CONTENTS ZAXIS470H -3 (Backhoe) ..............................................................6-24 ZAXIS450LC -3 (Backhoe) ............................................................6-28 ZAXIS470LCH -3 (Backhoe) .........................................................6-32 ZAXIS500LCH -3 (Backhoe) .........................................................6-36 ZAXIS520LCH -3 (Backhoe) .........................................................6-40 Retracting or Extending the Side Frame ..............................6-44 Retracting the Side Frame .........................................................6-45 Extending the Side Frame .........................................................6-46 Change Coolant .....................................................................7-59 Clean Radiator/ Oil Cooler/ Inter Cooler/ Fuel Cooler Core .....................................................................7-60 Clean Oil Cooler Front Screen ...........................................7-60 H.
Air Conditioner ........................................................................7-61 Clean and Replace Air Conditioner Filter Clean Filter ....................................................................7-62 Check Refrigerant (Gas) Quantity ....................................7-64 Check Compressor Belt Tension .......................................7-64 Clean Condenser Core .........................................................7-65 Check Looseness at Each of Fastened Areas ................7-65 Check in-season and Off-season ......................................7-66 I.
Electrical System ........................................................................7-67 Batteries ....................................................................................7-68 Replace Batteries ...................................................................7-71 Replacing Fuses ......................................................................7-72 Fuse Box ....................................................................................7-72 Additional Fuse Box ..............................................................7-72 J.
Miscellaneous ............................................................................7-74 Check Bucket Teeth ...............................................................7-75 Change Bucket .......................................................................7-78 Adjust the Bucket Linkage (Backhoe) ............................7-79 Remove the Travel Levers ...................................................7-80 Check and Replace Seat Beltcheck .................................7-80 Check Windshield Washer Fluid Level ............................7-80 Check Track Sag .....................................................................7-81 Clean Cab Floor --- As Necessary .....................................7-83 Check Tightening Torque of Bolts and Nuts ................7-84 Check O-rings in Bucket Joints .........................................7-97 Retighten Cylinder Head Bolt ...........................................7-98 Inspect and Adjust Valve Clearance ................................7-98 Check Fuel Injection Timing ..............................................7-98 Measure Engine Compression Pressure ........................7-98 Check Starter and Alternator ............................................7-98 Check Water Pump ................................................................7-98 MAINTENANCE Correct Maintenance and Inspection Procedures ..............
7-1 Check the Hour Meter Regularly ............................................... 7-2 Use Correct Fuels and Lubricants ............................................. 7-2 Prepare Machine for Maintenance ........................................... 7-3 Hood and Access Covers .............................................................. 7-4 Periodic Replacement Of Parts .................................................. 7-5 Maintenance Guide ....................................................................... 7-6 A. Greasing .......................................................................................
7-9 Automatic Lubrication --- If Equipped ...........................7-10 Front Joint Pins (Backhoe) ..................................................7-12 Swing Bearing .........................................................................7-14 Electric Grease Gun --- If Equipped .................................7-15 Swing Internal Gear ..............................................................7-19 B.
Engine Oil ...................................................................................7-20 Engine Oil Level ......................................................................7-21 Change Engine Oil ...............................................................7-22 Replace Engine Oil Filter .....................................................7-22 C. Transmission Oil .......................................................................7-24 Swing Reduction Gear .........................................................7-25 Travel Reduction Gear ..........................................................7-26 D.
Hydraulic System ....................................................................7-28 Inspection and Maintenance of Hydraulic Equipment ................................................................................7-29 Check Hydraulic Oil Level ...................................................7-31 Drain Hydraulic Oil Tank Sump .........................................7-32 Change Hydraulic Oil ...........................................................7-33 Suction Filter Cleaning .......................................................7-33 Replace Hydraulic Oil Tank Filter ......................................7-36 Replace Pump Drain Filter ..................................................7-37 Replace Pilot Oil Filter ..........................................................7-38 Replace Air Breather Element ...........................................7-39 Check Hoses and Lines ........................................................7-40 Service Recommendations for Hydraulic Fittings ............7-43 E.
Fuel System ...............................................................................7-45 Drain Fuel Tank Sump ..........................................................7-46 Check Water Separator ........................................................7-47 Replace Fuel Main Filter Element .....................................7-50 Replace Fuel Pre-filter Element ........................................7-51 Clean Feed Pump Strainer .................................................7-52 Check Fuel Hoses ...................................................................7-53 F.
Air Cleaner ...................................................................................7-54 Clean the Air Cleaner Outer Element .............................7-54 Replace the Air Cleaner Outer and Inner Elements ...7-54 G. Cooling System ........................................................................7-56 Check Coolant Level .............................................................7-58 HYDRAULIC CIRCUIT AND ELECTRICAL CIRCUIT Hydraulic System ............................................................................ 8-1 Main Circuit ......................................................................................
8-2 Electrical Circuit .............................................................................. 8-4 Electrical Diagram .......................................................................... 8-5 MAINTENANCE UNDER SPECIAL ENVIRONMENTAL CONDITIONS Maintenance Under Special Environmental Conditions ..
9-1 STORAGE Storing the Machine ....................................................................10-1 Removing the Machine from Storage ...................................10-2 TROUBLESHOOTING Engine ...............................................................................................11-1 Electrical System ...........................................................................11-5 Control Levers ................................................................................11-9 Hydraulic System ..........................................................................11-9