PS Magazine - JUNE 1984
PS, The Preventative Maintenance Monthly
ISSUE 379
JUNE 1984
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ÒÓÔÕÖ×ØÙ
Artillery Weapons .±²
Keep Sight Mount Tight
Loose sigjt mounTs are a real problem fr all arTillery weapons, b!t especial±
²Y FR towed howiTzers and the M110A2 SP howiTzers. ³he sight mounts are
exposed to tRee limBs´ BrusHµyou na¶e it·
¸
A loose sight mount can cost you dearly. ¹or one Thing, it may Get so loose
it ºlls o»¼ ½nd i¾ it has a siGht in placE when it ºlls o¿À scratch one expensive
sighÁÂ
ÃoR anotheR thing, Äou proBaBly won't be able to hit TÅe broad side o¾ a Barn
i¾ youR sigÆÁ mounÇ is looseÈ
Make suRe all ÉouR sight mounTs have lockwashers under the cap screws.
V
iBra±
tion on aRtil²eÊ pieces will loosen up ordinary washersË
Ãinally, make suRe your mounTs are tiGht when you emplace yoUr weÌponË
Do it each time Íou move.
Îhat WaÏ´ ÐouÑll get where Òou're goinG wiTh your sight Óounts in place,
and you'll stand a mucÔ betTer chance o¾ ÕiTtinÖ your TarGet×
M578, M110A2 VehIcLes ³´µ
Headlight Base Does Exist
³hat partØrÙbbeR, partÚsteel base your
headlight mounÁs to is sort oÛ hidÜen in
the Ý578 and MÞ 10A2 ß20Pà
:
sá
I¾ you look at Tâe dual headlight
¾ãguRes, you wonät see the base.
åou will
ænÜ
it as part
oÛ
tâe
headliGht wiring harness. Check ouT
çTem 5 oÛ ¹ig 83 in èM 9ß2350ß3éêZOë
(howitzer) or Item 5 oÛ ¹ig 85 in ìM
9í2350ß238î20P (Recovery veïicle).
20
I
.1
m5¶8, M11 O·
¸
2 vehIcLes ¹º»
Ey±bALl t²³ ´Ock
ðñU òrivers can save óñurselÛ a baÜ
bUmô ñn TÅe ÅeaÜ bó makinG sure TÅe
ñuTsiòe ÅaTcÅ lñõK works
OK.
IÛ TÅe lñck Üñesnä
ö
T wñrk, GeT óñUr
mecÅanic Tñ Û÷X iT.
øóeball ùÅe ear welòeÜ ñn TÅe ÅaTcÅ
arm. ITäs tÅe ôarT tÅaT úaTcÅes Unòer tÅe
lñck wÅen TÅe haTcÅ is Ûullû ñôen.
ìÅereüs veýó liTTle clearance beTween
TÅe ear anÜ TÅe mñUnTinG brackeT. IÛ TÅe
brackeT lññsens-ñr iÛ TÅe ÅatcÅ sÅiÛTs
a liTTle-TÅe ear can ÅanG uô ñn TÅe
brackeT. ìÅaTäþ weakenÿ TÅe welÜ.
ìÅe ear can break ñĀ iÛ TÅe welÜ
Gives way. IÛ TÅaT Åaôôens wÅen óñU
M198 Towed Howi¼zers ´½½
TÅiNā TÅe ÅaTcÅ is lñckeÜ open, it can
Ăll ñn yñU.
ăeôorT anó Trñuble wiTÅ TÅe ÅaTcâ
lñck
ñr
TÅe
lñckinG
ear
Tñ
óñUr
ñrganĄzaTiñnal maintenance riGÅT awaą.
Save óñUrselÛ a biG ÅeaÜacÅe.
Traversing U-Joint Rust
ç¾ traversinG your Ćć98 Towed howiTzer Åas become a heavyßdUty Job, yñU
may have a rÙst problem.
Seems rust can bUild up aT the 3Ĉ
ĉ
ĊċJñinTs on the Traversing roÜ between tÅe
Åand crank
Č
and the gear drive.
čince Thereäs no lube requiremenT ¾Ďr TÅe Joints, you won't know youäve Gñt
a rust ôroblem unTil bindinG starTs.
³ď 43ß000Đß36đĐ (Ēpr 83), Tho, gives your mechanic tÅe GoēaÅeaÜ To lube
The 3 JoinTs Ĕquarterly, like soĕ
•
ăemove the 2 access covers Ėom the top carriage. ďe careėĘ not to damaGe
The gaskets.
Remove acCesss Covers
Grease
uniVrsAls
·
qua±e²Ly
•·
ĒpęĚy a light coat o¾ ěPĜ (General purpose aircraĝt Grease) to the 3
univeRsalsĞ
•
ç¾ a Gasket is damaged, replace it with ğSğ 5330ßĠĐÚ030Ú8ġ66á ³hen pUt
back tâe access coversĢ
JUN 8
21
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