PS Magazine - TB 43-PS-566
PS, The Preventative Maintenance Monthly
ISSUE 566
JANUARY 2000
PS 566
8
JAN 00
echanics, when you first go out to troubleshoot an electric winch that’s
reportedly busted, take a hard look at its ground point.
That ground point is usually covered in dirt or mud, which means the last time
it was checked for a tight,
clean
connection was not yesterday.
Because electric winches pull a lot of amps in operation, a clean, tight ground
connection is required for operation.
Remove the dirt or mud and disconnect the ground strap. Clean the strap and
the mounting stud, making sure
that all corrosion is removed.
Use a bristle brush, any
corrosion-removal compound,
rags and lubricating oil to
prevent rust’s return. Then
reinstall the strap, tighten
the nut and test the winch.
Chances are, the report
that the winch was busted was a bust itself.
t’s a tough job, but you
can
mount the exhaust manifolds on a HMMWV
engine right, tight and in one piece.
What it takes is patience and experience. Here’s what you need to know:
Make sure you have enough room to work so the manifold can be mounted
properly on the engine head. Remove everything the TM tells you to remove so
you have plenty of elbow space.
Working in tight spaces can create leaks and broken flanges as you try to make
things fit where there’s no room.
Clean the head mounting surface and the manifold mating surface. Remove
all traces of old gasket mate-
rial. Leftover gasket material
leads to seal leaks and a repeat
job you don’t need.
Finger-tighten all screws and
the alternator stud, and then
torque them to 25–33 lb-ft.
Alternate the screw and stud
tightening. This reduces the
strain on manifold flanges and
prevents leaks. Flanges often
break when each screw is tight-
ened completely before others are snugged up.
Electric Winches . . .
Clean mounting surface.
..
the
tm
tells
you what to remove
to
get
the
space
you need.
✤
✤
✤
wow!
you replaced
the winch
already
?
nah!
i just
cleaned
the
ground point
.
that's all
it needed.
... and tighten screws
finger-tight, then torque ’em
Make sure connections
are clean and tight
PS 566
9
JAN 00
HMMWV . . .
rats!
i can't
mount
the
manifold
. there's
not enough
room
!
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