PS Magazine - TB 43-PS-549

PS, The Preventative Maintenance Monthly

ISSUE 549

AUGUST 1998

PS Magazine - TB 43-PS-549 - Page 22 of 51
Dear EditoR,
A couple of dI!overie6 we've made on The MK-155 mIne clearIng line
charge (M±CL/C) make Trouble6hooTIng ea6ier.
When a M±CL/C fai²6 The conTinuiTy Te6T ThaT³6 parT of The p´µ¶F·rIng
check6¸ ´µpaIrmen U6ually ¹x The problem
b
RµplacIng The conTrol boXº
BuT The bo» I6 probably OKº ¼he 6afeTy
6½iTch i6 probably noT OK¾ ¿f The 6½iTch
wa6n'T In6Tal/ed correcTly¸ IT Throw6 oÀF
The conTinuiTyº Adju6T The ÁwiTch and do
The conTinuiTy check agaInº ±T 6hould pa66¾
lnÂTrucTÃon6 on adJuÄTing The 6½iTch are
on Pge 5-12 in ÅM 9-1375Æ215-13&Ç
Ou-f·
adjustmenT
SafEty
Switch
caUSES BaD
con±Inu²ty
cHEck
¿f you pump up pre66È´µ and
ÉÊËÌÍÎ
iT ÏI6e6 a launcher arm in6Tead
of 6Taying In The accumulatoR,
you lIkely have a bum 6olenoIdº
A 6olenoid ThaT 6TIck6 open
even a Tiny biT leT6 p´µ66u´µ leak
ouT of The accumulaToRÐ
Ñeplace The 6olenoId¸ NSN
4810-01Ò351-5845Ó and The
accumulaTor 6hould ÁTaÔT
accumulaTing pRµ66ure agaInº
WÕ1 Salvador Öopez
H×CØ 317Th Engr Bn
ÙT BenningØ GA


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