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Block Valves: Instruction Manual for All Sizes
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1.3.5.5.3 Installing the Position Indicator Kit
To install a position indicator kit:
1. Remove the cover (4) from the position indicator assembly by removing the electrical
connector and the screw and lockwasher from the top cover.
2. Apply air pressure to the valve and allow the valve to remain in the open position.
3. Remove the red visual indicator cap (not shown) from the valve stem.
4. Apply a small amount of Loctite #242 to the threads of the special shoulder screw (22)
before threading it into the valve stem. Install the 5/16 by 1/2" long stainless steel
shoulder screw on the valve stern. Tighten the shoulder screw until it is fully threaded
into the valve stem then torque it to 30 inch-pounds.
5. Remove the air pressure from the valve to close it.
6. Carefully mount the position indicator assembly on the valve. It may be necessary to
move the switches back to clear the shaft. Use two #6-32 x ¾" pan head screws and two
#6 lockwashers to fasten the position indicator on the top of the valve.
1.3.5.5.3.1 Wiring the Position Indicator
Refer to Figure 1-9 on page 1-19 for this procedure.
To wire the position indicator:
1. Remove the holding screw (1) and pull the connector (2) away from the base (6).
2. Using the holding screw, push the terminal block out of the connector housing.
3. Feed the No.22 AWG wire through the housing grommet and connect the leads to the
appropriate terminal block contacts for the desired operation.
NOTE
The position indicator can be wired for normally-open or
normally-closed operation, or both:
Normally-open
The position indicator supplies an
electrical output signal when the valve
is open.
Normally-closed
The position indicator supplies a signal
when the valve is closed.
Both
A signal is supplied when the valve is
open or closed.
Содержание L6280
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