Clarke Clean Track® L24 56317170 Service Manual page 3

Scrub System ......................................................................................................28
Functional Overview .........................................................................................28
Circuit Overview - Scrub Brush Motor M4 and M5 Run Function ..................... 28
M3 - Scrub Brush Actuator Lift Motor Function ................................................ 30
Scrub System Low-voltage Cut-out Function ................................................... 30
Scrub Brush Deck Removal .............................................................................31
Scrub Brush Motor Removal ............................................................................33
Scrub Brush Belt Replacement ........................................................................33
Scrub Brush System Maintenance ................................................................... 34
Scrub Brush Lift Actuator Removal .................................................................. 34
Recovery System.................................................................................................37
Functional Overview .........................................................................................37
Vacuum Motor Control Circuit Overview (Auto Mode) ..................................... 38
Vacuum / Recovery System Service Maintenance Checklist ........................... 40
Troubleshooting Guide .....................................................................................40
Vacuum Leaks ...............................................................................................40
Restrictions ...................................................................................................40
Maintenance of Recovery Tank Float Switch.................................................... 41
Maintenance of the Vacuum Motor Inlet Screens ............................................. 42
Spray Nozzle Maintenance ..............................................................................42
Vacuum Shoe Maintenance..............................................................................43
Vacuum Motor Removal ...................................................................................44
Recovery Tank Removal...................................................................................44
Caster Wheel Removal ....................................................................................46
Wheel Drive System ............................................................................................47
General Functional Overview ...........................................................................47
Drive Motor System Function ...........................................................................48
Electrical Diagram .........................................................................................48
A1 Speed Control Pin Connections .................................................................. 49
Low Current A1 Speed Control Pin Key Detail .............................................. 49
Wheel Drive Troubleshooting Guide ................................................................. 50
Drive Motor Transaxle Removal .......................................................................51
Drive Motor Transaxle Removal (continued) .................................................... 52
Drive Wheel Removal .......................................................................................53
5K Directional/Throttle Potentiometer (R1) ...................................................... 54
Testing the 5K Directional/Throttle Potentiometer R1 ................................... 54
Removing the R1 5K Potentiometer .............................................................. 55
Installing and Adjusting the R1 5K Potentiometer ......................................... 55
100K Potentiometer (R2) ..................................................................................56
Test Procedure ..............................................................................................56
R2 Potentiometer Removal ...........................................................................56
Form No. 56043161 - Clean Track
L24 - iii
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