ITT
Engineered Valves, LLC
Page 12 of 22
Technical Manual No. IOT1000P
Effective 8/31/2018
REV LEVEL B
The following instructions describe how to fully disassemble the valve system.
Individual corrective tasks may not require complete disassembly. The user
should judge what steps are appropriate for each task.
Special tools are needed to remove the valve seats. The following tools are
available:
ITT P/N: 44425, T1000/T2000 seat ring tool. This tool will remove all three
seats (atomizing, purge and oil) from the oil valve body and is needed
when servicing the atomizing side of the valve.
NOTE
:
Customers that do not feel comfortable with rebuilding and testing
Skotch valves can have them rebuilt by the factory. Call the number
located on the front cover or (800) 366-1111 and ask to speak to
Skotch, Customer Service for quotation and instructions.
1.
Actuator Removal
Note:
Pneumatic supply pressure is required for actuator removal
.
CAUTION
Valve system MUST be stroked to purge position
prior to decoupling stem connector for actuator
removal. Failure to do so may result in damage to
upper seat ring and/or main stem subassembly.
Commence actuator removal by removing the Junction Box and Solenoid
Manifold Adapter Block from the actuator. Allow components to hang by
the conduit. Remove the screws securing the Yoke Lens to the Yoke.
Loosen Set Screw in the Stem Connector. Loosen Stem Connector Jam
Nut. Stroke system to "Purge" in accordance with operating instructions
(Paragraph II.C). Unscrew Stem Connector from Actuator Output Shaft.
After 6-7 turns, stroke system to "Closed" (Paragraph II.A) and continue
to unscrew Stem Connector. Remove the four hex nuts holding the
Actuator to the Yoke. Lift Actuator off of valve, being careful not to hit
Valve Stem. The Yoke Box can be removed by removing the Yoke Lock
Nut from the valve End Flange.
2.
Atomizing/Purge Valve Disassembly
