hitachi — ZX225USR-3 CLASS DR. ZX MONITOR INDICATING VALUES

OPERATIONAL PERFORMANCE TEST / Standard T4-2-41 Item Reference Value Measured Value Remarks First Second Third Average PUMP 1 PUMP CONTROL PRESSURE (MPa) ∗ Control Lever in Neutral 1.02 ∗ Boom Raise 3.53 When relieving ∗ Boom Lower - ∗ Arm Roll-in 3.56 When relieving ∗ Arm Roll-Out 3.60 When relieving ∗ Bucket Roll-Out 3.84 When relieving ∗ Bucket Roll-In 3.82 When relieving Boom Raise + Arm Roll-In + Bucket Roll-In Combined ∗ Operation 3.53 When relieving PUMP 2 PUMP CONTROL PRESSURE (MPa) ∗ Control Lever in Neutral 1.05 ∗ Boom Raise 3.41 When relieving ∗ Boom Lower - ∗ Arm Roll-in 3.36 When relieving ∗ Arm Roll-Out 3.41 When relieving ∗ Bucket Roll-Out 1.05 When relieving ∗ Bucket Roll-In 1.05 When relieving Boom Raise + Arm Roll-In + Bucket Roll-In Combined ∗ Operation 3.36 When relieving