Contents Page No.
Torque Specification 1-1
Technical Data 2-1
Battery Testing 2-2
Schematic Diagram 2-3
Layout
Operator’s Cab 3-1
Right Console 3-2
Left Console 3-4
Monitor 3-5
Control, Function, Operation 3-6
Engine Control
Basic Operation 4-1
Stepping Motor 4-1
Throttle Related Function 4-3
Stop Motor Function 4-6
Redundancy (back-up) Throttle Control 4-8
Automatic Engine Adjustment 4-9
Idling Control 4-10
Revolution Control for each Mode 4-11
Control of Engine Speed for Breaker Operation 4-12
Engine Auto Warm-up 4-13
Detection of Throttle Motor Assy Defect 4-14
Engine Reverse Rotation Prevention 4-14
Pump Control
Schematic 5-1
Flow Chart 5-3
Boom Lowering Speed Regulation 5-4
Cushioned Boom Starting 5-5
Pressure Increasing System 5-7
3 Speed Travel and Max Flow Cut 5-10
Soft/Hard Switch 5-14
Power Supply Cut Delay 5-15
Swing Brake/Swing Lock 5-17
Lever Lock 5-21
Travel Warning 5-23
Power Transistor Protection 5-24
Display Monitor 5-25
Throttle Motor
Throttle Motor and Throttle Link Replacement 6-1
Automatic Adjustment 6-3
Initial Set-up of the Controller for Machine Identification 6-3
Revolution Sensor
Installation 7-1
Self Test 8-1
Fault Finding
Fault Diagnosis 9-1
Emergency Engine Stop 9-4
Refuel 9-5
Coolant Refill 9-6
Air Cleaner Clogged 9-7
Low Engine Oil Pressure 9-8
Engine Oil Filter 9-9
Fluid Overheat, water, oil 9-10
Battery Charging 9-12
Electrical System, Message Fault 9-13
Engine Problem 9-16
Sensor Resistance Valve 9-19
Electrics
9803/6410 Issue 2*
Section C Section C
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