PS Magazine - TB 43-PS-628

PS, The Preventative Maintenance Monthly

ISSUE 628

MARCH 2005
PS Magazine - TB 43-PS-628 - Page 5 of 33
PS 628
MAR 05
6
M113A2-Series FOV…
Pivot steering reminder
Pivot steering reminder
PS 628
MAR 05
7
M109A6 Paladin…
hands
off
when
it comes
to the
pivot
steering
on your
carriers.
keep it
connected,
but
stay
clear!
here’s why…
so yourself and
others a
big
favor…
leave
the pivot steering
connected. then
leave it alone.
• Since the carriers no longer have swim capability,
you don’t need pivot steering for moving around in
the water. That’s always been the main use of pivot
steering.
• U-joints and the transmission case break when
pivot steering is used at more than 15 MPH or in any
drive range other than 1-2. Even at speeds under 15
MPH,
using
pivot
steering
tears
up
U-joints, the transmission and differential.
• To prevent damage and injuries, some mechanics
disconnect the pivot steering con-trols. That’s no
good! A loose horizontal rod can jam the steering
laterals. Jammed laterals mean no control over
the vehicle.
Leave pivot steering
connected, but keep
hands off!
Whaddya expect?
My M93 muzzle
velocity sensor is
jiggling around
like
crazy!
range control
says we missed
the target
completely!
Take
J
i
g
g
l
e
Out
of
M93
M
echanics, when you replace the Paladin’s weather curtain, make sure you reconnect
the curtain support, NSN 5340-01-371-3595, to the gun shield angle bracket, NSN 5340-
01-369-4657, right.
If you don’t, the top of the angle
bracket jiggles around. When the M93
muzzle velocity sensor is attached, the
bracket won’t provide a steady platform.
That leads to inaccurate projectile velocity
readings by the fire control system and
missed targets.
Keep the support and bracket tight
by always using new lock washers, NSN
5310-00-584-5272. Then snug down the
bolts, NSN 5305-01-396-0996, nice and
tight. That keeps the top of the angle
bracket secure and the rounds on target.
Loose bolts let angle bracket jiggle
Use new lock
washers when
securing curtain
support to
angle bracket
628.06-07(C)
1/25/05
11:36 AM
Page 1
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