New Holland T8010 Manual page 1378

Wiper/Washer System Circuit Operation
The wiper/washer system consists of two separate systems, front and rear.
Each system has a two speed motor and a separate washer motor and reservoir.
The two systems are energized by switched power.
Wiper/Washer System Circuit Troubleshooting
Before troubleshooting the Wiper/Washer system make sure that the following operating conditions are met:
A. The batteries are fully charged and all connections are clean and tight.
B. Transmission in neutral or park.
C. Check all connectors for full installation, loose, corroded or pushed out terminals.
Section 55 - Electrical System - Chapter 1
WIPER/WASHER SYSTEM
55-1-197