Upright ab62, Service And Parts Manual

Page: 54 / 146

4-12 AB62 Work Platform - European
T
ROUBLESHOOTING
Section
4.4
Table 4-2: Hydraulic Truth Table - AB62
C
OMPONENT
F
UN
CT
IO
N
S
T
EER
R
ISE
R
E
L
EVA
T
E
/D
ESC
EN
D
B
OO
M
E
XT
EN
D
/R
E
T
RA
CT
B
OO
M
R
AI
S
E
/L
OWE
R
J
IB
U
P
/D
OWN
C
AG
E
L
E
VEL
U
P
/D
OW
N
C
AG
E
R
OT
A
T
E
CW
/C
C
W
T
UR
RE
T
R
OT
A
T
E
CW
/CCW
D
RI
V
E
F
OR
WA
R
D
/R
E
VER
S
E
F
RO
N
T
A
XL
E
L
OC
K
B
RA
KE
R
EL
EA
SE
E
M
E
R
G
E
NCY
L
OWE
R
CB1 Counterbalance Valve, Riser X
CB2 Counterbalance Valve, Boom Extend X
CB3 Counterbalance Valve, Boom Raise X
CB4 Counterbalance Valve, Jib Cylinder X
CB5 Counterbalance Valve, Master Cylinder X
CB6 Counterbalance Valve, Slave Cylinder X
CB7 Counterbalance Valve, Cage Rotate X
CB8 Counterbalance Valve, Turret Rotate X
CB9 Counterbalance Valve, Left Axle Cylinder X
CB10 Counterbalance Valve, Right Axle Cylinder X
CV1-2 High Pressure Test Port Check Valve
CV3-7 Low Pressure Test Port Check Valve X X X X X
CV8 Boom Extend Cylinder Check Valve X
CV9 Turret Rotate Check Valve X
CV10 High Pressure Check Valve
CV11 Low Pressure Check Valve
CV12 Return Filter Check Valve
CYL1 Steer Cylinder X
CYL2 Riser Cylinder X
CYL 3 Boom Extend Cylinder X
CYL4 Boom Raise Cylinder X
CYL5 Jib Cylinder X
CYL6 Master Cylinder X
CYL7 Slave Cylinder X
CYL8 Turret Rotate Brake Cylinder X
CYL9-10 Wheel Brake Cylinders X
CYL11 Left Axle Lock Cylinder X
CYL12 Right Axle Lock Cylinder X
FD1-2 Flow Divider X
FL1 Suction Filter X X X
FL2 Return Filter
FL3 Suction Filter X X X X X X X X x
FL4 Return Filter
FL5 Suction Filter X
MOT1 Left Rear Drive Motor X
MOT2 Right Front Drive Motor X
MOT3 Right Rear Drive Motor X
MOT4 Left Front Drive Motor X
MOT5 Swing Motor X