Once the elevators in the old sector have been overhauled, the most vulnerable and expensive place is the “trailer” on the top floor. It's the heart of the elevator, the engine of the car. It took a dozen or 20 years, and the bearings were broken, the brakes were worn or the wires burned, and the maintenance master offered a price of thousands or even tens of thousands。
Elevator
This is when the property and the owners are in trouble: should it be repaired or replaced? How much is it going to cost? Let's draw a red line for the account today, see how much it costs to replace the parts。
E. M. I.: it's a good thing the bearings are broken
Many of the elevators are now using a “magnetic synchronous power machine”, which is itself solid and, most vulnerable, the “axis” inside. If the elevator is broken, it will sound, vibrate and even stop. The market price is usually between $2,000 and $4,000. The price is entirely worth repairing, because the bearings are just a small part, and the electricity can be replaced with a new one for several years. If the offer is in this compartment, don't hesitate to fix it. It's like car exchange, it's the necessary maintenance input, it's extremely expensive。
Elevator
Red-line standard: over one third of host cost
When should we stop? There's a gold cut-off point: if the single maintenance offer exceeds one third of the tractor's “market value of the new machine”, it's not worth it. And we're going to do it on a market basis, a normal 1,000-kilogram national magnetic host, and it's gonna sell around $30,000 to $50,000. If the maintenance master told you that it would take 15,000 dollars to fix one of the core parts, then you'd have to be careful. With half the money to buy an “old heart”, there is a high risk that the rest of the old parts may strike again at any time. More than 10,000 dollars, the deal is already lost。
Loop maintenance: over $5,000 for direct replacement
Another common failure is the burning of electrical wires, commonly known as “bunking buns”. It used to be very cheap to re-route, but now the price of paint-packing material has increased, and manual circuits are extremely expensive. If the wire is burned, if the repair offer exceeds $3,000 to $5,000, it's recommended to change the machine or find a refurbisher. Because the circuit just fixed the interior, the external insulation is getting old, and it's not going to take long and short. It's worth thousands of dollars to buy a time bomb, and it's worth a lot more than a little extra money to replace a new host with a quality assurance。
Elevator
Invisible risk: spare parts are difficult to find and better put in place
The largest pit in the old elevator is “lack of accessories”. Some imported brands or failed manufacturers, parts are long gone. If the master says it's special to make, to process, it's usually too high, and it's tens of thousands. In such a case, no matter what the offer was, it was not worth it. Because you spent so much money on fittings that you didn't even go through the manufacturer's matching test, and it didn't take much longer to fit in, and then there was no bottom hole. The smartest option at this time is to spend $20,000 on a modern mainframe that's common to the nation, and even though the trouble is to change the bottom seat, it's over。
General: don't just read a single quote
The final judgement is worthless, depending on the “remaining life” of the elevator. If it's been 20 years since the elevator, the beams are rusty and the control system is an antique, i wouldn't suggest you repair it, even if the mainframe offered only $10,000. Because even if the mainframe is fixed, next month it's going to have to change the wire and fix the door. For these "dreary years" elevators, it's more cost-effective to spend a lot of money fixing a mainframe to throw money into the water, to save money for a new ladder, or to remodel it as a whole。
Elevator
Summary recommendations
In short, old elevator tractor maintenance, thousands of small patches are acceptable. But once the offer exceeds three-third of the price of the host's new machine, or more than $5,000 for major repairs, it has to be careful. It's important to calculate the price of the new machine, not to save the money in front of you, but to buy a bunch of old parts, which is really not worth it。
