Sharp SH-920 Instruction Manual page 25

and again.
7.6.9 Please don't touch the directional control arm either by hand or by
something else during table movement.
Automatic cross feed traverse (Intermittent)
8.
8.1 With the following operations, it needs that the table longitudinal traverse
must be in actuated condition.
8.2 Turn change-over switch SA3 to left and then release the switch
8.3 SA31 for automatic operation, the cross feed will soon be actuated and the
wheelhead will move forward to the operator.
8.4 Turn SA3 to right, wheelhead will automatically move backward to rear side.
8.5 Automatic cross feed traverse will reverse its direction when the limited
switch LS3 or LS4 are actuated by trip dogs. (Fig.6)
8.6 The magnitude of cross feed is infinitely variable by the regulating
knob "RP32 ".
8.7 By turning switch "SA31" to left, or pressing down the limit switch LS1, the
automatic cross feed traverse can be interrupted at once.
Automatic cross feed traverse (Continuous)
9.
9.1 This function is available whenever the table longitudinal traverse is in
actuation or not.
9.2 Turn selector switch SA31 to left position.
9.3 Turn SA3 to left, the wheelhead will move approach to the operator.
9.4 Turn SA3 to right, the wheelhead will move backward to the rear side.
9.5 This function will be stopped if limit switch LS1 or LS2 is pressed by stopper.
But LS3 and LS4 are not able to reverse the direction or stop this function.
10. For criss-cross grinding (Optional)
10.1 Turn the selection switch SA31 to right.
10.2 Turn the selection switch SA3 to right (or left), with the hand released and
the criss-cross travel will be engaged.
10.3 Adjust the knob RP32 for the rate of feed movement.
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