Install shoe upper and lower return sprinNeedle nose pliers can be used to connect spring to each shoOperate lever to verify that shoes expand and retract properly.

• 安装蹄片上部和下部返回弹簧。使用针针嘴钳连接弹簧至每个蹄片。操作拉杆确认蹄片放开和收回正确。