Weak current College】 【elevator maintenance procedures.

<br> <br> 1.0 purpose <br> <br> Ensure that the lift in the event of a failure to achieve reliable and correct maintenance and handling, and ultimately ensuring normal into use. <br> <br> 2.0 scope <br .> <br> The licensing jurisdiction of elevator failure handling. <br> <br> 3.0 duties <br> <br> 3.1 elevator maintenance units responsible for the reference implementation of this standard, and fill out the elevator maintenance records. <br> .<br> 3.2 management service elevator workers responsible for completing the elevator maintenance record form "of notification elevator maintenance unit troubleshooting. <br> <br> 4.0 content <br> <br> 4.1 elevator malfunction should be quick to arrive at the scene ( .the watchman and the elevator industry for five minutes; subcontractors within 20 minutes). <br> <br> 4.2 in elevator repair work by the facilitator before secure technology gives the low-down. <br> <br> 4.3 first understand the symptoms ., causes, failure analysis, failure analysis. <br> <br> 4.4 elevator malfunction general mechanical faults and electrical failure. <br> <br> 5.0 general common mechanical failure <br> <br> 5.1 room <br> <br> .5.1.1 motor bearing failure. Motor operation when abnormal sound, such as the judgement is bearing failure, remove the motor check bearing, card issuing, excessive wear and tear shall replace the bearings. <br> <br> 5.1.2 selected layer .fault typically have the following: <br> <br> 5.1.3 brake failure: brake pad and the brake wheel friction phenomena between each other and adjust brake shoe, oil, brake pad replacement brake pad to remove oil from the brake wheel. < .br> <br> 5.1.4 speed limiter: clip cord clamp and Groove Department there are sundries, bearing damage, clear debris, replace the bearings. <br> <br> 5.2 wells road and car: <br> <br> 5.2 ..1 cabin doors and automatic Gates faults: switch with jitter sound, not open the door, the door is not closed, a touch of sound, door gap is too large, clear ground Ridge chute sundries, adjust spacing, replace the damaged wheel lift .door, gate gate gap, adjust the safety edge, connecting rod rotational force refueling. <br> <br> 5.2.2 Hall door failure ibid. <br> <br> 5.2.3 door blade failure: runtime has to touch the sound .or sudden stop, adjustment tool, open the door (door to door cutter and office space, door sill knife and Hall doors hanging round clearance). <br> <br> 5.2.4 rail failed: operation not smooth, shaking, vibrations and .other phenomena, adjust rail dimensions, use find road length adjusting, track file xiuping interface. <br> <br> 5.2.5 import boots failure: does not run smoothly, a mill iron sound, vibration, and other phenomena, import boots tablets .wear gross, replacement, boots, in the wrong place and adjustment. <br> <br> 5.2.6 Security clamp fault: run-time has worn rail, serious safety clamp also action brake or unilateral brake; adjust security clamp clearance, security .interaction, lubricating, ensure that the active sites. <br> <br> 5.3 pit: <br> <br> 5.3.1 compensation chain failure: runtime has to touch the chain, since compensation growth or shortened due to such factors as, .adjust compensation chain. <br> <br> 5.3.2 safety clamp rope tensioning wheel failure: there is a steel mill or abnormal sound; adjust security clamp steel wire, replace the bearings. <br> <br> 5.3.3 buffer: .buffer rusty, inactive, hydraulic oil shortage; remove rust, additional hydraulic oil <br> <br> 6.0 elevator general common electrical failure <br> <br> 6.1 room <br> <br> 6.1.1 fuse failure: buffer pit emergency .stop, a short rope switch causes the system to drain the pit with water, exclude short point, put on the same fuse, Hall door car door safety loop, because water well road, circuit with short-circuit breaking point, go to exclude short .point of water, and put on the same fuse, led circuit, because outside indicates there is water or cable rupture caused by short circuit, etc. Drain water, exclude short point, replacing the fuse, control circuit as the control coil being burnt, .control components internal short-circuit, replace the control coil and control components, exclude the circuit, the fuse on the same. <br> <br> 6.1.2 contactors and breakers: contactors or relays do not work, because the contactors or relays .coils burned, control line or plug-ins have a break point, control lines insurance was burned and other reasons, the replacement of contactors or relays, exclude disconnect, replace the fuse. <br> <br> 6.2 wells road and car: < .br> <br> 6.2.1 upper / lower limit and limit switch failure: the failure to appear cannot go car elevator is generally not good because of switch contacts or circuit breakers and other reasons, clean the contact point or replace, remove the breakpoint .. <br> <br> 6.2.2 car door, Hall door interlock switch failure: this failure is closing off the elevator car only, are typically not good interlock switch contacts or switches, circuit breakers and other reasons. Clean the contact point, .replace the switch exclude line breaks, etc. <br> <br> 6.2.3 safety clamp switch, security window switch, the car top emergency stop: this failure occurs, the lift does not go car is bad because of the switch in General .or damaged reasons. Clean the contact point, replace the switch. <br> <br> 6.3 pit: <br> <br> 6.3.1 buffer switch, emergency stop switch pit: this failure occurs, the lift does not take the car .is due to the bad in General, buffer reset is not in place, the main cable is too long, heavy damage to meet buffer switch; clean touch points, buffer reset, shorten the primary wire, replace the switch. <br> <br .> 6.3.2 tensioning wheel rope switch failure: this failure occurs, the lift does not go cart is generally bad contact switch, security clamp steel wire is too long to switch causes damage, clean touch points, shorter security clamp steel wire, replace the .switch. <br> <br> 7.0 considerations <br> <br> 7.1 repair lift must comply with the safety systemAnd the elevator maintenance safety regulations. <br> <br> These are the most common faults, in particular, trouble by specialized .companies do more step of checking, testing, and then determine the maintenance program, and implemented. <br> <br> <br> <br> <br> <br> <br>.