3
* NEVER stand on the unit while it is operating.
* BE CAREFULL not to come in contact with the muffler when the engine is hot, since it can cause severe
burns.
* ENSURE that repairs to the motor and machine are carried out by COMPETENT personnel.
2. Fire & explosion hazards
* PETROL is extremely flammable and explosive under certain conditions.
* ENSURE that petrol is only stored in an approved storage container.
* DO NOT refuel the motor while it is in operation or hot.
* DO NOT refuel the motor in the vicinity of sparks, a naked flame or a person smoking.
* DO NOT over fill the fuel tank and avoid spilling petrol when refueling. Spilled petrol or petrol vapour
may ignite. If spillage occurs, ensure that the area is dry before starting the motor.
* ENSURE that the fuel tank cap is securely fitted after refueling.
3. Chemical hazard
* DO NOT operate or refuel a petrol motor in a confined area without adequate ventilation.
* CARBON MONOXIDE exhaust gases from internal combustion motor driven units can cause death in
confined spaces.
4. Noise hazards
* EXCESSIVE NOISE can lead to temporary or permanent loss of hearing.
* WEAR an approved hearing protection device to limit noise exposure. As required by Occupational
Health and Safety regulations.
5. Protective clothing
* ALWAYS wear protective clothing and footwear to prevent the skin coming into contact with wet
concrete.
* PROTECTIVE FOOTWARE should be worn to reduce injuries from penetration through the sole,
contact with cutting objects, slipping, contact with wet concrete and electrical hazards.
* GOGGLES for eye protection may also be necessary.
* USE waterproof protection for hands and knees (if kneeling) when concreting .If your clothing becomes
* Wet from concrete contact make sure you change the clothing. Do not walk about waiting for it to dry.
6. Additional hazards
Slip/Trip/Fall is a major cause of serious injury or death. Beware of uneven or slippery work surfaces.
V. Operation
Using the vibrating-beam screed
Once the concrete, with its surcharge, has been spread, start the motor and manually pull the beam
along the slab. Make sure that there is always a continuous surcharge along the entire length of the
leading edge. Generally one steady pass with the screed should be enough to compact and level the
concrete.
Vibration of the concrete is still necessary to bring air bubbles to the surface.
