TM-9-2320-272-24-4

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

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

JUNE 1998

TM-9-2320-272-24-4 - Page 733 of 836

TM 9-2320-272-24-4

APPENDIX G (Contd)

Tubing Application Tightening Assembly Instructions.

Slide tubing over barbed insert until it bottoms on

fitting.

1. Slide nut and sleeve on tubing.

2.

Slide I.D. of tubing onto fitting insert until it

bottoms.

3. Assemble nut to fitting body.

4.

Tighten assembly finger-tight to cover body

threads.

1.

2.

3.

4.

Slide nut and sleeve on tubing.

Slide I.D. of tubing onto fitting insert until it

bottoms.

Assemble nut to fitting body.

Finger-tighten nut. From that point, tighten

with a wrench two complete turns.

1.

Cut tubing to desired length. Ensure ends are

cut reasonably square.

2.

Slide tubing into preassembled fitting and

push until tube bottoms.

3.

Tighten nut as indicated in chart. Another

check on proper assembly is dimension A,

when nut is fully tightened.

DISASSEMBLY - Remove nut and pull tubing

out of fitting body. Insert will remain on tubing.

REASSEMBLY - Push tubing and insert into

fitting body until it bottoms. Thread nut onto

fitting body and tighten as in step 3.

TUBE O.D. TIGHTEN NUT TO:

A

1/4

85 - 115 lb-in. (9.6 - 13.0 N°m) .085/.105

3/8

12 - 17 lb-ft (16.3 - 23.1 N°m)

.125/.145

1/2

25 - 33 lb-ft (33.9 - 44.7 N°m)

.100/.120

5/8

26 - 35 lb-ft (35.3 - 47.5 N°m)

.115/.135

3/4

38 - 50 lb-ft (51.5 - 67.8 N°m)

.180/.200

G-5