Nilfisk-Advance Advance SC1500 User manual

SC1500
5/2013 Revised 11/2017, Form No. 56043166
English
Service Manual
Advance SC1500 Models: 56104000 (X20D), 56104001 (X20R)
Nilsk SC1500 Models: 56104002 (SC1500-51D)

iiService Manual – SC1500
Contents
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Machine Congurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Service Manual Purpose and Application . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Other Reference Manuals and Information Sources . . . . . . . . . . . . . . . . . . . . 6
Diagnostic and Service Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Parts and Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Modications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Nameplate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Cautions and Warning Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
General Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Prop Rod . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Moving the Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Transporting the Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
General Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Overall Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Fastener Torque Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
General Maintenance Information . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Maintenance Schedule. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Lubrication Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Major Machine Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Machine Controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Key Switch, Emergency Stop and Horn Switch . . . . . . . . . . . . . . . . . . . . 16
Circuit Breakers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Speed and Direction Controls and Indicators. . . . . . . . . . . . . . . . . . . . . .18
Scrub Controls and Indicators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Solution Controls and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Detergent System Controls and Indicators . . . . . . . . . . . . . . . . . . . . . . .20
Burst of Power Switch and Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Vacuum Power Adjustment Switch and Indicators . . . . . . . . . . . . . . . . . . 21
Information Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Battery Status and Charger Screens . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Chassis System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Major Chassis Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Platform Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Control System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Functional Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Component Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Fault Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Fault Code Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
System Disabled by Fault Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Service Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
To Access the Service Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Service Test Mode Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Contents iiiService Manual – SC1500
Programming Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Main Menu Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Submenu Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Deck Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Low Battery Voltage Cutout . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Battery Charger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Burst Of Power Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Detergent (EcoFlex™) Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Chemical Rate Bias . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Open Fault Detect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Display Rev Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Lock Out Brush Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Lock Out Solution Flow Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Backup Alarm Volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Forward Alarm Volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Horn Volume. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Restore Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Fault Recall . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Service Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Extra Information on the Graphic Display . . . . . . . . . . . . . . . . . . . . .38
Frozen Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Panel Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Save Scrub Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Removal and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
A1 Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
E1 Curtis 1210 Speed Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
A1 Control Board Shop Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Electrical System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
On-board Battery Charger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Interlock Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
S.P.E. Charging Proles and Charging Progress . . . . . . . . . . . . . . . . .49
Delta-Q Charging Proles and Charging Progress . . . . . . . . . . . . . . . . 50
Delta-Q Battery Charging Prole Table . . . . . . . . . . . . . . . . . . . . . . . . 50
Component Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
Wiring (Ladder) Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Wiring Harness Diagram (Current). . . . . . . . . . . . . . . . . . . . . . . . . . .57
Wiring Harness Diagram (Legacy) . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Electrical Connector Pin-out Assignments . . . . . . . . . . . . . . . . . . . . . . . . . 59
To Locate and Identify a Connector . . . . . . . . . . . . . . . . . . . . . . . . . . .59
Connector Pin-out Assignment Tables . . . . . . . . . . . . . . . . . . . . . . . . .60
Recovery System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Functional Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66
Circuit Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Vacuum Motor Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Vacuum Motor On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Component Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
General Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Bench-testing the Fly-back Diode (bridge rectier) . . . . . . . . . . . . . . . . . . 72
Removal and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Vacuum Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

Contents ivService Manual – SC1500
Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75
Special Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Scrub System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Functional Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76
Scrub Deck and Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77
20D Scrub Deck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
20R REV™ Deck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Brush Motor Contactor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Deck Actuator Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79
Circuit Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Scrub Brush Motor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81
Scrub Brush Motor Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Scrub Brush Motor On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Deck Actuator Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83
Scrub Deck Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83
Scrub Deck in Vacuum-only Position . . . . . . . . . . . . . . . . . . . . . . . .83
Scrub Deck at Normal Scrub Pressure . . . . . . . . . . . . . . . . . . . . . . . 84
Scrub Deck at Extra Scrub Pressure . . . . . . . . . . . . . . . . . . . . . . . . 84
Component Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Removal and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Scrub Deck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Scrub Deck Actuator Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Scrub Deck Actuator Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94
Solution System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Functional Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .95
Solution Tank, Water Filter and Valves . . . . . . . . . . . . . . . . . . . . . . . . 95
Solution Solenoid Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Detergent System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Circuit Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Solution Solenoid Valve Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . .98
Solution Solenoid Valve On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Detergent Pump On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Detergent Pump Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Component Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Cleaning the Water Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Component Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Nominal Solution Flow Rates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Squeegee System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Functional Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Component Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Steering System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109
Functional Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Component Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

Contents vService Manual – SC1500
Wheel System - Traction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .112
Functional Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Wheel Drive Motor Circuit Descriptions . . . . . . . . . . . . . . . . . . . . . . . 113
Power to the E1 Curtis 1210 Speed Controller. . . . . . . . . . . . . . . . . . 113
Speed Control Drive Functions . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Speed Control Communication with the A1 Control Board . . . . . . . . . . . 115
Component Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Maintenance and Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Speed Control Programming Options . . . . . . . . . . . . . . . . . . . . . . . . . 119
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
General Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
E1 Curtis Speed Controller Diagnostics . . . . . . . . . . . . . . . . . . . . . . . 120
Diagnostics Method A - Graphic Display and Detergent On/Off Indicator . . . 120
Diagnostics Method B - Curtis Programmer . . . . . . . . . . . . . . . . . . . 121
Diagnostic History. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Status LED Fault Code Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Removal and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Drive Wheel Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Drive Wheel Motor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Steering Spindle Bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Drive Wheel Motor Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Replacing the Motor Brushes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Shop Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
E1 Curtis 1210 Speed Controller – Low Current . . . . . . . . . . . . . . . . 130
E1 Curtis 1210 Speed Controller – Output. . . . . . . . . . . . . . . . . . . . 131
General Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Special Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132

6Service Manual – SC1500
General Information
Machine Congurations
The SC1500 machines are battery-powered commercial oor scrubbing machines suitable for use in hotels,
schools, hospitals, factories, shops, ofces, rental businesses and similar applications.
The SC1500 is available in two scrub system congurations:
• The 20D models have a 20” brush plate assembly to accommodate a variety of disc brushes. The 20D
models can also be used with several grades of pads by using the optional pad holder.
• The 20R models have a 20” REV™ scrub system that uses a pad driver for use with REV™ deck pads only.
The machine is powered by either four 6-volt batteries or two 12-volt batteries, connected in series, to
provide 24 VDC to the motors and controls.
Service Manual Purpose and Application
This Service Manual is a technical resource designed to aid service personnel in maintaining and repairing
the Advance SC1500 Scrubbers to ensure optimum performance and long service life. Please read it
thoroughly before servicing your machine.
Revision History
Date Revisions
6/13 Initial publication
7/13 • Revised Scrub Deck Actuator adjustment
• Added manual Revision History table to General Information section
• AddedBridgeRectiertoRecoverySystemSection
11/13 • Fixed PDF bookmark navigation
8/14 • Added information related to Delta-Q IC650 onboard battery charger
• Added new wiring (ladder) diagram
• Added new wiring harness diagram
• WheelSystem,Traction-claricationonparkingbrakeoperation
4/16 • Updates for A1 Control Board
11/17 • Curtis Progrmming; clarify Mode 2 is not used
• Addtorquespecforoatcagemountingscrews
• Modify deck actuator adjustment
Other Reference Manuals and Information Sources
Model Name Model Number Parts List
Form Number Instructions for Use Form Number
Advance SC1500 56104000, 56104001 56042591 56091047 - English, Español,
Français Português
NilskSC1500 56104002 (SC1500-51D) 56042592
These manuals can be found on the following Nilsk-Advance’s electronic supported databases:
• Nilsk-Advance Dealer Customer Zone
• Advance website: www.advance-us.com
• Nilsk website: www.nilsk.com
• EzParts service/parts CD-ROM

General Information 7Service Manual – SC1500
Diagnostic and Service Tools
In addition to a full set of metric and standard tools, the following items are required in order to successfully
and quickly perform troubleshooting and repair of Advance commercial oor cleaning equipment.
• Digital voltmeter (DVM) with DC current clamp
• Hydrometer
• Battery load tester for checking batteries
• Set of torque wrenches
These tools are also available from Nilsk-Advance, Inc.:
• Curtis 1311 hand held programmer, p/n 56409441,
• Vacuum water lift gauge, p/n 56205281.
Conventions
All references to right, left, front and rear in this manual are as seen from the Operator’s position.
Parts and Service
Repairs should be performed by an Authorized Advance Service Center that employs factory-trained service
personnel and maintains an inventory of Advance original replacement parts and accessories.
Call the Advance Dealer named below for repair parts or service. Please specify the Model Number (same as
the Part Number) and Serial Number when discussing your machine.
Modications
Modications and additions to the cleaning machine which affect capacity and safe operation shall not be
performed by the customer or user without prior written approval from Nilsk-Advance Inc. Unapproved
modications will void the machine warranty and make the customer liable for any resulting accidents.
Nameplate
The Model Number (Part No.) and Serial Number of the machine
are shown on the Nameplate located on the inside of the battery
compartment.
This information is needed when ordering repair parts for the
machine.

General Information 8Service Manual – SC1500
Cautions and Warning Symbols
Nilsk-Advance uses the symbols below to signal potentially dangerous conditions. Read this information
carefully and take the necessary steps to protect personnel and property.
Danger! Is used to warn of immediate hazards that will cause severe personal injury or death.
Warning! Is used to call attention to a situation that could cause severe personal injury.
Caution! Is used to call attention to a situation that could cause minor personal injury or damage to
the machine or other property.
Read all instructions before using.
General Safety Instructions
Specic Cautions and Warnings are included to warn you of potential danger of machine damage or bodily
harm. This machine is for commercial use, for example in hotels, schools, hospitals, factories, shops and
ofces other than normal residential housekeeping purposes.
Warning! Be sure to follow these safety precautions to avoid situations that could cause severe
personal injury.
• This machine should only be used by properly-trained and authorized personnel.
• This machine is not intended for use by persons (including children) with reduced physical,
sensory or mental capabilities, or lack of experience and knowledge.
• Avoid sudden stops when on ramps or inclines. Avoid abrupt sharp turns. Use low speed down
ramps.
• Observe the Gross Vehicle Weight, GVW, of the machine when loading, driving, lifting or
supporting the machine.
• Keep sparks, ame and smoking materials away from batteries. Explosive gases are vented
during normal operation.
• Charging the batteries produces highly-explosive hydrogen gas. Charge the batteries only in
well-ventilated areas away from open ame. Do not smoke while charging the batteries.
• Remove all jewelry when working near electrical components.
• Turn the Key Switch off (O) and disconnect the batteries before servicing electrical components.
• Never work underneath a machine without safety blocks or stands to support the machine.
• Do not dispense ammable cleaning agents, operate the machine on or near these agents, or
operate in areas where ammable liquids exist.
• Only use the brushes provided with the machine or those specied in the Instructions for Use.
The use of other brushes may impair safety.
• Do not clean this machine with a pressure washer.

General Information 9Service Manual – SC1500
Caution! Be sure to follow these safety precautions to avoid situations that could cause personal
injury, damage to property or equipment damage.
• This machine is not approved for use on public paths or roads.
• This machine is not suitable for picking up hazardous dust.
• Do not use scarier discs and grinding stones. Advance will not be held responsible for any
damage to oor surfaces caused by scariers or grinding stones (can also cause damage to the
brush drive system).
• When operating this machine, ensure that individuals in close proximity, particularly children,
are not endangered.
• Before performing any service function, carefully read all instructions pertaining to that
function.
• Do not leave the machine unattended without rst turning the Key Switch off (O), removing the
key and applying the parking brake.
• Turn the Key Switch off (O) and remove the key before changing the brushes, and before
opening any access panels.
• Take precautions to prevent hair, jewelry or loose clothing from becoming caught in moving
parts.
• Use caution when moving this machine in below-freezing temperature conditions. Any water in
the solution, recovery or detergent tanks, or in the hose lines could freeze, causing damage to
valves and ttings. Flush with windshield washer uid.
• The batteries must be removed from the machine before the machine is scrapped. The disposal
of the batteries should be safely done in accordance with your local environmental regulations.
• Do not use on surfaces having a gradient exceeding that marked on the machine.
• All doors and covers are to be positioned as indicated in the Instructions for Use before using
the machine.
• This machine should only be used and stored indoors.
Caution! Do not clean this machine with a pressure washer.

General Information 10Service Manual – SC1500
Prop Rod
To prevent the Control Panel Housing / Recovery
Tank Cover from dropping unexpectedly and
causing injury, always engage the Prop Rod as
shown before working under the Panel Housing
/ Recovery Tank Cover.
Moving the Machine
The drive wheel motor has a built-in
electromagnetic brake that engages whenever
the Key Switch is Off or the Go Pedal is
released. You can manually override this
brake if necessary by reaching up around the
back of the front drive wheel and rotating the
Brake Arm up as shown. This should only be
done if you need to push or pull the machine.
Remember to reengage the Brake Arm once you
nish moving the machine.
Note: Turn the drive wheel 45° to the right
for easier access to the Brake Arm.
Control Panel
Housing/
Recovery
Tank Cover
Prop Rod
(engaged)
Brake
Arm
Brake
Arm

General Information 11Service Manual – SC1500
Transporting the Machine
Caution! Before transporting the machine on an open truck or trailer, make sure:
• Alltanksareempty.
• Therecoverytankcoverislatchedsecurely.
• Themachineistieddownsecurely.(RefertotheTie-downLocationsbelow.
• Themachine’selectromagneticbrakeisengaged(notmanuallyoverridden).
Specications
General Specications
Model SC1500-X20D SC1500-X20R
Model No. 56104000 56104001
Battery Voltage 24V
Battery Capacity - Amp Hours 260
Protection Grade IPX3
Sound Pressure Level IEC 60335-2-72: 2002 Amend.
1:2005, ISO 11201 dB(A) 63 dB LpA, ±3 dB KpA 62 dB LpA, ±3 dB KpA
Gross Vehicle Weight (w/full solution tank, empty
recovery tank, heaviest batteries, no Operator 718 lbs / 326 kg
Net Weight ((w/empty solution and recovery tanks, no
batteries or brushes 354 lbs / 161 kg
Maximum Operator/Rider Weight 250 lbs / 113.4 kg
Scrub Deck Width 20 in / 50.8 cm
Squeegee Width 26.5 in / 67.3 cm
Tank Capacities Solution Tank: 11.7 gal / 44.28 L
Recovery Tank: 13.5 gal / 46.67 L
Static Wheel Loading with 179 lb. rider Front: 362 lbs / 164 kg Rear: 275 lbs / 125 kg
Static Wheel Pressure with 175 lb. rider Front: 116 psi / 8.2 kg/cm2Rear: 139 psi / 9.8 kg/cm2
Sound Pressure Level (IEC 60704-1)TR12116 63.33 dB(A)/.029344 µPa
Vibrations at the Hand Controls (ISO 5349-1) <.5 m/s2
Vibrations at the Seat (EN 1032) <2.5 m/s2
Gradeability Transport: 14.5 percent / 8.2 degrees
Cleaning: 8.0 percent / 4.5 degrees
Front
Tie-down
Left
Tie-down Right
Tie-down

General Information 12Service Manual – SC1500
Overall Dimensions
Fastener Torque Specications
Standard Torque
Specications (unless
otherwise specied)
Size Plated Steel Stainless Steel
#10 42 in.-lb. [4.75 N-m] 28 in.-lb. [3.17 N-m]
1/4“ 100 in.-lb. [11.3 N-m] 67 in.-lb. [7.57 N-m]
5/16” 17 ft.-lb. [23.05 N-m] 11 ft.-lb. [14.91 N-m]
3/8” 31 ft.-lb. [42.03 N-m] 20 ft.-lb. [27.12 N-m]
1/2” 75 ft.-lb. [101.69 N-m] 50 ft.-lb. [67.79 N-m]
3/4” 270 ft.-lb. [366.07 N-m] 180 ft.-lb. [244.05 N-m]
M5 61 in.-lb. [6.89 N-m] 36 in.-lb. [4.07 N-m]
M6 9 ft.-lb. [12.2 N-m] 62 in.-lb. [7.0 N-m]
M8 22 ft.-lb. [29.83 N-m] 13 ft.-lb. [17.63 N-m]
M10 44 ft.-lb. [59.66 N-m] 25 ft.-lb. [33.9 N-m]
M12 70 ft.-lb. [94.91 N-m] 40 ft.-lb. [54.23 N-m]
24.5
[623]
27.9
[710]
52.5
[1332]
48.5
[1232]
1.13
[28,7]
48.5” [123,2 cm] 24.5” [62,2 cm]
52.5”
[133,4 cm]
27.9” [70,9 cm]
1.13”
[28,7 mm]

General Information 13Service Manual – SC1500
Maintenance
General Maintenance Information
Keep the machine in top condition by closely following the maintenance schedule. Maintenance intervals
given are for average operating conditions. Machines used in severe environments may require service more
often.
Caution! Donotpressure-washthemachine
Maintenance Schedule
Maintenance Item Daily Weekly Monthly Yearly
Charge Batteries X
Check/Clean Tanks & Hoses X
Check/Clean the Brushes/Pads X
Check/Clean the Squeegee X
Check/Clean Vacuum Shutoff Float X
Empty/Clean Debris Catch Tray in Recovery Tank X
Check Each Battery Cell(s) Water Level X
Inspect Scrub Housing Skirt X
Inspect and Clean Solution Filter X
Purge Detergent System X
Lubricate Machine X
* Check Carbon Brushes X
** Replace vibration damping isolators (REV model only) X
* Have an Authorized Advance Service Center check the vacuum motor carbon motor brushes once a year or
after 300 operating hours. The brush and drive motor carbon brushes should be checked every 500 hours
or once a year.
** This maintenance procedure must be performed by an authorized Advance Service Center.

General Information 14Service Manual – SC1500
Lubrication Locations
• Once a month apply Lubriplate® 730-2 or equivalent grease to, or grease the tting on, the following
components. Avoid using too much grease.
• Hex Shaft/Steering Tube Assembly
• Drive Wheel Chain
• Drive Chain Idler Sprocket (grease tting)
• Steering Chain
• Once a month apply light machine oil to the Upper and Lower Steering Shaft Universal Joints.
Upper
Steering
Shaft
U-Joint
Steering
Tube
Assembly
Hex
Shaft
Lower Steering
Shaft U-Joint
Drive
Wheel
Chain
Drive Chain
Idler
Sprocket
(grease
tting)
Steering
Chain

General Information 15Service Manual – SC1500
Major Machine Components
Electrical
System
Recovery
System
Solution
System
Chassis
System
Squeegee
Assembly
Scrub
System - 20D
Scrub
System - REV
Control
System

General Information 16Service Manual – SC1500
Machine Controls
Key Switch, Emergency Stop and Horn Switch
• Key Switch – controls the battery power to the machine.
Note that you must turn the Key Switch to the on (I)
position before stepping onto the machine platform.
• Emergency Stop – shuts off all battery power to the
machine when pressed. To reset the Emergency Stop, rotate
the red knob clockwise.
• Horn Switch – sounds the horn when pressed.
Key
Switch
Emergency
Stop
Horn
Switch

General Information 17Service Manual – SC1500
Circuit Breakers
The Circuit Breakers are mounted on the top of the control panel. To reset a Circuit Breaker, press the
corresponding reset button
• 50-amp Circuit Breaker – labeled CB1 in the
Ladder Diagram; controls the positive voltage
to the E1 Curtis 1210 Speed Controller.
• 5-amp Circuit Breaker – labeled CB2 in the
Ladder Diagram; controls the positive voltage
to the key switch and to the battery positive
inputs J3-1 and J3-8 on the A1 Control Board.
• 20-amp Circuit Breaker – labeled CB3 in the
Ladder Diagram; controls the positive voltage
to the contacts on solid state relay K1. Relay
K1 controls the positive voltage to the vacuum
motor, M4.
• 25-amp Circuit Breaker – labeled CB4 in the
Ladder Diagram; controls the positive voltage
to the contacts on relay K2. Relay K2 controls
the positive voltage to the brush motor, M5/M6.
50-amp
Circuit
Breaker CB1
5-amp
Circuit
Breaker CB2
20-amp
Circuit
Breaker CB3
25-amp
Circuit
Breaker CB4

General Information 18Service Manual – SC1500
Speed and Direction Controls and Indicators
• The Speed Adjustment Knob – labeled R1 in the Ladder Diagram;
100K potentiometer that controls the machine speed in both
forward and reverse.
• The Forward and Reverse Drive Switches select the direction the machine will move when the Go Pedal is
pressed. The corresponding Drive Indicator will light when a Drive Switch is selected.
• Forward Drive Switch – selects the forward direction.
• Forward Drive Indicator – lights to indicate that the
Forward Drive Switch has been selected. Note that this
indicator is lighted in the adjacent drawing.
• Reverse Drive Switch – selects the reverse direction.
• Reverse Drive Indicator – lights to indicate that the
Reverse Drive Switch has been selected.
• Operator Presence Pedal – ensures
that the Operator is standing on
the Platform before the Go Pedal
will drive the machine forward or
reverse.
• Go Pedal – drives the machine in
the direction selected with the
Forward Drive or Reverse Drive
Switches.
Speed
Adjustment
Knob R1
Forward
Drive Switch
Forward Drive
Indicator
Reverse
Drive Switch
Reverse Drive
Indicator
Operator
Presence
Pedal
Platform
Go
Pedal

General Information 19Service Manual – SC1500
Scrub Controls and Indicators
Note: Thescrubpressure,recoveryvacuumpower,solutionowrateanddetergentstrength
settings that will be in effect when the One-touch™Scrub On/Off Switch is pressed is
determined by the Save Scrub Settings submenu in the Programming Options.
• IfSAVE SCRUB SETTINGS/YES is selected, the machine will use the scrub settings that
were in use when the key switch was switched off.
• IfSAVE SCRUB SETTINGS/NO is selected, the machine will use the default settings.
(Refer to the Save Scrub Settings subsection in the Control System section.)
• One-touch™Scrub On/Off Switch – lowers the scrub deck and
squeegee to the oor and enables the scrub, vacuum, solution
and detergent systems. The scrub motor, solution system,
detergent pump and vacuum motor will start when you press
the Go Pedal.
• Scrub On/Off Indicator – lights to indicate that the scrub system
is active.
• Extra Pressure Switch – toggles the scrub pressure
between standard pressure (bottom box lled as
shown) and extra pressure (both top and bottom
boxes lled).
• Extra Pressure Indicator – lights to indicate that the
scrub system is active.
• Scrub Brush Pressure Bar Graph – displays the
scrub pressure on the graphic display as follows:
• Bottom box lled – standard scrub pressure (as
shown).
• Top and bottom boxes lled – extra scrub
pressure.
Solution Controls and Indicators
• Solution Flow Adjustment Switch – functions as follows:
• When the scrub system is enabled, pressing the Solution
Flow Adjustment Switch will cycle the solution ow rates from
low (bottom box lled as shown), to medium (bottom two
boxes lled), to high (all three boxes lled), then to off (no
boxes lled).
• When the scrub system is not enabled (machine in transport
mode), pressing and holding the Solution Flow Adjustment
Switch will dispense solution at the high ow rate to pre-wet
the oor. The solution will continue to dispense as long as
the Solution Flow Adjustment Switch is pressed.
• Solution On/Off Indicator – lights to indicate that the solution system is active.
• Solution Flow Rate Bar Graph – displays the solution ow rate on the graphic display as follows:
• Bottom box lled – low solution ow rate (as shown).
• Bottom two boxes lled – medium solution ow rate.
• All three boxes lled – high solution ow rate.
• All three boxes empty – solution system off.
Scrub On/Off
Indicator
One-touch™
Scrub On/Off
Switch
Scrub
Pressure
Bar Graph
Extra
Pressure
Indicator
Extra
Pressure
Switch
Solution
Flow Adjustment
Switch
Solution On/Off
Indicator
Solution
Flow Rate
Bar Graph

General Information 20Service Manual – SC1500
Detergent System Controls and Indicators
• Detergent Strength Switch – functions as follows:
• When the scrub system is enabled, pressing
the Detergent Strength Switch will cycle the
detergent ow rate from weak (bottom box
lled as shown), to strong (top and bottom
boxes lled), then to off (no boxes lled).
• When the scrub system is not enabled
(machine in transport mode), pressing
and holding the Detergent Strength Switch
and Solution Flow Adjustment Switch
simultaneously will enable the purge mode.
• Detergent On/Off Indicator – indicates that the detergent ow rate is a rate other than zero.
• Detergent Indicator Bar Graph – displays the detergent ow rate, ratio and percentage on the graphic
display as follows:
• Bottom box lled – weak detergent ow rate (as shown).
• Top and bottom boxes lled – strong detergent ow rate.
• Both boxes empty – detergent system off.
• Detergent Purge Screen – displays the Chemical Purge Icon to
indicate that the detergent purge cycle is active. To start
the purge cycle and display the Detergent Purge Screen, press
and hold the Detergent Strength Switch and the Solution Flow
Adjustment Switch simultaneously for three seconds. The
Detergent On/Off Indicator will ash and the purge cycle will last
for approximately 10 seconds.
Burst of Power Switch and Indicator
• Burst of Power Switch – temporarily overrides the current machine
settings to increase the machine’s cleaning aggressiveness by
performing the following:
• Increases the scrub pressure from standard pressure to extra
pressure.
• Increases the solution ow rate by one level (off to low, low to
medium or medium to high).
• Increases the detergent ow rate to the strong level (off to
weak or weak to strong). Note that this will only happen if the
detergent option is installed.
• Increases the vacuum power from low/quiet to high/standard. Note that the vacuum motor will not
switch from off to low/quiet because of the assumption that if the vacuum is off, the user must be in
double-scrubbing mode and wishes to stay in that mode.
If any one of the functions listed above is already performing at its maximum possible rate, the Burst of
Power Switch will have no effect on that function but will still affect the other functions. If the detergent
option is not installed, the Burst of Power will not affect detergent ow but will still affect the other
functions.
Detergent
Indicator
Bar Graph
Detergent On/Off
Indicator
Detergent
Strength Switch
Chemical
Purge
Icon
Detergent Purge Screen
Burst of Power
Indicator
Burst of
Power Switch