NDDan
Guest
likely switch on the side is not getting completely compressed at times. Have someone run the lever in cab. look on top of housing for the spool that moves up and down. Commom for dirt to build under it so spool don't go all the way back down. Also make sure the lever that hooks to cable is pivoting freely. lube up the bushings and lever in cab should snap down when everything is free to move. Good luck