To check the performance of the rotary motor, the amount of oil discharged from the rotary motor is measured when the upper rotary platform rotates.
1) pre test preparation.
A hydraulic oil temperature is (50 + 5) centigrade. Let the rotary motor rotate, heating the internal motor.
B allows the engine to stably extinguish and press the vent valve at the top of the hydraulic tank to release the remaining pressure.
C disassemble the rotary motor discharge hose at the end of the hydraulic tank (near the overload relief valve) and install the plug (ST6213) on the oil outlet which was opened in the hydraulic tank.
D selects the following switch positions:
Engine control dial: fast and slow car
E mode switch: OFF
HP mode switch: OFF
Mode selection switch: general use
Automatic slow car switch: OFF
2) the measurement of the oil discharge of the rotary motor.
The amount of oil discharge at the turn of the upper turning platform of a.
The bucket oil cylinder is completely retracted, the bucket oil cylinder is fully extended, lifting the moving arm, so that the bucket and the bucket link the pin shaft and the pin shaft at the lower end of the arm are at the same height. The bucket is an empty bucket.
2. Start the engine, push the revolving joystick to the full stroke position, and keep it. When the speed of rotation reaches a constant maximum speed, the oil discharge measurement begins. The measuring time should be above 45s.
In the two directions of left and right, repeated measurements were repeated at least 3 times, and the average value was taken.
The amount of oil discharge during the overflow of B rotary motor oil road.
(1) insert the bucket teeth deep into the ground. When the rotary joystick is in full travel position, the upper turning platform can not rotate.
Start the engine, push the revolving joystick to the full stroke position and keep it. When the oil begins to flow out from the end of the oil hose, the oil discharge measurement begins to be carried out, and the measurement time should be above 45s.
In the two directions of left and right, repeated measurements were repeated at least 3 times, and the average value was taken.
