Name: Kubota KX027
Brand: Kubota
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KX027-4 - Valid from serial no. 52158

KX030-4 - Valid from serial no. 50740

COMPACT EXCAVATOR

MODEL

KX027-4

KX030-4

OPERATING INSTRUCTIONS

RG268-8135-6 - Original - 01/2019

Table of Contents3
Abbreviations9
General Symbols10
General Information11
Foreword11
EC Declaration of Conformity12
Date of Issue of the Operating Instructions12
Operating Personnel12
Location of the Operating Instructions13
Spare Parts14
Safety Rules15
Basic Safety Instructions15
Duties, Liability and Warranty15
Safety Symbols16
Approved Use17
Unapproved Use17
Special Duties of the Owner18
Noise Emission and Vibration19
Danger, Warning and Safety Labels on the Machine19
Safety Devices28
Locking the Controls28
Engine Stop Knob28
Protective Structure Canopy and Cab29
Emergency Hammer30
Hazards Coming from the Hydraulic System30
Fire Protection31
Recovery, Loading and Transport33
Safety Rules for Recovery33
Safety Rules While Loading with a Crane33
Safety Rules for Transport34
Recovery35
Hoisting the Excavator with a Crane35
Transport on a Flat Bed Trailer37
Description of the Excavator39
Dimensions39
Specifications41
Identification of the Excavator46
Serial # of the Machine46
Identification of the Engine46
Standard Equipment47
Assembly and Functions49
Component Overview49
Operator's Place50
Left Control Console50
Drive Levers and Control Pedals51
Right Control Console52
Display and Control Unit53
Other Equipment at the Operator's Place55
Interior Lighting (Cab Version)55
Fuse Box55
Tool Compartment56
Cup Holder56
12-V Socket56
Other Equipment to be Found on the Machine57
Main Battery57
Battery Isolator57
Return Change Valve for Direct Return Flow57
Tank Filler Neck and Fill Level Monitor58
Main Fuses58
Rear View Mirror58
Heating and Ventilation (Cab Version)59
Hydraulic Oil Tank60
Coolant Radiator and Hydraulic Oil Radiator60
Engine Compartment61
Operation63
Safety Rules for Operation63
Safety for Children64
Guiding the Operator64
Working in the Vicinity of Overhead Power Lines65
Working in the Vicinity of Underground Power Lines65
Initial Operation65
Getting on the Excavator66
Explanation of the Display Indications66
Setting the Clock67
Running in the Excavator68
Special Maintenance Instructions68
Pre-Operational Services68
Walk-Around Inspection68
Dust Valve - Cleaning69
Engine Oil Level - Check69
Coolant Level - Check69
Coolant Radiator and Oil Cooler - Check70
V-Belt - Check70
Exhaust System Leakage - Check71
Hydraulic Oil Level - Check71
Water Separator - Check71
Bucket Bolt and Bucket Linkage Bolt - Grease72
Swing Bracket - Grease72
Other Greasing Points - Grease73
Fuel Level - Check74
Washer System Liquid Level (Cab Version) - Check74
Electrical Instrumentation - Check74
Setting up the Workplace75
Opening and Closing the Cab Door (Cab Version)75
Opening and Closing the Windows (Cab Version)76
Adjusting the Operator's Seat77
Rear View Mirrors Adjustment78
Seat Belt78
Operating the Excavator79
Safety Instructions for Starting the Engine79
Starting the Engine79
Stopping the Engine81
Observation of the Displays after Starting and During Operation81
Driving with the Excavator84
Driving Uphill and Downhill88
Stopping on Gradients88
Notes for Rubber Crawler Operation89
Operating the Controls During Excavation Work90
Note on Using Wider and Deeper Buckets90
Operating the Dozer91
Overview of Control Lever Functions91
Operating the Boom92
Operating the Arm93
Operating the Bucket94
Swivelling the Swivel Frame95
Swinging the Boom95
Operating the Auxiliary Port96
One Way Hold Operation (KX027-4 HI, KX030-4 HI)99
Operating Modes (KX027-4 HI, KX030-4 HI)100
Setting the Flow Rate (KX027-4 HI, KX030-4 HI)101
Return Change Valve for Direct Return Flow105
Relieving Pressure from the Hydraulic System106
Releasing Pressure from the Auxiliary Ports (KX027-4 HI, KX030-4 HI)107
Placing out of Operation109
Operating Other Equipment at the Operator's Place110
Operating the Heating System (Cab Version)110
Operating the Wiper/Washer System (Cab Version)112
Operating the Interior Light (Cab Version)113
Operating the Rotary Beacon (Accessories)113
Operating the 12 V Plug113
Operating the Working Lights114
Operating the Battery Isolator114
Cold Weather Operation115
Necessary Preparations Prior to the Winter Season115
Operation During the Winter Season115
Jump-Starting the Excavator116
Operating in Emergency Situations117
Engine Stop Knob117
Manual Lowering of the Front Attachments117
Maintenance118
Filling up the Washer System118
Checking the Antifreeze Strength of the Coolant118
Refilling the Coolant119
Refuelling the Excavator120
Fill Level Monitor When Refuelling120
Bleeding the Fuel System121
Replacing the Fuses121
Fuse Layout of the Fuse Box122
Main Fuses123
Cleaning the Excavator123
Replacing the Bucket124
Anti-Theft System124
Black (Individual) Key125
Red Key (for Registering)125
The Key System125
Registering a Black Key for the Machine126
Troubleshooting129
Safety Rules for Troubleshooting129
Troubleshooting: before Operation129
Troubleshooting: Operation130
Troubleshooting: Display Indications132
Maintenance137
Safety Rules for Maintenance137
Personnel Requirements138
Repair Work on the Machine138
Maintenance Intervals138
Maintenance Interval Display138
Operator Maintenance Chart140
Skilled Personnel Maintenance Chart142
Recommended Lubricants144
Make the Maintenance Points Accessible146
Opening/Closing the Engine Compartment Cover146
Opening/Closing the Side Cover146
Opening and Closing the Left Service Cover147
Opening/Closing the Right Ventilation Grille147
Maintenance Work for the Operator148
Every 50 Hours of Operation148
Fuel Tank - Drain148
Battery Service149
Battery - Check149
Battery - Load149
Battery - Change150
Swivel Gear - Grease151
Crawler Tension - Check/Adjust151
Crawler Tension - Check152
Crawler Tension - Adjust153
Water Separator - Cleaning153
Every 200 Hours of Operation155
Swivel Bearing - Grease155
Fresh Air Filter - Check/Clean155
Air Filter Element - Check/Clean156
Coolant Hoses and Hose Clamps - Check157
Fuel Lines and Air Intake Hoses - Check157
Servicing by Skilled Personnel158
Every 250 Hours of Operation158
V-Belt - Adjust158
Pilot Valve - Grease158
Every 500 Hours of Operation159
Engine Oil and Oil Filter - Change159
Engine Oil - Drain159
Engine Oil Filter - Change159
Engine Oil - Fill160
Drive Unit Oil - Change160
Fuel Filter Cartridge - Change161
Return Filter - Change162
Every 1000 Hours of Operation163
Hydraulic Oil - Fill/Change163
Hydraulic Oil - Drain163
Hydraulic Oil - Fill164
Suction Filter - Change165
Heating Pipes and Hoses - Check165
In-Line Filter - Change166
Fresh Air Filter - Change166
Air Filter Element - Change167
Pilot Circuit Filter - Change167
Every 2 Years169
Coolant - Change169
Bolted Joints - Check171
Tightening Torque for Screws171
Tightening Torque for Hose Clamps171
Tightening Torque for Hydraulic Hoses172
Tightening Torque for Hydraulic Pipes172
Tightening Torque for Hydraulic Adapters172
Safety Inspection173
Taking out of Service and Storage175
Safety Rules for Taking out of Service and Storage175
Storage Conditions175
Measures before Taking out of Service175
Measures During Taking out of Service175
Start-Up after Taking out of Service176
Lifting Capacity of the Excavator177
Constructive Calculation of Lifting Capacity177
Lifting Attachment178
Load Suspension Device179
Max. Lifting Capacity When Rotating up to 360180
Accessories191
KUBOTA Rotary Beacon191
KUBOTA Pipe Safety Valve191
KUBOTA Overload Warning System192
KUBOTA Quick Coupling Systems and Attachments192
KUBOTA Bucket Accessories192

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Kubota KX027 Specifications

General

Max Digging Depth	2740 mm
Transport Width	1400 mm
Operating Weight	2590 kg
Transport Length	4230 mm
Travel Speed	4.5 km/h
Bucket Capacity	0.06 - 0.07 m³

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