Hydraulic Section 4 - Schematics
Page 4-8 113101-000 MX15 / MX19 | Service Manual
4-2 H
YDRAULIC
Legend:
Hydraulic Schematic 065615-023
Figure 4-7:
Hydraulic Components Location
Reference
number
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 Front of Chassis above drive motors
CYL2 Lift Cylinder Provides force to lift platform Elevating Assembly
CYL3 Depression Mechanism Cylinder (2) Extends or retracts depression mechanism bar Front of hydraulic reservoir
DVDR Priority Flow Divider Provides priority fluid flow to steering Hydraulic Manifold
FL1 Suction Strainer Traps particles in hydraulic reservoir Inside hydraulic reservoir at outlet
FL2 Return Filter Filters fluid returning to reservoir Back of hydraulic reservoir
MOT Drive Motors (2) Provides tractive effort to move platform Front motor mounts
OR1 Orifice Controls the fluid flow rate of the lift cylinder Lift Cylinder
OR2 Orifice Controls the fluid flow rate of the depression mechanism cylinders Hydraulic Manifold
OR3 Orifice Controls the fluid flow rate of the brakes Hydraulic Manifold
PMP Pump Provides hydraulic pressure for all functions On Electric Motor between Battery Modules
RV1 Steering Relief Provides pressure protection to pump and steering components when steering Hydraulic Manifold
RV2 Lift Relief Valve Provides pressure protection to lift system Hydraulic Manifold
RV3 Main Relief Valve Provides pressure protection to hydraulic system Hydraulic Manifold
RES Reservoir Holds hydraulic fluid Rear end of Chassis
V1 Steering Right/Left Valve Provides directional control for steering Hydraulic Manifold
V2A Lift Valve Provides fluid control for drive or lift functions Hydraulic Manifold
V2B Down/Emergency Lowering Valve Allows fluid to return to reservoir; manually operated for emergency lowering Lift Cylinder
V3A Depression Mechanism Extend Valve Provides fluid control for depression mechanism bar Hydraulic Manifold
V3B Depression Mechanism Retract Valve (2) Provides fluid control for Depression Mechanism bar Depression Mechanism Cylinder
V4 Forward/Reverse Valve Provides fluid control for drive or lift functions Hydraulic Manifold
V5 Counterbalance Valve (2) Provides dynamic braking Hydraulic Manifold
FRONT
REAR
Right
Door
Left
Door
PMP
Pump
Emergency
Lowering
Control
Hydraulic
Manifold
CYL1
Steering
Cylinder
FL2
Return
Filter
MOT
Hydraulic Motors
with Parking Brakes
FL1
Suction Strainer Filter
(Output of Reservoir)
CYL2
Lift
Cylinder
RES
Hydraulic
Reservoir
CV
DVR1
RV1
RV2
RV3
CYL3 - V3B
Depression
Mechanism
Cylinder and
Retract Valve
V2B - OR
Emergency
Lowering
Solenoid
and Orifice
V1
V2A
V3A
V4
V6
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