Hale Master Intake Valve - Manual (Page 26)

24
M
ASTER
I
NTAKE
V
ALVE
20. Reinstall the gearbox onto the gearbox
adapter by lining up square end of shaft
with square bore in gearbox.
21. Apply Loctite #242 or equal to four 3 /
8
-16
x 2-½ inch long cap screws. Tighten cap
screws.
22. Apply a light coat of Sunoco Ultra
Prestige 2EP grease or equal to the valve
bore and the disc edges.
23. Back out the gearbox mechanical stops.
On manual valves (MIV-M) they are
located under the rubber plugs on side
of gearbox.
24. Connect the wiring harness and turn
power on to illuminate panel placard
lights.
25. Manually close valve. Using a reference
point, such as the valve body mounting
surface, measure the disc position.
Refer to figure 11, the valve disc edge
should be an equal distance from this
reference point. The valve disc is now
centered in the valve body in the closed
position.
NOTE: The gearbox adapter has
oversized mounting holes that allow
some adjustment to be made to set the
timing of the closed light/motor
operation versus disc position.
26. Slightly loosen the two 7 /
16
-14 x 1 inch
long counterbore screws that hold the
gearbox adapter to the valve body.
27. Manually turn back gearbox handwheel
a small amount until gearbox and
gearbox adapter are free to move. Find
the mid position of this free play and
tighten the two mounting screws.
28. Operate the valve to the open position,
then:
a. Manual valves (MIV-M)
a) Manually operate back to the
closed position. Stop when the red lamp
is lit.
b. Electric valves (MIV-E)
a) Use gearmotor to operate valve
to the closed position and allow the
switches to stop rotation.
b) The lamps should sequence from
amber to red then the motor should
stop.
29. Measure the disc position. Refer to
figure 11, the valve disc edge should be
an equal distance within ±
1 /
16
inch from
this reference point.
EXAMPLE: If A measures 5 /
8
inch, then B
must be within 9 /
16
to 11 /
16
inch.
30. If measurement is OK proceed to step
31. Otherwise loosen gearbox adapter
mounting screws and manually turn the
handwheel
1 /
8
turn in one direction and
tighten mounting screws. Repeat steps
28 and 29. If the measurement is worse
than before loosen gearbox adapter
mounting screws and manually turn the
handwheel ¼ turn in the opposite
direction and tighten mounting screws.
Repeat steps 28 and 29.
31. When the disc, in the closed position, is
within the ± 1 /
16
dimension the closed
position mechanical stop can be set.
a. Manual valves (MIV-M)
a) Tighten the screw until it stops. Do
not over tighten. Operate valve in both
Figure10. Micro Switch Tightening
PINCH MICRO SWITCHES WHERE INDICATED BY
ARROWS WHILE TIGHTENING SCREWS