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3-15-5
Choice of feed speed
Feeding speed is dependent on the spindle speed, material of work piece, tips of cutter
and diameter of cutter (Table 6). With this machine, 12 steps of cutting feed and rapid feed
are carried out from the feed box which is under the side of saddle.
Push the button (Fig.8 (8)) to start the table longitudinal feed motor.
Move lever (Fig.18 (9)) to position A, B or C Dependent upon feed range required and
move lever (Fig.18 (8)) to the position for the particular feed rate required. It is not necessary
to stop the feed motor when changing the feed rate.
"WARNING"
(1) Don't change feeding speed if table is moving.
(2) Before stopping the spindle or when the table auto feed is not used push back
the feed engagement lever (Fig.18 (4)(5)(7)) to neutral.
3-15-6
Operation of rapid traverse
This can be operated on any of the foregoing movements by having the feed motor
running which is independent of the main spindle motor and moving the lever whichever
direction engages the feed required into the correct position, and then moving lever (Fig.18
(6)) upwards until the appropriate distance has been moved. Then lever (Fig.18 (6)) should
be returned to its neutral position.
3-15-7
Backlash eliminator
The use of the backlash eliminator device allows" climb milling" to be carried out on
this machine. The backlash eliminator controller (Fig.18 (10)) is situated on the front of the
saddle.
When climb milling is to take place with the cutter revolving clockwise and the table
moving from right to left, the backlash eliminator control should be rotated counter -
clockwise.
To set the backlash eliminator turn the controller (Fig.18 (10)) in the appropriate
direction and at the same time rotate the table hand wheel continue turning the controller
(Fig.18 (10)) until resistance is felt at the table hand wheel.
Do not over tighten the backlash eliminator.
The table must not be put into rapid traverse when the backlash eliminator is engaged.
Chung Sing 20
VERSION: 2
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