Page 5-2
Schematics 5.2 - Electrical Schematic
MX15/19
5.2 E
LECTRICAL
S
CHEMATIC
Legend:
Electrical Schematic 065616-024
Reference
Number
Name Function Location
ALM Alarm
Provides warning sound
when slope of machine
exceeds 2° side-to-side, or
fore and aft and also when
deck is lowering
Right Door
BAT Batteries Powers work platform
Swing-out Modules
on each side of the
Chassis
CHG Battery Charger Charges battery Left Battery Module
F1
5 AMP Circuit
Breaker
Electrical overload
protection
Chassis Controls
F2 175 AMP Fuse
Overload protection for
electric motor
Right Door
HM
Hour Meter/Low
Voltage indicator
Shows how many hours the
machine has been in use
Chassis
I/O I/O Board
Connection point for
machine function wiring
Chassis
MC Motor Control
Controls the speed of
electric motor
Chassis
MOT Motor
Provides power to hydraulic
pump
Chassis
R1 Motor Relay
Starts and stops motor
circuit
Right Door
S1
Chassis
Emergency Stop
Switch
Shuts down all machine
functions
Chassis Controls
S2
Chassis Lift
Switch
Elevates platform Chassis Controls
S3
Chassis Key
Switch
Allows some machine
functions to be initiated
from ground level
Chassis Controls
S4
Lift/Drive
Selector Switch
Activates lift or drive
functions
Platform Controls
S5
Platform Down
Switch
Cuts out high speed drive
when platform is elevated
Linkage
S6
Platform
Emergency Stop
Switch
Shuts down all machine
functions
Platform Controls
S7 Interlock Switch
Safety mechanism for
joystick
Platform Controls
S8
PQ Control
Handle
Proportionally controls the
drive and lift functions
Platform Controls
S9
Height Limit
Switch
Stops lift before cylinder
bottoms out
Linkage
S10 Steering Switch
Provides oil flow to steering
cylinder
Platform control
handle
SNSR Tilt Sensor
Activates tilt alarm and
disables all machine
functions except platform
lower when the machine is
more than 2° out of level
Chassis between
Battery Modules
SOL1A
Steering
Solenoid (right)
Shifts steering valve to the
left
Hydraulic Manifold
SOL1B
Steering
Solenoid (left)
Shifts steering valve to the
right
Hydraulic Manifold
SOL2A
Platform Lift
Solenoid
Raises platform Hydraulic Manifold
SOL2B Down Solenoid Lowers platform Lift Cylinder
SOL3A
Depression
Mechanism
Extend Solenoid
Extends depression
mechanism bars
Hydraulic Manifold
SOL3B
Depression
Mechanism
Retract Solenoid
(2)
Retracts depression
mechanism bars
Depression
Mechanism cylinder
SOL4A
Reverse
Solenoid
Shifts forward/reverse valve
to reverse
Hydraulic Manifold
SOL4B
Forward
Solenoid
Shifts forward/reverse valve
to forward
Hydraulic Manifold
Reference
Number
Name Function Location