John Deere 304H Loader Operator’s Manual – PDF DOWNLOAD

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John Deere 304H Loader Operator’s Manual – PDF DOWNLOAD

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John Deere 304H Loader Operator’s Manual – PDF DOWNLOAD

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TABLE OF CONTENTS:

John Deere 304H Loader Operator’s Manual – PDF DOWNLOAD

Contents 5
Safety 9
304H Loader 9
Recognize Safety Information 10
Understand Signal Words 10
Follow Safety Instructions 10
Avoid Injury from Rollover Accidents Wear Your Seat Belt Do Not Attempt to Jump Clear of Tipping Machine—Serious or Fatal Crushing Injuries Will Result Mach 11
Avoid Injury from Backover Accidents Before Moving Machine, Be Sure All Persons Are Clear of Area Always Be Alert for Bystanders Moving into the Work Area Use Horn or Other Signal 12
Avoid Injury from Rollaway Accidents To Prevent Rollaway, Always Make Sure Machine Is Properly Secured Before Leaving Operator’s Seat Death or Serious Injury May Result if You Attem 13
Inspect Machine 13
Use Handholds and Steps 14
Prevent Machine Runaway 14
Use Seat Belt Properly 14
Maintain Seat Belt 15
Travel Safely 15
Drive Machine Safely 16
Operate Machine with Caution 16
Operating on Slopes 17
Carrying Loads 17
Avoid Power Lines 18
Beware of Exhaust Fumes 18
Keep Riders off Machine 18
Handle Fuel Safely—Avoid Fires 19
Prepare for Emergencies 19
Clean Trash from Machine 19
Protect Against Flying Debris 20
Wear Protective Clothing 20
Protect Against Noise 20
Handle Chemical Products Safely 21
Use Safety Lights and Devices 21
Keep ROPS Installed Properly 22
Warn Others of Service Work 22
Practice Safe Maintenance 23
Support Machine Properly 23
Remove Paint Before Welding or Heating 24
Avoid Heating Near Pressurized Fluid Lines 24
Avoid High Pressure Fluids 25
Clean the Machine Regularly 25
Service Cooling System Safely 26
Store Attachments Safely 26
Dispose of Waste Properly 26
Safety Signs 27
Safety Signs 27
Operator’s Station 33
Monitor Gauges, Indicators and Dash Switches 33
Side Console Switches 34
Warning Alarm 34
Battery Voltage Indicator 35
Low Engine Oil Pressure Indicator 35
Forward Direction Indicator 35
Reverse Direction Indicator 36
Hydraulic Oil Temperature Indicator 36
Park Brake Indicator 36
Clock, Hour Meter, and Speedometer 37
Monitor Messages 38
High Speed Indicator 38
Low Speed Indicator 39
Pilot Disable Indicator 39
Engine Air Filter Restriction Indicator 39
Engine Coolant Temperature Indicator 39
Seat Belt Indicator 40
High Beams ON Indicator 40
Turn Signal Indicator 40
Engine Preheat 40
Fuel Gauge 41
Engine Coolant Temperature Gauge 41
Boom and Bucket Control Lever 41
Quick Disconnect and Auxiliary Hydraulic Lever 42
FNR Lever and Speed Selector 42
Neutral Lock Latch 42
Turn Signal Lever 42
Pedals 43
Horn Button 43
Operating Front Windshield Wiper and Washer 44
Operating Rear Windshield Wiper and Washer 44
Adjusting Steering Column Tilt 44
Setting the Clock 45
Opening and Securing Side Door 45
Secondary Exit 46
Drive Lights 47
Work Lights—If Equipped 48
Heater Operation 49
Air Conditioner—If Equipped 49
Air Conditioner—If Equipped 49
Air Flow Control 50
Adjusting Seat 50
Cab Removal and Installation 51
4th Function Auxiliary Hydraulics—If Equipped 51
Pre Start Inspection 52
Inspect Machine Daily Before Starting 52
Operating the Engine 53
Check Instruments Before Starting 53
Cold Weather Start Up 54
Starting the Engine 55
Using Booster Batteries—12 Volt System 57
Check Instruments After Starting 58
Warm Up 58
Cold Weather Warm Up 59
Stopping the Engine 59
Driving the Machine 61
Driving on Public Roads 61
General Driving Precautions 61
Neutral Lock Latch 62
Shifting the Machine 62
Slowing and Stopping the Machine 63
Park Brake Switch 64
Parking the Machine 65
Lock All Compartments 65
Operating the Machine 66
Boom and Bucket Control Lever 66
Operating Quick Disconnect 67
Pilot Enable/Boom Down Switch 68
Brake/Inching Pedal 69
Boom Height Kickout Adjustment 70
Return to Dig Adjustment 71
Operating 4th Function Auxiliary Hydraulics—If Equipped 72
General Operating Tips 72
Turning the Machine 73
Excavating Banks or Stockpiles 73
Using the Loader Bucket 75
Backdragging 76
Backfilling 77
Truck Loading 78
Fork Attachment 79
Material Handler Arm Attachment 81
Transporting 83
Transporting Precautions 83
Loading Machine on a Trailer 83
Towing Procedure 85
Lifting the Machine 89
Fuels and Lubricants 90
Diesel Fuel 90
Lubricity of Diesel Fuel 90
Low Sulfur Diesel Fuel Conditioner 91
Diesel Fuel Storage 91
Fuel Tank 92
Diesel Engine Oil 92
Differentials and Final Drives Oil 93
Hydraulic System Oil 94
Service Brake Oil 94
Grease 95
Alternative and Synthetic Lubricants 96
Lubricant Storage 96
Mixing of Lubricants 97
Periodic Maintenance 98
Service Your Machine at Specified Intervals 98
Drain Hose Storage 98
Check the Hour Meter Regularly 99
Use Correct Fuels and Lubricants 99
Prepare Machine for Maintenance 100
Locking Machine Frame 101
Boom Lock 102
Opening Hood 103
Check Windshield Washer Fluid Level 104
Maintenance and Repair Record Keeping System 105
OILSCAN Plus,® CoolScan Plus® and 3 Way Coolant Test Kit 106
Service Intervals 107
Maintenance—As Required 110
Inspect and Replace V Belt(s) 110
Drain Fuel Filter Sediment 113
Clean Air Cleaner Elements 114
Inspect Element 115
Clean Dusty Primary Element 116
Lubricate Cab Door Hinges 116
Check Tire Pressure 117
Tire Pressures 118
Tighten Wheel Lug Nuts 118
Maintenance—Every 10 Hours or Daily 119
Check Coolant Level 119
Check Engine Oil Level 120
Clean Air Cleaner Dust Unloader Valve 121
Check Hydraulic Oil Level 121
Maintenance—Every 50 Hours 122
Lubricate Loader Linkage and Cylinder Pivots 122
Lubricate Gear Case to Front Axle Shaft 123
Lubricate Front and Rear Steering Cylinder Pivots 124
Lubricate Rear Steering Axle Pivots 124
Lubricate Oscillating Rear Axle 125
Lubricate Frame Hinge Pivot 125
Maintenance—Every 250 Hours 126
Clean Cab Air Filter 126
Change Engine Oil and Replace Filter 127
Check Brake Oil Level 129
Maintenance—Every 500 Hours 130
Check Coolant Conditioner 130
Check and Clean Hydraulic Oil Cooler and Radiator 131
Replace Primary Fuel Filter 132
Replace Final Fuel Filter 133
Bleeding the Fuel System 134
Check Air Intake Hose 134
Replace Hydraulic Oil Return Suction Filter 135
Check Battery Electrolyte Level and Terminals 136
Check Rear Differential and Gear Case Oil Level 138
Check Front Differential Oil Level 138
Check Front and Rear Final Drives Oil Level 139
Check Brake/Inching Pedal Linkage Adjustment 139
Maintenance—Every 1000 Hours 140
Check Park Brake and Service Brake Pads 140
Replace Cab Air Filter 140
Speed Control Linkage Adjustment 141
Change Rear Differential and Gear Case Oil 142
Check and Adjust Engine Valve Lash 142
Clean Engine Crankcase Vent Tube 144
Replace Air Cleaner Elements 145
Replace Air Cleaner Dust Unloader Valve 146
Replace Hydraulic Tank Breather 146
Change Rear Final Drive Oil 147
Change Front Differential and Front Final Drives Oil 148
Maintenance—Every 2000 Hours 149
Clean Hydraulic Oil Fill Strainer 149
Change Hydraulic System Oil 149
Maintenance—Every 3000 Hours 151
Draining the Cooling System 151
Diesel Engine Coolant 153
Filling the Cooling System 153
Replace Seat Belt 155
Maintenance 156
Test the Coolant Freeze Protection Level 156
Precautions for Alternator and Regulator 156
Service Batteries Carefully 157
Checking Electrolyte Specific Gravity 159
Using Battery Charger 160
Replacing Batteries 161
Removing Batteries 161
Replacing Fuses 162
Fuse (Blade Type) Color Codes 164
Engine Speeds 164
Checking Neutral Start System 165
Service Pilot Accumulator 165
Adding Attachments/Accessories to Rollover Protective Structure (ROPS) 165
Welding on Machine 166
Park Brake Adjustment 166
Service Brake Adjustment 167
Replace Marker Light and Drive Light Bulbs 168
Do Not Service Control Valves, Cylinders, Pumps or Motors 169
Keep ROPS Installed Properly 170
Brake/Inching Pedal Linkage Adjustment 171
Check Receiver/Dryer Moisture Indicator—If Equipped 173
Check Receiver Dryer Moisture Indicator—If Equipped 174
Hardware Torque Specifications 174
Metric Bolt and Cap Screw Torque Values 175
Additional Metric Cap Screw Torque Values 176
Unified Inch Bolt and Cap Screw Torque Values 178
Check Oil Lines and Fittings 179
Service Recommendations For Metric 24° O Ring Seal DIN 20078 180
Service Recommendations For Non Restricted Banjo (Adjustable) Fittings 182
Service Recommendations For O Ring Boss Fittings With Shoulder 184
Service Recommendations for Metric Series Four Bolt Flange Fitting 187
Service Recommendations For Inch Series Four Bolt Flange Fittings 188
Operational Checkout 189
Operational Checkout 189
Monitor Messages 189
Key Switch, Monitor Indicator and Gauge Checks 190
Power Train and Engine Linkages, Neutral Start Switch, and Reverse Warning Alarm Checks 193
Brake System Checks 195
Steering System Checks 197
Driving Checks 198
Hydraulic System Checks 200
Accessory and Vandal Protection Checks 204
Cab Component Checks 208
Troubleshooting 213
Using Troubleshooting Charts 213
Monitor Service Codes 214
Engine 215
Hydrostatic System 224
Differential and Axle 228
Service Brake 229
Driveline 230
Park Brake 231
Hydraulic System 232
Steering 236
Hydraulic Fan Motor and Pump 238
Heater System 239
Air Conditioning—If Equipped 240
Storage 242
Prepare Machine for Storage 242
Monthly Storage Procedure 243
Machine Numbers 245
Record Product Identification Number (PIN) 245
Record Engine Serial Number 245
Record Gear Case Serial Number 245
Record Hydrostatic Pump Serial Number 245
Record Front Axle Serial Number 246
Record Rear Axle Serial Number 246
Record Hydrostatic Motor Serial Number 246
Specifications 247
304H Loader Specifications 247
Drain and Refill Capacities 249
Crime Prevention Tips 250
Help Prevent Crime 250
Record Identification Numbers 250
Keep Proof of Ownership 250
Park Indoors Out of Sight 250
When Parking Outdoors 251
Reduce Vandalism 251
Report Thefts Immediately 252
Checklists 259
Service Intervals 259

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