Ford Manual/The Ford Model T One Ton Truck

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The Ford Model T One Ton Truck

Do the Instructions relative to the Car apply to the Truck? Answer No. 112


The answers pertaining to the car are applicable to the truck, with the exception of Nos. 79, 80 and 81.

How are the Rear Axle and Differential disassembled? Answer No. 113


With the universal joint disconnected, remove the bolt in front end of radius rods and the cap screws which hold the drive shaft tube to the rear axle housing. Then remove the rear axle housing cap; also the bolts which hold the two halves of the differential housing together. With the differential exposed to view, the manner of disassembling it will be apparent. Care must be exercised to get every part back in its correct position when reassembling, being sure to use new paper liners.

How is the Worm removed? Answer No. 114


To remove the worm, drive out the pins which hold the coupling to the worm and drive shaft. Then remove the felt washer, roller bearing sleeve, and roller bearing by slipping them over the coupling. Drive the coupling off from the drive shaft and then force the worm from the coupling. Removing the worm nut will permit the removal of the retaining washer, thrust bearing and rear worm roller bearing. In reassembling be sure that the pin which holds the retaining washer stationary is in place.

How is the Differential Gear removed from the Shaft? Answer No. 115


The differential gear is fastened to the inner end of the rear axle shaft by means of splines, and is held in position by a ring which is in two halves and fits in a groove in the rear axle shaft. To remove the gear, force it down on the shaft, that is, away from the end to which it is fastened, drive out the two halves of the ring in groove in shaft with screw-driver or chisel, and force the gear off the end of the shaft.

What about Lubricating the Rear Axle? Answer No. 116


Extreme care must be used in lubricating the differential. An A-1 heavy fluid or semi-fluid oil, such as Mobiloil C or Whittemore's Worm Gear Protective, should be used and carried at a level with the upper oil plug. The differential is supplied with the required amount of lubricant when the truck leaves the factory and the supply should be maintained by replenishments as required. After running the truck about 500 miles, the oil should be drained off by removing the lower oil plug, and the differential filled with fresh lubricant. This operation should be repeated at approximately 1000 miles, and after that whenever necessary. The rear axle outer roller bearings are lubricated by means of dope cups. These cups should be kept filled with a good grade of grease and given a full turn every 100 miles. Before putting the truck back in service after the rear axle has been taken down, fill the differential with oil, jack up the axle and run it for five or ten minutes to insure proper lubrication of all bearings.
 
Ford model t 1919 d051 truck rear axle longitudinal view.png

Truck Rear Axle — Longitudinal View. (Cut No. 20)

 
Ford model t 1919 d052 truck rear axle cross section.png

Truck Rear Axle — Cross Section showing Worm and Worm Gear. (Cut No. 21)

 
Ford model t 1919 d053 starter and generator units.png

Starter and Generator Units. (Cut No. 22)