best way to charge is by weight, buy electronic scale, buy mainfold gage setup, buy freon in 30# jug, hang gages somewheres for evacuating and charging. Leave them there don't move till completely done. After evacuating and it holds, hook up freon jug to gage manifold(yellow), open jug valve crack line to jug at manifold to let residual air out. Now, theres a zero scale button on scale set it to"0". slowly open low(blue) pressure manifold vale connected to A/C low pressure port. then take you hands off of manifold setup, let freon go in till it won't anymore. Now start tractor turn on A/c and turn it to High/ and fan to high. Watch scale till it shows measured amout you want in A/c. turn off low pressure valve(blue) on Manifold gage FIRST, then turn off freon jug, and unhook it from manifold gage(yellow} put line off jug back on gage open port. Your system should be cooling well. If not, then theres a restriction somewhers in system. if it on high side after compressor but before before orfice tube/exspansion valve and the high pressure cut out switch for compressor isn't working you will hammer the compressor(extremely high pressure). if restrictions past orfice tube/exspansion valve, it will just remain as a gas., won't have compressor suction(low suction) of gas to change back to a liquid.
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Today's Featured Article - Earthmaster Project Progress Just a little update on my Earthmaster......it's back from the dead! I pulled the head, and soaked the stuck valves with mystery oil overnight, re-installed the head, and bingo, the compression returned. But alas, my carb foiled me again, it would fire a second then flood out. After numerous dead ends for a replacement carb, I went to work fixing mine.I soldered new floats on the float arm, they came from an old motorcycle carb, replaced the packing on the throttle shaft with o-rings, cut new ga
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