BRAKE & PLANETARY GP 1076688 - Caterpillar

Illustration 1 g03075756
Illustration 2 g02350785
Remove connection hose (1) on the engine. Also remove the drain plug (2). Open the drain cock or remove the drain plug on the radiator. Allow the coolant to drain into a suitable container.
Properly dispose of the drained material. Obey local regulations for the disposal of the material.
Dispose of used engine coolant properly or recycle. Various methods have been proposed to reclaim used coolant for reuse in engine cooling systems. The full distillation procedure is the only method acceptable by Caterpillar to reclaim the used coolant.
Alternative Drain Plug
The cylinder coolant can be drained from the plug below the oil cooler. Refer to illustration 3. If the alternative drain plug (3) is removed, the O ring seal must be replaced. Tighten the drain plug to a torque of 35 N m (25 lb ft).
Illustration 3 g03081697Flush
Flush the cooling system with clean water in order to remove any debris.
Install connection hose. Clean the drain plugs. Install the drain plugs and tighten securely.
Do not fill the cooling system faster than 5 L (1.3 US gal) per minute to avoid air locks.Cooling system air locks may result in engine damage.
Fill the cooling system with a mixture of clean water and Caterpillar Fast Acting Cooling System Cleaner. Add 0.5 L (1 pt) of cleaner per 15 L (4