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Group 1 Introduction
Operational Performance Tests....................T4-1-1
Preparation for Performance Tests...............T4-1-2
Group 2 Standard
Performance Standard (ZX170W-3).............T4-2-1
Performance Standard (ZX190W-3).............T4-2-6
Main Pump P-Q Diagram ...........................T4-2-12
Sensor Activating Range ............................T4-2-14
Group 3 Engine Test
Engine Speed ...............................................T4-3-1
Engine Compression Pressure ....................T4-3-4
Valve Clearance ...........................................T4-3-6
Lubricant Consumption ................................T4-3-9
Group 4 Excavator Test
Travel Speed ................................................T4-4-1
Brake Control Function.................................T4-4-3
Parking Brake Control Function ...................T4-4-4
Swing Speed ................................................T4-4-5
Swing Function Drift Check ..........................T4-4-6
Swing Motor Leakage...................................T4-4-8
Maximum Swingable Slant Angle.................T4-4-9
Swing Bearing Play ....................................T4-4-10
Hydraulic Cylinder Cycle Time ...................T4-4-12
Hydraulic Cylinder Drift Check ...................T4-4-14
Control Lever Operating Control Force ......T4-4-15
Control Lever Stroke...................................T4-4-16
Combined Operation Boom Raise/Swing
Function Check.........................................T4-4-17
OPERATIONAL
PERFORMANCE TEST
CONTENTS
CGBT-4-1
SECTION 4
Group 5 Component Test
Primary Pilot Pressure ................................. T4-5-1
Secondary Pilot Pressure ............................ T4-5-3
Solenoid Valve Set Pressure ....................... T4-5-4
Main Pump Delivery Pressure ..................... T4-5-6
Main Relief Set Pressure ............................. T4-5-8
Relief Pressure (When relieving Swing) .... T4-5-10
Overload Relief Valve Set Pressure .......... T4-5-12
Main Pump Flow Rate Measurement ........ T4-5-14
Swing Motor Drainage ............................... T4-5-24
Travel Motor Drainage ............................... T4-5-26
Steering Valve Relief Pressure .................. T4-5-28
Brake Pressure (Front and Rear) .............. T4-5-30
Brake Accumulated Pressure .................... T4-5-32
Brake Warning Set Pressure (Decrease) .. T4-5-34
Brake Warning Set Pressure (Increase) .... T4-5-36
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