New Holland T8010 Manual page 1379

Wiper/Washer System Symptom Chart
NOTE: The batteries must be fully charged and all connections clean and tight. Use a multimeter (DVOM) for these
tests. For battery testing and service, see the battery section in the service manual.
IMPORTANT: DO NOT use a self-powered test light for any of these tests. Use of a self-powered test light can
cause damage to components in this system.
WARNING: Before performing any of the electrical tests, be sure all operating controls are in neutral or park
!
lock position. This will eliminate accidental movement of the machine or start-up of power driven equipment.
Symptom
Front wiper motor is
inoperative
Front wiper motor does not
park, stops when switch is
turned off
Front wiper motor, low speed
only
Front wiper motor, high
speed only
Front washer inoperative
Rear wiper motor is
inoperative
Rear wiper motor does not
park, stops when switch is
turned off
Rear washer inoperative
Section 55 - Electrical System - Chapter 1
Possible Cause
Power/Ground Supply
Wiper Switch
Wiper Motor
Wiper Motor
Wiper Switch
Wiper Motor
Wiper switch
Wiper Motor
Wiper switch
Washer Switch
Washer Motor
Washer Fluid Supply
Power/Ground Supply
Wiper Switch
Wiper Motor
Wiper Motor
Wiper Switch
Washer Switch
Washer Motor
Washer Fluid Supply
55-1-198
Reference/Test
Diagnostic test A.
Diagnostic test C.
Diagnostic test D.
Test point E-12.
Test point E-10.
Test point E-6.
Test point E-4.
Test point E-9.
Test point E-7.
Test point F-1.
Test point F-3
Check reservoir and fluid lines.
Diagnostic test B.
Diagnostic test D.
Diagnostic test G.
Test point G-8.
Test point G-6.
H-1.
H-3.
Check reservoir and fluid lines.