992 WHEEL LOADER General Information Caterpillar

General Information
1.1. Hydraulic System
2.1. Cooling System
3.1. Cleaning Cooling System
4.1. Wiring Diagram
5.1. Refill Capacities
6.1. Serial Number Locations

Hydraulic System

Always lower all equipment before servicing hydraulic system.

Stop engine and wait at least 5 minutes before servicing filter elements.

Cooling System

Use clean water that is low in scale forming minerals - not softened water.

Never add coolant to an overheated engine. Allow engine to cool first.

Add AVSpare Rust Inhibitor to coolant except when using permanent-type anti-freeze containing rust inhibitors.

Check specific gravity of anti-freeze solution frequently in cold weather to assure adequate protection.

When draining cooling system, coolant should be warm and loader lever.

Cleaning Cooling System

1. Run engine 5 minutes. Stop engine and loosen filler cap to relieve pressure.

2. Remove filler cap.

3. Open drain valve and drain coolant.

4. Close drain valve and fill system with cleaning solution. *

5. Start and run engine 1/2hour. Stop engine and open drain valve.

6. Flush system with clean water until draining water is clear.

7. Close drain valve and fill system with neutralizing solution. **

8. Start and run engine 10 minutes. Stop engine and open drain valve.

9. Flush system with clear water.

10. Close drain valve and add coolant to proper level.

*1 lb. (0,45 kg) Sodium Bisulphate (NaHSO4) per 5 gal. (19 ltr.) water.

**1/2 lb. (0,23 kg) Sodium Carbonate Crystals (Na2CO3, 10H2O) per 10 gal. (37,9 ltr.) water.

NOTE: Most commercial cooling system cleaners may be used.

Wiring Diagram

Refill Capacities

Serial Number Locations