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WS1213
OPERATION
GETTING READY FOR MIXING
Lay out forms for your concrete floor, patio, driveway, sidewalk, etc. The quality of concrete is directly related to the quality
of the cement paste. The quality of the paste, in turn, is directly related to the amount of water mixed with the cement. For a
given amount of cement, as the amount of mixing water is reduced, the strength of the paste increases, making the
concrete stronger and more durable. Calculate the proportions of your mix components (cement, sand and coarse
aggregate) according to the job specifications.
LOADING THE MIXER
Start the mixer. After drum has started rotating, pour about half of the water in the drum.
NOTE:
The drum may leak slightly when first used. This will stop after a few batches. Add aggregate (gravel) first then
cement and last sand. For mixing instructions, refer to the mixing guide below.
UNLOADING THE MIXER
Allow the entire mixture to mix for one full minute. Do not stop mixer from rotating. Dump concrete to either side by tilting
the handles in the direction required. Before reloading the mixer, slowly pour a pail of water over the lip of the drum,
permitting water to clean the inside of drum. When cleaned, dump water. Now you are ready for your next batch.
CARE OF MIXER
It is important to keep the inside of the mixing drum free of hardened concrete. After discharging the last batch of concrete
each day, add a pailful of water and two shovelfuls of gravel to the drum. This will scour the inside of the drum. Mix for about
two minutes, discharge and rinse the drum with water. Never permit concrete to harden on either the inside or outside of
drum.
EXTENSION CORDS-ELECTRIC MOTOR
The following size extension cords should be used for this mixer: length of cord, up to 100 ft -14 gauge wire; up to 200 ft -12
gauge wire; up to 300 ft -10 gauge wire; up to 400 ft - 8 gauge wire.
LUBRICATION & STORAGE
Lightly grease all moving parts – motor spindle, wheel axles and pedestal mounting shaft with SAE 30 engine oil.
For short term storage, clean the mixer and store in a dry place. If the mixer is not to be used for an extended period of time,
service mixer completely and store it in a dry place. Cover exposed metal surfaces with a thin coat of SAE 30 engine oil.
MIXING PRE-MIX CONCRETE
Needed:
1-1⁄4 gallons of water
(x1) 80 lb bag of pre-mix concrete
1. Start Mixer
2. Put in 1 gallon of water, or as specified in concrete mix instructions
3. Add 1⁄2 of 80 lb bag of pre-mix concrete – mixture will be very sloppy
4. Slowly add 2nd half bag of concrete
5. Add 1⁄4 gallon of water slowly to obtain desired thickness, or as specified in concrete mix instructions
MIXING SAND & GRAVEL
Needed:
Square point shovel
Portland cement
Gravel or round stone
Masonry sand
1. Start Mixer
2. Put in 1 gallon of water *
3. Add 3 shovels full of gravel or round stone
4. Add 1 shovel full of Portland cement
5. Add 2 shovels full of masonry sand – slowly
6. Add water to obtain desired thickness
* Amount of water will vary according to moisture content of sand and gravel.
CONCRETE MIXING GUIDE
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