OPERATIONAL PERFORMANCE TEST / Standard T4-2-21 PERFORMANCE TEST DESIGNATION ZX270-3 class (Performance Standard) Remarks Reference Page CONTROL LEVER OPERATING FORCE N (kgf, lbf) HITACHI lever pattern T4-4-18 Boom Lever 16 (1.6, 3.6) or less Arm Lever (ISO Lever Pattern: Swing Lever) 13 (1.3, 2.9) or less Bucket Lever 13 (1.3, 2.9) or less Swing Lever (ISO Lever Pattern: Arm Lever) 16 (1.6, 3.6) or less Travel Lever 28 (2.8, 6.3) or less CONTROL LEVER STROKE mm HITACHI lever pattern T4-4-20 Boom Lever 97±10 Arm Lever (ISO Lever Pattern: Swing Lever) 82±10 Bucket Lever 82±10 Swing Lever (ISO Lever Pattern:
Arm Lever) 97±10 Travel Lever 120±10 BOOM RAISE/SWING sec 3.9±0.4 3.11 m arm 1.1 m3 (PCSA heaped) bucket, Bucket: empty T4-4-22 Bucket Teeth Height: H (Mono Boom) mm (2-Piece Boom) 6700 or more 5800 or more BOOM RAISE/ARM ROLL-IN sec (5.5±0.5) 3.11 m arm 1.1 m3 (PCSA heaped) bucket T4-4-24 HYDRAULIC SYSTEM PRIMARY PILOT PRESSURE MPa (kgf/cm2, psi) T4-5-1 Engine: Fast Idle 4.0+1.0 -0.5 (41+10 , 582+145 ) -5 -73 Value indicated on Dr. ZX Engine: Slow Idle 3.8+1.0 -0 (39+10 , 552+145 ) -0 -0 Value indicated on Dr. ZX SECONDARY PILOT PRESSURE MPa (kgf/cm2, psi) T4-5-3 (Engine: Fast Idle (noraml) and Slow Idle) 3.4 to 4.0 (35 to 41, 494 to 582) Value indicated on Dr. ZX (Lever:
Full stroke) SOLENOID VALVE SET PRESSURE MPa (kgf/cm2, psi) Value Indicated On Dr. ZX±0.2 (2, 29) T4-5-5 MAIN PUMP DELIVERY PRESSURE MPa (kgf/cm2, psi) 0.8+1.2 -0.5 (8.1+12 , 116+174 ) -5 -73 In neutral, Value indicated on Dr. ZX T4-5-8