Nilfisk-Advance 56392290, 56392210, 56392220, 56392230, 56392240 Service Manual

9/95 revised 3/01 Form Number 56043025

SERVICE MANUAL
Advance MODELS 56392290, 56392210,
56392220, 56392230, 56392240, 56392270
Nilfisk MODELS 56391372, 56392823,
56392824

Convertamatic™ 28/32/38LX
Hydro-Retriever™ 280/320/380HD
BA 700/800/1000

FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD - 3

TABLE OF CONTENTS

SAFETY ...............................................................................................................................................................................4

SPECIFICATIONS & MAINTENANCE ............................................................................................................................. 5-8

KNOW YOUR MACHINE ............................................................................................................................................... 9-10

SOLUTION SYSTEM ................................................................................................................................................... 11-18

MAINTENANCE ............................................................................................................................................................... 11

FLOW CONTROL VALVE REPLACEMENT - BA 700 / 28LX / 280HD ..................................................................... 11-12

FLOW CONTROL VALVE REPLACEMENT - BA 800, 1000 / 32, 38LX / 320, 380HD ................................................... 12

SOLUTION CABLE REPLACEMENT - BA 700 / 28LX / 280HD ......................................................................................13

SOLUTION CABLE REPLACEMENT - BA 800, 1000 / 32, 38LX / 320, 380HD ..............................................................14

SOLUTION SOLENOID VALVE REMOVAL - BA 700 / 28LX / 280HD ............................................................................15

SOLUTION SOLENOID VALVE REMOVAL - BA 800, 1000 / 32, 38LX / 320, 380HD ....................................................16

SOLUTION SOLENOID VALVE DISASSEMBLY AND CLEANING.................................................................................17

TROUBLESHOOTING ..................................................................................................................................................... 18

BRUSH DRIVE SYSTEM ............................................................................................................................................. 19-25

BRUSH DRIVE SYSTEM MAINTENANCE ......................................................................................................................19

BELT TENSION ADJUSTMENT - BA 700 / 28LX / 280HD ........................................................................................ 19-20

BELT TENSION ADJUSTMENT - BA 800, 1000 / 32, 38LX / 320, 380HD ......................................................................20

BRUSH LIFT LIMIT SWITCHES ................................................................................................................................ 21-23

LIMIT SWITCH ADJUSTMENT ................................................................................................................................ 21-22

LIMIT SWITCH REPLACEMENT ...................................................................................................................................23

BRUSH LIFT ACTUATOR REPLACEMENT ....................................................................................................................24

TROUBLESHOOTING ..................................................................................................................................................... 25

VACUUM SYSTEM ...................................................................................................................................................... 26-32

VACUUM SYSTEM MAINTENANCE ......................................................................................................................... 26-27

VACUUM MOTOR REMOVAL - BA 700 / 28LX / 280HD ................................................................................................ 27

VACUUM MOTOR REMOVAL - BA 800, 1000 / 32, 38LX / 320, 380HD ........................................................................ 28

SQUEEGEE MAINTENANCE ..........................................................................................................................................29

SQUEEGEE ADJUSTMENT (BEFORE SN 1081111) .....................................................................................................29

SQUEEGEE ADJUSTMENT (AFTER SN 1081110) ........................................................................................................30

TROUBLESHOOTING ............................................................................................................................................... 31-32

WHEEL DRIVE SYSTEM ............................................................................................................................................. 33-37

WHEEL DRIVE SYSTEM MAINTENANCE ......................................................................................................................33

CHAIN REMOVAL AND ADJUSTMENT .................................................................................................................... 33-34

DRIVE MOTOR REPLACEMENT ....................................................................................................................................34

DRIVE WHEEL REPLACEMENT .....................................................................................................................................35

TROUBLESHOOTING ..................................................................................................................................................... 36

POTENTIOMETER ADJUSTMENT ................................................................................................................................. 37

BATTERY SYSTEM ..................................................................................................................................................... 38-39

BATTERY MAINTENANCE ..............................................................................................................................................38

BATTERY TESTING ........................................................................................................................................................ 39

ELECTRICAL SYSTEM................................................................................................................................................ 41-46

ELECTRICAL COMPONENT LOCATION........................................................................................................................41

WIRING DIAGRAMS / SCHEMATICS ....................................................................................................................... 42-46

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

4 - FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD

SAFETY
CAUTIONS AND WARNINGS

SYMBOLS

Nilfisk-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

Specific 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.

• Keep sparks, flame 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

flame. 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 flammable cleaning agents, operate the machine on or near these agents, or operate in areas where flammable

liquids exist.

• Do not clean this machine with a pressure washer.

• Do not operate this machine on ramps or inclines of more than an 8.7 percent gradient.

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 scarifier discs and grinding stones. Nilfisk-Advance will not be held responsible for any damage to floor surfaces

caused by scarifiers 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 first 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 fittings. Flush with windshield washer fluid.

SAVE THESE INSTRUCTIONS

FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD - 5

_________________________________________________________________________________________________________________

SPECIFICATIONS - BA 700 / 28LX / 280HD

Dimensions English (Metric)

Scrub Brush Diameter 14.5 inches (36 cm)
Scrub Brush Path 28 inches (71 cm)
Scrub Brush Pressure 140 lbs. (63.5 kg)
Scrub Brush Speed 155 rpm (155 rpm)
Squeegee Size 33 inches (108 cm)
Machine Length 59 inches (150 cm)
Machine Width 30.25 inches (77 cm)
Machine Height 45.75 inches (116 cm)
Drive Wheel 10 inch (25 cm) solid, traction tire
Solution Tank Capacity 33 (US) gal (125 l)
Recovery Tank Capacity 31 (US) gal (118 l)
Coverage Rate 25,500 sq. ft (2,369 m2) per hour
Machine Weight 1520 lbs. (690 kg) Gross Vehicle Weight (GVW)

GVW – Standard machine without options, maximum size
batteries, full solution tank, empty recovery tank and brushes
770 lbs. (349 kg) shipping weight

General Specifications

Brush Motor 36 volt, 2 1/4 hp dc motor
Wheel Drive Motor 36 volt, 3/4 hp dc motor
Vacuum Motor 36 volt, 1 hp dc motor
Brush Drive Dual worm gear 10 to 1 reduction gear box
Squeegee Type 4 sided, curved, self tracking
Speed Control Electronic, fully variable forward/reverse
Batteries (6) 6 volt 244 AH (std)

SPECIFICATIONS

6 - FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD

SPECIFICATIONS

_________________________________________________________________________________________________________________

SPECIFICATIONS - BA 800 / 32LX / 320HD

Dimensions English (Metric)

Scrub Brush Diameter 17 inches (43 cm)
Scrub Brush Path 32 inches (81 cm)
Scrub Brush Pressure 160 lbs. (72.5 kg)
Scrub Brush Speed 120 rpm (120 rpm)
Squeegee Size 45 inches (114 cm)
Machine Length 62.5 inches (159 cm)
Machine Width 37 inches (94 cm)
Machine Height 46.75 inches (119 cm)
Drive Wheel 10 inch (25 cm) solid, traction tire
Solution Tank Capacity 33 gal (125 l)
Recovery Tank Capacity 31 gal (118 l)
Coverage Rate 32,500 sq. ft (3,019 m2) per hour
Machine Weight 1,718 lbs. (779 kg) Gross Vehicle Weight (GVW)

GVW – Standard machine without options, maximum size
batteries, full solution tank, empty recovery tank and brushes
825 lbs. (374 kg) shipping weight

General Specifications

Brush Motor 36 volt, 2 1/4 hp dc motor
Wheel Drive Motor 36 volt, 3/4 hp dc motor
Vacuum Motor 36 volt, 1 hp dc motor
Brush Drive Dual worm gear 10 to 1 reduction gear box
Squeegee Type 4 sided, curved, self tracking
Speed Control Electronic, fully variable forward/reverse
Batteries (6) 6 volt 350 AH (std)

FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD - 7

______________________________________________________________________________________________

SPECIFICATIONS - BA 1000 / 38LX / 380HD

Dimensions English (Metric)

Scrub Brush Diameter 20 inches (50 cm)
Scrub Brush Path 38 inches (97 cm)
Scrub Brush Pressure 160 lbs. (72.5 kg)
Scrub Brush Speed 120 rpm (120 rpm)
Squeegee Size 45 inches (114 cm)
Machine Length 62.5 inches (159 cm)
Machine Width 40 inches (102 cm)
Machine Height 46.75 inches (119 cm)
Drive Wheel 10 inch (25 cm) solid, traction tire
Solution Tank Capacity 33 gal (125 l)
Recovery Tank Capacity 31 gal (118 l)
Coverage Rate 35,000 sq. ft (3,251 m2) per hour
Machine Weight 1,747 lbs. (792 kg) Gross Vehicle Weight (GVW)

GVW – Standard machine without options, maximum size
batteries, full solution tank, empty recovery tank and brushes
878 lbs. (398 kg) shipping weight

General Specifications

Brush Motor 36 volt, 2 1/4 hp dc motor
Wheel Drive Motor 36 volt, 3/4 hp dc motor
Vacuum Motor 36 volt, 1 hp dc motor
Brush Drive Dual worm gear 10 to 1 reduction gear box
Squeegee Type 4 sided, curved, self tracking
Speed Control Electronic, fully variable forward/reverse
Batteries (6) 6 volt 350 AH (std)

SPECIFICATIONS

8 - FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD

______________________________________________________________________________________________

MAINTENANCE SCHEDULE

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

Once a Once a Once a

MAINTENANCE ITEM Daily Week Month Year

Clean and inspect the tanks and hoses X

Clean the brushes and pads X

Clean the squeegee X

Charge the batteries X

Check battery water level X

Lubrication X

*Vacuum motor carbon brushes X

*Have your Nilfisk-Advance Dealer check the motors’ carbon brushes once a year or after 300 operating hours.

_________________________________________________________________________________________________________________

AFTER EACH USE

1 Raise the brushes (or pads) and raise the squeegee. Move the machine to a service area.
2 Turn the Master Key Switch (11) OFF and remove the key.
3 To empty the solution tank, take the Solution Drain Hose off its hanger. Direct the hose to a designated “DISPOSAL SITE” and

remove the plug. Rinse the tank with clean water. Inspect the solution hoses; replace if kinked or damaged.

4 To empty the recovery tank, take the Recovery Drain Hose (12) off its hanger. Direct the hose to a designated “DISPOSAL SITE”

and remove the plug. Rinse the tank with clean water. Inspect the recovery and vacuum hoses; replace if kinked or damaged.

5 Remove the brushes or pad holders. Rinse the brushes or pads with warm water and hang them up to dry. Allow buffing pads

to dry completely before using again.

6 Remove the Squeegee (13), rinse it with warm water and hang it up to dry.
7 Check the “Maintenance Schedule” above and perform any required maintenance before storing the machine in a clean, dry

place.

______________________________________________________________________________________________________

LUBRICATING THE MACHINE

Once a month, pump grease into each grease fitting on the machine until grease seeps out around the bearings.

Grease fittings locations are:

• One on the front wheel

• One on each rear caster swivel
Apply light machine oil to lubricate the following:

• Solution tank hinge

• Recovery tank hinge

• Brush skirt locks

• Squeegee lever pivot linkage

• Solution lever pivot points

• Brake lever pivot points

• Drive Chain

• Pivot points for the squeegee and scrub brush lift linkage

MAINTENANCE

FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD - 9

KNOW YOUR MACHINE

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

_________________________________________________________________________________________________________________

As you read this manual, you will occasionally run across a bold number in parentheses - example: (2). These numbers refer to an item on this or the following
page. Refer back to these pages whenever necessary to pinpoint the location of an item mentioned in the text.

1 Solution Lever
2 Twist Grip
3 Solution Tank Cover
4 Brake Lever
5 Power Connector
6 Circuit Breaker (80 Amp)
7 Circuit Breaker (25 Amp)
8 Circuit Breaker (25 Amp)

9 Circuit Breaker (5 Amp)
10 Squeegee Lever
11 Master Key Switch
12 Recovery Tank Drain Hose
13 Squeegee
14 Squeegee Blade Latch
15 Recovery Tank Cover
16 Skirt

10 - FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD

KNOW YOUR MACHINE

CONTROL PANEL

17 Battery Meter
18 Brush Switch
19 Solution ON Light
20 Solution Switch, ON - Momentarily ON – OFF
21 Power ON Light

18

17

21

19

20

FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD - 11

SOLUTION SYSTEM

_________________________________________________________________________________________________________________

MAINTENANCE

The solution system should be flushed every day to prevent a build-up of soap residue in the solution valve. To flush the
system...

1 Park the machine near a designated “DISPOSAL SITE” and drain the solution tank.

2 Put clean, warm water into the solution tank and let it drain through the drain hose.

3 When the tank is empty, re-cap the drain hose and put about 2 inches (5 cm) of clean, warm water in the tank.

4 Put the machine controls in the following positions:

• Key Switch (11) - ON

• Solution Switch (20) - ON

• Brush Drive (18) - Lowered

• Twist Grips (2) - Forward slightly

• Solution Flow Control Lever (1) - Pulled Back

5 Let all of the clean water flow from the tank. This will flush dirt and soap residue from the electric solenoid valve and

the flow control valve.

______________________________________________________________________________________________

FLOW CONTROL VALVE REPLACEMENT - BA 700 / 28LX / 280HD

1 Drain the solution tank at a designated

“DISPOSAL SITE”.

2 See Figure 1. Remove the (A), (B), and (C)

Hoses from the solution valve fittings and
mark them to ensure proper reassembly.

3 Remove Ball Joint (D) from the valve arm.

Be careful not to lose the bushings.

4 Remove the valve mounting bolts and re-

move the valve from the machine.

5 Remove the fittings from the old valve and

remove the valve from the mount, (note the
positioning of the fittings for reassembly).

6 Install the new valve on the mount and

install the fittings.

FIGURE 1

12 - FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD

SOLUTION SYSTEM

FIGURE 2

7 Follow steps 1 - 5 in reverse order to reassemble. Make sure that the valve mount is in the forward two holes as shown.

8 Check for leaks and proper operation.

______________________________________________________________________________________________

FLOW CONTROL VALVE REPLACEMENT - BA 800, 1000 / 32, 38LX / 320, 380HD

1 Drain the solution tank at a designated “DISPOSAL SITE”.

2 Remove the left splash guard.

3 See Figure 2. Remove the (E), (F), and (G) Hoses from the solution valve fittings and mark them to ensure proper

reassembly.

4 Remove Ball Joint (H) from the valve

arm. Be careful not to lose the
bushings.

5 Remove the valve mounting bolts

and remove the valve from the ma­chine.

6 Remove the fittings from the old

valve and remove the valve from
the mount, (note the positioning of
the fittings for reassembly).

7 Install the new valve on the mount

and install the fittings.

8 Follow steps 1 - 5 in reverse order to

reassemble.

9 Check for leaks and proper opera-

tion.

_____________________________________________________________________________________________________________________________

FLOW CONTROL VALVE REPLACEMENT - BA 700 / 28LX / 280HD (continued)

FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD - 13

SOLUTION SYSTEM

K

J

FIGURE 3

______________________________________________________________________________________________

SOLUTION CABLE REPLACEMENT - BA 700 / 28LX / 280HD

1 Drain the solution tank at a designated

“DISPOSAL SITE”.

2 See Figure 3. Disconnect Ball Joint (I)

from the valve arm. Be careful not to
lose the bushings.

3 Remove Ball Joint (I) from the cable,

then remove the cable from the chassis
cable mount, (note the cable position in
the mount).

4 See Figure 4. Remove Panel (J).

5 Disconnect Ball Joint (K) from the lever,

and then remove the balljoint from the
cable.

6 Remove the cable from the control

handle cable mount, (note the cable
position in the mount).

7 Before removing the cable, take note of

the cable routing. Pull the cable up and
out through the control handle.

8 Follow steps 1-8 in reverse order to

reassemble. Test the new cable for
proper operation before reinstalling the
panels.

FIGURE 4

14 - FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD

SOLUTION SYSTEM

______________________________________________________________________________________________

SOLUTION CABLE REPLACEMENT - BA 800, 1000 / 32, 38LX / 320, 380HD

1 Drain the solution tank at a designated “DISPOSAL SITE”.

2 Remove the left splash guard.

3 See Figure 5. Disconnect Ball Joint (L) from the valve arm. Be careful not to lose the bushings.

4 Remove the cable from the chassis cable mount (note the cable position in the mount), then remove Ball Joint (L)

from the cable.

5 See Figure 4. Remove Panel (J).

6 Disconnect Ball Joint (K) from the lever, and then remove the balljoint from the cable.

7 Remove the cable from the control handle cable mount, (note the cable position in the mount).

8 Before removing the cable, take note of the cable routing. Pull the cable down and out through the bottom of the

control handle, and then pull it out through the rear of the chassis.

9 Follow steps 1-8 in reverse order to reassemble. Test the new cable for proper operation before reinstalling the handle

panel and splash guard.

FIGURE 5

FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD - 15

SOLUTION SYSTEM

N

M

O

FRONT

W

T

X

U

V

R

Q

S

P

______________________________________________________________________________________________

SOLUTION SOLENOID VALVE REMOVAL - BA 700 / 28LX / 280HD

1 Drain the solution and recovery

tanks at a designated “DISPOSAL
SITE” and disconnect one of the
battery cables.

2 Tip the solution tank over to the

side of the machine.

3 See Figure 6. Remove the (4) (M)

Screws and remove Cover (N) from
the machine.

4 See Figure 7. Disconnect Hoses

(O), (P), (Q) and then disconnect

the solenoid valve wiring connec­tor.

FIGURE 6

FIGURE 7

5 Remove the (2) (R) Screws, remove the Solenoid Valve (S) and Bracket (T) from the machine.

6 Remove the fittings from the solenoid valve only if you are replacing the solenoid valve (remove Fittings (U), (V), (W),

and (X) as a one piece unit to avoid snapping them off inside the Tee Fitting (X).

7 Reassemble in reverse order and test for leaks and proper operation.

16 - FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD

SOLUTION SYSTEM

Z

Y

AA

FRONT

EE

HH

GG

BB

JJ

FF

IICC

DD

______________________________________________________________________________________________

SOLUTION SOLENOID VALVE REMOVAL - BA 800, 1000 / 32, 38LX / 320, 380HD

1 Drain the solution and recovery

tanks at a designated “DISPOSAL
SITE” and disconnect one of the
battery cables.

2 Tip the solution tank over to the

side of the machine.

3 See Figure 8. Remove the (4) (Y)

Screws and remove Cover (Z) from
the machine.

4 See Figure 9. Disconnect Hoses

(AA), (BB), (CC) and then discon-

nect the solenoid valve wiring con­nector.

5 Remove the (2) (DD) Screws, remove the Solenoid Valve (EE) and Bracket (FF) from the machine.

6 Remove the fittings from the solenoid valve only if you are replacing the solenoid valve (remove Fittings (GG), (HH),

(II), and (JJ) as a one piece unit to avoid snapping them off inside the Tee Fitting (JJ).

7 Reassemble in reverse order and test for leaks and proper operation.

FIGURE 8

FIGURE 9

FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD - 17

SOLUTION SYSTEM

MM

LL

KK

KK

______________________________________________________________________________________________

SOLUTION SOLENOID VALVE DISASSEMBLY AND CLEANING

1 Remove the solenoid valve (do not remove the fittings from the solenoid valve unless you are replacing the valve!).

Refer to the Solution Solenoid Valve Removal sections of this chapter.

2 See Figure 10. Remove the (2) (KK) Screws and Nuts and disassemble the valve (be careful not to lose any internal

parts).

FIGURE 10

3 Thoroughly wash any dirt from Block (LL) and Diaphragm (MM).

4 Reassemble in reverse order and test for leaks and proper operation.

18 - FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD

SOLUTION SYSTEM

______________________________________________________________________________________________

TROUBLESHOOTING

______________________________________________________________________________________________

PROBLEM: NO SOLUTION FLOW

Possible Cause & Remedy:

1 Machine controls not positioned properly - in order for solution to flow, the controls must be positioned as follows:

• Key Switch - ON

• Solution Switch - ON

• Brush Switch - ON

• Twist Grips - Forward

• Flow Control Lever - Pulled Back

2 Clogged solution filter - drain solution tank, using the clear plastic drain hose at the back of the machine. This

automatically flushes loose dirt from the solution filter. If solution still does not flow, remove and disassemble the tee­fitting (attached to the solenoid valve) and remove and clean the filter thoroughly.

3 Clogged solenoid valve - remove, disassemble and clean the solenoid valve. See the Solenoid Valve Disassembly

and Cleaning section for instructions.

4 Defective speed control - replace the speed control.

______________________________________________________________________________________________

PROBLEM: SOLUTION LEAKS IN THE “OFF” POSITION

Possible Cause & Remedy:

1 Dirt in solenoid valve - remove, disassemble and clean the solenoid valve. See the Solenoid Valve Disassembly and

Cleaning section for instructions

2 Defective solenoid valve - replace the solenoid valve. See the Solution Solenoid Valve Removal sections for

instructions.

FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD - 19

BRUSH DRIVE SYSTEM

_____________________________________________________________________________

MAINTENANCE

Every 3 years...
1 Check the carbon brushes in the brush motor. Replace the brushes if they are worn to a length of 3/8 inch (10 mm)

or less.

2 Remove the fill plug from the top of the gear box and check the oil level. The oil should be 1-1/2 inches (3.8 cm) from

the top of the gear box. Use 140W gear lube only.

3 Check the belt tension. There should be about 3/32 inch (2 mm) of belt deflection when 3-1/4 pounds of pressure

is applied between the pulleys.

_____________________________________________________________________________

BELT TENSION ADJUSTMENT - BA 700 / 28LX / 280HD

1 Remove the actuator from the machine (see the Brush Lift Actuator Replacement section).

2 Remove the access panel from the right side of the machine.

3 See Figure 1. Loosen the (4) screws in the (A) Belt Guards.

FIGURE 1

20 - FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD

BRUSH DRIVE SYSTEM

F

FRONT

E

E

E

FRONT

F

E

4 Loosen the (B) Bolts and Nuts.

5 Loosen the (C) Lock Nuts and turn the (D) Bolts to adjust the belt tension. There should be about 3/32 inch (2 mm)

of belt deflection when 3-1/4 pounds of pressure is applied between the pulleys.

6 Follow steps 1-5 in reverse order to reassemble.

7 After the adjustment is complete, test to make sure the belt does not slip.

_____________________________________________________________________________

BELT TENSION ADJUSTMENT - BA 800, 1000 / 32, 38LX / 320, 380HD

1 Drain and tip the solution tank to the side of the machine.

2 See Figure 2. Loosen the (E) Bolts and Nuts.

3 Loosen the lock nuts and turn the (F) Bolts to adjust the belt tension. There should be about 3/32 inch (2 mm) of belt

deflection when 3-1/4 pounds of pressure is applied between the pulleys.

4 After the adjustment is complete, test to make sure the belt does not slip.

_____________________________________________________________________________________________________________________________

BELT TENSION ADJUSTMENT - BA 700 / 28LX / 280HD (continued)

FIGURE 2

BA 800 / 32LX / 320HD BA 1000 / 38LX / 380HD

FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD - 21

BRUSH DRIVE SYSTEM

_____________________________________________________________________________

BRUSH LIFT ACTUATOR LIMIT SWITCHES

_____________________________________________________________________________

LIMIT SWITCH ADJUSTMENT

1 Remove the brushes, lower the brush drive and jack up the front of the machine about 2 inches. Put wood blocks

under the brush holders and lower the jack enough to take the weight of the brush drive assembly off the actuator.

2 Drain and tip the solution tank to the side of the machine.

3 See Figure 3. Loosen the (2) (G) Bolts and Nuts until the plastic nut on the actuator slips out of the brackets.

4 Remove Ring (H) and Pin (I), lift the actuator up, but leave it plugged in.

FIGURE 3

G

FRONT

G

H

I

BA 700 / 28LX / 280HD

G

FRONT

G

I

H

BA 800, 1000 / 32, 38LX / 320, 380HD

22 - FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD

BRUSH DRIVE SYSTEM

Down

Up

Plastic Nut

Adjuster Cover

5 See Figure 4. Measure the position of the plastic nut on the actuator shaft.

6 Manually turn the plastic nut to the DOWN position given below.

_____________________________________________________________________________________________________________________________

LIMIT SWITCH ADJUSTMENT (continued)

Machine DOWN Position UP Position

BA 700 / 28LX / 280HD 5-1/2 inches 8 inches

(140 mm) (203 mm)

BA 800, 1000 / 32LX / 38LX 5-3/4 inches 10 inches

320HD / 380HD (146 mm) (254 mm)

7 Hold the plastic nut, put the brush lift switch in the UP position and wait until the actuator stops.

8 Measure the position of the plastic nut on the actuator shaft and compare your measurement with the UP position

given above.

9 Remove the adjuster cover from the top of the actuator and adjust the UP position. To increase the travel of the plastic

nut, turn the adjuster clockwise. To decrease the travel of the plastic nut, turn the adjuster counter-clockwise.

Note: Each click of the adjuster will change the nut travel 1/16 inch (1.6mm).

10 After each adjustment, hold the plastic nut, run the actuator up and down and check the UP and DOWN position of

the plastic nut again.

11 After adjustment is complete, replace the adjuster cover and follow steps 1-4 in reverse order to reassemble.

12 Test the actuator to make sure the brushes raise and lower properly.

FIGURE 4

FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD - 23

BRUSH DRIVE SYSTEM

L

N

J

K

M

_____________________________________________________________________________

LIMIT SWITCH REPLACEMENT

1 Remove the actuator from the machine (see the Brush Lift Actuator Replacement section).

2 See Figure 5. Remove the (J) Screws and Cover (K), be careful not to lose the spring and washers. Note the position

of the Adjuster (L) for reassembly.

3 Remove the (M) Diodes from the switches.

_____________________________________________________________________________________________________________________________

BRUSH LIFT LIMIT SWITCHES (continued)

4 Remove the (N) Screws, the switches and the switch shroud.

5 Follow steps 2-4 in reverse order to reassemble the actuator.

6 After reassembling the actuator and before reinstalling the actuator in the machine, adjust the UP and DOWN limits

(see the Brush Lift Limit Switch Adjustment section).

FIGURE 5

24 - FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD

BRUSH DRIVE SYSTEM

______________________________________________________________________________________________

BRUSH LIFT ACTUATOR REPLACEMENT

1 Remove the brushes, lower the brush drive and jack up the front of the machine about 2 inches. Put wood blocks

under the brush holders and lower the jack enough to take the weight of the brush drive assembly off of the actuator.

2 Drain and tip the solution tank to the side of the machine, and disconnect the batteries.

3 See Figure 6. Loosen the (2) (O) Bolts and Nuts until the plastic nut on the actuator slips out of the brackets, do not

turn this nut if you are reinstalling the same actuator.

4 Unplug the actuator cord. Remove Nut (P), and Bolt (Q). Remove the actuator from the machine.

5 Follow steps 1-4 in reverse order to reassemble. To set UP and DOWN limits (see the Brush Lift Limit Adjustment

section).

FIGURE 6

O

FRONT

O

P

Q

O

FRONT

O

Q

P

BA 700 / 28LX / 280HD BA 800, 1000 / 32, 38LX / 320, 380HD

FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD - 25

BRUSH DRIVE SYSTEM

FRONT

BA 700 Before SN 1082069
BA 800, BA 1000 Before SN 1081111

Bru sh

Solenoi d

Brush Circuit

Breaker

Speed Cont rol

Down Solenoi d

Up Solenoid

Dri ve Moto r

Solenoi d

FRONT

BA 700 After SN 1082068
BA 800, BA 1000 After SN 1081110
All 28LX / 280HD
All 32LX, 38LX / 320HD, 380HD

Brush Circuit

Breaker

Actuat or Contr ol Module

Brush Motor

Solenoi d

Speed Control

Drive Motor

Solenoi d

_____________________________________________________________________________

TROUBLESHOOTING

Before troubleshooting the brush drive circuit, check the reset button on the 80 amp brush motor circuit breaker, reset if
necessary.

____________________________________________________________________________________________________________________

Problem: Squealing noise when brushes are lowered.

Possible Cause & Remedy:

1 Loose belt - adjust belt tension.

____________________________________________________________________________________________________________________

Problem: Brush motor will not start when twist grips are turned.

Possible Cause & Remedy:

1 Tripped brush motor circuit breaker (see Figures 7A & 7B) - press the reset button, check the circuit breaker for continuity.
2 Defective brush switch (on top of control handle) - replace switch.
3 Defective brush motor solenoid (see Figures 7A & 7B) - replace solenoid.
4 Defective brush motor - remove motor, repair or replace.
5 Defective speed control (see Figures 7A & 7B) - replace speed control.

____________________________________________________________________________________________________________________

Problem: Brushes will not go up or down.

Possible Cause & Remedy:

1 Defective brush switch (on top of control handle) - replace switch.
2 Defective drive nut or actuator - replace drive nut or actuator.
3 Defective up or down solenoid (see Figure 7A) - replace solenoid(s), for machines with up and down solenoids. Defective

Actuator Control Module (see Figure 7B) – replace control module, for machines with actuator control module.

FIGURE 7A

FIGURE 7B

26 - FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD

VACUUM SYSTEM

C

E

D

A

B

______________________________________________________________________________________________

MAINTENANCE

Whenever the vacuum system does not perform properly, the entire system should be cleaned and inspected, following
the maintenance checklist below.

1 Remove the squeegee from the machine and clean it thoroughly.
2 Inspect the squeegee blades. If the wiping edge of the rear blade is damaged or worn to a radius, turn it around or over so a

new edge with a sharp corner faces toward the front of the machine.

3 See Figure 1. Disconnect Squeegee Hose (A) from the recovery tank cover. Park the machine near a designated disposal

site and use a garden hose to “back flush” dirt down and out of Squeegee Hose (A).

FIGURE 1

FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD - 27

VACUUM SYSTEM

G

F

CAUTION!

Do not flush hose (C) unless it is disconnected from the vacuum motor.

4 Remove Cover (B) from the recovery tank (see Figure 1). Rinse all dirt from Cage (E) and the ball float inside.

5 Check the gasket on recovery tank Cover (B). It must seal air-tight against the top of the tank.

6 Check drain hose Plug (D). Replace the plug if it does not seal air-tight.

If the machine still does not pick up after completing this checklist, see the Troubleshooting section of this chapter for
additional information.

______________________________________________________________________________________________

VACUUM MOTOR REMOVAL - BA 700 / 28LX / 280HD

_____________________________________________________________________________________________________________________________

MAINTENANCE (continued)

1 Disconnect one of the battery cables.

2 Drain the solution tank and tip it to the side of

the machine.

3 See Figure 2. Remove the (4) (F) Screws and

remove Cover (G) from the machine.

4 See Figure 3. Remove the (3) (H) Screws and

disconnect the vacuum motor wiring connec­tor.

4 Remove the vacuum motor from the machine.

FIGURE 2

FIGURE 3

H

FRONT

28 - FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD

VACUUM SYSTEM

K

FRONT

______________________________________________________________________________________________

VACUUM MOTOR REMOVAL - BA 800, 1000 / 32, 38LX / 320, 380HD

1 Disconnect one of the battery cables.

2 Drain the solution tank and tip it to the side of the

machine.

3 See Figure 4. Remove the (4) (I) Screws and

remove Cover (J) from the machine.

4 See Figure 5. Remove the (3) (K) Screws and

disconnect the vacuum motor wiring connector.

4 Remove the vacuum motor from the machine.

FIGURE 5

I

FRONT

J

FIGURE 4

FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD - 29

VACUUM SYSTEM

Rear Squeegee Blade

Wing Nut

Alignment Pin

Retaining Strap

Latch

Vacuum Hose

Connection

Adjustment Knob

Thumb Nut

Squeegee Mount

______________________________________________________________________________________________

SQUEEGEE MAINTENANCE

If the squeegee leaves narrow streaks of water, the blades may be dirty or damaged. Remove the squeegee, rinse it under warm
water and inspect the squeegee blades. Reverse or replace the blades if they are cut, torn, wavy or worn.

To Reverse or Replace the Rear Squeegee Wiping Blade...
1 Unsnap the center Latch on the squeegee tool.
2 Remove the Wing Nut from each end of the squeegee, then remove the Tension Straps.
3 Slip the rear blade off the Alignment Pins.
4 The rear squeegee blade has 4 working edges. Turn the blade so a clean, undamaged edge points toward the front of the

machine and against the floor. Replace the blade if all 4 edges are nicked, torn or worn.

5 Install the blade, following steps 1-3 in reverse order.

FIGURE 6

To Reverse or Replace the Front Squeegee Blade...
1 Put the Squeegee Lever in the UP position and remove the vacuum hose from the squeegee tool.
2 Loosen the two thumb screw on top of the squeegee, and slide the squeegee tool off of the squeegee mount.
3 Remove the nuts that hold the front blade in place, then remove the blade.
4 The front squeegee blade has 4 working edges. Turn the blade so a sharp 90° edge points toward the front of the machine

and against the floor. Replace the blade if all 4 edges are nicked, torn or worn.

5 Install the blade, following steps 1-3 in reverse order.
6 Put the squeegee tool back on the machine, connect the vacuum hose, and adjust the squeegee.

______________________________________________________________________________________________

SQUEEGEE ADJUSTMENT (BA 700 BEFORE SN 1082069 & BA 800/1000 BEFORE SN 1081111)

The squeegee should be adjusted whenever the squeegee is not wiping the floor dry.

To Adjust the Squeegee Tool...
1 Park the machine on a flat, even surface.
2 Turn the Master Switch (11) OFF and lower the Squeegee Lever (10).
3 Turn the Adjustment Knob until the rear squeegee blade touches the floor across its entire width.

30 - FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD

VACUUM SYSTEM

FIGURE 7

______________________________________________________________________________________________

SQUEEGEE ADJUSTMENT (BA 700 AFTER SN 1082068 & BA 800/1000 AFTER SN 1081110) ALL 28, 32, 38LX

/ 280, 320, 380HD

1 Park the machine on a flat, even surface.
2 Lower the squeegee.
3 Loosen the (horizontal) squeegee-mount lock bolt (found on right side next to the recovery hose tube).
4 Loosen the locking nut on the (vertical) tilt adjustment bolt on the squeegee tongue.
5 Turn the adjustment bolt with a wrench to tilt the tool forward or backwards, until the rear squeegee wiping blade touches the

floor across its entire width.

6 Re-tighten both the adjustment nut and mount lock bolt.

Tilt Adjustment Bolt

Locking Nut

Squeegee Mount
Lock Bolt

Rear Squeegee

Wiping Blade

FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD - 31

VACUUM SYSTEM

______________________________________________________________________________________________

TROUBLESHOOTING

______________________________________________________________________________________________

Problem: Machine will not pick up water, water flows around ends of squeegee

Possible Cause & Remedy:
1 Plug for recovery tank drain hose not sealing air-tight — install plug properly or replace if damaged.

2 Recovery tank cover not installed properly — push cover down all the way, so it seals air-tight against the top of the

tank.

3 Damaged gasket on recovery tank cover — replace gasket.

4 Low battery voltage — charge or replace batteries.

5 Vacuum motor defective — repair or replace vacuum motor.

______________________________________________________________________________________________

Problem: Water in vacuum motor

Possible Cause & Remedy:
1 Operator using high-sudsing detergent — use low-sudsing detergent or add a defoaming chemical to the recovery

tank.

2 Vacuum leak in recovery tank drain hose or plug — replace hose or plug.

3 Vacuum shut-off float ball not closing — clean or replace float ball and cage (mounted on recovery tank cover).

______________________________________________________________________________________________

Problem: Float closes before tank is full

Possible Cause & Remedy:
1 Foam in recovery tank — use low-sudsing detergent or add a defoaming chemical to the recovery tank.

2 Cage around vacuum shut-off float clogged — disconnect hoses from recovery tank cover, remove the cover and

clean or replace the float cage.

32 - FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD

VACUUM SYSTEM

FRONT

BA 700 After SN 1082068
BA 800, BA 1000 After SN 1081110
All 28LX / 280HD
All 32LX, 38LX / 320HD, 380HD

Vac Motor

Circuit Breaker

Vac Motor

Solenoi d

FRONT

BA 700 Before SN 1082069
BA 800, BA 1000 Before SN 1081111

Vac Motor

Circuit Breaker

Vac Motor Soleno id

______________________________________________________________________________________________

Problem: Vacuum motor will not run when squeegee is lowered

Possible Cause & Remedy:
1 Tripped vacuum motor circuit breaker (see Figures 8A and 8B) — press reset button, check circuit breaker for

continuity.

2 Defective vacuum switch (see Figure 9) — remove cover panel from back of control handle, adjust or replace switch.
3 Defective vacuum motor — remove motor, repair or replace.
4 Defective vacuum motor solenoid (see Figures 8A and 8B)— replace solenoid.

_____________________________________________________________________________________________________________________________

TROUBLESHOOTING (continued)

FIGURE 8A

FIGURE 8B

FIGURE 9

Vacuum

Swit ch

FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD - 33

WHEEL DRIVE SYSTEM

C

FRONT

G

D

E

F

A

B

______________________________________________________________________________________________

MAINTENANCE

Lubricate the drive wheel bearings once per month. For access to the grease fitting, open the left splash guard, raise
the brushes and remove the left scrub brush from the machine.

______________________________________________________________________________________________

CHAIN REMOVAL OR ADJUSTMENT

______________________________________________________________________________________________

CHAIN REMOVAL:

1 Drain and remove the solution and recovery tanks, disconnect and remove the batteries and squeegee.

2 Remove the left splash guard and scrub brush. Then tip the machine over on its left side.

3 See Figure 1. Loosen Lock Nut (A) and back out Bolt (B) several turns to loosen tension on the drive chain, then

remove the chain from the motor sprocket.

4 Disconnect the master link in the drive chain and remove the chain from the machine.

5 Follow steps 1-4 in reverse order to reassemble. Adjust the chain tension. See the “Chain Adjustment” instructions

follow step 2.

6 Test the drive system for proper operation.

FIGURE 1

34 - FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD

WHEEL DRIVE SYSTEM

______________________________________________________________________________________________

CHAIN ADJUSTMENT:

1 Follow steps 1 & 2 from the Chain Removal section above.

2 See Figure 1. Loosen Lock Nut (A), turn Bolt (B) to adjust chain tension. There should be about 1/2 inch (12 mm)

of deflection between the sprockets when moderate pressure is applied to the chain.

3 Follow steps 1 & 2 in reverse order to reassemble.

4 Test the drive system for proper operation.

______________________________________________________________________________________________

DRIVE MOTOR REPLACEMENT

1 Drain and remove the solution and recovery tank, disconnect and remove the batteries and squeegee.

2 Remove the left splash guard and scrub brush. Then tip the machine over on its left side.

3 See Figure 1. Cut the plastic tie strap holding the vac hose and wiring onto motor mount Bracket (C). Then disconnect

the (2) motor wires from the red terminals. Note that the positive motor wire and the blue wire from the machine wiring
harness are connected to the same terminal.

4 Remove the Bolt (D) and Washer (E) from the end of the motor shaft.

5 Loosen Lock Nut (A) and back out Bolt (B) several turns to loosen the tension on the drive chain, then remove the

chain from the motor sprocket.

6 Loosen the (2) set screws in Motor Sprocket (F) and pull the sprocket off the motor shaft.

7 Put a wood block under the motor so that it will not fall. Then remove the (4) Bolts (G) and separate the motor from

Bracket (C).

8 Follow steps 1 - 7 in reverse order to re-assemble.

Note: Install a new plastic tie strap to hold the wiring and vac hose away from any moving parts.

_____________________________________________________________________________________________________________________________

CHAIN REMOVAL OR ADJUSTMENT (continued)

FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD - 35

WHEEL DRIVE SYSTEM

FRONT

J

H

I

______________________________________________________________________________________________

DRIVE WHEEL REPLACEMENT

1 Drain and remove the solution and recovery tank, disconnect and remove the batteries and squeegee.

2 Remove the left splash guard and scrub brush. Then tip the machine over on its left side.

3 See Figure 2. Loosen Lock Nut (H) and back out Bolt (I) several turns to loosen the tension on the drive chain, then

remove the chain from the motor sprocket.

4 Remove the (4) (J) Bolts (2 at each end of the axle) and pull the wheel assembly away from the machine frame.

5 Remove the (6) bolts that hold the brake disc and sprocket on the wheel.

6 Using a rubber mallet or brass drift, drive the axle and one of the bearings out of the wheel. Then drive the other

bearing out of the wheel.

7 Follow steps 1-6 in reverse order to reassemble.

8 Refer to the Chain Adjustment section for proper chain tension.

9 Test the drive system for proper operation.

FIGURE 2

36 - FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD

WHEEL DRIVE SYSTEM

______________________________________________________________________________________________

TROUBLESHOOTING

______________________________________________________________________________________________

Problem: No wheel drive - forward or reverse

Possible Cause & Remedy:

1 Tripped wheel drive circuit breaker - press reset button and check circuit breaker for continuity.

2 Defective wheel drive motor - follow instructions below to test.

• Jack up the front of the machine to lift the drive wheel off the floor.

• Turn Key Switch (11) OFF.

• Disconnect one of the battery cables.

• Remove the back panel from control handle.

• Disconnect the white/green wire from the M2 terminal on the speed control. Connect this wire to one of the B+
terminals (also on the speed control).

• Disconnect the blue wire from the M1 terminal on the speed control. Connect this wire to one of the B- terminals
(also on the speed control).

• Reconnect the battery cable and then turn key ON. If the wheel motor turns, go to steps 3. If the wheel motor does
not turn, remove the tanks and batteries, tip the machine on its side and repair or replace the wheel drive motor.

3 Defect in potentiometer mechanism - follow instructions below to test.

• Make sure that the white, green and black wires are firmly connected to the potentiometer. The white wire should
be on the potentiometer terminal closest to the front of the machine, the green wire on the center terminal and the
black wire on the terminal closest to the back of the machine.

• Disconnect the potentiometer plug (the one with the green, black and white wires) from the speed control.

• Connect an ohmmeter to the green and white wires. NOTE: Inserting a paper clip into the plug end will help in the
attachment of the test leads. Meter should read 2400 - 2600 ohms in neutral and increase to 5000 ohms when the
twist grips are turned to the full-forward position. If you do not get these readings, follow potentiometer adjustment
instructions. If you do get these readings, go to the next test.

• Connect an ohmmeter to the green and black wires. Meter should read 2400 - 2600 ohms in neutral and decrease
to 100 - 300 ohms when the twist grips are turned to the full-forward position. If you do not get these readings, follow
potentiometer adjustment instructions. If you do get these readings, the potentiometer is OK — replace the speed
control.

FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD - 37

WHEEL DRIVE SYSTEM

______________________________________________________________________________________________

POTENTIOMETER ADJUSTMENT

Adjust the potentiometer if the machine has no drive, or if it moves with the twist grips in neutral. To adjust the
potentiometer...

1 Remove the back panel from the control handle.

2 Carefully inspect the potentiometer belt and pulley mechanism for a mechanical defect, correct defects before

proceeding.

3 Carefully pull the potentiometer connector (the one with the green, black and white wires) off of the speed control.

4 Connect an ohmmeter (on 0 x 100 scale) to the green and white wires on the connector. The meter should read

between 2400 and 2600 ohms. If it does not, go to the next step.

5 Loosen the (2) set screws (using a 5/64 Allen wrench) in the potentiometer pulley and slide it off of the potentiometer

shaft (if the potentiometer shaft does not have a slot in the end of it) (if it does, use a screw driver to adjust the
potentiometer after loosening the pulley set screws).

6 Turn the potentiometer shaft until the ohmmeter reads between 2400 and 2600 ohms.

7 Slide the pulley back onto the potentiometer shaft, being careful not to turn the shaft.

8 Test the drive system for proper operation before reinstalling the back panel.

38 - FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD

BATTERY SYSTEM

______________________________________________________________________________________________

WARNING!

Use extreme caution when working with batteries. Sulfuric acid in batteries can cause severe injury if allowed to contact
skin or eyes. Explosive hydrogen gas is vented from inside the batteries through openings in the battery caps. This gas
can be ignited by any electrical arc, spark or flame.

When working with batteries:

• Remove all jewelry.

• Wear chemical goggles, rubber gloves and a protective apron.

• Do not smoke.

• Do not allow tools to touch more than one battery terminal at a time.

• Work in a well-ventilated area.

• Do not fill the batteries before charging.

______________________________________________________________________________________________

BATTERY MAINTENANCE

Proper maintenance of electric vehicle batteries can greatly extend their life. Well-maintained batteries may last up to 3
years, but failure after 1 year is common if maintenance has been poor.

There are 3 simple rules for good battery maintenance:

• Maintain Proper Electrolyte Level – Check the electrolyte level of the batteries at least once a week. Use distilled

water in batteries whenever possible. If batteries are discharged, add just enough water to cover the plates in each
cell. After batteries are fully charged, fill each cell to the bottom of the filler tube. Do not over-fill the batteries! Do

not add acid to batteries!

• Keep the Batteries Charged - Batteries should be charged each time that a machine is used for more than 1 hour
or when the Battery Meter (17) indicates batteries are empty. Machine operators should tip the solution and recovery
tank to the side of the machine for charging, to avoid a concentrated build-up of hydrogen gas. Push the connector
from the charger into the Power Connector (5). Operators should follow the instructions provided with their specific
battery charger, to determine how long the batteries should be charged. Even when a machine is stored, the batteries
should be charged once a month to prevent the batteries from “sulfating”. Almost all battery caps are vented, so
there’s no need to loosen or remove them for charging.

• Keep the Batteries Clean - Use a damp cloth to wipe dirt and liquid from the top of the batteries. Battery terminals
must be clean and tight. If the top of the batteries are wet after charging, the batteries have probably been over-filled.
Always wipe water and acid from the top of the batteries after charging. If there is acid on the batteries, wash the
tops of them with a solution of baking soda and water (2 tablespoons of baking soda to 1 liter of water).

FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD - 39

BATTERY SYSTEM

______________________________________________________________________________________________

BATTERY TESTING

A battery problem is usually recognized by the machine operator, as a decrease in the machine’s running time. This
condition is usually caused by one (or more) “dead cell” in the battery system- that is, one (or more) cell that is putting out
less voltage than the other cells.

Note: Always charge batteries before testing.

There are 2 ways to find a dead cell:

• Use a hydrometer to check the specific gravity (or “state of charge”) of the fluid in each cell. A dead cell is one that
reads 50 points (or more) lower than the other cells.

• Use a volt meter to check the voltage of each battery with the brush and vac motors running. The battery with the
dead cell will read 1 or 2 volts lower than the other batteries in the system.

If the batteries in the machine are more than 1 year old, it’s usually best to replace the whole set, rather than replacing
just one battery.

Proper installation and cable
routing of (6) 6 Volt batteries

BLACK

RED

36V

395 AH USA / ESPANOL / NIPPON
305 AH I TALIANO / FRANCAIS /
238 AH DEUTSCH

@20HR

FIGURE 1

40 - FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD

NOTES

FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD - 41

ELECTRICAL SYSTEM

14

10

11

12

16

1

2

6

5

3

4

13

9

15

8

7

17

1

5

3

4

7

9

20

21

18

19

22

*Electrical Panel used only on
BA 700‘s before SN 1082069 &

BA 800/1000’s before SN 1081111

COMPONENT LOCATION

Item Description

1 Speed Controller
2 Actuator Control Module
3 Circuit Breaker 5 Amp (Control Circuit)
4 Circuit Breaker 25 Amp (Wheel Drive)
5 Circuit Breaker 25 Amp (Vacuum Motor)
6 Circuit Breaker 80 Amp (Brush Motor)
7 Solenoid (Vac Motor)
8 Solenoid (Brush Motor)
9 Solenoid (Wheel Drive Motor)
10 Solution Solenoid Valve
11 Vacuum Motor
12 Actuator Motor (Brush Lift)
13 Wheel Drive Motor
14 Brush Motor
15 Potentiometer 5K Ohm
16 Charger Interlock Switch
17 Main Key Switch

18 *Solenoid (Brush Down)
19 *Solenoid (Brush Up)
20 *Solenoid (Brush Motor)
21 *Time Delay, 1.5 sec.
22 *Circuit Breaker, 70 Amp (Brush Motor)

ELECTRICAL SYSTEM

42 - FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD

X9

VIO

+-

1

BLK

BT

36 Vdc

X1

R1

H1

P1

VIO/BRN

RED

BLU/WHT

X8

F1

S4

S1

UP

DOWN

BRN/RED

S3

K4

K5

D4

B­B+
M1
M2

P2

P1

1

1

+

-

A

BLK

RED/GRN

VIO

BLK

GRN
WHT

FWD. OFF

REV.

BRN

WHT/ORN

WHT/GRN

BLU

+

-

R3

H2

K5

X7

M3

X6

R2

S5

YEL/WHT

L

RED

F2

D5

F5

BRN

YEL/BRNRED

27

F3

F4

2

YEL/BLK

3

RED

K1

X2

K4

BLK

4

+-

X5

X5

X3

M4

M1

RED

RED

BLK

BLK

VIO/BRN

VIO

VIO

2

3

4

P2

BLK

BLK

BLK

BLK

K1

D1

VIO

VIO

GRN/BLU

VIO

S2

1

2

3

4

5

6

1

2

3

4

5

6

BRN/WHT

BA 700 Before SN 1082069

BA 800, BA 1000 Before SN 1081111

BRN/WHT

BLK

K2

D2

BLK

K3

D3

M2

K2

16253

4

E

YEL/VIO

YEL

BLK

BLK

K3

VIO

VIO

ORN/BLK

RED/BLK

WHT

BLK

X4

WHT/RED

YEL

WHT/BLK

FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD - 43

ELECTRICAL SYSTEM

S1

M2

M

R2

P2

h

P1

V

X3

M1

X2

F2

X5

S5

F1

D1

M3

M

K3

K5

S4

X6

BT

36 Vdc

X7

L

M4

M

F5

D4

F4

S2

K1

F3

K4

S3

H2

H1

X4

X1

BLK 0J-B

BLK 0L-B

BRN 1A-A

VIO 7D-B

RED 2D-B

BLU 6A-A

WHT/GRN 95A-B

RED/GRN 25A-B
VIO 7H-A

BLK
GRN
WHT

WHT/RED 92A-B

27

ORN/BLK 30A-A

BLK 0F-A

BRN/RED 12A-B
YEL/BRN 41A-B
YEL/BLK 40A-A

BLK 0B-B

BLK 0J-A
BLK 0B-A
BLK 0A-A
BLK 0K-A

BLU/WHT 69A-A
VIO/BRN 71A-B

RED 2D-A
RED 2C-A
RED 2B-A
RED 2A-A

2

227

BLK

RED

-

BLK

+

RED

WHT/ORN 93A-B

RED/GRN 25B-B

BLU 6A-B

+

4

WHT/BLK 90A-A

BLK 0K-B

WHT RED/BLK 20B-A

BLK ORN/BLK 30B-A

VIO 7F-B

VIO 7E-B

VIO 7A-A

VIO 7D-A

RED/BRN 12A-A

VIO 7A-B

VIO 7B-B

BLU/WHT 69A-B

BLK 0N-B

VIO 7E-A

VIO 7C-B

BRN/WHT 19C-A

YEL 4A-A

WHT/GRN 95A-A

WHT/RED 92A-A

VIO 7C-B

VIO 7J-A

WHT/ORN 93A-A

BLK 0G-B

BLK 0M-B

VIO/BRN 71B-B

RED 2A-B

VIO 7J-B

VIO/BRN 71B-A

VIO/BRN 71A-A

RED 2B-B

BLK 0M-B

BLK 0H-B

BRN 1A-A

YEL/WHT 49A-B

RED 2C-B

BLK 0H-B

YEL/BRN 41A-A

BLK 0N-B

BRN/WHT 19C-B

WHT/BLK 90A-B

YEL/WHT 49B-B

YEL/WHT 49B-A

YEL/WHT 49A-A

VIO 7B-A

YEL/BLK 40A-B

3

3

-

YEL/VIO 47A-A

B-

B+

M1

M2

P2

P3

1

1

REV.

OFF

FWD.

+

2

5

4
6

1
3

2

5

4

6

3

1

-

WHT

GRN

BLK

+

1

2
3

4

1

2

3

A

RED

RED

RED

4

4

X8

X9

M

R1

BRN/WHT 19A-A

GRN/BLU 56A-A

R3

BRN/WHT 19D-A

BRN/WHT 19D-B

WHT/BLK 90B-B

WHT/BLK 90B-A

BLK 0A-B

D5

YEL 4A-B

BLK OC-B

BRN/WHT 19B-B

BRN/WHT 19A-B

BRN/WHT 19B-B

321

654

YEL/VIO 47A-B

E

RED/GRN 25B-A

RED/GRN 25A-A

BLK 0L-A

K2

D3

D2

BLK 0G-B
BLK 0F-B

ORN/BLK 30B-B

30A-B

BLK 0E-A
VIO 7H-B
VIO 7G-B

GRN/BLU 56A-B
BLK 0E-B

BLK 0D-B
RED/BLK 20B-B

RED/BLK 20A-A

20A-B

BLK 0D-A
BLK 0C-A

VIO 7G-A

VIO 7F-A

WIRING DIAGRAM / SCHEMATIC
BA 700’s Before SN 1082069
BA 800/1000 Before SN 1081111

Item Description

A Speed Controller
BT Batteries
D1 Suppression Diode

D2 Suppression Diode
D3 Suppression Diode
D4 Suppression Diode
D5 Regenerative Feedback Diode

E Time Delay Module (on break)
F1 5 Amp Circuit Breaker

F2 25 Amp Circuit Breaker
F3 25 Amp Circuit Breaker
F4 70 Amp Circuit Breaker
F5 4 Amp Fuse

H1 Green Lamp
H2 Blue Lamp

K1 Vacuum Motor Solenoid
K2 Actuator Motor Up Solenoid
K3 Actuator Motor Down Solenoid
K4 Brush Motor Solenoid
K5 Wheel Drive Motor Solenoid

L Solenoid Valve
M1 Vacuum Motor

M2 Actuator Motor
M3 Wheel Drive Motor
M4 Brush Motor

P1 Battery Fuel Gauge
P2 Hourmeter (Optional)

R1 330 Ohm Resistor
R2 5K Ohm Potentiometer
R3 330 Ohm Resistor

S1 Main Switch
S2 Brush Switch
S3 Vacuum Motor Switch
S4 Charger Interlock Switch
S5 Solution Switch

X1 Charger Connector
X2 Brush Motor + Terminal Stud
X3 Brush Motor - Terminal Stud
X4 Actuator Motor Connector
X5 Vacuum Motor Connector
X6 Wheel Drive Motor - Terminal Stud
X7 Wheel Drive Motor + Terminal Stud
X8 + Terminal Stud
X9 - Terminal Stud

ELECTRICAL SYSTEM

44 - FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD

X9

VIO

+-

1

BLK

BT

36 Vdc

X1

R1

H1

P1

VIO/BRN

RED

BLU/WHT

X8

F1

S4

S1

UP

DOWN

WHT/RED

BRN/RED

S3

BLK

VIO

M2

X4

BLK

WHT

ORN/BLK
RED/BLK

RED/GRN

K4

BLK/YEL

BRN/WHT

K5

D4

E

X10

B­B+
M1
M2

P2

P1

1

1

+

-

A

BLK

RED/GRN

VIO

BLK
GRN

WHT

FWD. OFF

REV.

BRN

WHT/ORN

WHT/GRN

BLU

+

-

R3

H2

K5

X7

M3

X6

R2

S5

YEL/WHT

D2

L

RED

F2

D5

F5

BRN

YEL/BRNRED

27

F3

F4

2

YEL/BLK

3

RED

K1

X2

K4

BLK

4

+-

X5

X5

X3

M4

M1

IN 2
IN 1
TIMER OUT
DIR
MOTOR ­MOTOR +
B ­B +

RED

RED

BLK

BLK

VIO/BRN

VIO

VIO

2

3

4

P2

BLK

BLK

BLK

BLK

K1

D1

VIO

VIO

BLK

VIO

S2

1

2

3

4

5

6

1

2

3

4

5

6

RED/WHT

WHT/BLK

• Convertamatic 28/32/38LX Before SN 1082119

• Hydro Retriever 280/320/380HD Before SN 1082119

• BA 700 between SN 1082069 and SN 1082119

• BA 800, BA 1000 between SN 1081111 and SN 1082119

FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD - 45

ELECTRICAL SYSTEM

S1

M2

M

R2

P2

h

P1

V

X3

M1

X2

F2

X5

S5

F1

D1

M3

M

E

1

8

IN 2
IN 1
TIMER OUT
DIR
MOTOR -

MOTOR +

B ­B +

K5

S4

X6

BT

36 Vdc

X7

L

M4

M

F5

D4

F4

S2

K1

F3

K4

S3

H2

H1

X4

D2

X1

BLK 0A-B

BLK 0J-B

BRN 1A-B

VIO 7D-B

RED 2D-B
BLU 6A-A

WHT/GRN 95A-B

RED/GRN 25A-B
VIO 7F-A

BLK
GRN
WHT

BLK/WHT 19A-B

BLK/YEL 04A-A

27

RED/GRN 25B-A
BLK/YEL 04A-B
WHT/RED 92A-B
ORN/BLK 30B-B
RED/BLK 20B-B

BRN/RED 12A-B

BLK 0D-A

YEL/BRN 41A-B

VIO 7G-B
YEL/BLK 40A-A
BLK 0B-B

BLK 0J-A
BLK 0B-A
BLK 0A-A
BLK 0K-A

BLU/WHT 69A-A
VIO/BRN 71A-B

RED 2D-A
RED 2C-A
RED 2B-A
RED 2A-A

2

227

BLK

RED

-

BLK

+

RED

WHT/ORN 93A-B

RED/GRN 25B-B

BLU 6A-B

+

4

WHT/BLK 90A-A

BLK 0K-B

WHT RED/BLK 20B-A

BLK ORN/BLK 30B-A

VIO 7F-B

VIO 7E-B

VIO 7G-A

VIO 7A-A

VIO 7D-A

BRN/RED 12A-A

VIO 7A-B

VIO 7B-B

BLU/WHT 69A-B

BLK 0N-B

BLK 0D-B

BLK 0C-B

VIO 7E-A

BRN/WHT 19A-A

WHT/GRN 95A-A

WHT/RED 92A-A

VIO 7C-A

VIO 7J-A

WHT/ORN 93A-A

BLK 0GA

BLK 0M-A

VIO/BRN 71B-B

RED 2A-B

VIO 7J-B

VIO/BRN 71B-A

VIO/BRN 71A-A

RED 2B-B

BLK 0M-B

BLK 0H-B

BRN 1A-A

YEL/WHT 49A-B

RED 2C-B

BLK 0H-A

YEL/BRN 41A-A

BLK 0N-A

BRN/WHT 19D-A

BRN/WHT 19D-B

BRN/WHT 19C-F

WHT/BLK 90A-B

WHT/BLK 90B-B

WTH/BLK 90B-A

YEL/WHT 49B-B

YEL/WHT 49B-A

YEL/WHT 49A-A

VIO 7B-A

YEL/BLK 40A-B

3

3

-

BLK 0G-B

B-

B+

M1

M2

P2

P3

1

1

REV.

OFF

FWD.

+

2

5

4
6

1
3

2

5

4

6

3

1

-

On 28 IN. (700 MM) Models
Connect Cable 3 to (-).

0n 32 & 38 IN. (800 & 1000 MM)
Models Connect Cable 3 to (+).

WHT

GRN

BLK

+

1

2
3

4

1

2

3

A

RED

RED

RED

4

X10

4

X11

X8

X9

M

VIO 7C-B

BRN/WHT 19C-A

R3

D5

RED/GRN 25A-A

BLK 0C-A

R1

WIRING DIAGRAM / SCHEMATIC

•Convertamatic 28/32/38LX Before SN 1082119

•Hydro Retriever 280/320/380HD Before SN 1082119

•BA 700 between SN 1082069 and SN 1082119

•BA 800, BA 1000 between SN 1081111 and SN 1082119

Item Description

A Speed Controller
BT Batteries
D1 Suppression Diode

D2 Suppression Diode
D4 Suppression Diode
D5 Regenerative Feedback Diode

E Actuator Control Module
F1 5 Amp Circuit Breaker

F2 25 Amp Circuit Breaker
F3 25 Amp Circuit Breaker
F4 80 Amp Circuit Breaker
F5 4 Amp Fuse

H1 Green Lamp
H2 Blue Lamp

K1 Vacuum Motor Solenoid
K4 Brush Motor Solenoid
K5 Wheel Drive Motor Solenoid

L Solenoid Valve
M1 Vacuum Motor

M2 Actuator Motor
M3 Wheel Drive Motor
M4 Brush Motor

P1 Battery Fuel Gauge
P2 Hourmeter (Optional)

R1 330 Ohm Resistor
R2 5K Ohm Potentiometer
R3 330 Ohm Resistor

S1 Main Switch
S2 Brush Switch
S3 Vacuum Motor Switch
S4 Charger Interlock Switch
S5 Solution Switch

X1 Charger Connector
X2 Brush Motor + Terminal Stud
X3 Brush Motor - Terminal Stud
X4 Actuator Motor Connector
X5 Vacuum Motor Connector
X6 Wheel Drive Motor - Terminal Stud
X7 Wheel Drive Motor + Terminal Stud
X8 + Terminal Stud
X9 - Terminal Stud

X10 Actuator Control Module Connector

ELECTRICAL SYSTEM

46 - FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD

X9

VIO

+-

1

BLK

BT

36 Vdc

X1

H1

P1

VIO/BRN

RED

BLU/WHT

X8

F1

S4

S1

UP

DOWN

WHT/RED

BRN/RED

S3

BLK

VIO

M2

X4

BLK
WHT

ORN/BLK
RED/BLK

RED/GRN

K4

BLK/YEL

VIO

K5

D4

E

X10

B-

B+
M1
M2

P2

P1

1

1

+

-

A

BLK

GRN/BLU

VIO

BLK
GRN

WHT

FWD. OFF

REV.

BRN

WHT/ORN

WHT/GRN

BLU

+

-

H2

K5

X7

M3

X6

R2

S5

YEL/WHT

D2

L

RED

F2

F5

BRN

YEL/BRNRED

27

F3

F4

2

YEL/BLK

3

RED

K1

X2

K4

BLK

4

+-

X5

X5

X3

M4

M1

IN 2
IN 1
TIMER OUT
DIR
MOTOR ­MOTOR +
B ­B +

WHT/BLK

RED

RED

BLK

BLK

VIO/BRN

VIO

VIO

2
3

4

P2

BLK

BLK

BLK

BLK

K1

D1

VIO

VIO

BLK

S2

1

2

3

4

5

6

1

2

3

4

5

6

BLK

VIO

D5

RED RED/WHT

RED/WHT

VIO

X11

GRN/BLU

All Models After SN 1082118

FORM NO. 56043025 / BA 700, 800, 1000 / 28LX, 32LX, 38LX / 280HD, 320HD, 380HD - 47

ELECTRICAL SYSTEM

S1

M2

M

R2

P2

h

P1

V

X3

M1

X2

F2

X5

S5

F1

D1

M3

M

E

1

8

IN 2
IN 1
TIMER
OUT DIR
MOTOR -

MOTOR +

B ­B +

K5

S4

X6

BT

36 Vdc

X7

L

M4

M

F5

D5

D4

F4

S2

K1

F3

K4

S3

H2

H1

X4

D2

X1

BLK 0C-A

BLK 0L-B

BLK 0B-A

VIO 7J-B BRN 1A-B
VIO 7K-B

RED/WHT 29A-A
BLU 6A-A

WHT/GRN 95A-B

GRN/BLU 56A-B
VIO 7G-B

BLK
GRN
WHT

BLK/YEL 04A-A

RED/WHT 29A-B

VIO 7K-A

RED 2D-B

VIO 7L-A

27

RED/GRN 25B-B
BLK/YEL 04A-B
WHT/RED 92A-B
ORN/BLK 30B-B
RED/BLK 20B-B

BRN/RED 12A-B

BLK 0J-A

YEL/BRN 41A-B

VIO 7H-B
YEL/BLK 40A-A
BLK 0A-B

BLK 0A-A
BLK 0H-A
BLK 0K-A
BLK 0L-A

BLU/WHT 69A-A
VIO/BRN 71A-B

RED 2D-A
RED 2C-A
RED 2B-A
RED 2A-A

2

227

BLK

RED

-

BLK

+

RED

WHT/ORN 93A-B

VIO 7L-B

BLU 6A-B

+

4

WHT/BLK 90A-A

BLK 0K-B

WHT RED/BLK 20B-A

BLK ORN/BLK 30B-A

VIO 7B-A

VIO 7C-A

VIO 7A-A

VIO 7J-A

VIO 7H-A

BRN/RED 12A-A

VIO 7A-B

VIO 7B-B

BLU/WHT 69A-B

BLK 0G-B

BLK 0H-B

BLK 0J-B

GRN/BLU 56A-A

RED/GRN 25A-B

WHT/GRN 95A-A

WHT/RED 92A-A

VIO 7E-B

VIO 7F-B

WHT/ORN 93A-A

BLK 0C-B

BLK 0D-B

VIO/BRN 71B-B

RED 2A-B

VIO 7F-A

VIO/BRN 71B-A

VIO/BRN 71A-A

RED 2B-B

BLK 0D-A

BLK 0E-A

BRN 1A-A

YEL/WHT 49A-B

RED 2C-B

BLK 0E-B

YEL/BRN 41A-A

BLK 0F-B

VIO 7C-B

VIO 7E-A

WHT/BLK 90A-B

RED/GRN 25A-A

RED/GRN 25B-A

BLK 0F-A

BLK 0G-A

YEL/WHT 49B-B

YEL/WHT 49B-A

YEL/WHT 49A-A

VIO 7G-A

YEL/BLK 40A-B

3

3

-

BLK 0B-B

B-

B+

M1

M2

P2

P3

1

1

REV.

OFF

FWD.

+

2

5

4
6

1
3

2

5

4

6

3

1

-

On 28 IN. (700 MM) Models
Connect Cable 3 to (-).

0n 32 & 38 IN. (800 & 1000 MM)
Models Connect Cable 3 to (+).

WHT

GRN

BLK

+

1

2

3

4

1

2

3

A

RED

RED

RED

4

X10

4

X11

X8

X9

M

WIRING DIAGRAM / SCHEMATIC
All Models After SN 1082118

Item Description

A Speed Controller
BT Batteries
D1 Suppression Diode

D2 Suppression Diode
D4 Suppression Diode
D5 Regenerative Feedback Diode

E Actuator Control Module
F1 5 Amp Circuit Breaker

F2 25 Amp Circuit Breaker
F3 25 Amp Circuit Breaker
F4 80 Amp Circuit Breaker
F5 4 Amp Fuse

H1 Green Lamp
H2 Blue Lamp

K1 Vacuum Motor Solenoid
K4 Brush Motor Solenoid
K5 Wheel Drive Motor Solenoid

L Solenoid Valve
M1 Vacuum Motor

M2 Actuator Motor
M3 Wheel Drive Motor
M4 Brush Motor

P1 Battery Fuel Gauge
P2 Hourmeter (Optional)

R2 5K Ohm Potentiometer
S1 Main Switch

S2 Brush Switch
S3 Vacuum Motor Switch
S4 Charger Interlock Switch
S5 Solution Switch

X1 Charger Connector
X2 Brush Motor + Terminal Stud
X3 Brush Motor - Terminal Stud
X4 Actuator Motor Connector
X5 Vacuum Motor Connector
X6 Wheel Drive Motor - Terminal Stud
X7 Wheel Drive Motor + Terminal Stud
X8 + Terminal Stud
X9 - Terminal Stud

X10 Actuator Control Module Connector
X11 Speed Controller Connector

DANMARK

Nilfisk-Advance Nordic A/S
Myntevej 3, 8900 Randers
 86 42 84 33 – Fax [phone]

NORGE

Nilfisk-Advance AS
Enebakkvn, 119, 0680 Oslo, Postboks 196, Manglerud,
0612 Oslo
 22 08 63 50 – Fax [phone]
Distriktsrepresentanter over hele landet

SVERIGE

Nilfisk-Advance AB
Sjöbjörnsvägen 5, 117 67 Stockholm
 085 55 944 00 – Fax [phone]

FINLAND/ SUOMI

Oy Tecalemit AB
Hankasuontie 13, 00390 Helsinki
 (89) 547 701 – Fax [phone]

AUSTRALIA

Nilfisk-Advance Pty. Ltd.
ACN 003 762 623
Head office: 17 Leeds Street, Rhodes, N. S. W. 2138
 [phone] – Fax [phone]
Customer Responce Centre:
 1 800 011 013

BELGIQUE / BELGIË/ LUXEMBOURG

Nilfisk-Advance s.a./n.v.
Doornveld/ Sphere Business Park
Industrie Asse 3, nr 11 – bus 41
1731 Zellik-Asse
 (02) 467.60.50 Fax [phone]

CANADA

Nilfisk-Advance Ltd.
396 Watline Avenue
Mississauga, Ontario L4Z 1X
 [phone] – Fax [phone]

DEUTSCHLAND

Nilfisk-Advance AG
Siemensstraße 25-27
25462 Rellingen
 (041 01) 3990 – Fax ( 04101) 399191

Zentraler Kundenservice

 für die Industrie: 0180 535 67 97
 Institutionen und Gebäudereiniger: 0180 500 11 70

FRANCE

Nilfisk-Advance S.A.
BP 246
91944 Courtaboeuf Cedex
 (01) 69.59.87.00 Télécopie (01) 69.59.87.01

HONG KONG

Nilfisk-Advance Ltd.
2001, 20/F HK Worsted Mills
Industrial Building
31-39 Wo Tong Tsui Street
Kwai Chung, N.T.
 2427 59 51 – Fax [phone]

IRELAND

Nilfisk-Advance Ltd.
28 Sandyford Office Park
Dublin 18
 [phone] – Fax [phone]

JAPAN

Nilfisk-Advance Inc.
3-4-9 Chigasaki Minami
Tsuzuki-Ku Yokohama 224
 045-942-7741 – Fax [phone]

MALAYSIA

Nilfisk-Advance Sdn Bhd
Lot 2, 1st. Floor
Lorong 19/1A
46300 Petaling Jaya
Selangor Darul Ehsan
 03-7568188 / 03-7568189 / 03-7568388 – Fax [phone]

NEDERLAND

Nilfisk-Advance B.V.
Flevolaan 7, Postbus 341
1380 AH Weesp
 0294-462121 – Fax [phone]

NEW ZEALAND

Nilfisk-Advance Limited
477 Great South Road, Penrose
Auckland
 [phone] – Fax [phone]

SCHWEIZ / SUISSE

Nilfisk-Advance AG
Ringstrasse 19, 9533 Kirchberg/Wil
 719 23 52 83 – Fax [phone]

SINGAPORE

Nilisk-Advance Pte. Ltd.
10, Woodlands Loop
Singapore 738388
 (65) 759 9100 – Fax [phone]

TAIWAN

Nilfisk-Advance Ltd.
1 F, No.23, Lane 132, Sec. 2
Ta An Road, Taipei
 700 22 68 – Fax [phone]

UNITED KINGDOM

Nilfisk-Advance Limited
Newmarket Road
Bury St. Edmunds
Suffolk IP 33 3SR
 [phone] – Fax [phone]

USA

Nilfisk-Advance Inc.
14600 21st Avenue North
Plymouth, MN 55447-3408
 [phone] – Fax [phone]

Nilfisk-Advance of America, Inc.
300 Technology Drive
Malvern, PA 19355
 (610) 647 647-6427

ÖSTERREICH

Nilfisk-Advance GmbH
Vorarlberg Allee 46
1230 Wien
 1 616 58 30 – Fax [phone]

ESPAÑA

Nilfisk-Advance, S.A.
Torre D’Ara
Passeig del Rengle, 5 PI.9-10
E-08302 – Mataró (Barcelona)

 Tel. [phone] – Fax: [phone]

Central atención al cliente: 902 200 201

[e-mail] – www.nilfisk-advance.com

Distribuidores y Servicio Técnico en toda España y
Andorra

ITALIA

Nilfisk-Advance Italia Spa
Località Novella Terza
26862 Guardamiglio (LO)
Italy
 [phone] – Fax [phone]

www.nilfisk-advance.com

PORTUGAL

Nilfisk-Advance Lda.
Rua Cândido de Figueiredo, 91-i, 1500-133 LISBOA
 01/7784142 – Fax [phone]
Porto 02/526766 – Fax [phone]
Açores 096/628092/3 – Fax [phone]
Madeira 091/228965 – Fax [phone]

GREECE

Embiom S.A.

§ÂˆÊ. µÔ˘ÏÈ·Á̤Ó˘ 60
∞ÚÁ˘ÚÔ‡ÔÏË
164 52 ∞ı‹Ó·

☎ 9950613 - Fax [phone]

www.nilfisk-advance.com

© 2001 Printed in USA