Tennant 140E Product manual

140E
*MM156*
www.tennantco.com
Sweeper
Operator and Parts Manual
MM156
Rev. 22 (12-2006)
North America / International
(Electric)

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.
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 an environmentally
safe way according to local waste
disposal regulations.
Always remember to recycle.
MACHINE DATA
Please fill out at time of installation for future reference.
Model No. --
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) 513--2850
www.tennantco.com
Specifications and parts are subject to change without notice.
Copyright E1984, 1986 -- 1992, 1994 -- 1997, 2000--2004, 2006 TENNANT Company, Printed in U.S.A.

GENERAL INFORMATION
i
140E MM156 (3--02)
SAFETY PRECAUTIONS
The following symbols are used throughout this
manual as indicated in their descriptions:
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. Read this manual carefully. Know
when these conditions can exist. Locate all safety
devices on the machine. Then, take necessary
steps to train machine operating personnel.
Report machine damage or faulty operation
immediately. Do not use the machine if it is not in
proper operating condition.
WARNING: Batteries Emit Hydrogen Gas.
Explosion Or Fire Can Result. Keep Sparks
And Open Flame Away. Keep Covers Open
When Charging.
WARNING: Brush Throws Debris. Stop Motor
Before Lifting Hopper.
WARNING: Machine Moves When Motor Is
Running. Stop Motor Before Leaving Machine.
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.
3. When Using Machine:
-- Go Slow On Grades And Slippery
Surfaces.
-- Use Care When Backing Machine.
-- Do Not Carry Riders On Machine.
-- Always Follow Safety And Traffic
Rules.
4. Before Leaving Or Servicing Machine:
-- Stop On Level Surface.
-- Turn Off Machine And Remove Key.
5. When Servicing Machine:
-- AvoidMovingParts.DoNotWear
Loose Jackets, Shirts, Or Sleeves
When Working On Machine.
-- 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.
-- Use TENNANT Supplied Or Equivalent
Replacement Parts.
6. 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 Push The Machine
Onto/Off The Truck Or Trailer Unless
The Load Height Is 380 mm (15 in) Or
Less From The Ground.
-- Block Machine Tires.
-- Tie Machine Down To Truck Or Trailer.

GENERAL INFORMATION
140E MM156 (6--91)
ii
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.
MACHINE CREEPING WARNING LABEL --
LOCATED ON MACHINE HANDLE FRAME. FOR SAFETY LABEL -- LOCATED ON MACHINE HANDLE FRAME.
01189
HAZARD CHARGING LABEL -- LOCATED ON
BATTERY COVER.
FLYING DEBRIS WARNING LABEL --
LOCATED ON TOP OF HOPPER.

GENERAL INFORMATION
iii
140E MM156 (3--02)
CONTENTS
Page
GENERAL INFORMATION i..............
SAFETY PRECAUTIONS i............
SPECIFICATIONS 1-1.....................
MACHINE SPECIFICATIONS 1-3.........
POWER TYPE 1-3...................
POWER TRAIN 1-3..................
SUSPENSION SYSTEM 1-3..........
GENERAL MACHINE
DIMENSIONS/CAPACITIES 1-3....
MACHINE WEIGHTS 1-3.............
GENERAL MACHINE
PERFORMANCE 1-3..............
MACHINE DIMENSIONS 1-4.............
OPERATION 2-1..........................
PREPARATION FOR OPERATION 2-3....
OPERATION OF CONTROLS 2-4........
MACHINE COMPONENTS 2-4........
CLUTCH CONTROL HANDLE 2-5.....
MAIN BRUSH LIFT HANDLE 2-5......
SIDE BRUSH 2-5....................
MAIN BRUSH REMOVAL LEVER 2-5..
BATTERY COVER 2-6................
MASTER POWER SWITCH 2-6.......
SHAKER RESET PUSHBUTTON 2-6...
CLEAN FILTER PUSHBUTTON 2-6....
MACHINE CIRCUIT BREAKER 2-6....
CHARGER TIMER SWITCH 2-7.......
CHARGER PANEL 2-7...............
HOUR METER 2-7...................
CHARGING RATE GAUGE 2-7........
MACHINE OPERATION 2-8..............
NORMAL SWEEPING OPERATION 2-8
PRE-START CHECKLIST 2-8.......
TO START MACHINE 2-8..........
TO SWEEP 2-8...................
TO DUMP HOPPER 2-9...........
POST OPERATION CHECKLIST --
MOTOR OPERATING 2-9....
TO STOP MACHINE 2-9...........
POST OPERATION CHECKLIST --
MOTOR STOPPED 2-9......
MACHINE TROUBLESHOOTING 2-10..
MACHINE STORAGE 2-11................
STORING MACHINE 2-11.............
Page
MAINTENANCE 3-1.......................
RECOMMENDED FIRST 20-HOUR
MACHINE INSPECTION 3-3..........
MAINTENANCE CHART 3-4.............
ELECTRICAL SYSTEM 3-6..............
BATTERIES 3-6.....................
BATTERY CHARGING 3-7............
TO CHARGE BATTERIES (For
machines below serial number
009737) 3-7...................
TO CHARGE BATTERIES (For
machines serial number 009737
and above) 3-8.................
ELECTRICAL SCHEMATIC (For machines
below serial number 009737) 3-10.
ELECTRICAL SCHEMATIC (For
machines serial number 009737
and above) 3-11....................
BRUSHES 3-12..........................
MAIN BRUSH 3-12....................
TO REMOVE MAIN BRUSH 3-12....
TO INSTALL MAIN BRUSH 3-12.....
TO CHECK AND ADJUST MAIN
BRUSH PATTERN 3-13..........
SIDE BRUSH 3-14....................
TO REMOVE SIDE BRUSH 3-14.....
TO INSTALL SIDE BRUSH 3-14.....
TO ADJUST SIDE BRUSH 3-14......
DEBRIS HOPPER AND DUST FILTER 3-15.
DEBRIS HOPPER 3-15................
TO EMPTY HOPPER 3-15..........
TO ADJUST HOPPER FLOOR
CLEARANCE 3-15..............
REAR GUIDE WHEELS 3-16...........
TO ADJUST REAR GUIDE
WHEELS 3-16..................
HOPPER DUST FILTER 3-16...........
TO REMOVE DUST FILTER 3-17....
TO INSTALL DUST FILTER 3-17.....
SKIRTS AND SEALS 3-18................
SIDE DUST SKIRTS 3-18..............
TO ADJUST SIDE DUST SKIRTS 3-18
TO REPLACE SIDE DUST
SKIRTS 3-18...................
HOPPER SIDE SEALS 3-19............
TO REPLACE HOPPER SIDE
SEALS 3-19....................
REAR BRUSH SKIRT 3-19.............
TO REPLACE REAR BRUSH
SKIRT 3-19.....................

GENERAL INFORMATION
140E MM156 (8--01)
iv
Page
BELTS AND CHAINS 3-20................
FLAT PROPELLING BELT 3-20.........
TO CHECK AND ADJUST FLAT
PROPELLING BELT 3-20........
TO REPLACE FLAT PROPELLING
BELT 3-20......................
MOTOR DRIVE BELT 3-21.............
TO CHECK AND ADJUST
MOTOR DRIVE BELT 3-21.......
TO REPLACE MOTOR DRIVE
BELT 3-22......................
BRUSH DRIVE BELT 3-23.............
TO REPLACE BRUSH DRIVE
BELT 3-23......................
SIDE BRUSH DRIVE BELT 3-24........
TO ADJUST SIDE BRUSH
DRIVE BELT 3-24...............
TO REPLACE SIDE BRUSH
DRIVE BELT 3-24...............
STATIC DRAG CHAIN 3-24............
PUSHING AND TRANSPORTING THE
MACHINE 3-25........................
PUSHING THE MACHINE 3-25.........
TRANSPORTING THE MACHINE 3-25..
APPENDIX 4-1............................
HARDWARE INFORMATION 4-3.........
STANDARD BOLT TORQUE CHART 4-3
METRIC BOLT TORQUE CHART 4-3..
BOLT IDENTIFICATION 4-3...........
THREAD SEALANT AND LOCKING
COMPOUNDS 4-3................
HOW TO USE THIS MANUAL 5--1...........
IMPORTANT INFORMATION 5--1.........
FINDING A TENNANT PART NUMBER 5--2
PLACING AN ORDER 5--3...............
STANDARD MODEL PARTS 6-1..............
Fig. 1 -- Recommended General
Maintenance Items 6-3.......
Fig. 2 -- Replacement Brushes 6-6........
Fig. 3 -- Main Frame and Charger
Group 6-6..................
Fig. 4 -- Handle Group 6-8...............
Fig. 5 -- Hopper Assembly 6-9............
Fig. 6 -- Brush Drive Group 6-10...........
Fig. 7 -- Motor and Wheel Drive Group 6-12.
Fig. 8 -- Filter Group 6-14..................
Fig. 9 -- Battery Group 6-16...............
Fig. 10 -- Wire Harnesses Group 6-18.......
Fig. 11 -- Vacuum Fan Group 6-20..........
Fig. 12 -- Label Kit 6-21...................
OPTIONS 7-1.............................
Fig. 1 -- Side Brush Group 7-2..............
Fig. 2 -- Lifting Bracket Kit 7-4..............
Fig. 3 -- Fine Particle Filter Kit 7-5...........
Fig. 4 -- Dual Carpet Lint Filter Kit 7-6........
Page
Fig. 5 -- Ammeter Group 7-7................
Fig. 6 -- Grille Kit 7-8......................
Fig. 7 -- Cord Kit 7-9.......................
Fig. 8 -- Documentation Group 7-10.........
CROSS REFERENCE 8-1..................
PART NUMBER TO PAGE NUMBER
CROSS REFERENCE LIST 8-2........
PART DESCRIPTION TO PAGE NUMBER
CROSS REFERENCE LIST 8-4.....

SPECIFICATIONS
1-1
140E MM156 (3--88)
SECTION 1
CONTENTS
Page
MACHINE SPECIFICATIONS 1-3............
POWER TYPE 1-3......................
POWER TRAIN 1-3.....................
SUSPENSION SYSTEM 1-3.............
GENERAL MACHINE
DIMENSIONS/CAPACITIES 1-3.......
MACHINE WEIGHTS 1-3................
GENERAL MACHINE PERFORMANCE 1-3
MACHINE DIMENSIONS 1-4................

SPECIFICATIONS
140E MM156 (3--88)
1-2

SPECIFICATIONS
1-3
140E MM156 (12--00)
MACHINE SPECIFICATIONS
POWER TYPE
Electric motor -- Nominal voltage 24 VDC,
0.75 hp (0.56 kw) @ 2175 rpm, 29 A
Batteries (2) -- 12 V, 530 CCA, 105Ah
Battery charger -- 24 VDC, 15 A output
115 VAC input
Battery charger -- 24 VDC, 15 A, 115/230 VAC
POWER TRAIN
Propelling -- belt driven
Main brush -- belt driven
Side brush option -- belt driven
SUSPENSION SYSTEM
Front (2) -- 4 x 1.37 caster wheels
Rear--8x2solidtire
GENERAL MACHINE
DIMENSIONS/CAPACITIES
Length -- 52 in (1320 mm)
Length with side brush -- 62 in (1575 mm)
Width -- 32 in (815 mm)
Widthwithsidebrush--34.5in(880mm)
Height -- 40.25 in (1020 mm)
Track -- 29.75 in (755 mm)
Wheelbase -- 26.5 in (675 mm)
Main brush diameter -- 8 in (205 mm)
Main brush length -- 28.6 in (725 mm)
Side brush diameter -- 16 in (405 mm)
Sweeping path width -- 29 in (735 mm)
Sweeping path width with side brush -- 37 in
(940 mm)
Hopper capacity -- 2.6 cu ft (0.07 m3)
Dust filter area -- 49 sq ft (4.5 m2)
MACHINE WEIGHTS
GVWR -- 435 lb (197 kg)
Standard net weight, dry -- 310 lb (141 kg)
GENERAL MACHINE PERFORMANCE
Maximum travel speed -- 3 mph (4.8 km/h)
Turning radius -- 56 in (1420 mm)

SPECIFICATIONS
140E MM156 (6--00)
1-4
MACHINE DIMENSIONS
TOP VIEW
SIDE VIEW
26.5 in
(675 mm) 32 in
(815 mm)
40.25 in
(1020 mm)
52 in
(1320 mm)
FRONT VIEW

OPERATION
2-1
140E MM156 (6--91)
SECTION 2
CONTENTS
Page
PREPARATION FOR OPERATION 2-3.......
OPERATION OF CONTROLS 2-4...........
MACHINE COMPONENTS 2-4...........
CLUTCH CONTROL HANDLE 2-5........
MAIN BRUSH LIFT HANDLE 2-5.........
SIDE BRUSH 2-5.......................
MAIN BRUSH REMOVAL LEVER 2-5.....
BATTERY COVER 2-6..................
MASTER POWER SWITCH 2-6..........
SHAKER RESET PUSHBUTTON 2-6.....
CLEAN FILTER PUSHBUTTON 2-6.......
MACHINE CIRCUIT BREAKER 2-6.......
CHARGER TIMER SWITCH 2-7..........
CHARGER PANEL 2-7..................
HOUR METER 2-7......................
CHARGING RATE GAUGE 2-7...........
MACHINE OPERATION 2-8.................
NORMAL SWEEPING OPERATION 2-8...
PRE-START CHECKLIST 2-8.........
TO START MACHINE 2-8.............
TO SWEEP 2-8......................
TO DUMP HOPPER 2-9..............
POST OPERATION CHECKLIST --
MOTOR OPERATING 2-9..........
TO STOP MACHINE 2-9..............
POST OPERATION CHECKLIST --
MOTOR STOPPED 2-9............
MACHINE TROUBLESHOOTING 2-10.....
MACHINE STORAGE 2-11..................
STORING MACHINE 2-11................

OPERATION
140E MM156 (3--88)
2-2

OPERATION
2-3
140E MM156 (6--91)
PREPARATION FOR OPERATION
After uncrating and before operating the machine:
1. Check the machine for shipping damage.
Report any damage to the carrier at once.
2. Read this manual carefully before operating
or servicing this machine.
FOR SAFETY: Do Not Operate Machine,
Unless Operation Manual Is Read And
Understood.
3. Install the batteries and battery cables if not
already done:
A. Place the batteries in the machine with
the positive (+) posts toward the front
of the machine.
A
B
C
D
E
F
00099
BATTERY CABLE CONNECTIONS
A. Cable “4”
B. Cable “3”
C. Cable “1”
D. Brush Lift Lever Side Battery
E. Vacuum Fan Side Battery
F. Front of Machine
B. Connect the cable labeled “1” between
the positive (+) post on the vacuum fan
side battery and the negative (--) post
on the brush lift lever side battery.
C. Connect the cable labeled “3” to the
positive (+) post of the brush lift lever
side battery.
D. Connect the cable labeled “4” to the
negative (--) post of the vacuum fan
side battery.
4. Check the state of charge of the batteries as
described in BATTERIES in the
MAINTENANCE section. Charge the
batteries if necessary.
WARNING: Batteries Emit Hydrogen Gas.
Explosion Or Fire Can Result. Keep Sparks
And Open Flame Away. Keep Covers Open
When Charging.
5. Install the brushes as described in
BRUSHES in the MAINTENANCE section.
6. Connect the batteries-to-machine connector.
A
B
02669
CONNECTING BATTERIES--TO--MACHINE
CONNECTOR
A. Batteries Connector
B. Machine Connector
7. Check the brush pattern(s) as described in
BRUSHES in the MAINTENANCE section.

OPERATION
140E MM156 (8--01)
2-4
OPERATION OF CONTROLS
A
B
C
D
E
F
G
H
J
K
I
L
MN
O
02666
01189
MACHINE COMPONENTS
A. Clutch Control Handle I. Master Power Switch
B. Main Brush Lift Handle J. Shaker Reset Pushbutton
C. Hopper K. Clean Filter Pushbutton
D. Side Brush L. Machine Circuit Breaker
E. Side Brush Arm M. Charger Timer Switch
F. Main Brush Removal Lever N. Hour Meter
G. Battery Cover O. Charging Rate Gauge (Opion)
H. Dust Filter Enclosure

OPERATION
2-5
140E MM156 (8--01)
CLUTCH CONTROL HANDLE
The clutch control handle operates a cable which
controls the drive belt idler. To propel the machine
forward, press the control handle -- engaging the
drive belt. To stop the machine, release the
control handle -- disengaging the drive belt.
06249
CLUTCH CONTROL HANDLE
MAIN BRUSH LIFT HANDLE
The main brush lift handle operates a linkage
which controls the height of the main brush.
To lower the main brush, pull the handle up, back,
and release into the “lower” position.
To raise the main brush, pull the handle up and
forward into the “raise” position.
01192
MAIN BRUSH LIFT HANDLE
SIDE BRUSH
The side brush option gives the machine the
added flexibility of sweeping along walls and
under edges of tables, desks, etc. It is belt driven.
To lower the side brush and start brush rotation,
pull the side brush arm up, forward and down into
the “operating” position -- this engages the drive
belt.
To raise the side brush and stop rotation, pull the
side brush arm up and back into the “raised”
position -- this disengages the drive belt.
01195
RAISING SIDE BRUSH
MAIN BRUSH REMOVAL LEVER
The main brush removal lever controls the main
brush spring arm idler plug position. The spring
arm secures the main brush in the idler plug. To
remove the main brush, lift and pull the lever
away from the machine. This disengages the
main brush idler plug from the main brush.
To install and secure the main brush in the
machine, align the brush slots and idler keys and
swing the lever toward the machine, locking it on
the machine frame. See MAIN BRUSH in the
MAINTENANCE section.
01193
MAIN BRUSH REMOVAL LEVER

OPERATION
140E MM156 (6--91)
2-6
BATTERY COVER
The battery cover covers the batteries and other
electrical components. To tilt the battery cover
forward, push the sides of the cover in. To remove
or reinstall the battery cover, first remove the
hopper. The front of the battery cover has hooks
which are inserted in slots in the machine frame.
Always have the battery cover in place when
operating the machine. Always open the battery
cover when charging the machine batteries.
WARNING: Batteries Emit Hydrogen Gas.
Explosion Or Fire Can Result. Keep Sparks
And Open Flame Away. Keep Covers Open
When Charging.
01194
REMOVING BATTERY COVER
MASTER POWER SWITCH
The master power switch controls the machine
motor. To start the motor, turn the key clockwise
into the “on” position. To stop the motor turn the
key counterclockwise into the “off” position. Do
not leave the machine unattended when the motor
is operating.
WARNING: Machine Moves When Motor Is
Running. Stop Motor Before Leaving Machine.
SHAKER RESET PUSHBUTTON
The shaker reset pushbutton provides shaker
motor electrical overload protection. It is a 15 A
circuit breaker. In the event of a circuit overload,
the circuit breaker will trip. To reset the circuit
breaker, push the reset pushbutton. If the
overload which caused the circuit breaker to trip is
still present in the circuit, the circuit breaker will
continue to stop current flow until the overload is
corrected.
CLEAN FILTER PUSHBUTTON
The clean filter pushbutton controls the dust filter
shaker motor.
To shake and clean the dust filter with the shaker
motor, push the button in for 15 seconds. To stop
the shaker motor, release the pushbutton.
MACHINE CIRCUIT BREAKER
The machine circuit breaker provides the machine
electrical overload protection, excluding the filter
shaker motor. It is a 50 A circuit breaker. In the
event of a circuit overload, the circuit breaker will
trip. To reset the circuit breaker, push the reset
button in. If the overload which caused the circuit
breaker to trip is still present in the circuit, the
circuit breaker will continue to stop current flow
until the overload is corrected.

OPERATION
2-7
140E MM156 (9--92)
CHARGER TIMER SWITCH
The charger timer switch controls the battery
charger on machines below serial number
009737. To start the battery charger, open the
battery cover, then plug the battery charger into
an appropriate voltage wall outlet, then turn the
switch knob to the desired number of hours you
wish to charge the batteries. The timer will
automatically shut off the charger after the time
has elapsed.
WARNING: Batteries Emit Hydrogen Gas.
Explosion Or Fire Can Result. Keep Sparks
And Open Flame Away. Keep Covers Open
When Charging.
CHARGER PANEL
The charger panel indicates battery charging
status on machines serial number 009737 and
above. The panel is located next to the vacuum
fan housing. The panel shows the status of
charging after the charger has been plugged into
a wall outlet.
The panel also has an interrupt switch to be used
if the charging cycle needs to be stopped.
NOTE: If the charge cycle has to be stopped,
press the interrupt switch while unplugging the
charger.
A
06898
CHARGER PANEL
A. Interrupt Switch
HOUR METER
The hour meter records the number of hours the
machine has been operated. This information is
useful in determining when to service the
machine.
CHARGING RATE GAUGE
The charging rate gauge indicates the rate of
charge being accepted by the batteries. The
batteries are charged when the gauge needle is in
the black “CHD” area. The batteries are still being
charged when the gauge needle is in the green
“normal charging” area.

OPERATION
140E MM156 (6--91)
2-8
MACHINE OPERATION
NORMAL SWEEPING OPERATION
A normal sweeping operation consists of seven
typical operations: pre-start checklist, starting
machine, sweeping, dumping hopper, post
operation checklist -- motor operating, stopping
machine, and post operation checklist -- motor
stopped.
THE PRE-START CHECKLIST lists things to
check before starting the machine.
TO START MACHINE lists the steps required to
start the machine.
TO SWEEP lists things to keep in mind before
and during the sweeping operation.
TO DUMP HOPPER lists the steps required to
dump the hopper.
POST OPERATION CHECKLIST -- M o t o r
Operating lists things to check before stopping the
machine motor.
TO STOP MACHINE lists the steps required to
stop the machine.
POST OPERATION CHECKLIST -- M o t o r
Stopped lists things to check after stopping the
machine motor.
PRE-START CHECKLIST
Check under machine for leak spots.
Check battery charge level.
Check controls for proper operation.
Check service records to determine service
requirements.
FOR SAFETY: Before Starting Machine, Make
Sure All Safety Devices Are In Place And
Operate Properly.
TO START MACHINE
NOTE: Before starting machine, perform the
pre-start checks.
1. Place the master power switch in the “on”
position.
2. Drive the machine to the area to be cleaned.
TO SWEEP
Plan the sweeping in advance. Try to arrange long
runs with minimum stopping and starting. Sweep
debris from very narrow aisles into main aisles
ahead of time. Do an entire floor or section at one
time. Overlap brush paths.
Pick up oversize debris before sweeping. Flatten
or remove bulky cartons from aisles before
sweeping. Pick up pieces of wire, twine, string,
etc., which could become entangled in brush or
brush plugs.
Press the clutch handle to place the machine in
motion. Release the clutch handle for easier
turning. Sweep as straight a path as possible.
Avoid bumping into posts or scraping the sides of
the sweeper. Empty the debris hopper when it
becomes full.
1. Place the main brush lift handle in the
“lower” position.
2. Pull the side brush arm up, forward and
down into the “operating” position if present.
3. Sweep as required.
NOTE: Do not allow the machine to remain
stationary with machine operating and the main
brush in the “lower” position as it may cause wear
marks on the floor.

OPERATION
2-9
140E MM156 (6--91)
TO DUMP HOPPER
1. Stop the motor.
WARNING: Brush Throws Debris. Stop Motor
Before Lifting Hopper.
2. Grasp the hopper handles with both hands.
3. Lift and swing the hopper upward to remove
the hopper from the machine.
01196
REMOVING HOPPER
4. Dump the debris out of the hopper into
suitable refuse container.
5. Tip the hopper down and slide it into place
on the machine.
POST OPERATION CHECKLIST -- MOTOR
OPERATING
Check brush patterns for width and evenness.
TO STOP MACHINE
1. When finished sweeping, place the main
brush lift handle and the side brush arm in
the “raise” position.
FOR SAFETY: Before Leaving Or Servicing
Machine; Stop On Level Surface, And Turn Off
Machine And Remove Key.
2. Stop the motor.
POST OPERATION CHECKLIST -- MOTOR
STOPPED
Check the batteries state of charge. Charge if
needed.
Check skirts for damage, wear, and adjustment.
Check for wire or string tangled on brushes.

OPERATION
140E MM156 (6--91)
2-10
MACHINE TROUBLESHOOTING
Problem Cause Remedy
Poor sweeping performance Main brush worn out Replace main brush
Main Brush not properly adjusted Adjust main brush lift handle to
obtain correct brush pattern
Main Brush not level with floor Adjust brush pattern
Hopper full Empty hopper
Dust filter clogged Remove and clean dust filter
Brush jammed with debris Remove debris
Hopper lip or dust skirt not
properly adjusted Adjust hopper lip or dust skirt
Brush drive belts slipping or
broken Adjust or replace belts
Dusting Dust filter clogged Remove and clean filter
Filter not seated correctly against
its seals Remove and re--install filter
Dust filter damaged Replace dust filter
Hopper full Empty hopper
Clogged ducts Clean ducts
Ducts not engaging seals or seals
damaged Adjust or replace seals
Dust skirts not properly adjusted
or are damaged Adjust or replace dust skirts
Vacuum fan not operating Fan drive sheave or impeller key
is broken. Check drive belt
Brush pattern not even Main brush not lowering evenly
due to debris jam Remove main brush and debris
Bail arm not level Adjust arm position
Main brush spring arm may be out
of adjustment Adjust arm position
Main brush not seated correctly
on drive cups Remove and re--install main brush
Machine will not travel Flat belt broken Replace belt
Oil on flat belt or shaft Clean belt and sheaves
Clutch shaft arm loose or out of
adjustment Adjust arm
Clutch cable broken or out of
adjustment Replace or adjust cable
Rear drive wheel jammed Free wheel
Motor drive belt broken or slipping Replace or adjust belt
Excessive belt wear or
breakage Belt is over--tensioned or
under--tensioned, causing
slippage
Adjust belt tension
Belt sheaves have moved out of
adjustment Align sheaves
Belt or sheaves have dirt or oil on
them Clean sheaves and belt