TM 5-3895-383-24
2.
Push on the front end of the crankshaft so the end play
(free movement on the centerline) is removed. Keep
the crankshaft pushed back until the measurements are
finished.
3.
Adjust the dial indicator to zero.
4.
Turn the crankshaft 360 degrees and watch the dial
indicator. A total indicator reading of 0.00 to 2.03 mm
(.000 to .080 in) is acceptable.
Viscous Damper (If Equipped)
If the damper is leaking, bent or damaged, or if the bolt holes in
the
damper
are
loose
fitting,
replace
the
damper.
Replacement of the damper is also needed at the time of a
crankshaft failure due to torsional forces.
Viscous Vibration Damper
(1) Crankshaft. (2) Weight. (3) Case
NOTICE
Inspect the viscous damper for signs of leakage or a
dented (damaged) case (2). Either condition can cause
weight (2) to make contact with case (3) and affect damper
operation.
Electrical System
Test Tools For Electrical System
Tools Needed
4C4911
Battery Load Tester
1
8T900
AC/DC Clamp-On Ammeter
1
6V7070
Heavy-Duty Digital Multimeter
1
or
6V7800
Digital Multimeter
1
Most of the tests of the electrical system can be done on the
engine. The wiring insulation must be in good condition, the
wire and cable connections must be clean and tight, and the
battery must be fully charged. If the on-engine test shows a
defect in a component, remove the component for more
testing.
The service manual Testing And Adjusting Electrical
Components, REG00636 has complete specifications and
procedures for the components of the starting circuit and the
charging circuit.
4C4911 Battery Load Tester
4C4911 Battery Load Tester
The 4C4911 Battery Load Tester is a portable unit in a metal
case for use under field conditions and high temperatures. It
can be used to load test all 6, 8 and 12V batteries. This tester
has two heavy-duty load cables that can easily be fastened to
the battery terminals, and a load adjustment knob on the top
permits the current being drawn from the battery to be adjusted
to a maximum of 1000 amperes. The tester is cooled by an
internal fan that is automatically activated when a load is
applied.
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