Tennant 6600 User manual

6600
Operator Manual
330950
Rev. 02
*330950*

This manual is furnished with each new TENNANT Model 6600. It provides necessary operating and
preventive maintenance instructions. Read this manual completely and understand the machine before
operating or servicing it.
This machine will provide excellent service. However, the best results will be obtained at minimum
costs if:
DThe machine is operated with reasonable care.
DThe machine is maintained regularly -- per the maintenance instructions provided.
DThe machine is maintained with TENNANT supplied or approved parts.
Manual Number -- 330950
Revision: 02
Published: 3--05
CALIFORNIA PROPOSITION 65 WARNING:
Engine exhaust from this product contains chemicals known to the State of
California to cause cancer, birth defects, or other reproductive harm.
Thermo Sentrytis a United States registered trademark of the Tennant Company.
Copyright E2003 -- 2005 TENNANT, Printed in U.S.A.

CONTENTS
1
6600 330950 (3--05)
CONTENTS
Page
SAFETY PRECAUTIONS 3.................
OPERATION 6............................
OPERATOR RESPONSIBILITY 6.........
MACHINE COMPONENTS 8.............
CONTROL PANEL SYMBOLS 9..........
CONTROLS AND INSTRUMENTS 11......
OPERATION OF CONTROLS 12..........
DIRECTIONAL PEDAL 12..............
BRAKE PEDAL 13....................
PARKING BRAKE LEVER 13...........
MAIN BRUSH AND SIDE
BRUSH LEVER 14.................
HOPPER DOOR LEVER 15............
HOPPER LIFT LEVER 16..............
MAIN BRUSH POSITION LEVER 17....
HORN BUTTON 17....................
MAIN BRUSH ADJUSTMENT KNOB 18..
TURN SIGNAL SWITCH (OPTION) 19...
HOPPER TEMPERATURE LIGHT --
THERMO SENTRY 20..............
CHARGING SYSTEM LIGHT 20........
HOPPER DOOR LIGHT 20.............
ENGINE OIL PRESSURE LIGHT 21.....
LPG FUEL LIGHT 21..................
CLOGGED FILTER LIGHT 22..........
CHECK ENGINE LIGHT 22.............
HOURMETER 23.....................
FUEL LEVEL GAUGE 23...............
OPERATING/HAZARD LIGHTS
SWITCH 24........................
VACUUM FAN/FILTER SHAKER
SWITCH 24........................
ENGINE SPEED SWITCH 25...........
STEERING WHEEL 26................
STEERING COLUMN TILT LEVER
(OPTION) 26......................
IGNITION SWITCH 27.................
SIDE BRUSH POSITION LEVER 28.....
SIDE BRUSH DOWN PRESSURE
KNOB 29..........................
FUSES 30............................
CIRCUIT BREAKERS (OPTION) 31.....
LATCHES 32.........................
HOPPER SUPPORT BAR 33...........
OPERATOR SEAT 33..................
DELUXE SUSPENSION SEAT
(OPTION) 34......................
HEATER KNOB (OPTION) 35..........
AIR CONDITIONING SWITCH
(OPTION) 35......................
WINDSHIELD WIPER SWITCH
(OPTION) 35......................
DOME LIGHT SWITCH (OPTION) 36....
PRESSURIZER SWITCH (OPTION) 36
..
Page
HOW THE MACHINE WORKS 37..........
PRE-OPERATION CHECKLIST 37.........
CHANGING AN LPG FUEL TANK 38.......
STARTING THE MACHINE 40.............
SWEEPING AND BRUSH INFORMATION 42
SWEEPING 43..........................
STOP SWEEPING 45....................
EMPTYING THE HOPPER 47.............
STOP THE MACHINE 50.................
POST-OPERATION CHECKLIST 52........
ENGAGING HOPPER SUPPORT BAR 53..
DISENGAGING HOPPER SUPPORT BAR 55
OPERATION ON INCLINES 56............
OPTIONS 57............................
VACUUM WAND 57...................
BLOWER WAND 62...................
HEATER VALVE 63....................
MACHINE TROUBLESHOOTING 64.......
MAINTENANCE 66.........................
MAINTENANCE CHART 66...............
LUBRICATION 68........................
ENGINE 68...........................
REAR WHEEL SUPPORT 68...........
HOPPER BEARINGS 69...............
FRONT WHEEL BEARINGS 69.........
HYDRAULICS 70........................
HYDRAULIC FLUID RESERVOIR 70....
HYDRAULIC FLUID 70................
HYDRAULIC HOSES 71...............
PROPELLING MOTOR 71..............
ENGINE 72.............................
COOLING SYSTEM 72................
AIR FILTER 73........................
TO REPLACE AIR FILTER 74........
FUEL FILTER (GASOLINE) 75..........
FUEL FILTER (LPG) 75................
ELECTRONIC FUEL INJECTION (EFI) 76
SPARK PLUGS 76....................
VALVE TAPPET CLEARANCE 76.......
CRANKCASE VENTILATION SYSTEM 76
TIMING BELT 76......................
BATTERY 77.........................
BELTS AND CHAINS 77..................
ENGINE FAN BELT 77.................
STATIC DRAG CHAIN 77..............
DEBRIS HOPPER 78.....................
HOPPER DUST FILTER 78.............
TO REPLACE HOPPER
DUST FILTER 79................
THERMO SENTRY 81.................
BRUSHES 82............................
MAIN BRUSH 82......................
TO REPLACE MAIN BRUSH 83......
TO CHECK AND ADJUST MAIN
BRUSH PATTERN 84............

CONTENTS
6600 330950 (3--05)
2
Page
SIDE BRUSH 86......................
TO REPLACE SIDE BRUSH 87......
SIDE BRUSH GUARD 87...........
SKIRTS AND SEALS 88..................
HOPPER LIP SKIRTS 88...............
HOPPER SIDE SKIRT 88..............
BRUSH DOOR SKIRTS 88.............
REAR SKIRTS 89.....................
SIDE BRUSH DUST CONTROL
SKIRTS (OPTION) 89...............
BRUSH DOOR SEALS 89..............
HOPPER SEALS 90...................
HOPPER DOOR SEALS 90............
HOPPER FILTER SEALS 91............
HOPPER INSPECTION DOOR SEAL 91.
VACUUM WAND DOOR
SEALS (OPTION) 91...............
BRAKES AND TIRES 92..................
SERVICE BRAKES 92.................
PARKING BRAKE 92..................
TIRES 92............................
REAR WHEEL 92.....................
PUSHING, TOWING, AND
TRANSPORTING THE MACHINE 93....
PUSHING OR TOWING
THE MACHINE 93..................
TRANSPORTING THE MACHINE 93....
MACHINE JACKING 96...................
STORING MACHINE 96..................
SPECIFICATIONS 97.......................
GENERAL MACHINE
DIMENSIONS/CAPACITIES 97.........
GENERAL MACHINE PERFORMANCE 97..
TIRES 97...............................
POWER TYPE 98........................
STEERING 98............................
HYDRAULIC SYSTEM 98.................
BRAKING SYSTEM 98...................
MACHINE DIMENSIONS 99...............
INDEX 101.................................

SAFETY PRECAUTIONS
3
6600 330950 (3--05)
SAFETY PRECAUTIONS
The following precautions 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.
CAUTION: To warn of unsafe practices
that could result in minor or moderate
personal injury.
FOR SAFETY: To identify actions which
must be followed for safe operation of
equipment.
The machine is suited to sweep disposable
debris. Do not use the machine other than
described in this Operator Manual. The machine
is not designed for use on public roads.
The following information signals potentially
dangerous conditions to the operator or
equipment:
WARNING: Engine emits toxic gases.
Severe respiratory damage or
asphyxiation can result. Provide
adequate ventilation. Consult with your
regulatory authorities for exposure
limits. Keep engine properly tuned.
WARNING: Raised hopper may fall.
Engage hopper support bar.
WARNING: Lift arm pinch point. Stay
clear of hopper lift arms.
WARNING: Moving belt and fan. Keep
away.
WARNING: Accident may occur. Do not
operate vacuum or blower wand while
driving.
WARNING: Hot surface. keep away
CAUTION: LPG engine will run for a few
seconds after key is turned off. Apply
parking brake before leaving machine.
FOR SAFETY:
1. Do not operate machine:
-- Unless trained and authorized.
-- Unless operator manual is read and
understood.
-- If it is not in proper operating
condition.
-- In flammable or explosive areas unless
designed for use in those areas.
-- In areas with possible falling objects
unless equipped with overhead guard.
2. Before starting machine:
-- Check for fuel, oil, and liquid leaks.
-- Keep sparks and open flame away
from refueling area.
-- Make sure all safety devices are in
place and operate properly.
-- Check brakes and steering for proper
operation.
3. When starting machine:
-- Keep foot on brake and directional
pedal in neutral.
4. When using machine:
-- Use brakes to stop machine.
-- Go slow on inclines and slippery
surfaces.
-- Use care when reversing machine.
-- Move machine with care when hopper
is raised.
-- Make sure adequate clearance is
available before raising hopper.
-- Do not carry passengers on machine.
-- Always follow safety and traffic rules.
-- Report machine damage or faulty
operation immediately.
5. Before leaving or servicing machine:
-- Stop on level surface.
-- Set parking brake.
-- Turn off machine and remove key.

SAFETY PRECAUTIONS
6600 330950 (3--05)
4
6. When servicing machine:
-- Avoid moving parts. Do not wear loose
jackets, shirts, or sleeves.
-- Block machine tires before jacking
machine 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.
-- Wear eye and ear protection when
using pressurized air or water.
-- Disconnect battery connections before
working on machine.
-- Avoid contact with battery acid.
-- Avoid contact with hot engine coolant.
-- Allow engine to cool.
-- Keep flames and sparks away from
fuel system service area. Keep area
well ventilated.
-- Use cardboard to locate leaking
hydraulic fluid under pressure.
-- Use TENNANT supplied or approved
replacement parts.
7. When loading/unloading machine
onto/off truck or trailer:
-- Turn off machine.
-- Use truck or trailer that will support
the weight of the machine.
-- Use winch. Do not drive the machine
onto/off the truck or trailer unless the
load height is 380 mm (15 in) or less
from the ground.
-- Set parking brake after machine is
loaded.
-- Block machine tires.
-- Tie machine down to truck or trailer.

SAFETY PRECAUTIONS
5
6600 330950 (3--05)
The following safety labels are mounted on the
machine in the locations indicated. If these or any
label becomes damaged or illegible, install a new
label in its place.
HOPPER LIFT ARMS LABEL --
LOCATED ON BOTH HOPPER
LIFT ARMS.
HOPPER SUPPORT BAR LABEL -- LOCATED
ON THE HOPPER SUPPORT BAR AND ON
BOTH HOPPER LIFT ARMS.
ENGINE FAN AND BELT LABEL --
LOCATED ON THE RADIATOR SHROUD.
EMISSIONS LABEL -- LOCATED ON THE SIDE
PANEL OF THE OPERATOR COMPARTMENT.
354000
FOR SAFETY LABEL -- LOCATED ON
THE SIDE PANEL OF THE OPERATOR
COMPARTMENT.
LPG ENGINE WILL RUN LABEL -- LOCATED
ON THE SIDE OF THE INSTRUMENT PANEL.
BURN HAZARD LABEL
-- LOCATED ON THE
REAR OF THE FRAME.

OPERATION
6600 330950 (4--03)
6
OPERATION
OPERATOR RESPONSIBILITY
-The operator’s responsibility is to take care
of the daily maintenance and checkups of
the machine to keep it in good working
condition. The operator must inform the
service mechanic or supervisor when the
required maintenance intervals occur as
stated in the MAINTENANCE section of this
manual.
-Read this manual carefully before operating
this machine.
FOR SAFETY: Do not operate machine,
unless operation manual is read and
understood.
-Check the machine for shipping damage.
Check to make sure machine is complete
per shipping instructions.
-Check the hydraulic fluid level in the
hydraulic reservoir.
-Check the engine oil level.
-Check the radiator coolant level.
FOR SAFETY: When servicing machine,
avoid contact with hot engine coolant.
-Gasoline powered machines: Fill the fuel
tank.
FOR SAFETY: When servicing machine,
keep flames and sparks away from fuel
system service area. Keep area well
ventilated.
07324

OPERATION
7
6600 330950 (4--03)
-LPG powered machines: Install the LPG fuel
tank on the machine. See CHANGING AN
LPG FUEL TANK.
FOR SAFETY: When servicing machine,
keep flames and sparks away from fuel
system service area. Keep area well
ventilated.
-After the first 50 hours of operation, follow
the recommended procedures stated in the
MAINTENANCE CHART.
-Keep your machine regularly maintained by
following the maintenance information in this
manual. We recommend taking advantage
of a regularly scheduled service contract
from your TENNANT representative.
-Order parts and supplies directly from your
authorized TENNANT representative. Use
the parts manual provided when ordering
parts.

OPERATION
6600 330950 (4--03)
8
MACHINE COMPONENTS
AB
C
D
E
F
H
I
G
354000
A. Steering Wheel
B. Operator Seat
C. Engine Cover
D. Engine Side Door
E. Main Brush Access Door
F. Hopper Access Cover
G. Side Brush
H. Hopper Cover
I. Instrument Panel

OPERATION
9
6600 330950 (4--03)
CONTROL PANEL SYMBOLS
These symbols identify controls and displays on
the machine:
Main and Side Brushes On Charging System
Main Brush On Engine Oil Pressure
Hopper Door Open Check Engine
Hopper Door Close Hopper Temperature --Thermo Sentryt
Hopper Down Filter Clogged
Hopper Up Hopper Door Closed
Horn LPG Fuel
Main Brush Down Pressure Light Hourmeter
Main Brush Down Pressure Heavy Hazard Light
Main Brush Float Filter Shaker
Main Brush Down Operating Lights
Main Brush Up Fan

OPERATION
6600 330950 (4--03)
10
Side Brush Down Pressure Light Side Brush Down
Side Brush Down Pressure Heavy Side Brush Up
Windshield Wiper Slow
Windshield Wiper Fast
Dome Light
Heater
Cab Pressurizer Slow
Cab Pressurizer Fast
Engine speed (idle)
Engine speed (slow)
Engine speed (fast)

OPERATION
11
6600 330950 (2--04)
CONTROLS AND INSTRUMENTS
I
W
ABC
D
E
F
G
H
J
K
QR
S
T
U
Y
X
L
MNO
P
V
Z
A. Hourmeter
B. Operating/Hazard Lights Switch
C. Vacuum Fan/Filter Shaker Switch
D. Engine Speed Switch
E. Side Brush Position Lever
F. I g n i t i o n S w i t c h
G. Side Brush Down Pressure Knob
H. Steering Wheel
I. Directional Pedal
J. Brake Pedal
K. Parking Brake Lever
L. Horn Button
M. Main Brush And Side Brush Lever
N. Hopper Door Lever
O. Hopper Lift Lever
P. Main Brush Position Lever
Q. Main Brush Adjustment Knob
R. Clogged Filter Light (Option)
S. Hopper Door Light
T. Engine Oil Pressure Light (For Machines Serial Number 024999 And Below)
U. Hopper Temperature Light -- Thermo Sentryt
V. Charging System Light
W. LP Fuel Light
X. Check Engine Light
Y. Fuel Gauge (Gasoline Machines Only)
Z. Fuses

OPERATION
6600 330950 (4--03)
12
OPERATION OF CONTROLS
DIRECTIONAL PEDAL
The directional pedal controls direction of travel
and the propelling speed of the machine. You
change the speed of the machine with the
pressure of your foot; the harder you press the
faster the machine travels.
Forward: Press the top of the directional pedal
with the toe of your foot.
Reverse: Press the bottom of the directional
pedal with the heel of your foot.
Neutral: Take your foot off the directional pedal
and it will return to the neutral position.

OPERATION
13
6600 330950 (4--03)
The toe angle of the optional directional pedal
is adjustable. Remove the clevis pin, move the top
of the pedal to the angle needed, and put the
clevis pin through the adjustment holes.
BRAKE PEDAL
The brake pedal stops the machine.
Stop: Take your foot off the directional pedal and
let it return to the neutral position. Step on the
brake pedal.
PARKING BRAKE LEVER
The parking brake lever sets and releases the
front wheel brakes.
Set: Pull the parking brake lever up.
FOR SAFETY: Before leaving or
servicing machine; stop on level
surface, set parking brake, turn off
machine and remove key.
Release: Push the parking brake lever down.

OPERATION
6600 330950 (4--03)
14
MAIN BRUSH AND SIDE BRUSH LEVER
The main brush and side brush lever controls the
main brush and side brush rotation.
Main Brush and Side Brush On: Push the main
brush and side brush lever into the On position.
Main Brush and Side Brush Off: Pull the main
brush and side brush lever into the middle
position.
Main Brush On: Pull the main brush and side
brush lever into the On position.
NOTE: Always raise the main brush when the
machine is not being operated for some time. This
prevents the main brush from getting a flat spot.

OPERATION
15
6600 330950 (4--03)
HOPPER DOOR LEVER
The hopper door lever opens and closes the
hopper door and dust door. Open the hopper door
when sweeping. Close the hopper door when
emptying the hopper to control debris and dust.
Open: Push the hopper door lever into the Open
position and leave it there.
Hold: Release the hopper door lever into the
middle position.
Close: Pull and hold the hopper door lever into
the Close position.
NOTE: The hopper door will not close if the main
brush, side brush, and vacuum fan are operating.

OPERATION
6600 330950 (4--03)
16
HOPPER LIFT LEVER
The hopper lift lever raises and lowers the hopper.
Up: Pull and hold the hopper lift lever into the Up
position.
WARNING: Raised hopper may fall.
Engage hopper support bar.
NOTE: The hopper will not raise if the main brush,
side brush, and vacuum fan are operating.
Hold: Release the hopper lift lever up and into the
middle position.
Down: Push and hold the hopper lift lever into the
Down position.

OPERATION
17
6600 330950 (4--03)
MAIN BRUSH POSITION LEVER
The main brush position lever lowers and raises
the main brush. The main brush can be lowered
into one sweeping position, which is set by the
main brush adjustment knob.
Down: Pull the main brush position lever back
and to the left. Release the lever forward into the
down position.
Up: Pull the main brush position lever all the way
back and to the right. Release the lever forward
into the Up position.
HORN BUTTON
The horn button operates the horn.
Sound: Press the button.

OPERATION
6600 330950 (4--03)
18
MAIN BRUSH ADJUSTMENT KNOB
The main brush adjustment knob controls the
amount of contact the main brush has with the
sweeping surface.
Note the length of the main brush bristles with the
color band on the brush idler plate before moving
the main brush adjustment knob.
Align the pointer from the plate located under the
knob, to match the same color band as the brush
idler plate.
Loosen adjustment knob: Turn the adjustment
plate knob counter--clockwise until the plate can
slide along the adjustment panel.
Secure adjustment knob: Turn the adjustment
plate knob clockwise until the knob is hand tight
and the plate cannot slide in the adjustment panel.