WABECO D4000 E, Руководство по эксплуатации, Страница: 43 / 48

43
When altering the feeds or thread pitches, proceed as follows:
1. Changing the feed from 0,085 mm to 0,16 mm
a. Loosen the fixing screw D of the change gear quadrant.
(First loosen the knurled screw at the front of the headstock and open the
protective cover. )
b. Loosen and remove the hexagonal nuts and washers from the bolts A and B.
c. Loosen the hexagonal bolts A and B. Remove the toothed belt connecting A and B.
Turn bolt B out of the cutter with the two tooth pulleys and take them out. Remove toothed
belt of drive disc to A.
d. Remove both tooth belt pulleys Z 14 from their bolts A and B and change them for tooth belt
pulley Z 18 or tooth belt pulley Z 20, respectively.
e. Mount bolt B, together with both tooth belt pulleys into the change gear quadrant again by
slightly tilting the bolt and screwing it into the square nut located behind the quadrant. Put on
the toothed belt connecting B and C, pull bolt B upwards imparting tension to the toothed
belt. Then, tighten bolt B. Put toothed belt of of drive disc on bolt A and from bolt A on bolt B.
f. Pull bolt A upwards until the toothed belt is under tension, then tighten bolt A. Move quadrant
to the front until toothed belt of drive disc is tensed to bolt A. Then tighten fixing screw D,
mount washers and nuts on A and B and tighten.
g. Close the cover of the headstock and tighten again the screw with hexagonal recessed hole.
2. Changing the feed from 0,085 mm to metrical thread pitch 1,0 mm
a.-c. Proceed exactly as already described under pos. 1 a-c. The procedure differs merely – as
described under 1b - in additionally taking away the hexagonal socket screw off bolt C.
d. Changing bolt and the tooth belt pulley Z 48 running on bolt C. First push bolt on bolt C, then
the tooth belt pulley Z 14.
Bolt B with totoothed belt will not be needed with thread cutting!
e. As the toothed belt Z14 is already on bolt A you do not have to make any changes. Move the
toothed belt from the drive disc to bolt A and from A to C..
f. - g. Proceed as described under pos. 1, f-g!
10
.
Applications
10.2.3 Altering the feeds or thread pitches