Upright TM12 Service Manual

Hydraulic Schematic Section 4 - Schematics
Page 4-4 107099-002 TM12 Work Platform
4-2 H YDRAULIC S CHEMATIC
Legend:
107015-001 Hydraulic Schematic Legend
DESIGNATION NAME FUNCTION LOCATION
CV Check Valve
Allows Depression Mechanism to
retract in drive mode
Hydraulic Manifold
CYL1 Steering Cylinder
Provides force to turn front
wheels
Mid-chassis
CYL2 Lift Cylinder Provides force to lift platform
Mounted inside Mast
Assembly
CYL3
Depression
Mechanism
Cylinders (2)
Extends or retracts DM bar Mid-chassis
CYL4 Brake Cylinder
Stops machine from moving
while parked
Battery
Compartment
FC Flow Control Control Elevation Rate Flow Control Valve
FD
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
Left side, rear of
Charger
MOT Drive Motors (2)
Provides tractive effort to move
platform
Front Motor Mounts
ORF Down Orifice Control descent rate Lift Cylinder
PMP Pump
Provides hydraulic pressure for
all functions
On Electric motor,
left side, behind
charger
RV1 Main Relief Valve
Provides pressure protection to
pump.
Hydraulic Manifold
RV2
Steering Relief
Valve
Provides pressure protection to
pump and steering components
when steering
Hydraulic Manifold
TNK Tank Holds hydraulic oil Right Side Door
V1
Steering Right/
Left Valve
Provides directional control for
steering
Hydraulic Manifold
V2 Lift Valve
Provides oil control for drive or
lift functions
Hydraulic Manifold
V3
Down/Emergency
Lowering Valve
Allows oil to return to tank;
manually operated for emergency
lowering
Lift Cylinder
V4
Depression
mechanism
Retract Valve
Provides oil control for DM bar DM Cylinder
V5
Depression
Mechanism
Extend Valve
Provides oil control for DM bar Hydraulic Manifold
V6
Forward/Reverse
Valve
Provides oil control for drive or
lift functions
Hydraulic Manifold
V7
Counterbalance
Valve
Prevents machine from running
away on slopes; cushions stops
Hydraulic Manifold
Flow Control Valve Assembly
FC
FD
RV2
Hydraulic Manifold
V1
V2
CV
RV1
RV3
V5
V7
V7

Upright TM12 Specifications

General

Brand	Upright
Model	TM12
Category	Lifting Systems
Language	English