Tennant 2550 User manual

Operator Manual
Dust Control Burnisher
English EN
2550
611581
Rev. 01 (05-2006)
Model Part No.:
M611373
*611581*
www.tennantco.com

EN OPERATION
2Tennant 2550 (05--06)
This manual is furnished with each new model.
It provides necessary operation and maintenance
instructions.
Read this manual completely and understand the
machine before operating or servicing it.
A complete illustrated Parts List manual is also
furnished with each new model. Use the Parts List
manual to order replacement parts. Before ordering
parts or supplies, be sure to have your machine model
number and serial number available. Parts and
supplies may be ordered by phone or mail from any
authorized parts and service center, distributor or from
any of the manufacturer’s subsidiaries.
This machine will provide excellent service. However,
the best results will be obtained at minimum costs if:
SThe machine is operated with reasonable care.
SThe machine is maintained regularly - per the
machine maintenance instructions provided.
SThe machine is maintained with manufacturer
supplied or equivalent parts.
PROTECT THE ENVIRONMENT
Please dispose of packaging materials,
old machine components such as
batteries, hazardous fluids such as
antifreeze and oil, in a safe
environmentally way according to your
local waste disposal regulations.
Always remember to recycle.
TENNANT N.V.
Industrielaan 6 5405 AB
P.O. Box 6 5400 AA Uden--The Netherlands
[e-mail]
www.tennantco.com
Specifications and parts are subject to change without notice.
Copyright E2001, 2006 Tennant Company. All rights reserved.
MACHINE DATA
Please fill out at time of installation for future reference.
Model No.-
Install. Date -
Serial No.-
Richard van den Hoogen -- Technical Support Engineer
EC DECLARATION OF CONFORMITY FOR MACHINERY (Directive 98//37/EEC, Annex II, sub A)
TENNANT N.V.
Address: Industrielaan 6 5405 AB
P.O. Box 6 5400 AA Uden--The Netherlands
Model: 2550 nr.: M611373
EN
Uden/Netherlands, 26--05--04
Herewith declares, on our own responsibility, that the machinery
-- is in conformity with the provisions of the Machinery Directive (98/37/EEC), as amended
with national implementing legislation
-- is in conformity with the provisions of the E.M.C. Directive (89/336/EEC), as amended with 91/263 EEC,
92/31 EEC, 93/67EEC , 93/68 EEC
and that
-- the following (parts/clauses of) harmonized standards have been applied: EN: 292--1, 292--2, 292--3,
1050, 418, 982, 1037, 60204--1,61310--1, 61310--2, 457, 614--1, 1005--3, 563, 50081--2, 50082--2, 12895,
ISO: 3744, 3746
-- the following (parts/clauses of) national technical standards and specifications have been used: NA

OPERATION EN
Tennant 2550 (05--06) 3
TABLE OF CONTENTS
SAFETY PRECAUTIONS 4....................
MACHINE COMPONENTS 5...................
CONTROL PANEL SYMBOLS 5...............
MACHINE INSTALLATION 6...................
UNCRATING MACHINE 6..................
INSTALLING BATTERIES 6................
MACHINE SETUP 7..........................
INSTALLING PAD 7.......................
INSTALLING DUST CONTROL BAG 7.......
ADJUSTING CONTROL GRIP HEIGHT 7....
MACHINE OPERATION 8.....................
PRE--OPERATION 8.......................
BURNISHING WITH THE MACHINE 8.......
WHILE OPERATING MACHINE 9...........
EMERGENCY STOP SWITCH 9............
CIRCUIT BREAKERS 9....................
CHARGING BATTERIES 9....................
MACHINE MAINTENANCE 10..................
DAILY MAINTENANCE 11...................
WEEKLY MAINTENANCE 11................
MONTHLY MAINTENANCE 11...............
QUARTERLY MAINTENANCE 11............
BATTERY MAINTENANCE 12...............
TRANSPORTING MACHINE 12.................
STORING MACHINE 12........................
RECOMMENDED STOCK ITEMS 12.............
TROUBLE SHOOTING 13......................
SPECIFICATIONS 14..........................

EN OPERATION
4Tennant 2550 (02--01)
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 symbols are used throughout
this manual as indicated in their description.
WARNING: To warn of hazards or unsafe
practices which could result in severe personal
injury or death.
FOR SAFETY: To identify actions which must be
followed for safe operation of equipment.
The following information signals potentially dangerous
conditions to the operator or equipment:
FOR SAFETY:
1. Do not operate machine:
-- Unless trained and authorized.
-- Unless operation manual is read and
understood.
-- In flammable or explosive areas unless
designed for use in those areas.
-- Without dust bag in place.
2. Before starting machine:
-- Make sure all safety devices are in place
and operate properly.
3. When using machine:
-- Go slow on inclines and slippery surfaces.
-- Use care when reversing machine.
-- Always follow safety and traffic rules.
-- Report machine damage or faulty
operation immediately.
4. Before leaving or servicing machine:
-- Stop on level surface.
-- Turn off machine.
-- Set parking brake.
5. When servicing machine:
-- Avoid moving parts. Do not wear loose
jackets, shirts, or sleeves.
-- Block machine tires before jacking
machine up.
-- Use hoist or jack of adequate capacity to
lift machine.
-- Disconnect battery connections before
working on machine.
-- Wear protective gloves when handling
batteries or battery cables.
-- Avoid contact with battery acid.
-- Use manufacturer supplied or approved
replacement parts.
6. When transporting machine:
-- Do not lift machine if batteries are
installed.
WARNING: Batteries emit hydrogen gas.
Explosion or fire can result. Keep sparks and
open flame away. Keep battery compartment open
when charging.
WARNING: Flammable materials or reactive
metals can cause explosion or fire. Do not pick
up.
WARNING: Moving parts. Turn off power
before working on machine.

OPERATION EN
Tennant 2550 (02--01) 5
MACHINE COMPONENTS
13
14
9
2
10
12
11
3
16
23 15
23
22
21
18
17
19
8
7
4 5 6
1
20
1. Adjustable Control Console
2. Control Grips
3. Console Height Adjustment Levers
4. Main ON/OFF Switch
5. Pad ON/OFF Switch
6. Pad Pressure Switch
7. Battery Meter
8. Pad Pressure Meter
9. Speed Control Knob
10. Reverse Trigger
11. Main Circuit Breaker Button
12. Key Switch
13. Emergency Stop Switch
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
CONTROL PANEL SYMBOLS
Main Power
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

EN OPERATION
6Tennant 2550 (02--01)
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: Install batteries after removing
machine from pallet.
FOR SAFETY: When transporting machine, do not
lift machine if batteries are installed.
INSTALLING BATTERIES
WARNING: Batteries emit hydrogen gas.
Explosion or fire can result. Keep sparks and
open flame away. Keep battery compartment open
when charging.
FOR SAFETY: When servicing machine, wear
protective gloves when handling batteries or
battery cables. Avoid contact with battery acid.
Recommended Battery Specifications:
Three 12 volt deep cycle batteries. Consult with an
Authorized Distributor for specific batteries. Maximum
battery dimensions are 78mm W x 394mm L x
362mm H.
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off machine
and set parking brake.
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.
CHARGER PLUG
MACHINE
FRONT
BATTERY TRAY
Battery Arrangement
ATTENTION: Do not drop batteries into
compartment. Battery and machine housing
damage may result.
5. Connect cables to battery posts as shown,
(RED TO POSITIVE & BLACK TO NEGATIVE).
--
CHARGER PLUG
MACHINE
FRONT
BLK
BLK
RED
31
RED
CONNECT LAST
Connect Battery Cables
6. Apply a light coating of non--metallic grease or
protective spray to prevent battery corrosion.

OPERATION EN
Tennant 2550 (05--06) 7
MACHINE SETUP
INSTALLING PAD
NOTE: Consult your authorized distributor for pad
recommendations.
Pad Specifications:
SFor 2000 RPM Burnishing.
S25.4 mm (1 in) Thickness
S508mm (20 in) Diameter with 89mm (3.5 in) center hole.
NOTE: Machine is not designed for spray buffing.
1. Turn off machine and tilt machine back on rear
wheels.
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off machine
and set parking brake.
NOTE: When machine is tilted back completely, power
to pad motor automatically shuts off.
Tilt Machine back to Install Pad
ATTENTION: Do not leave machine tilted back for
an extended time, battery acid may leak.
2. Remove the plastic centerlock from pad driver by
squeezing the retainer clip on the centerlock
3. Position pad centered on pad driver and replace
centerlock securely.
Installing Pad
ATTENTION: Do not operate machine without a
pad and/or centerlock in place.
4. After installing pad, 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

EN OPERATION
8Tennant 2550 (02--01)
MACHINE OPERATION
FOR SAFETY: Do not operate machine unless
operator manual is read and understood.
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 MACHINE
1. Release parking brake lever if set.
2. Turn on key, main power and pad 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
FOR SAFETY: When using machine, go slow on
inclines and slippery surfaces.
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.
Meter Needle
GREEN
ZONE
RED
ZONE
Pad Pressure Meter
ATTENTION: Do not operate machine in red zone,
floor damage and brush motor overload may
result.
NOTE: If machine vibrates, realign pad.
ATTENTION: Keep machine moving at all times to
prevent floor damage.
6. To stop machine, release grips. The pad will
automatically raise to the transport position.
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

OPERATION EN
Tennant 2550 (02--01) 9
WHILE OPERATING MACHINE
1. Always operate with caution when burnishing
around walls and obstacles.
2. Always reduce speed to maintain control when
turning.
3. Stay clear of floor obstructions, such as electrical
plates or grates, they will destroy pad. Tilt machine
back to avoid floor obstructions.
NOTE: When machine is tilted back completely,
power to pad motor automatically shuts off.
4. Change or turn pads over when soiled.
5. Check battery meter’s discharge level periodically.
Recharge when needle drops to the red zone.
ATTENTION: Do not operate machine in red zone,
floor damage and brush motor overload may
result.
6. If pad motor circuit breaker trips, reduce pad
pressure and/or replace soiled pad.
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off machine
and set parking brake.
FOR SAFETY: When transporting machine, do not
lift machine if batteries are installed.
EMERGENCY STOP SWITCH
To stop machine during an emergency, hit the red
emergency stop switch located at rear of control
console. The emergency stop switch immediately
stops all power to machine.
To reset emergency stop switch, shut off all switches
and turn red button to the right. Resume to normal
operation.
Emergency Stop Switch
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
NOTE: Recharge batteries ONLY after a total of 30
minutes of use or more. This will prolong battery life.
The following charging instructions are intended
for supplied 36V chargers only. Only use a
charger with the following specifications to
prevent battery damage.
CHARGER SPECIFICATIONS:
SOUTPUT VOLTAGE - 36 VOLTS
SOUTPUT CURRENT - 25 AMPS MAXIMUM
SAUTOMATIC SHUTOFF CIRCUIT
SFOR DEEP CYCLE BATTERY CHARGING
NOTE: For optimum machine operation, keep
batteries charged at all times. Never let batteries set in
a discharge condition for lengthy periods.
WARNING: Batteries emit hydrogen gas.
Explosion or fire can result. Keep sparks and
open flame away. Keep battery compartment open
when charging.
FOR SAFETY: When servicing machine, wear
protective gloves when handling batteries or
battery cables. Avoid contact with battery acid.

EN OPERATION
10 Tennant 2550 (02--01)
1. Transport machine to a flat, dry surface in a well--
ventilated area for charging.
2. Turn off all switches and key. Set parking brake.
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off machine
and set parking brake.
3. Unlatch battery hood and open battery
compartment.
Open Battery Compartment
4. Before charging batteries, check electrolyte level
(A) in each battery cell. Do not charge batteries
unless electrolyte is slightly covering battery plates
(B). If battery plates (B) are exposed, add just
enough distilled water to slightly cover plates, level
(A). Never add acid to batteries. 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’s power supply cord unplugged,
connect battery charger into machine as shown.
Flip up hood support stand and rest hood on stand
to promote ventilation.
Charging Batteries
NOTE: Once the charger is connected to the
machine, machine will become inoperable.
6. Then plug charger’s power supply cord into a
grounded wall outlet.
FOR SAFETY: Do not operate charger unless cord
is properly grounded.
Grounded
Grounding
Edge/hole
Outlet
Connect to Grounded Outlet
7. Charger will automatically begin charging and
automatically shut off when fully charged.
8. After charger has turned off, unplug charger from
wall outlet first then disconnect charger from
machine.
9. Recheck battery electrolyte level (A) after
charging. Add distilled water to bring level 1cm
from bottom of sight tubes (B). Replace cell caps
securely and wipe off the top of batteries with a
clean cloth.
A
B
Recheck Electrolyte Level
MACHINE MAINTENANCE
To keep machine in good working condition, simply
follow machines daily, weekly and monthly
maintenance procedures:
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off machine
and set parking brake.
FOR SAFETY: When servicing machine,
disconnect battery connections before working on
machine.
FOR SAFETY: When transporting machine, do not
lift machine if batteries are installed.

OPERATION EN
Tennant 2550 (02--01) 11
DAILY MAINTENANCE
(Every 4 Hours of Use)
1. Remove burnishing pad and clean or replace.
Clean or Replace Pad
2. Empty or replace dust control bag.
Empty or Replace Dust Control Bag
3. Clean machine housing with damp cloth.
Clean Machine Housing with Damp Cloth
4. Check fluid level in battery cells (See BATTERY
MAINTENANCE).
5. Recharge batteries (See CHARGING
BATTERIES).
Note: Recharge batteries only after a total of 30
minutes of use or more. This will prolong battery life.
WEEKLY MAINTENANCE
(Every20HoursofUse)
1. Clean battery tops of corrosion (See BATTERY
MAINTENANCE).
2. Check for loose or corroded battery cables.
MONTHLY MAINTENANCE
(Every80HoursofUse)
1. Lubricate caster with a water resistant grease.
2. Check machine for loose nuts and bolts.
3. Check condition of dust skirt, replace if worn.
Check Condition of Dust Skirt
QUARTERLY MAINTENANCE
(Every 250 Hours of Use)
Check motor(s) for carbon brush wear, replace
brushes if worn to a length of 10mm (0.38 in) or less.
Contact your Authorized Service Center for carbon
brush inspection.
Check Motor(s) for Carbon Brush Wear

EN OPERATION
12 Tennant 2550 (02--01)
BATTERY MAINTENANCE
WARNING: Batteries emit hydrogen gas.
Explosion or fire can result. Keep sparks and
open flame away. Keep battery compartment open
when charging.
FOR SAFETY: When servicing machine, wear
protective gloves when handling batteries or
battery cables. Avoid contact with battery acid.
1. Always follow proper charging instructions (see
CHARGING BATTERIES).
2. Each week after charging, check fluid level (A) in
each battery cell of all batteries. The level should
be 1cm from bottom of sight tubes (B). If needed,
add just enough distilled water to raise level 1cm
from bottom of sight tubes. DO NOT overfill.
A
B
Correct Fluid Level After Charging
3. Keep battery tops and terminals clean and dry.
To clean batteries:
a. Mix a strong solution of baking soda and
water.
Mix Baking Soda and Water
b. Brush solution sparingly over battery tops,
terminals, and cable connectors.
NOTE: Do not allow baking soda solution to enter
battery cells.
c. Use wire brush to clean terminals 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.
1. Load machine using a recommended loading
ramp.
NOTE: If lifting machine, you must remove batteries.
FOR SAFETY: When transporting machine, do not
lift machine if batteries are installed.
2. Position front of machine up against front of trailer
or truck bed.
3. Set parking brake, 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.
NOTE: Do not use control grips to secure machine for
transporting.
ATTENTION: Do not transport machine tilted back,
battery acid may leak.
STORING MACHINE
Store machine in a dry area in the upright position.
ATTENTION: Do not store machine tilted back,
battery acid may leak.
ATTENTION: Do not expose to rain. Store indoors.
RECOMMENDED STOCK ITEMS
Refer to the Parts List Manual for recommended stock
items. Stock Items are clearly identified with a bullet
preceding the parts description. See example below:

OPERATION EN
Tennant 2550 (02--01) 13
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
Emergency stop switch is activated. Turn button to reset.
Pad motor does not operate. Faulty roll switch. Contact Service Center.
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 operate or
operates incorrectly.
Parking brake is set. Release parking brake.
Faulty roll switch. Contact Service Center.
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.

EN OPERATION
14 Tennant 2550 (02--01)
SPECIFICATIONS
Model 2550
LENGTH 1321mm (52 in)
WIDTH 609mm (24 in)
HEIGHT 1016mm (40 in)
WEIGHT WITH BATTERIES 245 Kg (540 lb)
DRIVE SYSTEM .15 kWTransaxle
DRIVE SPEED 0--73m (0--240 ft) per min.
PAD WIDTH 508mm (20 in)
PAD MOTOR 36V, .22kW , 2000 rpm, 80A, 2238W
PAD PRESSURE Variable 7--19 kg (15--40 lb)
DUST CONTROL BAG Cloth Bag -- 98% @ 1.0 micron
BATTERIES 3--215amp/hour, 12v deep cycle
RUN TIME, CONTINUOUS Up to 2.2 hours
DECIBEL RATING AT OPERATOR’S EAR,
INDOORS ON TILE
70dB(A)