REOTS Flashcards

Questions and Answers

Move the transmission controller/gear selector level to ________ before starting the engine or dismounting the machine.

Neutral

A ___ _ ___ should be maintained between the nozzle and filler neck while fueling.

Good ground contact

The directional indicator, high beam, horn button, fuel gauge, articulation indicator, and monitor panel are all located on the _______ console.

Front

Do not remove the _____ filler cap unless the engine is cool.

Radiator Signup and view all the answers

During cold weather warm-up, run the engine at _ rpms for minutes.

1000, 5 Signup and view all the answers

Engine oil pressure gauge will rest in the ____ zone when at full operating temperature.

Green Signup and view all the answers

Clutch, brake, accelerator, and deceleration are all _____

Pedals Signup and view all the answers

Use the _ ____ to reduce the grader's turning circle.

Front wheel lean lever Signup and view all the answers

What can be used to further reduce the grader turning circle?

Articulation Signup and view all the answers

What is used when maximum traction is required?

Differential lock Signup and view all the answers

Ensure what is released prior to making short turns to reduce tire scuffling?

Differential lock Signup and view all the answers

What is a completely assembled moldboard commonly called?

Blade Signup and view all the answers

When set at an angle, the leading end of the moldboard is referred to as what?

Toe Signup and view all the answers

When set at an angle, the trailing end of the moldboard is referred to as what?

Heel Signup and view all the answers

Where should the moldboard be when spreading or compacting material?

Tilted forward Signup and view all the answers

What is controlled by leaning the front wheels in the direction of material moving across the moldboard?

Side thrust Signup and view all the answers

When should the ripper be lowered into the ground?

While moving Signup and view all the answers

What is the first pass known as when cutting a vee ditch?

Marking pass Signup and view all the answers

Where is it best to start and stop when finishing the grade of a slope?

Top, Bottom Signup and view all the answers

Other than abrasions, what should you check tires for?

Cuts, uneven or excessive tread wear Signup and view all the answers

When should you only operate the machine?

When sitting in the seat Signup and view all the answers

Avoid operating the machine across?

Slope Signup and view all the answers

How do you disable the entire electrical system?

Battery disconnect switch Signup and view all the answers

Where does the gauge needle need to be for the coolant temperature to be excessive?

Red zone Signup and view all the answers

What does a category 2 warning require?

Change in machine operation Signup and view all the answers

After the engine oil or hydraulic pressure indicator light flashes and the alarm sounds, you should do what and investigate?

Stop the machine immediately Signup and view all the answers

Which brake pedal controls down-shifting the transmission?

Left Signup and view all the answers

What needs to be done to the switch on the direction selector level in order to determine the transmission speed?

Rotate Signup and view all the answers

What position is the lift control in when it is in the forward detent position?

Float Signup and view all the answers

While opening or closing the hood, when audible clicks are heard what must be done?

Release the toggle switch Signup and view all the answers

What are hold, float, lower, and raise functions of?

Lift control Signup and view all the answers

What must always be put in the lock position before transporting, lifting, or servicing the loader?

Steering frame lock Signup and view all the answers

Which direction should you travel down an incline with a loaded bucket, in order to prevent material from falling out of the bucket?

Reverse Signup and view all the answers

When loading from a bank, what else must be done other than removing overhang?

Watch for sliding material Signup and view all the answers

Carrying a loaded bucket low allows for the operator to have good _ and the loaded to have good ?

Visibility, Stability Signup and view all the answers

How many inches should the bucket approximately be carried above the surface?

15 Signup and view all the answers

What is the action called when the bucket tilt lever is operated back and forth, to load a heaped load?

Pumping Signup and view all the answers

The recommended technique for loading a hauling unit is at an?

Angle Signup and view all the answers

Where should the engine oil on a dipstick be maintained at?

Safe starting range Signup and view all the answers

Which one purpose was the excavator designed for in order to support civil engineering?

ADR mission Signup and view all the answers

What is the first step in ensuring the machine is ready for operation?

Walk around inspection Signup and view all the answers

Where are the only locations on the machine where you can mount and dismount?

Steps/Handholds Signup and view all the answers

What did you use to park the excavator and what position should this item be left at?

Stick/Vertical Signup and view all the answers

You should crank the engine for no more than how many seconds on starting the excavator?

30 seconds Signup and view all the answers

Other than mounting hardware, what should you always check the conditions of before operating the excavator?

Seat belts Signup and view all the answers

What two ways can travel in the excavator be accomplished by?

Travel pedals and/or travel levers Signup and view all the answers

In order to travel forward in the excavator, what part of both pedals should go where?

Front & Forward Signup and view all the answers

In order to travel in reverse in the excavator, what part of both pedals should go where?

Rear & Reverse Signup and view all the answers

Pushing down on the front left pedal allows you to do what in the excavator?

Turn right Signup and view all the answers

Pushing down on the front right pedal in the excavator allows you to do what?

Turn left Signup and view all the answers

What happens with the excavator when you push down on the front of one pedal and the rear of another?

Spot turn Signup and view all the answers

What activates the controls in an excavator?

Hydraulic activation control Signup and view all the answers

Though movement of the upper structure will stop, what happens when a control lever is released?

Return to hold Signup and view all the answers

What two reasons will you reduce the engine speed on maneuvering the machine?

Tight quarters/incline Signup and view all the answers

What three operations should not be used in swing force?

Show compassion, groundbreaking, demolition Signup and view all the answers

What should the cable or chain be fastened to when lifting a load with the excavator?

Lifting bar Signup and view all the answers

What must happen in order to dump a load?

Stick outward and bucket in smooth position Signup and view all the answers

Study Notes

Operation Basics

Move the transmission controller/gear selector to Neutral before starting the engine or dismounting the machine.
Maintain Good ground contact between the nozzle and filler neck while fueling to prevent spills.

Console and Controls

Directional indicator, high beam, horn button, fuel gauge, articulation indicator, and monitor panel are located on the Front console.
The radiator filler cap should not be removed unless the engine is cool.

Engine Operation

During cold weather warm-up, run the engine at 1000 rpms for 5 minutes.
The engine oil pressure gauge should rest in the Green zone when at full operating temperature.

Machine Controls

Clutch, brake, accelerator, and deceleration pedals are crucial for control.
The Front wheel lean lever helps reduce the grader's turning circle, and articulation can further assist.

Traction and Safety

Differential lock is utilized for maximum traction and should be released prior to making short turns to reduce tire scuffling.
The moldboard is commonly referred to as the Blade when completely assembled.

Moldboard Mechanics

The leading end of the moldboard at an angle is known as the Toe, while the trailing end is known as the Heel.
When spreading or compacting material, the moldboard should be tilted forward.

Grading Techniques

Side thrust is controlled by leaning the front wheels in the direction of material moving across the moldboard.
The ripper should be lowered into the ground while moving for effective cutting.

Grading Procedure

The first pass when cutting a vee ditch is known as the Marking pass.
Finish grading a slope by starting at the Top and stopping at the Bottom.

Tire and Operator Safety

Check tires for cuts, uneven or excessive tread wear in addition to abrasions.
Always operate the machine while directly seated; avoid operating across Slope.

Electrical and Temperature Monitoring

Disable the entire electrical system via the Battery disconnect switch.
The gauge needle indicates excessive coolant temperature when positioned in the Red zone.

Operating Alerts

Category 2 warning requires a change in machine operation; stop the machine immediately upon engine oil or hydraulic pressure indicator alert.

Controls and Indicators

The left brake pedal is responsible for down-shifting the transmission.
To determine transmission speed, rotate the switch on the direction selector lever.

Lift Control Mechanics

Lift control is in Float when at the forward detent position.
Release the toggle switch when audible clicks are heard while opening or closing the hood.

Safety and Transport

Prior to transportation, lifting, or servicing, always secure the machine in the Lock position with the steering frame lock.
Descend an incline with a loaded bucket in Reverse to prevent material spillage.

Operating Techniques

When loading, ensure to remove overhang and watch for sliding material.
When carrying a loaded bucket low, this enhances visibility for the operator and stability for the load.

Engine Oil Maintenance

Maintain engine oil on the dipstick within the Safe starting range.

Excavator Operations

The excavator's ADR mission supports civil engineering.
Start machine readiness with a walk around inspection and only mount from designated Steps/Handholds.

Starting and Traveling

Limit cranking the engine to no more than 30 seconds when starting.
Check seat belts in addition to mounting hardware before operation.

Travel Mechanisms

Travel in the excavator is accomplished through either travel pedals or travel levers.
To move forward, press the front part of both pedals; for reverse, push the rear parts.

Turning and Hydraulic Systems

Pushing down on specific pedals allows for Turning: left or right.
Spot turning occurs when a pedal's front is pushed down with the rear of another.

Control Mechanism

Hydraulic activation control is essential for excavator operations.
Release of a control lever will result in a Return to hold position.

Maneuvering and Safety

Reduce engine speed during tight maneuvering or on inclines.
Avoid using swing force on operations like groundbreaking and demolition.

Lifting Protocol

Fasten cables or chains to a Lifting bar when lifting loads.
To dump a load, ensure the stick is outward and the bucket is positioned smoothly.

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Description

Test your knowledge with these REOTS flashcards! Each card presents a key term and its definition related to safe machine operation and maintenance. Perfect for those preparing for practical assessments or enhancing their understanding of equipment handling.