Test bench features: 1) The main shaft adopts the frequency conversion to regulate speed, with the range of 0-4,000rpm 2) The oil-measuring counting and rotation speed of main shaft is indicated by 4 digits, 10 sets of preset system of rotation speed 3) DC power of 12V/24V, the structure is compact and steady 4) The shell is sprayed with the static electronics, elegant and fertile 5) The oil-collecting tank can rotate left-right, and can be lift or lowered 6) The test bench is equipped with emergency stop switch 7) It adopts the frequency converter of high performance and reliability 8) It has the protect of lack-voltage, over-voltage, overheat, and overload, Ultra-low noises Functions: 1) Checking of the mechanical speed regulators, checking of the electromagnetic valve of distribution pump 2) Measurement of the reflux delivery of distribution pump, the test and adjustment of distribution pump 3) Measurement of interior pressure of distribution pump, checking of the vacuum capacity regulators, Advance angle measurement 4) Checking of the sealing of injection pump, Self-suction joint, Printer (optional), Data-base (optional), Measure rack bar travel (optional) 5) Measurement of the delivery at various rotation speed, checking of beginning and interval angle of the pump 6) Checking of the pneumatic speed regulators, checking of the pressure compensators (LDA)