Jet JTM-949EVS4, Operating Instructions And Parts Manual

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Figure 8
9.9 Feed trip cam lever
The Feed Trip Cam Lever (A, Figure 9) is located on left
side of head behind the Manual Fine Feed Handwheel
(B, Figure 9). It engages the overload clutch on the pinion
shaft when positioned to the left. The
Feed Trip Cam
Lever stays engaged until Quill Stop (C, Figure 12)
comes in contact with Micrometer Adjusting Nut (A,
Figure 12) forcing it to drop out automatically, or until it is
released manually by engaging the lever to the right.
Figure 9
9.10 Feed direction control
The Feed Direction Control (B, Figure 10) determines
whether the power feed will move up, down, or not move
at all. The position of knob depends upon direction of
spindle rotation (see the
Motor Switch section). Position
of the control may be changed with the system stopped
or running. If the control does not engage easily, move
fine feed handwheel (A, Figure 10) back and forth to aid
engagement.
If spindle is rotating clockwise, in is downfeed; out is
upfeed. If spindle rotation is counterclockwise, out is
downfeed; in is upfeed. Neutral position is between in and
out position.
It is recommended that Feed
Direction
Knob be left in neutral
position when not in use.
Figure 10
9.11 Coarse feed handle
The Coarse Feed Handle (A, Figure 11) is located on
right side of head. The Coarse Feed Handle is used for
non-precision drilling operations and for moving quill to a
specific depth. A return spring will retract spindle
automatically once handle is released.
9.12 Quill lock handle
The Quill Lock Handle (B, Figure 11) is located on right
side of head. Rotate handle clockwise to lock quill in
desired position. Rotate handle counter-clockwise to
release.
Figure 11
9.13 Micrometer adjusting nut
The Micrometer Adjusting Nut (A, Figure 12) is located on
front of head. Use for setting specific spindle depth.
Secure with
lock nut (B, Figure 12).