TM 9-4940-568-34
7-11
Crosshatch angle is a function of
the drill speed and how fast the
hone is moved vertically. Drill
speed should be 300 to 400 rpm.
Failure to follow this procedure
could cause damage to
equipment.
NOTE
Vertical strokes must be smooth,
continuous passes along the full
length of the bore.
(6)
Inspect cylinder bore after 10 strokes.
(7)
If drill speed is too slow or vertical stroke is
too fast, crosshatch angle lines will show a
70-degree angle.
(8)
If drill speed is too fast or vertical stroke is
too slow, crosshatch angle lines will show a
10 degree angle.
Be extremely careful not to hone
the bore out of specification.
Refer to Step (9) of
cleaning/inspection for proper
specifications. Failure to follow
this procedure could cause
damage to the equipment.
(9)
A sizing hone can be used to remove minor
grooves or to correct minor out of taper.
