Upright TM 12 Series - Page 66

Pa
g
e 5-4
Schematics - Hydraulic Schematic
505115-000
5.3 H
YDRAULIC
S
CHEMATIC
Legend:
Hydraulic Schematic, 101180-020
DESIG-
NATION
NAME FUNCTION LOCATION
CT1 Check Valve
Allows Depression Mechanism to
retract in drive mode
Hydraulic
Manifold
CYL1 Steering Cylinder
Provides force to turn front wheels
Front of chassis
above drive
motors
CYL2 Lift Cylinder
Provides force to lift platform
Mounted under
upper boom
weldment
CYL3 Depression Mecha-
nism Cylinder
Extends or retracts DM bar
Front of hydraulic
tank
CT2R Priority Flow Divider Provides priority oil flow to
steering
Hydraulic
Manifold
FL1 Suction Strainer
Traps particles in hydraulic tank
Inside hydraulic
tank at outlet
FL2 Return Filter
Filters oil returning to tank
Back of hydraulic
tank
M Drive Motors (2) Provides tractive effort to move
platform
Front motor
mounts
PPump
Provides hydraulic pressure for all
functions
On Electric motor
at left rear of
control module
CT3
Main Relief Valve Provides pressure protection to
pump, limits platform load
capacity.
Hydraulic
Manifold
CT5 Steering Relief
Valve
Provides pressure protection to
pump and steering components
when steering
Hydraulic
Manifold
CT4 Lift Relief Valve Provides pressure protection to
Lift components
Hydraulic
Manifold
TNK Tank Holds hydraulic oil Control Module
CT6 Steering Right/Left
Valve
Provides directional control for
steering
Hydraulic
Manifold
CT7 Lift/Drive Valve Provides oil control for drive or lift
functions
Hydraulic
Manifold
CT13 Down/Emergency
Lowering Valve
Allows oil to return to tank;
manually operated for emergency
lowering
Lift cylinder
CT8 Pothole mechanism
Retract Valve
Provides oil control for DM bar DM cylinder
CT12 Pothole Mechanism
Extend Valve
Provides oil control for DM bar
Hydraulic
Manifold
CT11 Forward/Reverse
Valve
Provides oil control for drive or lift
functions
Hydraulic
Manifold
CT9 &
CT10
Counterbalance
Valve
Prevents machine from running
away on slopes; cushions stops
Hydraulic
Manifold
BBrake Eliminates motion when drive
function is disabled.
Rear Chassis
P1 Overload Valve Prevents machine from lifting with
a weight greater than the safe
working load.
Chassis
FR Flow Regulator Controls hydraulic oil flow to and
from the main lift cylinder.
Chassis