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Steering > Steering Components > Flashcards

Steering Components Flashcards

1
Q

What is the first component of the steering system?

A

Steering wheel

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2
Q

What is the purpose of a steering wheel

A

Gives mechanical advantage

Used as a measuring point for free play in steering system

Drivers contact to steering

Rotary motion

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3
Q

What is the component that connects the steering wheel to the steering box

A

Steering column , rotary motion

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4
Q

How is the column held central to the tube?

A

Bearings or bushes

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5
Q

How is the steering column attached to the steering wheel?

A

Top end is splined or threaded to enable attachment of steering wheel

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6
Q

What does the steering box do?

A

Turns rotary motion into reciprocating motion

Enables a large force to be applied with minimal effort to control the direction

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7
Q

What connects the steering box to the drag link?

A

Drop arm , also known as pitman arm

Connected to a ball joint on the drag link

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8
Q

What does the drag link do?

A

Linear motion, connects the drop arm to the upper steering arm via a ball joint

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9
Q

What connects the drag link to the stub axle?

A

Upper steering arm

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10
Q

How can the upper steering arm be attached to the stub axle?

A

Bolted or forged

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11
Q

What is the alternative name to the lower steering arms?

A

Ackerman arms

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12
Q

What is set by the manufacturer on the lower steering arms to achieve desired characteristics?

A

Precise angle to achieve desired handling characteristics

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13
Q

What is connected to the lower steering arm?

A

Track rod by ball joints

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14
Q

What does twisting the track rod do?

A

Particular steering geometry can be set of adjusted

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15
Q

What are fitted to limit the angle turned by each stub axle?

A

Steering locks

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16
Q

What are the 2 types of steering locks?

A

Adjustable stop

Fixed stop

17
Q

What is backlash?

A

The necessary movement between the teeth of engaged gears

18
Q

What is reversible steering?

A

If you jacked up the vehicle, and physically turned the road wheel to and fro the wheel would rotate

This is because you can overcome the friction in the steering system due to low gear ratio

19
Q

What is irreversible steering?

A

You would not be able to turn the road wheel to and fro

This is because you cannot overcome the friction in the steering system due to high gear ratio

20
Q

On reversible steering systems what are the benefits?

A

Road shocks can be felt

Gives a driver a better feel of the road and makes him more responsive

On lighter vehicles a degree of reversibility is built in

21
Q

What type of steering is on larger vehicles?

A

Irreversible

22
Q

What are the types of steering boxes?

A

Worm or cam and roller

Worm and re circulating ball

Rack and pinion

23
Q

Why is the worm gear hour glass shaped on a worm or cam and roller?

A

To ensure full engagement of the roller throughout the travel

24
Q

Hwo does the worm and re-circulating ball work?

A

Balls recirculate as the nut travels along the thread to separate the worm gear from the nut

The moron of the ball bearing reduces friction and wear between worm gear and nut

25
Q

What are the advantages of the rack and pinion?

A

Less moving parts

Gives driver a more direct feel

26
Q

How is the pinion connected to the column?

A

Through universal joints

27
Q

The rack is connected at each end by what?

A

Tie rods with ball joint

28
Q

What does the adjustable pad on the rack and pinion do?

A

Helps reduce backlash and absorbs road shocks

29
Q

What are the alternative name for ball joints?

A

Rod ends and track rod ends

30
Q

What do adjustable steering connections do?

A

Adjusted to give correct steering alignment

Screwed into ends of steering linkages

31
Q

What are the 2 methods of attachment?

A

Castellated nut and split pin

Nyloc nut

32
Q

How can you tell a castellated nut and split pin?

A

The stud have a hole to take the split pin

33
Q

The castellated nut may be replaced by what?

A

Nyloc nut

34
Q

How many threads should protrude past the nyloc ring?

A

At least 2

35
Q

The nyloc nut cannot be replaced by what?

A

Castellated nut

36
Q

True/false

Never re-use a nyloc nut always replace with a new one

A

True

37
Q

What can be used to remove ball joints?

A

Ball joint splitters

Steering (5 decks)

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