3.14.11. Check of operability of the economizer of compulsory idling

Check of the economizer. Check operability of the economizer for what on the working engine disconnect wires from a pneumatic valve. The engine has to decay.
Check tightness of a diaphragm of the economizer, having given to the economizer union air under pressure of 0,15 MPas (1,5 kgfs/cm2). During 10 about pressure drop it is not allowed.
Check of a pneumatic valve. Include ignition and the voltmeter or a control lamp check whether there is tension on pneumatic valve plugs. Check working capacity, disconnecting and attaching wires to pneumatic valve plugs. At operation of the valve the characteristic click has to be listened.
Launch the engine and disconnect wires from a pneumatic valve. The engine has to decay.
The valve has to be tight at air supply under the excessive pressure of 0,085 MPas (0,85 kgfs/cm2) to the unmarked union or when giving depression of 0,085 MPas (0,85 kgfs/cm2) to the union "1". Muffle the union "2" when checking tightness.
When giving depression of 0,085 MPas (0,85 kgfs/cm2) to the union "1" the valve has to open at a supply of tension of electric current of 12 V and be closed at removal of tension.
The consumed current at a voltage of 12 V — 0,375 A. The minimum tension of operation at a temperature from-40 to 100 °C, depression on the MPa union "1" 0,085 (0,85 kgfs/cm2) or excessive pressure on the unmarked union of 0,085 MPas
(0,85 kgfs/cm2), at the closed union "2" there have to be 9 Century.

PREVENTION
Marking of jets is defined by an expense which is measured by means of micromeasuring instruments. Setup of micromeasuring instruments is carried out on reference jets.

Check of the microswitch. Disconnect wires from the microswitch and by means of an ohmmeter or a control lamp with power no more than 5 W with the battery check operability of the microswitch, pressing and releasing its rychazhok. When pressing a rychazhok contacts of the microswitch have to be disconnected (the control lamp has to die away). At a free rychazhk contacts of the microswitch have to be closed (the control lamp burns). Check installation of the microswitch as it is stated above, and if necessary adjust it.
Check of the control unit pnevmokpapany is described in the section "Electric equipment".