PS Magazine - TB 43-PS-630

PS, The Preventative Maintenance Monthly

ISSUE 630

MAY 2005
PS Magazine - TB 43-PS-630 - Page 10 of 33
M916A1/A2,
M917A1
Rear Axle
Brake
Camshafts
NSN 2530-01-446-7969 gets the
righthand
(curbside)
brake
camshaft for the truck’s rear
bogie axle. It’s also used on the
lefthand front bogie axle. Order
NSN 2530-01-446-6784 when you
need the lefthand (streetside)
rear and righthand front brake
camshaft. Both NSNs replace the
parts info shown as Item 21, Fig
195 of TM 9-2320-363-24P.
M101A3
Trailer Bow
Use NSN 2540-00-693-0744 to
get the steel bow for the
3
⁄
4
-ton trailer. This bow is used
on all models in the M101-
series trailers, and is shown as
Item 21 of TM 9-2330-202-14&P.
PS 630
MAY 05
16
M939/A1 5-Ton Trucks…
O
perators, once the EMERGENCY ENGINE STOP lever is pulled on your
M939/A1 truck, you won’t be able to restart it until the hood is raised and the fuel
cutoff valve is manually reset.
Remember that the EMERGENCY
ENGINE STOP lever is for
emergen-
cies
only. Use both the battery ON/OFF
switch and the START/RUN/OFF
switch to shut down the engine under
normal conditions.
Shutdown procedures should be
closely followed on all M939’s
equipped with antilock braking system
(ABS). Otherwise, the electronic con-
trol unit (ECU) may be damaged, faults
created, and the ABS valves will stop
working. Turn the vehicle light switch
off and turn the ignition switch to the
OFF position. Then wait for the engine
to completely stop before turning the
battery switch to the OFF position.
If you
must
use the lever, call in your
mechanic to reset it and check out the
problem before trying to start the
engine again.
they may
be small,
but these
articles
are loaded
with
good
info!
You’re fooling yourself if you think it’s just a matter of pushing the EMER-
GENCY ENGINE STOP lever back in. You’ll just keep cranking an engine that
won’t start. That drains the batteries and can burn up the starter.
…a mechanic
must reset it
by hand.
he just
won’t
give
up, will he?
bet he used the
emergency engine
stop lever when
he shut down!
once the
emergency
engine stop
is pulled…
630.16-17(C)
4/2/05
10:48 AM
Page 1
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