Unit Components
Front View of Unit (T-890 shown, other units similar).
Engine Compartment Components T-590 and T–690 Units 
(T-890, T-1090, UT-1290 similar).
| 1. | Engine Oil Dipstick (on side of engine) | 6. | Alternator | 
| 2. | Engine | 7. | Dehydrator (Filter-Drier) | 
| 3. | Coolant Expansion Tank | 8. | Compressor | 
| 4. | Coolant Overflow Bottle | 9. | Base Controller On/Off Switch | 
| 5. | Electric Motor | 
Front View of Unit
Engine Compartment Components
| 1. | Engine Oil Dipstick (on side of engine) | 6. | Alternator | 
| 2. | Engine | 7. | Dehydrator (Filter-Drier) | 
| 3. | Coolant Expansion Tank | 8. | Compressor | 
| 4. | Coolant Overflow Bottle | 9. | Base Controller On/Off Switch | 
| 5. | Electric Motor | 
