Stabil-TRAK™ System
10.10
Model 644E-42/944E-42
Rev. 6/04
10.4
STABIL-TRAK™ ELECTRICAL CIRCUIT OPERATION AND TROUBLESHOOTING
(644E-42, SN 20118 & Before, SN 0160002519 thru 0160003877)
(944E-42, SN 20123 & Before, SN 0160002514 thru 0160003881)
PB = Park Brake
SB = Service Brake
DE = De-energized
E = Energized
C = Closed
O = Open
Stabil-TRAK™ System Troubleshooting
FREE PIVOT
MODE
SLOW PIVOT
MODE I
SLOW PIVOT
MODE II
LOCKED
MODE I
LOCKED
MODE II
LOCKED
MODE III
Reference
Reference
Reference
Reference
Reference
Reference
Machine
Conditions
Switch/
Relay
Solenoid
Ignition On.
Boom Below 40°.
PB “OFF” &
SB Released.
Transmission
Fwd. or Rev.
Ignition On.
Boom Below 40°.
* PB “OFF” &
SB Applied.
Transmission
Neutral,
Fwd. or Rev.
Ignition On.
Boom Above 40°.
PB “OFF” &
SB Released.
Transmission
Fwd. or Rev.
Ignition On.
Boom Above 40°.
PB “ON” &
SB Released.
Transmission
Neutral.
Ignition On.
Boom Above 40°.
* PB “OFF” &
SB Applied.
Transmission
Fwd. or Rev.
Ignition On.
Boom Above 40°.
PB “OFF” &
SB Released.
Transmission
Neutral.
Solenoid 12A
E
DE
DE
DE
DE
DE
Solenoid 12B
E
DE
DE
DE
DE
DE
Solenoid 3
DE
DE
DE
E
E
E
Solenoid 4A
DE
E
E
DE
DE
DE
Solenoid 4B
DE
E
E
DE
DE
DE
Boom Proximity Sensor
C
C
O
O
O
O
Boom Switch Relay (E7)
E
E
DE
DE
DE
DE
Stabilizer Lock Relay (E6)
DE
E
DE
E
E
E
Stabilizer Lock Mode Light
OFF (DE)
OFF (DE)
OFF (DE)
ON (E)
ON (E)
ON (E)
Stabilizer Slow Pivot Mode
Light
OFF (DE)
ON (E)
ON (E)
OFF (DE)
OFF (DE)
OFF (DE)
Neutral Start Relay (E3)
DE
DE (Trans,
Fwd. or Rev.)
E (Trans, Neu.)
DE
DE
DE
E
Brake Relay (E5)
DE
E
DE
DE
E
DE
Park Brake Solenoid
E
E
E
DE
E
E
Park Brake Switch
O
O
O
C
O
O
Stabilizer Brake Switch
O
C
O
O
C
O
Transmission Control
Relay (E1)
DE
DE
DE
E
DE
DE
Summary of Contents for 944E-42
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Page 14: ...Safety Practices 1 8 Model 644E 42 944E 42 Rev 6 04 This Page Intentionally Left Blank...
Page 102: ...Boom 3 56 Model 644E 42 944E 42 Rev 6 04 This Page Intentionally Left Blank...
Page 139: ...4 37 Model 644E 42 944E 42 Rev 6 04 Cab and Covers This Page Intentionally Left Blank...
Page 144: ...Cab and Covers 4 42 Model 644E 42 944E 42 Rev 6 04 This Page Intentionally Left Blank...
Page 265: ...8 15 Model 644E 42 944E 42 Rev 6 04 Hydraulic System This Page Intentionally Left Blank...
Page 269: ...8 19 Model 644E 42 944E 42 Rev 6 04 Hydraulic System This Page Intentionally Left Blank...
Page 273: ...8 23 Model 644E 42 944E 42 Rev 6 04 Hydraulic System This Page Intentionally Left Blank...
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Page 425: ...8 175 Model 644E 42 944E 42 Rev 6 04 Hydraulic System This Page Intentionally Left Blank...
Page 501: ...8 251 Model 644E 42 944E 42 Rev 6 04 Hydraulic System MT1950 2 3 4 5 6 7 8 5 5...
Page 507: ...8 257 Model 644E 42 944E 42 Rev 6 04 Hydraulic System MT1950 1 2 3 4 5 6 7 4 4...
Page 508: ...Hydraulic System 8 258 Model 644E 42 944E 42 Rev 6 04 This Page Intentionally Left Blank...
Page 525: ...9 17 Model 644E 42 944E 42 Rev 6 04 Electrical System This Page Intentionally Left Blank...
Page 554: ...Electrical System 9 46 Model 644E 42 944E 42 Rev 6 04 This Page Intentionally Left Blank...
Page 759: ...10 3 Model 644E 42 944E 42 Rev 6 04 Stabil TRAK System This Page Intentionally Left Blank...
Page 765: ...10 9 Model 644E 42 944E 42 Rev 6 04 Stabil TRAK System This Page Intentionally Left Blank...
Page 785: ...10 29 Model 644E 42 944E 42 Rev 6 04 Stabil TRAK System This Page Intentionally Left Blank...
Page 800: ...Stabil TRAK System 10 44 Model 644E 42 944E 42 Rev 6 04 This Page Intentionally Left Blank...
Page 832: ...Transfer Carriage 11 32 Model 644E 42 944E 42 Rev 6 04 This Page Intentionally Left Blank...
Page 840: ...12 8 Model 644E 42 944E 42 Rev 6 04 Index...
Page 841: ...Accident Prevention Tags OS2180 8990403 Origin 5 00 Accident Prevention Tags...
Page 842: ...Accident Prevention Tags OS2180 8990403 Origin 5 00...
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