Burkert 2000 Instructions De Montage page 20

WArnIng!
risk of injury and functional failure due to derailed or slipped
parts!
The actuators contain pre-tensioned springs that may derail or slip
on improper opening.
• Actuators K-175 and L-225 shall only be opened in our factory
or by the responsible distributor.
8.3.1. Work to be carried out before
installation
DAnger!
hazard due to high pressure!
• Interrupt the control air and fluid infeed before modifying the
devices and reduce the pressure in the fluid system.
→
Interrupt supply of medium and empty valve housing.
→
Bring actuator into the upper piston position.
DAnger!
for control function a and I:
risk due to high pressure when screwing on the visibility
hood!
The visibility hood must not be pressurized during attachment.
• Therefore pressurize only the lower piston area via the lower
control air connector using compressed air.
20
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Type 2 000, 2002, 2012
Option: Min. /max. stroke limitation
→
Unscrew transparent cap from actuator cover.
→
Screw out position indicator/spindle cap
( yellow screw cap; see "Fig. 8: ") by hand.
→
Interrupt supply of control air.
8.3.2. Installation and commissioning
→
Lightly grease spindle extension
(silicone grease OKS 1110-0).
→
① (with Allan key WAF8) onto actuator
Screw spindle extension
spindle (M16x1.5) and secure with Loctite 274.
→
② over spindle extension ①.
Place guide spindle
Type 2012 Control function a:
→
⑧ onto guide spindle ② and secure with
Screw stop
Loctite 274.
Stop length for Actuator K-175 (2012):
Stop length for Actuator L-225 (2012):
2030, 2031; 2032, 2033
①
54.5 mm
44 mm