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5
IV. GEAR
OPERATOR ADJUSTMENT
NOTE:
It is best to visually check the valve disc OPEN and CLOSE positions before the valve is
installed in the system piping to assure proper valve operation.
1. Attach gear operator to the top of the valve and securely tighten bolts, or verify bolts are
securely tight if you received a valve with the gear operator already attached.
2. Fully close valve and inspect seat to assure disc is centered equally in seat. If not, CLOSE
stop adjustment is necessary.
IF VALVE DISC DOES NOT FULLY CLOSE
3. Loosen CLOSE stop nut on gear operator one turn by turning counterclockwise or remove
outer set screw. See
FIGURE 2, 3, 4, & 5
on next pages
.
4. Loosen CLOSE stop set screw 2 turns by turning counterclockwise.
5. Turn handwheel clockwise until valve disc is centered equally in seat.
6. Tighten CLOSE stop set screw by turning clockwise until it stops.
7. Tighten CLOSE stop nut until it is tight or reinstall outer set screw and tighten.
IF VALVE DISC TRAVELS PAST CLOSE POSITION
8. Turn handwheel counterclockwise until disc is centered in seat.
9. Loosen CLOSE stop nut on gear operator one turn by turning counterclockwise or remove
outer set screw.
10. Tighten CLOSE stop set screw, or inner set screw, by turning clockwise until it stops.
11. Tighten CLOSE stop nut until it is tight or install outer set screw and tighten.
12. If the valve is installed in the system piping and cannot be removed, it is possible to adjust
the stops, but is a little more difficult. The only difference is that instead of visually checking
the actual disc in the valve; you must visually check the pointer position. Because the exact
pointer position is more difficult to determine, it may take a couple tries to set the CLOSE
stop. OPEN stop adjustment is not critical; ±5° travel is adequate.
NOTE:
The gear operator’s OPEN and CLOSE positions have been set at time of shipping.
These instructions should be used for slight adjustment as needed.
GEAR OPERATOR DIMENSIONS
VALVE
SIZE
AA
BB
CC
DD
EE
FF
GG
HH
JJ
PIN
/
KEY
WEIGHT
14"
4.72
3.94
2.13
2.36
.94
10.63
10.24
19.69
9.84
.236”
X
2.17”
58
lbs.
350
mm
120
100
54
60
24
270
260
500
250
6
X
55
mm
26
Kg.
16”,
18”
20"
4.13
7.28
2.52
2.36
.94
14.96
11.42
11.81
9.84
.236”
X
1.57”
90
lbs.
400,
450,
500
mm
105
185
64
60
24
380
290
300
250
6
X
40
mm
41
Kg.
24”
5.51
5.91
3.31
2.52
.94
14.25
13.78
19.69
11.81
.236”
X
2.17”
145
lbs.
600
mm
140
150
84
64
24
362
350
500
300
6
X
55
mm
66
Kg.
30",
36"
6.37
6.95
3.46
4.05
1.10
9.74
7.66
17.68
13.91
.315"
X
1.57"
339
lbs.
750,
900
mm
162
177
88
103
28
248
195
450
354
8
X
40
mm
154
Kg.
42",
48"
13.56
9.74
5.89
5.78
1.41
16.27
9.35
19.65
28.45
.315"
X
1.57"
924
lbs.
1050,
1200
mm
345
248
150
147
36
414
238
500
724
8
X
40
mm
420
Kg.
TABLE 4
See
FIGURE 2,
FIGURE 3, FIGURE 4,
and
FIGURE 5
on next pages for drawings
