In Reply to: Oil levels posted by Gary Ostby on June 08, 2017 at 10:25:51:
The hyd dipstick checks the hydraulic oil level only, in the hyd system on a 641. A check plug on the right side of the transmission, towards the rear. just under the step,that checks the transmission oil level. There is also a check plug for the differential at the rear of the tractor on the left axle housing.