Linear SWD, SWR, SWC manual Troubleshooting

Troubleshooting

Contacting Technical Support

For technical questions regarding Linear gate operators, contact the Technical Services Department at:

1-800-421-1587 from 6:30 AM to 4:30 PM Pacific time

Operator fails to start

A. If the operator has been running a large number of cycles, the motor may have become too hot and tripped its thermal overload breaker. Allow the motor to cool down and the thermal overload breaker will reset automatically.

B. Make sure you have power at the master distribution panel and that the power has not been turned off.

Motor operates, but gate does not move

A.In operators with torque limiters and friction pad clutches, check for signs of slipping. You can mark the sprocket and clutch with a yellow or white grease pen and watch for the lines to move apart if slipping is taking place. Adjust the torque limiter tighter if this is the problem.

B.Check for broken chain or worn belts.

C.Check all setscrews on pulleys and sprockets and tighten them if necessary, and check for keys which may have fallen loose from keyways.

Motor sounds like it is working harder than normal

A.Make sure the gate is moving freely and without binding throughout its entire travel.

B.Check the drive chain for obstructions (if the operator has one).

C.If the operator has an internal brake mechanism, make sure it is releasing.

Gate stopping part way open or closed (but no visible obstruction)

A. The Controller may have received a false obstruction input triggered by current sensing set too low. Make sure the gate moves freely through its entire travel before adjusting the current sensing.

B.The Maximum Run Timer may have counted down and expired. This can be caused by having the timer set too low, if a chain or belt is broken, or if a sprocket or pulley is slipping. When the timer expires, the gate stops and the beeper will sound.

C.An obstruction signal from an accessory wired to the obstruction input may have triggered falsely. Check the control board for lit indicators for any of the following inputs: safety, shadow/reset, open obstruction, close obstruction, stop, etc. If any are lit when the operator should be running, remove all devices hooked to that function and hook them up one at a time and try to run the operator until the problem device is found. Refer to Page 9 for details on the control board indicators.

Gate staying open with automatic system

A.If there are vehicle detectors used with the operator, one of the loops or loop detectors may be sending a false signal or needs to be reset. Observe the indicators on the loop detector. Unplug the detector and try running the operator.

B.An opening or reversing device may be stuck or malfunctioning. Try disconnecting these devices and hook them back up one at a time and try running the operator until the malfunctioning device is found.

C.Make sure the close limit switch isn’t activated. If it is, the operator will think the gate is already closed.

Limit switch getting out of time

A.Check the setscrews in limit cams for tightness. Replace if necessary.

How to Order Replacement Parts

Use the part numbers listed on the following pages.

Contact your local Linear dealer or distributor to order parts.

1.Supply the model number and serial number of your operator.

2.Specify the quantity of pieces needed and order by part number and name of part.

3.State whether to ship by freight, truck, parcel post, UPS or air express.

4.State whether transportation charges are to be prepaid or collect.

5.Specify name and address of person or company to whom parts are to be shipped.

6.Specify name and address of person or company to whom invoice is to be sent

SWR • SWC • SWD Swing Gate Operator Installation Guide - 23 - 227965 Revision X13 3-28-2008