Lull 6K Service Manual - Manual (Page 128)

Reference Diagrams
4-41 Service Manual — Models 644B, 6K, 844C, 8K, 1044C, 10K
R4 RELAY
IGNITION SWITCH RELAY
R5 RELAY
INSTRUMENT PAN
PARKING BRAKE VA
18"
B
L
AC
K -
1
6
A B
A B
IN
O
U
T
RH OUTRIGG
DIFFERENTIA
39321A
LH OUTRIGGE
DIFFERENTIAL
39321A
S6
S5
(39321A)
DIFFERENTIAL PRESSURE SWITCH
BOOM EXTENDED LESS
THAN 21' - OUTRIGGERS UP
PROXIMITY
SWITCH
LH OUTRIGGER
SWITCH
RELAY #4
PIN #86
BOOM/TRANSF
EXTEND LOCKO
VALVE SOLENO PIN #86
RELAY #5
BOOM/TRANSFER EXTEND LOCKOUT CIRCUIT OPERATION
CLOSED OPEN
OPEN
OPEN
CLOSED
OPEN
OPEN
OPEN
CLOSED
CLOSED
CLOSED
CLOSED
ENERGIZED - BOOM
& TRANSFER EXT. A
12 VOLTS
0 VOLTS
12 VOLTS
12 VOLTS
0 VOLTS
12 VOLTS
OPEN CLOSED OPEN 0 VOLTS 0 VOLTS
DE-ENERGIZED - BO
& TRANSFER EXT. D
OPERATING
PARAMETERS
RH OUTRIGGER
SWITCH
BOOM EXTENDED TO 21'
OUTRIGGERS UP
BOOM EXTENDED TO 21'
OR FURTHER
OUTRIGGERS DOWN
& TRANSFER EXT. A
ENERGIZED - BOOM
BOOM EXTENDED LESS
OUTRIGGERS DOWN
THAN 21' 12 VOLTS 12 VOLTS
ENERGIZED - BOOM
& TRANSFER EXT. A
BOOM EXTENDED TO 21'
LH OUTRIGGER UP
RH OUTRIGGER DOWN
DE-ENERGIZED - BO
& TRANSFER EXT. D
RH OUTRIGGER UP
LH OUTRIGGER DOWN
BOOM EXTENDED TO 21'
OPEN CLOSED OPEN 0 VOLTS
DE-ENERGIZED - BO
& TRANSFER EXT. D
0 VOLTS
S4 S5 S6 R4 R5
Boom/Transfer Extend Lockout Circuit Operation, Mid-Inlet Hydraulic System - Diagram 11