赫格隆马达测试方法翻译：马明东

TEST PROCEDURE FOR REPAIRED MARATHON MOTORS-修理马拉松液压马达试验程序 Scope-范围 This technical description (TD) is valid for repaired Marathon hydraulic motors. 本技术说明（TD）适用于维修后的下列型号马拉松液压马达。 MA 141. MA 200.MB 283.MB 400.MB 566.MB 800 MB 1150.MB 1600. MB 2400.MB 3200.MB 4000 2Purpose-目的 To make sure that the object meet defined demands on leakage, has normal noise level and in total is representative for the type of motor. 为确保对象满足规定的泄漏要求，具有正常的噪音水平，总共代表该类型马达类型。 Measured leakage values can not be used as a value on how much the motor is going to leak in a particular application, depending on short time of testing (not fully tempered motor) and testing (all pistons are under high pressure). 测量到的泄漏值不能用作特定应用程序中作为马达泄漏量的值， 要在一个特定的应用程序中 泄漏这取决于短时间的测试时间， （未完全调节的马达） ，和测试方法（所有活塞都处于高压 下） 。 3Testing -测试方法 3.1 Hydraulic oil-液压油 壳牌 Korrhydraul S68（添加剂，2% VSI，防锈）- 粘度 68 + 6,8 cSt at 40o C（对应于 t = 51,9o 时的 40 cStC） 。- 根据 ISO/DIS 4406，污染等级为 16/13。 3.1.1Check of oil-油的检查 Demand for cleanness is valid for of oil to the main connection and to the motor case. The sample shall be taken close to the motor and immediately after the test cycle. Check of oil shall be pered four times a year. 清洁要求适用于将油输入到主连接和马达外壳。 样品应靠近马达和测试周期后立即。每年 进行四次油品检查 检查盖： 。颗粒计数。粘度。-含水量 3.2 Hydraulic set up-液压装置 All pistons is under the same high pressure, which makes it possible to test the motors one by one. 所有活塞都处于相同的高压下，这使得测试方法成为可能马达内的柱塞一个接一个地转动。 Principal circuit, see page 11. The high pressure P3 is to be adjusted with a variable pressure relief valve item 1. - Hydraulic circuit for test stand according to page 11. 液压回路， 见第 11页。 高压 P3 将通过可变减压阀项目1 进行调整。 -根据第 11页的规定， 提供试验台的液压回路。 3.3 Mechanical set up-机械设置 The motor is tested with it s hole shaft in horizontal position. It is not necessary to fasten the motor as it not create any torque. 测试马达时，马达的孔轴应处于水平位置。没有必要固定马达，因为它不会产生任何扭矩。 3.4 Measuring of axial clearance-轴向游隙的测量 Axial clearance shall be measured and entered to the test report, after the test. Axial clearance that not is within the value given in the assembly instruction should be adjusted. 试验结束后应当再测量一次轴向间隙， 并把测量轴向间隙量将其输入到测试报告中， 轴向间 隙不在装配表中给出的标准值范围内应该按照标准值进行调整。 要达到配流间隙值范围内的 轴向间隙。 3.5 Maximum allowed pressure-最大允许压力 As all pistons are under high pressure the spherical axial bearing is loaded with twice the force, compared to what it is in a normal motor application. There fore maximum allowed testing pressure is limited to 360 bar.。 由于所有活塞都处于高压下，球面轴向轴承被加载与马达在正常工作中所应用时的力相比， 力是其两倍。因此最大允许测试压力限制为 360 bar。 3.6 Test cycle-试验循环-测试周期 a) Fill up of the motor case, see 4.1 b) Start up and warm up 1, see 4.2.1 c) Warm up 2, see 4.2.2 d) Leakage measuring, test 1, see 4.3.1 e) Leakage measuring, test 2, see 4.3.2 f) ing of motor case, see 4.4 a)加注马达壳油量，见4.1b）启动和预热1，见 4.2.1c）预热 2，见 4.2.2d）泄漏测量、试 验 1，见 4.3.1e）泄漏测量、试验 2，见 4.3.2f）电机箱冲洗，见 4.4 3.7 Accepted leakage value-可接受的泄漏值见第 10 页。 3.8 Conditions for approved testing-经批准的测试条件 The motor shall be tempered to the ambient temperature (+20o C). That