Here are the methods to adjust the brake tightness:
It is adjusted by adjusting the screw that fixes the brake line on the drum brake. To tighten the brake, pull the brake line outward and then tighten the screw. To loosen the brake, push the brake line inward and then tighten the screw.
Here are the methods to inflate the scale:
Remove the tire valve cap and use an extension valve to connect to the tire valve. Use a pump to connect to the extension valve. Inflate the front and rear tire pressures to 40-50 PSI. It is recommended to check tire pressure every 20-30 days.
Note:
The tire type is vacuum explosion-proof tire and the sizes of the front and rear tires are both 10 inches.