SLIDING GATE OPERATOR
13
Chain
Close the gate and attach a chain bolt to the piece of chain that comes with the chain box
using enclosure master links. Tighten the chain bolt to the bracket with washers and nuts.
Pull the chain through the chain wheel box to the other chain bracket at the opposite end of
the gate. Connect the other end of the chain and the chain bolt, and then tighten the chain
bolt to the chain bracket. Thread up the chain by adjusting the chain bolt. Cut the chain to
length if necessary. Make sure that the chain is perfectly aligned with the chain holes on the
chain box. Tighten the chain by tightening the chain bolts at either end. See illustration
below.
Master link
Chain bolt
Chain
Fig.6
Magnets for Limit Switch
Install the magnet and magnetic limit switch as shown in Fig.7. The magnet and limit switch
are used to control the position of the gate. When the magnet is installed, release the gear
clutch and push the sliding gate manually to pre-determine the position. Fit the magnet
bracket to the gate and then tighten the gear clutch. The lower bracket is for open position
and higher bracket is for close position. Finally adjust the magnet to the proper position by
moving the gate with the motor. The magnet should be .39 - .59 “away from the magnetic
limit switch. If it is too far away, the switch will fail to work. The distance between the magnet
and the operator should be @ ½” (12mm) with the operator cover on. Adjust the position of
the magnetic limit switch until the positions of the opening and closing meet the requirement.
Important Note: Please note the two magnet brackets (fixed plate) are different: one is
higher and another is lower. Verify and if necessary exchange the two brackets
position. Also if necessary
exchange the limit switch wires CL (close) and OP (open).
Another common problem is there are four reed switches inside the magnetic limit
switch: two are upper and two are lower. The magnet position can be installed in the
middle so it inducts both reed switches. Solution: adjust the magnet upper or lower.
mm5.412
10-15mm
Gate
Nut
Bolt
Spring washer
Plain washer
Magnet bracket
Magnet
Nut
Magnetic limit
switch inside
Gate operator
Fig.7
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