Advance acoustic 56314009, Service Manual

Page: 23 / 79

WHEEL DRIVE SYSTEM
FORM NO. 56043089 - AquaRide
™
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Low Current A1 Speed Control Pin Key Detail
Pin # Wire Color Controller Pin Description & Function
1 – Open not used
2 – Open not used.
3 Vio Throttle Pot R1 pot high input
4 Gra Throttle Pot R1 pot wiper input
5 Orn KSI (key switch input): Battery (+) powers up controller 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 Brn/Wht Mode Select 1: Drive motor scrub speed input, battery (+) from the (E1) Main Controller.
9 Orn/Blu Status Fault: Speed controller fault output to main control panel fault indicator light (accessory wand)
10 – Open not used
11 – Open not used
12 – Open not used
13 Yel Throttle Pot R1 pot low input
14 – Open not used
15 – Open not used
16 Blu/Blk Rev/Alarm Driver output Battery (-) commands turns off solution, raises scrub deck & sounds back-up
alarm
17 – Open not used
18 Blk Speed limit pot input connection (reference Table 1 )
Transport and Fast-Maintenance – tied to Pot HIGH
Maintenance, Fast-Restoration and Restoration – tied to Pot LOW
WHEEL DRIVE TROUBLESHOOTING GUIDE
Problem Possible Cause
• Wheel drive motor will not run in • Batteries need charging (low battery voltage, recharge
forward and reverse. batteries)
• Wheel Drive Motor Circuit Breaker (F2) tripped (reset 45A circuit
breaker)
• Control Circuit Circuit Breaker (F4) tripped (reset circuit breaker)
• Parking Brake (6) set (release parking brake)
• Emergency Stop Switch (13) tripped (pull red knob to reset)
• Safety Switch (S2) in seat not closed (check seat switch)
• Defective Wheel Drive Motor (replace motor) *
• Defective Throttle Potentiometer (R1) (replace) *
• Wheel drive in one direction only, loss of either • Test the Fwd & Rev (R1) wiring outputs (pins 3, 4 & 13) at the
forward or reverse. speed control for an open. Repair wiring or replace the R1
throttle pot.
• Controller can’t change electrical polarity to wheel motor
replace the (A1) speed control.
• Hourmeter/status display shows an error • Speed controller has sensed an operation error code fault.
03 fault code. (see the Status LED Fault Codes (Table 2) in the Electrical
System)
* = See Curtis Speed Control Troubleshooting Section.