Marshalltown 900CM Mixer - Manual (Page 7)

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Drum Tilt Brake Bearing:
The brake bearing casting is located near the front of the mixer and should be greased
weekly.
Handwheel Bearing:
The handwheel hub bearing is located on the front of the mixer, behind the handwheel.
This bearing should be greased weekly.
WARNING: DO NOT GREASE BRAKE BAND OR OUTER
BRAKING SURFACE OF TILT GEAR.
Jack Shaft Bearings:
Pillow block style bearings are used on the drive train counter shaft. These bearings
should be greased weekly.
Drive Chain:
The drive chain should be lubricated monthly with SAE #20 or SAE #30 oil. Apply the
oil between the side plates.
Engine/Motor:
Refer to the manufacturer’s engine or motor operating instructions for all maintenance
and lubrication requirements and instructions.
LUBRICATION FREQUENCY CHART:
# ITEM FREQUENCY FIGURE CODE PLACES
1 Yoke Bearing Casting weekly 3 grease 2
2 Handwheel Hub weekly 4 grease 1
3 Drum Tilt Brake Bearing Casting weekly 4 grease 1
4 Drive Shaft & Jackshaft weekly 4 grease 1
5 Drum Shaft Tube yearly 3 grease 1
6 Wheel Bearings yearly 1 grease 2
7 Drive Chain monthly 4 oil 1
MIXING INSTRUCTIONS:
1. Start the drum rotating.
2. Add water.
3. Add cement and one shovelful of coarse aggregate. The coarse aggregate will
break up any lumps in the cement.
4. Add remaining aggregate: crushed stone, pit-run gravel or sand.
5. Mix batch for approximately one minute. Drum speed should be about 25 r.p.m.
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.