3.22 Auxiliary Drives
Power output of the engine via v-belts
At the engine, the output can be decreased by max. 10 kW via v-belts, if the available flange points are being used.
Versions available ex works:
- Power steering pump/steering booster pump, standard
optional:
- 2. Generator, 90 A (PR-No. 8HB)
- Refrigerant compressor (PR-No. 2AB), operative compressor installed in the vehicle, Sanden SD7 H 15 (non-controlled)
- Hydraulic pump as enclosed package (PR-No. 2BD) preparation for installation
At backfitting of a refrigerant compressor it is important to order the preparation refrigerant compressor (PR-No. 2AC). Otherwise you have to assemble the original parts. Differing parts can cause damages (for example, fracture of the clamping element).
Auxiliary drive of standard transmission
Actuation is realised via the countershaft of the transmission
Versions available ex works:
Module | PR-Number |
|
ZSB | Transmission without auxiliary drive, standard | 0R0 |
|
ZSB | Transmission with auxiliary drive Countershaft without flange | 0R1 |
|
ZSB | Transmission with auxiliary drive Countershaft with flange | 0R3 |
|
ZSB | Transmission with auxiliary drive Switch lock for transmission Countershaft without flange | 0R6 |
|
ZSB | Transmission with auxiliary drive Switch lock for transmission Countershaft with flange | 0R7 |
|
Power take-offs are not available for 2,5l diesel TDI(61kW).
The electronical engine speed govemor (PR-No. 6Y3, 6Y6) is only available for power take-offs (PR-No. 0R6, 0R7).
Notes: - The design of the auxiliary drive and the selection of the gear ratio depend on the power and speed (revolutions per minute) of the modules to be actuated.
- Transmission-dependent auxiliary drives may only be switched on/off with the vehicle standing still.
- Information on max. transmissible torques (Nm) of the individual auxiliary drives can be taken as guide values for shock-free and non-oscillating operation. According to DIN 922, the above specifications are based on a fatigue-limited gearing layout and a calculated service life of 500 hours. Additionally occurring inertia forces at the modules to be actuated are not considered.
- The gear ratio of the auxiliary drive has to be selected in such a way, that the minimum speed (engine), i. e. between 1,000 rpm and 1,200 rpm, is not exceeded if the auxiliary drive is loaded. The output decrease should lie within the range of the maximum engine torque.
- Exposed drive shafts, fan rotors or belt pulleys must be covered.
- It is not permitted to attach belts or chain drives to the drive shaft or flange of the auxiliary drive. However, if exceptions from the above specifications cannot be avoided, the appropriate drawings and data must be submitted for approval.
Dimensions - clutch flange - Auxiliary drive