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 TM 55-1905-223-24-3
FIGURE 3-28. Timing Tool Travel.
(u) Tighten the thumbscrew to hold the gauge in position.
(v) Loosen the setscrew for the gauge dial, turn the dial so that the indicator is zero and tighten the
setscrew.
NOTE
Always rotate the crankshaft slowly.
Watch the piston travel indicator as you
rotate the crankshaft.
(w) Rotate the crankshaft in the opposite direction of engine rotation (counterclockwise), through TDC to
45 before TDC.
NOTE
This step is necessary to remove the gear train lash and to provide more accurate
indicator readings.
3-60
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