00197490-03_SM_CP20-P-M2_EN保养维护 - 第73页
8 Return unit and return cylinder 8.1 Replacing the return unit Service Manual SIPLACE SpeedStar (C&P20 P / C&P20 M2) 03/2018 73 Installation ► If you loosened the screw fastening the driver lever: Fit the driver…
8 Return unit and return cylinder
8.1 Replacing the return unit
72 Service Manual SIPLACE SpeedStar (C&P20 P / C&P20 M2) 03/2018
Torque
Fig.111: Screw fastening the driver lever
1. Screw fastening the driver lever
Torque: 1.15 Nm
Preparation
► Remove the head from the machine. For details about removing and fitting the placement
head, refer to the service manual for your machine.
Fit the head on the head mount [03056231‑xx].
► Make sure that the component sensor protective cap is fitted.
1.1.3 "Safety instructions for the component sensor" [}6]
Removal
Fig.112: Pulling the cover off
► Pull the cover(1) off the intermediate distributor.
The cover is fixed by four press studs on the stay
bolts.
NOTICE!
Older heads may not have this cover yet.
.
Fig.113: Dismantling the return unit
► Remove the two screws(1) fastening the return
unit and then carefully pull the return unit slightly
out of the head.
► Unplug all electrical and pneumatic connections.
If necessary, mark their positions to make clear
assignment easier later on.
8 Return unit and return cylinder
8.1 Replacing the return unit
Service Manual SIPLACE SpeedStar (C&P20 P / C&P20 M2) 03/2018 73
Installation
► If you loosened the screw fastening the driver lever:
Fit the driver lever fully onto the return cylinder pin and then tighten the fastening screw with a
torque of 1.15 Nm.
Make sure that the return cylinder, the holder and the driver lever are all parallel.
► Restore all electrical and pneumatic connections.
Note: the connector can not be plugged in later.
► Fit the return unit with the holder as far as the end stop.
Fully connect the holder and then tighten the two fastening screws.
Fig.114: Inspection checks
► Perform the following checks:
– Make sure that there is no gap (A) between
the pneumatic cylinder (1) and the holder(2).
– The driver lever must lie against the Z axis.
– Check that the star can be revolved.
– Check the distance(B) between the driver
lever(3) and the rotor(4) of the Z motor with a
feeler gauge. The distance should be approx.
0.5 mm when the Z axis is pushed upwards.
► If there are any problems, go through the afore-
mentioned steps again.
► Follow the removal instructions in reverse order for further installation. Also observe the fol-
lowing instructions:
NOTICE
Installation instructions
► Fasten the cable with cable ties, if needed.
8 Return unit and return cylinder
8.2 Replacing the return cylinder or return cylinder holder
74 Service Manual SIPLACE SpeedStar (C&P20 P / C&P20 M2) 03/2018
8.2 Replacing the return cylinder or return cylinder holder
Parts
●
Return cylinder [03007696-xx] or
Holder [03007695-xx]
Overview
Fig.115: Overview of return unit
1. Return unit assembly
2. Return cylinder
3. Return cylinder holder
4. Driver lever
5. Solenoid valve
6. Compressed air connection
7. Electrical connection
8. Fastening screw for driver lever (4)
9. Fastening screw for "return cylinder holder"(3)
Preparation
► Remove the head from the machine. For details about removing and fitting the placement
head, refer to the service manual for your machine.
Fit the head on the head mount [03056231‑xx].
► Make sure that the component sensor protective cap is fitted.
1.1.3 "Safety instructions for the component sensor" [}6]
Removal
► Dismantle the return unit.
8.1 "Replacing the return unit" [}71]
► Remove the screw fastening the driver lever.
► Remove the screw fastening the "return cylinder holder".
Installation
► Fit the "return cylinder holder" and the driver lever.
Make sure that the return cylinder, the holder and the driver lever are all parallel. You may
need to place the return unit down on a level surface.
► Follow the removal instructions in reverse order for further installation.
Also observe the installation instructions in the following section:
8.1 "Replacing the return unit" [}71]
► Observe in particular the torques specified!