Jakobsen SJ24, Руководство по эксплуатации

Страница: 15 / 24

SJ 24
9
1) The multiple revolution selector (41) counts the revolutions
of the handwheel (42) and is operated manually.
The digits on the scaleknob (41) directly show the amount Qf
vertical travel adJustable from 0,2 to 3,0 mm (.01" - .16").
With the scaleknob (41) on infinite (�) the autqmatic down­
feed will continue without automatic stop.
2) The adjustable dial (43) is graduated in 0.002 mm (.0001").
Each revolution of the downfeed handwheel (42) will produce
0,2 mm (.01") downfeed.
To turn the adjustable dial (43) press the disengaging lever
(44) upwards, while keeping the downfeed handwheel (42) in
same position (see illustration).
If you want to grind off a total of o,l mm (.005 in.) (half a
revolution of the downfeed handwheel) then disengage the adju&�­
able dial (43) as described above, set the dial on 0,1 mm (.005
in.) and the scale-knob (41) at "O".
If less then 0,2 mm (.01") is to be removed, set the scale-knob
at zero.
If it is desired to grind off a total of 0,5 mm (.0025") auto­
matically, set the scaleknob (41) on 0,4 (.02 in.) and the re­
maining 0,1 mm (.005") by means of the adjustable dial (43) as
mentioned above. The two downfeed handwheel revolutions account
for 0;4 mm- (.12") stock removal, and the amount set on the ad­
justable dial for the remaining 0,1 mm {.005").
Manual Vertical Downfeed
The manual vertical feed is operated by the handwheel (42). One
revolution of the handwheel equals 0,2 mm (.01") downfeed. Re­
member to set the engaging lever (45) in front position.
Rapid Vertical Feed
The_rapid vertical traverse of the spindle headstock is operated
b�,. the wheel up and down switch ( C)
NOTE: Ensure the engaging lever (45) is disengaged (in front
-- position) when u�ing·the rapid vertical traverse.
The engaging lever (45) has two positions:
Forward position: manual downfeed, and rapid
vertical feed.
Rear position: hydraulic automatic downfeed.
The depth of each cutting is variable from 0.002 - 0.03 mm
(.0001" - .001") and is adjusted by means of the downfeed
increment adjusting knob (46).