TYM 1000/2000 Slide Gate Operator Installation Guide
- 7 -
Rev 9 02/14
Operator Setup (Continued)
Limit Nuts Rough Adjustment
The limit nuts are not preset at the factory and must be
adjusted for the length of the gate in each installation. The
limit switches are activated by two threaded nylon rotary
limit nuts which are attached to a threaded limit shaft
driven by a chain and sprockets from the main drive shaft
(see Figure 10).
REMOVE THE CARDBOARD FILLER
BEFORE ADJUSTING THE LIMIT NUTS.
The Controller is factory set for right hand installations. The
left limit nut is for
OPEN
and the right limit nut is for
CLOSE
.
The limit nuts flip their definition in left hand installations.
(see left-right hand programming on Page 12).
1.
With the gate connected to the gate operator in a mid-
travel position, the power disconnect switch turned OFF,
disconnect the operator by using the manual disconnect
lever. Once the operator has been disconnected,
manually move the gate by hand to within a foot of its
fully open position (the foot of distance is necessary to
allow for coasting of the operator after the limit switch is
tripped).
2. Once the gate is in this position, adjust the OPEN limit
nut until it activates the limit switch for open. Press down
the detent plate and rotate the nut along the threaded
shaft (see Figure 10).
3. After setting the open limit, move the gate to one foot
from fully closed and repeat the process for the CLOSE
limit nut (see Figure 10).
Limit Nuts Fine Adjustment
After finishing the rough limit nut adjustments, reposition the
gate to approximately the center of travel.
1. Re-engage the operator using the disconnect handle.
2. Turn the power disconnect switch ON.
3. Stand clear of any moving parts and press the OPEN
button.
4. After the gate opens, press the CLOSE button.
5. Observe the gate in both directions as it runs through
each complete cycle. Adjust the open or close limit
nuts again if necessary. Fine levels of adjustment can
be made by adjusting a few teeth on the nut at a time.
If the gate stops during travel, you may need to adjust
the Open or Close Current Setting or the Maximum Run
Timer (see Pages 13-14).
PRESS DETENT
PLATE DOWN
ROTATE
LIMIT NUT
Figure 11. Setting the Limits
CAUTION
If the operator is installed in a left-hand installation. Set
the Controller to left-hand operation BEFORE running the
operator for the fine setting of the limit nuts. Failure to do so
will result in over-shooting the limit switches, and can cause
damage to the operator and/or gate. Refer to programming
on Page 12.
Figure 10. Limit Box Assembly
NOTE: Auxiliary limit switches are located below limit shaft
and can be used for gate status.
Left-Hand To Open
Right-Hand To Open
Limit Shaft
Limit Nuts
CLOSE LIMIT
OPEN LIMIT
OPEN LIMIT
CLOSE LIMIT
Auxiliary Limit Switches