They don't "slip" anything when the accumulators are low.
When there is insufficient oil left to make up or down shifts the flow sensor spool drops down and disengages the Master Clutch until pressure is built in all three transmission clutch circuits then M/C pressure will be available again. This can happen during multiple quick shifts, up or down, even if the accumulators are fully charged.
This feature is the main reason the Magnum transmissions survive as well as they do.
Charging the accumulators is a routine maintenance item, low charge is not indicative of an internal transmission problem in any way.
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Today's Featured Article - Some People Like Red - by Art Willis. I was smitten, as a little boy, by red tractors. I used to play in the coastal sand of my Dad & Mom's home with little red tractors, trucks and cars. I grew up believing that like fire trucks, ALL tractors are supposed to be red! Today, the only way I would drive a John Deere is if someone would paint it RED! Driving a Tractor for the first time - About 19 years ago, when my wife Donna and I moved to what was the country then, I was given access to a large Farmall tractor by a wi
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