To Next PageTo Next PageWhy is the manual override on my HKC Controller hard to turn?
If the HKC Controller's manual override is hard to turn, it could be due to an improperly lubricated valve stem or a valve packing gland that is too tight. In the first case, you should clean out the old grease and replace it with the recommended lubricant. In the second case, loosen the packing gland nuts as necessary.
What to do if the motor runs but will not operate valve in HKC HQ-005 Controller?
If the motor of your HKC Controller runs but the valve won't operate, the gearing might be stripped. If this is the case, replace the gears as necessary.
How to fix a HKC Controller valve that only opens or closes partially?
If the HKC Controller valve only opens or closes partially with the motor, the limit switch might be improperly set. Check the setting and reset it if necessary.
Why won't the motor run on my HKC HQ-005?
If the HKC Controller motor will not run, there could be an open in the control circuit or insulation resistance breakdown in the motor. In the first case, refer to the appropriate wiring diagram and check for continuity. In the second case, perform a megger test.
What to do if manual override nut will not operate valve in HKC Controller?
If the manual override nut on your HKC Controller will not operate the valve, it could be due to stripped gearing, a broken hand wheel shaft, or a broken valve stem. Replace the gearing or hand wheel shaft as necessary. Repair or replace the valve stem as necessary.
General| Brand | HKC |
|---|---|
| Model | HQ-005 |
| Category | Controller |
| Language | English |
Outlines precautions for reducing the risk of personal injury and equipment damage.
Covers general service and potentially explosive atmosphere considerations before installation.
Details requirements for using actuators in potentially explosive atmospheres, including safety precautions.
Provides guidance on mounting the actuator, including shaft alignment and secure fastening.
Details the procedure for setting the open and close limit switches using cam adjustments.
Explains the function of torque switches and advises contacting service for re-setting.
Guides on adjusting mechanical travel stops to define the actuator's full open and close positions.
Details the process of adjusting travel stopper bolts for setting open and close limits.
Explains how to recalibrate or replace the potentiometer for accurate actuator feedback.
Describes the CPT, its function in providing actuator position feedback via a 4-20mA signal.
Provides steps to calibrate the zero and span for the CPT to ensure accurate position reporting.
Introduces the Proportional Control Unit (PCU) and its role in controlling actuator operation.
Guides on setting Zero and Span signals for the PCU to match command signal ranges.
Explains how to adjust the output (feedback) signal for the PCU to match desired 4-20mA or other outputs.
Provides instructions for electrical connections and preliminary testing, emphasizing safety precautions.
Outlines general maintenance procedures, safety warnings, and intervals for actuators.
Provides troubleshooting steps for when the actuator fails to respond to commands.
Guides on troubleshooting issues where the actuator has power but does not operate.
Troubleshooting steps for erratic actuator operation, including temperature and duty cycle checks.
