- 8 -
Place all three o-rings into green end cap grooves.
IMPORTANT:
When installing largest diameter o-ring,
start o-ring in groove opposite air relief notch and work it in
towards notch. Be careful not to stretch o-ring.
IMPORTANT:
761-90 Y-Body Valves - stem protector
assembly consist of two pieces plus o-ring.
IMPORTANT:
Determine valve operation (Normally Open
or Normally Closed). Push red indicator cap over actuator
stem thread.
Place end cap assembly over the actuator stem with red
cap. Align the air port of the end cap with unthreaded thru
hole in actuator.
Fasten end cap to actuator with four bolts and lock
washers.
Define the vent plug location and insert in either the end
cap or yoke.
Place o-ring into counter bore above air port on yoke.
Place green bearing retainer into bottom of actuator.
Place actuator onto yoke. Align yoke air port with
unthreaded thru hole in actuator.
Fasten with four bolts and lock washers.
MAINTENANCE
CAUTION
To prevent personal injury, keep hands and tools out of
and away from valve bodies and stems when applying or
releasing air to an actuator. The actuator stem assembly
moves with extreme force and suddenness.
VALVE ASSEMBLY
IMPORTANT:
Replace all worn or damaged components as required. Spray stem and o-
ring with Tri-Clover L-1011 Sanitary Lubricant. Make sure all valve bodies are mated
properly before securing with clamps. Tighten all clamps securely to assure proper
alignment. When disassembling and assembling valve, bench area should be clean to
prevent marking and nicking of seats.
Vent
Red Cap
Norm. Open
Norm. Closed
Norm. Closed
Norm. Open
Vent
Shut Off & Divert
Elbow & R. Acting
Содержание 741 Series
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