PS Magazine - TB 43-PS-725
PS, The Preventative Maintenance Monthly
ISSUE 725
APRIL 2013
21
PS 725
APR 13
Radar Reminders
Make sure the AN/MPQ-65’s shroud
is secured completely for storage and
for operation.
First, properly fold the
shroud for storage. If it’s bunched up,
it will be damaged. Then ensure all the
shroud straps are tight and buckled. If
the shroud is not secured completely
before lowering the antenna, its frame
can punch holes in the top of the radar.
Water can then get in the radar and cause
expensive damage.
Also make sure the shroud straps are
securely buckled for operations. If the
shroud ±ips back down while the radar
is radiating, it could catch ²re from the
transmitted radio frequency.
Don’t rush the manual drive for the main array.
Some Soldiers attach a power
tool to the manual drive to try to make it move faster. All that does is destroy the
manual drive’s gears. Crank the drive with a wrench like you’re supposed to.
EPP
Easy does it when adding oil to
the electrical power plant (EPP).
If you over²ll the EPP, a gasket will
be blown and you’ve got a major
oil leak. Check the dipstick to see
if the EPP needs oil and how much.
Then use an oil dispenser to add
just the right amount. If you use
a funnel and a 5-gal jug, you will
have trouble getting it right.
Add fuel just to the bottom of
the Fll neck.
If you push fuel past
the bottom of the neck, it can leak
from heat expansion and that’s a ²re
hazard.
Check the rubber hinges on the
generator access doors for dry
rot.
If the hinges start to fall apart,
the doors won’t shut correctly and
then rain can get in the generator.
Generating PM
Adjust
the
voltage,
hertz
and
governor knobs like WP 0044 00 in TM
9-1440-600-10 says.
You’re not going to
help the generator run better by randomly
adjusting voltage, hertz or the governor.
If you get the generator’s settings wrong,
you’ll start getting voltage faults.
Check the oil and coolant before
operating.
The generator is bad on oil
consumption. It will often need more
oil if it’s been operating for a while. If
the coolant is often low, the radiator or
the water pump is leaking. Tell your
repairman.
Check Out Outriggers
Look for cracks in ball joints.
Hairline cracks regularly develop in the
ball joints. Eventually they can become
so bad that the ball joint splits. Then
the outrigger has trouble going up and
down. Check all the outrigger ball joints
at least monthly for cracks.
Make sure the limit switches limit.
If
a limit switch has stopped working or is
adjusted wrong, the outrigger or its motor
could be damaged during operations.
The easiest way to check them is to
just raise and lower the outrigger while
watching the limit switches. Also make
sure they are connected to the N and C
connections, not the 0. Never bypass the
interlock circuitry for the outriggers.
If generator coolant is often low,
radiator or water pump is leaking
Cracks in outrigger ball joints?
Outriggers
connected
to N and C
connections?
N
Shroud must be secured for
both storage and operations
hoLD on, there!
my EPP only
Needs a
quart,
not
all that!!
KeEp reading
for More ways
to hELp your
Patriot!
C
725 20-21.indd
1-2
2/22/13
3:58 PM
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