Repair manual

Troubleshooting the Water Spray System RD 27
wc_tx001224gb.fm 88
7.4 Checking the Spray Switch
Prerequisite  Fully-charged battery
 Machine shut down
Procedure Perform the procedure below to check the spray switch.
1. Shut down the machine.
2. Remove the steering tower cover (a).
3. Locate the spray switch (b).
4. Move the key switch to the ON position.
5. Measure the voltage between terminal/wire 118-GY-16 of the spray switch and
ground.
Is at least 10 VDC measured?
6. Move the spray switch to the continuous position.
7. Measure the voltage between terminal/wire C922-BK-16 and ground.
Is at least 10 VDC measured?
8. Move the spray switch to the intermittent position.
9. Measure the voltage between terminal/wire C935-PU-16 and ground.
Is at least 10 VDC measured?
Result The spray switch has now been checked.
If the problem has not been resolved, continue with the next topic.
Yes ____ No ____
Continue. Repair wire 118-GY-16.
Yes ____ No ____
Continue. The spray switch has failed; replace it.
Yes ____ No ____
The spray switch is OK. The spray switch has failed; replace it.