Section 3 - Troubleshooting
Hydraulic Truth Table - AB62
104045-021 - AB62 Work Platform - European Model
Page 3-17
3-11 H
YDRAULIC
T
RUTH
T
ABLE
- AB62
C
OMPONENT
F
U
NCTION
S
TEER
R
ISER
E
LE
V
A
TE
/D
ESC
E
ND
B
OO
M
E
XTEND
/R
ETR
ACT
B
OO
M
R
AI
SE
/L
OW
E
R
J
IB
U
P
/D
OW
N
C
AG
E
L
EV
E
L
U
P
/D
OW
N
C
AG
E
R
OT
AT
E
CW/C
C
W
T
URR
ET
R
OTA
T
E
CW/CCW
D
RIV
E
F
OR
WA
R
D
/R
E
VER
SE
F
RO
N
T
A
XLE
L
OC
K
B
RA
KE
R
ELEASE
E
ME
R
G
ENC
Y
L
OW
E
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
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
CYL11
Left Axle Lock Cylinder
X
CYL12
Right Axle Lock Cylinder
X
FD1-2
Flow Divider
X
FL1
Suction Filter
X
X
X
FL2
Suction Filter
X
X
X
X
X
X
X
X
X
FL3
Return Filter
MOT1
Left Rear Drive Motor
X
MOT2
Right Front Drive Motor
X
MOT3
Right Rear Drive Motor
X
MOT4
Left Front Drive Motor
X
ORF1
Turret Orifice
X
ORF2
Riser Orifice
X
ORF3-4
Drive Orifice
X
PMP1
2 Stage Boom Pump
X
X
X
X
X
X
X
X
PMP2
Variable Drive Pump
X
X
X
PMP3
Auxiliary Pump
X
ROT
Cage Rotator
X
RV1
Low Pressure Relief Valve
X
X
X
X
X
RV2
High Pressure Relief
X
X
X
RV3
Jib Cylinder Relief
X
V1
Steering Valve
X
V2
Riser Valve
X
V3
Boom Extend Valve
X