Tennant 5280 Product manual

Scrubber
5280
Operator and Parts Manual
610168
Rev. 02 (10-04)
Model No.:
610678
610679 - PAC

OPERATION
2
Tennant 5280 (10--04)
This manual is furnished with each new model. It
provides necessary operation and maintenance
instructions and an illustrated parts list.
Read this manual completely and understand the
machine before operating or servicing it.
Use the illustrated Parts Lists to order parts. Before
ordering parts or supplies, be sure to have your
machine model number and serial number handy.
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:
S The machine is operated with reasonable care.
S The machine is maintained regularly - per the
maintenance instructions provided.
S The machine is maintained with manufacturer
supplied or equivalent parts.
Tennant Company
PO Box 1452
Minneapolis, MN 55440
Phone: [phone] or (763) 513--2850
www.tennantco.com
MACHINE DATA
Please fill out at time of installation for future reference.
Model No.-
Install. Date -
Serial No.-
E2000, 2002, 2004 Tennant Company Printed in U.S.A.

OPERATION
Tennant 5280 (10--04)
3
TABLE OF CONTENTS
SAFETY PRECAUTIONS 4....................
SAFETY LABELS 5...........................
MACHINE COMPONENTS 6...................
CONTROLS AND INSTRUMENTS 7............
CONTROL PANEL SYMBOLS 7...............
MACHINE INSTALLATION 8...................
UNCRATING MACHINE 8..................
INSTALLING BATTERIES 8................
MACHINE SETUP 9..........................
ATTACHING SQUEEGEE ASSEMBLY 9.....
LEVELING SQUEEGEE 9..................
ATTACHING BRUSH/PAD DRIVER 10........
REMOVING BRUSH/PAD DRIVER 10........
ADJUSTING SCRUB HEAD SKIRT HEIGHT 11
FILLING SOLUTION TANK 11...............
MACHINE OPERATION 12.....................
PRE--OPERATION CHECKS 12..............
SCRUBBING WITH MACHINE 12............
OPERATING ES (OPTION) 14...............
WHILE OPERATING MACHINE 15...........
CIRCUIT BREAKERS 15....................
OPERATING OFF-AISLE WAND (OPTION) 15.
DRAINING TANKS 17..........................
DRAINING RECOVERY TANK 17............
DRAINING SOLUTION TANK 18.............
CHARGING BATTERIES 18....................
BATTERY DISCHARGE INDICATOR 20.......
MACHINE MAINTENANCE 20..................
DAILY MAINTENANCE 20...................
MONTHLY MAINTENANCE 21...............
QUARTERLY MAINTENANCE 22............
BATTERY MAINTENANCE 22...............
SQUEEGEE BLADE REPLACEMENT 23......
SCRUB HEAD SKIRT REPLACEMENT 23....
MACHINE JACKING 24........................
TRANSPORTING MACHINE 24.................
STORING MACHINE 24........................
RECOMMENDED STOCK ITEMS 24.............
TROUBLESHOOTING 25.......................
SPECIFICATIONS 27..........................
MACHINE DIMENSIONS 27....................
ELECTRICAL DIAGRAMS 28...................
PARTS LIST 30...............................
REPLACEMENT BRUSHES AND
PAD DRIVER GROUP 30...................
SOLUTION TANK AND
VACUUM MOTOR GROUP 32...............
SOLUTION CONTROL GROUP 34...........
RECOVERY TANK GROUP 36...............
CONSOLE GROUP 38......................
CONSOLE PANEL GROUP 40...............
MAIN FRAME GROUP 42...................
SCRUB HEAD LIFT GROUP 44
..............
SCRUB BRUSH DRIVE GROUP 46..........
SCRUB BRUSH DOWN PRESSURE GROUP 48
SQUEEGEE LIFT GROUP 50................
SQUEEGEE GROUP 52....................
BATTERY AND CHARGER GROUP 54.......
BATTERY CABLE GROUP 55...............
OPTIONS 56..................................
WET PICK--UP TOOL KIT 56................
NON--POWER WAND GROUP 57............
POWER WAND GROUP 58.................
DELUXE POWER WAND GROUP 60.........
NON--POWER WAND HOSE GROUP 62......
POWER WAND HOSE GROUP 63...........
ACCESSORY CONSOLE GROUP 64.........
WAND PUMP PLUMBING GROUP 66........
ES (EXTENDED SCRUB)
PLUMBING GROUP 67.....................
SOUND KIT 68.............................

OPERATION
4
Tennant 5280 (10--04)
SAFETY PRECAUTIONS
This machine is intended for commercial use. It is
designed exclusively to scrub hard floors in an
indoor environment and is not constructed for any
other use. Use only recommended pads, brushes
and commercially available floor cleaners
intended for machine application.
All operators must read, understand and practice
the following safety precautions.
The following warning alert symbol and the “FOR
SAFETY” heading 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.
Failure to follow these warnings may result in
personal injury, electrical shock, fire or explosion.
WARNING: Fire Or Explosion Hazard:
-- Never Use Flammable Liquids Or Operate
Machine in Or Near Flammable Liquids,
Vapors Or Combustible Dusts.
This machine is not equipped with explosion proof
motors. The electric motors will spark upon start
up and during operation which could cause a flash
fire or explosion if machine is used in an area
where flammable vapors/liquids or combustible
dusts are present.
-- Do Not Pick Up Flammable Materials Or
Reactive Metals.
-- Batteries Emit Hydrogen Gas. Keep Sparks
And Open Flame Away. Keep Battery
Compartment Open When Charging.
WARNING: Electrical Hazard. Disconnect
Battery Cables Before Servicing Machine.
WARNING: Spinning Brush. Keep Hands
Away. Turn Off Power Before Working On
Machine.
The following information signals potentially
dangerous conditions to the operator or
equipment:
FOR SAFETY:
1. Do not operate machine:
-- With flammable liquids or near flammable
vapors as an explosion or flash fire may
occur.
-- Unless trained and authorized.
-- Unless operation manual is read and
understood.
-- If not in proper operating condition.
2. Before operating machine:
-- Make sure all safety devices are in place
and operate properly.
3. When using machine:
-- Go slow on inclines and slippery surfaces.
-- Wear non--slip shoes.
-- Reduce speed when turning.
-- Report machine damage or faulty
operation immediately.
-- Never allow children to play on or around.
-- Follow mixing and handling instructions
on chemical containers.
4. Before leaving or servicing machine:
-- Stop on level surface.
-- Turn off machine.
-- Remove key, if equipped.
5. When servicing machine:
-- Avoid moving parts. Do not wear loose
jackets, shirts, or sleeves.
-- Block machine tires before jacking up.
-- Jack machine up at designated locations
only. Block machine up with jack stands.
-- Use hoist or jack that will support the
weight of the machine.
-- Do not power spray or hose off machine.
Electrical malfunction may occur.
-- Disconnect battery connections before
working on machine.
-- Wear protective gloves and eye protection
when handling batteries or battery cables.
-- Avoid contact with battery acid.
-- Use manufacturer supplied or approved
replacement parts.
-- All repairs must be performed by a
qualified service person.
-- Do not modify the machine from its
original design.

OPERATION
Tennant 5280 (10--04)
5
6. When transporting machine:
-- Turn machine off.
-- Get assistance when lifting machine.
-- Do not lift machine when batteries are
installed.
-- Use a recommended ramp when
loading/unloading into/off truck or trailer.
-- Use tie--down straps to secure machine to
truckortrailer.
-- Put the scrub head in the lowered
position.
SAFETY LABELS
The safety labels appear on the machine in the locations indicated. Replace labels if they are missing or become
damaged or illegible.
WARNING LABEL --
Located on the recovery tank cover.
MOVING PARTS LABEL --
Located on scrub head
WARNING: Spinning Brush.
Keep Hands Away. Turn Off
Power Before Working On
Machine.
READ MANUAL LABEL --
Located on control panel.
FOR SAFETY: Do not operate
machine unless operator manual
is read and understood.

OPERATION
6
Tennant 5280 (10--04)
MACHINE COMPONENTS
A
CD
E
F
G
H
I
J
K
L
B
C
O
M
N
A. Solution Tank
B. Recovery Tank
C. Scrub Head
D. ScrubHeadAccessCover
E. Solution Tank Fill Opening
F. Batteries
G. Recovery Tank Cover
H. Solution Tank Drain Hose
I. Recovery Tank Drain Hose
J. Control Console Panel
K. Recovery Tank Support Stand
L. Squeegee
M. Scrub Head Lift Pedal
N. Scrub Head Release Pedal
O. Squeegee Leveling Knob

OPERATION
Tennant 5280 (10--04)
7
CONTROLS AND INSTRUMENTS
BD
EF
G
HI
J
K
L
M
A
O
A
P
NQ
C
R
A. Control Grips
B. Battery Discharge Indicator
C. Squeegee Lever
D. Brush Pressure Gauge
E. Machine Power Switch
F. Solution Switch
G. ES Pump On Light (Option)
H. ES Switch (Option)
I. Power Wand Switch (Option)
J. Hourmeter (Option)
K. On-off Key Switch (Option)
L. Circuit Breakers
M. Solution Flow Knob
N. Solution Tank Drain Hose
O. Brush Pressure Knob
P. Brush Pressure Indicator
Q. Recovery Tank Drain Hose
R. Charger Plug
CONTROL PANEL SYMBOLS
Solution Flow Main Power
Circuit Breaker
Battery Discharge
Indicator
Vacuum Motor
Circuit Breaker
Extended Scrub
(Option)
Off-Aisle Wand
(Option)
ES Pump Light
(Option)
R
Main Power Scrub Brush
Circuit Breaker
Key Switch
(Option)
Light Brush
Pressure
Heavy Brush
Pressure
Hour Meter
(Option)

OPERATION
8
Tennant 5280 (10--04)
MACHINE INSTALLATION
UNCRATING MACHINE
1. Carefully check carton for signs of damage.
Report damages at once to carrier.
2. Check Carton Contents list, contact distributor for
missing items.
Carton Contents:
1 -- Battery Tray #601991
1 -- Red Battery Cable #603061
4 -- Battery Post Caps #45962
1 -- Red Battery Boot #611222
1 -- Black Battery Boot #611221
2 -- Bumper Wheels #579184 (to be installed on
scrub head)
4 -- Battery Spacers #630375
1 -- Squeegee Assembly #610989
2 -- Batteries #130869 (included with Machine
PAC #610679)
1 -- Battery Charger #603553 (included with
Machine PAC #610679)
1 -- Pad Driver #222303 (included with Machine
PAC #610679)
NOTE: Brushes and Pads must be purchased
separately.
3. To uncrate your machine, unbolt scrub head from
shipping pallet and remove the shipping hardware
and straps that secure the machine to the pallet.
Position a ramp at the rear of the machine and
carefully back the machine off the pallet.
ATTENTION: Do not roll machine off pallet unless
a ramp is used, machine damage may occur.
ATTENTION: To prevent possible machine
damage, install batteries after removing machine
from shipping pallet.
4. Install bumper wheels on scrub head.
INSTALLING BATTERIES
WARNING: Fire Or Explosion Hazard.
Batteries Emit Hydrogen Gas. Keep Sparks And
Open Flame Away. Keep Battery Hood Open When
Charging.
FOR SAFETY: When servicing machine, wear
protective gloves and eye protection when
handling batteries and battery cables. Avoid
contact with battery acid.
Recommended Battery Specifications:
Two 12 volt, deep cycle, 130 Amp hour lead acid
batteries. Maximum battery dimensions are 178 mm
(7 in) W x 381 mm (15 in) L x 372 mm (14.63 in) H.
1. Hinge open recovery tank to access battery
compartment (Figure 1).
FIG. 1
2. Carefully install batteries into battery compartment
tray with battery posts positioned as shown.
Secure batteries with battery stops (Figure 2).
Machine
Front RED
BLACK
BATTERY STOPS
1
3
2
FIG. 2
ATTENTION: Do not drop the batteries into the
compartment, battery and machine housing
damage may result.
3. Before connecting battery cables, make sure
terminals and posts are clean. Use a post cleaner
and wire brush to clean posts and terminals.
4. Apply a light coating of non-metallic grease or
protective spray on the cable connections to
prevent battery corrosion.
5. Connect cables to battery posts in numerical order
as labeled, RED TO POSITIVE & BLACK TO
NEGATIVE, use battery post covers and rubber
boots supplied (Figure 2).
6. Check battery discharge indicator. Machine must
be in full operation for accurate reading (See
MACHINE OPERATION). Charge batteries if
necessary.

OPERATION
Tennant 5280 (10--04)
9
MACHINE SETUP
ATTACHING SQUEEGEE ASSEMBLY
FOR SAFETY: Before leaving or servicing
machine, stop on level surface and turn off
machine.
1. Pull squeegee lever outward and to the right to
lock the squeegee pivot bracket in the raised
position (Figure 3).
FIG. 3
2. Place squeegee under pivot bracket, line up
mounting studs with squeegee slots and tighten
thumbscrews (Figure 4).
FIG. 4
3. Connect the vacuum hose to the squeegee
assembly. Loop the hose as shown using the hose
clip provided (Figure 5).
FIG. 5
4. Lower squeegee, push machine forward and
check that the blade has even contact the full
length of the squeegee (Figure 6). If blade is not
even, leveling is required (See LEVELING
SQUEEGEE).
FIG. 6
LEVELING SQUEEGEE
Leveling of squeegee assures even contact the length
of squeegee blade. Make sure floor is level when
making adjustments.
FOR SAFETY: Before leaving or servicing
machine, stop on level surface and turn off
machine.
1. Lower squeegee to floor.
2. Push machine forward to deflect squeegee blade
(Figure 6).
3. Turn the squeegee leveling knob counter--
clockwise to decrease deflection at squeegee
ends, or clockwise to increase (Figure 7).
FIG. 7
4. Push machine forward again to check blade
deflection, readjust squeegee leveling knob as
necessary.

OPERATION
10
Tennant 5280 (10--04)
ATTACHING BRUSH/PAD DRIVER
NOTE: Consult your authorized distributor for pad and
brush recommendations.
1. Cleaning pads must be placed on pad drivers
before attaching pad driver. Secure cleaning pad
to pad driver with center lock (Figure 8).
FIG. 8
2. Turn machine power off.
FOR SAFETY: Before leaving or servicing
machine, stop on level surface and turn off
machine.
3. Raise the scrub head with the scrub head lift pedal
(Figure 9).
FIG. 9
4. Open access cover on front of scrub head. Turn
drive plate until pin slot is visible (Figure 10).
FIG. 10
5. Place scrub brush under scrub head. Make sure
one of brush drive pins is facing front (Figure 11).
FIG. 11
6. Align brush drive pin with the drive pin slot on
drive plate. Lift scrub brush and turn brush
counter-clockwise to engage drive pins into drive
slots (Figure 12).
FIG. 12
7. Check the brush to make sure it is securely
mounted on the brush drive hub. Close the scrub
head access cover.
REMOVING BRUSH/PAD DRIVER
1. Turn machine power off.
FOR SAFETY: Before leaving or servicing
machine, stop on level surface and turn off
machine.
2. Raise the scrub head with the scrub head lift pedal
(Figure 13).
FIG. 13

OPERATION
Tennant 5280 (10--04)
11
3. Open access cover on scrub head and turn brush
until drive pin is visible (Figure 14).
FIG. 14
4. Press down on the brush lock pin and turn brush
clockwise. The brush will drop off drive plate
(Figure 15).
FIG. 15
ADJUSTING SCRUB HEAD SKIRT HEIGHT
1. Place machine on a level surface and turn off
machine.
2. Lower scrub head with pad/brush installed.
3. Check to see if skirt height is 1.5 mm (.062 in.) from
floor all away around scrub head (Figure 16).
1.5 mm
(.062 in)
FIG. 16
4. Adjust skirt height by sliding skirt up or down by
hand. Skirt band clamp should only be slightly
tightened to allow for easy hand adjustment
(Figure 17).
FIG. 17
5. If skirt band is too tight, slightly loosen clamp at rear
of scrub head (Figure 18).
FIG. 18
FILLING SOLUTION TANK
1. Push machine to filling site and turn off machine.
FOR SAFETY: Before leaving or servicing
machine, stop on level surface and turn off
machine.
2. Remove the fill--port cover at the front of the
machine and fill solution tank to the opening
screen with clean water, 60_C (140_F) maximum
(Figure 19).
FIG. 19

OPERATION
12
Tennant 5280 (10--04)
NOTE: The water must not be hotter than 60_C
(140_F) or tank damage may occur.
NOTE: If filling with a bucket be certain that bucket is
clean. This will prevent possible solution line clogs.
3. Add cleaning chemical. See proper dilution ratio
instructions on bottle. Solution tank capacity is
45L (12 gal).
FOR SAFETY: When using machine, follow mixing
and handling instructions on chemical containers.
ATTENTION: Use only recommended detergents.
Machine damage due to improper detergent usage
will void the manufacturer’s warranty. Contact
your Tennant Sales Representative for detergent
recommendations.
WARNING: Fire Or Explosion Hazard. Never
Use Flammable Liquids.
4. ES Mode Option: Open the recovery tank cover
and fill the recovery tank with no more than 23L
(6 gal) of water (Figure 20).
NOTE: When using the ES option, make sure to
activate the ES option ON/OFF switch.
FIG. 20
MACHINE OPERATION
FOR SAFETY: Do not operate machine, unless
operation manual is read and understood.
WARNING: Fire or Explosion Hazard. Never
Operate Machine In Or Near Flammable Liquids,
Vapors Or Combustible Dusts.
PRE--OPERATION CHECKS
1. Sweep floor and pick up any material which could
become wrapped around scrub brush.
2. Check battery discharge indicator. For accurate
reading, machine must be in operation.
3. Check that pads/brushes are installed
(See MACHINE SETUP).
4. Check squeegee for proper deflection
(See MACHINE SETUP). Check blade for wear,
rounded corners, nicks or cuts.
5. Check that scrub head skirt is approximately
1.5 mm (.062 in.) from the floor all the way around
scrub head.
SCRUBBING WITH MACHINE
1. Adjust control console to a comfortable operating
height. To adjust height, pull control console
trigger, move console up or down, then release
trigger (Figure 21).
FIG. 21
2. Push machine to area to be scrubbed. Make sure
scrub head and squeegee are raised off floor.

OPERATION
Tennant 5280 (10--04)
13
3. Turn on machine power switch, and key switch if
equipped (Figure 22).
FIG. 22
4. ES SCRUBBING: Press the right side of the ES
switch to activate the ES system. The switch will
light up (Figure 23).
FIG. 23
5. Lower squeegee to floor with squeegee lever. This
lever will also turn on vacuum system (Figure 24).
FIG. 24
6. Turn solution switch on. The solution will not flow
until control grips are rotated (Figure 25).
FIG. 25
7. Lower the scrub brush by stepping down on the
scrub head release pedal (Figure 26).
FIG. 26
8. Rotate control grips in either direction and push
machine forward to begin scrubbing. The scrub
brush will assist in propelling the machine forward
(Figure 27).
FIG. 27
WARNING: Fire Or Explosion Hazard. Do Not
Pick Up Flammable Materials Or Reactive Metals.

OPERATION
14
Tennant 5280 (10--04)
9. Adjust solution flow rate. Turn solution flow knob
counter--clockwise to increase flow or clockwise to
decrease (Figure 28).
FIG. 28
10. Turn brush pressure knob to adjust pressure for
cleaning application. The indicator below the knob
shows if brush pressure is increasing or
decreasing (Figure 29).
FIG. 29
11. Observe brush pressure gauge. The brush
pressure gauge should be operated in the GREEN
zone. Operating machine with gauge in the RED
zone will cause scrub brush circuit breaker to trip
(Figure 30).
FIG. 30
OPERATING ES (OPTION)
ES option extends scrubbing time by reusing
recovered water. The recovered water is filtered and
recycled back into the solution tank for reuse.
1. Pour up to 23L (6 gal) of clean water, 60°C
(140°F) maximum temperature, into recovery tank
when filling solution tank (Figure 31).
WARNING: Fire Or Explosion Hazard. Never
Use Flammable Liquids Or Operate Machine In Or
Near Flammable Liquids, Vapors Or Combustible
Dusts.
FIG. 31
2. Turn ES switch on when ready to begin scrubbing.
The ES indicator light will automatically turn on
when recovery tank reaches its recycling level
(Figure 32).
FIG. 32
NOTE: If ES indicator light remains on, drain tanks
and clean ES filter located in recovery tank.
3. Drain and flush recovery and solution tanks as
needed (See DRAINING TANKS).

OPERATION
Tennant 5280 (10--04)
15
WHILE OPERATING MACHINE
WARNING: Fire Or Explosion Hazard. Do Not
Pick Up Flammable Materials Or Reactive Metals.
1. Overlap each path by 50 mm (2 in.).
2. Keep machine moving to prevent damage to finish
or floor.
3. Avoid floor obstructions, such as grates, to
prevent pad damage.
FOR SAFETY: When using machine, go slow on
inclines and slippery surfaces.
4. Periodically observe recovery tank for excessive
foam. Pour a recommended foam control solution
into recovery tank if excessive foam appears.
ATTENTION: Do not allow foam to enter float
shut-off screen, vacuum motor damage will result;
not covered by warranty. Foam will not activate
float shut-off screen.
5. For heavily soiled areas, double scrubbing is
recommended. First scrub area with squeegee up,
let solution set for 15--20 minutes, then scrub area
a second time with squeegee down.
ATTENTION: Do not operate machine with pad
pressure meter in red zone, circuit breakers will
trip and floor damage may occur.
6. Change or turn pads over when worn.
7. If squeegee leaves streaks, raise and wipe blades
with a cloth. Pre-sweep area to prevent streaking.
8. Observe battery discharge indicator. When needle
drops to the red zone, stop scrubbing and
recharge batteries (Figure 33).
ATTENTION: Do not operate machine with battery
discharge indicator in this red zone, battery
damage will result.
FIG. 33
9. ES SCRUBBING: Drain tanks and clean ES filter if
ES indicator light remains on.
CIRCUIT BREAKERS
The machine is equipped with three resettable circuit
breakers. They are designed to stop current flow in the
event of a circuit overload. If a circuit breaker should
trip during operation, determine the cause, allow
breaker to cool and then manually reset the circuit
breaker button. Circuit breaker panel is located at rear
of machine (Figure 34).
-- 7 A Main Circuit Breaker
-- 17 A Vacuum Motor Circuit Breaker
-- 35 A Brush Motor Circuit Breaker
FIG. 34
OPERATING OFF-AISLE WAND (OPTION)
The off--aisle wand allows you to scrub/vacuum areas
that the machine is unable to reach.
1. Turn machine power off.
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, and turn off
machine.
2. Disconnect squeegee vacuum hose from
squeegee assembly (Figure 35).
FIG. 35

OPERATION
16
Tennant 5280 (10--04)
3. Connect wand’s vacuum hose using hose adapter
supplied with wand (Figure 36).
FIG. 36
4. If machine is equipped with Off--Aisle Wand Pump
option, connect solution hose to quick disconnect
coupler located behind left wheel (Figure 37).
FIG. 37
5. Attach vacuum hose and solution hose to wand
(Figure 38).
FIG. 38
6. Turn machine power and wand pump switch on
(Figure 39).
FIG. 39
7. Lower squeegee to turn on vacuum system
(Figure 40).
FIG. 40
8. Squeeze lever on wand and spray solution on
floor. Scrub floor with brush side of wand and
vacuum up solution with squeegee side of wand
(Figure 41).
WARNING: Fire Or Explosion Hazard. Do Not
Pick Up Flammable Materials Or Reactive Metals.
FIG. 41

OPERATION
Tennant 5280 (10--04)
17
9. Hard Floor Wand Option: If wand is hard to push,
or has poor pick up, turn black adjustment knob to
adjust roller wheel (Figure 42).
FIG. 42
10. When finished, turn off machine power and wand
pump switch, and raise squeegee to shut off
vacuum system. Disconnect hoses and reattach
squeegee hose.
DRAINING TANKS
The recovery tank must be drained and cleaned out
after every use.
The solution tank should be cleaned out periodically to
remove any corrosion. When using the ES option, the
solution tank must be drained and cleaned out after
every use.
Transport the machine to a draining site, turn the
machine off and follow the draining instructions below:
FOR SAFETY: Before leaving or servicing
machine, stop on level surface and turn off
machine.
DRAINING RECOVERY TANK
1. Remove recovery tank drain hose from hose hook
(Figure 43).
FIG. 43
2. Remove the drain hose cap while holding the hose
up, then slowly lower the drain hose to the floor
drain or sink (Figure 44).
FIG. 44
NOTE: If using a bucket to drain machine, do not use
same bucket for filling solution tank. This will prevent
possible solution line clogs.
3. Flush out inside of recovery tank with clean water
(Figure 45).
FIG. 45
4. Remove and rinse off the float shut-off screen
located in recovery tank (Figure 46).
FIG. 46

OPERATION
18
Tennant 5280 (10--04)
5. If equipped with ES option, remove ES filter from
recovery tank and clean (Figure 47).
FIG. 47
DRAINING SOLUTION TANK
1. Remove solution tank drain hose from hose clip
(Figure 48).
FIG. 48
2. Release retainer tab on hose plug and pull out
plug while holding hose up, then slowly lower the
drain hose to the floor drain (Figure 49).
FIG. 49
4. ES option: Hinge open recovery tank to access
solution tank. Lift solution tank cover and flush out
solution tank with clean water. Rinse filter at
bottom of solution tank (Figure 50).
FIG. 50
CHARGING BATTERIES
ATTENTION: To prolong the life of the batteries
and to provide optimum machine performance,
ONLY recharge the batteries after a total of 30
minutes of use or more. Do not leave batteries
discharged for lengthy periods.
The following charging instructions are intended for
battery chargers supplied with the machine. Only use
a battery charger with the following specifications to
prevent battery damage.
BATTERY CHARGER SPECIFICATIONS:
S CHARGER TYPE: FOR LEAD ACID BATTERIES
S OUTPUT VOLTAGE - 24 VOLTS
S OUTPUT CURRENT - 12 AMPS for 130 AH Batteries
S OUTPUT CURRENT - 20 AMPS for 215 AH Batteries
S AUTOMATIC SHUTOFF CIRCUIT
S FOR DEEP CYCLE BATTERY CHARGING
1. Transport the machine to a well ventilated area for
charging.
WARNING: Fire Or Explosion Hazard.
Batteries Emit Hydrogen Gas. Keep Sparks And
Open Flame Away. Keep Battery Compartment
Open When Charging.
2. Park the machine on a level surface and turn the
machine off.
3. Before charging the batteries, check the
electrolyte level in each battery cell.
FOR SAFETY: When servicing machine, wear
protective gloves and eye protection when
handling batteries or battery cables. Avoid contact
with battery acid.

OPERATION
Tennant 5280 (10--04)
19
The electrolyte level (A) should slightly cover the
battery plates (B). Add distilled water as needed.
DO NOT OVERFILL, the fluid may expand and
overflow while charging. Replace cell caps before
charging (Figure 51).
A
B
FIG. 51
4. Rest the recovery tank on the support stand to
promote ventilation during charging (Figure 52).
FIG. 52
5. Connect the charger’s AC power supply cord to a
properly grounded receptacle (Figure 53).
Grounded
3HoleOutlet
Ground Pin
FIG. 53
6. Connect the charger’s DC cord to the machine’s
battery receptacle at the rear of the machine
(Figure 54).
FIG. 54
7. The charger will automatically begin charging and
shut off when fully charged.
NOTE: The machine will not operate once the battery
charger is connected.
ATTENTION: Do not disconnect the charger’s DC
cord from the machine’s receptacle when the
charger is operating. Arcing may result. If the
charger must be interrupted during charging,
disconnect the AC power supply cord first.
WARNING: Fire Or Explosion Hazard.
Batteries Emit Hydrogen Gas. Keep Sparks And
Open Flame Away. Keep Battery Compartment
Open When Charging.
8. After charging, check the electrolyte level (A)
again. The level should be approximately 1 cm
from the bottom of the fill--port (B) (Figure 55).
Add distilled water if needed. DO NOT OVERFILL.
A
B
FIG. 55

OPERATION
20
Tennant 5280 (10--04)
BATTERY DISCHARGE INDICATOR
Battery discharge indicator shows charge level of
batteries. The needle should be far right of green zone
when batteries are fully charged. As batteries are
discharged, the needle will move to the left red zone.
Recharge batteries when needle reaches the red zone
(Figure 56).
FIG. 56
MACHINE MAINTENANCE
To keep the machine in good working condition, simply
follow the daily, monthly and quarterly maintenance
procedures.
FOR SAFETY: Electrical Hazard. Disconnect
Battery Cables Before Servicing Machine.
DAILY MAINTENANCE
1. Drain and clean out the recovery tank (Figure 57).
FIG. 57
2. Remove and clean the float shut--off screen
located in the recovery tank (Figure 58).
FIG. 58
3. If equipped with ES option, remove ES filter from
recovery tank and clean (Figure 59).
FIG. 59
4. If equipped with ES option, drain and rinse out the
solution tank with clean water.
5. Remove and clean pads or brushes. Never use
soiled pads when cleaning. Rotate pad or replace
when worn (Figure 60).
FIG. 60
6. Check scrub head skirt for wear. Replace if worn or
damaged. Make sure skirt height is 1.5 mm (.062 in)
from floor all away around scrub head with
pad/brush installed (Figure 61).