The main drawback of a single universal joint is that:
Universal joints are "phased" to:
Some slip joints are coated with a nylon compound to:
The two most significant factors in reducing drive line failure is:
To check a driveline assemble for run-out, you must perform dial indicator tests at three different locations on:
The prime function of a drive line is to:
One of the first signs of drive line trouble is usually:
A constant velocity joint eliminates the:
On a single shaft with parallel driveline alignment if the transmission is at +3 deg. the front differential should be at:
A differential drive axle which does NOT support load and only supplies torque to drive the wheel is called:
A differential drive axle which does support load and supplies torque to drive the wheel is called:
Power transmission through the differential until when the vehicle travels straight ahead is, from the pinion through the ring gear and from the casehalf to the:
To ensure proper lubrication of the interaxle differential, some large carriers assemblies use:
The simplest type of wheel traction equalization is the:
If the operators were to pay attention, one of the first symptoms noticed of pending carrier trouble would be:
Gear tooth fracture is frequently caused by:
Numbers etched on the pinion gear indicate: 1. set number. 2. tolerance of the gear set and 3. ___________________________.
Excessive toe adjustment on the drive side the pinion gear to the driven side of the ring gear will require _________________________.
A differential shows spalling on the teeth of the crown gear, while the gear teeth of the pinion have no signs of wear. What should the technician do?
You are setting the correct thrust screw clearance, on a carrier assembly that has a thrust block. Technician A says that on this particular unit, you turn the thrust screw until it stops against the ring gear or thrust block, then tighten one-half turn, and lock the jam nut. Technician B says that on this particular unit, you turn the thrust screw until it stops against the ring gear or thrust block, then loosen one-half turn, and lock the jam nut. Who is right?
A technician is measuring pinion to crown backlash with a dial indicator. After following the proper procedure, the dial indicator reads "0" backlash. What should the technician do next?
If the backlash measurement for the ring gear is out of specifications, how can the backlash measurement be brought into tolerance?
A technician notices excessive play in the differential spider and side gears. How might the technician fix the problem?
If a crown and pinion gear teeth contact pattern is properly adjusted the pattern imprint design left will:
During disassembly, the technician notices slight marks on the face of the thrust block. What would this indicate?
What should a technician do when repairing a differential equipped with an internal lubrication pump?
If the rear end ratio is 5.29:1, the driveshaft is turning at 1400 rpm, what would the wheel RPM be? (rounded to the nearest rpm)
On a traditional differential assembly, while cornering, if the inner wheel turns at 7/8 vehicle speed, how fast does the outer wheel turn?
When crown and pinion gears are used in conjunction with a spur and bull gear set in the same axle assembly, you have:
An amboid gear set has:
To correct a situation where a pinion bearing preload is too loose, you would need to:
On a typical off road vehicle or a large bed truck with a planetary gear system mounted in the wheel assembly, which member of the planetary is attached to the AXLE HOUSING?
When a driver controlled traction differential is in the locked position, the differential action is eliminated.
Wheel spin out (vehicle stuck and only one wheel turning on an axle) and the resulting heat, which components of a differential is most likely to be damaged first?
All of the statements below are correct in that damage will occur over time. Which statement below is likely to take the most time to cause damage?
A technician finds gears, shafts and bearings that are blue/black in color when disassembling a carrier. The most likely cause of this discoloration is:
When rebuilding a carrier assembly it is important to lightly draw file the flat mating surfaces to remove any bumps or burrs. What benefits are achieved by doing this?
If one or more rivets are found to be loose between a case half and a crown gear you should replace all the rivets or replace with a bolt set:
In the illustrations of gear tooth contact patterns, which pattern indicates that the pinion is in too far?
In the illustrations of gear tooth contact patterns, which pattern indicates that the pinion is too far out?
In the illustrations of gear tooth contact patterns, which pattern indicates that there is too little backlash?
In the illustrations of gear tooth contact patterns, which pattern indicates that there is too much backlash?
In the illustrations of gear tooth contact patterns, which pattern indicates a correct tooth contact?
In a full time four wheel drive vehicle, or a tandem drive axle truck what is found in the transfer case or power divider?
If a differential assembly is noisy only on turns, one of the causes might be:
To determine the pinion bearing pre-load:
Pinion to ring gear depth is increased or decreased by:
Two speed differentials use shift control devices mounted externally on the case, that use ____________________ to operate gear maneuvering devices internally in the differential, for speed changes.
In a single axle differential unit, the cross is driven by ______________ when the unit is under power.
Excessive differential noise only when coasting downhill, could be caused by:
Before you begin to take a final drive apart you should:
Misalignment of gears will generally cause:
One advantage to a final drive is:
The type of reduction which may be inboard or outboard is the:
Inboard planetary drives are easily serviced without requiring sprocket removal.
What drives the pinion gear on a hydrostatic type final drive?
An advantage of double reduction final drives over single reduction final drives is:
Excessive wear on crawler final drive bearings could be caused by:
In an inboard planetary final drive, the ring gear is the:
In a planetary final drive, the sun gear is the:
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