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OTC - Diesel Drive Train DET-103 > Week #2 - RoadRanger: Theory of Operation (Chapter 16) > Flashcards

Week #2 - RoadRanger: Theory of Operation (Chapter 16) Flashcards

1
Q

True or False: A damaged transmission output yoke should always be replaced.

A

True

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2
Q

True or False: A damaged transmission output yoke can be repaired by installing a yoke sleeve kit.

A

False

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3
Q

True or False: An advantage of using synthetic transmission lubes is that they are compatible with all other gear lubes.

A

False

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4
Q

True or False: High gear lube level in a standard transmission can cause aeration and result in lubrication failures.

A

True

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5
Q

Which of the following would most likely result in heard shifting?

a. weak detent springs
b. worn shift fork pads
c. sliding clutch gears worn to a taper
d. lack of lubricant in remote shift linkage

A

d. lack of lubricant in remote shift linkage

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6
Q

True or False: A driver complains that the vehicle jumps out of gear when driven over a bumpy road surface, so the problem could be worn gear clutch teeth.

A

True

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7
Q

True or False: An auxiliary section can be removed and overhauled without removing the transmission from the chassis.

A

True

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8
Q

True or False: Lack of lubrication damage can be caused in a standard transmission when coasting with the clutch depressed.

A

True

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9
Q

True or false: When disassembling a standard, twin countershaft transmission, the mainshaft must be removed before removal of the countershaft bearings.

A

False

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10
Q

Which of the following would indicate that transmission oil in a truck standard transmission is at the correct level?

a. Oil is level with the filler hole.
b. Oil is visible through the filler hole
c. Oil is reachable with the first finger joint through the filler hole.
d. Oil is a the high level on the dipstick.

A

a. Oil is level with the filler hole.

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11
Q

True or False: A shift rail assembly cannot be removed and repaired without first removing the transmission from the vehicle.

A

False

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12
Q

True or False: Before timing the auxiliary countershafts, the countershaft bearings must be fully seated.

A

False

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13
Q

True or False: A gearshift tower cannot be separated from a shift rail assembly.

A

False

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14
Q

rue or False: When removing a transmission from a truck, it should be held in alignment with the engine to prevent the flywheel pilot bearing from being damaged.

A

True

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15
Q

True or False: Oil is discovered to be leaking from the rear seal area of a standard transmission, so the problem could be a damaged speedometer sleeve O-ring or gasket.

A

True

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16
Q

True or False: A driver complains that the vehicle jumps out of gear when driven over a bumpy road surface, so the problem could be worn detent notches in the shift rail.

A

True

17
Q

True or False: A transmission must be disassembled to replace an input shaft.

A

False

18
Q

A driver complains of driveline vibration. Which of the following would be the least likely cause?

a. failed synchronizer
b. clutch failure
c. tires out of balance
d. output shaft nut improperly torqued

A

a. failed synchronizer

19
Q

True or False: When towing a truck from the front, the axle shafts should be pulled.

A

True

20
Q

Which of the following is said by transmission OEMs to cause most transmission bearing failures?

a. dirt
b. lack of lubrication
c. operation on rough highways
d. improper shifting

A

a. dirt

21
Q

After breaking in a new transmission filled with E-500 synthetic lube on a truck used in a linehaul application, when should the first oil change take place?

A

After 500,000 miles (800,000 km) of linehaul service

22
Q

Which of the following transmission components are splined to the mainshat in a standard, twin countershaft transmission?

a. sliding clutch
b. first speed gear
c. idler gear
d. countershaft gears

A

a. sliding clutch

23
Q

True or False: Oil is discovered to be leaking from the rear seal area of a standard transmission, so the problem could be caused by a cracked bearing cover.

A

True

24
Q

True or False: When removing a transmission from a truck, it is usually necessary to uncouple the clutch from the flywheel before separating the transmission from the flywheel housing.

A

False

25
Q

Which of the following OEM approved lubricants would produce the longest service life in a standard transmission?

a. SAE 50 grade heavy-duty engine oil
b. SAE 50 grade transmission flluid
c. synthetic E-500 gear lube
d. multipurpose or EP gear lube

A

c. synthetic E-500 gear lube

OTC - Diesel Drive Train DET-103 (6 decks)

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