402B: Steering Service

Question 1

What is the maximum allowed internal flow rate loss when load testing?

Answer 1

1 gal/min

402B Pg. 36

Question 2

What is the procedure to reset a clockspring if the tape comes off or was not taped before removal?

Answer 2

1-Turn the cover counter-clockwise until it locks
2-Turn the cover clockwise 4.5 times
3-Align the arrows on the top cover and the bottom housing
4-Tape the assembly and install clockspring

402B Pg. 6

Question 3

Why must you tape the clockspring together when removing?

Answer 3

To maintain it’s position and prevent damage.

402B Pg. 6

Question 4

When installing the steering wheel, what could cause damage to the clockspring during assembly?

Answer 4

Make sure the clip on the clockspring lines up with the slot on the steering wheel

402B Pg. 7

Question 5

When removing tie-rod ends, what should be done to make sure the toe isn’t chaged during reassembly?

Answer 5

Mark the location of each old tie-rod end and count the number or rotations required to remove it . Then install the new tie-rod with the same number of turns.

Question 6

When testing the poppets, what should the pressure be with 20 lbs of force on the wheel at full turn position?

Answer 6

200 to 400 less than pump relief pressure

402B Pg. 36

Question 7

When measuring king pins for wear, what is the maximum allowable wear for the bushings when the top of the tire is rocked in and out?

Answer 7

0.015”
Measured at the top and lower bushing

402B Pg. 12

Question 8

What are the two main hydraulic tests preformed on a power steering system?

Answer 8

1. Steering pump pressure
2. Steering pump flow rate

402B Pg. 31

Question 9

Why must you disconnect the battery ground cable when removing the steering column?

Answer 9

To prevent accidental arcing or discharge of the SRS

Question 10

How should the axle stops be set so the poppets operate properly?

Answer 10

So that there are at lest 1 3/4 steering wheel turns from a straight ahead position to a full left or right turn

402B Pg. 45

Question 11

When road testing a truck for power steering problems, what are the two general characteristics that must be considered?

Answer 11

• Steering response
• Vehicle handling

402B Pg. 29

Question 12

When measuring the steering knuckle for vertical wear, what is the maximum amount of wear allowable before the shims and bearings should be inspected?

Answer 12

0.012”
(0.100” CVIP Max)

402B Pg. 14

Question 13

When load testing the power steering system with a flow meter, what is the maximum time that the valve should be kept closed for?

Answer 13

Max 5 seconds

Question 14

When installing new bushings into kingpin bores, how should the bushing be oriented?

Answer 14

With the seam of the bushing is 90 degrees to the spindle

402B Pg. 13

Question 15

What is used to retain the kingpin in the axle and steering knuckle?

Answer 15

Draw keys

402B Pg. 14

Question 16

What check should always be performed before road testing a vehicle?

Answer 16

Visual insection
Vehicle must be safe enough to go on a road test

402B Pg. 3

Question 17

Before adjusting the poppets, what else must first be adjusted?

Answer 17

Steering stops

Question 18

what would a squealing noise indicate during corners on a road test

Answer 18

tire skid is excessive

Question 19

When trouble shooting steering problems, where is the first place you should look?

Answer 19

Tires

Question 20

When measuring the cross tube assembly for looseness, what is the maximum allowable wear?

Answer 20

0.060’’

402B Pg. 16

Question 21

When must you adjust automatic adjusting poppets?

Answer 21

• Changing to a larger tire
• Reducing wheel cut for any reason
• Damaged steering stop bolts that have been replaced
• Steering gear stop bolts that have been replaced

402B Pg. 44

Question 22

When installing kingpin grease seals, what direction must the lip be facing?

Answer 22

Toward the center of the knuckle

402B Pg. 14

Question 23

when the pitman arm has been removed from the sector shaft what will happen if the steering gear is turned more than 1 1/2 times

Answer 23

it will affect the initial poppet valve setting and it will have to be reset

Question 24

what is one check to make before removing a steering wheel

Answer 24

check to see if it has a SRS system

Question 25

when should you replace a pressure relief valve during a load test

Answer 25

if the pressure rises above the intended spec or the pressure is erratic during the test

Question 26

if the fastener that holds the pitman arm to the drag link becomes loose and the mounting hole becomes damaged what should you do

Answer 26

replace the pitman arm and draglink

Question 27

what are the two types of steering gear mounting configurations

Answer 27

standard and inverted

Question 28

is the clock spring serviceable

Answer 28

no

Question 29

when will manually adjusted poppets have to be adjusted

Answer 29

. replacing the steering gear with new or rebuilt . changing the wheel cut for any reason . replacing damaged steering stop bolts . changing a damaged component that required the removal and installation of the steering stop

Question 30

when replacing a draglink end into the drag link tube what must you make sure of

Answer 30

that the threaded end is completely inserted into the drag link tube

Question 31

if the kingpin is seized can heat be used to remove the kingpin

Answer 31

no follow manufacture spec

Question 32

if a steering wheel has a master spline

Answer 32

it can only be installed in one position

Question 33

when replacing the king pin thrust bearing it should be placed where

Answer 33

between the underside of the axle and the bottom steering knuckle yolk

Question 34

when backing out a manual adjusting screw you should never go farther than

Answer 34

1" - 1 1/16 " or you risk striping the threads

Question 35

when checking universal joints you must make sure that they are

Answer 35

in phase with each other

Question 36

what is important to remember when removing a steering column with a tilt or collapsible steering column

Answer 36

they are under spring tension and should be in the upright position to lessen spring tension