Daily Maintenance Draining
- Start the engine and charge the system with air.
 
- Pull the cable attached to the reservoir
drain valve (manual type) on the bottom of the supply reservoir.
 
- After the water and contaminants stop draining, release the cable. The
reservoir drain valve (manual type) will close.
 
Complete Service Draining
- Block the wheels.
 
- Apply the parking brake.
 
- Drain the supply reservoir.
 
On each reservoir pull the reservoir drain valve cable until the reservoir
drain valve opens. Hold the cable until all the air is drained.