Minuteman ER26 User manual

For the ER26, ER2832
SCV2832E, SCV2426,
SCV280000 & ES2832
Automatic Scrubbers
Service Manual
For the ER26, ER2832
SCV2832E, SCV2426,
SCV280000 & ES2832
Automatic Scrubbers
For:
Training
Troubleshooting
Adjustments
Rev. 11/2012

Contents
1 Cautions ----------------------------------------------------------------------
2 Maintenance Intervals ---------------------------------------------------
2.1 Customer Maintenance ----------------------------------------------
2.2 Maintenance I after every 125 hours of operation-------------
2.3 Maintenance II after every 250 hours of operation------------
2.4 Maintenance S after every 500 hours of operation,
minimum once per year-------------------------------------------
3 Service Mode ---------------------------------------------------------------
3.1 Service Mode SC280000 -------------------------------------------
3.2 Service Mode SCV2426P -------------------------------------------
4 Brush Pressure Settings--------------------------------------------------
4.1 ER2832 -----------------------------------------------------------------
4.2 ER26 and SCV2426 -------------------------------------------------
4.3 ES2832, CP2832 and Phoenix 30 and 34 ---------------------
5 Error Codes -----------------------------------------------------------------
5. Table of Error Codes (LCD)------------------------------------------
Page 4
Page 5
Page 6
Page 7
Page 8
Page 9
Page 10
Page 11
Page 12
Page 13
Page 14
Page 15
Page 16-17
Page 18
Page 19-22
1 Cautions ----------------------------------------------------------------------
2 Maintenance Intervals ---------------------------------------------------
2.1 Customer Maintenance ----------------------------------------------
2.2 Maintenance I after every 125 hours of operation-------------
2.3 Maintenance II after every 250 hours of operation------------
2.4 Maintenance S after every 500 hours of operation,
minimum once per year-------------------------------------------
3 Service Mode ---------------------------------------------------------------
3.1 Service Mode SC280000 -------------------------------------------
3.2 Service Mode SCV2426P -------------------------------------------
4 Brush Pressure Settings--------------------------------------------------
4.1 ER2832 -----------------------------------------------------------------
4.2 ER26 and SCV2426 -------------------------------------------------
4.3 ES2832, CP2832 and Phoenix 30 and 34 ---------------------
5 Error Codes -----------------------------------------------------------------
5. Table of Error Codes (LCD)------------------------------------------
Page 2
Page 4
Page 5
Page 6
Page 7
Page 8
Page 9
Page 10
Page 11
Page 12
Page 13
Page 14
Page 15
Page 16-17
Page 18
Page 19-22

Contents
5.2 Error Codes (LED) ---------------------------------------------------
6 Side Squeegee Adjustment (cylindrical) -----------------------------
6.1 Side Squeegee Adjustment (disk)--------------------------------
7 Rear Squeegee Adjustments ------------------------------------------
8 Replacing the Brush Actuator On SC2832 Models----------------
9 Trouble Shooting the Code 8 Error -----------------------------------
10 Testing the Throttle Potentiometer------------------------------------
11 Identifing the Cause of Trio Controllers Failures-------------------
12 Electric Brake Maintenance & Adjustment --------------------------
12.1 Electric Brake Disk ------------------------------------------------
12.2 Brake Seal & Cap --------------------------------------------------
13 Notes ------------------------------------------------------------------------
Page 21
Page 25
Page 26
Page 27-29
Page 30
Page 40-42
Page 43-44
Page 45
Page 46
Page 47
Page 48
Page 49
5.2 Error Codes (LED) ---------------------------------------------------
6 Side Squeegee Adjustment (cylindrical) -----------------------------
6.1 Side Squeegee Adjustment (disk)--------------------------------
7 Rear Squeegee Adjustments ------------------------------------------
8 Replacing the Brush Actuator On SC2832 Models----------------
9 Trouble Shooting the Code 8 Error -----------------------------------
10 Testing the Throttle Potentiometer------------------------------------
11 Identifing the Cause of Trio Controllers Failures-------------------
12 Electric Brake Maintenance & Adjustment --------------------------
12.1 Electric Brake Disk ------------------------------------------------
12.2 Brake Seal & Cap --------------------------------------------------
13 Notes ------------------------------------------------------------------------
Page 3
Page 21
Page 25
Page 26
Page 27-29
Page 30
Page 40-42
Page 43-44
Page 45
Page 46
Page 47
Page 48
Page 49

1. Cautions
• Always disconnect the A.C. Cord from the outlet and and D.C. Cord from the
battery pack before servicing the machine. Except for making voltage and
current measurements.
• Before replacing or disconnecting any electrical componets, disconnect the
battery pack from the machine first. Failure to do so could cause a short
circuit.
• After any repair work test the machine for proper operation.
• When servicing the machine always observe the general safety and accident
prevention guidlines.
• Do not attempt to power up the controllers with battery chargers. Permanent
damage will occur to the controller.
36 volt chargers usually have an output in excess of 48 volts.
• Use only Minuteman approved battery chargers.
• Do not apply power directly to the motors without first disconnecting them
from the controller circuit.
Page 4
• Always disconnect the A.C. Cord from the outlet and and D.C. Cord from the
battery pack before servicing the machine. Except for making voltage and
current measurements.
• Before replacing or disconnecting any electrical componets, disconnect the
battery pack from the machine first. Failure to do so could cause a short
circuit.
• After any repair work test the machine for proper operation.
• When servicing the machine always observe the general safety and accident
prevention guidlines.
• Do not attempt to power up the controllers with battery chargers. Permanent
damage will occur to the controller.
36 volt chargers usually have an output in excess of 48 volts.
• Use only Minuteman approved battery chargers.
• Do not apply power directly to the motors without first disconnecting them
from the controller circuit.

2. Maintenance Intervals
•Maintenance Intervals:
In a modular structure, the Minuteman System Maintenance determines the specific
technical proceedures to be preformed and sets the time interval between the two
maintenance cycles.
For each of the maintenance cycle, the replaceable parts are determined as well.
Further details described in the specific chapters.
•Minuteman System Maintenance K:
To be performed by the customer (in daily or weekly intervals) according to the maintenance
and care instructions as specified in the operating instructions.
The operator must be professionally instructed after delivery of the machine by selling
dealer.
•Minuteman System Maintenance I: (after every 125 hours of operation)
To be preformed an authorized Minuteman Service Center in accordance with the machine-
specific system maintenance.
•Minuteman System Maintenance II: (after every 250 hours of operation)
To be preformed an authorized Minuteman Service Center in accordance with the machine-
specific system maintenance.
•Minuteman System Maintenance S: (after every 500 hours of operation, safety check) To
be performed by an authorized Minuteman Service Center in accordance with the machine-
specific system maintenance.
•Maintenance Intervals:
In a modular structure, the Minuteman System Maintenance determines the specific
technical proceedures to be preformed and sets the time interval between the two
maintenance cycles.
For each of the maintenance cycle, the replaceable parts are determined as well.
Further details described in the specific chapters.
•Minuteman System Maintenance K:
To be performed by the customer (in daily or weekly intervals) according to the maintenance
and care instructions as specified in the operating instructions.
The operator must be professionally instructed after delivery of the machine by selling
dealer.
•Minuteman System Maintenance I: (after every 125 hours of operation)
To be preformed an authorized Minuteman Service Center in accordance with the machine-
specific system maintenance.
•Minuteman System Maintenance II: (after every 250 hours of operation)
To be preformed an authorized Minuteman Service Center in accordance with the machine-
specific system maintenance.
•Minuteman System Maintenance S: (after every 500 hours of operation, safety check) To
be performed by an authorized Minuteman Service Center in accordance with the machine-
specific system maintenance. Page 5

2.1 Minuteman System Maintenance K
Page 6

2.2 Minuteman System Maintenance I
Page 7

2.3 Minuteman System Maintenance II
Page 8

2.4 Minuteman System Maintenance S
Page 9

3. Service Mode
The Service mode switch can be used to lower the brush deck.
Press and hold the switch in the down position and the deck will lower. Once
it is in service mode, the deck can raised and lowered by pressing the top or
lower part of the rocker switch. To return the machine back to normal
operation: Turn the key switch off and back on. The machine will reset.
The switch located below the
seat behind the panel on the
right side on the SCV2832E
and ER2832 s.
The switch is located below the
recovery tank on the ES2832
and CP2832 models.
Page 10
The switch is located
behind the panel on the
left side on the ER26.

3.1 Service Mode
Push and hold the brush
pressure down button for
15-20 seconds.
Once it is in service mode,
You can raise and lower
the deck buy pressing the
brush pressure up and
down arrows.
SC280000 Models Only
Push and hold the brush
pressure down button for
15-20 seconds.
Once it is in service mode,
You can raise and lower
the deck buy pressing the
brush pressure up and
down arrows.
Page 11
To return the machine back
to normal operation: Turn
the key switch off and back
on. The machine will reset.

3.2 Service Mode
The Service Mode Switch on
the ER26 and SCV2426 is
located next to the step on
the front of the machine on
the operator’s left side.
Once it is in service mode,
the deck can raised and
lowered by pressing the
upper or lower part of the
rocker switch.
SCV2426P Only
The Service Mode Switch on
the ER26 and SCV2426 is
located next to the step on
the front of the machine on
the operator’s left side.
Once it is in service mode,
the deck can raised and
lowered by pressing the
upper or lower part of the
rocker switch.
Page 12
To return the machine back to normal operation: Turn the key switch off
and back on. The machine will reset.

4. Brush Pressure Settings
The brush pressure range can be
changed when changing the type of
deck on the SC2832E, SC2426P,
CP2832 and ES2832 models.
Connect the orange/violet wire into
the terminal block with red/black wire
group for cylindrical decks and
unplug it for the disk decks.
The terminal block is located below
the Trio controller on the SCVs and
below the control panel on the ES
The brush pressure range can be
changed when changing the type of
deck on the SC2832E, SC2426P,
CP2832 and ES2832 models.
Connect the orange/violet wire into
the terminal block with red/black wire
group for cylindrical decks and
unplug it for the disk decks.
The terminal block is located below
the Trio controller on the SCVs and
below the control panel on the ES
SCV 2832E Shown
Trio Controller
Page 13

4.1 Brush Pressure Settings
The brush pressure range can be
changed when changing the type of
deck on the ER2832 models.
Connect the orange/violet wire into
the terminal block with red/black wire
group for cylindrical decks and
unplug it for the disk decks.
The terminal block is located below
the Trio controller on the ER2832s.
Brush Pressure Settings
The brush pressure range can be
changed when changing the type of
deck on the ER2832 models.
Connect the orange/violet wire into
the terminal block with red/black wire
group for cylindrical decks and
unplug it for the disk decks.
The terminal block is located below
the Trio controller on the ER2832s.
ER2832 Shown
Page 14

4.2 Brush Pressure Settings
The brush pressure range can be changed
when changing the type of deck on the ER26
and SC2426 models.
Connect the orange/violet wire into the
terminal block with red/black wire group for
cylindrical decks and unplug it for the disk
decks.
The terminal block is located below the Trio
controller on the ER26 and SC2426 models.
Brush Pressure Settings
Page 15
ER26 and SC26P Shown

4.3 ES2832,CP2832, and Phoenix 34
It is now available to change the brush pressure settings in
the field, when changing brush decks on current production
models of the Easy Scrub 28 and 32. No other modifications
will be required.
Changing the brush pressure settings will only be required,
when changing the cylindrical over to the disk deck or disk
over to the cylindrical decks. Changing the size only
(Example: Changing the 28 disk to 32 disk) will not require
changing the settings.
The orange/violet wire from the controller has been added to
change settings.
Connecting the orange/violet wire to the terminal block puts it
in the low-pressure mode for cylindrical decks.
Disconnecting the orange/violet from the terminal block puts
the brush pressure in the high-pressure mode for disk decks.
Instructions:
1. Remove the switch panel, by removing the four screws.
2. Locate the terminal block. See Photograph.
It is now available to change the brush pressure settings in
the field, when changing brush decks on current production
models of the Easy Scrub 28 and 32. No other modifications
will be required.
Changing the brush pressure settings will only be required,
when changing the cylindrical over to the disk deck or disk
over to the cylindrical decks. Changing the size only
(Example: Changing the 28 disk to 32 disk) will not require
changing the settings.
The orange/violet wire from the controller has been added to
change settings.
Connecting the orange/violet wire to the terminal block puts it
in the low-pressure mode for cylindrical decks.
Disconnecting the orange/violet from the terminal block puts
the brush pressure in the high-pressure mode for disk decks.
Instructions:
1. Remove the switch panel, by removing the four screws.
2. Locate the terminal block. See Photograph.
Page 16

4.2 ES2832,CP2832, and Phoenix 34
Locate the Red/Black wire group Locate the Orange/Violet wire
Page 17

The model SC280000 Rider scrubber uses a LCD display mounted above the steering wheel which
indicates the error code when they occur. The will be displayed as a four digit code with a picture of
a wrench next it. The top three are the hour meters for Total Time, Brush Motors and Drive Motor.
5. Error Codes
The ER26, ER2832, SC2832E, SC2426P, ES2862 and CP2832 models uses a 10 light LED display to
indicate the battery condition and error codes. The battery condition will be displayed with 1 to 10
LEDS. 10 LEDs would be a fully charged battery one LED batteries are discharged.
When a error occurs 1 to 10 LEDS will flash indicating a specific error has occurred. There are two
aspects of the error codes.
A. How many LEDS are flashing
B. How many times it is flashing ( referred to as sequence)
Page 18

5. Table of Error Codes (SC280000 Models)
Code
Information or Fault Description
Comments and Corrective Action
0810
TILLER FAULT-1
For all Throttle Potentiometer Circuit Diagnostic Codes:
0811
TILLER MAX WIPER DIFFERENCE ERROR
1- Check throttle wiring for shorts or opens. Repair or replace as necessary.
0812
TILLER MAX PULL DOWN DIFFERENCE ERROR
2- If Diagnostic Code is not cleared, then replace throttle.
0813
TILLER MAX PULL SAFE DIFFERENCE ERROR
" " " "
0814
TILLER REFERENCE ERROR
Throttle displaced during start up. Check throttle springs (Riders) or drive switches (ES or
CPs)
0815
TILLER LO REFERENCE ERROR
1- Check throttle wiring for shorts or opens. Repair or replace as necessary.
0816
TILLER HI REFERENCE ISO ERROR
2- If Diagnostic Code is not cleared, then replace throttle.
0817
TILLER LO REFERENCE ISO ERROR
" " " "
0818
TILLER ERROR BOTH HAVE READINGS
" " " "
1310
EXCESSIVE CURRENT TRIP
Current draw of all output devices connected to TRIO+ exceeded 250 amp maximum limit.
1311
SOFT AUX1 OVERCURRENT OCCURRED
Brush Actuator on Aux-1 exceeded 21 amp max. current limit. Check wiring or replace
device.
1311
SOFT AUX1 OVERCURRENT OCCURRED
Brush Actuator on Aux-1 exceeded 21 amp max. current limit. Check wiring or replace
device.
1312
SOFT AUX2 OVERCURRENT OCCURRED
Squeegee Actuator on Aux-2 exceeded 21 amp max. current limit. Check wiring or replace
device.
1313 SOFT AUX3 OVERCURRENT OCCURRED Water Pump on Aux-3 exceeded 7 amp max. current limit. Check wiring or replace device.
1314 SOFT AUX4 OVERCURRENT OCCURRED Water Solenoid on Aux-4 exceeded 7 amp max. current limit. Check wiring or replace device.S
1318 BEACON LIGHT CIRCUIT OVERLOAD olution Tank Empty signal from float switch
Beacon light circuit - Check for short or incorrect wiring
131C
SOFT ALARM OVERCURRENT OCCURRED
Alarm circuit exceeded 2 amp max. current limit. Check wiring or replace device.
1321
AUX1 OVERCURRENT 2 OCCURRED
Device connected to Aux-1 exceeded 12 amps for > .1 sec Check Brush Actuator.
1322
AUX2 OVERCURRENT 2 OCCURRED
Device connected to Aux 2 exceeded 12 amps for > .1 sec. Check wiring or replace device.
1411
ERROR AUX 1 POSITIVE SHORTED_LOW
Check Brush Actuator Motor and wiring. Repair or replace as necessary.
1412
ERROR AUX 1 NEGATIVE SHORTED LOW
Check Brush Actuator Motor and wiring. Repair or replace as necessary.
1413
ERROR AUX 2 POSITIVE SHORTED LOW
Check Squeegee actuator and wiring. Repair or replace as necessary.
1414
ERROR AUX 2 NEGATIVE SHORTED LOW
Check Squeegee actuator and wiring. Repair or replace as necessary.
1500
BRAKE FAULT OPEN CIRCUIT
Check Electric Brake circuit for a faulty connection.
1501
BRAKE FAULT 2
Check Electric Brake circuit for a faulty connection.
1507
BRAKE OVER CURRENT ERROR
Check Brake circuit wiring and brake. Repair or replace as necessary.
1600
HIGH BATTERY ERROR
Battery is overcharged or damaged. Replace battery.
1D02
FRONT END SPEC CHANGE TRIP
Drive parameters have been reprogrammed. Cycle power with key switch.
1E03
INHIBIT ACTIVATED
Solution Tank Empty - Check float switch
1E04
INHIBIT ACTIVATED2
Recovery Tank Full - Check float switch
1E06
INHIBIT INPUT OUT OF RANGE
Invalid Inhibit signal. Check wiring and device. Repair or replace as necessary.
Page 19

5. Table of Error Codes (SC280000 Models)
2C00
LOW BATTERY ERROR
Battery Charge to low. Recharge battery.
2C01
LOW BATTERY ERROR2
Battery Charge to low. Recharge battery.
2C02
SOFT BATTERY LOCKOUT OCCURRED
Battery Charge to low. Recharge battery.
2C03
SOFT BATTERY LOCKOUT 2 OCCURRED
Battery Charge to low. Recharge battery.
2F01
TILLER DISPLACED ERROR
Throttle displaced on Power-up. Release throttle and then re-engage throttle.
3A00
BAD SETTINGS
Illegal program parameter settings.
7000
STARTUP WITH PUSH SELECTED
Freewheel Input signal detected at startup. Disconnect Freewheel input.
7001
PUSH ACTIVATED IN DRIVE MODE
Freewheel Input signal activated while driving. Disconnect Freewheel input.
7500
TILLER COMMS TIMEOUT
Problem with LCD Module or wiring. Repair or replace as necessary.
7600
SOFT BRUSH MOTOR DISCONNECTED ERROR
Check Brush Motor wiring and connectors
7601
SOFT BRUSH CURRENT FOLDBACK
Too much Brush Pressure/Current. Check for jammed Brushes or Deck or Brush motor short.
7602
SOFT BRUSH CURRENT FOLDBACK2
Too much Brush Pressure/Current. Check for jammed Brushes or Deck or Brush motor short.
7602
SOFT BRUSH CURRENT FOLDBACK2
Too much Brush Pressure/Current. Check for jammed Brushes or Deck or Brush motor short.
7603
SOFT BRUSH CURRENT FOLDBACK3
Too much Brush Pressure/Current. Check for jammed Brushes or Deck or Brush motor short.
7604
SOFT BRUSH INHIBIT
Brush Inhibit signal is active.
7605
BRUSH STARTUP OVERCURRENT DETECTION
Possible Brush motor problem or shorted brush circuit wiring.
7700
SOFT VACUUM MOTOR DISCONNECTED ERROR
Check Vacuum Motor wiring and connectors
7701
SOFT VACUUM CURRENT FOLDBACK
Too much Vac motor current. Check for shorted Vac motor or wiring.
7702
SOFT VACUUM CURRENT FOLDBACK2
Too much Vac motor current. Check for shorted Vac motor or wiring.
7703
SOFT VACUUM CURRENT FOLDBACK3
Too much Vac motor current. Check for shorted Vac motor or wiring.
7800
TRACTION MOTOR FAULT-1
Check Traction Motor wiring and connectors
7801
TRACTION MOTOR OVER CURRENT ERROR
Too much Traction motor current. Check for shorted Traction motor or wiring.
7802
TRACTION MOTOR IN FOLDBACK STATE
Traction Motor was overloaded for too long, Control limiting current to protect motor.
7803
MOTOR LINE VOLTAGES INSTABILITY TIMEOUT
Possible Traction Motor or loose wiring problem.
7804
TRACTION MOTOR IN DRIVE BOOST
Traction Motor under heavy load or Current Limit / Fold back parameters set too low.
7880
TRACTION SPEED INPUT OUT OF RANGE
Check Throttle Potentiometer and wiring.
7900
EMERGENCY STOP ERROR
Emergency Stop function activated.
7901
SOFT BELLY BUTTON ACTIVATED
Safety Bar switch is activated. (ES and CP models only)
8000
SERVICE MODE
Service Timer limits have been reached.
9000
BRUSHES NOT FITTED
Check Brush Deck to make sure Brushes are fitted properly.
Page 20