TM-9-2320-272-24-3

TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)

TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL; VOLUME 3 OF 4

JUNE 1998

TM-9-2320-272-24-3 - Page 146 of 799

TM 9-2320-272-24-3

4-66. FRONT WIRING HARNESS (M939/A1) REPLACEMENT (Contd)

12.

Connect two wires (24) to spring brake pressure switch (25).

13.

Connect wire (3) to engine temperature gauge (2).

14.

Connect wire (23) to transmission oil temperature gauge (27).

15.

Connect wire (19) to engine oil pressure gauge (20).

16.

Connect wire (17) to fuel gauge (18).

17.

Connect five wires (6) to instrument cluster lights (5).

18.

Connect wire (21) to wire (22) on instrument cluster wire assembly (4).

19.

Connect wires (13), (14), and (15) to starter switch (16).

20.

Connect wire (10), two wires (11), and wire (12) to battery switch (9).

21.

Connect tachometer driveshaft (8) to tachometer on instrument panel (26).

22.

Connect speedometer driveshaft (7) to speedometer on panel (26).

23.

Install air tube (1) to air pressure gauge (28) on panel (26).

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