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grinny
05-03-2001 20:19:28
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Re: Hough Payloader- torque converter in reply to Jerry, 05-01-2001 16:04:27
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Not an expert on this by any stretch of the imagination, but no you cannot replace TC with a solid driveline. Although when you stand next to the machine with the engine running, and the driveshaft to the trans is turning, this only tells me that none of the clutch packs in trans are applied,and the internal gears are turning, but no power is applied to wheels. I would put someone else in the cab, have them put it in gear with the brake on, this should stop the driveshaft to trans. As torque is applied,(engine revved up) the convertor should force fluid against a ring of vanes within itself which are connected to the driveshaft. With trans in gear a valve should divert hyd pressure internally to a clutch pack, forcing the discs to be clamped to a driven element, similar to pressure plate/clutch arrangement. If driveshaft to trans does not stop when trans is shifted in gear, (forward OR reverse) with brake on, then there is either no pressure available to apply clutch packs, or there is something mechanical broken in trans, (clutches, gears, etc.) A solid shaft will not work as you can see now because the TC is a slip coupling that will engage or apply torque as a function of rpm and load. A solid shaft would cause the engine to stall when internal clutch packs were applied by hyd pressure, unless you had machine coasting when you put it in gear. To make a long story short, check application pressure available to trans. I have been around a hough h60b and this unit has a pump I believe on lower area of torque convertor that supplies the pressure necessary to apply (engage) the clutch packs. Should be various places to pressure check each drive position, But I would guess that if machine does not move at all, the pump is probably bad. Oh yeah, don't forget that transmission must be full of oil to work properly as the trans oil is pumped into the TC to make it work too. This will probably either help you or confuse the b'jeepers out of you. good luck. Don't hesitate to e mail with more questions.
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