HYOSUNG Prima Service Manual page 128

7-5 SERVICING INFORMATION
Complaint
Excessive brake
1. Air entered into hydraulic system.
lever stroke.
2. Insufficient brake fluid.
3. Improper quality of brake fluid.
4. Worn brake cam lever.
5. Excessively worn shoes and/or drum.
Leakage of brake
1. Insufficient tightening of connection joints.
fluid.
2. Cracked hose.
3. Worn piston seal.
Brake drags.
1. Rusty moving parts.
Symptom and possible causes Remedy
Bleed air.
Replenish fluid to normal lever;bleed
air.
Replace with correct fluid.
Replace.
Replace.
Tighten to specified torque.
Replace.
Replace.
Clean and lubricate.