Service Manual User guide
Table Of Contents
- 10709790_B_644B,6K,844C,8K,1044C,10K_Lull_Service_Mnl
- Quick Reference
- Revision Record
- Table Of Contents
- List Of Figures
- List Of Tables
- Section 1 Safety
- Section 2 Identification & Specifications
- Section 3 General Maintenance
- Section 4 Reference Diagrams
- Section 5 Supply, Pressure & Return Hydraulics
- Section 6 Boom & Transfer
- Section 7 Frame Tilt & Oscillation
- Section 8 Transmission
- Section 9 Brakes
- Section 10 Outriggers
Reference Diagrams
4-25
Service Manual — Models 644B, 6K, 844C, 8K, 1044C, 10K
ENGINE
WATER
TEMPERATURE
ENGINE
PRESSURE
OIL VOLTAGE
BATTERY
FUEL
LOCK
OSC
REAR
BRAKE
PARK
PRESS
BRAKE
LOW
10
11
12
7
9
8
1
4
5
6
8
5
GRD
1
12
OIL
2
11
LAMPS
3
10
POWER
49
WATER
6
7
FUEL
B
C
1
7-1/2A
3
2
4
6
5
20A
10A
10A
30A
10A
DCB
A
FE
3
2
7
30
87A 87
86
85
30
87A 87
86
85
30
87A 87
86
85
A
B
C
GAUGE MODULE AND CONNECTOR
TRANSMISSION
CONTROLLER
SWITCHED
FUSE PANEL
36445A
D
B
C
GREEN-16
WHITE-14
RED-14
RELAYS
P30796
LOCK
OSC.
E
BLACK-16
VIOLET-14
BRA
K
BRA
K
PA
R
BLUE-16
A
BLUE-16
DIODE MODULE
P21787
BLUE-16
P30959
SWITCH
DISCONNECT
TRANSMISSION
BLUE-16
CLO
S
OPE
N
R3
R1
R2
PROXIMITY SWITCH
RELAY
OSC. LOCK WARNING
LIGHT RELAY
SERVICE BRAKE
RELAY
WHITE-14
TAN-14
PINK-14
11
4
GREEN-16
WHITE-14
RED-14
3713
9
BOOM BELOW 40°
SERVICE BRAKE RELEASED
BOOM BELOW 40°
SERVICE BRAKE APPLIED
BOOM BELOW 40°
SERVICE BRAKE APPLIED
OPERATING FRAME TILT
BOOM ABOVE 40°
SERVICE BRAKE RELEASED
PROXIMITY
SWITCH
FRAME TILT
OVER-RIDE SWITCH
SERVICE BRAKE
SWITCH
RELAY #1
PIN #86
STABILIZER
SOLENOID
FRAME TILT
LOCKOUT SOLENOID
CLOSED
OPEN
CLOSED
CLOSED
OPEN
OPEN
OPEN
CLOSED
CLOSED
OPEN
CLOSED
OPEN
ENERGIZED
FRAME TILT ALLOWED
DE-ENERGIZED
FRAME TILT DISABLED
ENERGIZED- WHILE
FRAME TILTING
ENERGIZED
(UNLOCKED)
12 VOLTS
12 VOLTS
12 VOLTS
12 VOLTS
12 VOLTS
12 VOLTS
0 VOLTS
0 VOLTS
0 VOLTS
12 VOLTS
12 VOLTS
0 VOLTS
BOOM ABOVE 40°
SERVICE BRAKE APPLIED
OPEN OPEN
CLOSED 0 VOLTS 12 VOLTS 0 VOLTS
DE-ENERGIZED
(LOCKED)
BOOM ABOVE 40°
(ATTEMPTING TO
FRAME TILT)
OPEN
DEPENDS ON
BRAKE POSITION
OPEN
0 VOLTS
0 VOLTS
OPERATING
PARAMETERS
REAR OSC.
LOCKED
LIGHT (10)
OFF
OFF
OFF
ON
ON
ON
REAR OSCILLATION LOCK SYSTEM OPERATION / TROUBLESHOOTING GUIDE
R1
R3
R2
S1 V2
S2
S3 V1
RELAY #2
PIN #86
DEPENDS ON
BRAKE
POSITION
RELAY #3
PIN #86
ENERGIZED
(UNLOCKED)
DE-ENERGIZED
(LOCKED)
DE-ENERGIZED
(LOCKED)
DE-ENERGIZED
(LOCKED)
ENERGIZED
FRAME TILT ALLOWED
DE-ENERGIZED
FRAME TILT DISABLED
DE-ENERGIZED
FRAME TILT DISABLED
Rear Oscillation Lock System Operation, Control Manifold Hydraulic System - Diagram 7