Hitachi ZAXIS 450LC-3 Operator's Manual page 284

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