MODEL 66-80 VIBRATORY DRIVER/EXTRACTOR
IV. MAINTENANCE AND ADJUSTMENTS
F. SEVERE CONDITIONS
1. The service intervals specified are based on normal operating conditions.
Operation under unusual conditions require some adjustments in servicing
intervals.
2. When the average temperature is above 80°F (26°C) or below -10°F (-23°C),
reduce service intervals to one half of those specified in Sections C through E.
3. When operating in the presence of dust or sand, reduce service time intervals
by one-half of those specified.
4. When operating in excess of twelve hours per day, reduce service time
intervals by one-half of those specified.
5. When operating in air with high salt or moisture, the servicing intervals need
not usually be changed. However, the unit should be inspected weekly to
determine if additional servicing be required. Also, have hydraulic oil tested
quarterly.
6. During stand-by or inactive period, the servicing intervals may be twice those
specified above. The unit should be exercised every week. Also, refer to the
Caterpillar OPERATION GUIDE.
IV-3
