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４．Adjustment for Pre-load

(1) Spring pre-load can be adjusted to rotate Stem.

When rotating, keep pulling Stem to Collet side

(Figure 4);

Rotating to "＋" direction (clockwise) = pre-load increase

Rotating to "－" direction (counter-clockwise) = pre-load decrease

(2) After adjusting pre-load, please check if Stem is

locked and cannot be rotated.

※ For the min. pre-load, rotate Stem to " － "

direction as much as possible and then rotate

it "＋" side and the point where is locked first

time, is the min. pre-load.

※ The relationship between the number of Stem

rotation and Spring pre-load is as below chart

(approx.).

Figure 4

Stem

ステム

Pre-load decreases

when rotating to

－ direction

Collet

コレット

The number of

Stem rotation

0(Min.)

4(Max.)

５．Replacement of Spring

When exchanging Spring depending on workpiece

material and burr, please follow below procedure to

replace it. Spring for exchange is option.

(1) Following the procedure of 「4．Adjustment for

Pre-load」, set pre-load the maximum value and

then detach Guide Shaft from Shank. (Figure 5)

Detach

Pre-load the max. value. If loosening

Guide Shaft by force, it may cause the

Caution

tool broken.

Figure 5

Guide Shaft

Pre-load increases

when rotating to ＋

direction

Pre-load [g]

Spring (Standard)

120

320

520

720

920

Guide

Shaft

after

Shank

(2) Detach C-shape Stop Ring inside Stem. For

detaching, please use the tool for C-shape Stop

Ring (for Hole, size: No.1)

(3) After loosening Spring Receiver inside Stem,

Spring can be taken off. When detaching Spring

Receiver, please pay attention not to lose Steel Ball

2pieces. (Figure 6)

Figure 6

Caution

(4) After Spring is replaced, attach Steel Ball and

Spring Receiver to Stem, and then put C-shape

Stop Ring. The recessed side of Spring Receiver is

toward Spring.

(5) Using Guide Shaft, contact Spring Receiver to

C-shape Stop Ring, and then assemble Guide

Shaft to Shank. (Figure 7)

Caution

６．Maintenance

(1) When this holder is maintenance, please follow 「５．

Replacement of Spring」 and disassemble (Figure

5～7).

setting

(2) After Stem is cleaned, add Spindle oil (VG10 or

less), etc. to sliding surface. (The oil should be

low-viscosity.) Then, assemble the tool.

Caution

Remarks

This tool cannot be guaranteed for all process. Depending on the

situation, change the processing parameter and adjust it. We cannot

take any responsibility for any loss or consequential damage incurred

by using this product.

C-shape

Spring

Stem

Stop Ring

Spring Receiver

Steel Ball (2pcs)

Steel Ball 2 pieces are assembled to

Spring Receiver. Please be careful not to

lose then when it's dismantled.

Contact C-shape Stop Ring

Figure 7

and Spring Receiver

Before assembling Guide Shaft, Spring

Receiver has to be contacted to C-shape

Stop Ring. If assembling Guide Shaft by

force, it may cause the tool broken.

If this holder is not used long time, the

sliding surface may be stuck and the

floating structure does not work properly.

After long term of no use, please

maintenance the tool at first, and then

use it.