Conversion From Control Function A (Cfa) To Control Function B (Cfb) - Burkert 2000 Mode D'emploi

9.2 Conversion from control function A (CFA) to
control function B (CFB)
DANGER!
Danger – high pressure!
▶ Turn off the pressure and vent the lines before loosening lines or valves.
Risk of injury from improper maintenance!
▶ Maintenance may be performed by authorized technicians only!
▶ To screw on or unscrew valve body or actuator, use an open-end wrench, never a pipe wrench.
▶ Observe tightening torques.
Required parts:
Item
35
30
Procedure:
→ 1
Mount valve
→
Pressurize lower control air connection with compressed air (5 bar). Valve opens.
→
Screw actuator on the nipple
→
Vent actuator.
CAUTION!
Danger through taut springs!
▶ Carefully open piston actuator!
→
Release cover
12
against the hexagon.
For information about the special wrench, see Chapter "10 Installation tools".
→
For actuator size G , H: Remove washer
→
Remove pressure springs
→
Remove position indicator
→
Carefully screw in actuator on the swivel plate
25
→
Release nuts
24
5
on the body.
6
out of the valve body
31
with special wrench until the springs are completely relaxed, holding up the actuator body
28 29
.
26
with Allen key.
.
english
Description
Pressure spring
Graphite seal
1
.
40
.
3
(only put pressure on the upper section of the swivel plate).
Type 2000, 2002, 2012
Conversionofcontrolfunction
O-ring