PS Magazine - TB 43-PS-559
PS, The Preventative Maintenance Monthly
ISSUE 559
JUNE 1999
PS 559
2
JUN 99
PS 559
3
JUN 99
he transmission auxiliary oil cooler on 5-ton FMTV tractors and wreckers
stands tall—and unprotected—to control oil temperature and pressure.
This oil cooler looks very much like a radiator,
with cooling fins facing out from the vehicle. It
is also very much unprotected from external dam-
age, like kicks, slams, pokes and jabs.
Protect the cooler by installing a sheet of grill
screen, NSN 2510-01-196-5311, in front of the
fins.
The screen comes in a 26
x
22-in piece that you
cut to fit so you can use the hardware already in
place. All you need to remove before installing
the grill is the oil cooler crossbar. Afterward,
reinstall the crossbar.
On some
FMTVs, the
cab support
assembly (it
looks like an
upside-down U) can move toward the
rear of the truck enough so that the
latch assembly mounted on it doesn’t
cleanly contact the catch bracket.
Not only won’t the cab lock safely
in place, but the bracket and catch can
be damaged.
If the support assembly on your
FMTV moves so that the catch bracket
won’t fit into the latch, have a stick
or rod handy to hold the support as-
sembly steady as the cab lowers into
Family of Medium Tactical Vehicles . . .
The right way to lower the cab is to
turn the CAB TILT knob to LOWER.
Then pump the handle until the cab is
completely lowered and locked into its
latch. Make sure the latch button is IN
to show that the cab is locked in place.
place and locks. Then, report it to your
mechanic.
Backup Pumping Info
The backup (manual) hydraulic
pump raises
and
lowers the cab. Sur-
prised? You think the pump is just a
bottle jack, with a relief valve that you
can open to lower the load? Nope.
Backup
hydraulic
pump
raises or
lowers
cab
ow!
that's
gonna leave
a
mark
!
Screening protects oil cooler
Make
sure cab
catch
bracket
and latch
mate
correctly
hen you lower an FMTV cab us-
ing either the air hydraulic system or
the backup hydraulic pump, keep an
eye on the cab catch bracket assembly
as it nears the latch assembly.
hey!
somebody
pay attention
to
me
! my bracket's
not connected
right
!
PS 559
3
JUN 99
Back to Top Back to Top
