PS Magazine - TB 43-PS-574
PS, The Preventative Maintenance Monthly
ISSUE 574
SEPTEMBER 2000
Don’t Forget Fan Gearbox
N
o matter how good your memory is, it’s easy to forget to check the oil level
in the fan gearbox—unless you follow the LO!
The gearbox sits far back in the engine com-
partment, so it’s easy to overlook. But, if the
oil level gets low enough, the bearings seize
up and the gearbox is ruined.
Then your vehicle is NMC until the gear-
box comes back from support for repair.
Oh, another thing to remember: The fan
gearbox is a
monthly
check—not daily like
the pointer says on Card
18 of LO 9-2350-261-12.
M113-Series FOV . . .
Hook the cable up first, then turn the
switches to ON.
To make sure the periscope is pow-
ered down and there’s no chance of
electrocution, always do the following
before
disconnecting the power cable:
1.
Make sure both switches are turned
to OFF.
2.
Wait at least 2 minutes after turn-
ing off the periscope.
3.
Make sure the image has disap-
peared from the periscope screen.
Even after following all three steps,
you should still play it safe. After dis-
connecting the power cable, don’t touch
the end of the connector or allow it to
touch any metal surfaces. Once the
cable is attached to the stowage recep-
tacle on the master switch panel, you
can breathe easy.
Never connect the cable to the peri-
scope while both the MASTER
SWITCH and IR POWER switch are
turned to ON. If you do, the current
may arc from the metal connector
you’re holding
to the periscope—a
potentially re-volting development.
...before connecting cable to periscope
hoo-boy!
what a
re-volting
development
this is!
take
the shock
out
of your
periscope
power
cable
.
...and
MASTER
SWITCH.
..
Oil level should be in center of sight glass
Turn off
IR POWER
switch.
..
rivers, unless you’re partial to
being fried, you better learn how to
install and remove the M19 or M19A1
infrared periscope power cable in your
vehicle.
Playing fast and loose with TM pro-
cedures can leave you with a burned-
up power supply. It can also leave you
seriously burned or dead from a jolt of
16,000 volts!
Before hookup, make absolutely sure
there are no rips, tears or bare wires on
the cable. If you spot any, report ’em.
Report damaged cable
PS 574
19
SEP 00
PS 574
18
SEP 00
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