PS Magazine - TB 43-PS-569

PS, The Preventative Maintenance Monthly

ISSUE 569

APRIL 2000
PS Magazine - TB 43-PS-569 - Page 9 of 34
PS 569
17
APR 00
PS 569
16
APR 00
eed a new engine oil pres-
sure switch for your Bradley?
OK, but don’t order the one
called out in your parts TMs.
is supposed to bring a three-
terminal switch, PN 76579.
But because the wrong part
number (PN) was entered in
the supply system, you’ll get a
two-terminal switch, PN 76576, instead.
Until things are straightened out, get the
three-terminal switch with NSN 5930-
00-855-3938.
You’ll find the switch listed as Item 246 in
Fig 83 of TM 9-2350-252-24P-1. It’s also
found as Item 264 in Fig 99 and Item 263 in
Fig 100 of TM 9-2350-284-24P-1. Make a
note until the new NSN is added to the TMs.
ig 47 of TM 9-2350-256-24P-2 does a good job of listing the hydraulic hoses
and couplings for your recovery vehicle. But it doesn’t tell you where the hoses
go or which coupling each hose takes.
Items 119-125 in the diagram on Page 12-21 of TM 9-2350-256-20 show the
location of each hose. Use this chart to identify each hose and the coupling it
needs:
M2/M3-Series Bradleys . . .
M1A2 Tanks . . .
Scoping Out a Solution
M
echanics, installing a new commander’s periscope, NSN 1240-01-319-5340,
on an M1A2 tank takes a bit of care and effort. In other words, you don’t want to
do it again anytime soon.
Keeping moisture out of the periscope is the key to making it last. The
periscope seams are already coated with a thin bead of sealant, but it won’t keep
water out for long.
Before installing the new peri-
scope, run a
1
/
8
-in bead of sealant,
NSN 8040-01-331-7469, on all
upper seams. That creates an air-
tight seal that keeps the periscope
on the job for a long time.
You’ll find the new procedure on
Page 9-39 of TM 9-2350-288-20-2-4.
M88A1 Recovery Vehicle . . .
Keep this information handy until the TM can be updated.
Hose
Hose
Coupling
#
NSN 4720-
NSN 4730-00-
119
00-706-9126
200-0515
120
01-018-4899
496-2700
121
00-706-9091
200-0515
122
00-706-9141
541-9081
123
00-706-9138
090-9252
124
00-706-9114
541-9081
125
00-706-9107
200-0515
Fits hoses 119,
121, 125
Fits hose 120
Fits hose 123
Fits hoses 122, 124
hey!
this switch
is
one
terminal
short
!
hey!
i need some
new
hydraulic
hoses!
yeah, but
which hoses
? and
what couplings
do i order?
Add sealant on upper seams
to keep out moisture
to get three-terminal switch
PS 569
16
APR 00
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