Brakes And Suspension Flashcards

1
Q

What are the three types of suspension?

A

Steel spring
Rubber spring
Rubber torsion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

How many pins, bushings and nuts are on a single, tandum, and Tri-axle?

A

Single- 6
Tandum- 14
Tri-axle- 24

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What’s the purpose of a shock absorber?

A

To control bounce and maintain tire to the road contact

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What can worn suspension cause?

A

Tire wear
Poor handling
Noise

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What will loose U bolts cause?

A

Can cause broken centre bolts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What will a broken rebound clip cause?

A

Can cause main leaf breakage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

How much of a life will an axle flip give you?

A

4-6 inches

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What’s the recommended camber for a axle?

A

3/8 degree

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What’s the recommended toe in angle?

A

1/8 inch

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

How often should you re-torque?

A

After the first 50 and 100 miles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is static unbalance?

A

When there’s a heavy spot on a part of the tire or wheel assembly

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What’s dynamic unbalance?

A

Weight of the wheel and tire is uneven towards the edge of the wheel

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What will unbalanced wheels cause?

A

Suspension wear

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is UVW?

A

Unloaded vehicle weight

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is servo breaking?

A

When the primary shoe pushes up against the secondary forcing it against the drum.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What causes spongy brakes.

A

Boiling water or clean fluid

17
Q

Surge brakes are not used with what kinda hitch?

A

Equalizing hitches. And cannot be used with friction sway controls

18
Q

What’s the maximum weight trailer that you can use surge brakes on?

A

6,000 ibs

19
Q

What pulls the brake shoes away from the drum?

A

The return springs

20
Q

What’s the surface that the magnet comes in contact with?

A

The armature

21
Q

What’s the three types of brake controllers?

A

Inertia
Electric actuator
Hydraulic

22
Q

What determines the full potential braking?

A

Battery voltage

23
Q

How fast do you drive when setting the brake controllers?

A

40km/h

24
Q

When adjusting brakes, turn to lock up the back off how many clicks?

A

5-7. Or till slight drag

25
Q

At what point do you need to replace brake shoes?

A

1/32 from rivets

1/16 from bond Line

26
Q

How much amp draw per brake?

A

6-7 per axle

Or 3-3.5 amps per brake

27
Q

How much can you machine off the armature?

A

0.010”

28
Q

How much can you machine off the drum surface?

A

0.030” less the the max diameter

29
Q

What can you not use of cast iron parts?

A

Petroleum products

30
Q

What grease is recommended to use?

A

Extreme pressure

31
Q

What’s the minimum sized brake wires?

A

14 gauge

32
Q

What’s the blue wire from the brake controllers?

A

Power to trailer brakes

33
Q

What the red wire from the brake controllers?

A

Cold side of the brake light switch

34
Q

What’s the maximum you can hone off a hydraulic brake?

A

0.005”