(1) pump parts wear. Split-gear hydraulic system of pumps in use, the meshing of gears and bushings wear gear face wear contacts, bushings and pumps covered space increases, lost ring, at compression (also known as stress-relief tablets ) Internal and external high-pressure area of low pressure over the same area, or because of the aging of rubber, deformation and rupture, loss of separating high and low pressure of the sealed, so that oil will be reduced. Repair and replacement should be ring, the ring should be installed on the oil into the mouth here. brass ball valve Its bushings, gears should try not to demolition, so as to avoid the bushings location disorder, with the original damage.
(2) Circuit in the air. Hydraulic system into the joints or tubing connected to set loose, oil seal wear, the air is inhaled pumps, under pressure after reducing the volume, produce emulsion, the oil can not be promptly conveyed to the fuel tank, caused agricultural tools can not upgrade or improve slowly. Should be tightened to pipeline joints and screws was fixed. With special tools screw loose on the fuel tank of gas put a screwdriver, if necessary, replace the ring.
(3) oil spill. The fuel tank of the hydraulic system, or the self-styled joints of the ring road damage, oil spills have caused hydraulic lower. Should be replaced or self-styled ring joints.
5. Distributor oil return valve closed lax. Distributor of valves and valve seats to the oil-stained with impurities, flexibility weakened spring, will return to the oil valve overhead, closing lax, or caused to oil in the Inner sliding valve is not flexible or even get stuck, unable to close Two oil return, the oil brass ball valve pressure lowering, farm tools can not upgrade. Xiao Mu hammer can be used in the valve seat on the gently percussion, to fall back to the oil shock valve or valves will be removed to clean the oil, such as the cone with a worn trench should be lapping the repair or replacement of new products.
6. Low pressure relief valve to open. Distributor on the safety valve connected with the oil-return valves, pressure valve when more than 130-135 kg/cm2, the safety valve will automatically open, return to the oil tank. Such as the safety valve spring force weakened, valve wear, the pressure to open lower, less than 100 kg/cm2, the tools it will be difficult to rise, should be adjusted. Removing the first adjustment cap safety valve cover, screw-locking nut, and then use screwdriver into the screw adjustment screw (each screw 1 / 2 laps), until the qualified so far. When the safety valve spring added to 12.2-13.2 kg/cm2 pressure, its length should be not less than 32 mm, or they should be replaced new.
7. Piston ring damage to the fuel tank. When the piston ring fuel tank damaged a fuel tank leakage, lack of pressure, should be the repair or replacement of new products.
8. Valve positioning card death. If the fuel tank on the pole location valve was pushed to withstand the activities of block and died in the valve seat on the cards, the fuel tank of space, the oil was cut off (or open), the tanks can not be on the Pistons Shift. At this point should block the location of activities to move up and make it targeted valve between the left and 15 mm of space, and then manipulated to push handle "up" brass ball valve position and hand-carry the tools, you can upgrade easily. brass ball valve |
