Burkert 2000 Mode D'emploi page 14

Installation and commissioning
Lightly grease spindle extension (silicone grease OKS 1110-0)
Screw spindle extension (with Allan key SW 8) onto actuator spindle (M
16x1.5) and secure with Loctite
Place guide spindle over spindle extension, using assembly sleeve if
necessary
Type 2012 Control Function A:
Screw stop onto guide spindle and secure with Loctite (e.g. Loctite 274,
medium hard)
ATTENTION!
Type 2030 Control Functions A, B and I and Type 2012 Control Functions B
and I:
the stop is not required
Screw guide spindle with spindle extension into actuator (SW 36)
Screw lower nut onto guide spindle
Position bridge on spindle extension and fix with cap screw (cap screw M
16x45, Allan key SW 12). Secure cap screw with Loctite.
Screw upper nut onto guide spindle
Set max. and min. stroke by means of upper and lower nuts and lock in each
case with second nut
Test valve for function and leaktightness
Place tube onto stroke limitation and screw cover by hand onto guide spindle
12 - 2000/2002/2012/2030/2031
Stop length for Actuator K-175 (2012): 54.5 mm
Stop lenght for Actuator L-225 (2012): 44 mm