Disconnect the solenoid valve connector and the T sensor connector. Measure the resistance between terminals 1 and 2 (or 3) on the solenoid valve or the sensor-side connector. Note: The specified resistance value is a value below 20C.
1. Resistance of proportional solenoid valve
Boom (SA) proportional solenoid valve, stick (SA) proportional solenoid valve, bucket (SA) proportional solenoid valve, swing (SA) proportional solenoid valve, travel (SA) proportional solenoid valve, auxiliary (SA) proportional solenoid valve The specified resistance is (23.5 +5)0.
2. Resistance of directional solenoid valve
(1) The resistance of the solenoid valve of the travel speed selector (SH) is (23.5 +5)0.
(2) The specified resistance of the rotary stop (SI) solenoid valve is (59.7 ± 10) 0.
(3) The specified resistance of the rotary buffer solenoid valve is (35±10)0.
3. The resistance of the pump displacement solenoid valve is specified as (15.5 +5)0.
4. The resistance specified by the N sensor resistance is (810 +24)0.
5. The resistance of the EC sensor (between terminals 1 and 3) is specified as (17 +0.4) k0.
6. Resistance of T sensor
The specified resistance is (2.45 +0.24)kQ (at 20C) or about 0.534kQ (at 60C).
