Hi
How does the TA work on the 454 series tractors?
I know there are 2 clutches, a plate clutch and a sprag clutch and an oil pump to provide operating pressure but that's about it.
Does the plate clutch engaged give high drive and when disengaged allows the sprag clutch to give low drive?
Does the oil pressure applied via the operating valve and pump engage the plate clutch - if so what holds the transmission with the engine off?
Or have I got it wrong? If so how does it give high drive
Reason for asking - occasional slipping in high speed.
Are there available repair instructions I have the 454 manual but there is nothing about the TA. Down load would be useful as I would rather not buy another manual just to repair the TA.
How does the TA work on the 454 series tractors?
I know there are 2 clutches, a plate clutch and a sprag clutch and an oil pump to provide operating pressure but that's about it.
Does the plate clutch engaged give high drive and when disengaged allows the sprag clutch to give low drive?
Does the oil pressure applied via the operating valve and pump engage the plate clutch - if so what holds the transmission with the engine off?
Or have I got it wrong? If so how does it give high drive
Reason for asking - occasional slipping in high speed.
Are there available repair instructions I have the 454 manual but there is nothing about the TA. Down load would be useful as I would rather not buy another manual just to repair the TA.