4A - INFORMATION CENTER
21C SERIE WHEEL LOADERS TRAINING MANUAL PROGRAMMING THE INFORMATION CENTER Hydraulic Filter Restriction Switch Check This will check the wiring from the information center to the hydraulic filter restriction switch in the head of the filter base to make sure that it is functioning properly. The information center monitors the temperature of the hydraulic oil and if the temperature is below 20o C it will not activate the warning indicator. This same check will also show if the hydraulic filter restriction switch indicator light is functioning. 1 2 3
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Up count
Down count
Program
Reset
Turn the key switch to the on position, do not start the machine. Advance to display field number 021 using the programming entry procedure listed previously. The hydraulic filter restriction light will flash intermittently. Press the Program/Reset switch back to the center position. You should see a 00 in the display. This is indicating that the switch is not being activated. If you see a 01 in the display with the machine off this indicates a short in the wiring. If the test is performed with the machine running the reading on the display will depend on if the filter is bypassing. Press the Program/Reset switch to the Reset position to exit the monitoring mode. Turn the key switch to the off position.
Air Filter Restriction Switch Check This will check the wiring from the information center to the air filter restriction switch in the air cleaner to make sure that it is functioning properly. This same check will also show if the air filter restriction switch indicator light is functioning. 1 2 3
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Turn the key switch to the on position, do not start the machine. Advance to display field number 022 using the programming entry procedure listed previously. The air filter restriction light will flash intermittently. Press the Program/Reset switch back to the center position. You should see a 01 in the display. This is indicating that the switch is not being activated. If you see a 00 in the display with the machine off this indicates a short in the wiring. If the test is performed with the machine running the reading on the display will depend on if the filter is plugged. Press the Program/Reset switch to the Reset position to exit the monitoring mode. Turn the key switch to the off position.
Centre de formation
4A.17.00
