Tennant 140 Product manual

140
*MM130*
www.tennantco.com
Sweeper
Operator and Parts Manual
MM130
Rev. 22 (12-2006)
North America / International
(Gas)

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
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.
Specifications and parts are subject to change without notice.
Copyright E1979, 1980, 1982, 1984--1997, 2000, 2001, 2003, 2006 TENNANT Company, Printed in U.S.A.

GENERAL INFORMATION
i
140 MM130 (8--01)
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.
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:
-- Check For Fuel Leaks.
-- Keep Sparks And Open Flame Away
From Refueling Area.
-- 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.
-- Allow Engine To Cool.
-- Keep Flames And Sparks Away From
Fuel System Service Area. Keep Area
Well Ventilated.
-- 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.
WARNING: Engine Emits Toxic Gases. Severe
Respiratory Damage Or Asphyxiation Can
Result. Provide Adequate Ventilation. Consult
With Your Regulatory Agency For Exposure
Limits. Keep Engine Properly Tuned.
WARNING: Brush Throws Debris. Stop Motor
Before Lifting Hopper.
WARNING: Machine Moves When Motor Is
Running. Stop Motor Before Leaving Machine.

GENERAL INFORMATION
140 MM130 (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.
TOXIC GASES WARNING LABEL -- LOCATED
ON MACHINE HANDLE FRAME. FOR SAFETY LABEL -- LOCATED ON MACHINE HANDLE FRAME.
02671
FLYING DEBRIS WARNING LABEL --
LOCATED ON TOP OF HOPPER.

GENERAL INFORMATION
iii
140 MM130 (12--96)
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..........
SYSTEM FLUID CAPACITIES 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....
AFTER UNCRATING AND BEFORE
OPERATING THE MACHINE: 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..
ENGINE STARTER CORD 2--5........
ENGINE CHOKE 2--6.................
ENGINE THROTTLE LEVER 2--6......
IGNITION SHORTING CLIP 2--6.......
MACHINE OPERATION 2--7..............
NORMAL SWEEPING OPERATION 2--7
PRE-START CHECKLIST 2--7.......
TO START MACHINE 2--7..........
TO SWEEP 2--7...................
TO DUMP HOPPER 2--8...........
POST OPERATION CHECKLIST --
ENGINE OPERATING 2--8....
TO STOP MACHINE 2--8...........
POST OPERATION CHECKLIST --
ENGINE STOPPED 2--8......
MACHINE TROUBLESHOOTING 2--9..
MACHINE STORAGE 2--11................
STORING MACHINE 2--11.............
MAINTENANCE 3--1.......................
RECOMMENDED FIRST 5--HOUR
MACHINE INSPECTION 3--3..........
MAINTENANCE CHART 3--4.............
Page
ENGINE 3--5...........................
ENGINE LUBRICATION 3--5...........
COOLING SYSTEM 3--5..............
AIR INTAKE SYSTEM 3--5............
AIR FILTER 3--5...................
TO CLEAN AIR FILTER
ELEMENT 3--5.................
FUEL SYSTEM 3--6..................
FUEL TANK 3--6...................
CARBURETOR CHOKE 3--6........
CARBURETOR 3--6................
IGNITION SYSTEM 3--6...............
SPARK PLUG 3--6.................
IGNITION SYSTEM 3--7............
TO CHECK AND ADJUST
STANDARD IGNITION
SYSTEM 3--7...............
CYLINDER HEAD 3--8................
CYLINDER HEAD 3--8.............
VALVE TAPPET CLEARANCE 3--8..
BRUSHES 3--9..........................
MAIN BRUSH 3--9....................
TO REMOVE MAIN BRUSH 3--9....
TO INSTALL MAIN BRUSH 3--9.....
TO CHECK AND ADJUST
MAIN BRUSH PATTERN 3--10....
SIDE BRUSH 3--10....................
TO REMOVE SIDE BRUSH 3--11.....
TO INSTALL SIDE BRUSH 3--11.....
TO ADJUST SIDE BRUSH 3--11......
DEBRIS HOPPER AND DUST FILTER 3--12.
DEBRIS HOPPER 3--12................
TO EMPTY HOPPER 3--12..........
TO ADJUST HOPPER FLOOR
CLEARANCE 3--12..............
REAR GUIDE WHEELS 3--12...........
TO ADJUST REAR GUIDE
WHEELS 3--12..................
HOPPER DUST FILTER 3--13...........
TO REMOVE DUST FILTER 3--13....
TO INSTALL DUST FILTER 3--14.....
SKIRTS AND SEALS 3--15................
SIDE DUST SKIRTS 3--15..............
TO ADJUST SIDE DUST SKIRTS 3--15
TO REPLACE SIDE DUST
SKIRTS 3--15...................
HOPPER SIDE SEALS 3--16............
TO REPLACE HOPPER SIDE
SEALS 3--16....................
REAR BRUSH SKIRT 3--16.............
TO REPLACE REAR BRUSH
SKIRT 3--16.....................

GENERAL INFORMATION
140 MM130 (8--01)
iv
Page
BELTS AND CHAINS 3--17................
FLAT PROPELLING BELT 3--17.........
TO CHECK AND ADJUST
FLAT PROPELLING BELT 3--17...
TO REPLACE FLAT
PROPELLING BELT 3--17........
ENGINE DRIVE BELT 3--18.............
TO REPLACE ENGINE DRIVE
BELT 3--18......................
BRUSH DRIVE BELT 3--19.............
TO REPLACE BRUSH DRIVE
BELT 3--19......................
SIDE BRUSH DRIVE BELT 3--20........
TO ADJUST SIDE BRUSH
DRIVE BELT 3--20...............
TO REPLACE SIDE BRUSH
DRIVE BELT 3--20...............
STATIC DRAG CHAIN 3--20............
PUSHING AND TRANSPORTING THE
MACHINE3--21.......................
PUSHING THE MACHINE 3--21.........
TRANSPORTING THE MACHINE 3--21..
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--4........
Fig. 3 -- Main Frame And Filter Group 6--6..
Fig. 4 -- Handle Group 6--8................
Fig. 5 -- Hopper Assembly 6--9............
Fig. 6 -- Brush Drive Group 6--10...........
Fig. 7 -- Engine And Wheel Drive Group 6--12
Fig. 8 -- Vacuum Fan Group 6--14...........
Fig. 9 -- Label Kit 6--15....................
Page
OPTIONS 7--1.............................
Fig. 1 -- Side Brush Group 7--2............
Fig. 2 -- Lifting Bracket 7--4...............
Fig. 3 -- Oil Drain Kit 7--5.................
Fig. 4 -- Documentation Group 7--6........
ENGINE PARTS 8--1.......................
Fig. 1 -- Engine Breakdown 8--2...........
CROSS REFERENCE 9-1..................
PART NUMBER TO PAGE NUMBER
CROSS REFERENCE LIST 9-3........
PART DESCRIPTION TO PAGE NUMBER
CROSS REFERENCE LIST 9-6.....

SPECIFICATIONS
1-1
140 MM130 (3--88)
SECTION 1
CONTENTS
Page
MACHINE SPECIFICATIONS 1--3............
POWER TYPE 1--3......................
POWER TRAIN 1--3.....................
SUSPENSION SYSTEM 1--3.............
SYSTEM FLUID CAPACITIES 1--3........
GENERAL MACHINE
DIMENSIONS/CAPACITIES 1--3.......
MACHINE WEIGHTS 1--3................
GENERAL MACHINE PERFORMANCE 1--3
MACHINE DIMENSIONS 1--4................

SPECIFICATIONS
140 MM130 (3--88)
1-2

SPECIFICATIONS
1-3
140 MM130 (12--00)
MACHINE SPECIFICATIONS
POWER TYPE
For machines serial number below 9271:
Engine type -- piston
Ignition -- breaker--type spark
Cycle -- 4
Aspiration -- natural
Cylinders -- 1
Bore -- 2.78 in (70 mm)
Stroke -- 1.87 in (45 mm)
Displacement -- 11.4 cu in (190 cc)
Net power -- 3.1 hp (2.3 kw) @ 2700 rpm
governed
4 hp (3 kw) @ 3600 rpm maximum
For machines serial number 9271 and above:
Engine type -- piston
Ignition -- breaker--type spark
Cycle -- 4
Aspiration -- natural
Cylinders -- 1
Bore -- 2.38 in (60 mm)
Stroke -- 1.75 in (45 mm)
Displacement -- 7.75 cu in (127 cc)
Net power -- 2.3 hp (1.7 kw) @ 2700 rpm
governed
3.5 hp (2.6 kw) @ 3600 rpm maximum
Fuel -- gasoline, 77 octane, leaded or unleaded
Cooling system -- air
POWER TRAIN
Propelling -- limited slip belt driven
Main brush -- belt driven
Side brush option -- belt driven
SUSPENSION SYSTEM
Front (2) -- 4 x 1.37 caster wheels
Rear--8x2solidtire
SYSTEM FLUID CAPACITIES
Fuel tank -- 2 qt. (1.9L)
Engine lubricating oil --- 1.25 pt (0.6L)
GENERAL MACHINE
DIMENSIONS/CAPACITIES
Length -- 52 in (1320 mm)
62 in (1575 mm) with side brush
Width -- 32 in (815 mm)
34.5in(880mm)withsidebrush
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)
37 in (940 mm) with side brush
Hopper capacity -- 2.6 cu ft (0.07 m#)
Dust filter area -- 49 sq ft (4.5 m@)
MACHINE WEIGHTS
Standard net weight, dry -- 185 lb (84 kg)
GVWR -- 310 lb (141 kg)
GENERAL MACHINE PERFORMANCE
Maximum travel speed -- 3 mph (4.8 km/h)
Turning radius -- 56 in (1420 mm)

SPECIFICATIONS
140 MM130 (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
02670

OPERATION
2-1
140 MM130 (7--90)
SECTION 2
CONTENTS
Page
PREPARATION FOR OPERATION 2--3.......
AFTER UNCRATING AND BEFORE
OPERATING THE MACHINE: 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.....
ENGINE STARTER CORD 2--5...........
ENGINE CHOKE 2--6....................
ENGINE THROTTLE LEVER 2--6.........
IGNITION SHORTING CLIP 2--6..........
MACHINE OPERATION 2--7.................
NORMAL SWEEPING OPERATION 2--7...
PRE-START CHECKLIST 2--7.........
TO START MACHINE 2--7.............
TO SWEEP 2--7......................
TO DUMP HOPPER 2--8..............
POST OPERATION CHECKLIST --
ENGINE OPERATING 2--8..........
TO STOP MACHINE 2--8..............
POST OPERATION CHECKLIST --
ENGINE STOPPED 2--8............
MACHINE TROUBLESHOOTING 2--9.....
MACHINE STORAGE 2--11..................
STORING MACHINE 2--11................

OPERATION
140 MM130 (7--90)
2-2

OPERATION
2-3
140 MM130 (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. Check the engine oil level. Fill if necessary
with appropriate oil. See ENGINE
LUBRICATION in the MAINTENANCE
section.
4. Make sure the air filter is securely mounted
on the carburetor.
5. Fill the fuel tank with unleaded gasoline.
FOR SAFETY: When Servicing Machine, Keep
Flames And Sparks Away From Fuel System
Service Area. Keep Area Well Ventilated.
6. Install the brushes as described in
BRUSHES in the MAINTENANCE section.
7. Check the brush pattern(s) as described in
BRUSHES in the MAINTENANCE section.

OPERATION
140 MM130 (7--90)
2-4
OPERATION OF CONTROLS
A
B
C
D
E
F
G
H
I
J
K
For machines below
serial number 009270.
02671
MACHINE COMPONENTS
A. Clutch Control Handle G. Side Brush
B. Ignition Shorting Clip H. Side Brush Arm
C. Engine Starter Cord I. Main Brush Removal Lever
D. Main Brush Lift Handle J. Dust Filter Enclosure
E. Engine Choke K. Engine Throttle Lever
F. Hopper

OPERATION
2-5
140 MM130 (3--97)
CLUTCH CONTROL HANDLE
The clutch control handle operates a cable which
controls the drive belt idler. To propel the machine
forward, press the control handler-engaging the
drive belt. To stop the machine, release the
control handle-disengaging the drive belt.
01190
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 “raised” position.
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 side brush
rotation, pull the side brush arm up, forward and
down into the “operating” position--this engages
the drive belt.
To raise and stop side brush 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
ENGINE STARTER CORD
The engine starter cord engages the ratchet
starter to the engine flywheel. To start the engine,
engage the engine choke, if the engine is cold,
and pull the starter cord.

OPERATION
140 MM130 (12--96)
2-6
ENGINE CHOKE
The engine choke is located on the carburetor
and aids starting cold engines on machines below
serial number 009271, in this serial number set.
To engage the choke on earlier machines, pull the
choke knob out into the “closed” position. To
engage the choke on later machines in this serial
number set, rotate the choke lever away from the
engine into the “closed” position. After the engine
has warmed, return the choke knob or lever to its
“open” position.
B
A
02673
ENGINE CHOKE
A. Choke Lever
B. Carburetor
The engine choke is located next to the fuel tank
on machines with serial number 009271 and
above. To engage the choke, push the lever back
into the “closed” position. After the engine has
warmed, pull the lever forward into the “open”
position.
B
A
06201
ENGINE THROTTLE AND CHOKE LEVERS
A. Choke Lever
B. Throttle Lever
ENGINE THROTTLE LEVER
The engine throttle lever controls engine speed on
machines with serial number 009271 and above.
To speed the engine to the normal speed, push
the lever back. To slow the engine to idle, pull the
lever forward. To stop the engine, pull the lever all
the way forward.
IGNITION SHORTING CLIP
The ignition shorting clip is located next to the
engine spark plug on machines below serial
number 009271. It is used to short the electrical
current away from the engine spark plug to stop
the engine.
To stop the engine, push the shorting clip onto the
spark plug-release until the engine has stopped.
WARNING: Machine Moves When Motor Is
Running. Stop Motor Before Leaving Machine.
B
C
A
02672
IGNITION SHORTING CLIP
A. Engine
B. Shorting Clip
C. Spark Plug

OPERATION
2-7
140 MM130 (6--91)
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-engine operating, stopping
machine, and post operation checklist--engine
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 -- Engine
Operating lists things to check before stopping the
machine engine.
TO STOP MACHINE lists the steps required to
stop the machine.
POST OPERATION CHECKLIST -- Engine
Stopped lists things to check after stopping the
machine engine.
PRE-START CHECKLIST
Check under machine for leak spots.
Check engine lubricating oil level.
Check fuel level.
Check controls for proper operation.
Check service records to determine service
requirements.
FOR SAFETY: Before Starting Machine; Check
For Fuel Leaks, Keep Sparks And Open Flame
Away From Refueling Area, And Make Sure All
Safety Devices Are In Place And Operate
Properly.
TO START MACHINE
NOTE: Before starting machine, perform the
pre-start checks.
1. Close the choke if the engine is cold.
2. Pull the engine starter cord to start the
engine.
3. 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
140 MM130 (12--96)
2-8
TO DUMP HOPPER
1. Stop the engine.
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 -- ENGINE
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.
2. Stop the engine by holding the ignition
shorting clip on the spark plug.
POST OPERATION CHECKLIST -- ENGINE
STOPPED
Check skirts for damage, wear, and adjustment.
Check for wire or string tangled on brushes.
Check for leaks.

OPERATION
2-9
140 MM130 (3--88)
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 reinstall 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 reinstall main brush
Machine will not travel Flat belt broken Replace belt
Oilonflatbeltorshaft 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

OPERATION
140 MM130 (3--88)
2-10
Problem Cause Remedy
Excessive belt wear or
breakage
Engine drive belt broken or
slipping
Replace or adjust belt
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
Engine will not start, or hard
t
o
s
t
a
r
t
Shorting clip in “stop” position Set clip in “run” position
to start Faulty ignition Check spark plugs, points
Faulty carburetion Check fuel level, clogged fuel
lines, incorrectly adjusted
carburetor
Low compression Cylinder head loose, head gasket
leaking, worn piston rings and
valves
Engine overheating Airfilterclogged Clean or replace
Cooling fins clogged Clean
Low oil level Add oil to “full” level
Faulty carburetion Adjust fuel mixture