PS Magazine - TB 43-PS-601

PS, The Preventative Maintenance Monthly

ISSUE 601

DECEMBER 2002
PS Magazine - TB 43-PS-601 - Page 4 of 33
W
hen the tank’s powerpack goes back into place, the main hydraulic pump gets
reconnected.
Sounds easy as 1, 2 and 3. After all, the supply, return and case drain lines all have
quick-disconnects that make the job simple and easy.
W-e-e-ll, it’s a bit more complicated than that.
The case drain line sits back in a corner, so its quick-disconnect is hard to attach.
Yet a loose connection will cause an increase in hydraulic pressure and temperature
that could ruin the hydraulic pump.
So make sure the quick-disconnect is
firmly connected. Here’s how:
After you attach the case drain line,
grab the elbow portion and give it a good
upward pull. If the quick-disconnect is
not attached properly, it’ll pop free when
you pull it up. If it pops free, try again.
Keep repeating the procedure until the
quick-disconnect is properly connected.
M2A2/M3A2, ODS Bradleys…
PS 601
DEC 02
4
M1-Series Tanks…
Firmly Connect Quick-Disconnect
Case drain line pops loose
if not attached properly
I installed
new 1w17 cable,
but it’s
too
short!
MAYBE WE
CAN SPLice in
a piece of the
old cable.
no, what
you
need
is
a
1w300
extension
cable!
what the
heck is that?
our case
drain line
quick-
disconnects
just popped
loose!
I shoud’ve
pulled
when I
connected!
Y
ou Bradley mechanics replace a lot of crushed 1W17 cables. The cables are
ruined by the hatch when drivers forget to plug them into their dummy jacks after
removing the night sight.
You’ve also probably noticed that a newly ordered 1W17 cable ends up about 2
feet short of reaching the dummy jack on A2 model Bradleys.
Some mechanics get around this by
splicing a piece of the old cable to the
new one. That can lead to a bad con-
nection and interference when using
the night sight.
A2 Bradleys need an extension—the
1W300 cable—to complete the con-
nection between the 1W17 and dummy
jack. Order the 1W300 with NSN
6150-01-426-2197. It’s Item 205 in Fig
140 of TM 9-2350-284-24P-1 (Feb 97).
Don’t
splice
1W17 cable
PS 601
DEC 02
5
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