OPERATIONAL PERFORMANCE TEST / Standard P-Q Control by Pump Control Pilot Pressure Signal (REFERENCE: Measured at Test Stand) Rated Pump Speed: ZW220: 2170 min -1 (rpm) ZW250: 2240 min -1 (rpm) Hydraulic Oil Temperature:
50 ± 5 ° C (122 ± 41 ° F) MPa (kgf/cm ) T4GB-04-02-002 Pump Control Pressure Pi1 Pi2 T4-2-12 A B C L/min Flow Rate ZW220 ZW250 Pump Control Pressure (Pi1－Pi2) MPa (kgf/cm2, psi) Flow Rate L/min (gpm) Pump Control Pressure (Pi1－Pi2) MPa (kgf/cm2, psi) Flow Rate L/min (gpm) A 0.39+0.01 (4+0.1 , 57+1.5 ) -0 -0 -0 271±3 (172±0.8) 0.49+0.01 (5+0.1 , 71+1.5 ) -0 -0 -0 291±3 (77±0.8) B 1.47±0.05 (15±0.5, 214±7) 80±2 (21±0.5) 1.47±0.05 (15±0.5, 214±7) 100±2 (26±0.5) C 1.67+0.01 (17+0.1 , 243+1.5 ) -0 -0 -0 36±3 (10±0.8) 1.67+0.01 (17+0.1 , 243+1.5 ) -0 -0 -0 55±3 (15±0.8)