CHASSIS MODIFICATIONS 2-47 E UROCARGO Euro 4/5 The greater thickness of the pipe depends on the class and therefore on the torque that the original shaft has to transmit as well as on the construction formulation of the transmission line (torque, ratios in the drive line, load on the driving axle(s)). It is not possible to provide a general guideline on the thickness of the pipe. The thickness of the pipe must therefore be agreed upon each time, on the basis of the dimensions of the propeller shaft (e.g. dimen- sions of the cardan), with the authorized workshops of the propeller shaft manufacturers.
The minimum working length (between flanges) must be no less than 800 mm for the sliding shafts and 700 mm for the intermediate ones. 2.8.2 Determining driveshaft positions In the case of drive lines which consist of several shafts, the individual shafts must all be approximately of the same length. As a general rule, the difference in length between a non sliding and a splined shaft (see Figure 2.20) must not exceed 600 mm. The difference in length between the shafts must not be more than 400 mm. A margin of at least 25 mm must be left so that the sliding joint can travel when the splined shaft is closed.
When fully extended the shaft sliding sleeve should cover the splined stub for a length that should be about twice the diameter of the splined stub itself. When the required length of the drive line exceeds the permissible length, an additional driven shaft must be provided as illustrated in Figure 2.20. Figure 2.20 91451 1. Engine, clutch, gearbox axis - 2. Intermediate shaft (non sliding) - 3. Intermediate shaft support - 4. Propeller shaft with sliding end - 5. Inclination of rear axle case (static load) - 6. Inclination of rear axle case (max. compression) - 7. Inclination of rear axle case (unladen) - 8.
Intermediate shaft and axle case axis must have the same inclination Modifying the drive line Print 603.93.431 Base - January 2008