HS50_advance_level 1_20200522_221201 (1) - 第127页
Studen t Guide HS-50 A dvanced I 06/200 2 Edition 5 DLM1 C&P Head 35 5. 4.2. 2 S t ar , fi tte d / DLM1 The star is f ixed to the dri ve shaft of t he star m otor (B) wi th three M3x8 hexagon -socket head screws (ite…

06/2002 Edition Student Guide HS-50 Advanced I
5 DLM1 C&P Head
34
5.4.2 Overview front part of the head
5.4.2.1 Front part, complete / DLM1
The front part is centered by two holes (B) into which the parallel pins of the back part engage.
The front is fixed to the back part with four M4x16 hexagon-socket head screws (item A). 5
5
Fig. 5.4 - 2 Structure of the front part / DLM1
(1) Casing / DLM1
(2) Forced air unit / DLM1
(3) RSF digital rotary encoder / DLM1 (beneath the board with the protective cover)
(4) Star drive, digital / DLM1
(5) Z-axis drive
(6) Protective shroud, front part / DLM1
(7) Raceway for the 12 ball bearings on the segments
(8) Snap jaws raising or lowering the sleeve

Student Guide HS-50 Advanced I 06/2002 Edition
5 DLM1 C&P Head
35
5.4.2.2 Star, fitted / DLM1
The star is fixed to the drive shaft of the star motor (B) with three M3x8 hexagon-socket head
screws (item A). 5
5
Fig. 5.4 - 3 Structure of the star
(1) Star
(2) Distributor plate for distributing the vacuum between the individual segments
(3) 12 O-rings
(4) 12 connecting hoses / DLM1
(5) 12 valve plungers, complete, SP-12
(6) 12 valves, SP-12
(7) 12 forced air inlets
(8) 12 sleeves
(9) 12 segments

06/2002 Edition Student Guide HS-50 Advanced I
5 DLM1 C&P Head
36
5.4.3 Dismantling / fitting the front part of the revolver head
5.4.3.1 Tools and equipment
– Set of DIN 911 Allen keys
– SITEST program
– Adjustment instructions
CAUTION Be careful with the glass scales in the sleeves. They are very fragile. 5
5.4.3.2 Dismantling the front part of the revolver head
➠ Switch the placement system off and secure it to prevent switching on again as described in
section 5.4.1
, page - 32.
➠ Remove the connecting cable plugs from sockets X9, X13, X14 on the head board (item 3 in
Fig. 5.4 - 4
).
➠ Push the collar of the compressed air coupling (item B in Fig.5.4 - 5) for the air blast unit in the
direction indicated by the arrow. Detach the black compressed air hose and pull it out of the
cable clip (item C in Fig. 5.4 - 5
).
➠ Pull the hose for the placement circuit vacuum check out of the cable clip.
➠ Loosen the four M3x16 hexagon socket head screws (item A in Figs. 5.4 - 4 and 5.4 - 5).
CAUTION When you loosen the last screw, hold the revolver head so that it does
not accidentally drop off the back part. 5
CAUTION When you remove the front part of the revolver head, make sure that
the star is pivoted roughly 15° away from the vertical sleeve position. Otherwise the valve
plunger will remain attached to the valve actuator. 5
➠ Lift the front part of the revolver head away from the parallel pins on the back part and place
on a soft, clean surface.