I can ignore it no longer. While my trusty 52 TEA20 would push and pull snow around in the depths of a frigid winter for hours at 20psi, in the warm weather she has been slowly sinking. In the past, upon starting the gauge would be pinned at a max reading of 60 psi for about five minutes, then would start to fall, usually landing between 15 and 20. Now in the heat (like this last weekend while grading a steep gravel drive in the blazing sun) she's leveling off at a new low of 8 psi while working.
Thinking perhaps the incline had something to do with it this last outing I ran her a few kilometers to the dump and back on flat dirt roads but she never rose above 10 psi in any gear at any throttle setting. Oil for both winter and summer is 30 weight.
First question is: what's the acceptable pressure range for this tractor before one should get concerned?
Second (and third) question is: If 8 psi is indeed too low, where would one start looking for the culprit? Is the oil pump a serviceable unit or do you have to chuck it?
Thinking perhaps the incline had something to do with it this last outing I ran her a few kilometers to the dump and back on flat dirt roads but she never rose above 10 psi in any gear at any throttle setting. Oil for both winter and summer is 30 weight.
First question is: what's the acceptable pressure range for this tractor before one should get concerned?
Second (and third) question is: If 8 psi is indeed too low, where would one start looking for the culprit? Is the oil pump a serviceable unit or do you have to chuck it?