Develon DX19Z-7K Mini Excavator Operation and Maintenance Manual (950106-04106A-EN) (1001 and Up)
This little DX19Z-7K usually lives in tight spots—backyards, driveways, small job sites where you’re trenching, setting lines, or cleaning up around foundations. This manual helps you set a maintenance rhythm so the machine starts, digs, and swings the same way every day, instead of surprising you when you’re buried in work. Picture this: you’re mid‑trench, customer watching, and a simple thing you didn’t check—like a loose track or low hydraulic oil—shuts you down. The book’s there to help you trace those problems before they happen.
Applications & Use Cases
- Set up a daily walk‑around so you check fluids, inspect hoses, and verify track tension before you even hit the key.
- Plan your service intervals so you know when to change filters, bleed fuel, and test safety switches during slower days, not in peak season.
- Trace and isolate small issues—odd noises, slow boom, sticky controls—using step‑by‑step checks before they turn into bigger failures.
- Learn how to align and route wear parts (like hoses and lines) so they don’t rub through on the house or blade over time.
- Use it to standardize how your crew operates the machine, so nobody abuses it with bad warm‑up or shutdown habits.
FAQ
Q: Is this manual searchable, or am I scrolling forever on a phone?
A: It’s typically a searchable PDF, so you can jump to sections by keyword on a phone, tablet, or laptop.
Q: Can I print just the pages I need for the jobsite?
A: Yeah, you can usually print specific sections—handy for keeping the lubrication chart or service schedule in the shop or truck.
Safety Note
Always kill the engine, remove the key, and verify everything’s at ground pressure before you inspect or work around the boom, arm, or bucket.
Develon DX19Z-7K Mini Excavator Index:
- DX19Z-7K
- Table of Contents
- Foreword
- Intended Use
- Engine and Emission Control System Maintenance
- Equipment Capacity
- Attachment
- Product Identification Number (PIN)
- Component Serial Numbers
- Engine Certification
- Machine Serial Numbers
- Safety Instructions
- Safety
- Safety Decals
- Safety Decals – Information and Location
- General
- Operator’s Responsibility – Safe Operation
- 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/TOPS)
- Falling Object Protective Structure (FOPS) (if equipped)
- 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
- Boost Starting or Battery Charging
- Engine Starting
- Swinging or Traveling
- Lifting and Digging
- Operation on Slopes
- Towing
- Attachment
- Equipment Lowering with Engine Stopped
- Engine Stop
- Parking Machine
- Long Term Storage
- Maintenance
- Warning Tag
- Inspection or Cleaning before Maintenance
- Use of Proper Tools
- 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
- Compressed Air
- Track Tension Adjustments
- Maintenance of the Underside
- 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 Gas
- Asbestos Information
- Silica Dust Information
- Disposal of Hazardous Materials
- Sound
- Vibration Information
- Operating Controls
- Component Locations
- Operator’s Area
- Operational Controls and Panels
- 1. Gauge Panel
- 2. Start Switch
- 3. Work Light Switch
- 4. Track Extension/Dozer Selection Switch
- 5. Travel Alarm Switch
- 6. Quick Coupler Selector Switch
- 7. Quick Coupler Operating Switch
- 8. Engine Speed Control Lever
- 9. Safety Lever
- 10. Horn Button (Type 1, if equipped)
- 11. Quick Coupler Operating Button (Type 1, if equipped)
- 12. Horn Button (Type 2, if equipped)
- 13. Quick Coupler Operating Button (Type 2, if equipped)
- 14. Shear Switch (Type 2, if equipped)
- 15. Travel Speed Selector Switch
- Gauge Panel
- Functional Check
- 1. Engine coolant temperature gauge
- 2. Fuel gauge
- 3. Charge warning light
- 4. Engine oil pressure warning light
- 5. Air cleaner clogging warning light
- 6. Preheat indicator light
- 7. Work light indicator light
- 8. High travel speed indicator light
- 9. Low travel speed indicator light
- 10. Quick coupler indicator light
- 11. LCD display
- 12. LCD selector button
- Miscellaneous Electrical Devices
- Safety Lever
- Circuit Breaker (50A)
- Fuse Box
- Seat Adjustment
- 1. Forward/Backward Adjustment
- 2. Reclining Position Adjustment
- 3. Seat Belt
- Engine Emergency Stop Switch
- Miscellaneous Convenience Devices
- Storage Compartment
- Cup Holder
- Miscellaneous Access Covers and Doors
- Operation
- To Operate a New Excavator
- Starting and Stopping Engine
- Checks Before Starting Engine
- Operational Checks Before Starting Engine
- Engine Starting
- Starting in Cold Weather
- Starting with a Booster Battery
- Warm-up operation
- Warm-up Operation in Cold Weather
- Engine Stop
- Checks and Maintenance After Stopping Engine
- Safety Lever
- Travel
- Automatic Travel Speed Control
- Travel Control Lever Operation
- General Travel Instructions
- Operating Instructions
- Controlling Engine Speed
- Work Levers (Joysticks)
- Dozer Blade Control Lever
- Track Extension Control Lever
- Boom Swing Pedal
- Operating Precautions
- Working in Water
- Escaping From Mud
- Parking Excavator
- Towing Procedure
- Attachment
- Bucket – Replace and Reverse
- Replace
- Reverse (If Applicable)
- Quick Coupler Operation
- Breaker Operation
- Shear Operation
- Operating Techniques
- Operation in Extreme Conditions
- Operation In Extreme Cold
- Operation in Extreme Heat
- Operation In Dusty and Sandy Areas
- Operation in Rainy or Humid Conditions
- Operation in Saltwater Areas
- Operation in High Places
- Operation During Electrical Storms
- Long Term Storage
- Before Storage
- During Storage
- After Storage
- Road Liners (Machine Equipped with Road Liner)
- Road Liners Information
- Warranty for Road Liners
- Using Road Liners
- Inspection, Maintenance and Adjustment
- Maintenance
- Machine Setup Position for Maintenance
- Maintenance Handling Access
- Entering/Leaving/Climbing On Machine
- Handling Oil, Fuel, and Coolant
- Oils
- Fuel
- Engine Oil
- Grease
- Coolant and Dilution Water
- Filters
- Servicing Electric system
- Recommended Fuel, Coolant, and Lubricant
- Lubrication
- “Lubrication and Maintenance Chart” Symbols
- Fluid Capacities
- Maintenance Intervals
- 10 Hour / Daily Service
- Grease Front Attachment Pins (for first 100 hours)
- Grease Dozer Blade Pin (for first 100 hours)
- Grease Swing Bearing (for first 100 hours)
- Engine Oil Level Check
- Check for Leaks in Hydraulic System
- Hydraulic Oil Tank Level Check and Refill
- Check for Leaks in Fuel System
- Fuel Level Check
- Water Separator Check and Water Drainage
- Coolant Level Check and Refill
- Fan Check
- Air Intake System Inspection
- Inspect Seat Belt for Proper Operation
- Inspect Structure for Cracks and Faulty Welds
- Check Operation of All Switches
- Check Operation of All Exterior Lights, Horn and Control Console Indicator and Monitor Lights
- When starting the engine, check its starting capability and observe the exhaust gas during startup. Also, confirm the operating status once it reaches normal operating temperature. Identify any abnormal noises.
- Check Operation of All Controls
- Inspect Hydraulic Oil Tank Breather and Clean Periodically
- Wash the radiator and oil cooler.
- Safety Lever
- 50 Hour / Weekly Service
- Perform All 10 Hour/Daily Service Checks
- Grease Arm, Bucket Joint Pins
- Grease Dozer Pins and Cylinders
- Grease Boom Swing Cylinder, Swing Gear, and Swing Bearing
- Grease Boom Swing Unit
- Draining Water from Fuel Tank
- Inspection of Fan Belt for Cracks, Wear, and Proper Tension (After the first 50 hours of use)
- Inspect Track Assemblies for Proper Tension and Loose, Worn or Damaged Parts (Track Links, Shoes, Rollers, Idlers)
- 250 Hour / Monthly Service
- Grease Boom and Arm Joint Pins
- Fan Belt Tension Inspection and Adjustment
- Fan Belt Damage Inspection and Replacement
- Engine Oil and Engine Oil Filter Replacement
- Replace Hydraulic Oil Return Filter (including Packing) (after first 250 hours of operation)
- Inspect Pin and Bushings of Front or Attachment Wear
- Check Battery Fluid
- Check for Loose or Missing Nuts or Bolts
- Fuel System Hose Clamp Inspection
- 500 Hour / 3 Month Service
- Perform 10, 50 Hour Service Checks
- Air Cleaner Outer Filter Cleaning
- Water Separator Replacement
- Main Fuel Filter Replacement (Type 1)
- Main Fuel Filter Replacement (Type 2)
- Check and Replenish the Oil Level of the Travel Reducer
- Check Track Adjuster and Grease Track Tension is Insufficient
- Replace Hydraulic Oil Return Filter (after first 50 hours)
- 1,000 Hour / 6 Month Service
- Perform 10, 50, 250 and 500 Hour Service Checks
- Change Oil in Travel Reducer (both Tracks)
- 2,000 Hour / Yearly Service
- Perform 10, 50, and 250 Hour Service Checks
- Air Cleaner Outer and Inner Filter Replacement
- Replace Hydraulic Fluid
- Coolant Replacement
- Inspect the alternator and starter.
- Check All mounting Rubbers for Anti- vibration
- Check Periodic Inspection Items and Record Results
- Check for Crack in Machine Structure and Damage to Weld Lines
- Adjust the intake and exhaust valve clearance if necessary.
- Check the tightening status of the cylinder head bolts.
- 4,000 Hour / 2 Year Service
- Main components: Periodic Replacement
- 12,000 Hour / 6 Year Service
- Hose In-service Lifetime Limit
- Bucket
- Bucket Tooth – Replacement
- Replace Bucket
- Replace Bucket O-ring
- Bucket Shim Assembly Procedure
- Track Tension
- Venting and Priming Hydraulic System
- Venting Main Pump
- Venting Cylinders
- Travel Motor Air Bleeding
- Venting Swing Motor
- Operation
- Electrical System
- Engine Cooling System
- Antifreeze Types
- Antifreeze Concentration Table
- Permissible Tap Water Standards
- Maintenance in Special Conditions
- Transportation
- Loading and Unloading
- Warning when Removing Counterweight / Canopy / Front
- Lifting Machine
- Specification
- Standard Specification
- Overall Dimensions
- Digging Force
- Working Range
- Excavator Rated Lift Capacity Tables
- Approximate Weight of Workload Materials
- Index
Develon
