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® SpeedScrub Rider Service Featuring Information ® and Hygenic Tanks 331145 Rev. 00 *331145*...
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D The machine is maintained with NOBLES supplied or approved parts. Manual Number -- 331145 Revision: 00 Published: 12--04 Nobles and the FaST Foam Scrubbing Technology logo are United States registered trademarks of Tennant Company. Copyright E 2004 NOBLES, Printed in U.S.A.
Table of Contents Electrical Troubleshooting Information ..................1 Commonly Used Electrical Symbols & Terms................ 2 Ladder Schematic ........................3 Wire Harness Group....................... 5 Key OFF, Operator NOT on Seat................... 9 Key OFF, Battery Charger Plugged In ................. 10 Key ON, Operator on Seat ....................11 Tank Level Sensors......................
Speed Scrub ELECTRICAL Troubleshooting Information BEFORE CONDUCTING TESTS: * Read and Follow ALL Safety Warnings and Precautions in Operator's Manual * Always use an ESD (Electrostatic Discharge) strap when working near the Control Board * Be cautious when working near Control Board – Battery voltage is always present, even with Key OFF * Always unplug Positive Battery Cable when removing or replacing components...
Commonly Used Electrical Symbols & Terms NOTE: The term “NORMALLY” refers to the components’ “at rest” or “de-energized” position Wires Not Plug-in Wires Connected Battery Circuit Breaker Fuse Connected Together Connection Together Normally Open Normally Open Normally Closed Normally Open Normally Closed Indicates Movement Switch...
Speed Scrub – Horn & Hour Meter Systems key ON, operator on seat, in motion OR Vacuum Fan running (for Hour Meter) CONDITIONS: 6 VDC 6 VDC 6 VDC 6 VDC 1 RED 13 BLK STANDOFF 4 CONTROL BOARD EMERGENCY STOP SWITCH 1 RED 1 RED...
Speed Scrub – Scrub Head & Squeegee Actuator Systems (page 1 of 2) key ON, operator on seat, forward travel, propel pedal depressed, One Step Scrub Button pressed CONDITIONS: 6 VDC 6 VDC 6 VDC 6 VDC 1 RED 13 BLK STANDOFF 4 CONTROL BOARD EMERGENCY...
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Speed Scrub – Scrub Head & Squeegee Actuator Systems (page 2 of 2) Actuator Voltage Data Actuator Travel Direction Wire # Color Polarity Notes − Purple Voltage at actuator connector will be DOWN "+" Gray approx. 24 VDC for 2 seconds, then Squeegee approx.
Speed Scrub – Operational Modes & Interlocks Mode Entry Sequence Indicator Function −Directional Switch Forward −Directional Switch in Forward position Forward Forward movement of machine −Propel Pedal Depressed −Directional Switch Reverse −Directional Switch in Reverse position Reverse Reverse movement of machine −Horn Sounding continuously ON &...
Speed Scrub – Diagnostic & Fault Alarms Alarm Codes Directional Mode Entry Sequence Alarm Sequence Function Switch Alerts nearby persons of machine backward movement (Note: Back- Directional switch Back-Up Alarm REVERSE up alarm will not sound when Horn sounds beep cycle (repeats) placed in REVERSE machine is placed in "Hospital"...
Speed Scrub – Diagnostic & Configuration Modes Mode Entry Sequence Indicator Function Upper Brush Pressure LED blinks Tens of days of month, Upper Solution Flow LED blinks Single day of month Display Press and hold One Step Middle Brush Pressure LED blinks Tens of Software Button, turn key switch ON, Blinking Brush Pressure and Solution...
Speed Scrub – Display Software Revision Mode TO ENTER: • Press and hold One Step Button • Turn key switch ON, wait 10 seconds • Release One Step Button READING THE SOFTWARE REVISION: •Upper Brush Pressure LED blinks TENS of DAYS of MONTH, Upper Solution Flow LED blinks SINGLE DAY of MONTH •Middle Brush Pressure LED blinks TENS of MONTH, Middle Solution Flow LED blinks SINGLE MONTH...
Speed Scrub – Self Test Mode TO ENTER: • Press and hold FaST & Vacuum Fan/Squeegee Buttons • Turn key switch ON, wait 10 seconds • Release Buttons • The entire Self Test takes approximately 40 seconds AFTER THE SELF TEST IS COMPLETE: •...
Speed Scrub – Propel/Brake Diagnostics TO ENTER: • Press and hold FaST & Increase Brush Pressure (+) Buttons • Turn key switch ON • Release Buttons after FaST LED (if in Forward) or Vacuum Fan/Squeegee LED (if in Reverse) is lit TEST ACTION INDICATOR...
Torque Standard Wheel Bolt and Nuts Stud or Bolt Size Recommended Torque in and Thread Foot Pounds 7/16---20 75---85 1/2---20 75---85 9/16---18 80---90 5/8---18 140---170 Wheel Bearing Adjustment 1. Tighten the spindle nut to 12 ft lbs while turning the wheel assembly forward by hand to fully seat the bearings.
Tightening Nuts on Tapered Shafts +.0010 +0,025 .3730 -- .00000 /9,474 -- 0 1”-- 20 UNEF-- 2B SLOTTED KEY WIDTH HEX LOCKNUT PER SAE J-- 501 (EXCEPT 1.50/38,1 ACROSS FLATS). RECOMMENDED TOQUE TO Example of 175 FT LB PLUS TORQUE recommended REQUIRED TO ALIGN SLOTTED NUT TO SHAFT...
Taper Lock Bushings IMPORTANT: Follow all these instructions carefully. This is necessary to insure satisfactory performance. 1008 to 3030 To Install 1. Clean shaft, bore and outside of bushing, and hub bore of all oil, lacquer, and dirt. 2. Insert bushing in hub. Match the hole pattern, not threaded holes (each hole will be threaded on one side only).
Sequence Tightening On some assemblies, it is advisable to use a crisscross pattern. Always avoid starting in one spot and tightening one after another in a row. Remember that the object is to tighten the parts in such a manner that even stress is set up throughout, at the same time allowing the parts to be drawn together so that their mating surfaces will contact.
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