Develon DX800LC-7 Crawler Excavator Shop Manual (950106-02255_E_EN)
That DX800LC-7 usually lives in hard rock, deep trench, or quarry work—dusty site, long shifts, big loads. This shop manual’s for when you’re past quick fixes and you’re ready to tear major systems down and put them back together without guessing. Say you’ve got swing play and a nasty noise: this book walks you through how to strip the swing gear, inspect races and shims, trace wear patterns, then reassemble and torque in sequence so it doesn’t come back.
Applications & Use Cases
- Plan a full teardown of the boom, arm, or linkage, so you can lay parts out, route hoses correctly, and not lose track of shims or spacers.
- Trace a hydraulic issue by isolating sections, checking components on the bench, and then bleeding the system properly on reassembly.
- Verify undercarriage work—track frames, rollers, idlers—by following typical torque sequences and alignment checks so it tracks straight.
- Inspect swing and travel drives with the housings open, then test backlash and bearing preload as you button everything back up.
- Check engine and pump mounting, align couplings, and re‑torque in stages so you don’t crack housings or load shafts sideways.
FAQ
Q: Is this a PDF I can search on my laptop or tablet?
A: Yes, it’s typically a searchable PDF, so you can jump to systems and terms instead of flipping through every page.
Q: Can I print just the sections I need for the jobsite?
A: Usually, yes—you can print specific chapters so you can get them greasy in the container and keep the clean file on your computer.
Safety Note
Always support the upperstructure and attachments with rated stands or blocking before you work under anything you’ve just disassembled.
Develon DX800LC-7 Crawler Excavator Index:
- DX800LC-7
- Safety, Specification and Systems Operation
- Track Excavator Maintenance Safety
- Safety Instructions
- Safety Messages
- General
- Long Term Storage
- Maintenance
- Environment and Circumstances
- General Specifications
- General
- Component Locations
- Overall Dimensions
- Standard Specification
- Performance Tests
- Preparation for Performance Tests
- Operational Performance Standard Table
- Operational Performance Test
- Engine Specifications
- Safety Instructions
- Engine Specification
- Engine Performance Curves
- Tightening Torques
- Hydraulic Systems and Structure Specifications
- Safety Instructions
- Hydraulic System
- Swing Mechanism
- Travel System
- Under Carriage
- Structure
- General Maintenance Instructions
- Safety Instructions
- Welding Precautions and Instructions
- Hydraulic System – General Precautions
- Maintenance Service and Repair Procedure
- Hydraulic System Cleanliness and Oil Leaks
- Cleaning and Inspection
- Standard Torques
- Safety Instructions
- Torque Values for Standard Metric Fasteners
- Torque Values for Standard U.S. Fasteners
- Type 8 Phosphate Coated Hardware
- Torque Values for Hose Clamps
- ORFS Swivel Nut Recommended Torque
- Torque Values for Split Flanges
- Torque Wrench Extension Tools
- Loctite Applications
- Engine
- Safety Instructions
- General Information
- Product Information Section
- Operation Section
- Features and Controls
- Engine Diagnostics
- Engine Starting
- Engine Operation
- Engine Stopping
- Cold Weather Operation
- Maintenance Recommendations
- Fuel System
- Intake and Exhaust System
- Engine Control and Electrical System
- After Treatment System
- Systems Operation, Description and Inspection
- Safety Instructions
- General
- Main Oil Circuit
- Pilot Oil Circuit
- Return and Drain Oil Circuit
- Main system operation
- Pilot System Operation
- Components Operation, Description and Inspection
- Safety Instructions
- Main Pump
- Main Control Valve
- Swing Device
- Fan Pump
- Fan Motor
- Joystick Valve
- Travel Control Valve
- Solenoid Valve
- EPPR Valve (One or Two Way)
- Center Joint
- Travel Device
- Systems Operation and Description
- Safety Instructions
- General Schematics
- Power Supply
- Starting System
- Charging System
- AVM System
- Air Conditioning Unit
- EPOS system
- Gauge Panel System
- DAB Audio Troubleshooting
- Air Conditioner System
- Refrigerant System Repairs
- Troubleshooting
- Removal and Installation
- Engine
- Safety Instructions
- Before Removing and Installing
- ECU (Engine Control Unit)
- V-Belt
- Alternator
- Starter Motor
- DEF (adblue®) Heater
- Sensors – After Treatment
- Engine Assembly
- Hydraulic Systems and Structure
- Safety Instructions
- Before Removing And Instralling
- Main Pump
- Drive Coupling
- Undercovers
- Hydraulic Oil Tank
- Fuel Tank
- Swing Device
- Fan Pump
- Oil Cooler Fan Motor
- Joystick Valve (Work Lever)
- Travel Control Valve
- Center Joint
- Track Guard
- Travel Device
- Main Control Valve
- Cabin
- Electric and Electronic
- Safety Instructions
- Before Removing and Installing
- Battery Assembly
- EPOS Controller
- TMS Controller
- AVM Controller
- Microphone Controller
- Smart Key Controller
- Wiper Controller
- DC-DC Controller
- Cabin Photo Sensor
- Cabin Switches
- Around View Monitor
- Display Monitor
- Hour Meter
- Wiper Motor
- Troubleshooting Guide
- Wiring Harness Layout
- Safety Instructions
- Wiring Device
- Error Code
- Safety Instructions
- EPOS Error Code
- Engine Error Code
- Schematics
- Hydraulic Schematic
- Electric Schematic
- Main Harness
- Cabin Harness
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