Hitachi ZAXIS 450LC-3, Operator'S Manual

Page: 284 / 477

MAINTENANCE
7-14
H. AIR CONDITIONER (See Page 7-85)
Parts Quantity
Interval (hours)
10 50 100 250 500 1000 2000
1. Circulating Air Filter
Cleaning 1
Replacement 1 When excessively restricted
Fresh Air Filter
Cleaning 1
Replacement 1
2. Check Refrigerant (Gas) Quantity 1
3. Check Compressor Belt Tension 1
4. Clean Condenser Core 1
5. Check Looseness at each of Fastened
Areas
—
6. Check In-Season and Off-Season — Preseason (once a year), Off-season (once a week)
I. ELECTRICAL SYSTEM (See Page 7-91)
Parts Quantity
Interval (hours)
10 50 100 250 500 1000 2000
1. Battery
Level Check 2 Every month
Specific Gravity 2 Every month
2. Replace Fuse — As required
J. MISCELLANEOUS (See Page 7-98)
Parts Quantity
Interval (hours)
10 50 100 250 500 1000 2000 4000
1. Check Bucket Teeth for Wear and Looseness —
2. Change Bucket — As required
3. Adjust Bucket Linkage 1 As required
4. Remove Travel Levers 2 As required
5. Check and Replace Seat Belt 1 Every 3 years (Replace)
6. Check Windshield Washer Fluid Level 1 As required
7. Check Track Sag 2
8. Clean Cab Floor — As required
9. Retighten Cylinder Head Bolts —
Y
As required
10. Inspect and Adjust Valve Clearance —
Y
11. Check fuel Injection Timing —
Y
As required
12. Measure Engine Compression Pressure —
Y
13. Check Starter and Alternator —
Y
14. Check Water Pump —
Y
15. Check and Replace EGR Device —
Y
As required
16. Check Tightening Torque of Bolts and Nuts —
HHH
17. Check O-rings in Bucket Joints —
f
NOTE:
HHH
Maintenance required only during first time check.
Y
Contract your authorized dealer for maintenance.