I. Purpose & Scope

To safely and effectively provide instruction on the inspection and proper use of cement mixers.

II. Definitions

Standard PPE – High Viz Garment, Hard Hat, Z-87.1 Safety Glasses, Gloves, Pants, Work Boots.

III. Process

NOTE: Work instruction does not supplement the manual. For specific instructions for the exact model please refer to the owner’s manual. 

A. Potential Hazards

• Fire and/or explosion
• Rotating Parts Hazard
• Burn Hazards
• Lethal exhaust gas hazards
• Electric shock/electrocution
• Slips/Trips/Falls
• Rolling Hazard

B. PPE

• Standard PPE
• Hearing Protection
• Respiratory Protection – Recommended

C. Inspection

1. Clean the unit, removing dirt and dust, particularly the engine cooling air inlet, carburetor and air cleaner.
2. Check the air filter for dirt and dust.
3. Check carburetor for external dirt and dust.
4. Check fastening nuts and bolts for tightness.
5. Check engine oil level.
6. Remove gas cap and visually inspect fuel level.
7. Check for work or defective tires.
8. Visually examine the V-belt and determine if it is full of tiny cracks, frayed, has pieces of rubber missing, is peeling or otherwise damaged.
9. Also examine the belt and determine if it is oil soaked, glazed or worn.

D. Use

1. Pour about 5 liters of water into the mixer.
2. turn on the mixer.
3. Load a few shovels of sand into mixer.
4. Load a few shovels of cement in the mixer.
5. Wait a few minutes and add more cement.
6. Add more water as necessary.
7. Ensure concrete has the right consistency and adjust as needed.

E. Maintenance

1. Wash away cement before it dries daily.
2. Blow compressed air into the vented end of the motor to remove any excess dirt or debris.
3. Grease all fittings daily.

IV. Reference Documents

Cement Mixer Manuals