PS Magazine - TB 43-PS-492

PS, The Preventative Maintenance Monthly

ISSUE 492

NOVEMBER 1993
PS Magazine - TB 43-PS-492 - Page 12 of 51
M901A± I, M981 FiST .
.²
Gunner's Seat Shortcomin s
M
echaniCs, everytime an ITV oR
FIS±V gunner Jowe²³ his sea´ all the
wayµ you can Count on hav¶ng to ·eplace
a b¸oken s´op sc¸ew.
±ha´'s because ´he height adjus´ment
sLo´ is ´oo ³hort to allow the seat to Rest
against the L¹p of the suppoR´ pipeº When
the ad»us´men´ handle is in ´he unlocked
position¼ ´he ent½¾e weigh´ o¿ ´he seat
(and the gunnerÀs body) pResses down
on the stop scÁew snapping i´ o¿fÃ
±2
PRevent that damage by lEngthenÄng
the height ad»ustment sÅotà HeRe's how:
³´
Æemove the seat assembly ¿rom ´he
suppo¸t pÇȺ
µ¶
Measu¾e
·/¸
inch up ¿Rom ´he top o¿
´he height ad»us´ment slo´ and d¾ÉÊË a
µ5¹
64-ºn
holeÌ
3»
Íut out the a¾ea between ´he slot and
hoLe with Îig saw¼ NSN
¼½½¾¿ÀÁÂÂÃÄ
774¼Å
4Æ
Smooth the ¸Ough edges o¿ ´he slot
wi´h metal fÏle NSN
5³³Ç-À-µ4³-ȳ¼µÉ
5Ê
Æeins´all the seat assÐmbly.
Appendix A o¿ ͱA
¼ÇÄÃ7Ç
is your
au´hoRi´y ¿ÑR oRde¸ing ´he »ig Òaw and
Óe´al fiÔeÕ
NOVËÌ
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