2.5.2. Check of the thermostat of the cooling system operated on an algorithm
Remove the thermostat of the cooling system operated on an algorithm.
Check the thermostat in a cold state. The big plate of the valve has to adjoin densely on all circle to a connecting flange (fig. 2.212)
If it not so, replace the cooling system thermostat.
Fig. 2.213. Check of a valve stroke of the thermostat
Connect contacts of the thermostat auxiliary wires from a set of supportive measuring applications to joint stock bank. Holding pincers, lower it to a flange vertically in a pan with the boiling cooling liquid (mixing proportions: 50% of G12+) (fig. 2.213)
Do not touch metal parts of the thermostat as they heat up.
The resistive heater in addition heats wax in the thermostat.
Check whether the minimum course in 7 mm is reached 10 min. later.
If the minimum course in 7 mm is not reached, disconnect giving of tension from joint stock bank.
This check cannot be made on air. In this case damage of the strain gage is not excluded.