This document introduces the disassembly, installation and adjustment methods of WYT-S series and WYT-Y series brakes.
This manual is an installation and commissioning guide for drum brake systems used on gearless elevator traction machines, including WYT-S series and WYT-Y series brakes. It describes disassembly and installation, microswitch connection and adjustment, brake system adjustment, brake shoe inspection and maintenance, maintenance requirements, and manual release procedures.
It also contains safety notes for adjustment and testing, such as confirming elevator car position before work, not adjusting both sides simultaneously under load, and performing a static load test after adjustment. This manual is written in Chinese.
| Brake shoe thickness replacement limit | 6 mm or less |
|---|---|
| Iron core inward movement | 3-5 mm |
| Maximum opening travel | about 3-5 mm |
| Brake shoe-to-drum clearance | 0.15-0.30 mm |
| Microswitch adjustment screw rotation | half turn (about 0.5 mm) |
| Manual release cable minimum bend radius | greater than 250 mm |
| Static load test | 150% of rated load for 10 minutes |
| Maintenance interval | every 6 months |
The brake must be maintained at least every six months.
They must be replaced when the measured brake shoe thickness is 6 mm or less.
The clearance should be 0.15 to 0.30 mm.
The bend radius must be greater than 250 mm.