Hisun HS500 Owner's Manual page 139

8-36 Periodic Maintenance and Adjustment
should be no free play in the brake pedal.
The brakes should operate smoothly and
there should be no brake drag. If the brakes
feel soft or spongy, this could indicate air in
the brake system. Have a service center
check the brake system if necessary.
1. Brake pedal
WARNING
POTENTIAL HAZARD
Operating with improperly serviced or
adjusted brakes.
WHAT CAN HAPPEN
You could lose braking ability, which
could lead to an accident.
HOW TO AVOID THE HAZARD
After servicing:
Make sure the brakes operate
smoothly and that the brake pedal
position is correct.
Make sure the brakes do not drag.
All air must be bled from the brake
system.
Replacement of brake components
requires professional knowledge. These
procedures should be performed by a
service center.