22
Option: Hand wheel
Interrupt the control air and fluid infeed before modifying the •
devices and reduce the pressure in the fluid system.
Interrupt supplies of control air and medium
→ .
Empty valve housing
→ .
Unscrew transparent cap
→ from actuator cover.
Screw out position indicator with Allan key (
→ WAF5 or WAF8).
Carefully lever the transparent cap → ② off the hand wheel ① with
a suitable tool (cap is only pressed on, not threaded)
Check: • Setscrew
→ ③ without locking paint (3 pcs.) are loose
• Pull rod ④ is at lower stop
(may be adjusted with Allan key WAF5 or WAF8).
Screw hand wheel onto actuator cover, using flats on hand
→
wheel and counterbracing at valve
max. tightening torques: D-50, E-63, F-80 = 15 Nm
G-100, H-125 = 20 Nm.
Screw pull rod → ④ with Allan key (WAF5 or WAF8) onto actuator
and secure with Loctite 274.
The screws secured with locking paint shall not be •
moved:otherwise perfect functioning will no longer be assured!
Securely tighten setscrews
→ ③ without locking paint
(3 pcs, WAF2.5).
Test valve for function and leaktightness
→
To open, turn hand wheel → ① anticlockwise
⑤
Insert o-ring • ⑤ carefully.
Do not use sharp objects. •
Push on transparent cap
→ ② with O-ring ⑤.
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