PS Magazine - TB 43-PS-439

PS, The Preventative Maintenance Monthly

ISSUE 439

JUNE 1989
PS Magazine - TB 43-PS-439 - Page 5 of 33
M198 Towed Howitzers .
..
AirlIft TRaveL ±ock's
a
MuS²
/i
1±²:
/·'
.±²³
1±²³´
.µ¶
±
·¸¹º »¼½
'
If
you Don't
havE this
travel Lock,
get ±S to
makE it
If you don't have tHis travel Lock,
have your DS unit make it fOr you. IN-
structions are Fund in K±²W³´²W II
(AMCC²M Pam 750³1µ³3, Dec 88)¶
A copy of this pam is available ·om
´Q,
AMCC²M,
AT¸¹:
AMSMCº
AS±³M (Mr »ipton), Roc¼ IslaNd, I»
61299³6000½
¾inaL note¿D² ±²¸ use the airlift
traveÀ lock during towiNgÁ
¸he
reduceÂ
piNtle
weight
ÃouÄÂ
Ãause haNdling probÀems and inÃreased
piNtle Åear aNd the reduÃed tube height
Åill iNcrease interfereNce wÆth terraiN,
BuiÄdÆNgs and other vehÆÃlesÇ
6
JUN 89
f
M109-Series Howitzers² M992 Ammo Carriers .³´
Make Right Ground for Rectifiers
B
ad grounding at the reÃtifier on your
È09's and 99É's Ãan cause high voltage
readings, overcharged and boiLed³over
batteries and buÊed³Ëut voLtage reguÌ
LatorsÍ
Eliminate the poor ground by doing
the fOLlowiNgÎ
•
Remove the rectifier and clean the
corrosion and paint Ïrom the mounting
base and the hull mating surÐÃe with
clean
rags
anÂ
Ãrocus
cloth,
¹S¹
5350³00ÑÉ21³0872Ò
µLean corrosioN ¶Nd p¶iN· from ·¸e
base wit¸ clean rags and cro¹Us ¹Lo·¸
JUN 89
7
•
Remove any corrosion or paiNt
·om the six screw hoLes on the rectiÓier
mounting baseÁ Also remove the packÔ
ing ·om the base, scraping the groove
cLean of all siÄicone compoundÁ
•
Apply
a ·esh
coat of silÆcone
compound,
±S± 8030³0µÕ159³8176,
to the cirÃular area iN the center of the
mouNting baseÍ
•
RepLace the paÃkiNg, ±S± 5330³
01³1Ö3³9865× ¸heN install the rectifierÍ
RepLace the p¶cKing
Even thoUgh the two brass screws
are the real grounding points, this proØ
cedure insUres tHat No FreÆgN material
prevents a good groundÍ
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