TM-9-2320-272-24-1

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

TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL; VOLUME 1 OF 4

JUNE 1998

TM-9-2320-272-24-1 - Page 424 of 1015

TM 9-2320-272-24-1

3-17. FUEL DRAIN AND BYPASS TUBING (M939/A1) REPLACEMENT (Contd)

8.

9.

10.

11.

12.

13.

14.

15.

Install clamp (22) on fuel return tube (4) and fuel supply tube (9) with screw (21), new lockwasher (2),

and nut (1).

Install clamp (7) on fuel return tube (4) and fuel supply tube (9) with screw (8), new lockwasher (6),

and nut (5).

NOTE

Step 10 may not be required for all vehicles.

Install two clamps (25) and tubes (4) and (9) on manifold (24) with washer (26), new

lockwasher (27), and screw (28).

Install bracket (11) on engine block (3) with new lockwasher (19) and screw (18).

Install clamp (13) and tube (17) on bracket (11) with spacer (12), washer (14), new luckwasher (15),

and screw (16).

Connect fuel return tube (17) to fuel pump elbow (23).

Connect, fuel supply tube (9) to fuel pump shutoff valve (20).

Connect tubes (17) and (4) to tee (10).

FOLLOW-ON TASKS:

l

Install air compressor-to-engine coolant return tube (para. 3-55).

l

Install water pump (para. 3-68).

3-60