Page 5-4
Schematics
5.3 - Hydraulic
Tm12 Work Platform - European
5.3 H
YDRAULIC
Legend:
Hydraulic Schematic Legend (107015-000)
DESIG-
NATION
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
Lift Cylinder Block
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 (2)
Control descent rate
Lift Cylinder Block
PMP
Pump
Provides hydraulic pressure for all
functions
On Electric motor,
left side, behind
charger
RV1
Main Relief Valve
Provides pressure protection to
pump, limits platform load
capacity.
Hydraulic Manifold
RV2
Steering Relief
Valve
Provides pressure protection to
pump and steering components
when steering
Hydraulic Manifold
RV3
Drive Relief Valve
Provides pressure protection to
Pump and Drive components
Left side, forward
of Charger
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 Block
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
V8
Velocity Fuse
Valve
Lock lift cylinder if line breaks
Lift Cylinder Block
Drive Relief Valve
Cylinder Valve Block
ORF
FC
V3
FD
RV2
Hydraulic Manifold
V1
V2
CV
RV1
RV3
V5
V7
V7
Summary of Contents for TM12
Page 1: ...TM12 ...
Page 10: ...Page VI Table of Contents List of Tables TM12 Work Platform European NOTES ...
Page 60: ...Page 3 34 Maintenance 3 18 Torque Specifications TM12 Work Platform European NOTES ...
Page 74: ...Page 5 6 Schematics 5 3 Hydraulic Tm12 Work Platform European NOTES ...
Page 79: ...Page 6 5 Illustrated Parts Breakdown TM12 Work Platform European NOTES ...
Page 81: ...Page 6 7 Illustrated Parts Breakdown Basic Assembly TM12 Work Platform European ...
Page 88: ...Page 6 14 Illustrated Parts Breakdown Hose Kit TM12 Work Platform European ...
Page 101: ......