HEIDENHAIN VT 121 Operating Instructions Manual page 44

To use two 6 mm pressure tubes:
Route the pressure tubes based on the mounting
variant
Remove the filler plug from P1
Attach the threaded plug connection for the 6 mm tube
to P1
Replace the threaded plug connection at P2 for the
8 mm tube with the threaded plug connection for the
6 mm tube
Connect the product to the compressed air unit via the
P1 and P2 threaded plug connections
Further information: "Accessories", Page 36
44
6 Servicing and maintenance
6.1 Overview
This chapter describes the general maintenance work on
the product.
The following steps must be performed only by
qualified personnel.
Further information: "Personnel qualification",
Page 34
This chapter contains a description of
maintenance work for the product only. Any
maintenance work on peripheral devices is not
described in this chapter.
Further information: Manufacturer's
documentation for the respective peripheral
devices
HEIDENHAIN | VT 121 | Operating Instructions | 03/2022