steering A-B

Question 1

what is wheel lean

Answer 1

the ability to tilt the wheels side to side

Question 2

when a grade is moving dirt with the blade set to an angle the machine will have a tendency to move to

Answer 2

the leading edge of the blade

Question 3

how can you offset the machine being pulled in he direction of the leading edge of the blade on a motor grader

Answer 3

with the wheel tilt function

Question 4

what is an advantage of rear wheel steering

Answer 4

tight maneuverability - less effort to steer the wheels

Question 5

what is a disadvantage of rear wheel steering

Answer 5

heavy loads can cause the wheels to lose traction - cant handle high speeds

Question 6

what is crab steering

Answer 6

allows all four tires to turn

Question 7

what is circle steering

Answer 7

when the rear tires turn on the same track as the front tires

Question 8

when a machine has a combination steering set up how are the wheels normally operated

Answer 8

with the steering wheel controlling one axle either the front or the back

Question 9

when a combination steering system needs to be operated in crab how are the wheels controlled

Answer 9

the steering wheel will operate the front or the back axle while a separate switch or lever is required to operate the other

Question 10

what type of steering would allow a heavily loaded machine to be operated in tight or confined areas

Answer 10

skid steer

Question 11

what is articulation steering

Answer 11

when two half’s of a machine pivot at a articulation joint by hydraulic cylinders

Question 12

what is a part time power steering system

Answer 12

is a power assist system - amount of assist depends on wheel resistance

Question 13

what is full time power steering assist

Answer 13

provides total power steering as long as the engine is running

Question 14

what is a follower valve used for

Answer 14

when a steering wheel is turned and held at a certain position the valve will move the cylinders to match the angle held by the steering wheel

Question 15

what is another name for a full time power steering system

Answer 15

a hydraulic steering system or subsystem

Question 16

what might be the reason for jerky hydraulic motion

Answer 16

aerated hydraulic oil

Question 17

what is sudocavitation

Answer 17

aeration

Question 18

what is one of the most important factors in a long lasting hydraulic system

Answer 18

clean hydraulic oil

Question 19

what is a reversing valve

Answer 19

a directional control valve

Question 20

what is a HMU

Answer 20

hydraulic metering unit

Question 21

what is another name for a HMU

Answer 21

orbital

Question 22

how do hydraulic cylinders in a steering system operate

Answer 22

in a push pull configuration

Question 23

what is a steering cushion

Answer 23

used to limit the maximum turning angle

Question 24

what is a neutralizer valve

Answer 24

used to relieve or unload hydraulic pressure just as the maximum angle is reached . this reduces the maximum impact force at the steering cushions

Question 25

what are the two types of filters used

Answer 25

depth and screen type

Question 26

is there a mechanical connection between a full time power steering system

Answer 26

no

Question 27

why does a co-ordinated steering system on a loader require less effort

Answer 27

because the rear wheels follow in the same path as the front wheels so they do not have to break new ground during the steering process

Question 28

what is another name for the tractor scraper articulated hitch assembly

Answer 28

the goose neck

Question 29

never use your hand to check for

Answer 29

hydraulic oil leaks

Question 30

why must hydraulic oil be raised to proper operating temp before testing can begin

Answer 30

to eliminates any uncertainty during testing due to thick oil, leakage and or poor circulation

Question 31

what must you do to systems containing hydraulic accumulators

Answer 31

properly discharge the system

Question 32

when working in the articulation hitch area what should be installed

Answer 32

lock bar or safety bar

Question 33

when removing pivot pin caps you should never use

Answer 33

a hammer - mating surfaces can become deformed

Question 34

what does the tie rod provide in a steering system

Answer 34

proper toe adjustment

Question 35

what might have to be adjusted before tie rod end play can be determined

Answer 35

loose wheel bearing may be interpreted as tie rod endplay

Question 36

when disconnecting articulation hitch what should be considered before removal

Answer 36

support the front and rear of the machine with stands to prevent them from dropping when disconnected

Question 37

what are the two types of directional control valves

Answer 37

HMU - Spool steering valve

Question 38

hydraulic skid steering system typically involves

Answer 38

a closed loop system

Question 39

what is another name for the swash plate in a hydraulic piston pump

Answer 39

cam plate

Question 40

the ability of the hydraulic cooler is greatly dependant on

Answer 40

the amount of airflow through the cooler assembly

Question 41

the only way to completely remove all contaminants from the hydraulic steering system is to

Answer 41

remove disassemble and thoroughly clean and flush

Question 42

if the machine steering system is unsafe and movement of the machine would be a danger you should not

Answer 42

take it out for a road test

Question 43

even if the machine is equipped with quick couplers

Answer 43

you should release the system pressure and loosen the quick coupler seal caps very slowly in case system pressure exists