Bedienungsanleitung Huvema HU 550 VARIO (Seite 17 von 32) (Englisch)

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CHANGES AND TYPING ERRORS RESERVED CHANGES AND TYPING ERRORS RESERVED

A. Carriage lock (fig. 12): Turn the screw (A) clockwise to tighten to lock the carriage. Turn counter-clockwise

and loosen to release the carriage.

Note!

The bolts must be loosened, before automatic feed may be activated.

B. Longitudinal slide travel (fig. 13): Turn the hand wheel clockwise to move the apron toward the tailstock.

Turn the hand wheel counter-clockwise to move the apron toward the headstock.

C. Half nut engage lever (fig. 13): Push the lever down to engage, push the lever up to disengage.

D. Hand wheel of cross slide (fig. 13): Turn the hand wheel clockwise to move the cross slide toward the rear of

the machine.

E. Compound rest traverse lever (fig. 13): Rotate clockwise or counter-clockwise to place in the right position.

F. Tool post clamping lever (fig. 13): Rotate the lever counter-clockwise to release, clockwise to clamp. The tool

holder can be turned after the lever has been rotated counter-clockwise.

G. Tailstock clamping screw (fig. 14): Rotate clockwise to clamp, counter-clockwise to release the tailstock.

H. Tailstock spindle clamping lever (fig. 14): Rotate clockwise to lock the spindle, counter-clockwise to release.

I. Tailstock spindle hand wheel (fig. 14): Rotate the hand wheel counter-clockwise to retract the spindle, clockwise

to advance it.

J. Set screws tailstock (fig. 14): Three set screws are located on the tailstock base to off-set the tailstock for cutting

tapers. Loosen the screw at the end of the tailstock. Loosen 1 screw at the side and tighten the other screw until

the right set-off on the scale is reached. Tighten the screw.

7. operaTion

7.1. replacinG 3-jaw chUck

The 3-jaw chuck is mounted to the chuck flange by means of 3 set screws and nuts (A, fig. 15). Loosen these screws

and nuts if the jaw chuck has to be replaced. Make sure that the surfaces of the new jaw chuck and the chuck flange

are clean before u mount the new jaw chuck with the nuts and screws.

7.2. Tool seT-Up

Place the tool in the tool holder and clamp it firmly. When turning, the tool has the tendency to bend under the

cutting force generated. For best results, tool overhang should be kept to a minimum of 9.5 mm or less.

The cutting angle is correct when the cutting edge is in line with the center axis of the work piece. The correct height

of the tool can be achieved by comparing the tool point with the point of the center mounted in the tailstock. If

necessary, use steel spacer shims under the tool to get the required height (fig. 16).

7.3. chanGinG speed

• Loosen the 2 fastening screws (B, fig. 17) and remove the cover.

• Loosen the nut (C, fig. 18) on the tension pulley holder (D) and reduced the tension of the V-belt (E).

• Adjust the V-belt to the right position and choose the right tension.

• Tighten the nut again.

• Replace the cover and tighten the fastening screws.

7.4. TUrninG

7.4.1. ManUal

Turn the hand wheels of the apron, cross slide or tool slide for longitudinal and cross travel (fig. 19).

7.4.2. aUToMaTic feed (lonGiTUdinal TraVel and ThreadcUTTinG)

• Use the knobs (A, fig. 20) to select the right feed direction and speed.

• Use the table (B) to select the correct feed speed for threadcutting. Replace the set of change gears if the

required feed or thread pitch cannot be obtained.

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