Steering

Question 1

Conventional steering usually uses _______ frame

Answer 1

straight and one piece

Question 2

Articulated graders are the exception to which steering system?

Answer 2

conventional

Question 3

When using conventional steering to turn right, which wheel turns a smaller radius?

Answer 3

the inner wheel, (right wheel)

Question 4

What is all wheel steer system?

Answer 4

steering that uses front and rear steerable axles

Question 5

What conditions are in an articulated steer system?

Answer 5

has 2 piece frame, pivots on a centre hinge

Question 6

When is the greatest stress applied on a steering system?

Answer 6

when its loaded, stationary, brakes applied, or working on soft ground

Question 7

What is the cause of this?
worn or improper steering components, scrubbed tires or tire tread being ground off

Answer 7

incorrect steering geometry

Question 8

Hydraulic steering is also called?

Answer 8

power steering

Question 9

What degree of direction is changed when power flow goes through a gearbox?

A. 50
B. 90
C. 118
D. 180

Answer 9

B

Question 10

Two types of steering boxes?

Answer 10

worm and recirculating ball

Question 11

What component transfers motion from the steering boxes splint output to the drag link?

Answer 11

pitman arm

Question 12

What component is being described?
may be adjustable in length and has a ball joint attached on each end of it.

Answer 12

Drag link

Question 13

The drag link connects which components together?

Answer 13

pitman arm and steering arm

Question 14

What type of seal is used on a wheel hub? static or dynamic?

Answer 14

dynamic

Question 15

Technicians adjust _____ steering units to reduce steering wheel play, and test with a flow meter

Answer 15

manual

Question 16

Is caster angle above or below 90 degrees?

Answer 16

slightly below

Question 17

what is the purpose of caster?

Answer 17

helps self centre the wheels after a turn and keeps unit stable at high speed

Question 18

what adjustment are you making below?
put tapered shims between the axle and leaf spring

Answer 18

caster

Question 19

what is the most common setting in regard to toe?

Answer 19

slight toe in

Question 20

What does toe in assist with?

Answer 20

when driving, the wheels will toe out, so you set toe in to counter that

Question 21

How do you change toe angle?

Answer 21

adjust tie rods

Question 22

What does Ackerman angle assist with?

Answer 22

making sure inner tires turn at a smaller radius than outer tires

Question 23

Priority valves do what?

Answer 23

ensure the steering and braking system has oil first before all other implement circuits for safety

Question 24

The hydraulic steer system replaces what components of a mechanical system?

A. steering box
B. pitman arm
c. steering arm
d. all of the above

Answer 24

d

Question 25

What are other names for an HMU?

Answer 25

char-lynn orbital metering pump

Question 26

what valve mounts to both sides of an articulated machines pivot points to stop the turning effort when the pivots are contacted?

Answer 26

neutralizer valve

Question 27

in an HMU, what centers the inner and outer valves inside the HMU?

Answer 27

leaf springs

Question 28

in an HMU, a bypass orifice is used to introduce a small leak into the pressure side of the steering valve. what is its purpose?

Answer 28

dampen initial pressure surge when wheel is partially turned. it closes when steer wheel is straight

Question 29

Crossover relief valves in the HMU protect?

Answer 29

against pressure spikes from sudden excessive loads

Question 30

The steering wheel should have a specific amount of resistance. how is this measured?

Answer 30

with a fish scale

Question 31

can you use heat when removing a tie rod?

Answer 31

noooooo

Question 32

joystick steering can use what two ways to control main steering control valve?

Answer 32

poppet valve or position sensor

Question 33

Disadvantage of using steering clutches and brakes?

Answer 33

can only drive one track when turning

Question 34

What's the difference between a steering planetary and an equalizing planetary?

Answer 34

steering is closer to powertrain input, equalizing is closer to the wheels/tracks

Question 35

What is special about the equalizing planetary set?

Answer 35

RING GEAR IS ALWAYS HELD

Question 36

Is cross steer used on downhill grades?

Answer 36

yes

Question 37

On a hydrostatic closed loop system with variable displacement pump and motor, where is the swash plate angle for both pump and motor for max torque?

Answer 37

pump near 0 swash angle, motor full angle

Question 38

On a hydrostatic closed loop system with variable displacement pump and motor, where is the swash plate angle for both pump and motor for max speed?

Answer 38

pump full angle, motor at min angle