PS Magazine - TB 43-PS-563
PS, The Preventative Maintenance Monthly
ISSUE 563
OCTOBER 1999
M9 Armored Combat Earthmover . . .
Dust Cap Stays Put
The ACE’s NATO slave receptacle
becomes a water bucket when it’s left
uncovered.
The receptacle is mounted straight
up—that means it will hold water if
the cap’s missing. Water corrodes the
receptacle’s metal contacts.
If ice forms in the receptacle, you
won’t be able to connect the cable to
slave start a dead vehicle. The ice could
crack the insides, too.
ready
to go, big
fella?
keep me
capped!
gr-rrr!
lemme at
it!
Remove
access
plate to
release
trapped
water
PS 563
23
OCT 99
PS 563
22
OCT 99
Hold until no more air comes out
So do your ACE a favor by making
sure the dust cap is in place on the
receptacle. If it’s missing, have your
mechanic replace the cap and cord as-
sembly with NSN 5340-01-059-0114.
Until the assembly comes in, tape over
the receptacle.
Sponson Fording Reminder
Water can get past leaky access plates
during fording and fill the ACE’s spon-
sons with water. During cold weather,
trapped water can freeze, cracking the
sponsons, or damaging the apron’s hy-
draulic hoses and connectors.
So have your mechanic remove both
left and right hydraulic access plates
and then use sealing compound, NSN
8030-00-081-2339, on the self-locking
screws when remounting the access
plates. That keeps ’em good and tight—
and keeps water out.
If you see any bulges or stress cracks
near the access plates, report them.
perators, part of your job is to make
sure your ACE can move mountains of
dirt and sand when it has to. So, fol-
low the PMCS in TM 5-2350-262-10
and these PM pointers before the ve-
hicle leaves the motor pool.
Drain Air Tanks
Temperature changes let condensa-
tion form in the vehicle’s brake sys-
tem. Water leads to rust and corrosion
in brake valves and cylinders, which
leads to brake failure.
So keep ACE brakes braking by
draining air tanks daily. Hold the valve
open until air stops escaping. That
keeps moisture from stopping you cold.
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