First, the inspection and maintenance AS sewage pump, AV sewage pump, WQ sewage pump series, excellent product performance, stable and reliable operation, each pump in the factory have a rigorous appearance testing, permanently lubricated ball bearings and in the oil chamber operation Of the high-quality mechanical seal sewage pump has the greatest durability, however, in order to ensure the life of the sewage pump, it is recommended to use the unit for regular inspection and maintenance.
1, Regularly check the pump motor phase and the relative insulation resistance, the value should be greater than 2MΩ, or should be disassembled overhaul (for drying), should also check the grounding is solid.
2, the gap between the impeller and the tearing mechanism (base cover) is 0.3 ~ 0.5mm, after long-term use in the medium, the gap may increase due to wear and tear, at this time should be adjusted, the method is as follows: Disconnect Power, loosen setscrew, the cover rotated at an appropriate angle to restore the original gap.
3, sewage pump after repeated use must be placed in running water for a few minutes to prevent the pump chamber to leave sediment, affecting the normal use of sewage pumps.
4, after the sewage pump is used for half a year in the stipulated medium, should check the oil chamber seal condition, the replacement 10 # ~ 30 # machine oil, if necessary, replace the mechanical seal, in case of poor working conditions sewage pump should be regularly overhaul To change the oil method: Place the pump so that the oil compartment plug (inside the water outlet) faces downwards to drain the oil, and then wash the oil compartment with detergent oil, re-inject the appropriate amount of oil (70% ~ 80% Replace the new O-ring and tighten the screw plug.If there is water found in the waste oil (milk emulsion) to clean the oil chamber and re-install the oil, after three weeks of use must be re-examined once again found that the lubricant becomes Emulsion, mechanical seal should be checked, if necessary, be replaced (contact with our maintenance department), if the site has replacement conditions, the seal should be replaced after the airtight test (air pressure 0.5kg / cm2).
5, If the sewage pump failure, can not determine the cause, and in accordance with the exclusion method provided below still can not be resolved, please do not take a temporary casual approach, not to indiscriminately dismantling chaos repair should contact our maintenance department, we will With the fastest and best service for you to solve the problem.
Second, sewage pump failure reasons and troubleshooting
1, the pump flow or head drop reason analysis and troubleshooting
a, pump reverse.
b, delivery lift is too high.
c, aspirated medium bypass.
d, the outlet pipe leaks.
e, the outlet pipe may be blocked by sediment.
f, pump partially blocked.
g, impeller or base wear.
a, turn off the control box of the total power, exchange two-phase power cord.
b, check: the selection is correct; outlet pipe size is correct.
c, check whether the valve is shut down, and then full load test pump.
d, find the leak, and repair.
e, check the pipeline, clean or replace.
f, check and clean the pump (included in the filter used).
g, adjust the gap or replacement parts 2, no operation after the pump operation analysis and elimination methods
a, gas plug.
b, check the water discharge valve.
c, pump reverse.
a, frequently open and close the valve; start and stop the pump several times, start / stop the pump time between 2 ~ 3 minutes; according to the installation method, check whether the need to install the release valve.
b, open the valve; check the valve installation direction is wrong;
c, turn off the total power supply, exchange the second-line power cord. 3, stop moving too frequently Cause analysis and troubleshooting
a, float switch selected distance is too short.
b, check valve failure, check valve not only back, so that the liquid back into the sewage pool.
a, readjust the float switch to extend the running time.
b, check the valve and maintenance 4, the pump can not stop the cause of the analysis and elimination methods
a, float switch function failure.
b, floating float card in the work place.
a, check and replace as needed.
b, release, adjust the position as needed.
5, the pump starts, the circuit breaker, overload device jump reason analysis and elimination methods
a, the voltage is too low.
b, the voltage is too high.
c, motor wiring error.
d, deposits in the bottom of the volute deposits.
a, check the voltage, if the voltage is too low you can not use; cable is too long, causing the pressure drop is too large, should try to shorten the cable, and the appropriate choice of thicker cable.
b, the use of transformers, the voltage adjusted to the normal range.
c, check the control box cable color number and connector label and check the wiring.
d, clean the pump and sewage tank, see the installation instructions in the relevant part 6, the pump can not start, fuse blown or circuit breaker jump Cause analysis and troubleshooting
a, float fault.
b, winding, connector or cable short circuit.
c, the pump is blocked.
a, check the bypass float switch can start the pump, if so, check the float switch.
b, check with ohmmeter, if the short circuit should be checked windings, lugs and cables.
c, cut off the power, the pump out of the sewage pool, remove obstacles, reset before the trial. 7, the pump can not start troubleshooting analysis
a, no electricity.
b, winding, cable, terminal or control box open circuit.
a, check the control box power is normal.
b, check the cable, motor connector and winding.
Our Deburring Constant Force Actuator, deburring Force Control System, or deburring Active Contact Flange have many advantages over other grinders. It can realize flexible grinding, quick repsond to surface changing, and instant adjusting. Traditional mechanic hand lacks flexibility, and it is not easy to adjust, hard to realize mass production.
Deburring Constant Force Actuator
Deburring constant force actuator, Deburring active contact flange, Deburring force control system
DARU Technology (Suzhou) Co., Ltd. , https://www.daruacf.com