Vaderstad RAPID RD F Series, Инструкция по эксплуатации

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RD 300-450 F
Ver.1.3 07/06/01 43
3.15.3 Hydraulic fan "Fenix", Mfg. No. 10 159-10 259
Figure 3.37
The air quantity is regulated by the fan rev counter which is set using the rev counter regulator (A)
on the fan support. On tractors with a constant pressure hydraulic system, the regulator (A) is set
to its highest value and the fan rev speed is then adjusted using the flow valve on the hydraulic
system of the tractor..
Press button 18 and the fan rev speed is displayed on the Control Box.
The fan alarm in the Control Box has factory settings of a min. speed of 3800 rpm and a max.
speed of 4800 rpm. These can be altered in the Control Box, see ”3.16.3 Programming the Type
III Control Box” on page 54.
Warm up the hydraulic system before running the fan on full, 10 minutes for most tractors.
Under NO circumstances should the fan should be run on full when the hydraulic oil is cold.
This builds a high return oil pressure which can damage the axle bearings of the hydraulic motor.
The return pressure must not exceed 15 bar, see manometer (B) on the fan.
If the return pressure does not fall below 10 bar despite the fact that the oil is warm, the return pipe
from the fan and the return inlet on the tractor should be checked. The female socket of the re-
turn connection supplied (C) must be used to achieve sufficient return pressure.
Figure 3.38
Table 3.1 Recommended fan speed
RD 300 F RD 400 F RD 450 F
Small seeds
2200 rpm 2200 rpm 2200 rpm
Corn
3500 rpm 4100 rpm 4300 rpm
A
B
C
18