OPERATIONAL PERFORMANCE TEST / Standard T4-2-2 Performance Test Perform- ance Stan- dard Remarks Reference Page HYDRAULIC CYLINDER CYCLE TIME sec Backhoe Boom Raise Boom Lower Arm Roll-In Arm Roll-Out Bucket Roll-In Bucket Roll-Out 4.7±0.4 2.9±0.4 4.5±0.4 3.5±0.4 3.7±0.4 3.3±0.4 3.6 m Arm 2.9 m3 (PCSA heaped) Bucket, Bucket empty 670LCH-3: 4.4±0.3 670LCH-3: 2.7±0.3 670LCH-3: 4.4±0.4 670LCH-3: 3.4±0.4 T4-4-12 DIG FUNCTION DRIFT CHECK mm/5 min Backhoe Boom Cylinder Arm Cylinder Bucket Cylinder Bucket Bottom 5 or less 18 or less 27 or less 150 or less 3.7 m Arm 3.5 m3 (PCSA heaped) Bucket, Bucket loaded T4-4-14 CONTROL LEVER OPERATING FORCE N (kgf) Boom Lever Arm Lever (ISO Lever Pattern:
Swing Lever) Bucket Lever Swing Lever (ISO Lever Pattern: Arm Lever) Travel Lever Bucket Open Pedal Bucket Close Pedal 16.0 (1.6) or less 13.0 (1.3) or less 13.0 (1.3) or less 16.0 (1.6) or less 28.0 (2.9) or less 60.0 (6.1) or less 60.0 (6.1) or less Hitachi Lever Pattern T4-4-15