7. For air-to-extend configurations, slowly loosen and remove the
actuator stem locknut and piston. (Remove the piston and stem
locknut together, making sure the piston does not bind on the
actuator stem.) Next, remove the spring button, spring and stem
spacer.
0
WARNING: To avoid personal injury, be certain the spring
force is completely relieved before removing actuator
stem locknut.
8. Remove the piston quad-seal, piston stem O-ring and yoke O-ring.
9. Remove the actuator stem O-ring.
NOTE:
The stem bushing is pressed into the yoke. The actuator
stem O-ring can be replaced without removing the bushing.
10. Use an appropriately sized press to push a worn or damaged
bushing out of the yoke.
NOTE:
Item numbers correspond directly to actuator's bill of material. Refer to it for specific part numbers.
Yoke O-ring
(Item No. 271)
Piston Stem O-ring
(Item No. 272)
Actuator Stem Lock Nut
(Item No. 348)
Stem Clamp
No. 26906
(Valtek Positioner)
Tie Rod (4)
(Item No. 206)
Actuator Stem O-ring
(Item No. 275)
Figure 1: Air-to-retract Cylinder Actuator
Adjusting Screw
(Item No. 210)
Adjusting Screw Gasket
(Item No. 248)
Quad-seal
(Item No. 271)
Stem Spacer
(Item No. 228)
Piston
(Item No. 225)
End Cap
(Item No. 207)
Spring Button
(Item No. 227)
Yoke
(Item No. 201)
Stem Bellows
(Item No. 247)
Tie Rod Nut (4)
(Item No. 205)
Cylinder
(Item No. 202)
Actuator Stem
(Item No. 211)
Spring
(Item No. 229)
Bushing
(Item No. 253)
End Cap O-ring
(Item No. 227)
Bushing
(Item No. 253)
5
Valtek VL-C Spring Cylinder Linear Actuators FCD VLAIM054-01 – 06/13
flowserve.com
