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PowerTrain, Steering and Other. > drive axle > Flashcards

drive axle Flashcards

failures and repairs.

1
Q

Excessive pinion to ring gear backlash

A

Noise on drive/Adjust

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2
Q

Worn pinion and ring gear

A

noise on drive/Replace

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3
Q

worn pinion bearings

A

noise on drive/ Replace

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4
Q

loose pinion bearing

A

noise on drive/adjust

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5
Q

excessive pinion end play

A

noise on drive/ Adjust

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6
Q

Worn differential bearings

A

noise on drive/ Replace

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7
Q

Loose differential bearings

A

noise on drive/Adjust

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8
Q

Excessive ring gear run out

A

noise on drive/replace

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9
Q

Low lubricant level

A

noise on drive/ Replenish

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10
Q

Wrong grade lubricant

A

noise on drive/Replace

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11
Q

Bent axle hoising

A

noise on drive/Replace

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12
Q

Axle noises heard on drive will usually be heard on coast although not as loud

A

noise on coast/ Adjust/Replace

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13
Q

Pinion and ring gear too tight ( audible when decelerating and disappears when driving)

A

noise on coast/Adjust

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14
Q

Warped ring gear

A

Intermittent noise/Replace

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15
Q

Loose differential case bolts

A

Intermittent noise/Tighten

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16
Q

Flat spot on pinion or ring gear teeth

A

Constant noise/ Replace

17
Q

Flat spot on bearings

A

Constant noise/ Replace

18
Q

Worn pinion splines

A

Constant noise/ Replace

19
Q

Worn axle shaft dowel holes

A

Constant noise/ Replace

20
Q

Worn hub studs

A

Constant noise/ Replace

21
Q

bent axle shaft

A

Constant noise/ Replace

22
Q

Worn differential side gears and pinions

A

noise on turns/Replace

23
Q

worn differential spider

A

noise on turns/Replace

24
Q

worn differential thrust washers

A

noise on turns/Replace

25
Q

Worn axle shaft splines

A

noise on turns/Replace

26
Q

Fracture of ring gear teeth and tooth toe.

A

Shock impact loading
incorrect adjustment.
Correction: Replace as match set, follow adjustment procedure.

27
Q

Pitted drive pinion
Problem and Correction

A

Extremely severe service
Insufficient lubrication.
Correction: replace as match set, use correct lubrication and interval schedule.

28
Q

scored or worn thrust washer surfaces
Problem and Correction

A

Insufficient/ improper/contaminated lubrication.
Correction: replace any scored/worn washer that is .005” thinner then new one.
use correct lubricant and proper level and interval schedule.

29
Q

Bent axle housing
Problem and cause

A

vehicle overloading
vehicle accident
shock loading.
Correction: Replace axle housing.

30
Q

Fractured axle shaft at flange
Problem and Correction

A

loose wheel bearing.
Bent axle housing
Loose shaft to wheel hub bolts.
Correction: replace the shaft.
check housing distortion, make certain wheel bearings aren’t worn or misadjusted

PowerTrain, Steering and Other. (1 decks)

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