Hitachi 4HK1 Workshop Manual page 9

1. Forward
2. Upward
3. Operating section or operating direction
4. Detail of a particular part
5. Detailed view from A
6. Arrow indicating a dimension
7. Arrow indicating a cross-section
8. Outside air or cold air
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Service Information Guide (All) 14A-3
9. Gas or warm air
10. Mixing of outside air and gas or mixing of cold
air and warm air
11. Rotational direction
12. Apply oil
13. Apply grease
14. Apply liquid gasket