Maintenance Schedule - Chamberlain SJ Owner's Manual

Speed jackshaft operator

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Table Of Contents

Table of Contents

ITEM

Drive Chain

Sprockets

Fasteners

Manual Disconnect

Bearings & Shafts

☛ ☛ Use SAE 30 Oil (Never use grease or silicone spray).

n n Repeat ALL procedures.

n n Do not lubricate motor. Motor bearings are rated for continuous operation.

n n Inspect and service whenever a malfunction is observed or suspected.

n n CAUTION: BEFORE SERVICING, ALWAYS DISCONNECT OPERATOR FROM POWER SUPPLY.

Operators require practically no special maintenance other than periodic checking to see that mechanical parts

where necessary are lubricated and the electrical compartments are clear of dirt.

Service technicians should familiarize themselves with the proper sequence of operation and all related controls.

Power to operator must be disconnected when removing or replacing covers on electrical components, making

adjustments, or performing maintenance.

1. Check wire connections for tightness and wire insulation for defects of abrasions.

2. Check to see that all conduit connections are secure.

3. Check wires to safety edge, or infrared safety eyes, if unit is equipped with a safety to reverse feature.

4. Inspect operation of brake.

5. Inspect gearbox for leaks.

6. Inspect roller chain and drive sprockets. Align, lubricate the sprockets, and tighten the set screws.

7. Generally inspect the motor mounting, and tighten the fasteners and bracing.

8. Verify that all conduit connections are tight and have no exposed wires.

9. Inspect the electrical enclosure for debris, arching and moisture. Check for and tighten loose wiring connections.

10. Test motor operation through all control stations.

11. Check limit switch settings.

12. Examine safety edge, coil cord and take-up reel for damage.

13. Test the operation of the safety edge.

14. Check motor amperage draw for a full open and close cycle. Compare readings to those listed on the motor

nameplate