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62 Cards in this Set

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When bearings wear and retainers start to break up in the standard transmission, the noise this creates is generally referred to as what?

Growling

8-5

T/F Possible causes of noise while the transmission is in gear is include noisy speedometer gears?

True

8-6

Of the many places a transmission can leak oil, what is the one location that can cause a complete failure of the transmission should it leak?

Rear Main Seal

8-11

A damaged o-ring in the range air shift lever will bleed air into the transmission pressuring it and resulting in oil leakage in what component?

Front Bearing Cover in the Auxiliary Housing

8-12

Among the few causes, what is the most likely cause for the standard transmission to slip out of gear?

Worn detent balls or springs

8-14

Even though you have the repair manual for your vehicle, before ordering any parts for your transmission, what should you check to be sure it is the correct transmission?

(TID) Transmission Identification Tag

8-15

What safety feature does a transmission jack have to keep the transmission from falliing?

Saddle, chains, and straps

8-15

When removing the transmission, what should you do before removing any cross members?

Place a jack under the engine and transmission

8-15

What tool might you use to drive out the counter shaft when disassembling the standard transmission?

Arbor shaft

8-18

What parts are generally recommended to be replaced during reassembly of the standard transmission even though they may not show any identification of problems before disassembly?

Seals and gaskets

8-20

One of the most tedious procedures is replacing needle bearings in the counter shaft gears. What can you do to make this procedure easier?

Coat the bearings with heavy greese

8-21

T/F When installing the standard transmission, one helpful action is to use the transmission bolts to draw the transmission into the clutch housing?

False

8-23

What special tool or rod can you use to adjust the linkage on many types of standard transmissions?

Alignment Pin

8-27

What mechanical unit splits power between the front and rear axles?

Transfercase

8-28

What should be the next step if you detect an oil leak around the transfercase, and upon checking you find the oil level is unsatisfactory?

Check other parts of the vehicle

8-31

As a mechanic you may encounter abnormal noise coming from the transfer case which unfortunately could be caused by one or more of its various components. What is the solution to the problem?

Remove the transfer case and overhaul it

8-32

What component has failed if, when checking the transfer case for shudder, you discover silicone in the oil?

Viscous coupling

8-33

What is the first step for removing the transfer case for repairs?

Disconnect the negative battery cable

8-35

Which component will you probably have to remove as an assembly if your transfer case has a drive chain?

Sprockets

8-38

What components can strip so cleanly as to appear machined smooth when you are inspecting the planetary gear assembly of the transfer case?

Splines

8-39

What parts are usually installed at the same time as the gears they operate when You are assembling the transfercase?

Shift forks

8-42

What should you install after removing the rear half of the housing or the bearing retainer after discovering the endplay of the transfer case to be incorrect?

Thicker or thinner thrust washers

8-43

T/f You will find Ptos only on dump trucks?

False

8-45

Of the 6 types of PTOS referred in the chapter, which is the most common type found in trucks?

Side mount

8-45

What term refers to the space between meshing surfaces of the gears in the gearbox devices?

Backlash

8-46

What type of greese should be applied when pumps are mounted directly to the PTO output?

Anti-sieze

8-47

The basic driveshaft assembly is made up of U-joints, slip splines, propeller shafts and ____?

Yokes

8-49

In what type of driveline configuration are the working angles of the U-JOINTS driveshaft equal, but the companion flanges and/or yokes are not parallel?

Parallel-Joint

8-50

T/F. The faster a driveshaft turns, the higher the allowable working angle rises?

False

8-52

What two components of the drive shaft must be perfectly In line with each other to be in phase?

Yokes

8-53

What is the typical minimum OEM Spec, in inches, when you are inspecting the looseness across the U-Joints Bearing Caps and Trunions?

.006

8-54

Heavy duty driveshafts typically use what type of greese?

Lithium soap based greese

8-55

What service schedule could you use for servicing the slip splines?

Same as the U-Joints

8-56

When replacing hanger bearings, make sure you look for and do not lose track of what?

Shim packs

8-57

When removing U-Joint cups, Ensure the bearing caps stay matched with the ?

Trunion

8-57

Although acceptable, what is the least preferred method to remove a U-Joint?
Place in a vise and tap the yoke

8-58
T/F Regard a U-Joint Cross, its 4 bearing assemblies and mounting hardware as a unit, and replace as such.
False
bearing caps and truinion only

with the full round end yoke, what is the next step after both bearing cups have been seated in the yoke, the lock plate tab is in place, and and the bolts are in the yoke threads?

turn them in first by hand

8-62
an unbalanced driveline causes transverse ____ and bending ____ in the driveshaft?

Vibrations and movements

8-63

what tool is used to measure operating angle on the driveline?

inclinometer

8-64

what can be installed to correct the U-Joint operating angle on a vehicle with leaf spring suspension?

Axle Shims

8-66

Drive shaft runout requires the taking of fine measurements and generally the tool used is a?

dial indicator

8-67

how many degrees should the machined shoulder of a half round yoke or yoke bores be to the centerline of the shaft the yoke is attached to?

90


T/F The PTO will always be driven by a driveshaft.
False

8-69
As you go through the steps to remove the differential, as a safety precaution, you should not remove the axle retaining nuts until you have loosened which components?

Tapered Spring Dowels

8-72
when removing the rivets on the crown gear, use a drill bit that is ___inch smaller than the body diameter rivets?

1/32

8-76

when removing the drive pinion and bearing cage, what tool might you use if the yoke or flange is tight on the pinion?

Prybar

8-77

when removing the pinion oil seal during disassembly of the drive pinion and the earing cage, what is the procedure if it is a one piece design?
Discard

8-78
aligning the oil slots in the shims with the oil slots in the bearing cage and carrier is part of the installation of which component?

Drive Pinion and Bearing Cage

8-79

what can you do to the ring gear for easy installation?

expand be heating in a tank of water

8-81

what is the proper procedure for the fasteners after installing the hardware into the case halves of the differential?

Tighten in a opposite pattern
8-81

to install the bearing caps over the bearings and adjusting rings, tap each cap into position with which tool?

Light leather mallets, plastic mallets or rubber mallets

8-83
what should the end paly measurement typically be, in inches, when you are checking a rebuild power divider with reused components?
.003 - .007

8-86
the runout of the crown gear must not exceed ___ inches?

.008

T/F If the used crown gear and pinion gearset is installed, you can use the setting that was measured before disassembly?

True
8-87

how should the correct pattern appear when you are checking the tooth contact pattern on a new gearset?
pattern will be well centered on the crown teeth
8-90
There are a couple of variations of the semi-floating axles. Which type is sometimes referred to as the C-Lock axle because of the shape of the locking clip?

Roller Bearing Version
8-93

The full-floating axle will typically be found on what type of vehicle/equipment?

Large, Slow Moving Off Road

8-94

what will cool components that are subject to friction?
Lubrication

8-95
How many degrees is typically the difference in boiling points of syn-oil which is higher then Conventional Oil which is lower?

250 deg.

8-96

What is the recommended lubricant to use in drive axles?

API-GL-5
8-96
For Approximately how many mins. should you wait before checking the oil level in the differential drive axle after operation?
5

8-98