hitachi — CONTENTS

CONTENTS Check and Replace Bucket Teeth.......................................7-73 Change Bucket.........................................................................7-75 Adjust Track Sag (Rubber Crawler) and Check for Damage.................................................................................7-76 Replace Rubber Crawler........................................................7-78 Check and Replace Seat Belt...............................................7-81 Clean Cab Floor (ZX26U-5A) (Cab equipped machine)...............................................................................7-82 Check, Clean and Function Check of Injection Nozzle.....................................................................................7-83 Inspect and Adjust Valve Clearance..................................7-83 Check and Adjust Injection Timing...................................7-83 Measure Engine Compression Pressure..........................7-83 Check Starter and Alternator..............................................7-83 Check Crankcase Breather....................................................7-83 Check Radiator Cap................................................................7-83 Tightening and Retightening Torque of Nuts and MAINTENANCE UNDER SPECIAL ENVIRONMENTAL CONDITIONS ....................................................................................9-1 Maintenance Under Special Environmental Conditions...9-1 Bolts........................................................................................7-84 STORAGE .........................................................................................10-1 Storing the Machine....................................................................10-1 TROUBLESHOOTING .................................................................11-1 Troubleshooting............................................................................11-1 SPECIFICATIONS ..........................................................................12-1 Std.

Specification..........................................................................12-1 Working Ranges............................................................................12-2 Bucket Types and Applications ZX17U-5A...........................12-3 Std.

Specification..........................................................................12-4 Working Ranges............................................................................12-5 Bucket Types and Applications ZX26U-5A...........................12-6 Noise Level Results.......................................................................12-7 Vibration Level...............................................................................12-7 Electric Fans....................................................................................12-7 Lifting Capacities..........................................................................12-8 OPTIONAL ATTACHMENT ........................................................13-1 Hydraulic Breaker, Hydraulic Crusher and Quick Coupler........................................................................................13-1 Attachment.....................................................................................13-2 Piping for Breaker and Crusher (Optional)...........................13-3 Attachment Pedal (Hydraulic Breaker) (Optional).............13-4 Precautions for Breaker Operation.........................................13-5 Attachment Pedal (Hydraulic Crusher) (Optional)............13-9 Precautions for Crusher Operation.......................................13-10 Numeric Keypad Lock (Optional)..........................................13-13 INDEX ...............................................................................................14-1