In Reply to: 4cyl. Ford 2000 with sos. Question posted by Wayne N Ind. on April 24, 2018 at 05:10:25:
Hello Wayne. Yes you can disengage the transmission and should anytime you have to run the engine without being in the seat. Are you familiar with the procedure of disengaging the Traction Coupling ? It is located on the left side of the rear axle housing, on the round cover where the PTO shift lever is on a 4 or 5 speed tractor. It is a S shaped strap that locates and locks the shaft that rotates to shift the traction coupling from engaged to disengaged. The Ford Tractor Shop Manual has illustrations showing the procedure. Most all of the diagnostic and adjustment procedures are carried out with the coupling disengaged as well. Make sure the transmission fluid is at the proper level. It is very critical that the Red Lube Warning light located under the Throttle lever is functional. Its main function is to warn of Low Lubrication Oil Pressure of the transmission. Just like low Engine oil pressure, the trans will self destruct without adequate internal Oiling at any engine speed. The Lube Light is also used in diagnosis of transmission problems. I always caution SOS owners to please make certain the Starter Safety Switch is functional so the starter will not engage unless the Shifter is in Park position. A disabled Safety switch is dangerous on ANY tractor, but more so on a SOS due to its lower gear ratios that amplify pulling AND pushing power, and the higher gear ratios that increase the speed of the tractor making it virtually Unstoppable in Low gears and lighting fast in the high gears. HTH. SoS.