Reasons for the low gear shift oil pressure of mini front end loader-2(2) The pressure in the first gear and the reverse gear is normal, but the pressure in the second gear is low. The main reason is that the rotating oil seal at the joint between the shaft end of the second gear assembly and the gearbox end cover is damaged, or the oil seal at the joint surface between the end cover and the box body is damaged. The piston seal in the second gear clutch is damaged. The second gear should be disassembled, the rotating oil seal and related seals should be overhauled, and replaced if necessary.
(3) The pressure in the reverse gear and the second gear is normal, but the pressure in the first gear is low. This is because the seal ring at the junction of the first gear clutch assembly and the transmission body are damaged, or the piston seal (piston ring) in the first gear clutch of the transmission is damaged. Check whether the oil seal at the connection between the first gear clutch and the housing is damaged. And remove the 1st gear clutch cylinder, and replace the sealing ring if necessary.