Hydraulic system testing, To section 8.7, “hydraulic, System testing – Lull 944E-42 Service Manual User Manual
Page 264: Section 8.7, “hydraulic, To section 8.7, “hydraulic system testing, O section 8.7, “hydraulic system testing, 7 hydraulic system testing, Section 8.7, “hydraulic system testing, Section 8.7, “hydraulic system testing.” i, Hydraulic system
Hydraulic System
8.12
Model 644E-42/944E-42
Rev. 6/04
8.7
HYDRAULIC SYSTEM TESTING
8.7.1
Hydraulic Testing (SN 18460 and Before, Dual Joystick, 644E Only)
MU0483
ATTACH
TILT
FRAME
EXT/RET
LFT/LWR
AU
X
TRANS
1
4
6 5
7
7
3
8
9
3
FRONT STEERING
CYLINDER
ATTACHMENT TILT
CYLINDER
REAR STEERING
CYLINDER
FRONT AXLE
REAR AXLE
HYDRAULIC
RESERVOIR
TANDEM
GEAR
PUMP
MAIN
CONTROL
VALVE
LIFT/LOWER
CYLINDER
LEFT
SLAVE
CYLINDER
RIGHT
SLAVE
CYLINDER
POWER
STEERING
UNIT
OPERATOR'S CAB
FRAME SWAY
CYLINDER
FTR
FTB
AUXILIARY
HYDRAULICS
BRAKE
VALVE
P
P
A
A
T
STABILIZER
CYLINDER
FTR V
P T
G1
ACCUMULATORS
HYDRAULIC
OIL COOLER
E
R
R
E
TRANSFER
CYLINDER
Ш .041
Ш .048
1
2
3
4
T
P
1
2
3
4
T
P
R
E
R
E
R
E
R
T
P
L
LS
ACCUMULATOR
CHARGE/SECONDARY
FUNCTION VALVE
LS
DRAIN
P1
LSG
ACR
SW
P
ACF
EF
CF
PIL
PB
PBG
PPG
SW
PILOT SELECT
VALVE
P1
P2
B1
B3
A1
A3
STEER
SELECTOR
VALVE
P
R
1
2
DRAIN
FRONT JOYSTICK
REAR JOYSTICK
FRAME SWAY
JOYSTICK
P
T
1
2
BRIDGE DRAIN
OUTLET
INLET
TANK
1b
1a
6
4
4
2
RV
PR
RETURN FILTER
25 PSI (1,7 BAR)
BYPASS
CHECK VALVE
10
2
Shuttle
Valve
Auxiliary
Hydraulic Pressure
Release Valve
CHECK VALVE
85 PSI (5,9 bar)
EXTEND/
RETRACT
CYLINDER
R
E
Ø .040
8
Prim.
Sec.
B
A
5