Tennant 6550D User manual

6550D
Operator Manual
330330
Rev. 06
*330330*

This manual is furnished with each new TENNANT Model 6550D. 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 -- 330330
Revision: 06
Published: 9--02
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.
Copyright E1998, 1999, 2000, 2001, 2002 TENNANT, Printed in U.S.A.

OPERATION
1
6550D 330330 (9--01)
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 14.....................
PARKING BRAKE LEVER 14............
HORN BUTTON 15.....................
MAIN BRUSH AND SIDE
BRUSH LEVER 15..................
HOPPER DOOR LEVER 16.............
HOPPER LIFT LEVER 17...............
MAIN BRUSH POSITION LEVER 18.....
MAIN BRUSH DOWN PRESSURE
KNOB 19...........................
TURN SIGNAL SWITCH (OPTION) 19....
HOPPER TEMPERATURE LIGHT --
THERMO SENTRYt20.............
ENGINE WATER TEMPERATURE
LIGHT 20...........................
ENGINE OIL PRESSURE LIGHT 21......
CHARGING SYSTEM LIGHT 21.........
HOPPER DOOR LIGHT 21..............
CLOGGED FILTER LIGHT 21...........
MAIN BRUSH SHUT DOWN LIGHT 22...
FUEL LEVEL GAUGE 22................
HOURMETER 22......................
HAZARD LIGHT SWITCH (OPTION) 23...
OPERATING LIGHTS SWITCH 23.......
VACUUM FAN SWITCH 23..............
ENGINE SPEED SWITCH 24............
FILTER SHAKER SWITCH 25...........
STEERING WHEEL 25.................
STEERING COLUMN TILT LEVER 25....
IGNITION SWITCH 26..................
SIDE BRUSH POSITION LEVER 27......
SIDE BRUSH DOWN
PRESSURE KNOB 27...............
CIRCUIT BREAKERS 28................
FUSE 28..............................
LATCHES 29..........................
HOPPER SUPPORT BAR 29............
OPERATOR SEAT 30...................
WINDSHIELD WIPER SWITCH
(OPTION) 31.......................
DOME LIGHT SWITCH (OPTION) 31.....
HEATER SWITCH (OPTION) 31.........
PRESSURIZER SWITCH (OPTION) 31...
AIR CONDITIONING SWITCH
(OPTION) 32.......................
HEATER KNOB (OPTION) 32...........
Page
AUXILIARY SIDE BRUSH IN-OUT
SWITCH (OPTION) 32...............
AUXILIARY SIDE BRUSH UP-DOWN
SWITCH (OPTION) 32...............
HOW THE MACHINE WORKS 33...........
PRE-OPERATION CHECKLIST 33..........
STARTING THE MACHINE 35..............
SWEEPING AND BRUSH INFORMATION 37.
SWEEPING 38...........................
STOP SWEEPING 40.....................
EMPTYING THE HOPPER 41..............
STOP THE MACHINE 44..................
POST-OPERATION CHECKLIST 45.........
ENGAGING HOPPER SUPPORT BAR 46...
DISENGAGING HOPPER SUPPORT BAR 47
OPERATION ON INCLINES 48.............
OPTIONS 49.............................
VACUUM WAND 49....................
BLOWER WAND 55....................
HEATER VALVE 56.....................
MACHINE TROUBLESHOOTING 57........
MAINTENANCE 58..........................
MAINTENANCE CHART 58................
LUBRICATION 60.........................
ENGINE 60............................
REAR WHEEL SUPPORT 61............
HOPPER BEARINGS 61................
FRONT WHEEL BEARINGS 61..........
HYDRAULICS 62.........................
HYDRAULIC FLUID RESERVOIR 62.....
HYDRAULIC FLUID 62.................
HYDRAULIC HOSES 63................
PROPELLING MOTOR 63...............
ENGINE 64..............................
COOLING SYSTEM 64.................
AIR FILTER INDICATOR 65.............
AIR FILTER 65.........................
FUEL FILTER 66.......................
FUEL PIPES 66........................
PRIMING FUEL SYSTEM 66............
BATTERY 67.............................
BELTS AND CHAINS 67...................
ENGINE FAN BELT 67..................
STATIC DRAG CHAIN 67...............
DEBRIS HOPPER 68......................
HOPPER DUST FILTER 68..............
TO REPLACE HOPPER
DUST FILTER 68.................
THERMO SENTRYt71................

OPERATION
6550D 330330 (9--01)
2
Page
BRUSHES 72.............................
MAIN BRUSH 72.......................
TO REPLACE MAIN BRUSH 73.......
TO CHECK AND ADJUST MAIN
BRUSH PATTERN 74.............
SIDE BRUSH 76.......................
TO REPLACE SIDE BRUSH 77.......
SIDE BRUSH GUARD 77...............
SKIRTS AND SEALS 78...................
HOPPER LIP SKIRTS 78................
HOPPER SIDE SKIRT 78...............
BRUSH DOOR SKIRTS 78..............
REAR SKIRTS 79......................
SIDE BRUSH DUST CONTROL
SKIRTS (OPTION) 79................
BRUSH DOOR SEALS 79...............
HOPPER SEALS 80....................
HOPPER INSPECTION DOOR SEAL 80..
HOPPER DOOR SEALS 80.............
HOPPER COVER SEAL 81..............
HOPPER DUST SEAL 81...............
HOPPER VACUUM FAN SEAL 81........
HOPPER FILTER SEALS 81.............
BRAKES AND TIRES 82...................
SERVICE BRAKES 82..................
PARKING BRAKE 82...................
TIRES 82.............................
REAR WHEEL 82......................
PUSHING, TOWING, AND TRANSPORTING
THE MACHINE 83......................
PUSHING OR TOWING THE MACHINE 83
TRANSPORTING THE MACHINE 83.....
MACHINE JACKING 86....................
STORING MACHINE 86...................
SPECIFICATIONS 87........................
GENERAL MACHINE
DIMENSIONS/CAPACITIES 87..........
GENERAL MACHINE PERFORMANCE 87...
POWER TYPE 88.........................
STEERING 88............................
HYDRAULIC SYSTEM 88..................
BRAKING SYSTEM 88....................
TIRES 88................................
MACHINE DIMENSIONS 89................
INDEX 90...................................

SAFETY PRECAUTIONS
3
6550D 330330 (9--02)
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.
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.
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.
-- Make sure back-up alarm sounds and
lights when reversing machine.
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
6550D 330330 (9--02)
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 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.
-- Use truck or trailer that will support
the weight of the machine.
-- Set parking brake after machine is
loaded.
-- Block machine tires.
-- Tie machine down to truck or trailer.

SAFETY PRECAUTIONS
5
6550D 330330 (5--98)
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.
07522
FOR SAFETY LABEL -- LOCATED
ON THE SIDE PANEL OF THE
OPERATOR COMPARTMENT.

OPERATION
6550D 330330 (5--98)
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.
07324
07750
08431

OPERATION
7
6550D 330330 (5--98)
-Check the radiator coolant level.
FOR SAFETY: When servicing machine,
avoid contact with hot engine coolant.
-Fill the 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.
07752
07753

OPERATION
6550D 330330 (5--98)
8
MACHINE COMPONENTS
A
B
C
D
E
F
G
H
I
07522
A. Operator Seat
B. Steering Wheel
C. Engine Cover
D. Engine Side Door
E. Main Brush Access Door
F. Hopper Cover
G. Hopper Access Cover
H. Side Brush
I. Instrument Panel

OPERATION
9
6550D 330330 (5--98)
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 Engine Water Temperature
Hopper Door Close Hopper Temperature -- Thermo Sentryt
Hopper Down Main Brush Shut Down
Hopper Up Filter Clogged
Horn Hopper Door Closed
Main Brush Down Pressure Light Fuel
Main Brush Down Pressure Heavy Hourmeter
Main Brush Float Hazard Light
Main Brush Down Filter Shaker
Main Brush Up Operating Lights
Side Brush Down Pressure Light Fan
Side Brush Down Pressure Heavy Engine Speed

OPERATION
6550D 330330 (5--98)
10
Side Brush Down Circuit Breaker 9
Side Brush Up Circuit Breaker 10
Circuit Breaker 1 Windshield Wiper Slow
Circuit Breaker 2 Windshield Wiper Fast
Circuit Breaker 3 Dome Light
Circuit Breaker 4 Heater
Circuit Breaker 5 Cab Pressurizer Slow
Circuit Breaker 6 Cab Pressurizer Fast
Circuit Breaker 7 Side Brush In
Circuit Breaker 8 Side Brush Out

OPERATION
11
6550D 330330 (5--98)
CONTROLS AND INSTRUMENTS
A
B
C
D
E
F
G
H
I
JK
L
M
N
O
P
QRST
U
V
W
X
Y
Z
AA
BB
CC
DD
07789
A. Directional Pedal
B. Brake Pedal
C. Parking Brake Lever
D. Horn Button
E. Main Brush And Side Brush Lever
F. Hopper Door Lever
G. Hopper Lift Lever
H. Main Brush Position Lever
I. Main Brush Down Pressure Knob
J. Turn Signal Switch (Option)
K. Hopper Temperature Light --
Thermo Sentryt
L. Engine Water Temperature Light
M. Engine Oil Pressure Light
N. Charging System Light
O. Hopper Door Light
P. Clogged Filter Light
Q. Main Brush Shut Down Light
R. Fuel Level Gauge
S. Hourmeter
T. Hazard Light Switch (Option)
U. Operating Light Switch
V. Vacuum Fan Switch
W. Engine Speed Switch
X. Filter Shaker Switch
Y. Steering Wheel
Z. Side Brush Position Lever
AA. Ignition Switch
BB.Side Brush Down Pressure Knob
CC.Steering Column Tilt Lever
DD.Circuit Breakers

OPERATION
6550D 330330 (5--98)
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.
FOR SAFETY: Before starting machine,
make sure back-up alarm sounds and
lights when reversing machine.
Neutral: Take your foot off the directional pedal
and it will return to the neutral position.
07790
07791
07792

OPERATION
13
6550D 330330 (5--98)
The toe angle of the 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.
08031

OPERATION
6550D 330330 (5--98)
14
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.
07754
07794
07793

OPERATION
15
6550D 330330 (5--98)
HORN BUTTON
The horn button operates the horn.
Sound: Press the button.
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.
08032
07773
07774
07775

OPERATION
6550D 330330 (5--98)
16
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.
07776
07777
07778

OPERATION
17
6550D 330330 (5--98)
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.
07779
07780
07781

OPERATION
6550D 330330 (5--98)
18
MAIN BRUSH POSITION LEVER
The main brush position lever lowers and raises
the main brush. The main brush can be lowered
into two sweeping positions; down and float.
Down is used for general sweeping. Float is used
when sweeping extremely uneven surfaces.
Down: Pull the main brush position lever back
and to the left into the Down position.
Float: Pull the main brush position lever back and
to the left and over into the Float position.
Up: Pull the main brush position lever all the way
back and to the right into the Up position.
07782
07783
07784