Having assured himself of slack and brake conditions, he should have no hesitancy in advancing the throttle quickly into even the 8th notch to get the train moving. While the load current will be high, the control limits it to a value corresponding to approximately the maximum short time rating as shown on the loadmeter. The important thing is to get the locomotive moving and thus keep to a minimum the length of time during which heavy load current is applied to the motors before they start to turn. Adhesion Loss Detection System 1. In the event of a wheel slip while locomotive is in motoring, power is automatically reduced in proportion to the severity of the slip.
Power is reapplied as the slip is arrested.
This action will be evidenced by oscillation of the loadmeter. When wheel slip control functions for any reason, sand is automatically applied until the slip is arrested. In event of repetitive slips, manual sanding may be used. Throttle should be reduced until warning stops. A continuous wheel slip warning may indicate a locked axle.