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Common workplace hazards

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Presentation on theme: "Common workplace hazards"— Presentation transcript:

1 Common workplace hazards
1. Prepare for hazards Shown here are some common workplace hazards. Weather Powerlines Vehicles/other mobile plant Hazardous Materials Underground services Open trenches/ excavations Tripping hazards Pedestrians start

2 Too dark 1. Prepare for hazards Hazard: If the work area is dark or dimly lit you might not be able to see clearly. Control: Use extra lighting such as portable lamps, or try to find a brighter area if you can. RIGHT WRONG start

3 Hoisting down Luffing boom up
Hand signals Hoisting down Motion Hand signal Whistle 2. Communicate clearly 1 long Commonly used signal (Not Australian Standard) Luffing boom up Motion Hand signal Whistle 3 short start

4 Stop Hand signals 1 short Emergencies
Motion Hand signal Whistle 2. Communicate clearly 1 short Emergencies It is important to communicate in an emergency. Make sure you: • Tell other people there is an emergency • Tell people what the emergency is • Tell people when to exit unsafe areas. start

5 General start-up procedures
Start the crane Look in the user’s manual or manufacturer’s instructions to find out the right way to start the crane. Strange noises Listen for unusual or strange noises and vibration or shaking in the non-slewing mobile crane when you start it. Strange noises could mean the crane has a fault and you should have the crane inspected to find the cause of the fault. General start-up procedures 3. Check the crane 1. Apply the parking brake to stop the vehicle from moving. 2. Make sure the manual accelerator control lever is in the catcher and crane control levers are in the neutral positions. 3. Put the vehicle’s shift lever in the neutral position. 4. Start the engine. 5. Depress the clutch pedal, pull up the power take-up (PTO) lever completely, and release the clutch pedal slowly. This will start the hydraulic pump. 6. CAUTION – in winter and cold climates do not operate the crane immediately after doing steps 1 – 5. First, operate the hydraulic pump alone to warm up the hydraulic oil. start

6 Do the pre-operational checks
Once you start your non-slewing mobile crane you need to make further checks. Post-start checks include: Horn/lights/drive indicator Warning devices/systems Gauges Warning devices/systems 3. Check the crane Hazard controls Brakes Hazard controls All controls and motions to full capability/extension (to make sure the crane is safe to use). Check the hoist limit switch/cut-out to avoid double-blocking. Double-blocking occurs when the hook/block assembly is dragged into the head sheaves. This can cause a serious incident. WRONG start

7 Check ground conditions
Check that the ground can support the crane and the load before you set up. Ground conditions can affect the need for outriggers and packing. 4. Plan the lift Talk to an expert Wet ground You may have to talk to an expert to assess the ground for you. An engineer’s report can tell you if the ground is safe to work on and suitable for supporting the crane. If it rains the ground may be soft and unstable for heavy vehicles and machinery. If you think the ground is too soft or wet ask a competent person to test the ground before you set up the crane. start

8 Move the load safely You are mobiling (moving) a load. Before you move the load, think about: How the crane will get in and out of the work area Hazards and obstructions in your path and work area 6. Do the lift When you are mobiling the crane (driving with a load attached), remember to: • Move as slowly as possible – at creep speed • Accelerate (speed up) and brake slowly to stop load swing • Keep the boom/jib length short to keep the crane well-balanced • Keep the load close to the ground to keep the crane well-balanced. The weight and size of loads Boom angle/length Boom/jib deflection start

9 Shut down and pack up This part of the book is about how to shut down, pack up and put away equipment. It covers stowing and securing equipment, using motion locks, shutting down the crane and post-operational checks. 7. Shut down and pack up start

10 Stow and secure outriggers/stabilisers
Most non-slewing cranes don’t use outriggers and packing. Sometimes when using a telehandler you will use outriggers. When you have finished with the crane, stow and secure the outriggers and packing safely for travel. To stow and secure outriggers and packing you should: 1. Retract the outriggers using the controls in the cabin. 7. Shut down and pack up 2. Pick up and clean packing. 3. Stow and tie down the packing in its place on the crane. start

11 Part 3 – Check the crane Question 18. What kinds of problems should you look for on the crane itself? click for answer Answer may include: Broken windscreen Oil and fluid leaks Damaged or flat tyres Quiz

12 Question 25. Which crane safety devices need to be tested and working?
Part 3 – Check the crane Question 25. Which crane safety devices need to be tested and working? click for answer Answer may include: Horns/sirens Warning lights Quiz Hoist limit/maximum radius Minimum radius luff limit

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