DURKOPP ADLER 768 - 7 Pneumatic Connection; Completing the Hose Connections

7. Pneumatic connection
7.1 Completing the hose connections
The
class 768
pillar sewing machine is fitted as standard with the following pneumatic
equipment:
–
electro-pneumatic sewing-foot lift (FLP)
–
electro-pneumatic rapid stroke-adjustment system (HP)
For the operation of this pneumatic equipment the special sewing machine must be
supplied with absolutely dry compressed air.
CAUTION!
The pneumatic units are only guaranteed to function
properly if the supply pressure is between 8 and 10 bar.
The operating pressure of the special sewing machine
is
6 bar
.
Connecting the electro-pneumatic sewing-foot lift (FLP)
–
Complete the PU hose connection between throttle valve 1 and the cylinder 3.
Connecting the electro-pneumatic rapid stroke-adjustment system (HP)
–
Complete the PU hose connection from throttle valve 2 to the distributor cabinet at
the rear of the sewing-machine arm.
Compressed-air connection
–
Complete the PU hose connection between compressed-air connector 4 on the
frame 5 and the solenoid valve.
–
Connect the pneumatic units to the factory compressed-air supply with the
connection hose (Ø = 9 mm).
Pneumatic connection kit
A pneumatic connection kit for frames with compressed air-maintenance units and
pneumatic ancillary equipment is available under order no. 797 3031.
It contains the following items: - connection hose, 5m long, Ø = 9 mm
- hose nozzles and hose ties
- plug-and-socket connector
GB
31