Tennant Litter Hawk User manual

Litter Hawkt
*330470*
www.tennantco.com
Operator Manual
330470
Rev. 07 (12-2005)

This manual is furnished with each new model. It provides
necessary operation and maintenance instructions.
Read this manual completely and understand the ma-
chine before operating or servicing it.
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 ma-
chine maintenance instructions provided.
SThe machine is maintained with manufacturer sup-
plied 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.
MACHINE DATA
Please fill out at time of installation for future reference.
Model No.- Litter Hawk
Serial No.-
Machine Options --
Sales Rep. --
Sales Rep. phone no. --
Customer Number --
Installation Date --
Tennant Company
PO Box 1452
Minneapolis, MN 55440
Phone: [phone] or (763) 523--2850
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.
Litter Hawk and Thermo Sentry are United States trademarks of Tennant Company.
Specifications and parts are subject to change without notice.
Copyright E1998--2002, 2005 TENNANT, Printed in U.S.A.

CONTENTS
1
Litter Hawkt330470 (2--05)
CONTENTS
Page
SAFETY PRECAUTIONS 2...................
OPERATION 4..............................
OPERATOR RESPONSIBILITY 4...........
MACHINE COMPONENTS 5...............
SYMBOL DEFINITIONS 6..................
CONTROLS AND INSTRUMENTS 7........
OPERATION OF CONTROLS 9............
DIRECTIONAL LEVER 9................
IGNITION SWITCH 10..................
STEERING HANDLE 10................
FUEL LEVEL GAUGE 10................
HOURMETER 11......................
HORN BUTTON 11.....................
POWER KILL SWITCH 11...............
STEERING ASSEMBLY KNOB 12........
OPERATING/HAZARD LIGHTS
SWITCH (000000--001579) 12......
OPERATING LIGHTS (001580-- ) 12.
VOICE BOX SWITCH (OPTION) 13......
VACUUM FAN/SIDE BRUSHES
SWITCH 13.........................
WATER PUMP SWITCH 14.............
TURN SIGNAL SWITCH 15.............
ENGINE TEMPERATURE LIGHT 15......
ENGINE OIL PRESSURE LIGHT 15......
CHARGING SYSTEM LIGHT 16.........
THERMO SENTRY LIGHT 16............
HAZARD LIGHT SWITCH (001580-- ) 16
BRAKE PEDAL 17.....................
PARKING BRAKE PEDAL 17............
FUSES 18.............................
CIRCUIT BREAKERS 18................
VACUUM FAN DAMPER HANDLE 19.....
THROTTLE LEVER 19..................
VACUUM HEAD CONTROL LEVER 19...
OPERATOR SEAT 20...................
HOPPER 20...........................
HOPPER SECURING BAR 20...........
HOW THE MACHINE WORKS 21...........
PRE-OPERATION CHECKLIST 21..........
POSITIONING STEERING ASSEMBLY 25...
STARTING THE MACHINE 27..............
OPERATION ON INCLINES 30.............
CLEANING AND BRUSH INFORMATION 31.
FILLING WATER TANK 33.................
CLEANING 34............................
VACUUM WAND OPERATION 36...........
STOP CLEANING 39......................
STOPPING THE MACHINE 40.............
EMPTYING THE DEBRIS HOPPER 42......
REMOVING HOPPER DUST FILTERS 47....
POST-OPERATION CHECKLIST 50
.........
OPTIONS 51.............................
VOICE BOX 51...........................
MACHINE TROUBLESHOOTING 52........
MAINTENANCE 54..........................
MAINTENANCE CHART 54................
Page
LUBRICATION 56.........................
ENGINE 56............................
REAR WHEEL SUPPORT BEARINGS 56.
HYDRAULICS 57.........................
HYDRAULIC FLUID RESERVOIR 57.....
HYDRAULIC FLUID 58.................
HYDRAULIC HOSES 58................
ENGINE 59..............................
COOLING SYSTEM 59.................
AIR FILTER 60.........................
FUEL FILTER 60.......................
FUEL LINES 61........................
BATTERY 61..........................
BELTS AND CHAINS 62...................
ENGINE BELT 62......................
DEBRIS HOPPER 63......................
HOPPER DUST FILTER
INFORMATION 63...................
THERMO SENTRY 64..................
DIFFUSER SCREENS 64...............
BRUSHES 65.............................
SIDE BRUSHES 65....................
REPLACING SIDE BRUSH 66........
DUST CONTROL SYSTEM 67..............
SPRAY NOZZLES 67...................
CLEANING AND ADJUSTING
SPRAY NOZZLES 67.............
WATER TANK 69.......................
DRAINING THE WATER TANK 69.....
SKIRTS AND SEALS 71...................
HOPPER COVER SEAL 71..............
HOPPER SEAL 71.....................
FILTER SEALS 71......................
FILTER HOUSING COVER SEALS 72....
VACUUM HEAD SKIRT 72.................
VACUUM SYSTEM 73..................
VACUUM FAN SCREEN 73.............
VACUUM HOSES 73...................
VACUUM WAND DAMPER 73...........
BRAKES AND TIRES 74...................
BRAKES 74...........................
TIRES 75.............................
PUSHING, TOWING, AND
TRANSPORTING THE MACHINE 76.....
PUSHING OR TOWING THE
MACHINE 76.......................
TRANSPORTING THE MACHINE 76
........
MACHINE JACKING 79....................
STORING MACHINE 79...................
SPECIFICATIONS 80........................
GENERAL MACHINE PERFORMANCE 80...
POWER TYPE 81.........................
STEERING 81............................
HYDRAULIC SYSTEM 81..................
BRAKING SYSTEM 81....................
TIRES 81................................
MACHINE DIMENSIONS 82................

SAFETY PRECAUTIONS
Litter Hawkt330470 (3--02)
2
SAFETY PRECAUTIONS
The following symbols are used throughout this
manual as indicated in their description:
WARNING: To warn of hazards or
unsafe practices that could result in
severe personal injury or death.
FOR SAFETY: To identify actions that
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 following information signals potentially
dangerous conditions to the operator or
equipment:
WARNING: Machine emits toxic gases.
Serious injury or death can result.
Provide adequate ventilation.
WARNING: Moving fan blades. Keep
away.
WARNING: Sharp objects in debris
canister. Wear gloves.
WARNING: Heavy hopper. Do not
remove without help.
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.
-- In areas with possible falling objects
unless equipped with overhead guard.
2. Before starting machine:
-- 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
lever in neutral.
4. When using machine:
-- Use brakes to stop machine.
-- Go slowly on inclines and slippery
surfaces.
-- Use care when reversing machine.
-- Do not carry riders 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.
6. When servicing machine:
-- Avoid moving parts. Do not wear loose
jackets, shirts, or sleeves when
working on machine.
-- Block machine tires before jacking up
machine.
-- Jack up machine 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 if using
pressurized air or water.
-- Disconnect battery connections before
working on machine.
-- Avoid contact with battery acid.
-- Use cardboard to locate leaking
hydraulic fluid under pressure.
-- Use Tennant supplied or equivalent
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
3
Litter Hawkt330470 (12--99)
The following safety labels are mounted on the
machine in the locations indicated. If these or any
labels become damaged or illegible, install a new
label in its place.
FOR SAFETY LABEL -- Located on the top of
the steering assembly.
EMISSIONS LABEL -- Located on
the side of the steering assembly.
SHARP OBJECTS HAZARD LABEL -- Located
on top of the fan housing.
FAN WARNING LABEL --
Located on both sides of the
radiator.
HEAVY HOPPER LABEL -- Located
on top of the fan housing.
353030

OPERATION
Litter Hawkt330470 (6--99)
4
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
maintenance intervals are required as stated
in the MAINTENANCE section of this
manual.
-Read this manual carefully before operating
the machine. View the operation video
supplied with the machine.
FOR SAFETY: Do not operate machine,
unless operation manual is read and
understood.
-Check the machine for shipping damage.
Check to make sure the machine is
complete per shipping instructions.
-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.
-After operation, follow the recommended
daily and hourly procedures stated in the
MAINTENANCE CHART.
07324

OPERATION
5
Litter Hawkt330470 (6--99)
MACHINE COMPONENTS
B
D
A
G
E
C
F
H
I
J
A. Operator seat
B. Instrument panel
C. Steering assembly
D. Hopper cover
E. Hopper dust filters
F. Side brushes
G. Vacuum wand
H. Fuel tank
I. Engine cover
J. Water tank

OPERATION
Litter Hawkt330470 (12--99)
6
SYMBOL DEFINITIONS
These symbols identify controls, displays, and
features on the machine:
On Engine Oil Pressure
Off Engine Water Temperature
Glow Plug (Preheat) Thermo Sentryt
Voltmeter Operating lights
Start Hazard light
Horn Turn signal light (Option)
Vacuum Fan and Side brushes Voice box (option)
Circuit breaker #1 Idle Engine Speed
Circuit breaker #2 Medium Vacuum Fan / Engine Speed
Circuit breaker #3 Fast Vacuum Fan / Engine Speed
Circuit breaker #4 Spray nozzles
Circuit breaker #5 Vacuum head lift
Circuit breaker #6 Vacuum head lowered

OPERATION
7
Litter Hawkt330470 (2--05)
CONTROLS AND INSTRUMENTS
Q
S
P
T
F
G
A
D
E
H
JI
K
N
C
B
U
M
V
O
WY
X
L
R
A. Steering assembly knob
B. Directional lever (reverse)
C. Directional lever (forward)
D. Steering handle
E. Ignition switch
F. Fuel gauge
G. Hourmeter
H. Glow plug light
I. Vacuum fan damper handle
J. Power kill switch
K. Horn button
L. Operating/hazard lights switch (000000--001579)
L. Operating switch (001580-- )
M. Brake pedal
N. Parking brake pedal
O. Circuit breakers
P. Voice box switch (option)
Q. Vacuum fan/side brushes switch
R. Turn signal switch (000000--001579)
S. Water pump switch
T. Engine temperature light
U. Engine oil pressure light
V. Charging system light
W. Thermo sentry light
X. Hazard Light (000000-- )
Y. Turn signal switch (001580-- )

OPERATION
Litter Hawkt330470 (6--99)
8
A
B
A. Throttle lever
B. Vacuum head control lever

OPERATION
9
Litter Hawkt330470 (12--99)
OPERATION OF CONTROLS
DIRECTIONAL LEVER
The directional lever controls the direction of
travel of the machine. Change the direction of the
machine with the pressure of your hands on the
directional lever. The machine is very responsive
to the directional lever. Squeeze and release the
directional lever gently.
Use the brake pedal to stop the machine.
Forward: Gently squeeze the directional lever with
your fingers, pulling the lever back towards the
steering handle. Keep your hands on the steering
handle.
Reverse: Push the directional lever away from the
steering handle by pressing the lower lever tabs
with the operator’s thumbs. Keep your hands on
the steering handle.
Neutral: Gently remove your hands from the
directional lever and it will return to the Neutral
position.

OPERATION
Litter Hawkt330470 (12--99)
10
IGNITION SWITCH
The ignition switch controls machine power with a
key.
FOR SAFETY: When starting machine,
keep foot on brake and directional lever
in neutral.
Preheat: Turn and hold the key counterclockwise.
The glow plug light will come on. When the glow
plug light goes out, usually in 5 to 30 seconds
depending on weather conditions, the engine is
ready to start.
Start: Turn the key all the way clockwise, and
release the key as soon as the engine starts.
Stop: Turn the key counterclockwise.
Accessory power: Turn the key clockwise to the
next position from the off position.
STEERING HANDLE
The steering handle controls the machine’s
direction. The machine is very responsive to the
steering wheel movements.
Left: Turn the steering handle to the left.
Right: Turn the steering handle to the right.
FUEL LEVEL GAUGE
The fuel level gauge indicates how much fuel is in
the fuel tank.
NOTE: Do not allow the fuel tank to empty
completely. Air can enter the fuel system, and it
may need bleeding before the next engine start.

OPERATION
11
Litter Hawkt330470 (6--99)
HOURMETER
The hourmeter records the number of hours the
machine has been operated. The hourmeter
displays the number of hours in tenths of an hour.
Use this information to determine machine
maintenance intervals.
HORN BUTTON
The horn button controls the horn.
Sound: Push button
POWER KILL SWITCH
The power kill switch halts all power to the
machine.
Halt: Push the power kill switch in.
Restart: Turn off the machine with the ignition
switch. Turn the power kill switch to the right to
release the switch. Restart the machine with the
ignition switch.

OPERATION
Litter Hawkt330470 (2--05)
12
STEERING ASSEMBLY KNOB
The steering assembly knob secures the steering
assembly to the front riding or rear walking
steering locations for the steering handle. See the
POSITIONING STEERING ASSEMBLY section of
this manual.
Tighten: Turn the knob clockwise.
Loosen: Turn the knob counterclockwise.
OPERATING/HAZARD LIGHTS SWITCH
(000000--001579)
The operating/hazard light switch controls the
headlights, taillights and hazard light.
Operating lights: Press the top of the
operating/hazard light switch.
Operating/hazard lights: Press the bottom of the
operating/hazard light switch.
Off: Press the switch to the middle off position.
OPERATING LIGHTS SWITCH (001580-- )
The operating light switch controls the headlights
and taillights.
Operating lights: Press the top of the
operating/hazard light switch.
Off: Press the switch to the middle off position.

OPERATION
13
Litter Hawkt330470 (6--99)
VOICE BOX SWITCH (OPTION)
The voice box switch controls the pre--recorded
voice message. See the VOICE BOX section of
this manual.
Replaying message on : Press and release the
top of the voice box switch.
Message off: Press the bottom of the voice box
switch.
VACUUM FAN/SIDE BRUSHES SWITCH
The vacuum fan/side brushes switch controls the
vacuum fan and side brushes.
Vacuum fan on: Press the top of the vacuum
fan/side brush switch. The vacuum fan will turn
on. The side brushes will also turn on, but will
remain in the raised position.
Vacuum fan on/side brushes down and on: Press
the bottom of the vacuum fan/side brushes
switch. The vacuum fan will turn on. The side
brushes will also turn on and lower to the cleaning
position.
Vacuum fan off/side brushes up and off: Press the
switch to the middle off position. The vacuum fan
will turn off. The side brushes will also turn off,
and will raise to the off position.
Note: Excessive heat in the hopper will cause the
Thermo Sentry
t to shut off the vacuum fan.
If this happens, stop the machine, eliminate the
source of heat. Turn the switch to the off position
and back on to reset.

OPERATION
Litter Hawkt330470 (12--99)
14
WATER PUMP SWITCH
The water pump switch controls the two water
pumps for the dust control system. The water
pumps and the lights on the switch will shut off
when the water tank is empty. See the DUST
CONTROL SYSTEM in the MAINTENANCE
section of this manual.
Off: Press the switch to the middle off position to
stop the water pumps.
Side brush pump on: Press the top of the water
pump switch to activate the steady spray dust
control nozzles in front of each side brush. The
light on the switch will come on while the pump
is on.
Debris hopper pump on: Press the bottom of the
water pump switch to activate the pulsating dust
control spray above the debris hopper. The light
on the switch will come on while the pump is on.

OPERATION
15
Litter Hawkt330470 (2--05)
TURN SIGNAL SWITCH
The turn signal switch powers on and off the
directional signals. A light in the switch will come
on when the turn signals are activated.
Right signal on: Press the right side of the switch
Left signal on: Press the left side of the switch
Signal off: Return the switch to the middle off
position.
ENGINE TEMPERATURE LIGHT
The engine temperature light comes on when the
temperature of the engine coolant is more than
113°C (235°F). If the light comes on, stop
operating the machine. Locate the problem and
have it corrected. See the COOLING SYSTEM in
the MAINTENANCE section of this manual.
ENGINE OIL PRESSURE LIGHT
The engine oil pressure light comes on when the
engine oil pressure falls below 40kPa (5psi). If the
light comes on, stop operating the machine.
Locate the problem, and have it corrected.
(000000--001579)
(001580-- )

OPERATION
Litter Hawkt330470 (2--05)
16
CHARGING SYSTEM LIGHT
The charging system light comes on when the
alternator is not operating within normal range;
13.5 to 15.5V. If the light comes on, stop
operating the machine. Locate the problem, and
have it corrected.
THERMO SENTRY LIGHT
The Thermo Sentry light comes on when the
Thermo Sentry senses excessive heat in the
hopper, possibly from a fire. The Thermo Sentry
will also shut off the vacuum fan. If this happens,
stop the machine and eliminate the source of
heat. Allow the sensor to cool, and it will reset
automatically.
HAZARD LIGHT SWITCH (001580-- )
The hazard light switch controls the hazard lights.
On: Press the center of the hazard light switch.
Off: Press the center of the hazard light switch
again.

OPERATION
17
Litter Hawkt330470 (6--99)
BRAKE PEDAL
The brake pedal stops the machine.
Stop: Release the directional lever and allow it to
return to the neutral position. Step on the brake
pedal.
PARKING BRAKE PEDAL
The parking brake pedal sets and releases the
front wheel brakes of the machine.
Set: Press on the brake pedal as far as possible,
then press on the parking brake pedal with the toe
portion of your foot to lock the parking brake pedal
in place.
FOR SAFETY: Before leaving or
servicing machine, stop on level
surface, set parking brake, turn off
machine, and remove key.
Release: Press on the brake pedal to unlock the
parking brake pedal.

OPERATION
Litter Hawkt330470 (12--99)
18
FUSES
Fuses are one-time protection devices designed
to stop the flow of current in the event of a circuit
overload. Never substitute higher value fuses than
specified.
The fuses are located behind the debris hopper
when viewed from the front of the machine.
Fuse Rating Circuit Protected
FU-1 30 A Glow plug
FU-2 20 A Main
CIRCUIT BREAKERS
The circuit breakers are resettable electrical
circuit protection devices. Their design stops the
flow of current in the event of a circuit overload.
Once a circuit breaker is tripped, it must be reset
manually. Press the reset button after the breaker
has cooled down. The circuit breakers will not
reset until they have had a chance to cool down.
If the overload that caused the circuit breaker to
trip is still there, the circuit breaker will continue to
stop current flow until the problem is corrected.
The circuit breakers are located on the left side of
the machine, above the brake pedals.
The chart lists the circuit breakers and the
electrical components they protect.
Circuit Breaker Rating Circuit Protected
CB-1 15 A Main Power
CB-2 15 A Horn
CB-3 15 A Aux lights
CB-4 15 A Headlights / fuel
CB-5 15 A Taillights / turn sig.
Backup alm option
CB-6 15 A Voice box option
13
5
2
46