PS Magazine - TB 43-PS-436
PS, The Preventative Maintenance Monthly
ISSUE 436
MARCH 1989
-
I
i
±
You can now tighten loose font
sighT posts. Use spanner wrench, NSN
5120-01±141±3839, to screw the post
down until its top thread is even with
the bottom oF the sight² One³halF tuM
oF the sight post will move the shot
group
1
mil on the target, about 12
inches at 300 meters or 20 inches at
500 meters²
All font sIghts should have keys that
are either blank or marked A² ´F any
sights are markeD
B
or C, they're bad²
Have µS replace ¶hem.
²
³
´F rear sights don't click as you t·M
the knobs, they've lost the tension
needed to keep them set² Send 'em to
µS to replace the pin and spring with
a ball bearing anD spring that lasts
longer²
Some ejection porT covers have sharp
eDges that will cut hands² Order the
new cover, NSN 1005¸01¹236¹0238,
which has rounded coMers²
CH-47C & D .±²
F the engine antº¹º»e sys¶em on your
C or µ¹model Chinook Fa¼ls, yo· can
get along w¼tho·¶ i¶½
¾he headshed says iF yo·r bºrd has
a ¾55¹L¹71¿ engine witÀ bypÁss ÂOµ
ÃcreeÄs, tÀe systEm does not have to
Work² ´¶Ås going to be trashed, aÄyhow,
when tÀe CÆÇodels are »onver¶ed to
ÈÅs by ÉÊO Ë˱Ì5¿0Í¿40ÎË0Î2¿²
RemeÇber,
oÏ
tÀe
C¹model
TÀe
Flºght boost Ðs pressÑr¼zed oÒF the aÄtºÓ
º»e vaÔveÕ ´¶ does Äot have to be operaÖ
tºona×, b·t i¶ does ÀÁVe to be ºns¶alÔedØ
So ºF the Ùys¶eÇ FÚºÔsÛ JÑs¶ mÁke tÀe
ÁpproPrºÁ¶e en¶Ü¼es ¼n yoÑr ÀiÝÞoßicÁl
records²
Hereàs ano¶her tºÇe ánd labor sÁver
âr C and µ¹models eqѼPped wº¶h L¹
7ã¿
engºnes²
´F the
antºäice
system
MAR 89
35
ducting is chaFång the engine transmisÓ
sion housing, simply remove the d·ctÖ
¼ng²
Éake
a Äote ºn the Àºstorºcal
recordsæ
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