Bray 04 Gear User Manual
Series 04 Gear Operator Mounting and Lubrication
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Date: December 11, 2009 Page 1 of 4
Series 04 Gear Operator Mounting
and Lubrication Instructions
Manual Number OM-04-001
For heavy-duty on-off and throttling service of
2” – 48” (51-1219 mm) Quarter Turn Valves.
The Series 04 gear operator is self lubricated for
smooth trouble-free operation. The rugged cast
iron body with o-ring body seals is weatherproof
to IP65. A self locking worm and worm gear drive
holds the valve in the desired position. Features
include a readily accessible hand-wheel, a valve
position indicator and mechanical travel stops
which permit eld adjustment of valve position
to specic degrees of rotation.
WARNING
Gear operator handwheel is attached to manual
override shaft with a split spring pin. The pin is
designed to shear if excessive force is applied
to handwheel before internal gears or housing is damaged. Gear operator with or without
valve should never be lifted by handwheel.
The gear operator is mounted to the valve
as follows:
Manually operate the gear operator until the •
output shaft is in line with the valve stem. On
valve sizes through 12” (305 mm) the valve
stem will be aligned with the “double-D”
stem. On valves larger than 12” (305 mm) the
gear operator and valve stem alignment will
be with the keyway on the full diameter stem.
Place the correct stem adaptor, if required, •
onto the valve stem. It is recommended that a
small amount of grease is applied to the adaptor for easier assembly to the valve stem and
gear operator drive shaft.
Install the mounting studs into the gear unit •
base mounting holes. The shorter threaded
end ts into the gear unit base.
CAUTION
Care must be taken not to jam ngers or hand
between gear operator and valve.
Mount the gear unit onto the valve stem. Make •
certain that the mounting studs are correctly
aligned with the holes on the top plate of the
valve or the valve mounting bracket. It may be
necessary to rotate the gear operator hand-wheel
to align the studs with the mounting holes.
Lower the gear operator onto the valve and •
secure in place by tting the lock washers
and hex nuts.
All information herein is proprietary and condential and may not be copied or reproduced without the expressed written
consent of BRAY INTERNATIONAL, Inc.
The technical data herein is for general information only. Product suitability should be based solely upon customer’s detailed
knowledge and experience with their application.
Series 04 Gear Operator Mounting and Lubrication
Manual Number OM-04-001
Date: December 11, 2009 Page 2 of 4
All information herein is proprietary and condential and may not be copied or reproduced without the expressed written
consent of BRAY INTERNATIONAL, Inc.
The technical data herein is for general information only. Product suitability should be based solely upon customer’s detailed
knowledge and experience with their application.
Adjustment of travel stops in the field is achieved as follows:
(The instructions are for a standard clockwise to close application).
Adjustment of the “Closed” position travel stop:
Figure 1
Looking on the end of the gear operator the right hand bolt is •
the close adjustment. (See Figure 1)
Remove the valve position indicator and view the position of •
the valve stem. (See Figure 2)
Rotate the close travel stop screw clockwise until the screw •
touches the quadrant.
We have to consider that in the full closed position the stem •
“double D” ats align with the position of the valve disc (See
Figure 3). Similarly on the full diameter stem the keyway position will align with the valve disc position.
Loosen the lock nut and back off the close travel stop screw •
one turn in the counter-clockwise direction.
Rotate the hand-wheel until the sides of the “double D” or •
the sides of the keyway are parallel with the face of the valve.
(See Figure 4)
Verify that the “double D” or keyway is still parallel to the •
valve face.
Carefully re-tighten the travel stop lock nut•
Figure 2
Figure 3
Replace the valve position indicator.•
At this point apply a sealant to the lock nut of the close travel •
stop to ensure that it will not be readjusted.
When factory setting the close stop, as the valve is not in line, •
instead of aligning the shaft with the face of the valve, it is
more accurate to measure from the face of the valve to the
disc face at the 3 o’clock and 9 o’clock positions and adjust
the gear unit until the measurements are equal.
Figure 4
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