Avtodizel ???-238??, Operating Instructions Manual, Page: 77 / 254

77
THE SWITCH OF MECHANICAL TYPE
The fan drive mechanical switch (fig. 39) united with thermo-
sensor and handle switcher-over of the modes intended for control of
the fan drive. Its working mode is installed with lever 20 in one of
three positions:
1. Position
″
А
″
- automatic;
2. Position
″
В
″
- constantly switch-in;
3. Position
″
О
″
- constantly switch-off.
Fig. 39. Fan drive switch
1 – body cover; 2 – back spring; 3 – O-ring; 4 – washer; 5 – spool;
6 – spool spring; 7 – pusher; 8 – piston; 9 – O-ring; 10 – adjusting
washer; 11 – O-ring; 12 – sensor; 13 – nut; 14 – stop rod; 15 –
washer; 16 – plug; 17 – stop spring; 18 – ball; 19 – body; 20 –
cock lever; 21 – spring; 22 – ball; 23 – ring; 24 – cock plug; 25 –
outlet pipe; 26 – inlet pipe.