WQ Hans

 This week I learned about testing the pop off pressure and spray pattern of two different sets of ford 5000 tractor injectors. I also tested to see if and of the injectors were leaking fuel and the fuel pressure drain back time. The pop off test you just pump the handle on the tester until it builds enough pressure to fire the injectors, in this case it was 2700 psi.

 

WQ Hans

 This week I learned about the parts and operation of an Eaton Fuller RT-910 transmission.

R = roadrannger

T = twin countershaft

9 = torque the transmission can handle x100

10 = number of forward gears.

 

The RT-910 has a 5 speed main gear box and a 2 speed high/low range. This transmission has a 14" clutch and uses a 1 3/4" input shaft. The RT-910 can also be changed to a RTO-910, which is a overdrive transmission, by disassembling the front gear half and changing around some of the gears in the gear box.

 

Main shaft in the center of the transmission. One countershaft on each side of the main shaft.

 

 

This is the air inlet for the transmission. It has an air pressure regulator which limits air pressure to 57-62 psi and an air filter which should be disassembled and cleaned every oil change.

 

Air valve. The air valve directs air flow to the range shift cylinder for the high/low range. It is controlled by the control valve on the gear selector.

 

 

Control valve . Controls the air flow to the air valve for high/low range

 

 

shift cylinder. Uses a piston to move a shift fork back and forth for the high/low range. The piston is controlled by air pressure and uses an o-ring to seal it

 

                                            

 

High/low range shift fork in the rear gear case half

 

  

WQ Hans

 This week I disassembled a ford 5000 engine to inspect it, rering it and put it all back together. I also learned how to use a dial bore gauge to make sure that this engine never had an over bore done to it or anything. At first I was told that this was an early production 4.2" bore 5000 engine, but after measuring the bores and looking at the head gasket I discovered that it was actually a later production 4.4 bore 5000 engine.

 

 

 

 

 

 

 

  

 

  

After looking at some of the intake valves I noticed that one of the intake valve retainers looked different than the rest of them. In the picture the one on the right is the retainer that's different, the top doesn't have the curve to it that the other one has.

 

On the left is the valve keeper that's different from the bottom side compared to what the other ones looked like. 

  

WQ Hans

This week I finished up a Hendrickson Walking beam rebush job on an international truck. There was a lot to this project since the axles had to be disconnected from the truck. This was a whole new experience for me since I have never had a set of axles off  a truck and since I'm pretty sure none of the suspension has been off this truck since it was built in 1987 everything would be the much more rusted together. I would say for the most part it all come apart a lot easier than I expected, except for the beam end caps on the front axle which were a real pain in the ads to get out.

 

 

Frame of the truck on jack stands

 

removing tires and brakes

 

 

saddle caps unbolted

 

Saddle caps unfolded, getting ready to unbolt beams from axles and remove end caps

 

 

beams disconnected from the truck and on the ground. The axles are supported by jack stand, drivelines and torque rods are still in place

 

 

end caps after removal. All end caps and bolts will be replaced

 

 

worn out leaf spring pin and bushing

 

 

old leaf spring pins and bushings

 

 

New bushings installed in leaf springs

 

 

beams back from getting bushings pressed in and going on the truck

 

 

end caps installed. New grade 8 bolts will be torqued to 240 Ft/lbs with the axles in position

 

 

beams connected to axle. The center beam is getting lifted up to the truck and the saddle caps are getting installed. Saddle caps get torqued to 250 Ft/lbs with the truck on the ground and the axles in position.

 

 

beams installed and truck on the ground. All lifting for this for this project was done with a 12 ton bottle jack and then the addition of a 6 ton near the end, used to align the axles side to side