PS Magazine - TB 43-PS-582

PS, The Preventative Maintenance Monthly

ISSUE 582

MAY 2001
PS Magazine - TB 43-PS-582 - Page 4 of 32
PS 582
4
Hot-run Level Checks
Make these checks only after the transmission fluid temperature reaches 160°-
300°F. The fluid must be hot to make an accurate check.
1.
Park the vehicle on a level surface and shift into N, letting the engine idle. Apply
the parking brake and chock the wheels.
2.
Remove the dipstick, wipe it clean and check the fluid level. Then wipe the dip-
stick clean again and check the
fluid level again. The level is
OK if it is anywhere within the
hot-run band on the dipstick.
Add or drain fluid as needed to
bring the level within the band.
3.
Once the level is acceptable,
push the dipstick all the way
into the filler tube and turn the
T-handle until it is tight.
If you are getting level read-
ings that are inconsistent or always wrong, have your mechanic check out the trans-
mission vent tube.
Vent tube blockage can cause overpressure in the transmission, which can alter
the fluid level readings and cause fluid to blow out of the dipstick tube if the T-han-
dle is not intalled tightly.
Details on this
PMCS change are
available in TACOM
Maintenance
Advisory Message
00-020 (Sep 00).
PS 582
MAY 01
5
M939-Series Wreckers.
..
PLUG HYDRAULIC GEYSER
C
leaning up after hydraulic fluid gushes out of the old-style reservoir when you
retract the boom on your M939-series wrecker is a job you don't want.
Here's the way to prevent gushers:
Install a kit, NSN 2590-01-381-3570,
to move the hydraulic tank vent from
the return side of the tank to the outlet
side. You can continue to use the old-
style tank
and
prevent the leaks caused
by the vent being on the wrong side.
If you already have the new tank
with the vent on the outlet side, you
don't need the kit.
Dear Half-Mast,
Sometimes we have to haul
troops between work sites in
our dump trucks. Para 2-
17b(2) of AR 385-55 says
we need a positive locking
device to haul troops. Does
the safety latch on the dump
control lever meet that
requirement?
SFC M.J.
Safety Latch Is Enough
Dump Trucks…
Dear Sergeant M.J.,
It sure does and that's all you need.
Never use a bolt or pin to lock the dump
body to the frame. Bolts work, but if the
driver forgets it's there and raises the bed
later during operations, the bed and the
hydraulic system both get damaged.
Safety latch is a
positive lock
Prevent overflow with kit,
Hot-run
level here
PLUG HYDRAULIC GEYSER
582. 02-05 (C)
4/4/01
9:41 PM
Page 3
Back to Top
Back to Top