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Advance acoustic Convertamatic 24C, Service Manual

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Advance acoustic Convertamatic 24C Service Manual Download Page 38

36

 - FORM NO. 56043098 - Convertamatic

™ 

24C, 24D, 26C, 26D, 28C, 28D

SQUEEGEE SYSTEM
CASTER WHEEL REMOVAL

 WARNING!

Disconnect the battery pack connector before servicing machine.

 WARNING!

Never work under machine without safety stands or blocking to support the machine.

1 

Drain both the solution and recovery tanks.  Remove the squeegee assembly and have the scrub deck in the up (stored) position with the scrub brushes 
installed.

2 

See Figure 4.

  Place Wood Blocking 

(G)

 in front of the drive wheels to prevent the machine from rolling.

3 

Jack the machine in the location shown until the caster wheel is approximately 1” off the ground.

4 Place 

Blocking 

(H)

 under the chassis tab as shown.

5 

Remove the (4) Screws, Nuts & Washers 

(I)

 then remove the Caster Assembly 

(J)

. 

6 

Reinstall in reverse order.

FIGURE 4

Summary of Contents for Convertamatic 24C

Page 1: ...vertamatic 24C 26C 28C Service Manual Advance Models 56315000 24D C 56315001 26D 56315002 28D 56315003 24C C 56315004 28D C 56315005 28C C 56315006 X24D C 56315007 X24C C 56315008 26D C 56315009 X26D...

Page 2: ......

Page 3: ...COVERY TANK FLOAT SWITCHES 29 MAINTENANCE OF VACUUM MOTOR INLET SCREEN 30 VACUUM MOTOR REMOVAL 31 RECOVERY TANK REMOVAL 32 SQUEEGEE SYSTEM 33 36 SQUEEGEE LIFT LINKAGE ADJUSTMENT 33 SERVICING THE SQUEE...

Page 4: ...air parts for the machine Use the space below to note the Model Number and Serial Number of your machine for future reference MODEL NUMBER ______________________________________________ SERIAL NUMBER...

Page 5: ...ds exist Do not clean this machine with a pressure washer Do not operate this machine on ramps or inclines of more than a 2 percent gradient Only use the brushes provided with the appliance or those s...

Page 6: ...hr 1719 m hr 1598 m hr 1598 m hr 1719 m hr Scrub Head Size Type 2 12 in 30 5 cm brushes or pad holders 2 13 in 33 cm brushes or pad holders 2 14 in 35 5 cm brushes or pad holders 2 23 in 58 cm brushe...

Page 7: ...FORM NO 56043098 Convertamatic 24C 24D 26C 26D 28C 28D 5 SPECIFICATIONS...

Page 8: ...every 500 hours or once a year WARNING Turn the key switch off and disconnect the batteries before servicing the machine Check vacuum motor carbon brushes Qty 2 once a year or after 300 operating hou...

Page 9: ...ts OK Defect Codes circle Does Not Work 10 Scrub Brushes check for wear and rotate D M W 11 Scrub Brush Motor s check for carbon brush wear 500 Hours B C W 12 Scrub Brush Motor s check gearboxes disc...

Page 10: ...ry to pinpoint the location of an item mentioned in the text NOTE Refer to the service manual for detailed explanations of each item illustrated on the next 3 pages 1 Solution Tank Fill 2 Operator Con...

Page 11: ...mb Nut 21 Squeegee Adjustment Knob 22 Recovery Tank Drain Hose 23 Debris Hopper Cylindrical Models Only 24 Idler Assembly Cylindrical Models Only 25 Battery Pack Connector non onboard charger models o...

Page 12: ...ch C Vacuum Switch D Display Panel Solution Flow Indicator AXP Indicator Hour Meter Battery Indicator Scrub Pressure Indicator Recovery Tank FULL Indicator Fault Indicator E Wand Switch Dealer Install...

Page 13: ...the scrub pressure will increase to the heavy scrub mode If the switch is held for 5 seconds the pressure will change to the extreme scrub mode At the same time the panel display will show the correct...

Page 14: ...vy scrub mode and the machine is moving in either direction This indicator will be off if the scrub system has been turned OFF Extreme Scrub ON Indicators K L Both of these indicators will be yellow i...

Page 15: ...rical Diagram Figure 2 The electrical circuit that turns on energizes the solenoid coil and water pump is activated through the A1 control panel s solution switch button input and the FWD REV A2 Speed...

Page 16: ...n enabled Anegative voltage output from theA2 speed controller s pin 6 Red Blk wire to theA1 control board Red Blk wire terminal J1 5 Note TheA2 speed controls brake output pin 6 occurs whenever the R...

Page 17: ...sis panel No tools are needed to remove the filter hand tighten only Service Tip The solution filter ball valve must be placed in the OFF Closed position This prevents loss of solution when servicing...

Page 18: ...GUIDE ELECTRICAL Possible Symptoms 1 No solution flow while in the scrub auto solution mode 2 Solution Pump will not operate SYMPTOM ONE Note Activate the Service Test Mode Program See optional progra...

Page 19: ...C 26D 28C 28D 17 SOLUTION SYSTEM TROUBLESHOOTING GUIDE ELECTRICAL CONTINUED SYMPTOM TWO Note Activate the Service Test Mode Program See optional program section for instructions All testing will be pe...

Page 20: ...he inlet Hose Clamps D that secure the hoses to the valve body 6 Separate pry the solution outlet hose off from its valve body barbed fitting 7 Remove the 2 Hex Screws E that secure the valve to the M...

Page 21: ...om the machine FIGURE 4 SOLUTION PUMP REMOVAL 1 Drain the solution tank or turn the solution filter ball valve to the off position to prevent solution loss 2 See Figure 4 Loosen the 2 Hose Clamps P an...

Page 22: ...ing A negative voltage output from the A1 board s terminal J1 14 Vio Blk wire completes the K1 solenoid coil circuit Pos Neg and pulls in the load contact making the brush motors run The Neg M2 and M3...

Page 23: ...When K1 is de energized the neg voltage from the K3 relay is connected to the Brush Motors Positive Wht wires through a Red Wht jumper wire connected to the K1 N C With two battery ground inputs at t...

Page 24: ...LIFT ACTUATOR REMOVAL DISC 1 With scrub brushes installed lower the scrub deck turn the key off and disconnect the battery pack Note If the lift actuator motor will not run go to step 2 and perform t...

Page 25: ...ve the 3 E Hex Screws from the flexible coupler that attaches the brush holder to the drive Hub F of the Motor Gearbox Assembly you want to remove 5 Remove the 1 Hex Screw G that secures the Hub F to...

Page 26: ...solution delivery trough on top of the scrub deck weekly 3 Clean built up dirt from the inside of the scrub brush housing weekly 4 Remove any string wrapped around the scrub brush drive hub and idler...

Page 27: ...FORM NO 56043098 Convertamatic 24C 24D 26C 26D 28C 28D 25 FIGURE 4 SCRUB SYSTEM...

Page 28: ...ion to lift the wastewater off of the floor The air and wastewater move through the squeegee hose at high speed until it reaches the recovery tank There the air slows down because of the increased vol...

Page 29: ...eel drive motor in Fwd or Rev The recovery tank float switch S4 must be closed in order for a negative voltage output from the A1 board s terminal J1 12 Blk Yel wire to complete the K2 solenoid coil c...

Page 30: ...ecovery tank drain hose cap seals airtight TROUBLESHOOTING GUIDE If water flows around the ends of the squeegee tool instead of being pulled into the tool the vacuum system is not working properly Whe...

Page 31: ...en the tank is full Dirty extended scrub system switches can prevent the optional extended scrub system from functioning properly If daily rinsing of the recovery tank does not suffice to keep the swi...

Page 32: ...UM MOTOR INLET SCREEN The Vacuum Motor Inlet Screen 4 should be cleaned on a daily basis DO NOT run water down the screen in an attempt to clean it If you do this you will be running water directly in...

Page 33: ...emove the vacuum motor Shroud Cover A secured to the bottom of the recovery tank qty 4 screws 5 Loosen the exhaust hose clamp and remove Hose B from the vacuum motor discharge tube and completely remo...

Page 34: ...TE Disconnect any other options installed on the tank 2 See Figure 6 Remove the Screw F and Tank Cable G and allow the tank to swing down to the side of the battery compartment box 3 Remove the Recove...

Page 35: ...e adjustable To adjust 1 Lower the squeegee assembly to the floor 2 See Figure 1 The Squeegee Mount Bracket has 3 Mount Holes A for changing the lift cable length 3 Remove the Hardware Items B from th...

Page 36: ...rse or Replace the Front Squeegee Blade 1 Raise the squeegee tool off the floor loosen the 2 Thumb Nuts 20 disconnect the Recovery Hose 28 and remove the Squeegee Assembly 12 from the mount 2 Remove b...

Page 37: ...he machine 2 Lower the Squeegee Lever 15 and disconnect the Squeegee Lift Cable C from the squeegee mount bracket 3 Refer to Caster Wheel Removal section to remove the rear Caster D 3 Remove Screw E a...

Page 38: ...recovery tanks Remove the squeegee assembly and have the scrub deck in the up stored position with the scrub brushes installed 2 See Figure 4 Place Wood Blocking G in front of the drive wheels to prev...

Page 39: ...circuits operational powering it up The F3 circuit breaker 30 Amp supplies the positive load circuit voltage input to the B controller terminal Wht Yel wire The black wire from the battery negative s...

Page 40: ...K BLK ORN BLU ORN BLU BLU BLK BRN WHT BLU BLK BRN WHT BLK FOR REV REVERSE J1 5 A2 B B 1210SPEEDCONTROLLER M1 M2 PIN3 POT HI PIN4 POT WIPER PIN13 POT LO PIN5 KSI PIN16 REV PIN6 BRAKE 1228FOR36V STATUS...

Page 41: ...oller logic circuits 6 Red Blk Auxiliary Driver Battery output to main controller E1 to turn on activate all auto scrub functions 7 Open not used 8 Open not used 9 Orn Blu Status Fault Speed controlle...

Page 42: ...or replace motor Defective Throttle Potentiometer R1 replace Wheel drive in one direction only loss of either forward or reverse Test the Fwd Rev R1 wiring outputs pins 3 4 13 at the speed control for...

Page 43: ...cing machine WARNING Never work under machine without safety stands or blocking to support the machine 1 Drain both the solution and recovery tanks and remove the squeegee 2 Remove the Scrub deck by f...

Page 44: ...chine from this location until the drive wheels are approximately 1 off the ground 5 Remove the 8 Locknuts A and then remove the 2 Drive Wheels B from the transaxle 6 Disconnect the drive motor wiring...

Page 45: ...e without safety stands or blocking to support the machine 1 Remove the squeegee and place wood blocking in front and rear of the opposite drive wheel that you are removing to prevent the machine from...

Page 46: ...wiper and outside rear 1 low Fwd reading 2 420 ohms to 4 700 ohms Rev 2 420 ohms to 230 ohms 5 Testing Summary The above tests are to show the increase and decrease of the pot through its working ran...

Page 47: ...icing Note The potentiometer pot doesn t have to be removed from the drive paddle cover to test Test Procedure FIGURE 8 FIGURE 9 1 See Figure 7 Remove the front drive paddle Cover G from the rear hous...

Page 48: ...Wear safety glasses rubber gloves and a rubber apron Work in a well ventilated area Do not allow tools to touch more than one battery terminal at a time ALWAYS disconnect the negative ground cable fir...

Page 49: ...gher cutout voltage Special Service Note On all the 24V machines a minimum recharge voltage of 2 13 volts per cell must be reached to allow the scrub brush and solution system to reset function again...

Page 50: ...hten the vent caps Wash the tops of the batteries with a solution of baking soda and water 2 tablespoons of baking soda to 1 liter of water CHARGING GEL VRLA BATTERIES Charge the batteries each time t...

Page 51: ...g Almost all battery caps are vented so there s no need to loosen or remove them for charging Keep the Batteries Clean Monthly Use a damp cloth to wipe dirt from the top of the batteries Battery termi...

Page 52: ...l the plastic Drive Nut B as shown with the nut pin pocket away from the motor Then finish assembly of remaining parts long compression spring Spring Housing D and mounting hardware 2 Hold onto the sp...

Page 53: ...FORM NO 56043098 Convertamatic 24C 24D 26C 26D 28C 28D 51 FIGURE 4...

Page 54: ...ctions 2 Connect the programmer put it in diagnostic mode and read the displayed fault information In this example the display shows No Faults Present indicating that the controller has not detected a...

Page 55: ...FORM NO 56043098 Convertamatic 24C 24D 26C 26D 28C 28D 53 FIGURE 5 ELECTRICAL SYSTEM...

Page 56: ...00000 HPD High Pedal Disable fault 1 Improper sequence of throttle and KSI push or inhibit inputs 2 Misadjusted throttle pot 4 1 0000 O current sense fault 1 Short in motor or in motor wiring 2 Contr...

Page 57: ...ssary to cycle the key or seat switch to clear the fault code 4 Move the drive paddle to operate the throttle The motor should begin to turn in the selected direction If it does not verify the wiring...

Page 58: ...on of the main control is to detect any system failures and display an error code on the display LED panel or store it in the main control board s recall memory mode The error code s are used to help...

Page 59: ...c Repair or replace 7 Inspect scrub brush drive bearings drive belts for excessive wear cyl 07 Vacuum motor overload Normal current load 24V 23 25 Amps 1 Check for debris in the vacuum motor 2 Worn ca...

Page 60: ...flash the fault code produced by the speed control Refer to the speed control section for details on these codes If SCS does not display following the troubleshooting procedure below Disconnect the Or...

Page 61: ...FORM NO 56043098 Convertamatic 24C 24D 26C 26D 28C 28D 59 FIGURE 6 ELECTRICAL SYSTEM...

Page 62: ...ief On Green Flash Brush motor output is off and brush motor current is being sensed abnormal condition Check for voltage at the Wht wire on K1 contactor to battery ground If any voltage is present re...

Page 63: ...not at its down limit When the output is in state 4 the actuator output is turned on The scrub pressure decrease indicator should be green or flashing green The indicator will be a steady green if th...

Page 64: ...overload has occurred Extended Scrub Switch G This switch is used to toggle the sate of the recycle pump and recycle valve If available Pressing and releasing this switch will alternately turn the re...

Page 65: ...dard cutout level factory default select 20 6V For the alternate cutout level select 21 6V 8 To save the new setting press scrub off switch Scrub off indicator will turn to Green and display will show...

Page 66: ...to hold both switches until light scrub indicator turns yellow 5 Release both switches Scrub off indicator will turn red and the display will show the current scrub brush type icon and scrub deck size...

Page 67: ...n effect until it is changed again Displaying the Control Unit Revision Level If it is desired to view the revision level of the control unit perform the following steps 1 Turn the main power key swit...

Page 68: ...setting and move to solution rate setting 7 The display will now show solution icon with gauge Light scrub indicator will now turn green and solution indicator will turn yellow Pressing solution swit...

Page 69: ...9 Turn the main power key switch to the off position 10 The new settings will be saved and will remain in effect until it is changed again Extreme Scrub Setting Adjustment FACTORY DEFAULT SCRUB PRESSU...

Page 70: ...urn the main power key switch to the off position 2 Press and hold the recycle switch 3 While holding the recycle switch turn the main key switch to the on position 4 Continue to hold the recycle swit...

Page 71: ...nal M1 Motor Wheel Drive M2 Motor Left Brush M3 Motor Right Brush M4 Motor Vac M5 Motor Brush Actuator M8 Pump Solution M9 Pump Recycle Optional M10 Chemical Pump Optional R1 Potentiometer 5K Ohm Thro...

Page 72: ...WHT WHT GRA BRN BRN BLU WHT VIO BLK BLU WHT BRN BLK RED BLK WHT GRN BRN WHT BLU WHT RED BLK WHT RED WHT YEL BLK WHT BRN RED GRN RED BRN RED WHT GRA BLK YEL WHT GRA WHT BRN YEL GRN BLU BLK GRA WHT YEL...

Page 73: ...4 1 YEL BLU 18 1 RED 16 1 BRN 16 3 BLK 12 3 RED 10 2 RED 4 1 RED 10 2 WHT 12 1 BLK 16 2 BLU 12 1 BLU WHT 16 1 WHT RED 16 1 WHT 12 1 BLK 12 4 BLK 10 3 BRN BLK 10 1 BRN BLK 10 1 YEL RED 10 1 YEL RED 10...

Page 74: ...Tank 2 Shut Off Valve 3 Inline Solution Filter 4 Solution Pump 5 Check Valve 6 Detergent Pump 7 Reducer Tee 8 Reducer Coupler 9 Solution Solenoid Valve 10 Detergent Tank 11 Reducer Coupler 12 Solutio...

Page 75: ...rub Solenoid Valve 16 Solution Manifold Cylindrical Models 17 Tee EXTENDED SCRUB SYSTEM PLUMBING SCHEMATIC APPENDIX Service Note 1 After each use drain and rinse the recovery tank thoroughly and then...

Page 76: ...s the Detergent Switch F and the Solution Switch B down for at least 3 seconds NOTE Once activated the purge process takes 10 seconds See illustration on next page for Detergent System indicators Norm...

Page 77: ......

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