139 S650 Operation & Maintenance Manual
BACK-UP ALARM SYSTEM
This machine may be equipped with a Back-up Alarm.
Description
The back-up alarm will sound when the operator moves
both steering levers or joystick(s) into the reverse
position. Slight movement of the steering levers into the
reverse position is required with hydrostatic
transmissions, before the back-up alarm will sound.
Inspecting
Figure 182
Inspect for damaged or missing back-up alarm decal
(Item 1) [Figure 182]. Replace if required.
Sit in the seat and fasten the seat belt. Engage the
parking brake. Pull the seat bar all the way down. Start
the engine. Press the PRESS TO OPERATE LOADER
button. Disengage the parking brake.
Move both steering levers or joystick(s) into the reverse
position. The back-up alarm must sound when all wheels
or both tracks are moving in reverse.
The back-up alarm is located on the inside of the rear
door.
Figure 183
Inspect the back-up alarm electrical connections (Item 1)
[Figure 183], wire harness (Item 2) [Figure 183] and
back-up alarm switches (if equipped) (Item 1)
[Figure 184] for tightness and damage. Repair or
replace any damaged components.
If the back-up alarm switches require adjustment, (See
Adjusting Switch Position on Page 140.)
P-90644A
1
P100042A
1
2
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