User Manual

Electrical System
9.34
L2906H, 2906H, 3507H, 619A, 723A, 29.6LP, 29.6, 35.7
9. Remove the hex locknut from the suspect control
shaft.
10. Remove the control from the panel.
b. Disassembly
DO NOT disassemble the cab heater and fan controls.
The controls are not serviceable. Replace controls if
found to be defective.
c. Installat ion and Testin g
1. Check that the variable speed fan control is in the
OFF position.
2. If installing the temperature control, attach the cable
connector to the back of the control.
3. Insert the control shaft through the panel, ensuring
that the knob is in the VERTICAL position.
4. Install the hex locknut on the shaft and tighten.
5. Connect the cab harness connector to the variable
speed fan control.
6. Install the control panel screws.
7. Install the setscrew, securi ng the knob to the control.
8. Properly connect the battery.
9. Close and secure the engine cover.
10. Remove the Do Not Operate Tag from the ignition
key switch and the steering wheel.
9.14 SOLENOIDS, SENSORS AND
SENDERS
9.14.1 Ignition Key Switch
a. Ignition Switch 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. P roper l y disconnect the battery.
5. Remove lower dash panel.
6. Remove the hex n ut se cu ri ng t he i gn iti o n key s wi tch
to the dash.
7. Reach up under the dash to work the ignition switch
and wiring out of the mounting hole.
8. Disconnect the ignition switch connectors from the
cab harne ss conn ect or s, and remov e the switc h
from the machine.
b. Disassembly
DO NOT disassemble the ignition switch. Replace a
defective switch with a new part.
c. Inspection and Replacement
To determine the proper operation of the ignition key
switch, test the wires on the back of the switch for
continuity with an ohmmeter.
Test the ignition key switch for continuity, by checking
from the BAT terminal (1) to each of the remaining
terminals in their corresponding switch position.
If all terminals do not show proper continuity, replace the
ignition switch.
MY2340
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