Sinking winch repair and maintenance: Check the tub. Check damage rubber springs. Check that the hinges of damaged. Health checks uninstalling wheel is normal. Sinking winch usage rules: tub to be able to work perfectly without failure Shanxi jz type sinking winch must be well maintained and in compliance with rules. Mine shaft sinking winch brake performance: winch (except JZA) shall be provided with a separate operating brake and safety brake. Safety brake should hammer the brake force or spring force, JZA type winch brake in case of power outages should be able to manually release the brake. Winch operating brake and safety brake braking torque should not be less than twice the maximum static moment.