NILFISK Adgressor 2820C Service Manual

Adgressor

™

BR 850S, 850CS, 950S, 950CS BR 1050S, 1050CS

SERVICE MANUAL

Advance MODELS 56314661(2820D), 56314662(3220D), 56314663(2820C), 56314664(3220C) 56314826(3520D), 56314827(3820D), 56314828(3520C), 56314829(3820C) Nilﬁ sk MODELS 56314674(850S), 56314675(850CS), 56314830(950S), 56314831(1050S), 56314832(950CS), 56314833(1050CS)

10/04 revised 10/06 FORM NO. 56043097

TABLE OF CONTENTS

GENERAL INFORMATION ...................................................................................................................................................2

SAFETY INSTRUCTIONS ....................................................................................................................................................3

SPECIFICATIONS & MAINTENANCE ...............................................................................................................................4-6

PM CHECKLIST ................................................................................................................................................................7-8

KNOW YOUR MACHINE .................................................................................................................................................9-15

STEERING SYSTEM .....................................................................................................................................................16-17

STEERING COLUMN ASSEMBLY SHROUD REMOVAL ................................................................................................16

STEERING CHAIN REMOVAL AND TENSIONING .........................................................................................................17

WHEEL DRIVE SYSTEM ...............................................................................................................................................18-27

GENERAL FUNCTIONAL OVERVIEW .............................................................................................................................18

DRIVE MOTOR SYSTEM CONTROLLER FUNCTION OVERVIEW ...............................................................................18

WHEEL DRIVE TROUBLESHOOTING GUIDE ................................................................................................................21

STEERING SPINDLE & WHEEL DRIVE MOTOR ASSEMBLY REMOVAL ......................................................................22

DRIVE TIRE REMOVAL ....................................................................................................................................................22

BRAKE ADJUSTMENT .....................................................................................................................................................24

DRIVE WHEEL BRAKE STRAP REPLACEMENT ...........................................................................................................25

WHEEL DRIVE MOTOR CARBON BRUSH INSPECTION ..............................................................................................25

POTENTIOMETER REMOVAL & TESTING .....................................................................................................................26

POTENTIOMETER INSTALLATION & ADJUSTMENT .....................................................................................................27

DRIVE PEDAL NEUTRAL ADJUSTMENT ........................................................................................................................27

SCRUB BRUSH SYSTEM .............................................................................................................................................28-35

FUNCTIONAL OVERVIEW ...............................................................................................................................................28

SCRUB BRUSH SYSTEM TROUBLESHOOTING ...........................................................................................................29

SCRUB BRUSH DECK REMOVAL (DISC & CYLINDRICAL) ..........................................................................................30

SCRUB BRUSH MOTOR ASSEMBLY REMOVAL (DISC) ...............................................................................................31

SCRUB BRUSH GEARBOX REMOVAL AND OUTPUT SHAFT REPLACEMENT (DISC) ..............................................31

SCRUB BRUSH SIDE SKIRT REPLACEMENT (DISC) ...................................................................................................32

SIDE SKIRT HEIGHT ADJUSTMENT (DISC) ...................................................................................................................32

SCRUB BRUSH FRONT/REAR SKIRT REPLACEMENT (DISC) ....................................................................................32

BRUSH DECK ACTUATOR REMOVAL (DISC & CYLINDRICAL) ....................................................................................33

SCRUB BRUSH MOTOR REMOVAL (CYLINDRICAL) ....................................................................................................34

SCRUB BRUSH BELT REPLACEMENT (CYLINDRICAL) ...............................................................................................34

SCRUB BRUSH SYSTEM MAINTENANCE .....................................................................................................................34

SCRUB BRUSH REMOVAL AND INSTALLATION (CYLINDRICAL) ................................................................................35

SIDE SKIRT MAINTENANCE & ADJUSTMENT (CYLINDRICAL) ...................................................................................35

CORRECT SCRUB MOTOR WIRING CONNECTIONS ..................................................................................................36

CORRECT BRUSH ROTATION DIRECTIONS ................................................................................................................37

SOLUTION SYSTEM .....................................................................................................................................................38-41

FUNCTIONAL OVERVIEW ...............................................................................................................................................38

SOLUTION SOLENOID CIRCUIT OVERVIEW ................................................................................................................39

TROUBLESHOOTING GUIDE .........................................................................................................................................40

SOLUTION SYSTEM MAINTENANCE .............................................................................................................................40

SOLUTION SOLENOID REMOVAL ..................................................................................................................................40

SOLENOID VALVE DISASSEMBLY AND CLEANING .....................................................................................................41

RECOVERY SYSTEM ...................................................................................................................................................42-45

FUNCTIONAL OVERVIEW ...............................................................................................................................................42

VACUUM MOT OR CIRCUIT OVERVIEW ........................................................................................................................43

TROUBLESHOOTING GUIDE .........................................................................................................................................44

VACUUM / RECOVERY SYSTEM SERVICE MAINTENANCE CHECKLIST ...................................................................44

MAINTENANCE OF VACUUM FILTER AND FLOAT CAGE .............................................................................................44

RECOVERY TANK REMOVAL .........................................................................................................................................45

VACUUM MOTOR REMOVAL ..........................................................................................................................................45

SQUEEGEE SYSTEM ...............................................................................................................

SQUEEGEE SYSTEM LIFT MOTOR OVERVIEW ...........................................................................................................46

TROUBLESHOOTING ......................................................................................................................................................46

SQUEEGEE LIFT ACTUATOR MOTOR REMOVAL .........................................................................................................47

SQUEEGEE LIFT CABLE REPLACEMENT .....................................................................................................................47

SQUEEGEE MAINTENANCE ...........................................................................................................................................48

SQUEEGEE ADJUSTMENT .............................................................................................................................................48

....................................46-48

2 - FORM NO. 56043097 / Adgressor™ / BR 850S, 850CS, 950S, 950CS, 1050S, 1050CS

revised 10/06

TABLE OF CONTENTS

ELECTRICAL SYSTEM .................................................................................................................................................49-84

BATTERIES / CHARGERS SPECIFICATIONS ................................................................................................................49

INSTALL THE BATTERIES ...............................................................................................................................................49

DESCRIPTION OF THE BATTERY LOW VOLTAGE CUTOUT FEATURE ......................................................................50

DESCRIPTION OF THE BATTERY CONDITION INDICATOR ........................................................................................50

CHARGING THE BATTERIES ..........................................................................................................................................50

BATTERY MAINTENANCE ...............................................................................................................................................51

BATTERY TESTING .........................................................................................................................................................51

ACTUATOR DRIVE NUT ADJUSTMENT ....................................................................................................................52-53

CURTIS SPEED CONTROL ........................................................................................................................................54-57

MAIN CONTROL BOARD FUNCTIONAL OVERVIEW .....................................................................................................58

MAIN CONTROL BOARD TROUBLESHOOTING GUIDE ...............................................................................................58

MAIN CONTROLLER ERROR CODES .......................................................................................................................58-59

MAIN CONTROLLER SERVICE TEST MODE ............................................................................................................60-63

MAIN CONTROL BOARD SPECIAL PROGRAM OPTIONS .......................................................................................64-71

ELECTRICAL COMPONENT LOCATION (before Serial Number chart) ..........................................................................73

WIRING DIAGRAM (before Serial Number chart) ............................................................................................................74

WIRING SCHEMATIC (before Serial Number chart) ........................................................................................................75

WIRING DIAGRAM (after Serial Number chart) ...............................................................................................................76

WIRING SCHEMATIC (after Serial Number chart) ...........................................................................................................77

ELECTRICAL COMPONENT LOCATION (after Serial Number chart) .............................................................................78

Note: All references to right, left, front, or rear in this manual are as seen from the operator’s stand-point.

revised 10/06

FORM NO. 56043097 / Adgressor™ / BR 850S, 850CS, 950S, 950CS, 1050S, 1050CS - 1

GENERAL INFORMATION

INTRODUCTION

This manual will help you get the most from your Nilﬁ sk-Advance Rider Scrubber. Read it thoroughly before servicing the machine.

Note: Bold numbers in parentheses indicate an item illustrated on pages 9-10.

This product is intended for commercial use only.

P ARTS AND SERVICE

Repairs, when required, should be performed by your Authorized Nilﬁ sk-Advance Service Center, who employs factory trained service personnel, and maintains an inventory of Nilﬁ sk-Advance original replacement parts and accessories.

Call the NILFISK-ADVANCE DEALER named below for repair parts or service. Please specify the Model and Serial Number when discussing your machine.

(Dealer, afﬁ x service sticker here.)

NAME PLATE

The Model Number and Serial Number of your machine are shown on the Nameplate on the machine. This information is needed when ordering repair 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

TRANSPORTING THE MACHINE

CAUTION!

Before transporting the machine on an open truck or trailer, make sure that . . .

• The machine is tied down securely - see tie-down locations (25).

• All access doors and covers are secured (tape and strap as necessary).

• The machine parking brake is set.

TOWING

CAUTION!

If the machine must be towed or pushed, make sure the Key Switch (Main Power) (J) is in the OFF position and do not move the machine faster than a normal walking pace (2-3 mph, 3-5kph) and for short distances only.

OTHER MANUALS AVAILABLE

The following manuals are available from the Nilﬁ sk-Advance Literature Service Department, for your Rider Scrubber:

• Parts List - Form Number 56042446

• Operation Manual - Form Number 56041568 (Danish, Norwegian, Swedish, Finnish)

56041569 (German, French, Dutch, Russian) 56041570 (Spanish, Portuguese, Italian, Greek) 56041581 (Estonian, Latvian, Lithuanian, Slovenian) 56041582 (Slovakian, Czech, Polish, Hungarian) 56041583 (English, Spanish)

• Curtis Programmer Manual Number 56043101

2 - FORM NO. 56043097 / Adgressor™ / BR 850S, 850CS, 950S, 950CS, 1050S, 1050CS

CAUTIONS AND WARNINGS SYMBOLS

Nilﬁ sk-Advance uses the symbols below to signal potentially dangerous conditions. Always read this information carefully and take the necessary steps to protect personnel and property.

DANGER!

Is used to warn of immediate hazards that will cause severe personal injury or death.

WARNING!

Is used to call attention to a situation that could cause severe personal injury.

CAUTION!

Is used to call attention to a situation that could cause minor personal injury or damage to the machine or other property.

GENERAL SAFETY INSTRUCTIONS

Speciﬁ c Cautions and Warnings are included to warn you of potential danger of machine damage or bodily harm.

WARNING!

• This machine shall be used only by properly trained and authorized persons.

• While on ramps or inclines, avoid sudden stops when loaded. Avoid abrupt sharp turns. Use low speed down hills. Clean only

while ascending (driving up) the ramp.

• Keep sparks, ﬂ ame and smoking materials away from batteries. Explosive gases are vented during normal operation.

• Charging the batteries produces highly explosive hydrogen gas. Charge batteries only in well-ventilated areas, away from open

ﬂ ame. Do not smoke while charging the batteries.

• Remove all jewelry when working near electrical components.

• Turn the key switch off (O) and disconnect the batteries before servicing electrical components.

• Never work under a machine without safety blocks or stands to support the machine.

• Do not dispense ﬂ ammable cleaning agents, operate the machine on or near these agents, or operate in areas where ﬂ ammable

liquids exist.

• Do not clean this machine with a pressure washer.

CAUTION!

• This machine is not approved for use on public paths or roads.

• This machine is not suitable for picking up hazardous dust.

• Do not use scariﬁ er discs and grinding stones. Nilﬁ sk-Advance will not be held responsible for any damage to ﬂ oor surfaces

caused by scariﬁ ers or grinding stones (can also cause damage to the brush drive system).

• When operating this machine, ensure that third parties, particularly children, are not endangered.

• Before performing any service function carefully read all instructions pertaining to that function.

• Do not leave the machine unattended without ﬁ rst turning the key switch off (O), removing the key and applying the parking

brake.

• Turn the key switch off (O) before changing the brushes, and before opening any access panels.

• Take precautions to prevent hair, jewelry, or loose clothing from becoming caught in moving parts.

• Use caution when moving this machine in below freezing temperature conditions. Any water in the solution or recovery tanks or

in the hose lines could freeze, causing damage to valves and ﬁ ttings. Flush with windshield washer ﬂ uid.

• The batteries must be removed from the machine before the machine is scrapped. The disposal of the batteries should be safely done in accordance with your local environmental regulations.

SAVE THESE INSTRUCTIONS

FORM NO. 56043097 / Adgressor™ / BR 850S, 850CS, 950S, 950CS, 1050S, 1050CS - 3

SPECIFICATIONS

Length

RIGHT SIDE VIEW

General Speciﬁ cations common to All Models

Height

Squeegee

Width

Chassis

Width

TOP VIEW

Machine Length 61 in. (155cm) Machine Height 54in. (137.5cm) Machine Chassis Width 32 in. (82cm)

Solution Tank Capacity 42 gal. (157l.) Recovery Tank Capacity 42 gal. (157l.)

Sound pressure level as per IEC 60704-1 (at operator) 68 dB(A)

Vibrations at the Hand Controls (ISO 5349-1) 1.12 m/s Vibrations at the Seat (EN 1032) 0.35 m/s

Transport Speed (Fwd. Maximum) 4.5 mph (7.3 kphm) Transport Speed (Rev. Maximum) 3.15 mph (5.1 kphm) Grade Ability (Transport) 20%/ 11.5 deg. Grade Ability (Working –Scrubbing) 8%/ 4.6 deg.

Wheel Drive Motor 1.5 hp, 1100 watt Vacuum Motor (3 stage) .75 hp, 560 watt

Vacuum Water Lift for one motor (Sealed) 68 in. (Open Hole Adapter 1”) 18 in. Vacuum Water Lift for two motors (Sealed) 78 in. (Open Hole Adapter 1”) 25 in.

Power Source (Batteries) (6) 6 volt @ 20 hour rate Battery Weight (305 amp) STD 90 lbs. (198kg) Battery Weight (395 amp) Opt. 121 lbs. (266kg) Battery Compartment Size (approx.) Height (Max.) 16.5 in. (42cm) Width (Max.) 22.25 in. (56.5cm) Length (Max.) 25.25 in. (64.1cm) Battery Chargers – see Electrical System Battery Section

2 2

4 - FORM NO. 56043097 / Adgressor™ / BR 850S, 850CS, 950S, 950CS, 1050S, 1050CS

revised 6/05

SPECIFICATIONS

Speciﬁ cations common to deck size

Model designation: (28”)=Adgressor 2820 D/C (32”)=Adgressor 3220 D/C, BR 850S/CS (35”)=Adgressor 3520 D/C, BR 950S/CS (38”)=Adgressor 3820 D/C, BR 1050S/CS

28” 32” 35” 38” Machine Width with Squeegee (English) 32.6 in. “B” 36.6 in. “C” 42.1 in. “D” 45.1 in. “E”

Metric 83.6cm “B” 93cm “C” 107cm “D” 115cm “E” Scrub Brush Size (qty of 2 for 28” and 32”)(qty of 3 for 35” and 38”)

(Disc) Diameter 14.25 in. (36cm) 16 in. (40.6cm) NA NA (Cylindrical) Diameter 5.75 in. (14.6cm) 5.75 in. (14.6cm) 5.75 in. (14.6cm) 5.75 in. (14.6cm) Length 27 in. (68cm) 31 in. (79cm) 34 in. (86cm) 37 in. (94cm)

Scrub Brush Motor (Disc) (1) 1.5 HP 1100 watts (1) 1.5 HP 1100 watts (3) .6 HP 448 watts (3) .6 HP 448 watts (Cylindrical) All Cylindrical Models use (2) .75 HP 560 watts

Scrub Brush Speed (Disc) 250 RPM 250 RPM 250 RPM 250 RPM (Cylindrical) 900 RPM 900 RPM 900 RPM 900 RPM

Minimum Aisle Turn Width 63 in. (160cm) 63 in. (160cm) 63 in. (160cm) 63 in. (160cm) Machine Net Weight* (English) 657 lbs. 657 lbs. 657 lbs. 657 lbs.

Metric 298 kg 298kg 298 kg 298 kg Machine Gross Weight** (English) 1553 lbs. 1553lbs. 1553 lbs. 1553 lbs.

Metric 705 kg 705kg 705 kg 705 kg Cleaning Width (scrubbing path) (English) 28 in. 32 in. 35 in. 38in.

Metric 71cm 81cm 89cm 97cm

5722m

66,880 ft

Coverage Rate Per Hour (4 MPH) (English) 49,280 ft2 56,320 ft2 61,600 ft Metric 4578m

5232m

Coverage Rate Per Hour (2.5 MPH) (English) 30,800 ft2 35,200 ft2 38,500 ft2 41,800 ft Metric 2861m

3270m

3576m

*Net Weight: Standard machine without options, empty solution and recovery tanks, without removable scrub brushes and no batteries installed. **Gross Weight: Standard machine without options, full solution tank and empty recovery tank, with removable scrub brushes and 305 AH

batteries. ***Listings for watts are maximum values.

6213m

3883m

FORM NO. 56043097 / Adgressor™ / BR 850S, 850CS, 950S, 950CS, 1050S, 1050CS - 5

MAINTENANCE SCHEDULE

Maintenance intervals given are for average operating conditions. Machines used in severe operational environments may require service more often.

MAINTENANCE ITEM Daily Weekly Monthly Yearly

Charge Batteries • Check/Clean Tanks & Hoses • Check/Clean/Rotate the Brushes/Pads • Check/Clean/Adjust the Squeegee • • Check/Clean Vacuum Shut-Off Float • Check/Clean the vacuum motor foam ﬁ lter(s) • Clean Hopper on Cylindrical System • Check Each Battery Cell(s) Water Level • Inspect Scrub Housing Skirts • Inspect and clean Solution Filter • Check Foot/ Parking Brake For Wear & Adjustment • Clean Solution Trough on Cylindrical System • Lubrication - Grease Fittings • * Check Carbon Brushes •

Note: See the individual machine system sections for maintenance information. * Have Nilﬁ sk-Advance: Check vacuum motor carbon brushes (Qty 2) once a year or after 300 operating hours. Check brush motor carbon brushes (Qty 4) once a year or after 500 operating hours. Note if the vacuum or brush motor brushes are 9.5mm (3/8 inches) or shorter, replace them. Check wheel drive motor carbon brushes every 500 operating hours. The original length of each brush is 20mm (25/32 inches). Replace when shorter than 9.5 mm (3/8 inches) to obtain the same motor efﬁ ciency as a new brush.

WARNING!

Turn the key switch off, set the parking brake and disconnect the battery before servicing the machine.

LUBRICATING THE MACHINE

Once a month, pump a small amount of grease into each grease ﬁ tting on the machine until grease seeps out around the bearings.

Grease ﬁ tting locations are:

• Squeegee Wheel Axle (qty 2)

• Steering Wheel Shaft Universal joint

Once a month, apply light machine oil to lubricate the:

• Steering Chain

• General Pivot Points for the Squeegee, Brush Linkage and Side Skirts

• Squeegee mount angle adjustment knob threads

BA TTERIES AND CHARGERS

Attention: See the electrical system manual section for battery installation and charger system requirements.

WHEEL DRIVE MOTOR GREASE SPECIFICATION

If drive motor gear housing grease replacement is needed when repair services are performed (Example inspection shows grease contamination). Clean gear sets and housing and re-pack. Use a multi-purpose, high melting point Lithium based grease, containing additives to provide antioxidant, anti-corrosion and good lubricity properties. Use a total quantity of 4.9-5.6 oz. (140-160g) of grease to service gear case.

The grease to be used must have excellent mechanical stability, water resistance and high load carrying capacity. The MR 158 grease is particularly recommended for automotive applications including wheel-bearing lubrication. Available NLGI consistency 3.

Average Drop Penetration ASTM Worked Grade Point °C (mm / 10) at 25 °C Base

MR 158 Grease 180 220 / 250 Lithium*

6 - FORM NO. 56043097 / Adgressor™ / BR 850S, 850CS, 950S, 950CS, 1050S, 1050CS

Advance Adgressor 2820, 3220, 3520, 3820, D/C Models

Nilfisk BR 850, 950, 1050, S/CS Models

Disc and Cylindrical

PM Checklist

Defect Codes

Customer A needs adjustment

B binding

Address C dirty or contaminated

D damaged, bent or torn

City St Zip L leaks

M missing

Model Serial Hours W worn out

Ref

1 Steering A B 2 Drive Pedal Operation (check for Fwd/Rev Drive & any neutral creep) A B D 3 Seat Safety Switch A D 4 Brakes (Service & Parking) A B W 5 Drive System Performance (reference SVR Manual for Curtis drive programmer speed

changes) 6 Scrub System (Raise/Lower and auto scrubbing functions) A B 7 Scrub Brush Pressure Settings (see SVR Manual programming, 3 different modes) A B 8 Squeegee System (Raise/Lower and auto lift in reverse function) A B 9 Vacuum Performance (sealed water lift 68" and 1- inch open hole adapter 18 inches) C L W

10 Solution Control (On/Off and flow volume Min/Max) A B L 11 Emergency Battery Disconnect Control Lever B D 12 Right Side broom Sweep System Accessory (cylindrical only) A B D 13 Tilt Steering Mechanism and Seat A B D 14 Optional Accessories (headlight, safety beacon, etc.) D 15 Main Control Board Special Program Options (check all applicable program settings,

reference SVR Manual 56043097); Example, Fault Recall Mode, Etc.

16 Battery Charger Operation D

noisy sluggish

Program as needed

OPERATIONAL INSPECTION ITEMS

Defect Codes

(circle)

Does

Not

Work

Does

Ref

17 Scrub Brushes, check for wear and rotate A B D W 18 Scrub Brush Motor(s) and disc machine gearboxes Carbon Brushes B L W 19 Scrub Brush Drive Belt, wear (cylindrical only) A D W 20 Scrub Brush Deck Actuator Motor A B D W 21 Brush Drive Plate Retainer Clips (disc) D M 22 Scrub Deck Skirts A B W 23 Solution Solenoid Valve C L 24 Solution Flow Control Valve and Linkage A B D W 25 Solution Tank, Delivery Hoses & Filter Clean Filter Screen C L 26 Vacuum Motor Carbon Brushes Wear Limit 3/8” W 27 Vacuum Motor Gaskets and Filters L W 28 Vacuum Float Ball & Cage Assembly Clean Float C M 29 Recovery Tank Cover Gasket C D L 30 Recovery Tank Drain Hose & Cap Flush C L 31 Squeegee Pick-Up Tool & Hose Back flush C L

Comments

VISUAL INSPECTION ITEMS

Defect Codes

(circle)

Not

Work

FORM NO. 56043097 / Adgressor™ / BR 850S, 850CS, 950S, 950CS, 1050S, 1050CS - 7

Does

Ref

32 Squeegee Blades (clean & rotate) A C D W 33 Squeegee Mount Wheel (lubricate) 1 Grease Zert A C W 34 Squeegee Lift Actuator Motor & Cable A B D 35 Battery Pack Condition (clean & water) Load Test C W 36 Front Drive Wheel Motor Carbon Brushes C W 37 Front Drive Tire (rim fastener torque) Tread Wear W 38 Brake Band Lining Wear Adjust Free Play A B W 39 Drive Pedal Linkage (neutral return) Torsion Spring A B 40 Steering Chain (lubricate & tension) 1/4” Deflection A B C 41 Steering Column (knob & plunger spring) also Universal Joint Grease A D 42 Rear Wheels W 43 Sweep Debris Tray (cylindrical only) C

Comments OK

VISUAL INSPECTION ITEMS (continued)

Defect Codes

(circle)

Not

Work

NOTE: For additional service information see service manual form number 56043097 and operators manual form numbers 56041581-56041583 & 56041568-56041570.

Defect Codes A needs adjustment C dirty or contaminated M missing B binding D damaged, bent or torn W worn out L leaks

WORK COMPLETED BY: ACKNOWLEDGED BY:

Service Technician Signature Date Customer Signature Date

8 - FORM NO. 56043097 / Adgressor™ / BR 850S, 850CS, 950S, 950CS, 1050S, 1050CS

KNOW YOUR MACHINE

1 Recovery Tank Cover 2 Solution Tank Fill Cover 3 Operator’s Seat 4 Solution Tank Drain Hose 5 Steering Wheel Tilt Adjust Knob 6 Brake Pedal / Parking Brake 7 Solution Flow Control Lever 8 Drive Pedal, Directional/Speed 9 Hopper (cylindrical models only)

10 Drive and Steer Wheel 11 Wheel Drive Circuit Breaker 12 Control Circuit Circuit Breaker 13 Emergency Stop Switch / Battery

Disconnect Lever 14 Scrub Deck 15 Rear Wheel 16 Battery Compartment (under seat) 17 Recovery Tank Shutoff Float

18 Vacuum Motor Filter Housing 19 Squeegee Assembly 20 Solution Filter 21 Recovery Tank Drain Hose 22 Machine Battery Connector 23 Control Panel 24 Squeegee Tilt Adjust Knob 25 Operator Seat Adjustment Lever 26 Smart Solutions 27 Tie Down Locations (3)

™

/ ECO Solution

™

OFF

FORM NO. 56043097 / Adgressor™ / BR 850S, 850CS, 950S, 950CS, 1050S, 1050CS - 9

CONTROL PANEL

A Scrub OFF Indicator B Scrub OFF Switch C Scrub Pressure Decrease Indicator D Scrub Pressure Decrease Switch E Scrub Pressure Increase Indicator F Scrub Pressure Increase Switch G Scrub Pressure / Hourmeter Display H Wand Switch Indicator I Wand Switch

J Key Switch K Battery Condition Indicator L Speed Select Switch M Speed Select Indicator N Horn Switch O Vacuum Switch P Vacuum System Indicator Q Solution System Indicator R Solution Switch

10 - FORM NO. 56043097 / Adgressor™ / BR 850S, 850CS, 950S, 950CS, 1050S, 1050CS

KNOW YOUR MACHINE

FUNCTIONAL DESCRIPTION OF CONTROL BUTTONS:

The controls on the Adgressor – BR850s and BR850CS were designed with one touch operation in mind. For single pass scrubbing the user can simply depress one switch and all systems on the machine will be ready to go.

For most single-pass scrubbing operations, the operator should only need to use the top three switches on the control panel. These are the Scrub System Off, Scrub Pressure Decrease, and Scrub Pressure Increase switches.

The scrub system switches can be programmed to operate three different ways. The ﬁ rst method of operation described below is the factory default setting. See the programming section for details.

Pressure Increase / Decrease Mode (Factory Default)

Scrub Off Switch (B) – Pressing this switch when the unit is in a scrub mode will cause the following to occur:

• The scrub brushes will turn off and the scrub deck will raise to the up position

• The solution ﬂ ow will be stopped

• The ﬁ rst time that this switch is pressed, the vacuum/squeegee system will NOT be turned off. This is so that any remaining water may be picked up without having to turn the vacuum back on. If this switch is pressed a second time (pressed after the scrub system has been turned off) the squeegee will raise and the vacuum will shut of after a 10 second delay.

• The travel speed limit will return to the transport speed setting

• The scrub off indicator will be green if the scrub system is off and ready to be activated. The indicator will be off if the scrub system has been activated. If the scrub system has been turned off and the scrub deck is not up yet, or if the scrub deck is up and there is no weight on the seat, the indicator will be red. If there is a fault in the scrub system this indicator will ﬂ ash red.

Scrub Pressure Decrease Switch (D) – If the scrub system is off, pressing this switch will cause the following to occur:

• The scrub system will be enabled with the scrub pressure set to the last used setting and the scrub deck will be lowered

• The vacuum system will be enabled and the squeegee will be lowered

• The solution system will be enabled

• The travel speed will be limited to the scrub speed setting

• As soon as the throttle is moved from the neutral position the scrub brushes will start turning and the vacuum will turn on. If the direction is forward the solution ﬂ ow will start. If the direction is reverse, the squeegee will raise and the solution ﬂ ow will be stopped.

• The scrub pressure decrease indicator will be green if the scrub system is on and the pressure is set at 1 or 2. The indicator will be off if the scrub system is off or if the scrub pressure is set to maximum. The indicator will be yellow if the scrub system has been enabled but the throttle is in neutral.

Scrub Pressure Increase Switch (F) – If the scrub system is off, pressing this switch will cause the following to occur:

• The scrub system will be enabled with the scrub pressure set to the last used setting and the scrub deck will be lowered

• The vacuum system will be enabled and the squeegee will be lowered

• The solution system will be enabled

• The travel speed will be limited to the scrub speed setting

• The scrub pressure increase indicator will be green if the scrub system is on and the pressure is set at 2 or 3. The indicator will be off if the scrub system is off or if the scrub pressure is set to minimum. The indicator will be yellow if the scrub system has been enabled but the throttle is in neutral.

FORM NO. 56043097 / Adgressor™ / BR 850S, 850CS, 950S, 950CS, 1050S, 1050CS - 11

KNOW YOUR MACHINE

Fixed Pressure Mode

Scrub System Off Switch - Pressing this switch when the scrub system is active will cause the following to occur:

• The scrub brushes will turn off and the scrub deck will raise to the up position

• The solution ﬂ ow will be stopped

• The travel speed limit will return to the transport speed setting

Light Scrub Pressure Select Switch – If the scrub system is off, pressing this switch will cause the following to occur:

• The scrub system will be enabled with the scrub pressure set to the light setting and the scrub deck will be lowered

• The vacuum system will be enabled and the squeegee will be lowered

• The solution system will be enabled

• The travel speed will be limited to the scrub speed setting

• The light scrub pressure indicator will be green if the scrub system is on and the light pressure has been selected. The indicator will be off if the scrub system is off. The indicator will be yellow if the scrub system has been enabled at the light pressure setting but the throttle is in neutral.

If the heavy scrub pressure setting is selected, pressing this switch will select the light scrub pressure. If the light scrub pressure is already selected, pressing this switch will have no effect.

Heavy Scrub Pressure Select Switch – If the scrub system is off, pressing this switch will cause the following to occur:

• The scrub system will be enabled with the scrub pressure set to the heavy setting and the scrub deck will be lowered

• The vacuum system will be enabled and the squeegee will be lowered

• The solution system will be enabled

• The travel speed will be limited to the scrub speed setting

• The heavy scrub pressure indicator will be green if the scrub system is on and the heavy pressure has been selected. The indicator will be off if the scrub system is off. The indicator will be yellow if the scrub system has been enabled at the heavy pressure setting but the throttle is in neutral.

If the light scrub pressure setting is selected, pressing this switch will select the heavy scrub pressure. If the heavy scrub pressure is already selected, pressing this switch will have no effect.

Light / Heavy Scrub Mode

Scrub System Off Switch - Pressing this switch when the scrub system is active will cause the following to occur:

• The scrub brushes will turn off and the scrub deck will raise to the up position

• The solution ﬂ ow will be stopped

• The travel speed limit will return to the transport speed setting

Light Scrub Pressure Select Switch – If the scrub system is off, pressing this switch will cause the following to occur:

• The scrub system will be enabled with the scrub pressure set to the last used light pressure setting and the scrub deck will be lowered

• The vacuum system will be enabled and the squeegee will be lowered

• The solution system will be enabled

• The travel speed will be limited to the scrub speed setting

12 - FORM NO. 56043097 / Adgressor™ / BR 850S, 850CS, 950S, 950CS, 1050S, 1050CS

KNOW YOUR MACHINE

If the heavy scrub pressure is active, pressing this switch will cause the pressure to return to the last used light scrub pressure setting. If the light scrub pressure is already selected when this switch is pressed, the scrub pressure will increase up to the maximum limit programmed for the light scrub pressure. The pressure will then roll-over to the minimum setting of 1.

Heavy Scrub Pressure Select Switch – If the scrub system is off, pressing this switch will cause the following to occur:

• The scrub system will be enabled with the scrub pressure set to the last used heavy pressure setting and the scrub deck will be lowered

• The vacuum system will be enabled and the squeegee will be lowered

• The solution system will be enabled

• The travel speed will be limited to the scrub speed setting

If the light scrub pressure is active, pressing this switch will cause the pressure to return to the last used heavy scrub pressure setting. If the heavy scrub pressure is already selected when this switch is pressed, the scrub pressure will increase up to the maximum limit programmed for the heavy scrub pressure. The pressure will then roll-over to the minimum value programmed for the heavy scrub mode.

Wand Switch (I) – This switch is used when an external scrub wand is used. Pressing this switch will turn the vacuum on continuously without regard to the throttle position. It will also enable the optional solution pump. If the scrub system was on it will be turned off. This includes turning off the scrub brushes and raising the scrub deck, turning the solution ﬂ ow off (to the scrub deck) and raising the squeegee. NOTE: automatic shutoff

of the vacuum motor when the recovery tank is full is disabled when the wand is enabled. The ﬂ oat in the recovery tank will still prevent water from entering the vacuum motor, but the motor will not shut off.

Key Switch (J) – Main power switch Speed Select Switch (L) – This switch will allow the operator to select the transport speed limit while the scrub system is enabled thereby allowing

scrubbing at a higher rate of speed. This option can be disabled if desired. See the programming section for details. The transport and scrub speed limits can be programmed using a Curtis handheld programmer. Refer to the Curtis Speed Control manual section

for details. Horn Switch (N) – This switch will sound the horn as long as the switch is held.

The horn also functions as an automatic back-up alarm when the throttle is moved to the reverse position. The volume of the back-up alarm is programmable. It can also be programmed to provide an annunciation feature that will sound whenever the machine is in motion. See the programming section for details.

Vacuum Switch (O) – This switch is used to turn the vacuum system on or of f. When the vacuum is on the squeegee will lower (unless the machine is in reverse) and when the vacuum is off the squeegee will raise. Pressing this switch will alternate between on and off. The vacuum will only turn on when the throttle is moved from the neutral position. It will remain on for 10 seconds after the throttle returns to neutral.

The vacuum also has an automatic shutoff feature that will turn the vacuum and scrub systems off if the recovery tank becomes full. This feature can be disabled if desired. See the programming section for details.

Solution Switch (R) - This switch is used to turn the solution system on or off. Pressing this switch when the scrub system has been activated will alternate between on and off. The solution ﬂ ow will only turn on when the throttle is moved from the neutral position in the forward direction. The solution ﬂ ow will turn off if the throttle returns to neutral or is moved to reverse.

Pressing this switch when the scrub system is off will momentarily turn the solution ﬂ ow on to allow pre-wetting of the scrub brushes.

FORM NO. 56043097 / Adgressor™ / BR 850S, 850CS, 950S, 950CS, 1050S, 1050CS - 13

KNOW YOUR MACHINE

DESCRIPTION OF INDICATORS ON THE CONTROL PANEL:

In general, the following guidelines apply to the control panel indicators: A steady red indicator means that the function is inhibited for some reason. For example, if the scrub system is off and the operator is not on the seat, the scrub system indicator will be red indicating that the system cannot be turned on until the operator is on the seat. A ﬂ ashing red or yellow indicator means that a fault has occurred in the particular system. An example of this would be an over-current fault. A yellow indicator means that the particular function has been enabled but is not currently on. For example, if a scrub mode is selected and the throttle is in neutral, the scrub system, vacuum, and solution indicators will all be yellow indicating that the systems are enabled and ready to turn on when the throttle is moved to forward or reverse. A green indicator means that the particular system is on. A ﬂ ashing green indicator means that the particular system is in a delayed-off condition. An example of this is when a scrub mode is selected and the throttle goes from forward or reverse to neutral. When this happens the vacuum indicator will ﬂ ash green indicating that the vacuum is still on but that it will be turning off after the delay period.

Scrub Off Indicator (A):

• This indicator will be green if the scrub system is off and ready to be activated.

• This indicator will be red if the scrub system has been turned off and the scrub deck is not up yet, or if the scrub deck is up and there is no weight on the seat.

• This indicator will ﬂ ash red if there is a fault in the scrub system.

• This indicator will be off if the scrub system has been activated.

Scrub Pressure Decrease Indicator (C):

• This indicator will be yellow if the scrub system is enabled but the drive pedal is at neutral and the current scrub pressure is at 2 or more.

• This indicator will be green if the scrub system has been turned on, the current scrub pressure is at 2 or more and the machine is moving in either direction.

• This indicator will be off if the scrub system has been turned OFF or the scrub pressure is set at 1.

Scrub Pressure Increase Indicator (E):

• This indicator will be yellow if the scrub system is enabled but the drive pedal is at neutral and the current scrub pressure is at 8 or less.

• This indicator will be green if the scrub system has been turned on, the current scrub pressure is at 8 or less and the machine is moving in either direction.

• This indicator will be off if the scrub system has been turned OFF or the scrub pressure is set at 9.

Scrub Pressure/Hourmeter Display (G):

The single character display on the control panel is primarily used as a display for the scrub pressure. This display is also used to display the machine hours and any control system fault codes. If any of the systems on the machine are on or if the throttle is not in neutral, the display will indicate the scrub pressure setting (1-9). If the scrub system is off the display will indicate 0. Upon power-up or if the machine has been idle for at least ten seconds with all systems turned off, the display will indicate the machine hours. The format for the display of the hours is as follows:

Example 123.4 hours

• The display will indicate 1 followed by a short blank period

• The display will indicate 2 followed by a short blank period

• The display will indicate 3 followed by a short blank period

• The display will indicate _ followed by a short blank period, this is used as a decimal point to indicate tenths of hours

• The display will indicate 4 (tenths) followed by a long blank period

• The display sequence will repeat

Wand Switch Indicator (H):

• This indicator will be green if the Wand Switch has been turned ON.

• This indicator will be off if the Wand Switch has been turned OFF.

Speed Selector Indicator (M):

• This indicator will be green if a scrub mode has been selected and the faster scrub speed has been selected.

• This indicator will be off if the Speed Select Switch has been turned OFF.

Vacuum System Indicator (P):

• This indicator will be green if the vacuum is on.

• This indicator will ﬂ ash green if the vacuum is in the 10 second delayed-off condition.

• This indicator will be yellow if the vacuum is enabled but the drive pedal is in neutral.

• This indicator will ﬂ ash yellow if there is a vacuum system fault.

• This indicator will be off if the vacuum is disabled and turned off.

Solution System Indicator (Q):

• This indicator will be green if the solution is on.

• This indicator will be yellow if the solution is enabled but the drive pedal is in neutral.

• This indicator will ﬂ ash yellow if there is a solution system fault.

• This indicator will be off if the solution is disabled and turned off.

14 - FORM NO. 56043097 / Adgressor™ / BR 850S, 850CS, 950S, 950CS, 1050S, 1050CS

KNOW YOUR MACHINE

DESCRIPTION OF THE BATTERY CONDITION INDICATORS

The battery condition indicator (J) consists of three lights, a green (G), a yellow (Y), and a red (R). The voltage indication will change based on the cutoff level (standard or alternate) selected in the control unit. The battery voltage ranges for the various indications are listed below:

Standard Alternate

Green 34.00+ 34.50+ Green & Yellow 33.00-33.99 34.00-34.49 Yellow 32.00-32.99 33.50-33.99 Yellow & Red 31.50-31.99 33.00-33.49 Red 31.00-31.49 32.50-32.99 Flashing Red/Cutoff <31.00 <32.50

NOTE: Refer to service manual for selection of alternate cut-off level. Once the low voltage cutout level has been reached (ﬂ ashing red indicator) the batteries must be FULLY recharged to reset the battery condition indicator. The scrub system will not function until the indicator has been reset.

DESCRIPTION OF HOURMETER / STATUS DISPLAY

The single character display in the upper right corner of the control panel is primarily used as a display for the hourmeter function. This display is also used to display the following information depending upon which mode the control is in:

• Error codes*

• Brush pressure adjustment setting for the scrub mode*

• Display of control system default parameters*

• Recovery tank FULL indicator*

* NOTE: Reference (in the Electrical System manual section) the Main Control Board Troubleshooting Guide and the Control Board Special Program Options sections. These sections will explain the machine error code descriptions and scrub system controller default parameter changes.

FORM NO. 56043097 / Adgressor™ / BR 850S, 850CS, 950S, 950CS, 1050S, 1050CS - 15

STEERING SYSTEM

STEERING COLUMN ASSEMBLY SHROUD REMOVAL

Upper Column

1 See Figure 1. Remove the center Wheel Adapter (A) from the steering wheel. Pry it off using a ﬂ at bladed screwdriver. 2 Remove the steering shaft retainer Hex Nut (B) (use a 3/4” socket wrench) and the two Washers (C & D). Next pull straight back on the steering

wheel to remove it from the metal Wheel Adapter (E).

3 Pull off the keyed metal wheel adapter from the steering shaft by using a two-jaw gear puller. With the wheel adapter of f the loose Plastic Trim

Cup (F) can now be removed.

4 Remove the (4) Screws (G) securing the Column Shroud (H) and pull it off from the Column Base (I).

Lower Column

1 Tilt the steering wheel column as far back (close to the seat) as possible. 2 Remove the tilt column release Knob (J) (threaded) from its shaft. 3 Remove the (4) Screws (K) securing the Lower Shroud (L) and next pull the shroud far enough away from the column base to clear the tilt

release shaft through the shroud opening. Note: This will take some effort in prying the ﬂ exible plastic shroud around the movable tilt shaft.

4 Grip the shroud and pull up to completely release it from the steering column base and the foot brake assembly.

Remove plug

to access/grease

universal joint

FIGURE 1

View from back

side of panel (I)

FRONT

16 - FORM NO. 56043097 / Adgressor™ / BR 850S, 850CS, 950S, 950CS, 1050S, 1050CS

STEERING SYSTEM

STEERING CHAIN REMOVAL AND TENSIONING

1 Turn the master key switch off and separate the battery pack emergency disconnect (13). 2 See Figure 2. From underneath the front of the machine loosen the (4) (M) Screws and push the lower steering column to the rear of the

machine. This is done to separate the Chain (N) from the Steer Sprocket (O). Service Note: Use a 5/8” socket with 3” extension to loosen screws and also correctly position the large hole in the Steer Plate (P) in order to access the far back left screw.

3 Remove both Master Links (Q) that secure the chain to the Steer Plate (P) then remove the chain from the chassis. 4 Reassemble parts in reverse order and adjust chain tension so that there is about 3/16”-1/4” (4.7 – 6.4mm) total deﬂ ection with moderate

pressure applied at the Mid-point (R) (as shown). Service Tip Note: Use a pry bar or shims between the chassis and steer column to help secure the tension adjustment when tightening the (4) steering column mounting screws.

Maintenance

1 Inspect the chain for looseness and binding, re-tension the chain to 3/16”-1/4” (4.7 – 6.4mm) deﬂ ection by following the above adjustment

instructions.

2 Keep all of the steer chain links oiled to prevent excessive wear and binding.

FIGURE 2

View from under

the machine

FRONT

FORM NO. 56043097 / Adgressor™ / BR 850S, 850CS, 950S, 950CS, 1050S, 1050CS - 17

WHEEL DRIVE SYSTEM

GENERAL FUNCTIONAL OVERVIEW

See Figures 1 & 2. An 1100-watt 1.5 HP (permanent magnet) 36V motor/gear transmission combination wheel (M3) unit is used to propel all machines. A Curtis model 1237 PMC solid state speed controller (A1) regulates (outputs) the variable speed Fwd/Rev wheel drive motor functions. The controller unit is located to the left of the operator seat, behind the electrical access panel. The potentiometer R1 mounted to the operator’s foot pedal, inputs to the (A1) controller the machine operator’s desired speed and directional demands.

DRIVE MOTOR SYSTEM CONTROLLER FUNCTION OVERVIEW

See Figure 2. To make the A1 speed controllers internal control circuits operational (power it up) the two switches S1 (key) and S2 (seat) must be closed. This circuit inputs a positive (+) 36V to the A1 speed controls pin terminal #15 (*KSI). The F2 circuit breaker 70 Amp supplies the positive high current (load) circuit input to the B+ controller terminal (Blu/Orn wire). The black wire from the negative (-) battery standoff supplies the battery ground input to the B- terminal for both the control and load circuits.

See Figure 3. Depressing the foot pedal in either Fwd or Rev will move the 5K Ohm (R1) potentiometer shaft off its centered balanced (neutral) setting of approximately 2500 Ohms. With this pot shaft movement the pot’s resistance value changes which generates a variable voltage signal (0-5 volts). These control board voltage input signals are what energizes the Fwd & Rev directional relays, which selects the motor polarity and what also manages switches the battery voltage On and Off (**PWM) that varies the motor speed.

*KSI: Key Switch Input **PWM: Pulse Width Modulation, also called “chopping” is a technique that switches battery voltage to the motor ON and OFF very quickly, thereby controlling the speed of the motor.

DRIVE MODE SELECTION OPERATION OVERVIEW

The A1 speed Controller allows operation in two distinct modes: mode 1 (M1) & mode 2 (M2). Mode 1 (M1) is the transport speed range and is automatically selected when the scrub system is OFF (deck up). This allows maximum variable

vehicle speed operation. Mode 2 (M2) is the reduced slower scrub speed range and is automatically selected when the scrub mode is ON (deck down). The operator can over-ride the reduced M2 scrub speed by pressing the dash panel Speed Select Switch (L). This allows the operator to scrub at

the higher M1 transport speed. Note the Indicator Light (M) will be green when the faster transport speed is selected.

THE SPEED SELECTOR CIRCUIT INPUT

The main controller E1 will output a 30-31 volt (approximately) battery positive (B+) signal from the speed limit terminal J4-2 (Brn/Wht wire). This positive signal connection delivers the required A1 speed control input to pin #11. The controller is now in scrub speed (mode 2) and the speed control mode select is switched ON. Pressing the dash panel Speed Select Switch (L) its Indicator Light (M) turns ON. This action leaves the speed control input (pin #11) ﬂ oating and actively switches it Off, 0 volts (pulling it to B-) changing the output to the transport speed (mode 1).

Note: The maximum machine drive wheel speed setting for the two drive modes 1 & 2 can be changed by using the Curtis handheld programmer. Reference the Curtis programmer instructions found in the electrical system manual section to change speed settings from their original factory speciﬁ cations.

18 - FORM NO. 56043097 / Adgressor™ / BR 850S, 850CS, 950S, 950CS, 1050S, 1050CS

WHEEL DRIVE SYSTEM

FIGURE 1

RED

CIRCUIT BREAKER, 70 AMP

RED

CIRCUIT BREAKER, 10 AMP

J4-1

J4-7

J2-8

BRN/YEL

HORN +

HORN -

ACC

J2-7

BRN/YEL

B+ 2

SPST KEY

J2-6

B+ 1

J2-3

VACUUM

SOLUTION

J2-2

BRN

J2-10

KEY SW.

THERMISTOR

CONTROL BOARD

BRUSH

SPEED MODE CONTROL

J2-1

J4-2

J3-1

INTERFACE

FIGURE 2

VIO

GRA

YEL

CONTACT N.O.

ORN

PIN 7 - PROG 1 DRIVER

PIN 16 - PROG2 DRIVER

PIN 14 - POWER ENABLE

PIN 4 -- SPEED LIMIT

PIN 1 -- POT. HI

PIN 2 -- POT. WIPER

PIN 3 -- POT. LO

SPEED CONTROLLER

BLU/ORN

PIN 15 -- KSI

BLU/ORN

B+

BRN/WHT

MAIN CONTACTOR

YEL/GRN

BLK

B-

RED/GRN

PIN 8 -- MAIN

YEL/BLK

M-

PIN 11 - - M ULTI MOD E

MOTOR

WHEEL DRIVE

Amps = 37

BRN/BLK

BRN

SW, SEAT

ORN

FUSE, 1 A.

ORN

ORN/BLU

RED/BLK

J3-4

I -- VAC

I -- BRUSH

J4-6

J4-12

J4-5

J3-3

J3-2

J4-11

J4-10

J4-4

STATUS

SEAT SW.

FOR./REV.

FORWARD

J2-9

SPEED LIMIT

J4-9

POT. LO

J4-3

POT. HIGH

B- 1

B- 2

B- 3

B- 4

J3-5

J4-8

J2-5

J3-6

BLU/BLK

WHT/YEL

YEL

123

VIO

POT. 5K OHM

BLK

FORM NO. 56043097 / Adgressor™ / BR 850S, 850CS, 950S, 950CS, 1050S, 1050CS - 19

WHEEL DRIVE SYSTEM

R1 Voltage Values

0 – 2.5V Reverse

2.5 – 5V Forward

FIGURE 3

A1 Speed Control

Pin Connection

View: Non-stem end

5K Ohms

Main Control

Board (Partial)

WHT/YEL

Speed Limit

Pot. LO

Pot. HI

This drawing shows additional controller input circuit detail. The R1 pot is shown in the neutral position. Resistance is measured between pot low and pot wiper.

J2-9

J4-9

J4-3

YEL

VIO

16 15 14 13

8765

YEL

WHT/YEL

10 9

YEL

VIO

FRONT

VIO

GRA

YEL

WIPER

FIGURE 4

KSI

DRIVER

POWER

ENABLE

13 12

POT LOW

SPEED

LIMIT

MULTI

MODE

10 9

POT HIGH

POT

WIPER

PROGRAM 2

DRIVER

16 15

MAIN

PROGRAM 1

Used (10 pins)

Not Used (6 pins)

20 - FORM NO. 56043097 / Adgressor™ / BR 850S, 850CS, 950S, 950CS, 1050S, 1050CS

Low Current A1 Speed Control Pin Key Detail

Pin # Wire Color Controller Pin Description & Function

1 Vio Throttle Pot R1 pot high input 2 Gra Throttle Pot R1 pot wiper input 3 Yel Throttle Pot R1 pot low input 4 Wht/Yel Speed limit pot input Tied to Pot High 5 – Open not used 6 – Open not used

7 Red/Blk 8 Yel/Grn Main Contactor Output.

9 – Open not used 10 – Open not used 11 Brn/Wht Mode Select 1: Drive motor scrub speed input from the (E1) 12 – Open not used 13 – Open not used 14 Orn/Blu 15 Orn KSI (key switch input): Battery (+) powers up controller logic circuits

16 Blu/Blk

Program #1 Auxiliary Driver: Battery (-) output to the main controller (E1) to turn on (activate) all auto scrub functions. Pin #7 will read approximately 36 volts when the foot-pedal is in Fwd or Rev.

Status Fault: Speed controller fault output to main control panel fault indicator light (accessory wand)

Program #2 Auxiliary Driver: Battery (+) output to the main controller (E1) that controls the entire auto reverse machine functions. How the program #2 functions, is when the foot-pedal is placed in Rev, Pin #16’s voltage signal to E1 is lost (0 volts). This lost open circuit signal is what tells the E1 controller to turn on the back-up alarm (H1), turn off the solution solenoid valve (L1) and raise the squeegee tool (changes polarity to the Lift motor M2).

WHEEL DRIVE SYSTEM

WHEEL DRIVE TROUBLESHOOTING GUIDE

Problem Possible Cause

• Wheel drive motor will not run in

forward and reverse.

• Wheel drive in one direction only, loss of either forward or reverse.

• Hourmeter/status display shows an error 03 fault code.

* = See Curtis Speed Control Troubleshooting Section.

• Batteries need charging (low battery voltage, recharge batteries)

• Wheel Drive Motor Circuit Breaker (F2) tripped (reset 70A circuit breaker)

• Control Circuit Circuit Breaker (F3 & F4) tripped

(reset circuit breaker)

• Parking Brake (6) set (release parking brake)

• Emergency Stop Switch (13) tripped (reconnect battery to reset)

• Safety Switch (S2) in seat not closed (check seat switch)

• Defective Wheel Drive Motor (replace motor) *

• Defective Throttle Potentiometer (R1) (replace) *

• Test the Fwd & Rev (R1) wiring outputs (pins 1, 2 & 3) at the

speed control for an open. Repair wiring or replace the R1 pot.

• Controller can’t change electrical polarity to wheel motor replace the (A1) speed control.

• Speed controller has sensed an operation error code fault. (see the Status LED Fault Codes (Table 1) in the Electrical System)

FORM NO. 56043097 / Adgressor™ / BR 850S, 850CS, 950S, 950CS, 1050S, 1050CS - 21

WHEEL DRIVE SYSTEM

STEERING SPINDLE AND WHEEL DRIVE MOTOR ASSEMBLY REMOVAL

WARNING!

Turn the main key switch (J) to the off position and disconnect the battery pack by pushing in the emergency disconnect lever (13). Next block both rear wheels so machine can’t roll.

1 See Figure 5. Remove the brake foot pedal (A) secured by the (2) screws (D) that fasten the pedal mount bracket to the chassis allowing

access to the spindle retainer nut.

2 Pull out the brake rod (E) and use a 1-7/16” socket to remove the large spindle nut (F) from its shaft. 3 From underneath the front of the machine remove the (4) (G) screws and push the lower steering column to the rear of the machine. This

is done to separate the chain (H) from the steer sprocket (I). Service Note: Use a 5/8” socket with 3” extension to remove screws and also correctly position the large hole in the steer plate (J) in order to access the far back left screw.

4 On the right side of the drive motor remove the motor wiring cover and observe the (2) wires (red/green & yellow/black) attached to the motor

terminal connections for reassembling (shown in Figure 4.5). Then remove the wires using a 13mm wrench.

5 Remove the (1) socket head cap screw (use a 3mm hex wrench) that retains the motor wiring harness P-clamp, then pull wiring to the rear of

the machine.

WARNING!

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

6 Safely jack up or lift the front of the machine to a height of approximately 16 inches (41 cm) to remove the wheel motor spindle assembly. Place

wood blocking under both front frame legs to support machine when removing the wheel /spindle assembly. Service Note: Be careful not to damage the threads and bearing surfaces when guiding the spindle shaft down through the frame opening.

7 Inspect bearings and shaft seal and replace as needed. 8 T o remove the steer spindle weldment (K) you must remove the steer plate (J) (with splash fender) held by (4) (L) ﬂ at head socket screws (use

a 5mm hex wrench) then separate the brake return spring and lay these removed parts to the side. Next remove the (4) item (M) ﬂ at head socket screws (55mm length) then ﬁ nish removing the spindle weldment.

9 See the “Drive Tire Removal” section for further disassembly steps. 10 Re-assemble in reverse order and tighten the spindle shaft nut (F) to 20ft/lbs (27 Nm) to eliminate any bearing play.

FRONT

Radius

FIGURE 4.5

Red/Grn

Wire

DRIVE TIRE REMOVAL

1 Follow the steps 1-8 in the “Steer Spindle and Wheel Drive Motor Assembly Removal” section. 2 See Figure 5. Remove the socket head cap screw (O) (use a 6mm hex key wrench) that fastens the right side brake lever to the support mount

(N). Then separate the brake lever from the support mount.

3 Carefully separate (tap off) the motor end bell housing (P) from the main motor case. Service Tip: To remove the housing use a brass drift or

piece of hard wood and strike the end bell edge evenly at points 120 degrees apart to slowly work it from the motor bearing.

4 Using a 5mm hex key wrench remove the (8) socket cap screws (Q) that secure the drive tire (R) to the motor drive hub and complete the tire

removal.

5 Install a new drive tire and tighten (torque) the (8) socket cap screws (Q) to 12 Ft/Lbs (16.2 N/M). Service Tip: Apply a small amount of Loctite

242 to all the cap screws to prevent the fasteners from backing out.

6 Re-assemble in reverse order following all the steps outlined in the steer spindle and drive motor removal section.

Yel/Blk

Wire

22 - FORM NO. 56043097 / Adgressor™ / BR 850S, 850CS, 950S, 950CS, 1050S, 1050CS

WHEEL DRIVE SYSTEM

FIGURE 5

FRONT

FORM NO. 56043097 / Adgressor™ / BR 850S, 850CS, 950S, 950CS, 1050S, 1050CS - 23

+ 57 hidden pages