Position Adjustment - Bray 5A Series Installation, Operation And Maintenance Manual

12. Position Adjustment

A single lobed or doubled lobed cam is provided
for every independent/main switch. Double lobed
cams are provided in the S5B when the switch
configuration could include an auxiliary switch.
Double lobed cams will activate both main and
auxiliary switches at the same time.
Cams are mounted to the indicator shaft, alternating
between red and yellow and are independently
adjustable by hand in 3.6° increments. No special
tools are needed for this adjustment. The self-locking
design ensures that cams will not slip position.
The bottom red cam is intended to indicate the close
position while the bottom yellow cam is intended
to indicate the open position. Both of the switches
associated with these cams are labeled accordingly.
An additional red and yellow cam may be installed
in the S5B and can be used for mid-travel position
indication or to provide an additional auxiliary
open and close indication. Mid-travel switches
are unlabeled.
Closed Travel Indication Adjustment
1. Operate the quarter turn device until it
reaches the desired closed position.
2. Pull the bottom red close cam upwards
towards the yellow cam to disengage the
cam from the fixed cam holder.
3. While the cam is disengaged, rotate the cam
to the position that will activate the close
switch.
a. NOTE: Do not attempt to adjust cams
prior to disengaging the cam from the
fixed cam holder.
4. Release the cam and allow the locking spring
to re-engage the cam with the fixed cam
holder.
Series 5A and Series 5B Valve Status Monitor
Installation, Operation and Maintenance Manual
Open Travel Indication Adjustment
1. Operate the quarter turn device until it reaches
the desired open position.
2. Push the bottom yellow open cam towards the
bottom red cam to disengage the cam from
the fixed cam holder.
3 While the cam is disengaged, rotate the cam to
the position that will activate the open switch.
a. NOTE: Do not attempt to adjust cams
prior to disengaging the cam from the
fixed cam holder.
4. Release the cam and allow the locking spring
to re-engage the cam with the fixed cam
holder.
Mid-Travel Indication Adjustment
1. Operate the quarter turn device until it reaches
the desired mid-travel position.
2. Disengage the cam from the cam holder.
a. NOTE: Mid-travel cams are disengaged
similarly to the open and close cams.
3. While the cam is disengaged, rotate the cam
to the position that will activate the mid-
travel switch.
a. NOTE: Do not attempt to adjust cams
prior to disengaging the cam from the
fixed cam holder.
4. Release the cam and allow the locking spring
to re-engage the cam with the fixed cam
holder.
Test unit for proper switch activation prior to
commissioning VSM into service.
NOTICE
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