Tech Support
 
 
 
Meeting All Your New and Obsolete Parts’ Needs Right Down To The Bolt.
1620 Rose St
Monroe, MI. 48162
Phone: (734) 242-5456
Fax: (734) 242-5458
We will provide technical information for any trouble you have on an actuator. We’ll also try our best to solve any problems you encounter. Learn how to perform common tech support tasks yourself with practical how-to diagrams. We also provide training classes for anything we service and repair. INSERT PICTURE HERE Troubleshooting Guide Symptom Possible Cause Corrective Action Unit will not operate No power to unit Verify power supply is correct and present at actuator. Verify power leads are connected in accordance with the applicable wiring diagram. Inspect for blown fuse, tripped circuit breaker or overload or open disconnect switch. Loose or incorrect Wiring Check wiring for proper connection in accordance with the applicable wiring diagram.Check also for tight connections. Limit switches not set or incorrectly set Check limit switch settings for agreement with the applicable wiring diagram. If not set, then the switches in accordance with the appropriate instruction manual. Torque switch open Visually inspect torque switch to verify that the contacts are closed. If contacts are open, further the investigation is required to determine the cause. In this case, the unit will visually have been operating satisfactorily previously. Foreign material on Inspect and clean all switch contacts preventing good contacts in accordance with the electrical contact appropriate instruction manual. If foreign residue is from corrosion due to moisture, the installation should be inspected for proper integrity. Motor runs but no Actuator not coupled If actuator coupled to manual gear- output from unit properly to output head with keyed shaft or directly to keyed output shaft inspect to verify key is in place and properly staked. Worm gear worn out Disassemble and inspect worm gear in accordance with the appropriate instruction manual. Clutch trippers misaligned Inspect trippers to see if they are (SMB-000/00) stuck behind the tripper arm, keeping the unit in handwheel mode. Re-adjust trippers if necessary. Splined adapter installed Inspect and verify splined adapter upside down (HBC only) installed as shown in HBC. Unit operates w/o Shock or vibration causing Review installation for excessive a command. reversing starter to pull in vibrations. May need to consider motor. mounting controls separate from the actuator. Incoming power supply is Inspect and power supply voltage. not terminated at correct location. Reversing starting failure Inspect reversing starter to see if contacts have welded shut. If so, you need to replace the starter. Unit operation is Damaged gearing Disassemble unit in accordance with noisy the appropriate instruction manual and inspect gearing for rough or damaged spots. Replace the part. Inadequate lubrication Inspect quality and quantity of lube in (poor quality/not enough) accordance with the appropriate instruction manual. Add or replace the lube as required. Gearing misaligned Inspect gearing for uneven wear pattern. Most often seen in a motor gear set. Worn or damaged Disassemble unit, refurbish/replace bearings all bearings, seals and lubricant. Inspect motor bearings and refurbish as required. Fuse Blown Incorrect fuse size Verify fuses are sized correctly. Consult ASI if guidance is needed. Pinched wire Inspect control compartment to ensure the cover isn’t pinching or making contact with the wires. Power Surges Investigate control circuit for surges. Premature torque Torque switch setting Increase torque switch setting as switch trip too low required up to but not exceeding maximum setting established by torque switch limiter plate. Valve stem or stem nut Inspect valve stem for bronze flakes or evidence of bronze tracked on stem. Replace stem nut. (also see inadequate lubrication above) Valve packing too tight Inspect valve packing for excessive tightness. Repair valve by replacing packing as required. Actuator housing cover Verify housing cover installed and incorrectly installed shimmed as outlined in the appropriate instruction manual. Torque switch not Inspect torque switch for proper balanced balance and adjust if required. Bent valve stem Inspect valve stem for damage. Usually caused by excessive force applied to valve stem. Replace valve stem and inspect valve for any other damage. Torque switch fails Output rotation not in Consult with factory or ASI to verify to stop actuator agreement with unit design rotation. If actual rotation wiring opposite to design rotation torque switch needs to have contacts reversed, Incorrect installation Verify torque switch was installed with both sides set at a setting of 1 and with the actuator in an unloaded condition. Reduced voltage Verify voltage at motor is within +10% condition of rated voltage. If not, consult ASI. Torque switch not Inspect torque switch for proper balanced balance and adjust it if required. Torque switch Non-locking gear set Consult with factory to determine if remakes after gear set is non-locking and to verify torque out application. Excessive worm-gear Disassemble and inspect worm gear. wear resulting in too Replace if required. much backlash Reversing starter Starter undersized Verify starter is sized correctly for failure application. Consult ASI to evaluate. Excessive cycling Review application to determine number of starts per hour and review with factory if more than a 100. Excessive current Valve running loads Inspect valve for possible causes of draw higher than expected high running load. In particular check for excessive tightness of valve packing and for proper lubrication of valve stem. Consult ASI for review of application. Actuator housing cover Verify housing cover is installed and incorrectly installed shimmed as outlined in the appropriate instruction manual. Motor overload Excessive current draw See Above. tripping Incorrect overloads Verify proper overloads selected for motor rating. Excessive gear-wear Excessive loads Verify actual loads are in accordance with both start and run capabilities of the appropriate unit. Inadequate lubrication Inspect quality and quantity of lube in accordance with both start and run capabilities of the appropriate unit. Improper alignment Inspect worm gears for evidence of uneven wear pattern. Consult ASI.