Service Manual Instruction Manual

Stabil-TRAK™ System and Boom Interlock System
10-14
6036, 6042, 8042, 10042, 10054
10.8 STABIL-TRAK™ BOOM INTERLOCK ELECTRICAL CIRCUIT OPERATION AND
TROUBLESHOOTING (6042/8042/10042)
Note: Before using the 6042, 8042 and 10042 Stabil-
TRAK System Troubleshooting chart and diagrams,
complete the Section 10.7.2, “Stabil-TRAK™ System
Test Procedures,” to determine what part of the system
is not functioning properly.
Definitions:
PB = Park Brake
SB = Service Brake
DE = De-energized
E = Energized
C = Closed
O = Open
6042, 8042 and 10042 Stabil-TRAK™ System Troubleshooting
FREE PIVOT
MODE
SLOW PIVOT
MODE
LOCKED
MODE
Refer to Section , “6042, 8042
and 10042 Stabil-TRAK™ Elec-
trical Circuit FREE PIVOT
Mode.”
Refer to Section , “6042, 8042
and 10042 Stabil-TRAK™ Elec-
trical Circuit SLOW PIVOT
Mode.”
Refer to Section , “6042, 8042
and 10042 Stabil-TRAK™ Elec-
trical Circuit LOCKED MODE.”
Machine
Conditions
Switch/
Relay
Solenoid
Ignition On
Boom Below 40°
Boom Retracted
PB & SB Released
Trans. in Forward or Reverse
Ignition On
Boom Above 40°
Boom Extended
PB & SB Released
Trans. in Forward or Reverse
Ignition On
Boom Above 40°
Boom Extended
PB & SB Applied
& Trans. in Neutral
Solenoid 12A E DE DE
Solenoid 12B E DE DE
Solenoid 3 DE DE E
Solenoid 4A DE E DE
Solenoid 4B DE E DE
Boom Angle Sensor C O O
Boom Switch Relay E DE DE
Stabilizer Lock Relay DE DE E
Stabilizer Light OFF (DE) OFF (DE) ON (E)
Ignition Switch C C C
Park Brake Switch O O C
Service Brake Switch O O C
Secondary Function Manifold
Park Brake Solenoids
EEDE
Park Brake Disengage Relay E E DE
Neutral Start Relay DE DE E