Checking devices to produce control samples, the characteristics of
which must strictly conform to the specifications. Each
receiver checks the xindex, complete with appropriate control
sensor. By contrast, the sensor is checked, complete with a control receiver
pointer.

Fast assembly speedometer checked for special device, comparing the
Speedo scanned the node with the corresponding node of the control device.
Accuracy of high-speed speedometer unit must meet
technical requirements specified above.

Ammeter tested by comparing its readings with the readings of the control
ammeter. Dixagram of the device for checking the ammeter shown in
in Fig. 240.

A pointer to the level of fuel in the tank is checked on a special control
device. The device is a vertically mounted board.
In the right corner of the shield with the arm fixed sensor. The shield makes
layout of the provisions of the float of the 0, 1/4, 1/2 and P levels in the fuel
tank. In each of these provisions is held a special float sensor
clip. The layout of the board operates according to the dixagram shown in Fig. 241.
After joining the xindex of fuel to the battery voltage of 12 V
change the position of the float, fixing it in position 0, 1/4, 1/2 and 1, and
watch the testimony of the device. The accuracy of the testimony must meet
technical requirements specified above.

A pointer to the oil pressure checked on a special device. By the screwed
in the adaptation of the sensor is supplied oil under pressure created by the pump and
controlled precision pressure gauge which is connected parallel to the sensor.
After joining the checked pointer to the battery voltage
12 to the sensor is supplied oil under pressure, so that the arrow pointer
established the mark of the scale 2 kgf / cm.
By comparing the readings with the readings of the pointer control manometer, determine the
error of the audited unit. Likewise, check and other points
the scale of the oil pressure indicator.

Coolant temperature is checked, complete with a sensor on the
special device (Fig. 242), in which the sensor is heated in a liquid
and monitor the temperature of the latter thermometer. The thermometer should be
Located in the adaptation as close as possible to the sensor. The head of the thermometer
must be at the location of the sensor cylinder.
As the liquid is recommended to use oil, used for lubrication
engine.
After joining the coolant temperature indicator for battery
battery voltage of 12 V liquid is heated to a temperature of 115-120C. The liquid is then
slowly cooled and record the true temperature of the fluid on the testimony of
thermometer.
Incorrect readings of pulse devices are almost always caused by a violation
control sensors, so when finding fault must first be
replace the sensor is pre-tested and serviceable. If the replacement sensor is correct
readings are not restored, replace the receiver pointer.

WARNING! To avoid possible short circuits and combustion devices
during the repair work, you must first disconnect the wiring for
then remove the "mass" wire to the battery cable.