CONTENTS Seat Back Box.................................................................................1-15 Emergency Exit (ZX26U-5A) (Cab equipped machine)...1-16 Seat Belt...........................................................................................1-17 Room Lamp (ZX26U-5A) (Cab equipped machine)..........1-17 TRANSPORTING ..............................................................................6-1 Transporting by Road.....................................................................6-1 Loading/Unloading on a Truck...................................................6-2 Fastening Machine for Transporting.........................................6-5 Unloading...........................................................................................6-6 Lifting Machine.................................................................................6-7 BREAK-IN ...........................................................................................2-1 Breaking in New Machine.............................................................2-1 MAINTENANCE ................................................................................7-1 Correct Maintenance and Inspection Procedures...............7-1 Check the Hour Meter Regularly................................................7-2 Layout..................................................................................................7-3 Maintenance Guide Table.............................................................7-4 Preparations for Inspection and Maintenance......................7-7 Access Covers....................................................................................7-8 Maintenance Guide......................................................................7-14 Periodic Replacement of Parts.................................................7-18 Kind of Oils......................................................................................7-19 A.
Greasing......................................................................................7-22 OPERATING THE ENGINE ............................................................3-1 Inspect Machine Daily Before Starting.....................................3-1 Before Starting Engine...................................................................3-2 Starting the Engine.........................................................................3-3 Check Instruments After Starting Engine...............................3-5 Using Booster Battery.....................................................................3-6 Stopping the Engine.......................................................................3-8 DRIVING THE MACHINE ..............................................................4-1 Travel Levers (ZX17U-5A)..............................................................4-1 Travel Levers and Pedals (ZX26U-5A).......................................4-3 Travel Mode Pedal (ZX17U-5A)...................................................4-5 Travel Mode Switch (ZX26U-5A).................................................4-6 Traveling..............................................................................................4-7 Traveling on Soft Ground..............................................................4-8 Raise One Track by Using Boom and Arm...............................4-9 Towing Machine............................................................................4-10 Operating in Water or Mud.......................................................4-11 Precautions for Traveling on Slopes.......................................4-12 Parking the Machine on Slopes...............................................4-13 Parking the Machine....................................................................4-13 Front Joint Pins.........................................................................7-22 Bucket and Link Pins..............................................................7-22 Swing Post and Others..........................................................7-22 Blade Pins (ZX26U-5A)...........................................................7-24 Swing Bearing...........................................................................7-25 Swing Internal Gear................................................................7-26 Control Lever Universal Joint..............................................7-26 B.
Engine..........................................................................................7-27 Engine Oil Level.......................................................................7-27 Change Engine Oil..................................................................7-28 Replace Engine Oil Filter.......................................................7-28 C.
Transmission..............................................................................7-31 OPERATING THE MACHINE ........................................................5-1 Control Lever (ISO Pattern)...........................................................5-1 Boom-Swing Pedal..........................................................................5-2 Blade Lever.........................................................................................5-3 Precautions for Blade Operation................................................5-4 Side Frame Extend / Retract Lever (ZX17U-5A only)...........5-5 Pilot Control Shut-Off Lever.........................................................5-7 Warming Up Operation.................................................................5-9 Warming Up in Cold Weather......................................................5-9 Operating Backhoe......................................................................5-10 Grading Operation.......................................................................5-11 Avoid Abusive Operation...........................................................5-12 Avoid Excavation Using Upperstructure and/or Boom Travel Reduction Gear...........................................................7-31 D.
Hydraulic System.....................................................................7-34 Check Hydraulic Oil Level.....................................................7-38 Drain Hydraulic Oil Tank Sump...........................................7-39 Change Hydraulic Oil.............................................................7-40 Clean Suction Filter.................................................................7-40 Replace Full-Flow (Return) Filter Element......................7-44 Replace Pilot Oil Filter Element..........................................7-46 Check Hoses and Lines..........................................................7-48 E.
Fuel System.................................................................................7-54 Recommended Fuel...............................................................7-54 Check Fuel Level......................................................................7-55 Check Water Separator..........................................................7-56 Drain Fuel Tank Sump............................................................7-57 Replace Fuel Filter Element..................................................7-58 Check Fuel Hoses.....................................................................7-59 F.
Air Cleaner...................................................................................7-60 Swing Power..............................................................................5-12 Avoid Driving Bucket Teeth into Ground.............................5-13 Avoid Striking With Bucket........................................................5-13 Boom Cylinder may Hit Blade...................................................5-14 Avoid Hitting Blade With Bucket.............................................5-15 Avoid Colliding Blade Against Rocks.....................................5-15 Avoid Colliding Boom Cylinder With Track..........................5-15 Precautions for Installing Wide Bucket or Special Type Air Cleaner Element................................................................7-60 G.
Cooling System.........................................................................7-61 Bucket..........................................................................................5-15 Use Correct Track Shoe...............................................................5-16 Using Rubber Crawler.................................................................5-17 Avoid other than Specified Machine Operations..............5-19 Shackle Bracket Usage................................................................5-20 Emergency Boom Lowering Procedure................................5-21 Precautions for After Operations............................................5-24 Check Coolant Level...............................................................7-62 Check and Adjust Fan Belt Tension...................................7-63 Change Coolant.......................................................................7-65 Clean Radiator and Oil Cooler Core..................................7-67 H.
Electrical System......................................................................7-68 Battery.........................................................................................7-68 Replacing Fuses.......................................................................7-72 I. Miscellaneous.............................................................................7-73