Upright SL20 Series User Manual

Page 5-2
Schematics - Electric - Model
SL20
5.2 E
LECTRIC
-M
ODEL
Legend:
Electrical Schematic, 065616-023
DESIG-
NATION
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.
Control Module
BAT Batteries Provides power to work platform Power Module
CAP Capacitor Circuit protection
Lower Control
Boxinsidewire
loom
CHG Battery Charger Charges battery Power Module
D1 Diode Circuit protection
Lower Control
Boxinsidewire
loom
D2 Diode Circuit protection
Lower Control
Boxinsidewire
loom
D3 Diode Circuit protection
Lower Control
Box
F1
15 AMP Circuit
Breaker
Electrical overload protection Chassis Controls
F2 175 AMP Fuse
Overload protection for electric
motor
Chassis Controls
HM
Hour Meter/Low
Voltage indicator
Shows how many hours the
machine has been in use; indicates
low battery voltage.
Chassis Controls
I/O I/O Board
Connection point for machine
function wiring
Control Module
MC Motor Control
Controls the speed of electric
motor
Control Module
MOT Motor Provides power to hydraulic pump Control Module
R1 Motor Relay
Controls the speed of the electric
motor
Control Module
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 Limit Switch Stops lift assembly at lower limit Platform Controls
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
Loading Clearance
Lowering Switch
Allows platform to lower
completely after stopping at
Loading Clearance Height
Platform Controls
S10
Platform Steering
Switch (2)
Control left and right steering
solenoids
Platform Controls
SNSR Tilt Sensor
Activates tilt alarm and disables all
machine functions exceptplatform
lower when the machine is more
than2°outoflevel
Control Module
SOL1
Steering Solenoid
(right)
Shifts steering valve to the left
Hydraulic
Manifold
SOL2
Steering Solenoid
(left)
Shifts steering valve to the right
Hydraulic
Manifold
SOL3
Platform Lift
Solenoid
Raises platform
Hydraulic
Manifold
SOL4 Reverse Solenoid
Shifts forward/reverse valve to
reverse
Hydraulic
Manifold
SOL5 Forward Solenoid
Shifts forward/reverse vavle to
forward
Hyraulic Manifold
SOL6
Depression
Mechanism
Extension Solenoid
Extends depression mechanism
bars
Hydraulic
Manifold
SOL7 Down Solenoid Lowers platform Lift Cylinder
SOL8
Depression
Mechanism
Retraction
Solenoid
Retracts depression mechanism
bars
Depression
Mechanism
cylinder

Upright SL20 Series Specifications

General

Brand	Upright
Model	SL20 Series
Category	Lifting Systems
Language	English