PM4 Maintenance Interval Schedule (MIS): Articulated Truck Family

Failure to lock out equipment before working on it accounts for:

1. 2% of the industrial accidents each year.

2. 5% of the industrial accidents each year.

3. 10% of the industrial accidents each year.

4. None of these answers are correct.

10% of the industrial accidents each year

The courseware, PM4 Maintenance Interval Schedule (MIS): Articulated Truck Family, is designed to:

1. acquaint you with the unique and critically important steps required to conduct a PM4 on an articulated truck.

2. increase your knowledge of important safety steps in the PM4 on an articulated truck.

3. raise your confidence in performing the critically important steps of the PM4 on an articulated truck.

4. All of these answers are correct.

All of the answers are correct

An important part of ensuring your safety is dressing properly. Which one of the following general safety guidelines with respect to attire is incorrect?

1. Wear safety glasses

2. Wear safety shoes

3. Personal music devices or AM/FM radios are strictly prohibited

4. Wearing finger rings is acceptable

Wearing finger rings is acceptable

When you manually check the engine oil as you are preparing to do maintenance and notice the oil is below the minimum level:

1. nothing needs to be done; you will change the oil anyway as part of the PM4.

2. avoid adjusting the level by adding oil as this may influence your oil sampling readings.

3. operate the machine, but only at low idle.

4. add oil to the minimum level and note the low level on the TA1 Visual Walk-Around Inspection Report form.

add oil to the minimum level and note the low level on the TA1 Visual Walk-Around Inspection Report form.

While performing a safety walk around on the machine, which one of the following guidelines is incorrect?

1. Inspect the area around the machine and under the machine. Look for loose bolts, trash buildup, oil or coolant leakage, broken parts, or worn parts.

2. Be sure the area is free of personnel. Make sure no one is underneath the machine, around the machine, or on the machine.

3. Be sure the machine is parked on a 20% grade with the truck bed in the upright position.

4. Make sure the transmission control is in the PARK position. On some trucks, the transmission control must be put into the NUETRAL position.

Be sure the machine is parked on a 20% grade with the truck bed in the upright position.

When checking the engine coolant level on engines equipped with an overflow bottle:

1. don’t just check the coolant level in the overflow bottle. It is possible for the coolant level in the radiator to be low, even if there is coolant in the overflow bottle.

2. check the level in the overflow bottle. The reading is accurate because the radiator will always be at the same level as the overflow bottle.

3. check the color of the fluid in the overflow bottle and compare it to the color of the fluid in the radiator. If the color is the same, the level is accurate.

4. the level of coolant is sufficient, as long as you see fluid in the overflow bottle.

don’t just check the coolant level in the overflow bottle. It is possible for the coolant level in the radiator to be low, even if there is coolant in the overflow bottle.

Do not run the secondary steering motor longer than ____________ while you’re testing the secondary steering.

1. 30 seconds

2. 12 seconds

3. one minute

4. none of these answers are correct

12 seconds

The test for the parking brake holding ability must be carried out with or without the rated load in the body?

1. with

2. without

With

To complete the service on the differentials and final drives, the machine must be in operable condition because _______________________________ ?

1. you must drive the machine no less than 5 miles to loosen any sludge or contaminants that may be inside.

2. you will need to warm the fluids prior to draining.

3. the machine must be repositioned multiple times to service each final drive.

4. None of these answers are correct.

the machine must be repositioned multiple times to service each final drive.

The procedure for filling the front, center, and rear differentials and final drives with oil is different with each axle. (True or False)

False

Prior to releasing the pressure in the hydraulic system, turn the battery disconnect switch to the OFF position and remove the battery disconnect switch key. (True or False)

False

When servicing the Hoist/Ejector System and Brake System Oil Filter Elements and Screen:

1. replace both the elements and screen with new units.

2. replace the elements and clean the screen.

3. clean both the elements and screen, then reinstall.

4. None of these answers are correct.

replace the elements and clean the screen

When cleaning the Torque Converter Scavenge Screen:

1. use the same procedure as used to replace the hoist/ejector system and brake system oil filter elements and to clean the screen.

2. use the same procedure as used to replace the primary and secondary air filter elements.

3. refer to the OMM for the recommended procedure for the machine being serviced.

4. None of these answers are correct.

refer to the OMM for the recommended procedure for the machine being serviced.

When changing the brake control valve damper oil, remove the breather and clean it in a clean, nonflammable solvent, then reinstall. (True or False)

False

If the engine stops running after priming the fuel system:

1. prime the fuel system again.

2. change the fuel filters and try again.

3. drain all the fuel in the system and replace the fuel filters, again.

4. None of these answers are correct.

prime the fuel system again.

Cleaning the air filter elements by gently bumping or tapping them on the ground is acceptable? (True or False)

False

Which one of the following statements is correct?

1. The primary air filter must be replaced while the secondary air filter can be cleaned up to six times.

2. The primary air filter element can be cleaned up to six times while the secondary air filter element must be replaced.

3. Both the primary and secondary air filter elements can be cleaned up to three times before needing to be replaced

4. Neither the primary, nor the secondary air filter elements can be cleaned; each must be replaced.

The primary air filter element can be cleaned up to six times while the secondary air filter element must be replaced.

Frame and body inspections should be carried out:

1. at intervals no longer than 100 hours or three months

2. at intervals no longer than 1,000 hours or six months

3. monthly

4. None of these answers are correct.

at intervals no longer than 1,000 hours or six months

Which one of the following components should be given particular attention as part of the regular frame and body inspection?

1. oscillating hitch

2. mounts for suspension

3. front suspension A-frame

4. All of these answers are correct.

All of these answers are correct

Temporary repairs to the ROPS and/or FOPS are acceptable if damage is limited to bent structures only. (True or False

False

The ejector blade should be checked periodically:

1. for proper alignment with the body prop.

2. for leaks.

3. in order to prevent excessive wear.

4. All of these answers are correct.

in order to prevent excessive wear

If the clearance of the ejector blade is incorrect, it will be necessary to:

1. adjust the height of the blade with the addition or removal of shims.

2. replace the blade with a new one.

3. replace the pitch rollers with new ones.

4. None of these answers are correct.

adjust the height of the blade with the addition or removal of shims

The engine valve lash must be within specifications prior to or after adjusting the lash for the electronic unit injector?

1. Prior to

2. After

Prior to

After putting the No. 1 piston at top center position on the compression stroke, turn the flywheel by 360 degrees in the direction of engine rotation to put the No. 1 piston at top center position on the exhaust stroke. The direction of engine rotation is ______________ as the engine is viewed from the flywheel end.

1. clockwise

2. counterclockwise

counterclockwise

Adjustment of the lash for the compression brake must be performed:

1. after the engine has been warmed to operating temperature

2. while the engine is cold.

3. while the engine is warm or cold; it will not matter either way.

4. None of these answers are correct.

while the engine is cold.

The compression brake lash is measured between the rod for the compression brake and the exhaust rocker arm. Make all adjustments while the engine is stopped and the exhaust valves are _______.

1. open

2. closed

closed