PS Magazine - TB 43-PS-571
PS, The Preventative Maintenance Monthly
ISSUE 571
JUNE 2000
PS 571
9
JUN 00
central tire inflation system (CTIS) controller surge protection kit is available
for M1074/M1075 PLS tractors not already equipped with a surge protector.
The surge protector disconnects power to the
CTIS controller any time it senses a voltage spike
of more than 30 volts. This prevents damage to
the controller when the engine is accidentally
started or stopped with the CTIS switch on. (Driv-
ers should turn off CTIS power
before
starting
or stopping the engine.)
Once the voltage drops below 30 volts, power
is restored. No reset is required.
The kit, NSN 2530-01-459-4513, modifies
older controllers in the supply system under NSN
4810-01-359-2945. These older controllers, iden-
tified by part number (PN) 10214033, do not
have built-in protection.
The new controller, identified by PN 10214033REVA but carrying the same
NSN as the older one, has the surge protection built in.
Installation instructions come with the kit.
earings wear out when they don’t get grease regularly, so make sure the
turntable bearings on your HEMTT crane stay greasy.
Every 6 months or 250 operating hours, whichever comes first, the bearings
get GAA, according to TM 9-2320-279-20-1. But many of them don’t get it at
all because you can’t see the grease fitting unless you raise the crane mast.
If you don’t lube them, the bearings go dry and wear out, which will cost your
unit a bundle.
Raise the mast, find the fitting and lube it this way:
1.
Pump in GAA until you see new grease coming out of the upper seal.
2.
Rotate the crane 90
°
and repeat step 1. Continue rotating and lubing until the
turntable has been lubed four times.
3.
Then rotate 360
°
to spread the lube.
Note: Don’t lube the external gear teeth on the turntable when you’re operat-
ing in desert sand. The lube attracts sand and causes more damage than it
prevents.
Palletized Loading System . . .
Raise
mast,
find
grease
fitting
and
lube
can i get a surge
protection kit for
these
trucks
so i don't have to
replace
so
many
ctis
controllers?
sure enough,
get kit, nsn 2530-
01-459-4513!
ready
to get to
work?
sure, but
don't you think
it's time you
lubed
my
bearings
?
it's been
6
months
!
HEMTT . . .
Don't lube external teeth in sandy conditions
Pull out CTIS controller
to check part number
PS 571
9
JUN 00
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