Re ROCKCRETER OPTIMIX 1.5, Operator'S Manual, Page: 8 / 24

OPERATORS MANUAL
FOR
ROCKCRETER OPTIMIX 1.5
PAGE 4
proposed material characteristics before attempting a production
procedure.
3.5 General Procedures
1. Before attempting to mix and pump production materials, it is important
to rinse and charge the pump hopper with sufficient water to
thoroughly flush the pump and all grout lines. This is to purge the
grouting system of any residual materials or scale that may exist.
2. Once that is completed, remove the grout hose from the pump and
drain out all water by elevating one end, or by progressively elevating
the entire hose, at one end and proceeding to the other.
3. Mix slurry composed of Portland cement in approximate proportions of
25 litres of water to ½ a bag of cement, and pump this through the
grouting system. This is to remove any residual water from the hose,
lubricating it for the production material to follow. Now the production
grout may be mixed and pumped immediately behind the slurry mix.
4. The slurry mix may be retrieved in a bucket.
NOTE: DO NOT attempt to pump production material through a dry
hose. Occasionally, no matter how conscientious an operator may
be, a hose will get plugged. Once this happens, the only sure way to
remove the plug is to empty it of material. Beating on it with a
hammer or running over it with a vehicle will not usually be
successful. A prudent operator will be prepared for such
eventuality.