PS Magazine - TB 43-PS-743

PS, The Preventative Maintenance Monthly

ISSUE 743

OCTOBER 2014
PS Magazine - TB 43-PS-743 - Page 9 of 33
14
PS 743
OCT 14
15
PS 743
OCT 14
M
echanics, when you order a new mud fap hanger bracket kit, NSN 5340-01-383-
2457, For your palletized loading system (PLS) truck, don’t be surprised iF the leFt-
and right-hand brackets you get are a little longer than the originals.
These brackets are now made by two diFFerent vendors. The brackets made by the
second vendor are about three inches longer than the originals.
IF you receive the longer brackets, you’ll need to modiFy them. Just cut oFF the last
three inches oF both brackets. Then remove one clip From each bracket so that only
three clips remain. Weld the end clip fush to the end oF the hanger.
t
he old, one-piece hydraulic hose, NSN 4720-01-567-
7068, shown as Item 56 in Fig 802 of TM 9-2320-319-
13&P in IETM EM 0298 (Mar 10), is no longer available
for your PLS. You must now order the hose as two
separate pieces, one metal and one rubber.
NSN 4710-01-566-4665 gets the metal hose. How-
ever, there is no NSN available for the rubber hose
(PN 3808531). You’ll need to order it directly from
Oshkosh. Call 1-800-392-9921 or email:
partssales@defense.oshkoshcorp.com
Dear Master Sergeant Half-Mast,
We’re having some serious problems installing Hawker batteries in
our M939A2-series 5-ton trucks.
When our mechanics put Hawker batteries in those trucks, the
voltage gauge maxes out. A mechanic from a nearby shop said they
had the same problem, but their vehicle’s alternator was fried, too!
Do you have any idea what’s causing these problems?
MSG P.L.
Dear Master Sergeant,
Sure do. The problem is with the old 60-amp alternator used on
those trucks. They can’t handle the power from the Hawker batteries.
The Fx is to have your mechanic replace the old alternator with the new
140-amp alternator, NSN 2920-01-371-6064. That’ll stop the issues with
the Hawker batteries.
If you ever have problems with the 140-amp alternator
after it’s installed, don’t replace it. You can get a repair kit
M1074, M1075 PLS…
Mud
Flap
Hanger
Kit
Flap
M1074A1 and M1075A1 PLS…
How to Get Two-Piece Hydraulic Hose
M939A2-Series 5-Ton Trucks…
Metal hose,
Rubber hose,
PN 3808531
Cut off last three inches of bracket, remove tab and weld it to end
hey! my mud
flap bracket
is
longer
than yours!
you’re
right!
what’s
goin’ on?
calm down, you tWO.
once the longer one’s
modified, they’ll be
exactly the same!
so, how are
those
new
Hawker batteries
treatin’ you?
i-it’s sh-sha-
shocking
how
puh-
powerful
they a-
are!
New Alternator Needed
with Hawkers
743 14-15.indd
1-2
9/3/14
10:36 AM
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