excavator

I have a Sheppard 492 s 5 steering box that I removed because seal behind pitman arm is leaking.

My local parts supplier sent it to a re builder and after a week they are having problems locating seals for the

Job 

Any one here have source for a sheepard 492 box?

sounds like your way worked well all those years and cant ind the SPECIAL wrench any way

this is the tool book shows to loosen lock nut and back off screw before adjusting yoke adjuster screw

Hi guys, I have a 1986 Mack RD dump that I just picked up and I am looking at my Mack book on how to adjust the dynatard 4 valve engine. I have no problem following the instructions other than is it required to use the SPECIAL tool as shown in book to loosen the lock nut on the hydraulic side. The tool is not available and I don't believe it is a must have. Book explaind to use special tool to loosen locknut and back out adjuster then using feeler gauge on yoke side adjust the yoke while holding pressure down using .010 feeler. Seems like the tool is not required. I have adjusted many 2 valve mack engines with dynatard cam but this is first 4 valve

Hey thanks for pic

Mine looks just like the pic however the switch that was in there was not hooked up and is only 2 position. I will get a 3 position and see how that does. Do you know how many wires plug into 3 position switch in that pic

Ok thanks. I can get ac to work but I just don't know if it is right way. May not matter much as long as it works

Hey thanks. The rocker switch is only 2 position and might be the wrong one. Does anyone know if it has 3 position as heat max ac and ac

Hi guys

I just picked up another old Mack a 1986 RD tandem dump.

It has the 3 round style vent holes in air heater box and a single rocker switch in middle that was not hooked up to wires in rear of box. When I try plugging in wires I can get the ac to work but I also see the center cab vent outside of cab opens and I am trying to figure out how or why it opens and if it should. The outside vent on old r model has manual knob to crank open. This one has air line to it with electric switch also

thanks for reply

I had many mack tandems but this R685t single axle I have needs gear oil fill and I don't have proper instructions. The lower rear as fill plug but the top has 1 fill plug on top and I need to know how much to add.

Any help would be great

Had to post this

Thanks, now I just need a new air cleaner with the 2 outlets and some piping to the turbo and tip turbine

thanks guys, did it today and installed new o-ring on pick up and new gasket on cover and pan gasket and everything worked great

Anyone know about the e6 engines that were in a RM model? I just bought a nice e6 that was in a RM model that I am installing in a R Model and they had oil pan sump in front to clear 4x4 axle. My thinking as I am looking at this is that the oil pan can be reversed and I will pull the pan today to find out and then I woill have to check to see if the oil pump pick up tube can also be mounted on the other side of the pump. I figure some one might have some info on the front sump setups.

thanks Jim