Hitachi ZAXIS 70LC User Manual

CONTENTS
Change Hydraulic Oil .................................. 7-29
Suction Filter Cleaning ................................ 7-29
Replace Hydraulic Tank Oil Filter................ 7-32
Replace Pilot Oil Filter................................. 7-34
Replace Swing Drain Filter Element ........... 7-35
Replace Air Breather Element..................... 7-36
Check Hoses and Lines .............................. 7-37
Service Recommendations for
Hydraulic Fittings................................... 7-40
E. Fuel System ................................................ 7-42
Drain Fuel Tank Sump ................................ 7-44
Check Water Separator .............................. 7-45
Replace Fuel Filter ...................................... 7-46
Clean Feed Pump Strainer.......................... 7-48
Check Fuel Hoses....................................... 7-49
F. Air Cleaner .................................................. 7-50
Clean the Air Cleaner Element.................... 7-50
G. Cooling System ........................................... 7-52
Check Coolant Level ................................... 7-53
Check and Adjust Fan Belt Tension............ 7-53
Change Coolant .......................................... 7-54
Clean Radiator Interior ................................ 7-54
Clean Radiator and Oil Cooler Core ........... 7-55
Clean Oil Cooler Front Screen .................... 7-55
Clean Air Conditioner Condenser ............... 7-55
H. Electrical System......................................... 7-56
Batteries ...................................................... 7-56
Replace Batteries........................................ 7-60
Replacing Fuses ......................................... 7-61
Additional Fuse Box (Optional) ................... 7-62
I. Miscellaneous ............................................. 7-63
Check Bucket Teeth.................................... 7-63
Change Bucket............................................ 7-65
Convert Bucket Connection Into
Face Shovel .......................................... 7-66
Adjust the Bucket Linkage .......................... 7-67
Remove the Travel Levers.......................... 7-68
Check and Replace Seat Belt ................... 7-68
Check Windshield Washer Fluid Level ....... 7-68
Check Track Sag ........................................ 7-69
Adjust Track Sag......................................... 7-69
Loosen the Track ........................................ 7-70
Tighten the Track ........................................ 7-70
Clean and Replace Air Conditioner Filter .... 7-71
Replace Filter .............................................. 7-71
Check the Air Conditioner ........................... 7-73
Clean Cab Floor .......................................... 7-75
Check Injection Nozzle................................ 7-76
Retighten Cylinder Head Bolt ...................... 7-76
Inspect and Adjust Valve Clearance ........... 7-76
Check Fuel Injection Timing........................ 7-76
Check Starter and Alternator....................... 7-76
Change Water Pump Grease ..................... 7-76
Measure Engine Compression Pressure .... 7-76
Check Tightening Torque of Bolts
and Nuts................................................ 7-77
HYDRAULIC CIRCUIT AND
ELECTRICAL CIRCUIT
HYDRAULIC CIRCUIT ZAXIS70, 70LC, 85US ...8-1
HYDRAULIC CIRCUIT ZAXIS80SB, 80SBLC.....8-2
Electrical Circuit ZAXIS70/70LC/80SB/
80SBLC/85US Electrical Diagram .................8-4
ZAXIS70/70LC/80SB/80SBLC/
85US 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
Installing Vandal-Proof Covers ..........................10-3
Help Prevent Crime ...........................................10-4
Record Identification Numbers ..........................10-4
Keep Proof of Ownership...................................10-4
Park Indoors Out Of Sight..................................10-4
When Parking Outdoors ....................................10-5
Reduce Vandalism.............................................10-5
Report Thefts Immediately.................................10-5
TROUBLESHOOTING
Engine ...............................................................11-1
Electrical System ...............................................11-6
Mode Selection ..................................................11-8
Control Levers ...................................................11-9
Hydraulic System ...............................................11-9
SPECIFICATIONS
Specifications (ZAXIS70, 70LC, 85US) ...........12-1
Working Ranges (ZAXIS70, 70LC)....................12-2
Working Ranges (ZAXIS85US) .........................12-3
Shoe Types and Applications
(ZAXIS70, 70LC) .........................................12-4
Shoe Types and Applications (ZAXIS85US) .....12-5
Specifications (ZAXIS80SB, 80SBLC) .............12-6
Working Ranges (ZAXIS80SB, 80SBLC) ..........12-7
Shoe Types and Applications
(ZAXIS80SB, 80SBLC)................................12-8
Sound Level Results (2000/14/EC) ...................12-9
OPTIONAL ATTACHMENTS AND
DEVICES
Blade Lever........................................................13-1
Precautions for Blade Operation........................ 13-1
Avoid Hitting Blade with Front-End Attachment . 13-2
Avoid Hitting Blade with Bucket .........................13-2
Avoid Striking the Blade into a Rock..................13-2
Specifications
(ZAXIS70, 70LC, 85US with Blade).............13-4

Hitachi ZAXIS 70LC Specifications

General

Brand	Hitachi
Model	ZAXIS 70LC
Category	Excavators
Language	English