Lull 6K Service Manual - Manual (Page 113)

Reference Diagrams
Service Manual — Models 644B, 6K, 844C, 8K, 1044C, 10K 4-26
A
B
C
A
B
A
B
A B
A
B
BLACK
BLUE
IN
POWER
BROWN
GROUND
CLOSED WITH BOOM ANGLE LESS THAN 40°
OPEN WITH BOOM ANGLE GREATER THAN 40°
37115X
PROXIMITY SENSOR
BLACK-16
WHITE-16
RED-16
BLACK-16
AKE RELEASED — SWITCH OPEN
AKE APPLIED — SWITCH CLOSED
ARKING BRAKE PRESSURE SWITCH
OSED BELOW 100 PSI
PEN ABOVE 100 PSI
BROWN-16
ON STABILIZER BLOCK
BLACK-14
SOLENOID VALVE
BLACK-16
WHITE-16
RED-16
V1
S1
PRESSURE SWITCH
FRAME TILT OVERRIDE
REAR OSC LOCK
GREEN-16 FRAME TILT LOCKOUT
SOLENOID VALVE
VIOLET-14
SERVICE BRAKE
PRESSURE SWITCH
V2
S3
S2
OUT
POWER
TAN-14
OPEN BELOW 100 PSI
CLOSED ABOVE 100 PSI
CLOSED ABOVE 250 PSI
OPEN BELOW 250 PSI
TAN-14
COIL 38329A
COIL 38329A
37106A
39505A
39A
.080
.080
T1
B1
P1
SHOWN WITH AXLE LOCKED
(PILOT SPOOLS VENTED TO TANK)
PUMP
PRESSURE
ACCUMULATOR
PRESSURE
TO SERVICE BRAKES
S2
BRAKE
VALVE
PARK BRAKE CYLINDER
SPRING APPLIED / HYDRAULICALLY
RELEASED BRAKE
VENT
FRAME TILT CYLINDER
C.B. VALVES
CONTROL VALVE FRAME TILT SECTION
SW
B
A
FRAME TILT LOCKOUT VALVE
B6 FRAME TILT
T
P
A6
B
B6
A
A6
JOYSTICK
S3
V2
V1
HYDRAULIC SCHEMATIC
HYDRAULIC SCHEMATIC
450 PSI
PARK BRAKE VALVE
PULL TO APPLY BRAKE
PUSH TO RELEASE BRAKE
VALVE SHOWN WITH FRAME
TILT DISABLED. (BOOM UP)
C A
B
ACCUMULATOR PRESSURE
PUMP SYSTEM PRESSURE
LOCK VALVE
STABILIZER
150
PSI
PIL
T
SYS
.030
2
1
AND CYLINDER
.043
FILTER
PRESSURE
450 PSI
C.
)
Rear Oscillation Lock System Operation, Control Manifold Hydraulic System - Diagram 7