5973129-7
1
2
3
MINIMUM WIRE SIZE FOR THREE-PHASE MOTORS
Hp
Volts
0-25 Ft.
50 Ft.
100 Ft.
150 Ft.
200 Ft.
0.33
230
460
14
14
14
14
14
14
14
14
14
14
0.5
230
460
14
14
14
14
14
14
14
14
14
14
0.75
230
460
14
14
14
14
14
14
14
14
14
14
1
230
460
14
14
14
14
14
14
14
14
14
14
1.5
230
460
14
14
14
14
14
14
14
14
12
14
2
230
460
14
14
14
14
14
14
12
14
12
14
LIMIT ADJUSTMENT and TESTING OF OPERATOR
WARNING: To avoid serious injury or death always
disconnect electrical power before adjusting limit
switches.
Limit Nut
Limit Nut Keeper
"Open" Limit Switch
"Close" Limit Switch
FIG. 9
This operator has been supplied from the factory with
constant pressure to open and close. It is advisable that
you test the operator and set limit switches in this mode.
With quick release arm still disconnected, turn power on
to operator and press open button. This insures that the
operator is running in the correct direction. Press Stop
button after unit has run a few feet, then close the operator
so the trolley carriage is within 6" of front mounting bracket
and attach quick release arm to trolley carriage. Set close limit
at this position by depressing limit nut keeper and turning nut
towards the close limit switch (see Fig. 9) until limit switch
is activated (clicks).
Note:
In certain applications the limit
switches may be reversed from what is shown. At this time
the clutch must be adjusted, see clutch adjustment.
When clutch is properly adjusted, raise door to the full
open position and stop door at the desired height and
set the open limit nut as described above. After setting
Hp
Volts
0-25 Ft.
50 Ft.
100 Ft.
150 Ft.
200 Ft.
0.33
115
230
14
14
12
14
10
14
8
14
6
12
0.5
115
230
14
14
12
14
10
14
8
14
6
12
0.75
115
230
12
14
10
14
8
14
6
12
4
10
1
115
230
12
14
10
14
8
14
6
12
4
10
1.5
230
14
14
12
10
8
MINIMUM WIRE SIZE FOR SINGLE-PHASE MOTORS
CLUTCH ADJUSTMENT
DANGER: To avoid serious injury or death
always disconnect electrical power before
adjusting clutch.
The clutch must slip to prevent door damage
or injury if the door hits an obstruction while
moving.
To adjust the clutch sensitivity, tighten the 1st nut until the
operator will start to lift the door. If the clutch begins to
slip, press the "stop" button and tighten nut again. Repeat
this procedure until door travels smoothly in both directions
to the fully open and closed positions. See Fig. 11.
After final adjustment,
make sure jamb nut is locked to
1st nut.
Using a wrench to hold the 1st nut, use a second
wrench to tighten the jamb nut to the 1st nut, making
sure nuts are locked together. See fig. 10
Additional adjustments may be required after a short
breaking in period.
WARNING: Do NOT over tension the clutch.
Note: The clutch is set loose at the factory and must be
adjusted in the field for proper sensitivity.
1ST NUT
CLUTCH SPRING
WASHER
LARGE PULLEY
CLUTCH
PLATE
FIG. 11
FIG. 10
JAMB NUT
CLUTCH DISK
Use wrench
to hold 1st nut.
Torque jamb nut
in direction shown.
Three Phase Power:
On units requiring three phase power, be
certain motor rotates in proper direction. Limit switches will not
function if motor rotation is incorrect. To change motor rotation,
reverse any two of the three incoming power leads.
limit nuts in desired position, make certain that limit nut
keeper is engaged in grooves on limit nuts. When making
fine adjustments, turn nut no more than 1/4 turn at a time.
To stop door earlier, move limit nut closer to limit switch.
To stop door later, move nut away from limit switch.
