Basic Loader Safety Training :My Safety Training Online. Com Basic Loader Safety Training Hands On Training
Heavy Equipment Safety :Heavy Equipment Safety Front-end loaders, excavators, and ditchers are used to support construction operations anytime there is a need to lift, load, unload, clear, grub, excavate, or trench.
Each operator is responsible for reading the operator’s manual to obtain detailed information about each make and model. This training program covers the general characteristics and basic principles of operations of front-end loaders, excavators, and ditchers.
Loader Equipment Safety :Loader Equipment Safety FRONT-END LOADERS
The front-end loader is a self-contained unit mounted on rubber tires or tracks and is one of the most versatile and capable pieces of equipment used in the NCF.
The front-end loader can be equipped to operate as a loader, a dozer, a scraper, a clamshell, a forklift, a backhoe, a crane, an auger, or a sweeper.
Loader Equipment Safety :Loader Equipment Safety RUBBER-TIRED FRONT-END LOADER
Mounted on large rubber tires, the front-end loader has a relatively low ground bearing pressure (approximately 45 pounds) that enables it to perform a large variety of jobs.
The rubber-tired front-end loader (fig. 9-1) has three manually selected forward gear ranges that permits good mobility when traveling from one jobsite to another. The full power soft shift transmission allows the gear range and direction of travel changed at anytime without stopping the machine from maintaining a high rate of production.
The large rubber tires provide good traction on unstable surfaces and allow the front-end loader to perform on side slopes of 15 percent and on front slopes up to 30 percent. The hydraulic system gives the operator positive control of the front-end loader attachments and steering system.
Loader Equipment Safety :Loader Equipment Safety Mounted on crawler tracks, the crawler-mounted front-end loader has a low ground bearing pressure that enables it to operate in areas where wheeled front-end loaders cannot go.
The crawler-mounted front-end loader (fig. 9-2) has a lower speed than a rubber-tired front-end loader, and this decreases its mobility; however, the crawler-mounted front-end loader can be operated on side slopes of up to 35 percent and on front slopes of up to 60 percent.
The hydraulic system provides positive control of the front-end loader, and the crawler tracks are normally semi-grouser shoes (fig. 9-3) that permit it to work on firm ground with little damage to the surface.
Loader Equipment Safety :Loader Equipment Safety
Loader Equipment Safety :Loader Equipment Safety
Loader Equipment Safety :Loader Equipment Safety Buckets
Two types of front-end loader buckets are commonly used: a general-purpose bucket (fig. 9-6) anda multi-segment (4-in-1) bucket, also known as a multipurpose (4-in-1) bucket (fig. 9-7). Both types maybe equipped on crawler or rubber-tired wheeled loaders.
The “general-purpose bucket” is a single-piece bucket constructed of heavy-duty, all-welded steel with bolted or welded replaceable cutting edges. Also attached are bolt-on replaceable teeth (fig. 9-8) thatallows the bucket to be used for excavation of medium-to-hard materials.
The “multipurpose (4-in-1) bucket” is also constructed of heavy-duty, all-welded steel with bolted or welded replaceable cutting edges. This bucket also has bolt-on replaceable teeth attached that provide for excavation of medium-to-hard materials. However, the multipurpose (4-in-1) bucket has a two-piece construction that makes it more versatile than the
Loader Equipment Safety :Loader Equipment Safety The “multipurpose (4-in-1) bucket” is also constructed of heavy-duty, all-welded steel with bolted or welded replaceable cutting edges. This bucket also has bolt-on replaceable teeth attached that provide for excavation of medium-to-hard materials. However, the multipurpose (4-in-1) bucket has a two-piece construction that makes it more versatile than the
Loader Equipment Safety :Loader Equipment Safety When operating a loader equipped with a skid bucket, keep the engine speed at full throttle and operate in the first or second gear transmission range. Use second and third gear for traveling.
Start all jobs from nearly level ground if possible. When necessary, level an area large enough to provide sufficient working space for the loader. This step prevents up-and-down pitching of the loader (fig. 9-9)and results in a smoother digging operation
Loader Equipment Safety :Loader Equipment Safety When operating a loader equipped with a skid bucket, keep the engine speed at full throttle and operate in the first or second gear transmission range. Use second and third gear for traveling.
Start all jobs from nearly level ground if possible. When necessary, level an area large enough to provide sufficient working space for the loader. This step prevents up-and-down pitching of the loader (fig. 9-9)and results in a smoother digging operation.
Loader Equipment Safety :Loader Equipment Safety Track and wheel spinning should be avoided, because loader tires are expensive and excessive spinning of the tires while loading causes premature wear and tear. Additionally, it converts a smooth working area into ruts that pitch and tilt the loader. A smooth working area is safer and more comfortable. It also puts less wear and tear on the machine and yourself; therefore, production is increased.
Cross ditches, ridges, rocks, or logs slowly and, if possible, at an angle. This procedure slows the fall, lessens the danger of upsetting the loader, and reduces the jolt of the fall that can harm both the operator and the loader.
Loader Equipment Safety :Loader Equipment Safety A uniform system of hand signals must be used in all front-end loader operations. While the authority for giving signals must be assigned to only one person under normal working conditions, the responsibility for giving an emergency stop signal belongs to anyone in the vicinity who believes such a signal is necessary. The person giving the signals must be clearly visible to the operator at all times. Hand signals used in front-end loader operations are shown in appendix IV.
NOTE: You must recognize and understand these signals when operating equipment. Additionally, you must also be able to give them when called on to act as a signalman during any equipment operation.
Loader Equipment Safety :Loader Equipment Safety Most 515 B series dresser rubber-tired front-end loaders used in the NCF have an automatic bucket leveler located on the underside of the bucket cylinder (fig. 9-10).
The automatic bucket leveler is preset to stop the bucket in a horizontal or digging position. A trip bar (1) is attached to and moves with the cylinder rod.
The proximity switch (2) creates a magnetic field circuit that is completed by the proximity of the trip bar within the magnetic field. Once the bucket is dumped, place the bucket lever in the bucket “rollback” position. When the bucket reaches its preset position, the trip bar moves out of the magnetic field circuit created by the proximity switch and automatically stops.
Then the bucket control lever returns to the “hold” position.
NOTE: Refer to the manufacturer operator’s manual when the automatic bucket leveler needs adjustment.
Loader Equipment Safety :Loader Equipment Safety Position Indicator
The general-purpose bucket shown in figure 9-6 is normally used as a skid shovel. The multipurpose bucket shown in figure 9-7 serves as a skid shovel, but can also be used as a bulldozer, scraper, and clamshell.
Most front-end loaders are equipped with six bucket control lever positions, such as raise, hold, lower, float dump, and rollback. Dump and rollback can be used at the same time with any other four positions. Also, most loaders have a position indicator and depth gauge indicator mounted on the bucket.
Loader Equipment Safety :Loader Equipment Safety To set the multipurpose attachment as a bucket, the operator pulls the control lever back (fig. 9-11) until the clamshell indicator is at the “O” setting on the clam product graphic (fig. 9-12).
To set the multipurpose bucket as a scraper, you open the clamshell until the indicator points to 2 or 4 on the clam product graphic (fig. 9-13). The more the clamshell is open, the deeper a cut can be made.
To use the multipurpose bucket as a dozer, you open the clamshell until the clamshell indicator is at the bottom of the clam product graphic (fig. 9-14).
When using the multipurpose blade as a dozer, you can adjust the amount of cut by the pitch of the dozer
Loader Equipment Safety :Loader Equipment Safety When using the multipurpose blade as a dozer, you can adjust the amount of cut by the pitch of the dozer blade. This is done by tilting the blade forward or backward, as shown in figure 9-15.
To use the multipurpose bucket as a clamshell, you open the clamshell until the clamshell indicator is at the bottom (fig. 9-16). Then you tilt the bucket forward all the way.
NOTE: Multipurpose bucket position indicators differ, depending on the manufacturer. Read the operator’s manual for the type loader you are assigned to operate.
Loader Equipment Safety :Loader Equipment Safety To use the multipurpose bucket as a clamshell, you open the clamshell until the clamshell indicator is at the bottom (fig. 9-16). Then you tilt the bucket forward all the way.
NOTE: Multipurpose bucket position indicators differ, depending on the manufacturer. Read the operator’s manual for the type loader you are assigned to operate.
Loader Equipment Safety :Loader Equipment Safety Loader Operation
A front-end loader can dig excavations, such as building foundations and other belowground areas, if the material to be excavated is not too hard. Belowground operations require construction of a ramp into the excavation to bring the material out (fig. 9-17).The slope of the ramp depends on the type of loader operated; for example, a crawler-mounted loader may dig a more abrupt approach to the excavation.
When loading from a bank or stockpile, use the “V” method shown in figure 9-18 or the step-loading method shown in figure 9-19. Position the dump truck at about a 30-degree to a 45-degree angle from the stockpile.
Additionally, when possible, load the dump truck downwind to prevent dirt and dust from blowing back into your face. Keep the truck close to the work area to minimize loader travel, and keep the work area clean and level.
Loader Equipment Safety :Loader Equipment Safety The bucket is loaded by moving the loader forward with the bucket at the desired digging level and with the engine at full-governed speed. As the bucket penetrates the material, raise the bucket slightly. When the material fills to the top of the spill board, roll the bucket all the way back (fig. 9-20). The rollback position is main-tained to prevent spillage while backing away.
When transporting material, raise the lift arm to give the bucket the same ground clearance as provided by the loader axle. Keep the travel speed reasonable for safe operation. Upon reaching the truck, raise the bucket high enough to clear the truck body.
Loader Equipment Safety :Loader Equipment Safety
Loader Equipment Safety :Loader Equipment Safety Reduce forward speed and dump the load in the center of the dump bed, as shown in figure 9-21. Shake the bucket to loosen dirt from within. After the load is dumped, back away, lower the bucket to the carrying position, and return to the digging area
Loader Equipment Safety :Loader Equipment Safety A loaded bucket must never be transported in the fully raised position.
NOTE: Dump trucks should be loaded from the driver’s side whenever possible. When the truck is being loaded, be sure the driver either stays in the cab (on cab-protected trucks) or away from the truck and loader.
When loading from a bank, keep the cutting edge flat, as shown in figure 9-22. Tilting the bucket back too far forces the flat of the cutting edge against the bank, preventing the bucket from digging. This maneuver is nonproductive and causes waste of power, time, and possible damage to the bucket cylinders and linkage.
When stockpiling material, move each load only once and keep the travel distance short.
Loader Equipment Safety :Loader Equipment Safety When possible, locate stockpiles as close to the jobsite as possible without hindering other work on the jobsite.
When clearing a rocky area, remove the small and loose rocks first. Large rocks and other solid objects can then be loosened and moved easier.
Loader Equipment Safety :Loader Equipment Safety
Loader Equipment Safety :Loader Equipment Safety Figure 9-25.-Bucket positioned for back dragging non-solid materials.
When loosening large rocks or other solid objects, you can get greater force and penetration by digging under the rock with the bucket, as shown in figure 9-23.Lifting the rock with the bucket while pushing increases traction and reduces track or wheel spinning.
When loading large rocks into dump trucks, place a load of dirt or sand into the dump bed. This material acts as a cushioning material and helps protect the dump bed from damage. Then load the large rocks into the center of the dump bed from the lowest possible height (fig. 9-24).
Loader Equipment Safety :Loader Equipment Safety NOTE: When you have extended tasking to haul large rocks or riprap, you should have the dump beds lined with wooden planking. This will save time loading sand or dirt and also protect the bed.
When finishing by back dragging in nonsolid materials, position the bucket, as shown in figure 9-25,views A or B.
NOTE: Back dragging abrasive materials causes premature wear to the bucket.
By placing the bucket in the scraper position and opening the clamshell slightly, you can spread material on the run. The amount of spread can be controlled by the size of the opening of the clamshell, as shown in figure 9-26.
When transporting trees or other large objects, always balance the load, as shown in figure 9-27.
Loader Equipment Safety :Loader Equipment Safety
Loader Equipment Safety :Loader Equipment Safety Removing buried objects using the clamshell by rolling back the bucket.
Loader Equipment Safety :Loader Equipment Safety Balance the load when picking it up to prevent twisting the boom assembly and linkage. When dumping awkward loads, dump slowly to reduce the shock of weight transfer to the rear axle when the bucket is emptied.
Loader Equipment Safety :Loader Equipment Safety Equipment Operators have created techniques to perform a variety of construction operations using loaders equipped with the multipurpose (4-in-1) bucket. However, these techniques can cause UNNECESSARY DAMAGE to multipurpose (4-in-1) buckets by subjecting them to conditions they were not designed for. Some of the ways a multipurpose bucket should NOT be used are as follows:
Do NOT use the rollback as a force to pull stumps or buried objects from the ground, because this may bend the clamshell (fig. 9-28).
Do NOT attempt to break off buried or anchored objects with the clamshell by back dragging, because this may bend the clamshell (fig. 9-29).
Loader Equipment Safety :Loader Equipment Safety Do NOT attempt to break off buried or anchored objects by side loading the clamshell, especially when opened, because this may bend sides of the clamshell (fig. 9-30).
Loader Equipment Safety :Loader Equipment Safety
Loader Equipment Safety :Loader Equipment Safety The backhoe attachment shown in figure 9-37 is used to dig hard material because of the positive pressure created by the hydraulic system.
Its digging depth is limited by the length of the boom and dipper stick. The backhoe dumps the material into trucks to be hauled away or into piles alongside the excavation to be used as backfill material.
Its dumping range is also limited to the length of the boom and dipper stick.
Loader Equipment Safety :Loader Equipment Safety 515 Dresser Backhoe
The 515 dresser backhoe attachment couples easily to the front of the loader frame, using hydraulic controlled pins and quick- disconnect hydraulic fittings. The procedure for setting up the backhoe attached to the 515 dresser is as follows:
Figure 9-36.-Attempting to pickup objects too large for the clamshell.
Loader Equipment Safety :Loader Equipment Safety
Loader Equipment Safety :Loader Equipment Safety . After the backhoe has been coupled to the front of the front-end loader, raise the boom arm until the boom arm pivot point is approximately 20 inches from the ground
3. For backhoe operations, place the two levers the ground, as shown in figure 9-38.fiut.best from the operator in the hold position. Place the lever closest to the operator in the forward position.
2. Using the bucket control lever, tilt the backhoe Move the locking plate in the position shown in main frame until the top of the main frame is parallel figure 9-39, locking the lever in the forward position with the ground. and the two other levers in the hold position.
Loader Equipment Safety :Loader Equipment Safety
Loader Equipment Safety :Loader Equipment Safety 2. Using the bucket control lever, tilt the backhoe Move the locking plate in the position shown in main frame until the top of the main frame is parallel figure 9-39, locking the lever in the forward position with the ground. and the two other levers in the hold position.
Loader Equipment Safety :Loader Equipment Safety 4. The loader is equipped with a remote hand throttle assembly (fig. 9-40) located on the front cover of the loader, which is behind the backhoe operator’s seat.
The hand throttle is preset to the backhoe specifications to deliver the proper amount of hydraulic oil flow for backhoe operations. The speed of the engine determines the volume of hydraulic oil delivered to the backhoe and the speed of the cylinder movements.
Because of this, you should set the engine at a low speed until you are familiar with the control lever pattern.
Loader Equipment Safety :Loader Equipment Safety NOTE: The backhoe is designed to operate efficiently at a preset gallons per minute flow of hydraulic fluid. Setting the engine throttle in excess of that set for backhoe operations creates excessive hydraulic temperatures and pressures that can damage hydraulic and structural components.
5. Lower the backhoe stabilizer legs to fix the backhoe in position.
6. Warm up the backhoe hydraulic system by extending and retracting each hydraulic cylinder piston rod several times to circulate warm oil through the hydraulic system. When the backhoe hoses feel warm when touched, the backhoe is ready for operation.
Loader Equipment Safety :Loader Equipment Safety WARNING
Before performing maintenance on the backhoe, you must extend the dipper stick fully and set the bucket and stabilizer on the ground.
Shut down the engine, and actuate all of the control levers back and forth to relieve the hydraulic pressure in the system.
Loader Equipment Safety :Loader Equipment Safety Loader Backhoe
The loader backhoe tractor (fig. 9-41) is equipped with a 1.3-cubic-yard bucket mounted on the front and the backhoe mounted on the rear.
The loader is equipped with a four-speed transaxle that permits the gears to be shifted from first or second to third or fourth and back again to third without stopping.
When shifting gears, always make sure the engine speed remains in the green area of the tachometer.
It releases automatically when the load is removed.
Loader Equipment Safety :Loader Equipment Safety The loader also has a differential lock that gives equal power to both rear wheels when the machine is stuck or before the loader is operated through a soft or muddy area. When the loader is stuck, the differential lock is actuated as follows:
1. Make sure the rear wheels are not turning.
2. Push down the clutch cutout pedal (fig. 9-42).
3. Push down the differential lock pedal.
4. Release the clutch cutout pedal.
5. Increase the engine speed and release the differential lock pedal.
NOTE: The differential lock releases automatically when the load is removed.
Loader Equipment Safety :Loader Equipment Safety Before operating through a soft or muddy area, you can actuate the differential lock as follows:
1. Before moving the loader through an area that is soft or muddy, make sure that the loader is moving in a straight direction and that one of the rear wheels is not rotating faster than the other rear wheel.
2. Push down the differential lock pedal while the loader is moving through the soft or muddy area.
3. After the loader has moved through the area, release the differential lock pedal
Loader Equipment Safety :Loader Equipment Safety NOTE: Engaging the differential lock when the loader is turning or if one rear wheel is rotating faster than the other wheel can cause damage to the transaxle.
When servicing the engine with the loader lift arms raised, always use the support strut (fig. 9-43).
The procedure for attaching the support strut is as follows:
1. Empty the loader bucket and raise the loader lift arms to the maximum height and stop the engine.
2. Remove the rear pin from the support strut and lower the strut onto the cylinder rod.
Loader Equipment Safety :Loader Equipment Safety
Loader Equipment Safety :Loader Equipment Safety
Loader Equipment Safety :Loader Equipment Safety 3. Install the rear pin in the support strut.
4. Slowly lower the lift arms onto the support strut
Loader Equipment safety :Loader Equipment safety
Loader Equipment Safety :Loader Equipment Safety WARNING
Failure to use the support strut when servicing the engine can result in serious injury or death if the loader arms are lowered by accident.
Backhoe operation is as follows:
1. Removed the swing lock pin (fig. 9-44).
2. Climb into the loader using handrails and steps (fig. 9-45).
3. Rotate the loader bucket into the dump position and lower it to the ground. Lower the bucket until the front wheels are a few inches above the ground (fig. 9-46).
4. Rotate the operator’s seat to the rear of the loader for backhoe operation and increase the engine speed to full throttle (fig. 9-47).
5. Lower the stabilizers and raise and level the loader (fig. 9-48).
6. To release the boom latch, push the boom latch control lever to the left and hold it until the boom is released (fig. 9-49).
7. Extend the boom and bucket to start digging operations, as shown in figure 9-50.
8. To dig with the backhoe, move the dipper stick in ward and fill the bucket (fig. 9-51, view A). Once the bucket is filled, curl the bucket inward (fig. 9-51, view B). Swing the boom and dump the material from the bucket (fig. 9-51, view C). Return to the trench and lower the bucket (fig. 9-51, view D).
Loader Equipment Safety :Loader Equipment Safety
Loader Equipment Safety :Loader Equipment Safety
Loader Equipment Safety :Loader Equipment Safety The backhoe bucket can be adjusted for two digging positions. The position for loading dump trucks is shown in figure 9-52, view A. The position for digging deep, vertical holes is shown in figure 9-52,view B.
The backhoe can dig more material in less time when a smooth, short dig cycle is used. When the bucket is forced to excavate a load that is too large (when the dipper stick control lever is pulled back and the bucket is not moving), a “hydraulic stall” results in the loader hydraulic system. When this occurs, the main relief valve of the hydraulic system makes a noise, alerting the operator to release the control lever.
NOTE: Hydraulic stalls cause the temperature of the hydraulic fluid to increase that can cause premature wear to the hydraulic system.
Loader Equipment Safety :Loader Equipment Safety SUMMARY
Each operator is responsible for reading the operator’s manual to obtain detailed information about each make and model.
Mounted on large rubber tires, the front-end loader has a relatively low ground bearing pressure (approximately 45 pounds) that enables it to perform a large variety of jobs.
Two types of front-end loader buckets are commonly used: a general-purpose bucket (fig. 9-6) and a multi-segment (4-in-1) bucket, also known as a multipurpose (4-in-1) bucket (fig. 9-7). Both types maybe equipped on crawler or rubber-tired wheeled loaders.
Loader Equipment Summary :Loader Equipment Summary IV. A loaded bucket must never be transported in the fully raised position.
NOTE: Dump trucks should be loaded from the driver’s side whenever possible. When the truck is being loaded, be sure the driver either stays in the cab (on cab-protected trucks) or away from the truck and loader.
V. Most front-end loaders are equipped with six bucket control lever positions, such as raise, hold, lower, float dump, and rollback. Dump and rollback can be used at the same time with any other four positions.
VI. The hand throttle is preset to the backhoe specifications to deliver the proper amount of hydraulic oil flow for backhoe operations. The speed of the engine determines the volume of hydraulic oil delivered to the backhoe and the speed of the cylinder movements.
Loader Equipment Summary :Loader Equipment Summary VII. A uniform system of hand signals must be used in all front-end loader operations.
VIII. The backhoe is designed to operate efficiently at a preset gallons per minute flow of hydraulic fluid.
IX. The loader is equipped with a four-speed transaxle that permits the gears to be shifted from first or second to third or fourth and back again to third without stopping.
X. Before moving the loader through an area that is soft or muddy, make sure that the loader is moving in a straight direction and that one of the rear wheels is not rotating faster than the other rear wheel.
XI. Failure to use the support strut when servicing the engine can result in serious injury or death if the loader arms are lowered by accident.
XII. The backhoe bucket can be adjusted for two digging positions.
XIII. Failure to use the support strut when servicing the engine can result in serious injury or death if the loader arms are lowered by accident .
XIV. The backhoe can dig more material in less time when a smooth, short dig cycle is used.
Loader Equipment Safety Quiz :Loader Equipment Safety Quiz I. Which of the following loader operational techniques provides greater force and penetration to loosen large rocks
A.) Squeezing the tip of the rocks with the clamshell.
B.) Digging under the rocks with the bucket.
C.) Dozing under the rocks with the blade.
D.) Back dragging the rocks with the clamshell.
Loader Safety Quiz :Loader Safety Quiz II. What action should a loader operator take when loading large rocks into dump trucks?
A.) drop small rocks in the dump bed to cushion the large rocks.
B.) Gently load the large rocks from the lowest possible height.
C.) Place a load of dirt or sand in the dump bed to cushion the large rocks.
D.) Load in the center of the dump with the clamshell.
Loader Safety Quiz :Loader Safety Quiz III. Improper loading techniques with a multipurpose bucket can cause unnecessary damage to the bucket.
A.) True
B.) False
Loader Equipment Safety :Loader Equipment Safety The digging depth of a backhoe attachment is limited by what components?
A.) bucket size and length of the dipper stick
B.) Length of boom and dipper stick.
C.) bucket size and length of boom.
D.) backhoe coupling and positive hydraulic pressure.
Loader Equipment Safety :Loader Equipment Safety IV. What type of fitting allows the easy attachment of the backhoe to the loader?
A.) Quick disconnect hydraulic fittings.
B.) Manual connect hydraulic fittings
C.) forced driven hydraulic fittings.
D.) Screw pin hydraulic fittings.
Loader Equipment Safety Quiz :Loader Equipment Safety Quiz V.) After the backhoe is attached to the 515 dresser loader, the operator should raise the boom arm until the boom arm pivot point is approximately how many inches from the ground?
A.) 6
B.) 15
C.) 20
D.) 36
Loader Equipment Safety Quiz :Loader Equipment Safety Quiz VI. Which of the following problems results from setting the engine throttle in excess of that set for backhoe operations?
A.) Creates excessive engine temperatures.
B.) Creates excessive digging pressure.
C.) Creates excessive hydraulic temperatures.
D.) Creates excessive boom swing.
Loader Equipment Safety Quiz :Loader Equipment Safety Quiz VII. What action can an operator perform that signals a backhoe is warmed and ready for operation?
A.) Check the hydraulic oil temperature
B.) Check the engine oil temperature
C.) Feel the backhoe hydraulic hoses for warmth.
D.) Feel the backhoe hydraulic rams for warmth.
Loader Equipment Safety Quiz :Loader Equipment Safety Quiz VIII. The loader backhoe tractor is equipped with a bucket of what size?
A.) 1.3 cubic yards
B.) 2.0 cubic yards
C.) 2.5 cubic yards
D.) 3.0 cubic yards
Loader Equipment Quiz :Loader Equipment Quiz IX. Which of the following components on the loader backhoe tractor provides equal power to both rear wheels?
A.) limited slip transmission
B.) positive traction transaxle
C.) differential lock
D.) Multi-speed final drive
Loader Equipment Quiz :Loader Equipment Quiz X. Disengaging the differential lock when the loader is turning or when one wheel is rotating faster than the other wheel can cause damage to the transaxle.
A.) True
B.) False
Loader Equipment Quiz :Loader Equipment Quiz XI. What is the first step an operator should perform when preparing to operate the backhoe attachment?
A. Rotate the bucket to the dump position.
B. Remove the swing lockpin
C. Extend the length of the boom
D. Lower the stabilizers
Loader Equipment Quiz :Loader Equipment Quiz XII. The backhoe bucket can be adjusted to a total of how many digging position?
A. One
B. Two
C. Three
D. Four
Loader Equipment Quiz :Loader Equipment Quiz XIII. Before performing any type of excavation, an operator should check or obtain what type of permit?
A. Landscaping
B. Operators
C. Digging
D. Environmental
Loader Equipment Quiz :Loader Equipment Quiz XV. What item determines how much material can be excavated during each digging cycle?
A. The engine rpm
B. Operators expertise
C. The length of the dipper stick
D. The type of material
Loader Equipment Quiz :Loader Equipment Quiz XVI. What is the first step an operator should perform when preparing to operate the backhoe attachment?
A. Rotate the bucket to the dump position
B. Remove the swing lock-pin
C. Extend the length of the boom
D. Lower the stabilizers
Loader Equipment Quiz :Loader Equipment Quiz XVIII. The backhoe bucket can be adjusted to a total of how many digging positions?
A. One
B. Two
C. Three
D. Four
Loader Equipment Quiz :Loader Equipment Quiz XIX. What condition results when an operator of a backhoe attempts to excavate a load that is too large?
A. Positive digging halt
B. Control lever shutdown
C. Hydraulic stall
D. Excavation refusal
Loader Equipment Safety :Loader Equipment Safety Thanks for Participating
My Safety Training Online. Com