place with clips.
6. Slide the instrument panel out of the operator
console.
7. Disconnect the wiring harnesses.
b. Installation
1. Connect the instrument panel wiring harnesses.
2. Position the instrument panel in the operator
console.
3. Secure the instrument panel to the dash.
4. Properly connect the battery.
5. Close and secure the engine cover.
6. Remove the Do Not Operate Tag from the ignition
key switch and the steering wheel.
9.8 FUSES AND RELAYS
9.8.1 Engine Compartment Relays and
Fuses
There are three relays located on the frame, below the
battery. The relays control the starter (1) and engine
preheat (2).
NOTICE
Static electricity can cause damage to the operator’s
instrument cluster. Avoid any manner of touching
(hands, tools, etc.) the printed circuit boards and
terminals. Disconnect the battery negative (-) cable at
its battery terminal before beginning this procedure.
Failure to comply can result in damage to the
operator’s instrument cluster and malfunction of the
instruments and indicator lights.
MY3360
MZ5350
2
1