Develon DX380LC-7K Crawler Excavator Operation and Maintenance Manual (950106-02642CE) (10001 and Up)
Out on site, this DX380LC-7K’s usually digging foundations, loading trucks, or trenching in mud, dust, and cold mornings that never quite warm up. This operation and maintenance manual is about keeping that excavator predictable: you’ll know what to trace, check, and inspect every day, what to service at set hour marks, and what to leave alone till it actually needs attention. Picture this: you’re in peak season, operator says the boom feels slow; with this manual you can systematically isolate whether it’s an operator setting, a clogged filter, or a hydraulic issue before you lose a whole day.
Applications & Use Cases
- Set up a daily walk‑around routine so you check fluids, tracks, attachments, and leaks before anything fails on the job.
- Plan your periodic services so you can schedule filters, oils, and greasing around weather and contracts, not breakdowns.
- Use the troubleshooting flows to trace and verify electrical or hydraulic problems instead of just throwing parts at it.
- Follow the procedures to bleed, test, and align systems after repairs so the machine tracks straight and digs true.
- Route and secure hoses, guards, and wiring the way the factory intended, which usually stops repeat failures.
FAQ
Q: Is this manual searchable, or am I flipping pages all day?
A: The download’s typically a searchable PDF, so you can jump to sections or keywords fast on a laptop or tablet.
Q: Can I print just a few sections to keep in the cab?
A: Yes, most folks print the daily checks, lube chart, and basic troubleshooting so they’re handy on site and don’t wreck the whole manual.
Safety Note
Always relieve system pressure and verify the attachment’s on the ground before you get anywhere near the boom, stick, or lines.
Develon DX380LC-7K Crawler Excavator Index:
- DX380LC-7K
- Revision
- Table of Contents
- Foreword
- Intended Use
- Engine and Emission Control System Maintenance
- Machine Capacity
- Attachments
- Product Identification Number (PIN)
- Component Serial Numbers
- Engine Identification
- Your Machine Serial Numbers
- Safety Messages
- SCR Catalytic Converter
- EC Declaration of Conformity
- UK DECLARATION OF CONFORMITY
- Regulation (EU) 2017/654 Annex XV
- Engine Operation and Maintenance
- Malfunctions & Inducement
- DEVELON Fleet Management System General Information and Privacy Notice
- Safety
- Safety Decals
- Information and Location for Safety Decals
- Information and Location for Safety Decals (Continued)
- General
- Safe Operation is Operator’s Responsibility
- Know Your Machine
- Proper Work Tools and Attachments
- Pressurized Fluids
- Flying or Falling Objects
- Personal Protective Equipment (PPE)
- Correction of Machine Problems
- Crushing and Cutting
- Hot Coolant and Oils – Burn Prevention
- Fire and Explosion Prevention
- Fire Extinguisher and First-aid Kit (Emergency Medical Kit)
- Electrical System and Electrical Shock
- Roll-over Protective Structure (ROPS)
- Regulation 8.35(2) of the Mines Safety and Inspection Regulations (1995)
- Transportation
- Obey State and Local Over-the-Road Regulations
- Loading and Unloading
- Transporting Machine
- Operation
- Before Engine Starting
- Work Site
- Mounting/Dismounting
- Cleaning
- Operator Station
- Seat Belt
- Visibility Information
- Boost Starting or Charging Engine Batteries
- Starting Engine
- Swinging or Traveling
- Lifting and Digging
- Operation on Slopes
- Towing
- Attachment
- Equipment Lowering with Engine Stopped
- Engine Stop
- Parking Machine
- Long Term Storage
- Before Storage
- During Storage
- After Storage
- Maintenance
- Warning Tag
- Cleaning
- Proper Tools and Clothing
- Disassembling Precautions
- Use of Lighting
- Fire and Explosion Prevention
- Burn Prevention
- Rubber That Contains Fluorides
- Rubber and Plastics
- Welding Repairs
- Warning for Counterweight and Front Attachment Removal
- Lock Inspection Covers
- Working on Machine
- Accumulator
- Compressed Air
- Track Tension Adjustments
- Supports and Blocking for Work Equipment
- High-pressure Lines, Tubes and Hoses
- Battery
- Environment and Circumstances
- Work Site Areas Requiring Extra Caution
- High-voltage Cables
- Underground Operation
- Working in Water
- Working in Contaminated Environment
- Operation in Extreme Conditions
- Exhaust Ventilation
- Asbestos Information
- Silica Dust Information
- Disposal of Hazardous Materials
- Sound
- Vibration Information
- Operating Controls
- Component Locations
- Operator’s Area
- Operational Controls and Panels
- Start/Stop Button
- Smart Key
- Engine Speed Control Dial
- Jog Switch Control Panel
- HVAC Control Panel
- DAB Microphone (If Equipped)
- Wiper Control Panel
- 12V Power Socket
- 24V Power Socket
- USB Charger
- Safety Lever
- Travel Speed Selector Switch
- Light Switch
- Cabin Work Light Switch (If Equipped)
- After Treatment System Switch
- Mirror Heater Switch (If Equipped)
- Intelligent Floating Boom Switch (If Equipped)
- Buzzer Alarm Stop Switch (If Equipped)
- Overload Warning Switch (If Equipped)
- Warning Light Switch (If Equipped)
- Air Compressor Switch (If Equipped)
- Auto Grease System Switch (If Equipped)
- Rotating Switch (If Equipped)
- One Touch Deceleration Button
- Horn Button
- Shear Switch (If Equipped)
- Breaker/Booster Button
- Joystick One Touch Function Button
- Quick Coupler Switch (If Equipped)
- Auxiliary Mode Switch
- Emergency Start Mode Switch
- Display Monitor
- Around View Monitoring (AVM) Monitor (If Equipped)
- Micro Phone (If Equipped)
- Hour Meter
- Photo Sensor
- Display Monitor
- Functional Check
- Setting a Password
- 1. Fuel Gauge
- 2. DEF (AdBlue®) Level Gauge
- 3. Engine Coolant Temperature Gauge
- 4. Hydraulic Oil Temperature Gauge
- 5. Tachometer
- 6. Audio Display
- 7. Main Warning Lamp
- 8. Digital Clock
- 9. Favorites Button
- 10. Main Information Selector Button
- 11. Main Information Indicator
- 12. Power Mode Selector Button
- 13. Power Mode Indicator
- 14. Operating Mode/Flow Setting Selector Button
- 15. Auto Idle Selector Button
- 16. Menu Selector Button
- 17. Back Button
- 18. Camera Mode Selector / ESC Button
- 19. Jog Switch
- 20. Mode Symbol Display
- 21. Indicator Display
- 22. Display Warning Symbols
- Warning Pop-Up Messages
- User Menu
- User Menu – Access and Escape Methods
- Around View Monitoring (AVM) System
- Operating Conditions and Instructions
- Screen Components and View Modes
- Displaying Outlines of the Vehicle Area
- Proximity Alarm System
- Sensor Locations
- Sensor Operating Conditions and Settings
- Sensor Alarm Setting
- Operating Range and Display
- Heater and Air Conditioner Control Panel
- Location of Controls and Vents
- Control Panel
- Memory Function
- Additional Operating Instructions
- Audio System
- Stereo
- DAB (Digital Audio Broadcasting) Audio
- Miscellaneous Electrical Devices
- Cabin Light
- Safety Lever
- Circuit Breaker (50A, 80A)
- Fuse Boxes
- Seat Adjustment
- 1. Forward/Backward Adjustment
- 2. Adjusting Height of Seat and Depth of Cushion
- 3. Reclining Position Adjustment
- 4. Headrest
- 5. Lumbar Support Adjustment
- 6. Left and Right Control Stand Adjustment
- 7. Left and Right Control Stand Height Adjustment
- 8. Adjusting Height/Angle of Armrest
- 9. Seat Heater Switch
- 10. Seat Heating/Ventilation Switch (If Equipped)
- Seat Belt
- Seat Belt Locking and Unlocking
- Engine Emergency Stop Switch
- Emergency Exit Glass Breaking Tool
- Miscellaneous Convenience Devices
- Ceiling Cover
- Front Windows
- Door Side Latch
- Cabin Storage Compartments
- Sun Visor
- Sunglasses Case
- Cup Holder
- Storage Box
- Miscellaneous Access Covers and Doors
- Side Door
- Storage Box Door
- Engine Hood
- Air Gun and Compressor (If Equipped)
- Air Gun
- How to Use Air Compressor
- How to Connect Air Gun
- Operation
- To Operate a New Excavator
- Starting and Stopping Engine
- Inspection Before Starting Engine
- Operational Checks Before Starting Engine
- Engine Start
- Hydraulic System Warm-up
- Hydraulic System Warm-up – Cold Weather
- Stopping Engine
- Checks and Maintenance After Stopping Engine
- Wait to Disconnect Indicator
- Safety Lever
- Travel
- Automatic Travel Speed Control
- Travel Control Lever Operation
- General Travel Instructions
- Straight Travel Pedal (If Equipped)
- Operating Instructions
- Engine Speed Control
- Emission Control System
- After Treatment System
- Mode Selection
- Change Machine Control Pattern By Selector Valve (If Equipped)
- Work Levers (Joysticks) (ISO Pattern)
- Work Levers (Joysticks) (BHL Pattern)
- Intelligent Floating Boom Control (If Equipped)
- Smart Power Control (SPC)
- Operating Precautions
- Working in Water
- Escaping From Mud
- Parking Excavator
- Towing Procedure
- Attachments
- Bucket Replacement and Reversal
- Replacement
- Reversal (If Applicable)
- Hydraulic Attachments (If Equipped)
- Breaker Operation
- Shear Operation
- One-Way/Two-Way Valve Operation
- Rotating Operation
- Quick Coupler Operation
- Lifting Objects
- Lifting Objects with Quick Coupler
- Equipment Lowering with Engine Stopped
- Auto Grease System (If Equipped)
- Overview
- Location
- Lubricants
- Pump Display and Control Elements of Control Screen
- Pump Display Mode
- Pump Programming
- Maintenance
- Troubleshooting
- Inspection, Maintenance and Adjustment
- Maintenance Information
- Machine Setup Position for Maintenance
- Handling Oil, Fuel, DEF (AdBlue®), Coolant
- Oil
- Fuel
- DEF (AdBlue®)
- Grease
- Coolant and Water for Dilution
- Filters
- Electrical System Maintenance
- Recommend Fuel, Coolant, and Lubricant
- Lubrication
- Symbols for “Lubrication and Service Chart”
- Fluid Capacities
- Table of Recommended Lubricants
- Maintenance Intervals
- 10 Hour / Daily Service
- Boom, Arm and Front Attachment Pins – Lubricate
- Engine Oil Level – Check
- Hydraulic Oil Level – Check
- Fuel Level – Check
- DEF (AdBlue®) Tank Level – Check
- Pre Fuel Filter and Water Separator – Check
- Swing Reduction Gear Oil Level – Check
- Dust Net – Clean
- Coolant Level – Check
- Window Washer Liquid Level – Check
- Bucket Teeth and Side Cutters – Inspect
- Cooling Fan Blade – Inspect
- Air Intake System and Emission Control System – Check
- Seat Belt – Inspect
- AVM (Around View Monitoring) System (If Equipped) – Check
- Mirrors – Check
- Structure – Inspect
- All Switches and Travel Alarm (If Equipped) – Check
- Safety Lever – Check
- Exterior Lights, Horn, Control Console Indicator, Gauge Panel – Check
- Overall of Engine Condition – Check
- All Controls and Linkages – Check
- 50 Hour / Weekly Service
- Perform All Daily Service Checks
- Arm and Bucket Joint Pins – Lubricate
- Swing Bearing – Lubricate
- Fuel Tank Water and Sediment – Drain
- Air Compressor and Tank – Check
- Oil Bath Precleaner (If Equipped) – Check
- Engine Fan Belt – Check
- Track Assemblies (Links, Shoes, Rollers, Idlers) – Inspect
- 250 Hour / Monthly Service
- Perform All Daily and 50 Hour Service Checks
- Boom and Arm Joint Pin – Lubricate
- Engine Fan and Alternator Belts – Check
- Breaker Filter (If Equipped) – Replace
- Oil Bath Precleaner (If Equipped) – Change
- Hydraulic Oil Return Filter – Replace
- Pilot Filter – Replace
- Pin and Bushings of the Front End Attachment – Inspect
- Battery Fluid – Check
- Bolts and Nuts – Inspect
- Fuel System Hose Clamps – Inspect
- 500 Hour / 3 Month Service
- Perform All Daily, 50 and 250 Hour Service Checks
- Track Spring – Check
- Swing Gear and Pinion – Lubricate
- Engine Oil and Filter – Replace
- Air Compressor Filter (If Equipped) – Clean
- Air-conditioning Outer Filter – Clean
- Air-conditioning Inner Filter – Clean
- Cooling System – Clean
- Air Cleaner Outer Filter – Clean
- Final Drive Gear Oil – Check
- DEF (AdBlue®) Tank Filler Filter – Clean
- Final Drive Gear Oil – Change
- Swing Reduction Gear Oil – Change
- 1,000 Hour / 6 Month Service
- Perform All Daily, 50, 250 and 500 Hour Service Checks
- Swing Reduction Gear – Lubricate
- Hydraulic Oil Tank Breather Filter – Replace
- Hydraulic Oil Return Filter – Replace
- Fuel Prefilter and Water Separator – Replace
- Main Fuel Filter – Replace
- Pilot Filter – Replace
- Final Drive Gear Oil – Change
- Swing Reduction Gear Oil – Change
- Air-conditioning Outer Filter – Replace
- Air-conditioning Inner Filter – Replace
- Fuel Cap Filter – Replace
- DEF (AdBlue®) Filter – Replace
- DEF (AdBlue®) Breather Filter – Replace
- 2,000 Hour / Yearly Service
- Perform All Daily, 50, 250, 500 and 1,000 Hour Service Checks
- Centrifugal Oil Cleaner – Clean
- Oil Bath Precleaner (If Equipped) – Clean
- Air Cleaner Outer and Inner Filter – Replace
- Coolant – Change
- Hydraulic Oil and Suction Filter – Replace
- Alternator and Starter** – Check
- Rubber Antivibration Shock Mounts – Check
- Perform and Record Results of Cycle Time Tests
- Inspect Machine to Check for Cracked or Broken Welds or other Structural Damage
- Adjust Valve Clearance** – Check
- Head Bolt Torques – Check
- 4,000 Hour / Biennial Service
- Major Parts – Periodic Replacement
- 6,000 Hour / 3 Year Service
- 12,000 Hour / 6 Year Service
- Hose In-service Lifetime Limit (European Standard ISO 8331 and EN982 (CEN))
- Air-conditioning System
- Control Panel – Check
- Air Conditioner Hoses – Check
- Condenser – Check
- Magnetic Clutch – Check
- Bucket
- Bucket Tooth – Replace
- Bucket O-ring – Replace
- Electrical System
- Engine Cooling System
- General
- Antifreeze Concentration Tables
- Table of Standards for Allowed Tap Water
- Fuel Transfer Pump (If Equipped)
- Handling of Accumulator
- Track Tension
- Venting and Priming Hydraulic System
- Main System Pump
- Hydraulic Cylinders
- Swing Motor
- Travel Motor
- General Venting
- Maintenance in Special Conditions
- Transportation
- Loading and Unloading
- Warning for Counterweight and Front Attachment Removal
- Counterweight
- Lifting Machine
- Specification
- Standard Specification
- Overall Dimensions
- Disassembled Parts, Dimension and Weight
- Ground Pressure
- Digging Force
- Arm – Tearout Force
- Bucket – Breakout Force
- Working Range
- Excavator Rated Lift Capacity Tables
- Approximate Weight of Workload Materials
- Index
Develon
