PS Magazine - TB 43-PS-565
PS, The Preventative Maintenance Monthly
ISSUE 565
DECEMBER 1999
PS 565
11
DEC 99
PS 565
10
DEC 99
Tie rod, rear, NSN 2530-01-210-3623
Tie rod, front, NSN 2530-01-210-3624
M915-Series Trucks . . .
Stop Those Transmission Blues
D
rivers, remember you can take two steps forward in your M915A1-series
truck, but only one back. If you forget, you’ll be taking a lot of steps back to
the motor pool.
TM 9-2320-273-10 says it’s OK to upshift two gears at a time through your
tractor truck’s gear range up to 11th gear. Above that, it’s only one gear at a time.
But, some operators think it’s
OK to downshift two gears at
time from 11th gear.
No way! Your truck’s transmis-
sion was made to be downshifted
only one gear at a time, with the
engine at 1,650 rpm or less. Two
gears at a time tears up the trans-
mission.
It can also make the engine rev
at more than 2,050 rpm, which
disconnects it from the transmission. That’s a deadly situation going downhill.
HEMTT tie rod ends are available, mechanics, so you don’t have to replace
the entire tie rod.
he fuel transfer
hose assembly that
most of you need for
your M978 fuel
tanker is NSN 4210-
01-381-2846. That’s
Item 1 in Fig 396 of
TM 9-2320-279-24P
(Dec 98).
The hose and cou-
pling info in Fig 395
of the -24P is for an
arctic hose. It has a
short service life if
used in other climates.
If you really need
the arctic hose assem-
bly (Item 1 in Fig 395),
NSN 4720-01-433-
3141, bulk hose (Item
6), NSN 4720-00-957-
2434 or arctic coupling
(Item 7), NSN 4730-
01-155-5037, you
must contact the item
manager at S9C, DSN
850-2786 or (614) 692-
2786. Otherwise, your
request for these items
will be rejected to
head off leaking hose
problems.
The information
in Fig 254 of TM 9-
2320-279-20P (Jun 94),
which was superseded
by the -24P, is also
for the arctic hose.
HEMTT . . .
This information is in Fig 219 of TM 9-2320-279-24P-1. It affects Fig 153 of
TM 9-2320-279-20P, which has been replaced by the -24P-1 and -24P-2.
Tie rod end, curbside, NSN 2530-01-411-6237
Tie rod end, roadside, NSN 2530-01-411-6236
Tie rod end, curbside, NSN 2530-01-411-6232
Tie rod end, roadside, NSN 2530-01-411-6230
Tie Rod Parts Update
yikes!
i've got the
wrong
hose
!
Downshift one gear at a time
PS 565
11
DEC 99
PS 565
10
DEC 99
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