Re: Changing hydraulic oil in 460

Posted by Al L. in Wisc. on December 28, 2010 at 09:04:32 from (216.226.94.173):

In Reply to: Changing hydraulic oil in 460 posted by Rich_WI on December 28, 2010 at 00:10:17:

Per the McCormick Farmall 460 Operators Manual: capacities

- Transmission and differential case (also reservoir for Hydra-Touch system) Approx. 10 gal.

...keep the lubricant up to the level of the cap screw opening in the hex head plug.

- Independent power take-off housing 2 qt.

Drain the rear unit and replace with approved lubricant each time the transmission oil is changed. Remove the drain plug, filler cap/vent plug and bushing and the level plug...refill to the height of the level plug.

Per the Preventive Maintenance Manual:

Clean the breather cap every 250 hours of operation...or more under...dirty conditions...wash in kerosene, dip in engine lubricating oil and replace after wiping off excess oil.

To drain the fluid from the pump and connecting tubes pull out the cable from the center socket on the distributor cap, turn the ignition key clockwise and press the electric starter button, turning the engine over very briefly.

FREEING THE SYSTEM OF TRAPPED AIR

Start the tractor engine and operate it at a moderate idle speed. With the filler plug or cover removed, slowly move the control handle or handles back and forth ten or twelve times through their full range of travel. This frees the system of trapped air. Then with the handles in the neutral position, stop the engine. If necessary add fluid up to the proper level in the transmission case, as instructed in the tractor Operators Manual.

Now my words:

There are three drain plugs. The large one you removed; the second, a forward facing plug - square headed - just behind the torque tube mating seam and the third is a recessed head plug on the underside of a sloping plate that runs crosswise to the tractor. This v-sloping plate is mounted using eight bolts; just pull this plug.

My first experience draining hytran fluid was on a sub-zero day in an unheated garage. You were smart and had enough oil pans (or a large one) nearby when you pulled that large plug first. Ok, now you know what happened to me; it was on my Farmall 340. I also had so much ice in the filter housing and in the v-shaped housing I had to get me some warmth in order to drain the system. As one older posted stated "...I could have made high-balls to drink with all that ice.

I'm hoping for continued cold and not this 40+ temps w/drizzle, rain and fog and it will reek havoc with our planned ski jumping tournament and cross-country ski race on Sunday, near Westby, Wisc. Ohhh so many hours of work and if this stuff comes in from the west...

Rick, what part of the Badger State. Good luck w/your project. Is it a Farmall or International?

On Wisconsin!

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