PS Magazine - TB 43-PS-558
PS, The Preventative Maintenance Monthly
ISSUE 558
MAY 1999
PS 558
7
MAY 99
PS 558
6
MAY 99
nce you’ve finished winching op-
erations, you need to flip three switches
to make sure your M1089 wrecker’s
batteries don’t run down before your
next mission.
TM 9-2320-366-10 doesn’t point out
that both main winch speed switches
on the remote control panel must be
M939-Series Trucks . . .
Family of Medium Tactical Vehicles . . .
If you leave the speed switches set
to HI and the selector switch set to
REMOTE CONTROL, battery power
continues to go to the remote control
panel. That can kill your vehicle’s
batteries.
Until the -10 is updated, make a note
so your batteries don’t come up short
at the next start.
Switch
both main
winches to
LOW at
shutdown
...WRECKER CONTROL PANEL
set to LOW at shutdown. In addition,
the TM fails to note that the STATION
SELECTOR switch on the fixed con-
trol panel must be set to WRECKER
CONTROL PANEL.
here's what
killed
your
battery
.
the
winch selector
switch
was left
on
remote
...
...and i'll bet
the
winch speed
switches
were
left on
hi!
i'm not
sure which
bottle
gets this
alcohol
, master
sergeant.
that's a
common problem
that you can
prevent
by
labeling
the
bottles!
ome folks don’t know the difference between
the windshield washer bottle and the alcohol
bottle on M939-series trucks.
The windshield washer bottle contains wind-
shield washer fluid for cleaning the windshield.
The alcohol bottle contains alcohol to keep wa-
ter in lines from freezing.
Putting alcohol in the washer bottle, or washer
fluid in the alcohol bottle could cause problems.
Alcohol might clean the windshield, but it’s flam-
mable. Washer fluid won’t dry moisture from air
lines; in fact, it adds moisture.
If you really can’t tell which bottle is which,
use a marker to label the alcohol bottle (use a
large A) and the windshield washer reservoir (use
a large WW).
Switch STATION SELECTOR to.
..
Alcohol bottle
Windshield
washer bottle
PS 558
7
MAY 99
PS 558
6
MAY 99
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