Tennant BR2020 User manual

604742
Rev. 00 (0498)
BR2020/T
Dust Control Burnisher
Model No.:
BR2020  604778
BR2020T  604777
Operator Manual EN
EN

EN ENGLISH
2BR2020/T(04–98)
This manual is furnished with each new BR2020/T
Model. It provides necessary machine operation
and maintenance instructions.
Read this manual completely and understand
the machine before operating or servicing.
This machine will provide excellent service.
However, the best results will be obtained at
minimum costs if:
The machine is operated with reasonable care.
The machine is maintained regularly - per the
maintenance instructions provided.
The machine is maintained with manufacturer
supplied or equivalent parts.
MACHINE DATA
Pleasefill out at time of installation for future reference.
Model No.-
Install. Date -
Serial No.-
1998 Tennant Company Printed in U.S.A
TABLE OF CONTENTS
SAFETY PRECAUTIONS 3. . . . . . . . . . . . . . . .
RECOMMENDED STOCK ITEMS 3. . . . . . . . .
MACHINE COMPONENTS 4. . . . . . . . . . . . . . .
CONTROL PANEL SYMBOLS 4. . . . . . . . . . .
MACHINE INSTALLATION 5. . . . . . . . . . . . . . .
MACHINE SETUP 6. . . . . . . . . . . . . . . . . . . . . .
MACHINE OPERATION 7. . . . . . . . . . . . . . . . .
CHARGING BATTERIES 9. . . . . . . . . . . . . . . .
MAINTENANCE 10. . . . . . . . . . . . . . . . . . . . . . . .
TRANSPORTING MACHINE 11. . . . . . . . . . . . .
STORING MACHINE 11. . . . . . . . . . . . . . . . . . . .
SPECIFICATIONS 11. . . . . . . . . . . . . . . . . . . . . .
TROUBLE SHOOTING 12. . . . . . . . . . . . . . . . . .
EC DECLARATION OF CONFORMITY FOR MACHINERY (Directive 89//392/EEC,Annex II, sub A)
TENNANT N.V.
Address: Industrielaan 6 5405 AB
P.O. Box 6 5400 AA Uden–The Netherlands
Model: BR2020, BR2020T nr.: 604778, 604777
– is in conformity with the provisions of the Machinery Directive ( Directive 89/392/EEC),
as amended, and with national implementing legislation;
– is in conformity with the provisions of the following other EEC directives:
– the following ( parts/clauses of) harmonized standards have been applied:
EN 292–1, EN 292–2, EN 294, EN 349, EN 563, EN 60204–1, EN 60335–1 ...
– the following (parts/clauses of) national technical standards and specifications have been used: NA
EN
Uden/Netherlands, 03–02–98
Stephan Martens – Technical Support Engineer

ENGLISH EN
BR2020/T(04–98) 3
SAFETY PRECAUTIONS
This machine is intended for commercial use. It is
designed to burnish smooth floors in an indoor
environment and is not constructed for any other
use. Use only recommended burnishing pads.
All operators must read, understand and
practice the following safety precautions.
The following safety alert symbol is used
throughout this manual as indicated in their
description:
WARNING: It warns the operator of
hazards and unsafe practices which could
result in severe personal injury or death.
CAUTION: It warns the operator of
unsafe practices which could cause damage
to the equipment.
The following information signals potentially
dangerous conditions to the operator or
equipment:
1. DO NOT OPERATE, MAINTAIN OR
SERVICE MACHINE:
– Unless trained and authorized.
– Unless operator manual is read and
understood.
– If it is not in proper operating
condition.
2. WHEN OPERATING MACHINE:
– Remove loose objects on floor. Loose
objects may become dangerous
projectiles if struck by revolving pad.
– Keep hands and feet away from
revolving pad.
– Keep machine moving to prevent
damage to finish or floor.
– Do not run machine where flammable
liquids or gases are present.
– Do not run on ramps or inclines
unless adequate personnel are present
for assistance.
– Always use extreme caution when
maneuvering.
3. BEFORE LEAVING OR SERVICING
MACHINE:
– Make sure machine is turned off and
key is removed.
– Stop on level surface.
– Set parking brake if equipped.
– Disconnect batteries.
WARNING: Always disconnect batteries
before servicing machine. Hazardous Voltage.
Shock or electrocution can result.
WARNING: Keep sparks and open flame
away. Batteries emit hydrogen gases,
explosion or fire can result.
WARNING: Charge batteries in a well
ventilated area and keep hood propped open.
Batteries emit hydrogen gas. Explosion or fire
can result. Keep sparks and open flame away.
WARNING: Wear protective gloves and
shield eyes when servicing batteries. Battery
acid can cause burns.
CAUTION: Do not store outdoors and
avoid getting wet.
CAUTION: The use of supplies other than
those recommended by manufacturer may
cause damage.
RECOMMENDED STOCK ITEMS
Refer to the Parts List for recommended stock
items. Stock Items are clearly identified with a
Bullet preceding the parts description. See
example below:

EN ENGLISH
4BR2020/T(04–98)
MACHINE COMPONENTS
1
7
3
2
10
8
49
11
12
13
14
15
16
18
19 20
21
17
22
23
56
1. Adjustable Control Console
2. Control Grips
3. Console Height Adjustment Levers
4. Main ON/OFF Switch
5. Pad ON/OFF Switch (BR2020T)
6. Pad Pressure Switch
7. Battery Meter
8. Pad Pressure Meter
9. Speed Control Knob (BR2020T)
10. Reverse Trigger (BR2020T)
11. Main Circuit Breaker Button
12. Key Switch
13. Power Kill Button
14. Hour Meter
15. Rear Tilt Wheels – for pad installation
16. Automatic Safety Shut–Off Switch
– for pad installation
17. Dust Control Bag Compartment
18. Wall Rollers
19. Battery Compartment Hood
20. Battery Charge Plug
21. Pad Driver
22. Main Wheels
23. Parking Brake (BR2020T)
CONTROL PANEL SYMBOLS
MainPower
Pad Motor
Circuit Breaker
Main Power
Circuit Breaker Read Manual
Before Operating
Battery
Charge Meter
Fast Speed
Slow Speed
Reverse
Pad Less Pad
Pressure
More Pad
Pressure
Pad Pressure
Meter
Parking Brake

ENGLISH EN
BR2020/T (04–98) 5
MACHINE INSTALLATION
UNCRATING MACHINE
Carefully check carton for signs of damage.
Report damages at once to carrier.
To uncrate your machine, remove straps and
carefully lift or use a ramp to remove machine
from pallet.
ATTENTION: To prevent dust skirt
damage, carefully TILT machine back when
removing from shipping crate.
CAUTION: Install batteries after removing
machine from pallet.
INSTALLING BATTERIES
WARNING: Wear protective gloves and
shield eyes when handling batteries. Battery
acid can cause burns.
WARNING: Keep sparks and open flame
away. Batteries emit hydrogen gases,
explosion or fire can result.
Recommended Battery Specifications:
Three 12 volt deep cycle batteries. Consult with
an Authorized Distributor for specific batteries.
Maximum battery dimensions are 78 mm W x 394
mm L x 362mm H.
FOR SAFETY: To prevent accidental
starting, be certain key is removed.
1. Position machine on a level surface and set
parking brake.
Set Parking Brake
2. Turn OFF all switches and remove key.
3. Unlatch battery hood latches and open battery
compartment. Remove loose battery cables.
Open Battery Compartment
4. Carefully install batteries into battery tray and
arrange battery posts as shown. After
batteries are in place remove battery handles
to allow clearance for battery hood.
BATTERY TRAY
CHARGER PLUG
MACHINE
FRONT
Battery Arrangement
WARNING: Do not drop batteries into
compartment! Battery and machine housing
damage may result. This damage is not
covered by Warranty.
5. Connect cables to battery posts as shown.
(RED TO POSITIVE & BLACK TO
NEGATIVE)
CONNECT LAST
–
CHARGER PLUG
MACHINE
FRONT
BLK
BLK
RED 31
RED
Connect Battery Cables
6. Double check cable connections and close
hood, fasten hood latches.

EN ENGLISH
6BR2020/T(04–98)
MACHINE SETUP
INSTALLING PAD
1. Turn off key and tilt machine back on rear
wheels.
FOR SAFETY: When machine is tilted back it
will automatically shut off power to pad
motor.
Tilt Machine back to Install Pad
CAUTION: Do not leave machine tilted
back for an extended time, battery acid may
leak.
2. Remove plastic center lock from pad driver by
turning lock counterclockwise.
3. Position pad centered on pad driver and
replace centerlock securely.
Installing Pad
IMPORTANT: Consult your authorized
distributor for pad recommendations.
Pad Specifications:
For 2000 RPM Burnishing.
1”/25,4 mm Thickness
20”/508mm Diameter with 3.5”/89mm center hole.
NOTE: Machine is not designed for spray buffing.
CAUTION: Make sure centerlock does not
cross thread or floor damage may occur.
CAUTION: Do not operate machine
without a pad and/or centerlock in place.
4. Return machine to operating position.
INSTALLING DUST CONTROL BAG
1. Open dust control bag compartment at front
of machine.
2. Slide bag on plastic snout. Close
compartment.
Installing Dust Control Bag
3. Empty or replace bag daily. Do not allow bag
to fill beyond half full.
ADJUSTING CONTROL GRIP HEIGHT
The machine has three control grip height
settings.
1. Locate two spring loaded levers below
console.
2. Squeeze levers together and lift or lower
control grips to a comfortable operating
height.
Adjusting Control Grip Height

ENGLISH EN
BR2020/T(04–98) 7
MACHINE OPERATION
Read and understand SAFETY PRECAUTIONS
section before operating machine.
PRE–OPERATION
1. Sweep floor and remove debris.
2. Check condition of pad.
3. Check battery charge level. (For accurate
reading brush must be spinning)
4. Check that dust control bag is installed.
5. Make sure floor is dry.
BURNISHING WITH THE BR2020
1. Turn on key and main power switch.
2. Twist control grips forward to lower pad to
floor and to start pad motor.
Twist Grips to Activate Pad
3. Begin burnishing by pushing machine forward.
NOTE: If machine vibrates, realign pad.
CAUTION: Keep machine moving at all
times to prevent floor damage, .
4. Adjust pad pressure meter within Green
Zone. Press the Pad Pressure switch to
decrease or increase pressure. For best
results adjust needle as shown.
Meter Needle
GREEN
ZONE RED ZONE
Pad Pressure Meter
CAUTION: Never operate in Red zone,
floor damage and brush motor overload may
result.
5. Release grips to stop burnishing. The pad will
automatically raise to the transport position.
CAUTION: When transporting machine
without burnishing, tilt machine back to
protect dust skirt.
BURNISHING WITH THE BR2020T
1. Release parking brake lever if set.
2. Turn on key, main power and brush switches.
3. Turn speed control knob to slowest speed.
This will prevent an abrupt take off.
Adjust Speed Control Knob
4. Twist control grips forward to begin
burnishing. Gradually turn speed control knob
to desired cleaning speed.
Twist Grips to Burnish
CAUTION: For first time users, operate at
a slow speed until maneuvering becomes
easy.
5. Adjust pad pressure meter within Green
Zone. Press the Pad Pressure switch to
decrease or increase pressure. For best
results adjust needle as shown.

EN ENGLISH
8BR2020/T(04–98)
Meter Needle
GREEN
ZONE RED ZONE
Pad Pressure Meter
CAUTION: Never operate in Red zone,
floor damage and brush motor overload may
result.
NOTE: If machine vibrates, realign pad.
CAUTION: Keep machine moving at all
times to prevent floor damage.
6. To stop machine, release control grips.
7. To operate machine in reverse, release grips
and pull reverse trigger (one speed).
Reverse Trigger
8. To transport machine, turn off pad switch and
twist control grips. Pad will automatically raise
to the transport position.
Turn Off Pad Switch
CAUTION: When transporting machine
without burnishing, tilt machine back to
protect dust skirt.
WHILE OPERATING MACHINE
WARNING: Keep hands and feet clear of
revolving pad.
1. Tilt machine back when operating over
thresholds and other floor obstructions to
protect dust skirt.
2. Always operate with caution when burnishing
around walls and obstacles.
3. Always reduce speed to maintain control
when turning.
4. Stay clear of floor obstructions, such as
electrical plates or grates, they will destroy
pad.
5. Change or turn pads over when soiled.
6. Check battery meter’s discharge level
periodically. Recharge when needle drops to
the red zone.
CAUTION: Do not operate machine when
battery meter needle is in the red zone, battery
damage will result.
7. If pad motor circuit breaker trips, reduce pad
pressure and/or replace soiled pad.
8. To stop burnishing release control grips. The
pad will automatically raise to the transport
position.
FOR SAFETY: When machine is left
unattended, stop on level surface, remove key
and set parking brake if equipped.
EMERGENCY STOPPING
To stop machine during an emergency, hit the red
power kill button located at rear of control
console. The power kill button immediately stops
all power to machine.
To reset power kill button, shut off all switches and
turn kill button to the right. Resume to normal
operation.
Power Kill Button

ENGLISH EN
BR2020/T(04–98) 9
CIRCUIT BREAKERS
Machine is equipped with two resettable circuit
breakers, Main (15A) and Pad Motor (80A), to
protect machine from damage. If pad motor circuit
breaker should trip, determine cause, allow motor
to cool, then reset. Pad circuit breaker will trip due
to excessive pad overload. Change pad or reduce
pad pressure if breaker should trip. Pad motor
circuit breaker button is located under battery
hood at front of machine.
Resettable Circuit Breakers
CHARGING BATTERIES
ATTENTION: RECHARGE BATTERIES ONLY
AFTER A TOTAL OF 30 MINUTES OF USE OR
MORE. THIS WILL PROLONG BATTERY LIFE.
ATTENTION: The following charging
instructions are intended for supplied 36V
chargers only. Or use a charger with the
following specifications to prevent battery
damage.
CHARGER SPECIFICATIONS:
OUTPUT VOLTAGE - 36 VOLTS
OUTPUT CURRENT - 35 AMPS
AUTOMATIC SHUTOFF CIRCUIT
FOR DEEP CYCLE BATTERY CHARGING
ATTENTION: For optimum machine operation,
keep batteries charged at all times. Never let
batteries set in a discharge condition for lengthy
periods.
CAUTION: Do not operate machine when
battery meter needle is in the red zone, battery
damage will result.
WARNING: Charge batteries in a well
ventilated area. Batteries emit hydrogen gas.
Explosion or fire can result. Keep sparks and
open flame away.
WARNING: Shield eyes when servicing
batteries and avoid contact with battery acid.
1. Transport machine to a well ventilated area
for charging.
2. Park machine on a level surface and turn off
all switches. Set parking brake if equipped.
3. Unlatch battery hood and open battery
compartment.
Open Battery Compartment
4. Check fluid level ‘‘A” in each battery cell. Do
not charge batteries unless fluid is slightly
covering battery plates ‘‘B”. If needed, add
just enough fluid to cover battery plates, do
not overfill. Batteries can overflow during
charging due to expansion. Replace cell caps
before charging.
A
B
Check Battery Fluid Level
5. With charger disconnected from machine,
plug charger’s power cord into a grounded
wall outlet.
Grounded
Grounding
Edge/hole
Outlet
Connect Grounded Outlet
WARNING: To avoid an electrical hazard,
charger must be grounded while in use to
protect user from electric shock and serious
injury.

EN ENGLISH
10 BR2020/T(04–98)
6. Plug battery charger into machine’s charging
receptacle as shown. Flip up hood support
stand and rest hood on stand.
Charging Batteries
WARNING: Keep hood propped open
when charging batteries to promote
ventilation.
NOTE: Once the charger is connected to the
machine, machine becomes inoperable.
7. Charger will automatically begin charging and
shut off when fully charged.
8. When disconnecting charger, always unplug
charger from wall outlet first.
MAINTENANCE
WARNING: Before attempting any
maintenance procedures on machine; stop on
level surface, turn off key, set parking brake
and disconnect battery charger if charging
batteries.
WARNING: Before attempting any
machine repair; disconnect batteries. Repairs
must be performed by authorized personnel.
To keep machine in good working condition,
simply follow machines daily, weekly and monthly
maintenance procedures:
DAILY MAINTENANCE
1. Remove burnishing pad and clean or replace.
2. Empty or replace dust control bag.
3. Clean machine housing with damp cloth.
4. Recharge batteries.
ATTENTION: RECHARGE BATTERIES ONLY
AFTER A TOTAL OF 30 MINUTES OF USE OR
MORE. THIS WILL PROLONG BATTERY LIFE.
WEEKLY MAINTENANCE
1. Check fluid level in battery cells.
2. Clean battery tops of corrosion.
3. Check for loose or corroded battery cables.
MONTHLY MAINTENANCE
1. Lubricate caster with a water resistant grease.
2. Lubricate wheel grease fittings with a water
resistant grease (BR2020 Model).
3. Check machine for loose nuts and bolts.
4. Check condition of dust skirt, replace if worn.
EVERY 250 HOURS OF OPERATION
Check motor(s) for carbon brush wear, replace
brushes if worn to a length of 3/8” (1cm) or less.
BATTERY MAINTENANCE
WARNING: Keep sparks and open flame
away. Batteries emit hydrogen gas, explosion
or fire can result.
WARNING: Shield eyes when servicing
batteries. Avoid contact with battery acid and
keep all metal objects off batteries.
1. Always follow proper charging instructions.
(See CHARGING BATTERIES)
2. Each week after charging, check water level
in each battery cell. Fluid level (A) should
reach bottom of sight tubes (B). Add fluid if
necessary, do not overfill.
A
B
Correct Fluid Level After Charging

ENGLISH EN
BR2020/T(04–98) 11
3. Keep battery tops and terminals clean and
dry.
a. Mix a strong solution of baking soda and
water.
b. Brush solution sparingly over battery tops,
terminal and cable connectors.
NOTE: Do not allow baking soda solution to
enter battery cells.
c. Use wire brush to clean terminal post and
cable connections.
d. After cleaning, apply a coating of clear
battery post protectant to terminals and
cable connections.
4. Check for loose or worn cables. Replace if
worn.
TRANSPORTING MACHINE
When transporting machine by use of trailer or
truck, be certain to follow tie–down procedures
below:
ATTENTION: TILT machine back when
loading and unloading to prevent dust skirt
damage.
WARNING: Use adequate personnel for
assistance when loading and unloading
machine.
1. Load machine using a recommended loading
ramp.
2. Position front of machine up against front of
trailer of truck.
3. Set parking brake if equipped and place
blocks behind the main wheels.
4. Place tie–down straps over top of machine
and secure straps to floor. It may be
necessary to install tie–down brackets to the
floor of your trailer or truck.
CAUTION: Do not transport machine
tilted back, battery acid may leak.
STORING MACHINE
Store machine in a dry area in the upright
position.
CAUTION: Do not store machine tilted
back, battery acid may leak.
CAUTION: Do not expose to rain. Store
indoors.
SPECIFICATIONS
Model BR2020 BR2020T
LENGTH 132cm 132cm
WIDTH 61 cm 61 cm
HEIGHT 102cm 102cm
WEIGHT WITH BATTERIES 238 Kg 245 Kg
DRIVE SYSTEM N/A (Pad assisted) .2 hp Transaxle
DRIVE SPEED N/A 0–73M min.
PAD WIDTH 508 mm 508 mm
PAD MOTOR 36V, 3hp, 2000 rpm, 80A, 2238W 36V, 3hp, 2000 rpm, 80A, 2238W
PAD PRESSURE Variable 7 – 19 kg Variable 7 –19 kg
DUST CONTROL BAG Cloth – 98% @ 1.0 micron Cloth Bag – 98% @ 1.0 micron
BATTERIES 3–12 Volt (optional) 3–12 Volt (optional)
RUN TIME, CONTINUOUS Up to 2.4 hours Up to 2.2 hours
DECIBEL RATING AT
OPERATOR’S EAR, INDOORS ON
TILE
70dB(A) 70dB(A)

EN ENGLISH
12 BR2020/T(04–98)
TROUBLE SHOOTING
PROBLEM CAUSE SOLUTION
No Power. Faulty main or key switch. Contact Service Center.
Faulty battery(s). Replace battery(s)
Loose battery cable. Tighten loose cables.
Improper battery cable connection. See Installing Batteries.
Tripped Main circuit breaker. Determine cause and reset breaker.
Charger is connected. Disconnect Battery charger
Power kill button is activated. Turn button to reset.
Pad motor does not
t
Faulty roll switch. Contact Service Center.
operate. Tripped pad motor circuit breaker. Change pad or adjust pad pressure.
Reset breaker.
Faulty brush switch. Contact Service Center.
Faulty contactor. Contact Service Center.
Faulty wiring. Contact Service Center.
Faulty pad drive motor. Contact Service Center.
Worn carbon brushes Contact Service Center.
Tilt safety switch is activated or faulty. Lower machine from tilt position.
Drive motor does not
tt
Parking brake is set. Release parking brake.
operate or operates
incorrectly
Faulty roll switch. Contact Service Center.
i
ncorrec
tl
y. Faulty speed control board
or connection. Contact Service Center.
Faulty solenoid. Contact Service Center.
Faulty drive motor. Contact Service Center.
Faulty wiring. Contact Service Center.
Worn carbon brushes. Contact Service Center.
Faulty potentiometer or speed control
board. Contact Service Center.
Loose wire connection. Contact Service Center.
Short run time. Low battery charge. Charge batteries.
Defective battery cell(s). Replace battery.
Batteries need maintenance. See Battery Maintenance.
Faulty battery charger. Replace charger.