PS Magazine - TB 43-PS-578
PS, The Preventative Maintenance Monthly
ISSUE 578
JANUARY 2001
rewmen, without enough lube in
the race ring assembly, the turret on an
M1-series tank will come to a grinding
halt.
You should lube the race ring
monthly, but if you work in an area
where sand and grit are a problem, you
may need to do it more often.
M1-Series Tanks . . .
ank mechanics, you’ve got to plan ahead
if you want to replace a bad in-tank fuel
pump, NSN 2910-01-341-4647 or 2910-01-
083-3153.
The new fuel pump doesn’t come with a
fuel tank gasket, NSN 5330-01-083-3070.
Without the gasket, you won’t be able to
install the pump.
So plan ahead. Order the gasket when you
order the new pump. Then you’ll have ev-
erything you need to get that vehicle up and
running.
Of course, you should lube the race
ring before sending the plug off for
modification. Just remember to never
traverse the turret unless either the
lubing tool or the ball insert plug is in
place.
Lube race ring monthly
Some of you are still using the race
ring lubing tool made by your support
shop. That means removing the ball
insert plug in the inner race bearing
ring and installing the tool before you
can lube.
MWO 9-2350-200-30-9 changes all
that. The MWO authorizes DS to
modify the ball insert plug to make it a
permanent
lubrication fitting.
Take a look at the plug on the inner
race bearing ring. If it doesn’t have a
No grease fitting? Send plug to DS
Modified plug stays in race ring
grease fitting, get the MWO applied
now
.
Before you send the plug off to DS,
though, tag it with the tank’s serial
number. That way each tank gets its
original plug back. Each plug is ma-
chined to exactly match its race ring.
Running your M1 with a plug from
another tank will damage ball bearings,
springs and the race assembly.
If you forget, the springs jam up,
the bearings fall out of the inner race
bearing ring and the tank is out of
commission.
If your tank has the new wire race
ring assembly, NSN 1015-01-433-
7999, don’t look for a ball insert plug.
This configuration uses standard grease
fittings instead.
ouch!
my
race ring
really needs
some
lube
!
if only
i could
find
your lubing
tool.
T
PS 578
17
JAN 01
PS 578
16
JAN 01
don't
forget my
gasket!
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