PS Magazine - MARCH 1984
PS, The Preventative Maintenance Monthly
ISSUE 376
MARCH 1984
I
I
Noticed a fnny scraping noise in the
turret that you can't idenTiFy?
Check FOr score marks on the gas
parTiculate Filter uniT canisters. ±ind
any? ²hen bacK Up a liTtle and eyeball
The M240 coax machine gu³ ammo
storage box moUnting brackeTs.
Chances are the box has broken loose
±²
,±²r\³
'I•±²,
³´
I
\f,!±²1-³
·´µ
µ-¶
box pull away ´om iTs mount, 'special-
ly when it's fll oF ammo. ²he box will
crowd the GP±µ canisters oUt e³ough
so they'll rub against the hUll casting
just oUtside the Turret basket. Solve the
problem by geTting your DSµ to reweld
the ammo box mounting brackets.
Drive SpRocket Wear Change
YoU can FOrget thaT driVe sprocket
and hub assembly wear caution o³ ¶age
10·348 oF ²M 9·2350¸255¸20¸1·3¹.
²he headshed says The sprockeTs and
hUbs are good Fºr as long as »hey pass
the sprocket gage wear Test¼ ²he
150·mile Use limiT For reveRsed
sprockets has been scraTched.
You replace a reversed sprocket
and hub when it's worn down to the
wEar marks in both directions
Between the sprocket teeth.
TRy THis for S±a²ers
When you
itl
a nEw Leec½¾NeVi¿le
-"¶.¸¹
sÀarter,
NSN
2990·01¾Á36·1206,
in
your MÂ
Tn·
you
¸11
need a new engine
oil FÃed line, too.
Ähere's enough interÅre³ce between
the new starter and the No. 4 bearing
oil Åed line (Item 2,
±ig Á8,
²M
9Æ2350Ç255·20PÈ1)
that
The
starter
won't Éit.
ÊemoVe the old Åed line and discard
itË ²he replacement line has the same
NSN, 47Á0Ç01Ç0Ì4·8343, as the old
one. ²he parT number, Á2284528, is
diÍerent, tho, so use iT when you order.
1³´µ¶·
Fuel ¸ank ¹epair
±or The how·to on fel
¹N
repair,
see Para
2Î5F Ïn ²B
43·0001·39¸Ð
(ÑcT 83Ò.
When yoU rEPlace the
starter, rePLace the No±
4
oil Line² too
NoT all fel leaÓs near The engine
come
´om
the
fel
FÏlter.
You'Ve
Ôgured That out aFter replacing the Ôlter
only To still Ônd fel leaking, right?
Check out the 6 fel lines leading to
and connecting The main fel conTrol.
A
bad preFOrmed packing on any one
oF 'em coUld be The cause oF your
problem.
Õhe li³es and packings are in ±Ög 14,
Page 2·34 oF ²M 9·2350·255·20P·1.
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