Content

General

• Safety hints
• Specifications

Structure and function

• Pump device
• Main control valve
• Swing device
• Travel device
• RCV lever
• RCV pedal

Electrical system

• Component location
• Electrical circuit (UP to -#1000)
• Electrical component specification
• Connectors
• Electrical circuit (#1001 and UP, TIER II)

Outline(UP to #1000)

• Mode selection system(UP to #1000)
• Automatic deceleration system
• Power boost system
• Travel speed control system
• Automatic warming up function
• Engine overheat prevention function
• Anti-restart system
• Self-diagnostic system
• Engine control system
• Eppr(electro proportional pressure reducing) valve
• Prolix switch(UP to #0179)
• Monitoring system
• Outline (#1001 and UP, TIER II)
• Mode selection system (#1001 and UP, TIER II)

Troubleshooting

• Before troubleshooting
• Hydraulic and mechanical system
• Electrical system
• Mechatronics system (UP to #1000)
• Mechatronics system (#1001 and UP, TIER II)

Maintenance standard

• Operational performance test
• Major components
• Track and work equipment

Disassembly and assembly

• Precaution
• Tightening torque
• Pump device
• Main control valve
• Swing device
• Travel device
• Rcv lever
• Boom, arm and bucket cylinder
• Undercarriage
• Work equipment

Component mounting torque

• Introduction guide
• Engine system
• Electric system
• Hydraulic system
• Undercarriage
• Structure
• Work equipment