Flowserve Valtek VL-C User Instructions page 5

Figure 1: Air-to-retract Cylinder Actuator
Tie Rod Nut (4)
(Item No. 205)
End Cap
(Item No. 207)
Tie Rod (4)
(Item No. 206)
Actuator Stem Lock Nut
(Item No. 348)
Cylinder
(Item No. 202)
Yoke O-ring
(Item No. 271)
Piston Stem O-ring
(Item No. 272)
Stem Bellows
(Item No. 247)
Yoke
(Item No. 201)
NOTE: Item numbers correspond directly to actuator's bill of material. Refer to it for specific part numbers.
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.
Valtek VL-C Spring Cylinder Linear Actuators FCD VLAIM054-01 – 06/13
Adjusting Screw
(Item No. 210)
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.
Adjusting Screw Gasket
(Item No. 248)
End Cap O-ring
(Item No. 227)
Spring Button
(Item No. 227)
Spring
(Item No. 229)
Stem Spacer
(Item No. 228)
Quad-seal
(Item No. 271)
Piston
(Item No. 225)
Actuator Stem
(Item No. 211)
Bushing
(Item No. 253)
Actuator Stem O-ring
(Item No. 275)
Bushing
(Item No. 253)
Stem Clamp
No. 26906
(Valtek Positioner)
5
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