About Hydrill Specialty Systems

Mixer Preparation:

Water jet cleaning is only performed on mixer drums which can rotate. When full loads caused by emergency or driver error transpire, or breakdown of central mixers occur traditional pneumatic chipping is recommended.

1. Hoppers must be raised to allow the tool access to the drums interior. Some hoppers on rear loaders must be notched to allow clearance. This is performed by the owner unless otherwise specified. All associated pins, bolts, or other hardware should otherwise be free from concrete for easy removal.

2. Air cylinders will most likely be disconnected at one clevis end. Replacement pins or other hardware should be available for reconnection if required. Pins, lines, or bolts can be cut unless otherwise directed by the facility manager.

Dealing with Heavy Accumulations:

To eliminate the possibility of equipment damage to the cleaning tool or mixer, personnel remain at drum controls throughout the entire cleaning process to stop rotation if required. Occasionally debris larger than can be discharged become dislodged rather than fractured during the cleaning process. This can occur when a large volume of material is permitted to set up in the drum at a singular location. If this condition occurs, the drum is immediately stopped to a avoid damage. Entry through the inspection hatches is made to section the concrete into pieces that can be traditionally discharged. In this event, all required safety precautions are observed, documented, and archived for review.