TM-9-2320-273-20

TRUCK TRACTOR, LINE HAUL; LIGHT EQUIPMENT TRANSPORTER; TRUCK CHASSIS; MEDIUM EQUIPMENT TRANSPORTER

TECHNICAL MANUAL; ORGANIZATIONAL MAINTENANCE

NOVEMBER 1980

TM-9-2320-273-20 - Page 470 of 1500

TM 9-2320-273-20

5-18. BACKUP LAMPS.

a.

Description (fig. 5-36).

When the ratio selector is placed in either reverse speed, the air-

actuated backup switch (located on the transmission) will close and light up the backup lamps if

the ENGINE RUN switch is turned on and the blackout switch is in the normal position.

(Reference Table 5-12.)

NOTE

The compressed air system must be charged

within the normal operating range in order

to shift the transmission and actuate the

backup switch.

Figure 5-36. Backup Lamp Circuit.

5-54