Develon DX270WMH-7 Material Handler Operation and Maintenance Manual (950106-03629A-EN) (1001 and Up)
This DX270WMH-7 lives in rough spots—scrap yards, recycling plants, log yards—working long days loading trucks and sorting piles. This manual helps you set a maintenance rhythm so the machine stays predictable: what to check every day, what to service after so many hours, and what you absolutely don’t stretch. Say you’re in peak scrap season; instead of guessing, you’ll know when to trace a hydraulic leak, when to bleed the fuel system, and when it’s safe to keep running and just schedule it for the weekend.
Applications & Use Cases
- Set up a daily walk‑around: you’ll inspect boom hoses, check slew area, verify fluid levels, and catch problems before a cylinder or swivel joint ruins your shift.
- Plan weekly and monthly services so you can route grease, filters, and oil changes around your busiest loading days instead of shutting down mid-job.
- Use the fault and warning procedures to isolate electrical issues, test sensors, and avoid just throwing parts at a problem.
- Align your attachment changes and undercarriage checks with the manual’s intervals, so pins, bushings, and tires usually wear evenly instead of failing early.
- Train new operators to run it the same way every time—start-up, shutdown, warm-up—so the engine and hydraulics generally last longer.
FAQ
Q: Is this manual searchable on a laptop or tablet, or am I stuck flipping pages?
A: It’s typically a searchable PDF, so you can jump to sections fast, but you can still print the bits you use most in the shop.
Q: Can I print just the service routines to keep in the cab or job trailer?
A: Yes, most folks print the maintenance schedules and key procedures, slip them in plastic sleeves, and keep the full file on a computer for deeper checks.
Safety Note
Always lock out the upper structure and relieve hydraulic pressure before you inspect, test, or work around the boom and attachment.
Develon DX270WMH-7 Material Handler Index:
- DX270WMH-7
- Revision
- Table of Contents
- Foreword
- Intended Use
- Engine and Emission Control System Maintenance
- Machine Capacity
- Attachments
- Product Identification Number (PIN)
- Engine Identification
- Your Machine Serial Numbers
- Safety Messages
- 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
- Rollover 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
- Starting Engine
- Swinging or Traveling
- Lifting and Digging
- Towing
- Attachment
- Equipment Lowering with Engine Stopped
- Engine Stop
- Parking Machine
- Service Brake
- 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
- 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
- Start/Stop Button
- Starter Switch (If Equipped)
- Smart Key
- Engine Speed Control Dial
- Jog Switch Control Panel
- HVAC (Heating, Ventilation and Air Conditioning) Control Panel
- Cruise Control Switch
- Ram Lock Switch
- Parking Brake Switch
- Warning Light Switch (If Equipped)
- Outrigger Selector Switch (If Equipped)
- Outrigger Control Lever
- Cabin Elevating Lever
- Air Compressor Switch (If Equipped)
- Cabin Elevating Switch
- Aftertreatment System Switch
- Multifunction Keypad
- Rotating Switch
- Shear Switch
- One Touch Deceleration Button
- Horn Button
- Breaker/Booster Button
- Joystick One Touch Function Button
- FNR Selector Switch
- Display Monitor
- Around View Monitoring (AVM) Monitor (If Equipped)
- Steering Console
- Travel Speed Selector Switch
- Quick Coupler Switch (If Equipped)
- Auxiliary Mode Switch
- Emergency Start Mode Switch
- Auxiliary FNR Switch
- Auxiliary Travel Selector Switch
- USB Charger
- 12V Power Socket
- 24V Power Socket
- Safety Lever
- Photo Sensor
- Hour Meter
- Micro Phone (If Equipped)
- 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. Machine Control System Setting Button / Activation Indicator
- 7. Audio Display
- 8. Main Warning Lamp
- 9. Digital Clock
- 10. Favorites Button
- 11. Main Information Selector Button
- 12. Main Information Indicator
- 13. Power Mode Selector Button
- 14. Power Mode Indicator
- 15. Operating Mode/Flow Setting Selector Button
- 16. Auto Idle Selector Button
- 17. Menu Selector Button
- 18. Back Button
- 19. Camera Mode Selector / ESC Button
- 20. Jog Switch
- 21. 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
- Machine Control System
- HVAC (Heating, Ventilation and Air Conditioning) Operation
- Location of Vents
- Control Panel
- Operation
- Automatic Temperature Control Button
- Mode Selector Button
- Air Conditioner Button
- Temperature Control Button
- Fan Speed Selector Buttons
- OFF Button
- Defroster Button
- Air Inlet Selector Button
- Memory Function
- Additional Operating Instructions
- 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 Electrical Devices
- Cabin Light
- Battery Disconnect Switch
- Pilot Cutoff Switch
- Circuit Breaker (60A, 80A)
- Smart Junction Box
- DAB (Digital Audio Broadcasting) Audio
- 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 Cover
- Control Valve Upper Cover
- Wheel Chocks
- 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
- Boost Starting or Charging Engine Batteries
- 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
- Before Traveling
- Over the Road Traveling Procedures
- Parking
- Travel Problems
- Cruise Control
- Operating Instructions
- Engine Speed Control
- Emission Control System
- After Treatment System
- Mode Selection
- Work Levers (Joysticks) (ISO Pattern)
- Change Machine Control Pattern By Selector Valve (If Equipped)
- Work Levers (Joysticks) (BHL Pattern)
- Intelligent Floating Boom Control (If Equipped)
- Smart Power Control (SPC)
- Working in Water
- Parking Excavator
- Towing Procedure
- Hydraulic Attachments (If Equipped)
- Lifting Objects
- Lifting Objects with Quick Coupler
- Equipment Lowering with Engine Stopped
- Preservation/Storing Machine
- Inspection, Maintenance and Adjustment
- Maintenance Information
- Machine Setup Position for Maintenance
- Maintenance Handling Access
- Entering/Leaving/Climbing On Machine
- Handling Oil, Fuel, DEF (AdBlue®), Coolant
- Oil
- Fuel
- DEF (AdBlue®)
- Engine Oil
- 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
- Correct Tire Pressure and Signs of Damage or Abnormal Wear – Check and Inspect
- Outrigger Pins (For First 100 Hours) – Lubricate
- Boom, Arm and Front Attachment Pins – Lubricate
- Elevating Cabin Linkage – Lubricate
- Engine Oil Level – Check
- Hydraulic Oil Level – Check
- Fuel Level – Check
- DEF (AdBlue®) Tank Level – Check
- Fuel Prefilter and Water Separator – Check, Drain
- Swing Reduction Gear Oil Level – Check
- Coolant Level – Check
- Window Washer Liquid Level – Check
- Cooling Fan Blade – Inspect
- Air Intake System and Emission Control System – Check
- Seat Belt – Inspect
- Mirrors – Check
- Structure – Inspect
- All Switches and Travel Alarm (If Equipped) – Check
- Exterior Lights, Horn, Control Console Indicator, Gauge Panel – Check
- Overall of Engine Condition – Check
- All Controls and Linkages – Check
- Pipes and Hoses – Check
- AVM (Around View Monitoring system) (If Equipped) – Check
- Brake System – Test
- 50 Hour / Weekly Service
- Perform All Daily Service Checks
- Arm and Bucket Joint Pins (Straight Arm) – Lubricate
- Arm and Bucket Joint Pins (Gooseneck Arm) – Lubricate
- Elevating Cabin Linkage – Lubricate
- Swing Bearing – Lubricate
- Outrigger Pins – Lubricate
- Front Axle Pin – Lubricate
- Fuel Tank Water and Sediment – Drain
- Engine Fan Belt – Check
- Bolts and Nuts – Inspect
- 250 Hour / Monthly Service
- Perform All Daily and 50 Hour Service Checks
- Boom and Arm Joint Pins (Straight Arm) – Lubricate
- Boom and Arm Joint Pins (Gooseneck Arm) – Lubricate
- Engine Fan and Alternator Belts – Check
- Air Compressor Filter (If Equipped) – Clean
- Hydraulic Oil Return Filter – Replace
- Pilot Filter – Replace
- Brake 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
- Swing Gear and Pinion – Lubricate
- Engine Oil and Filter – Replace
- Air-Conditioning Outer Filter – Clean
- Air-Conditioning Inner Filter – Clean
- Cooling System – Clean
- Driveshaft – Lubricate
- Front Axle Steering Knuckle – Lubricate
- Air Cleaner Outer Filter – Clean
- Air Compressor Filter (If Equipped) – Replace
- Front Axle Case Oil (After First 500 Hours) – Drain and Refill
- Rear Axle Case Oil (After First 500 Hours) – Drain and Refill
- Hub Reduction Gear Oil (After First 500 Hours) – Drain and Refill
- Transmission Fluid (After First 500 Hours) – Drain and Refill
- Change Swing Reduction Device Oil (Drain and Refill After First 500 Hours)
- 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
- Swing Reduction Gear Oil – Change
- Brake Filter – Replace
- Air-Conditioner Outer Filter – Replace
- Air-Conditioner Inner Filter – Replace
- Fuel Cap Filter – Replace
- Engine – Check and Adjust**
- 2,000 Hour / Yearly Service
- Perform All Daily, 50, 250, 500 and 1,000 Hour Service Checks
- Air Cleaner Outer and Inner Filter – Replace
- Coolant – Change
- Hydraulic Oil and Suction Filter – Replace
- Front Axle Case Oil – Drain and Refill
- Rear Axle Case Oil – Drain and Refill
- Hub Reduction Gear Oil – Drain and Refill
- Transmission Fluid – Drain and Refill
- 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
- 4,500 Hour / Biennial Service
- DEF (AdBlue®) Filter – Replace
- DEF (AdBlue®) Breather Filter – Replace
- 8,000 Hour / 4 Year Service
- 12,000 Hour / 6 Year Service
- Hose In-service Lifetime Limit (European Standard ISO 8331 and EN982 CEN)
- Air-Conditioning System
- Check Control Panel
- Check Air Conditioner Hoses
- Check Condenser
- Check Magnetic Clutch
- Check Belt Tension
- Electrical System
- Engine Cooling System
- General
- Antifreeze Concentration Tables
- Table of Standards for Allowed Tap Water
- Fuel Transfer Pump (If Equipped)
- Handling of Accumulator
- Pilot Accumulator
- Brake Accumulator
- Tires and Wheels
- Check Tire for Damage
- Tire Changing Procedure
- Venting and Priming Hydraulic System and Other Components
- Main System Pump
- Hydraulic Cylinders
- Swing Motor
- Transmission
- Brake Line
- General Venting
- Maintenance in Special Conditions
- Transportation
- Loading and Unloading
- Warning for Counterweight and Front Attachment Removal
- Counterweight
- Short Distance Self-powered Travel
- Trailer Loading/Unloading Procedures
- Lifting Machine
- Specification
- Specification
- Overall Dimensions
- Working Range
- Gooseneck Arm
- Straight Arm
- Excavator Rated Lift Capacity Tables
- Approximate Weight of Workload Materials
- Index
Develon
