PS Magazine - TB 43-PS-563
PS, The Preventative Maintenance Monthly
ISSUE 563
OCTOBER 1999
PS 563
11
OCT 99
PS 563
10
OCT 99
1.
Cut two 24-in pieces of
1
/
8
x 2-in angle iron.
Order by the foot with NSN 9220-00-277-4911
recker operations involve hard work and heavy metal, so your M984A1
wrecker is built tough to take punishment.
Except for the retract supply lines on some tow bar lift cylinders, that is.
The lines are on the bottom of the cylinders, where they get smashed a little bit
every time a towed truck’s bumper or hood bumps them. Eventually, they get
crushed and leak or burst during a lift.
Here’s how to prevent the constant
damage and eventual failure:
M984A1 HEMTT Wrecker . . .
2.
Place guards over lines so they don’t
cover cylinder check valves. Notched ends
butt against valves
3.
Hold guards in place with four
loop clamps, NSN 4730-00-908-6294
If your wrecker already has the guards, you’re good to go.
Tactical Vehicles . . .
Bunged-up
threads?
Wheel lift truck makes alignment easy
IF YOUR RETRACT
SUPPLY LINES LOOK LIKE
THIS
--HERE'S A
FIX
THAT CAN
HELP
.
echanics, what do bunged-up axle threads,
leaky axle seals and leaky axle bearings often
have in common with a sore back?
The answer: They’re the result of not get-
ting everything lined up when you wrestle a
truck’s wheel and hub assembly back onto an axle.
Head off wheel and axle damage as well as a sore back by using the wheel lift,
NSN 4910-00-554-5983, from the Common
shop sets.
The wheel lift picks up the wheel and hub
assembly and lets you line everything up
before you slide it into place.
Even with the lift, though, get a buddy to
help you. An extra pair of eyes can make
sure everything is lined up.
THIS
WHEEL LIFT
SURE IS A
BACK
SAVER
.
AND AN
AXLE THREAD
SAVER
.
Notch both pieces on one end
PS 563
11
OCT 99
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