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OPERATION
45CM & 55CM
the engine at full throttle when under load. Adjust
engine speed so drum is turning between 20 - 25 RPM.
NOTE:
These starting instructions are general
guidelines only. Since many engine options are
available on the manufacturer's CM mixers, consult the
ENGINE MANUAL included with this unit for specific
instructions.
ELECTRIC MOTORS -
Use the proper size (3) wire
(grounded) extension cord, conforming to the National
Electric Code and Local Ordinances. DO NOT use (2)
wire extension cord. Check any extension cord
carefully for broken connectors, bare wires and
damaged insulation. DO NOT use any cord found to be
in poor condition. Make sure the extension cord is not
routed through standing water and that all the
connections are tight. Use the shortest extension cord
possible. Turn motor on.
TO STOP THE ENGINE / MOTOR
GASOLINE ENGINES -
Depress grounding switch
located on the left cowl side and hold down until
engine stops completely. Consult the ENGINE
MANUAL included with this unit for specific
instructions. If the mixer is to be left unattended for
any length of time, close the fuel valve under the gas
tank.
ELECTRIC MOTORS
- Turn the motor off. If the
mixer is to be left unattended for any length of time,
disconnect the power cord.
OPERATION
Start the engine / motor as previously instructed and
allow gasoline engines to reach operating temperatures.
Close the engine cowl. NEVER operate the mixer with
cowl open.
With drum operating between 20 - 25 RPM's the mixer
is now ready for the addition of the concrete mix. For
best results proceed as follows:
1. Pour the required amount of water into
drum.
2. Add the required amount of gravel.
3. Add the required amount of cement.
4. Add the required amount of sand. By
adding the water and gravel first the
drum will be kept clean and a good
tumbling action will be maintained when
cement and sand will be added.
To discharge concrete, grab the drum handle firmly and
push it towards the drum to disengage. Dump drum in
desired direction. After discharge of concrete return
the drum to the desired position. To prevent accidental
discharge, make sure the dump handle lock pin is
firmly seated into tilt disc mounted on the frame.
Immediately pour in the required amount of water for
the next batch, this will clean the drum and paddles
between batches.
GENERAL MIXING INSTRUCTIONS
The total volume is 6.2 / 6.7 cubic ft. The maximum
batch size is 4 / 5 cubic ft. depending on the type of
mix being used. A smaller batch size may be required
to give a uniformly mixed batch.
SAMPLE MIX
Volume relationship of 1:2 - 1/2:3
(cement : sand : gravel) mix. The mix volume may
vary depending on aggregate used.
Mix Volume
Cu. Ft.
2
3
4
5
Cement
(bags)
1/3
1/2
2/3
7/8
Water (gal.)
1-3/4
2-1/2
3-1/2 4-3/4
Sand (gal./
shovels)
6
9
12
15
Gravel (gal./
shovels)
8
12
16
20