TM 10-4610-232-12
4-47. BUTTERFLY VALVES WITH VALVE ACTUATORS. This task covers: (MODEL WTA-060 ONLY)
a. Removal.
b.Disassembly.
c. Repair.
d.Reassembly.
e.Installation.
INITIAL SETUP.
Tools, see Appx B, Sec III, Ref Code (No.):
Equipment Condition:
Tool Kit, General Mechanics Automotive (1)
ROWPU shutdown when replacing unit.
Materials/Parts:
General Safety Instructions:
Tape, Antiseize (Appx E, Sec II, Item 67)
WARNING
Lockwashers (TM 10-4610-232-24P)
Washers TM 10-4610-232-24P)
Observe specific Warning in the text.
REMOVAL.
NOTE
Mark actuator valve position in relation to butterfly valve before removal.
Remove butterfly valve with actuator from system (para. 4-45a).
DISASSEMBLY.
a. Refer to Figure 4-51, loosen clamp (1) and remove valve actuator (2) from butterfly valve (3).
b. Disassemble the upper section of actuator valve as follows:
(1) Remove air hose (1, Figure 4-52) by pushing in on connector (2) with a wrench while pulling on
hose (1). Remove fitting (2) if necessary.
(2) Turn cap (3) counterclockwise and remove cap (3).
(3) Unscrew and remove switch positioner (4).
(4) Remove three screws (5).
(5) Remove top section (6) from actuator.
Figure 4-51. Remove Valve Actuators from Butterfly Valves
(MODEL WTA-060 ONLY)
Change 7 4-199
