Re: Shibaura D28F
Well, to load the tires yourself, you'll need:
Jack (get the tires off the surface), put the jack under the bracket the drawbar goes through.
Jackstands, one under each side of the rear axle.
Air/liquid tire gage, try your local tractor dealer or NAPA
Liquid (of course), what do you plan to use? CaCl or windshield washer fluid?
Air/Liquid adapter for your valve stems (NAPA or your local dealer)
Valve core tool (removes the valve cores so you can pump the liquid in...also NAPA or yr dealer)
Low pressure pump (the ones that go in a drill chuck are cheapest and portable)
Jack the tractor
Place Jackstands under the rear axle, lower the jack enough that the axle rests on the jackstands. The rear tires should be an inch or a bit off the surface.
Rotate one of the tires so the valve stem is at the 10:00 O'Clock position.
Using the Valve Core tool, bleed out most of the pressure in the tire before removing the valve core.
Remove the valve core (just unscrews from the stem). The tire will deflate. Strongly suggest you wear eye protection as the cores do fly (even if you've let most the pressure out). It's worth while buying a pack of valve cores too, by the way. They're cheap...and if one does fly, you won't lose an hour trying to find it. Extra cores are a good thing to have on hand, anyway....so are some extra valve caps
Thread the Air/Liquid adapter on to the valve stem.
Rig the pump to a short hose (on the intake side) and a hose to the pressure side (I had to make one of these up from an old hose...)
Start pumping. Pump right from the liquid container or use a bucket. There's a bleeder on the air/liquid adapter...you'll need to bleed air out of the tire occasionally as the liquid displaces the air. About every 30-60 seconds worked for me...I bleed more frequently as the tire fills with liquid.
In a while, depending on how much liquid you need (don't fill beyond ~75% (i.e. the 10:00 positioning of the valve stem)), you'll get a solid stream of liquid. That's the indicator that you've completed that tire.
Go to the other tire and repeat the process.
If you want CaCl, you ought to take the tires to a dealer (have help when you retrieve them...they'll be pretty heavy) since that stuff is pretty corrosive and kills any vegetation it contacts. If you do use it, make sure you flush any spills with plenty of water.
Took me about an hour per tire. I pumped about 11 gallons per side. The drill pumps are cheap, but low volume, so it takes a while.