Safety Guidelines for Machine Operators

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Questions and Answers

What should be kept on hand to prepare for emergencies?

A smartphone and a computer

A first aid kit and fire extinguisher (correct)

A toolbox and safety gloves

Protective clothing and goggles

What is essential to do with a fire extinguisher to ensure it works when needed?

Keep it hidden until an emergency

Replace it every year

Use it regularly to become familiar with it

Check and service it at recommended intervals (correct)

Which of the following pieces of safety equipment is NOT recommended for use during operations?

Loose clothing (correct)

Safety glasses

Heavy gloves

Hearing protection

Why should you avoid wearing headphones while operating machinery?

They distract you from your surroundings Signup and view all the answers

What should you perform on machinery before starting it?

A daily walk-around inspection Signup and view all the answers

What type of clothing is recommended to avoid while operating equipment?

Jewelry Signup and view all the answers

What is the purpose of wearing a hearing protective device?

To protect against loud noises Signup and view all the answers

What should be done with work boots before entering a machine cab?

Clean them thoroughly to remove dirt and oil Signup and view all the answers

What is the first step to take before starting the engine of the machine?

Confirm all control levers are in neutral Signup and view all the answers

Why should the operator be seated in the operator's seat during engine start?

To maintain control of the machine when the engine starts Signup and view all the answers

What should be done with the cap on a pressurized starting fluid container during storage?

Keep it on to prevent accidental discharge Signup and view all the answers

What is a major risk of jumping starting a machine's engine?

Battery gas can explode Signup and view all the answers

What should never be done when starting the machine's engine?

Starting by shorting across starter terminals Signup and view all the answers

What is one of the main reasons for keeping riders off the machine?

They can obstruct the operator's view Signup and view all the answers

What type of clothing should be worn while operating the machine?

Close fitting clothing and safety equipment Signup and view all the answers

What is the first step before servicing the machine?

Park the machine on a level surface Signup and view all the answers

Which of the following is advised against when starting the engine after jump starting?

Using a frozen battery Signup and view all the answers

Which action should never be performed while the machine is moving?

Lubricate the machine Signup and view all the answers

Why is it important to relieve the pressure in the hydraulic system before servicing?

To prevent unexpected machine movement Signup and view all the answers

What should always be used for cleaning parts?

Non-flammable detergent oil Signup and view all the answers

How should the boom and arm be positioned for raising the machine?

At a 90 to 100° angle Signup and view all the answers

What should you do if a maintenance procedure must be performed with the engine running?

Warn others and stay alert Signup and view all the answers

What should be done with worn or broken parts?

Replace or repair them immediately Signup and view all the answers

Why is it recommended to use a maintenance work light when working under or inside the machine?

To enhance visibility and safety Signup and view all the answers

What should be done before working on the machine?

Secure the machine and lower attachments to the ground. Signup and view all the answers

What should be kept away from moving parts to prevent injury?

Hands, feet, clothing, jewelry, and hair. Signup and view all the answers

What safety precaution should be taken when releasing pressure from the air release plug?

Gradually loosen the air release plug after cooling the gear oil. Signup and view all the answers

Why is it important to store attachments securely?

To prevent them from falling and causing injury. Signup and view all the answers

What is a key consideration when inflating tires?

Maintain the correct tire pressure and use a chip-on chuck. Signup and view all the answers

What equipment is advised for safely inflating tires?

Chip-on chuck with extension hose. Signup and view all the answers

What should be inspected daily to enhance safety?

Tires and wheels. Signup and view all the answers

Why is it dangerous to work under a machine supported by a jack?

Jacks can fail without warning, leading to serious injury. Signup and view all the answers

What voltage range indicates a slow idle for the engine control dial?

0.3 to 1.0 V Signup and view all the answers

During a full stroke, what is the pressure range for the travel pressure sensor?

2.7 to 3.3 MPa Signup and view all the answers

What is the pressure measurement for the pilot shut-off lever in the LOCK position of the boom raise pressure sensor?

34 to 40 kgf/cm2 Signup and view all the answers

Which engine speed measurement method is NOT mentioned as a valid option?

Using a handheld tachometer Signup and view all the answers

What is the operational pressure range for the pilot shut-off lever when in the UNLOCK position of the pressure sensor for travel?

28 to 34 kgf/cm2 Signup and view all the answers

What is the indicated resistance for the Travel N Sensor at 20 °C?

810±240 Ω Signup and view all the answers

What outcome occurs if the engine speed is not adjusted correctly during performance testing?

All other performance data will be unreliable. Signup and view all the answers

What pressure corresponds to the control lever in the neutral position for the boom raise pressure sensor?

0 to 0.1 MPa Signup and view all the answers

Study Notes

Safety

Keep emergency numbers posted near the phone for medical and fire emergencies.
Inspect the machine daily or at the start of each shift.
Remove dirt and oil from your boots before entering the cab.
Never incinerate or puncture starting fluid containers.
Always wear the appropriate safety equipment for the task.
Start the engine only when seated in the operator's seat.
Ensure all control levers are in the neutral position before starting the engine.
Never wear radio or music headphones while operating the machine.
Wear ear muffs or earplugs to protect against loud noises.
Always follow the jump start instructions found in the operating manual.
Never use a frozen battery.
Never allow riders on the machine.
Investigate the work site before starting operations.
Ensure the work area is clean and dry when performing service.
Never spray water or steam inside the cab.
Never lubricate or service the machine while it is moving.
Keep hands, feet, and clothing away from moving parts.
If a maintenance procedure must be done with the engine running, never leave the machine unattended.
Park the machine on level ground before servicing it.
Lower the bucket to the ground before servicing it.
Turn the auto-idle switch off before servicing.
Warm up the engine for 5 minutes at slow idle speed.
Turn the key switch to OFF to stop the engine.
Relieve pressure in the hydraulic system by moving the control levers repeatedly.
Remove the key from the switch.
Attach a "Do Not Operate" tag to the control lever.
Pull the pilot control shut-off lever to the LOCK position.
Allow the engine to cool before leaving the machine unattended.
If the machine must be raised, maintain a 90-100 degree angle between the boom and arm.
Securely support raised machine elements.
Ensure all parts are in good condition and properly installed.
Always use non-flammable detergent oil for cleaning parts.
Never use fuel oil or gasoline to clean parts.
Disconnect the battery ground cable before working on electrical systems or welding.
Always use a work light with a guard when servicing the machine.
Attach a "Do Not Operate" tag to the control lever before servicing the machine.
Never attempt to work on the machine without securing it first.
Lower the attachment to the ground before working on the machine.
Support the machine securely on stable blocks or props if working on a lifted machine.
Never use cinder blocks, hollow tires, or props that could crumble under load.
Never work under a machine solely supported by a jack.
Keep hands, feet, clothing, jewelry, and hair away from rotating parts.
Keep body and face away from the AIR RELEASE PLUG to avoid injury from parts flying off.
Allow GEAR OIL to cool before releasing the pressure on the AIR RELEASE PLUG.
Secure attachments to prevent them from falling.
Keep children and bystanders away from storage areas for attachments.
Only trained professionals and qualified technicians should mount tires.
Never work on mounting tires without the proper equipment.
Always maintain the correct tire pressure.
Use a chip-on chuck and extended hose to inflate tires.
Stand to one side and not in front or over the tire assembly when inflating it.
Use a safety cage if available.
Inspect tires and wheels daily.

Engine Test

Measure the engine speed using the monitor unit or Dr.ZX.
Measure the engine speed in each mode.

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Description

This quiz focuses on essential safety practices for operating machinery. It covers emergency procedures, inspection routines, and proper use of safety equipment. Test your knowledge on safe operation protocols to ensure a secure working environment.