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(9) "L" loaded "right-handed" pump, resulting in washed out skeleton Seal;

????Remedy: "right-handed" pump can not be installed on the "L" machine, otherwise washed out skeleton Seal;

????Cause: (10) hydraulic oil is too dirty.

????Remedy: cleaning systems, replacement of hydraulic oil.

????Cause: (11) pump filter is not blocked from the oil filter dirt effect

????Remedy: clean with clean oil filter to remove dirt.

????Cause: (12) oil shortage, oil position is too high, exposing the oil suction pipe:

????Remedy: Come to the oil standard position, reduce the suction position.

????Cause: (13) on both sides of the pump body and pump cover does not add paper pad; pump and pump cover is not perpendicular to the seal:

????Remedy: When the rotation of the intake air: join between pump and pump cover paper pad; pump with a diamond abrasive on the plate, so that the pump body and pump cover vertical error of not more than 0.005mm, pump and pump cover fastening links , without leakage.

????Cause: (14) pump drive shaft and motor coupling misalignment, with a twist of friction:

????Remedy: Adjust the concentricity of the pump and motor coupling so that the error does not exceed 0.2mm.

????Cause: (15) meshing precision gear pump is not enough:

????Remedy: to grind gears reach gear accuracy.

????Cause: (16) off the pump shaft seal skeleton, the body is not sealed:

????exclude

??High-pressure pump work function

????????Increase the fuel pressure, high-pressure injection, to achieve the best atomization, high-pressure pump is the power source for critical uses as jacks, upsetting head, a Zhahua, extruders and other hydraulic devices.

????????High-pressure pump installation sequence is as follows: During the installation of the high-pressure pump being, in order to avoid debris to fall into the machine, all units should cover the perforations. The unit on the basis of anchor bolts buried in between the base and the base, using a pair of wedge pad for correction. Correction shaft and motor shaft concentricity, on the road linking the outer shaft, the allowable deviation 0.1 mm; two coupling plane gap should ensure that 2 to 4 mm, (a small pump to take a small value) gap should be uniform, allowing difference 0.3 mm. After the connected piping and determine the motor direction of rotation, connect the coupling, and then check it again concentric aromatic shaft. After the actual test run the unit 2 to 3 hours, for a final check, if no adverse phenomenon, is considered qualified to install. In the commissioning process, check the bearing temperature and vibration are as follows: Loosen the coupling large, with a horizontal instrument were placed on the electric oil pump shaft and the base, by adjusting the wedge pad, correction unit level, tighten the bolt appropriate to Anti-around. In order to prevent pipeline debris into the pump, to the newly installed pipeline should be installed in the pump glue filter, the effective cross-section should be greater than 2 to 3 times the suction pipe section.

????Rupture painted "anaerobic" glue "epoxy" glue, "801" glue or "502" in a gum (glue length of about 2-3 times the length of the rupture site); with tape or canvas strip wound laminated type adhesive layer at 4-5 (each should be coated with glue); the wound tape at both ends of the draw canvas tied the knot; wait u