PS Magazine - TB 43-PS-579
PS, The Preventative Maintenance Monthly
ISSUE 579
FEBRUARY 2001
Y
our odds of keeping the starter
stud on your HMMWV tightly
secured are much better if you use the
latest bracket and locknut to hold it.
A loose starter stud eventually
causes the two mounting bolts to
loosen, leading to broken teeth on the
starter or the flywheel.
So use bracket, NSN 5342-01-413-
9005, and serrated flange hex lock-
nut, NSN 5310-00-355-5645, to
secure the stud. Then torque the lock-
nut to 15-19 lb-ft.
To keep the locknut tight, make
sure you retorque it at every scheduled
service.
If your HMMWV is already using
the locknut and bracket shown as
Items 7 and 8 of Fig 38 in TM 9-
2320-280-24P-1, you’ve got the right
hardware.
PS 579
FEB 01
5
O
nce and for all, HMMWV mechan-
ics, it takes one—and only one—0.08-in
spacer plate, NSN 5365-01-210-4903, to
correctly shim the starter to the flywheel.
There’s no need to experiment or do
clearance checks. Just follow the word in
Para 4-8 of TM 9-2320-280-20-2.
The vehicle manufacturer and TACOM
have tested starter installation with no
spacers, one spacer and multiple spacers.
What works is one—just one—spacer.
If you install a starter with one spacer
and tighten the two screws into the engine
block to 30-40 lb-ft and the front stud nut
to 15-19 lb-ft, the starter and the flywheel
will fit together within design tolerances.
That means they’ll work right.
PS 579
FEB 01
4
HMMWV…
HMMWV Seat Back ROD
I
f what you’re getting from sup-
ply for the rear seat back frame for
your 4-seater HMMWV is not what
you want, you’re not alone. NSN
2540-01-188-3229, Item 3 in Fig
202 of TM 9-2320-280-24P-1, is
supposed to bring the seat back and
the hardware to secure it (Items 4, 5
and 6 in Fig 202). If that’s not what
you get, fill out an SF 364, Report
of Discrepancy, and mail it to:
Commander,
TACOM-Rock Island
ATTN: AMSTA-AC-NCDC
Rock Island, IL 61299-7630
Or, e-mail the information asked for
‘Course, installing starters right won’t
stop them from failing, or being bad right
out of the box. But you no longer need to
play games with spacers. One’s just
right—just one.
Use BRACKET
to Hold Starter
on the form to
rods@ria.army.mil
.B
e
sure to include a POC line and DSN
number.
579. 04- 05 (C)
1/10/01
3:30 PM
Page 1
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