Truck rear hubs AA-1113-F2 and AA 1114-F2 are now being used in 100% production. In these hubs the bearing sleeve is made integral with the hub. This construction eliminates the AA-1236-C rear hub sleeve and the A-23225 sleeve retainer rivet. The AA-1113-F2 and AA-1114-F2 hubs can be used interchangeably with the AA-1113-Fl and AA-1114-Fl hubs …
A new short fiber sodium soap grease having a high melting point is now being used in production in all front wheel bearings. This front wheel bearing lubricant has been carefully checked and tested under severe operating conditions and has proved unusually efficient. Under no circumstances should it be removed from new cars and other …
If excessive force is applied when tightening the lower wheel nut on the rear tire carrier, it may damage the threads on the check nut A-21846-S- 7, causing the stud to come out when removing the wheel nut. To prevent this condition, a lockwasher A-22330 acting as a spacer is now assembled behind the check …
To still further increase the strength of the AA-1015-C truck disc wheel, a reinforcing bead has been placed around the outside of the hub bolt holes (see Fig. 1145). AA-1123-R adapter plate is not designed for use with the new wheels. The increased strength of these wheels eliminates the necessity of installing the adapter when …
On a few of the early 1930 single rear wheel AA trucks, a scalloped design hub was used- (See Fig. 1082.) A few instances have been brought to our attention where single rear wheel trucks equipped with this scalloped hub were constantly operated under excessive loads and the heavy strain damaged the wheels. We have …
Changes have been made int he A-1379-B and A-1380-B wheel carrier assemblies which considerably strengthen these parts. The thickness of the body flange, also the lower part of the wheel flange has been changed from 4/16” to 1/4” and a solid boss added. (See Figs. 1023 and 1024.) To compensate for the change in design …
Never bolt a spare wheel to a side wheel carrier without first making certain that the wheel is seated all the way down in the fender well. If the spare wheel is not all the way down in the fender well, vibration or an annoying rattle often develops. The position of the wheel in the …
Spare Wheel Must Be All the Way Down in Fender Well Read More »
One or two instances have been brought to our attention where difficulty was experienced in removing spare wheel from side carrier. In checking this it was found that a right hand flange or plate had been assembled on the left side of the car and vice versa. When this is done due to the angle …
SPARE WHEEL CARRIER FLANGES MUST BE CORRECTLY INSTALLED Read More »
The spare wheel guard A-17806 is chromium plated. It has black enameled brackets and is attached between the ends of the rear fender guards as shown in Fig. 937. The list price of the spare wheel guard, complete with necessary parts for installation, is $2.25.
Care must be taken in mounting tires on the rims of the Model “AA” Truck to see that the double angle valve is properly located before inflating tire. Figs. 904 and 905 illustrate the correct and incorrect position of the double angle valve. It is evident that a tire inflated with a valve in the …
MODEL “AA” 11⁄2-TON TRUCK DOUBLE ANGLE VALVE EQUIPMENT Read More »
A few complaints have been received of truck disc wheels (AA-1015-C) cracking when operated over heavy roads having deep ruts. Investigation of these complaints dearly proved that the trouble was not with the wheels but in the manner in which the wheels had been installed. For example, instances were found where drivers had failed to …
The truck hub boltsAA-1107-BR, 1108-BR, 1118-AR and 1119-AR have been redesigned and considerably strengthened. This has been accomplished by changing the length of the shoulder and removing the undercut or tapered groove at the end of the shoulder. Any stock of old style bolts you have on hand should be returned to your Branch for …
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