PS Magazine - OCTOBER 1985
PS, The Preventative Maintenance Monthly
ISSUE 395
OCTOBER 1985
·
=
if
Creeping around is fne in horror
movies, but when your Bradley or
MLRS creeps While idling in gear, it
makes Fr a di±erent sort o² horror.
I² your Bradley or MLRS creeps, the
engine idle is too high or the "cut-in³
speed o² the transmission is too low´
That means the vehicle wilµ move any
time the transmission is in gear and the
brake's not applied´ Also, the vehicle
won't slow down as much when the ¶ccelerator is releasE´
·
¸ither condition makes
±
Fr accident possibilities that you don't need.
¸ngine idle speed is 775-825 RPM´ Transmission cut¹in speed varies ºom
just under 850 R»M Fr older transmissions to 9¼ RPM´
²
Mechanics can stop creeping by adjusting engine idle speed or maKing the
transmission cut½in adjustments shown on Pages 6½569 thru 6¾573 o² TM
9¿À350½À5ÀÁÀ0¾1¾3 Âr the Bradley's and
on
Pages
6½461 thru 6-4Ã o² TM
9-Ä450ÅÃ6-20-3 Fr MLRS´
Don't Frget to rechecK the transmisÆ
sion schedule adjusÇent any time cut¹iN
is adjusted. See Pages 6-574 thrU 6-576
in the È252-20-1-3 Fr Bradley's and
Pages 6-465 thru 6-467 o² the ¾646ÉÀ0
or MLRS´
.
40
!±²
l!
±1
L
Lock Top Before tow
One thing leads to
Ê
another .ËË
Towing an M198 Without the top carÌiage locking
pin in place leads to more than $11,000 iÍ damage .
..
Îhich leads to a demand Fr Fur parts that are in short supply Ë.
.
Îhich leads to as much as 18 months' doWntime Fr your howitzer!
So, gunners, never let this chain o² events get started. Make sure the locking
pin's in place and secured with its retaining pin beFre toWing´
That will save the travel lock assembly, angle drive unit, eccentric adjusting
ring and internal gearÏall o² which are in short supplyË
If ±he Key DOesn'± Fi±
Don't go aÐer it with a sledgehamÑ
mer! That's the word when trying to inÆ
stall the spade key on your M 198Ë
There's a tight ft on some 198's
ÒetWeen the key and the spade. The Ót
gets even tighter i² theÔe' s mud or crud
jammed under the trail´
You can cut down on the e±ort needÆ
ed to Õake the installation by making
sure the keyWay is clean´
Îhat you don't need to do is use a
sledgehamÕer as a Öersuader´ That just
messes up the Key or wedges it so tight
you'
II
Have to pry it out.
OCT 85
4²
Clean keyway
before you sLick
key in
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