10054 stabil-trak™ system troubleshooting, Section 10.10, Stabil-trak – SkyTrak 8042 Service Manual User Manual
Page 870: Boom interlock, Electrical circuit, Operation and, Troubleshooting, 19987 and, After), Section
10.29
Model 8042, 10042, 10054 Legacy
Rev. 10/03
Stabil-TRAK™ System and Boom Interlock System
10.10 STABIL-TRAK™ BOOM INTERLOCK ELECTRICAL CIRCUIT OPERATION AND
TROUBLESHOOTING (10054, 17985-19987 AND 0160002332 & AFTER)
IMPORTANT: Before using the 10054 Stabil-TRAK
System Troubleshooting chart and diagrams, complete
Section 10.8, “Stabil-TRAK™ System Test,” on page
10.20 and Section 10.11, “Boom/Outrigger Interlock
System Test,” on page 10.34, to determine what part of
the system is not functioning properly.
Note: If an outrigger is raised or a pressure switch is
defective, boom on the 10054 will not extend beyond the
42 Series extension limit.
Definitions:
10054 Stabil-TRAK™ System Troubleshooting
BOOM EXTEND MODE 1
BOOM EXTEND MODE 2
BOOM EXTEND MODE 3
Reference
Page (10.31)
Reference
Page (10.32)
Reference
Page (10.33)
Machine
Conditions
Switch/
Relay
Solenoid
Ignition On
Boom Below 40°
Boom Retracted
PB Released
Trans. Fwd. or Rev.
Outriggers Raised
Ignition On
Boom Below 40°
Boom Extended To
42 Series Extension Limit
PB Released
Trans. Fwd. or Rev.
Outriggers Raised
Ignition On
Boom Below 40°
Boom Extended Beyond
42 Series Extension Limit
PB Applied By Interlock Sys.
Trans. In Neutral By Interlock Sys.
Outriggers Lowered
Solenoid 12A
St
a
b
il-
TR
AK Comp
one
nt
s
Aff
e
c
te
d
By
B
o
om
I
n
te
rl
oc
k
S
y
st
em
E
E
DE
Solenoid 12B
E
E
DE
Solenoid 3
DE
DE
E
Solenoid 4A
DE
DE
DE
Solenoid 4B
DE
DE
DE
Boom Angle Sensor
C
C
O
Boom Switch Relay
E
E
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
O
Park Brake Light
OFF (DE)
OFF (DE)
ON (E)
BOOM EXTEND INTERLOCK SYSTEM TROUBLESHOOTING
Boom Extend Interlock Sensor
C
O
O
Boom Extend Interlock Relay
E
DE
DE
Boom Extend Lockout Relay
E
DE
DE
Outrigger Pressure Switches
O
O
C
Left Outrigger Lockout Relay
DE
E
E
Right Outrigger Lockout Relay
DE
E
E
Stabilizer Interlock Relay
DE
DE
E
Stabilizer Lock-Up Relay
DE
DE
E
Extend Circuit Solenoid Valve
E
E
E
Secondary Function Manifold
Park Brake Solenoids
E
E
DE
Park Brake Interlock Relay
DE
DE
E
Park Brake Disengage Relay
E
E
DE