PS Magazine - TB 43-PS-508
PS, The Preventative Maintenance Monthly
ISSUE 508
MARCH 1995
M109-Series SP HowIters,
M992±SeR²e³ Ammo CarRieR³
..±
O
perators, it's easy To tell when it±s Time To
reveRse The sprockets on some M109 -serIes
how²tzeRs aNd M992³series ammo caRRiers.
JusT pay aTtent´on to tHe bUILt
-
in wear maRks oN
tHe sprockeT TeeThµ
When both sides are woRN
.!±²³´
TO The marks, you Replace the sprOcke±.
¶T±s a b´T Harder if your vehicle has ·-136
track. ·He sprocKets used w´th ThaT TRack doN¸T
have wear maRKsµ ¹N ºHose cases» ¼se THe spRocKeT
wear gauge, ½S½ 49¾¿-0¿-9¿8-7ÀÁÁ·He gauge Has
FouR measURemeNTs calÃed oUt on iTs surFaceÄ Åse only THe Æast oNeÇ
L/2
´Nch. WHeN
wear Reaches
L/2
inch» Reverse the sprocKetÈ Again» when both sides are woÉnÊ
replace tHe sprocKetË
¹f you ÌorgeT To check the spRockeTs
after each operatioNÍ liKe iT says in THe
-1 OÎMsÍ The spRockets may weaR Too faR
into oNe side oÏ The teeth.
ÎhaT causes The spÉocKeT to "HooKÐ
tracK end conNecTors duriNg opeRaTion.
·he connecTors are damaged» track liÏE
is RedUced aNd spRockets aRe bRokeNÂ
Ño RemembeR to Keep an eye on tHe spÉocKetsÒ ÓeveRse Ôem RighT and you±ll get
a FUÕL liÖTime oÏ weaR fRom themÂ
Back to TopBack to Top
