New Holland T8010 Manual page 1371

Starting System Circuit Operation
Unswitched battery power, B+ is supplied through fuse #7 to the ignition switch connector 161. When the key is
turned to the START position current is supplied to the FNRP Module connector 219. If the transmission is in
neutral or park current flows to the buss box starter relay, and onto the intermediate starter relay which energizes
the starter relay.
Starter Motor Circuit Troubleshooting
Before troubleshooting the starting system make sure that the following operating conditions are met:
A. The batteries are fully charged and all connections are clean and tight.
B. Check fuse #7.
C. Transmission in neutral or park.
Starting 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
Engine does not crank when
key is turned to start
Click is heard when key is
turned but engine does not
crank
Section 55 - Electrical System - Chapter 1
STARTING SYSTEM
Possible Cause
Fuse #7
Ignition switch
FNRP Module
Starter relay
Intermediate starter relay
Starter motor
Starter motor
Starter relay
Intermediate starter relay
55-1-190
Reference/Test
A - Ignition Switch Power Supply
Test, test point 1
A - Ignition Switch Power Supply
Test, and
B - Ignition Switch Test,
test points 1 and 2.
C - FNRP Module test.
Refer to Transmission Section of
Service Manual and check Neutral
Safety switch adjustment.
D - Starter Relay Test
E - Intermediate Starter Relay Test
F -Starter Motor Test
F -Starter Motor Test
D - Starter Relay Test
E - Intermediate Starter Relay Test