PS Magazine - TB 43-PS-554

PS, The Preventative Maintenance Monthly

ISSUE 554

JANUARY 1999
PS Magazine - TB 43-PS-554 - Page 21 of 43
The plug has holes to vent excess pressure from the grease used in the
recuperator. If
you substitute a
standard bolt,
there’s no vent-
ing. Pressure
builds until that
bolt becomes a
miniature rocket just waiting to blast off.
The next time you remove the bolt during services—
WHOOM!
You better
hope you’re not in the way.
Again, use only the hardware your TM calls for. No substitutes!
Substitute bolt lets pressure build
Plug
has
drilled
vent
holes
M119A1 Towed Howitzer . . .
hey,
sergeant!
did you
see
a
bolt fly
over
this
wa y
?
PS 554
23
JAN 99
echanics, you’ve probably heard more than once, “Always use the hard-
ware called for in the TM. Don’t substitute!” The machine thread plug, NSN
5365-01-344-6040, on the stuffing box of your M119A1 howitzer is a
great example of why this is so important.
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