axial_al Posted August 11, 2006 Share Posted August 11, 2006 The clutch pedal on our 8920 no longer comes all the way back up. You have to put your toe under it for the last half inch or so. I'm thinking this could cause clutch slippage. Tried to see where it goes under the cab, but the auxiliary fuel tank is in the way. Thanks in advance for any advice from you magnum mechanics. Link to comment Share on other sites More sharing options...
Maynard Posted August 11, 2006 Share Posted August 11, 2006 The clutch pedal on our 8920 no longer comes all the way back up. You have to put your toe under it for the last half inch or so. I'm thinking this could cause clutch slippage. Tried to see where it goes under the cab, but the auxiliary fuel tank is in the way. Thanks in advance for any advice from you magnum mechanics. The clutch cable attaches to the top of the transmission control valve, behind the batteries, just to the rear of the left front cab mount. Don't be surpised if the adjustment sleeve is frozen to the cable. A little heat will usually break it loose if stuck. Some of the time the cab needs to be raised slightly to allow the cable end to pass through a narrow spot. Adjust the cable so that the pin in the clutch pedal end of the cable goes tight when the clutch pedal is against the lower stop. Jim N. Link to comment Share on other sites More sharing options...
axial_al Posted August 12, 2006 Author Share Posted August 12, 2006 Thanks Maynard. Link to comment Share on other sites More sharing options...
trctrmn Posted August 12, 2006 Share Posted August 12, 2006 The clutch pedal on our 8920 no longer comes all the way back up. You have to put your toe under it for the last half inch or so. I'm thinking this could cause clutch slippage. Tried to see where it goes under the cab, but the auxiliary fuel tank is in the way. Thanks in advance for any advice from you magnum mechanics. I agree with everything said here. The one thing that is important is that when the pedal is at the end of its travel the spool must be at the end of its travel. The "clutch" valve is a two piece valve in that there is a bottom half that is used for feathering the clutch when the transmission is shifted and you don't have your foot on the pedal, and top half that is more or less a dump valve when the pedal is puched all the way down. The real way to tell if the valve is working properly is to remove the tube that supplies oil from the TCV to the master clutch, cap both ends and install a 500 psi guage in the Master Clutch test port. When this is done you can see this valve work, and you won't run over yourself. If the valve is sticking from wear or contamination then you will see it work on the guage. You will also see the pressure move up and down when you shift the tractor through the gears. The Master Clutch is tough, but it does need all of the pressure that it is intended to recieve to live. Link to comment Share on other sites More sharing options...
farmall Posted August 13, 2006 Share Posted August 13, 2006 only cap the tcv fiting leave the clutch line drain in a bucket. if you cap the clutch line the lube oil will apply the clutch. the tractor can move. Link to comment Share on other sites More sharing options...
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