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 36 of 836
TM 9-2320-272-24-4
5-6. FUEL INJECTOR SLEEVE MAINTENANCE (Contd)
CAUTION
Do not roll lower area of injector sleeve which will cause
distortion of total sleeve.
Over-rolling of injector sleeve will cause deformation of sleeve
into O-ring groove.
1.
Position injector sleeve expander tool into injector sleeve (2) in cylinder head (1).
2.
Turn thrust nut (4) to adjust depth of expander tool so that roller (3) extends 0.5 in. (12.7 mm) into
sleeve (2).
3.
Lock thrust nut (4) in place using an Allen wrench.
4.
Push expander tool down, turn, and adjust until 75 lb-in. (8.5 N-m) maximum is reached.
NOTE
Form cutter per specifications in table 5-3.
Table
5-3. Cutter Specifications.
Item
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
In.
0.080
0.090
0.0015
0.0025
0.0077
0.0097
1.0615
1.0635
15° angle relief
15° angle relief
30° 9’ angle relief
0.375
0.312
0.125
0.375
0.010
0.0937
0.384
0.386
0.226
0.236
0.3425
1.250
0.375
(MM)
(2.0320)
(2.2860)
(0.0381)
(0.0635)
(0.1955)
(0.2463)
(26.9621)
(27.0129)
(9.5250)
(7.9375)
(3.1750)
(9.5250)
(0.2540)
(2.3812)
(9.7536)
(9.8044)
(5.7404)
(5.9944)
(8.6995)
(31.7500)
(9.5250)
5-30
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