Tennant 1186 User manual

1186
MM267
Rev. 05 (12–95)
(Operator Manual)

This manual is furnished with each new TENNANT Model 1186. It provides necessary operating and
preventive maintenance instructions. Read this manual completely and understand the machine before
operating or servicing it.
This manual covers all machine variations and standard options. The instruction portion of the manual
consists of the Specification, Operation, Maintenance, and Appendix sections. The parts portion consists
of the Standard Parts, Options, Engine Parts, Gasoline, LPG; and Cross Reference sections.
All right side and left side references to the machine are determined by facing the direction of forward
travel. All hardware considered to be of a common nature or locally available has been omitted from the
parts sections. Be aware that this machine may contain metric hardware. Make sure you use equivalent
hardware when replacement becomes necessary.
This machine will provide excellent service. However, the best results will be obtained at minimum costs
if:
 The machine is operated with reasonable care.
 The machine is maintained regularly – per the maintenance instructions provided.
 The machine is maintained with TENNANT supplied or equivalent parts.
Parts and supplies may be ordered by phone or mail from any TENNANT parts and service center,
distributor, or from any of the TENNANT subsidiaries. Before ordering parts or supplies, be sure to have
your machine model number and serial number handy. Fill out the data block below for future reference.
MACHINE DATA
Please fill out at time of installation.
Machine Serial Number –
Engine Serial Number –
Sales Representative –
Customer Number –
Date of Installation –
Manual Number – MM267
Revision: 05
Published: 12–95
Trademark Registered in: Austria, Benelux, Denmark, England, France, Germany, Italy, Spain,
Switzerland, United States, Argentina, Australia, Canada, Japan, Mexico, Sweden, by TENNANT,
Minneapolis, Minnesota, U.S.A.
Copyright 1990, 1991, 1992, 1994, 1995 TENNANT, Printed in U.S.A.

GENERAL INFORMATION
i
1186 MM267 (6–94)
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.
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.
–Check Brakes And Steering For Proper
Operation.
3. When Using Machine:
–Go Slow On Grades And Slippery
Surfaces.
–Use Care When Backing Machine.
4. Before Leaving Or Servicing Machine:
–Stop On Level Surface.
–Set Parking Brake.
–Turn Off Machine And Remove Key.
5. When Servicing Machine:
–Avoid Moving Parts. Do Not Wear
Loose Jackets, Shirts, Or Sleeves
When Working On Machine.
–Use Hoist Or Jack Of Adequate
Capacity To Lift 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.
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: Heavy Hopper. Get Help To
Handle.
WARNING: Flammable Materials Can
Cause An Explosion Or Fire. Do Not
Use Flammable Materials In Tank(s).
WARNING: Flammable Materials Or
Reactive Metals Can Cause Explosion
Or Fire. Do Not Pick Up.

GENERAL INFORMATION
1186 MM267 (6–94)
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.
FOR SAFETY LABEL - LOCATED ON THE
TOP OF THE SOLUTION TANK. TOXIC GASES LABEL –LOCATED ON THE
LEFT SIDE PANEL.
BACK STRAIN LABEL –LOCATED ON THE
UNDERSIDE OF THE FILTER ASSEMBLY.
06323
FLAMMABLE MATERIALS LABEL –
LOCATED ON RIGHT SIDE PANEL.
FLAMMABLE MATERIALS LABEL –
LOCATED ON RIGHT SIDE PANEL.

GENERAL INFORMATION
iii
1186 MM267 (6–94)
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 MACHINE: 2-3. . . . . .
OPERATION OF CONTROLS 2-4. . . . . . .
MACHINE COMPONENTS 2-4. . . . . . . . . .
INSTRUMENT PANEL SYMBOLS 2-5.
CONTROLS AND INSTRUMENTS 2-6
CLUTCH HANDLES 2-7. . . . . . . . . . . . .
SOLUTION FLOW SWITCH 2-7. . . . . .
FILTER SHAKER BY-PASS SWITCH 2-7
AMMETER 2-7. . . . . . . . . . . . . . . . . . . . .
MAIN BRUSH LEVER 2-7. . . . . . . . . . . .
HOUR METER 2-7. . . . . . . . . . . . . . . . . .
START SWITCH 2-7. . . . . . . . . . . . . . . .
KEY-OPERATED ON-OFF SWITCH 2-7
ENGINE CHOKE KNOB 2-8. . . . . . . . . .
CIRCUIT BREAKERS AND FUSES 2-8
VACUUM SHUT-OFF KNOB 2-8. . . . . .
PARKING BRAKE LEVER 2-8. . . . . . . .
SQUEEGEE LEVER 2-8. . . . . . . . . . . . .
SIDE BRUSH ARM 2-8. . . . . . . . . . . . . .
THERMO-SENTRY2-9. . . . . . . . . . . .
Page
MACHINE OPERATION 2-10. . . . . . . . . . . . .
NORMAL SWEEPING OPERATION 2-10
PRE-START CHECKLIST 2-10. . . . . .
TO START MACHINE 2-10. . . . . . . . .
TO SWEEP 2-11. . . . . . . . . . . . . . . . . .
TO DUMP HOPPER 2-11. . . . . . . . . .
POST OPERATION CHECKLIST –
ENGINE OPERATING 2-11. . . . . .
TO STOP MACHINE 2-11. . . . . . . . . .
POST OPERATION CHECKLIST –
ENGINE STOPPED 2-12. . . . . . . .
NORMAL SCRUBBING OPERATION 2-12
PRE-START CHECKLIST 2-12. . . . . .
TO START MACHINE 2-12. . . . . . . . .
TO SCRUB 2-13. . . . . . . . . . . . . . . . . .
TO DRAIN SOLUTION TANK AND
EMPTY DEBRIS HOPPER 2-14. .
POST OPERATION CHECKLIST –
ENGINE OPERATING 2-15. . . . . .
TO STOP MACHINE 2-15. . . . . . . . . .
POST OPERATION CHECKLIST –
ENGINE STOPPED 2-15. . . . . . . .
DOUBLE SCRUBBING OPERATION 2-15
OPERATION ON GRADES 2-15. . . . . . .
MACHINE TROUBLESHOOTING 2-16.
TRANSPORTING MACHINE 2-17. . . . . . . . .
MACHINE TIE-DOWNS 2-17. . . . . . . . . .
MACHINE STORAGE 2-18. . . . . . . . . . . . . . .
STORING MACHINE 2-18. . . . . . . . . . . .
MAINTENANCE 3-1. . . . . . . . . . . . . . . . . . . . . . .
RECOMMENDED FIRST 25-HOUR
MACHINE INSPECTION 3-3. . . . . . . . .
MAINTENANCE CHART 3-4. . . . . . . . . . . .
LUBRICATION 3-6. . . . . . . . . . . . . . . . . . . . .
ENGINE 3-6. . . . . . . . . . . . . . . . . . . . . . . .
DRIVE CHAINS 3-6. . . . . . . . . . . . . . . . .
BRUSH ARM PIVOTS 3-6. . . . . . . . . . .
SIDE BRUSH GEAR BOX 3-6. . . . . . . .
REAR CASTER 3-7. . . . . . . . . . . . . . . . .
SELF ADJUSTING SHEAVE 3-7. . . . . .
SQUEEGEE PIVOT 3-7. . . . . . . . . . . . .

GENERAL INFORMATION
1186 MM267 (6–94)
iv
Page
ENGINE 3-8. . . . . . . . . . . . . . . . . . . . . . . . . .
ENGINE LUBRICATION 3-8. . . . . . . . . .
COOLING SYSTEM 3-8. . . . . . . . . . . . .
AIR INTAKE SYSTEM 3-8. . . . . . . . . . .
AIR FILTER 3-8. . . . . . . . . . . . . . . . . .
TO CLEAN OR REPLACE AIR
FILTER ELEMENT 3-8. . . . . . . . .
FUEL SYSTEM –GASOLINE 3-9. . . . .
FUEL FILTER 3-9. . . . . . . . . . . . . . . .
CARBURETOR 3-9. . . . . . . . . . . . . . .
FUEL SYSTEM –LPG 3-9. . . . . . . . . . .
LPG FUEL SYSTEM 3-9. . . . . . . . . .
FUEL TANKS 3-10. . . . . . . . . . . . . . . .
TO CHANGE AN LPG FUEL
TANK 3-11. . . . . . . . . . . . . . . . . . . .
FUEL FILTER LOCK 3-12. . . . . . . . . .
REGULATOR 3-12. . . . . . . . . . . . . . . .
CARBURETOR 3-12. . . . . . . . . . . . . . .
LPG FUEL TROUBLESHOOTING 3-13
ELECTRICAL SYSTEM 3-13. . . . . . . . . .
SPARK PLUG 3-13. . . . . . . . . . . . . . . .
IGNITION SYSTEM 3-13. . . . . . . . . . .
STARTER 3-13. . . . . . . . . . . . . . . . . . .
CYLINDER HEAD 3-14. . . . . . . . . . . . . . .
VALVE TAPPET CLEARANCE 3-14.
PCV SYSTEM 3-14. . . . . . . . . . . . . . . . . .
TUNE-UP CHART 3-14. . . . . . . . . . . . . . .
ELECTRICAL SYSTEM 3-15. . . . . . . . . . . . .
BATTERY 3-15. . . . . . . . . . . . . . . . . . . . . .
ELECTRICAL SCHEMATIC 3-16. . . . . . .
BELTS AND CHAINS 3-17. . . . . . . . . . . . . . .
PROPELLING BELTS 3-17. . . . . . . . . . . .
TO CHECK AND ADJUST
PROPELLING BELTS
TENSION 3-17. . . . . . . . . . . . . . . . .
TO REPLACE PROPELLING
BELTS 3-18. . . . . . . . . . . . . . . . . . .
SIDE BRUSH BELT 3-19. . . . . . . . . . . . . .
TO CHECK AND ADJUST SIDE
BRUSH BELT TENSION 3-19. . . .
TO REPLACE SIDE BRUSH
BELT 3-20. . . . . . . . . . . . . . . . . . . . .
SHORT MAIN BRUSH BELT 3-21. . . . . .
TO REPLACE SHORT MAIN
BRUSH BELT 3-21. . . . . . . . . . . . .
LONG MAIN BRUSH BELT 3-21. . . . . . .
TO REPLACE LONG MAIN
BRUSH BELT 3-21. . . . . . . . . . . . .
VACUUM FAN BELT 3-22. . . . . . . . . . . . .
TO CHECK AND ADJUST VACUUM
FAN BELT TENSION 3-22. . . . . . .
TO REPLACE VACUUM
FAN BELT 3-23. . . . . . . . . . . . . . . .
WHEEL DRIVE CHAINS 3-23. . . . . . . . .
STATIC DRAG CHAIN 3-23. . . . . . . . . . .
Page
BRUSHES 3-24. . . . . . . . . . . . . . . . . . . . . . . . .
MAIN BRUSH 3-24. . . . . . . . . . . . . . . . . . .
TO REMOVE MAIN BRUSH 3-24. . .
TO INSTALL MAIN BRUSH 3-24. . . .
TO CHECK AND ADJUST MAIN
BRUSH PATTERN 3-24. . . . . . . . .
SIDE BRUSH 3-25. . . . . . . . . . . . . . . . . . .
TO REMOVE SIDE BRUSH 3-25. . . .
TO INSTALL SIDE BRUSH 3-26. . . .
TO ADJUST SIDE BRUSH
PATTERN 3-26. . . . . . . . . . . . . . . . .
SKIRTS AND SEALS 3-27. . . . . . . . . . . . . . .
HOPPER LIP SKIRT 3-27. . . . . . . . . . . . .
REAR BRUSH SKIRTS 3-27. . . . . . . . . .
HOPPER TOP SEAL 3-27. . . . . . . . . . . . .
MAIN BRUSH COMPARTMENT
SKIRTS 3-27. . . . . . . . . . . . . . . . . . . . .
DEBRIS HOPPER AND DUST
FILTER 3-28. . . . . . . . . . . . . . . . . . . . . .
DEBRIS HOPPER 3-28. . . . . . . . . . . . . . .
TO CHECK AND ADJUST HOPPER
FLOOR CLEARANCE 3-28. . . . . .
TO ADJUST DUST FILTER TO
HOPPER SEALING 3-29. . . . . . . .
DUST FILTER 3-29. . . . . . . . . . . . . . . . . . .
TO REMOVE DUST FILTER 3-30. . .
SOLUTION TANK 3-31. . . . . . . . . . . . . . . . . .
SOLUTION TANK 3-31. . . . . . . . . . . . . . .
TO DRAIN AND CLEAN
SOLUTION TANK 3-31. . . . . . . . . .
REAR SQUEEGEE 3-32. . . . . . . . . . . . . . . . .
REAR SQUEEGEE 3-32. . . . . . . . . . . . . .
TO REMOVE SQUEEGEE
ASSEMBLY 3-32. . . . . . . . . . . . . . .
TO INSTALL SQUEEGEE
ASSEMBLY 3-33. . . . . . . . . . . . . . .
TO REPLACE FRONT
SQUEEGEE BLADE 3-33. . . . . . .
TO REPLACE REAR
SQUEEGEE BLADE 3-34. . . . . . .
TO ADJUST SQUEEGEE 3-35. . . . . .
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. . . . . . . . . . . . . . .

GENERAL INFORMATION
v
1186 MM267 (6–94)
Page
HOW TO USE THIS MANUAL 5-1. . . . . . . . . . . . .
IMPORTANT INFORMATION 5-1. . . . . . . . . . .
FINDING A TENNANT PART NUMBER 5-2. .
PLACING AN ORDER 5-3. . . . . . . . . . . . . . . . .
STANDARD PARTS 6-1. . . . . . . . . . . . . . . . . . . .
Fig. 1 –Recommended General
Maintenance Items 6-2. . . . . . . . .
Fig. 2 –Replacement Brushes 6-3. . . . . . . . . .
Fig. 3 –Main Frame Group 6-4. . . . . . . . . . . . .
Fig. 4 –Covers Group 6-6. . . . . . . . . . . . . . . . .
Fig. 5 –Handle and Battery Group 6-8. . . . . .
Fig. 6 –Engine and Sheaves Group 6-10. . . .
Fig. 7 –Engine and Fuel Tank Group,
LPG 6-12. . . . . . . . . . . . . . . . . . . . .
Fig. 8 –Brush Drive Group 6-14. . . . . . . . . . . .
Fig. 9 –Sweeper/Scrubber Hopper
Group 6-16. . . . . . . . . . . . . . . . . . .
Fig. 10 –Solution and Recovery Tank
Group 6-18. . . . . . . . . . . . . . . . . . .
Fig. 11 –Rear Squeegee Lift Group 6-20. . . . .
Fig. 12 –Rear Squeegee Group 6-22. . . . . . . .
Fig. 13 –Wheel Drive Group 6-23. . . . . . . . . . .
Fig. 14 –Vacuum Fan Group 6-24. . . . . . . . . . .
Fig. 15 –Vacuum Fan Shutoff Group 6-25. . . .
Fig. 16 –Filter and Shaker Motor Group 6-26.
Fig. 17 –Instrument Panel Group 6-27. . . . . . .
Fig. 18 –Wire Harnesses Group,
Gasoline 6-28. . . . . . . . . . . . . . . . .
Fig. 19 –Label Group 6-29. . . . . . . . . . . . . . . . .
OPTIONS 7-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fig. 1 –Hopper Group 7-2. . . . . . . . . . . . . . . . .
Fig. 2 –Side Scrub Brush Kit 7-3. . . . . . . . . . .
Fig. 3 –Fine Particle Filter Kit 7-4. . . . . . . . . .
Fig. 4 –Lift and Tie–Down Kit 7-6. . . . . . . . . . .
Fig. 5 –Dual Caster Group 7-8. . . . . . . . . . . . .
Fig. 6 –Fire Extinguisher Kit 7-9. . . . . . . . . . . .
Fig. 7 –Fuel Tank Group, LPG 7-10. . . . . . . .
Fig. 8 –Double Wheel Kit 7-11. . . . . . . . . . . . .
Page
ENGINE PARTS, GASOLINE, LPG 8-1. . . . . . .
Fig. 1 –Crankcase Group 8-2. . . . . . . . . . . . . .
Fig. 2 –Camshaft and Valves Group 8-4. . . .
Fig. 3 –Air Intake Group 8-5. . . . . . . . . . . . . . .
Fig. 4 –Baffles and Shroud Group 8-6. . . . . .
Fig. 5 –Breather and Vent Group 8-7. . . . . . .
Fig. 6 –Flywheel Group 8-8. . . . . . . . . . . . . . .
Fig. 7 –Electric Start Group 8-9. . . . . . . . . . . .
Fig. 8 –Governor Group 8-10. . . . . . . . . . . . . .
Fig. 9 –Ignition Group 8-11. . . . . . . . . . . . . . . .
Fig. 10 –Carburetor Group, Gasoline 8-12. . .
Fig. 11 –Carburetor Group, Gasoline 8-13. . .
Fig. 12 –Fuel Pump Group 8-14. . . . . . . . . . . .
Fig. 13 –Fuel Tank Group 8-15. . . . . . . . . . . . .
Fig. 14 –Fuel Pump Group, LPG 8-16. . . . . . .
Fig. 15 –Carburetor Group, LPG 8-17. . . . . . .
CROSS REFERENCE 9-1. . . . . . . . . . . . . . . . . .
PART NUMBER TO PAGE NUMBER
CROSS REFERENCE LIST 9-2. . . . . . .

GENERAL INFORMATION
1186 MM267 (6–94)
vi

SPECIFICATIONS
1Ć1
1186 MM267 (6–94)
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
1186 MM267 (6–94)
1Ć2

SPECIFICATIONS
1Ć3
1186 MM267 (6–94)
MACHINE SPECIFICATIONS
POWER TYPE
Engine type –piston
Ignition –breakerless type spark
Cycle –4
Aspiration –natural
Cylinders –1
Bore –2.94 in (75 mm)
Stroke –2.75 in (70 mm)
Displacement –18.6 cu in (305 cc)
Net power governed –5.3 hp (3.95 kw)
@ 2100 rpm
Net power maximum –8 hp (6 kw) @ 3600 rpm
Fuel –gasoline, unleaded, 87 octane or LPG
Cooling system –air
Electrical system –12 V nominal, 15 A alternator
POWER TRAIN
Propelling –belt driven
Differential –belt driven
Drive axle (2) –chain driven
Main brush –belt driven
Side brush –belt driven
Vacuum fan –belt driven
SUSPENSION SYSTEM
Front –10 x 2.00 zero pressure tires (2)
Rear –5 x 1.5 caster (1)
SYSTEM FLUID CAPACITIES
Engine lubricating oil –1 qt (0.95 L)
Fuel tank –1.25 gal (4.75 L) gasoline
20 lb (9 kg) LPG
Solution tank –11 gal (41.64 L)
GENERAL MACHINE DIMENSIONS –
CAPACITIES
Length –58 in (1475 mm)
Width –36 in (915 mm) less side brush
Height –38 in (965 mm)
Track –front 31 in (790 mm)
Wheel base –23.5 in (595 mm)
Main brush –width 26 in (660 mm)
Main brush –diameter 10 in (255 mm)
Side brush –diameter 17 in (430 mm)
Sweeping path width (total) –34 in (865 mm)
Hopper capacity –2 cu ft (0.06 m)
100 lb (45.4 kg)
Dust filter –49 sq ft (4.55 m), pleated panel
filter element
MACHINE WEIGHTS
GVWR –690 lb (312.9 kg)
GENERAL MACHINE PERFORMANCE
Maximum forward speed –3.2 mph (5.2 km/h)
Maximum reverse speed –3 mph (4.8 km/h)
Turning radius –65 in (1650 mm)

SPECIFICATIONS
1186 MM267 (6–94)
1Ć4
MACHINE DIMENSIONS
SIDE VIEW
TOP VIEW
36 i
(915 mm)
58 i (1475 mm)
38 i
(965 mm)
06303

OPERATION
2Ć1
1186 MM267 (6–94)
SECTION 2
CONTENTS
Page
PREPARATION FOR OPERATION 2-3. . . . . . .
AFTER UNCRATING AND BEFORE
OPERATING MACHINE: 2-3. . . . . . . . . .
OPERATION OF CONTROLS 2-4. . . . . . . . . . .
MACHINE COMPONENTS 2-4. . . . . . . . . . . . . .
INSTRUMENT PANEL SYMBOLS 2-5. . . . .
CONTROLS AND INSTRUMENTS 2-6. . . .
CLUTCH HANDLES 2-7. . . . . . . . . . . . . . . . .
SOLUTION FLOW SWITCH 2-7. . . . . . . . . .
FILTER SHAKER BY-PASS SWITCH 2-7. .
AMMETER 2-7. . . . . . . . . . . . . . . . . . . . . . . . .
MAIN BRUSH LEVER 2-7. . . . . . . . . . . . . . . .
HOUR METER 2-7. . . . . . . . . . . . . . . . . . . . . .
START SWITCH 2-7. . . . . . . . . . . . . . . . . . . .
KEY-OPERATED ON-OFF SWITCH 2-7. . .
ENGINE CHOKE KNOB 2-8. . . . . . . . . . . . . .
CIRCUIT BREAKERS AND FUSES 2-8. . . .
VACUUM SHUT-OFF KNOB 2-8. . . . . . . . . .
PARKING BRAKE LEVER 2-8. . . . . . . . . . . .
SQUEEGEE LEVER 2-8. . . . . . . . . . . . . . . . .
SIDE BRUSH ARM 2-8. . . . . . . . . . . . . . . . . .
THERMO-SENTRY2-9. . . . . . . . . . . . . . . .
MACHINE OPERATION 2-10. . . . . . . . . . . . . . . . .
NORMAL SWEEPING OPERATION 2-10. . .
PRE-START CHECKLIST 2-10. . . . . . . . .
TO START MACHINE 2-10. . . . . . . . . . . . .
TO SWEEP 2-11. . . . . . . . . . . . . . . . . . . . . .
TO DUMP HOPPER 2-11. . . . . . . . . . . . . .
POST OPERATION CHECKLIST –
ENGINE OPERATING 2-11. . . . . . . . . .
TO STOP MACHINE 2-11. . . . . . . . . . . . . .
POST OPERATION CHECKLIST –
ENGINE STOPPED 2-12. . . . . . . . . . . .
Page
NORMAL SCRUBBING OPERATION 2-12. .
PRE-START CHECKLIST 2-12. . . . . . . . .
TO START MACHINE 2-12. . . . . . . . . . . . .
TO SCRUB 2-13. . . . . . . . . . . . . . . . . . . . . .
TO DRAIN SOLUTION TANK AND
EMPTY DEBRIS HOPPER 2-14. . . . . .
POST OPERATION CHECKLIST –
ENGINE OPERATING 2-15. . . . . . . . . .
TO STOP MACHINE 2-15. . . . . . . . . . . . . .
POST OPERATION CHECKLIST –
ENGINE STOPPED 2-15. . . . . . . . . . . .
DOUBLE SCRUBBING OPERATION 2-15. .
OPERATION ON GRADES 2-15. . . . . . . . . . .
MACHINE TROUBLESHOOTING 2-16. . . . .
TRANSPORTING MACHINE 2-17. . . . . . . . . . . .
MACHINE TIE-DOWNS 2-17. . . . . . . . . . . . . .
MACHINE STORAGE 2-18. . . . . . . . . . . . . . . . . .
STORING MACHINE 2-18. . . . . . . . . . . . . . . .

OPERATION
1186 MM267 (6–94)
2Ć2

OPERATION
2Ć3
1186 MM267 (6–94)
PREPARATION FOR OPERATION
AFTER UNCRATING AND BEFORE
OPERATING MACHINE:
1. Check the machine for shipping damage.
2. Read this manual carefully before operating
or servicing the machine.
FOR SAFETY: Do Not Operate Machine Unless
Operation Manual Is Read And Understood.
3. Check the engine oil level. See ENGINE in
the MAINTENANCE section.
4. Check the main brush adjustment. See
BRUSHES in the MAINTENANCE section.
5. Fill the fuel tank, or install an LPG fuel tank
on the machine.
FOR SAFETY: When Servicing Machine, Keep
Flames And Sparks Away From Fuel System
Service Area. Keep Area Well Ventilated.

OPERATION
1186 MM267 (6–94)
2Ć4
OPERATION OF CONTROLS
B
C
G
K
L
N
P
O
M
I
J
F
E
D
A
H
06323
06322
MACHINE COMPONENTS
A. Clutch Handle I. Instrument Panel
B. Stationary Handle J. Solution Tank Cover
C. Battery Access Cover K. Solution Tank
D. Filter Cover L. Squeegee Suction Hose
E. Hopper M. Squeegee
F. Side Brush N. Drain Hose
G. Side Brush Arm O. Squeegee Lift Lever
H. Engine Access Cover P. Parking Brake Lever

OPERATION
2Ć5
1186 MM267 (6–94)
INSTRUMENT PANEL SYMBOLS
The symbols are used to identify controls and
displays on the machine:
Filter Shaker
Main Brush Free-Float
Main Brush Down
Main Brush Up
Vacuum Shut-Off
Circuit Breaker No. 1
Circuit Breaker No. 2
Choke
Engine Start
Key Switch
Solution Flow
Parking Brake
Side Brush

OPERATION
1186 MM267 (6–94)
2Ć6
A
B
D
CE
F
G
H
IJK
L
M
K
06317
CONTROLS AND INSTRUMENTS
A. Stationary Handle H. Clutch Handle
B. Solution Flow Switch I. Key-Operated On-Off Switch
C. Filter Shaker By-pass Switch J. Engine Choke Knob
D. Ammeter K. Circuit Breakers
E. Main Brush Lever L. Vacuum Shut-Off Knob
F. Hour Meter M. Clutch Reverse Handle
G. Start Switch

OPERATION
2Ć7
1186 MM267 (6–94)
CLUTCH HANDLES
The clutch handles control the wheel drive clutch.
To move the machine forward, pull the clutch
handle until the desired speed is reached. To stop
the machine, release the handle.
To move the machine backward, press the clutch
reverse handle. To stop the machine, release the
handle.
SOLUTION FLOW SWITCH
The solution flow switch controls the solution
flow to the floor. To start solution flow to the floor,
flip the switch toggle up. To stop the solution flow
to the floor, flip the switch toggle down.
FILTER SHAKER BY-PASS SWITCH
The filter shaker by-pass switch controls the
automatic filter shaker. When the switch is in the
“on”position, the filter shaker motor will shake the
dust from the filter for 20 seconds when the
machine is turned off. When the switch is in the
“off”position, the filter shaker motor will not shake
the dust from the filter when the machine is turned
off. The switch should be in the “off”position when
servicing the machine or when scrubbing.
AMMETER
The ammeter registers the charging current which
is being passed to the battery by the alternator. It
also registers a discharge of current being used
by the machine when the alternator is not
charging.
MAIN BRUSH LEVER
The main brush lever controls the position of the
main brush. To raise the main brush, pull the lever
up, to the right and back into the (Main
Brush Up) position (lower groove). To lower the
main brush on smooth surfaces, push the lever
forward and pull it back into the (Main Brush
Down) position (top groove). To lower the main
brush on uneven surfaces, push the lever forward,
to the left, and release it into the (Main
Brush Free-Float) position.
When parking the machine, always raise the
brush to prevent the bristles from taking a set.
To increase main brush contact with the floor, turn
the main brush lever to the left. To decrease main
brush contact with the floor, turn the lever to the
right.
C
D
E
B
A
03134
MAIN BRUSH LEVER
A. Main Brush Lever
B. Instrument Panel
C. (Main Brush Up) Position
D. (Main Brush Down) Position
E. (Main Brush Free-Float) Position
HOUR METER
The hour meter records the number of hours the
machine has operated. This information is useful
in determining when to service the machine.
START SWITCH
The start switch controls the engine starter
motor. To start the engine, turn the on-off switch
to the right and push the start switch.
NOTE: Do not engage the starter for more than
ten seconds at a time, or after the engine has
started, as the starter may be damaged.
KEY-OPERATED ON-OFF SWITCH
The key-operated on-off switch has two
positions: off and on. To start the engine, turn the
key fully to the right to the on position. To stop the
engine, turn the key to the left to the off position.

OPERATION
1186 MM267 (6–94)
2Ć8
ENGINE CHOKE KNOB
The engine choke knob controls the engine
choke which helps start cold engines. To engage
the choke, pull the knob out. To disengage the
choke, push the knob in. Do not choke a warm
engine.
CIRCUIT BREAKERS AND FUSES
Circuit breakers are resetable circuit protection
devices designed to stop the flow of current in the
event of a circuit overload. Once tripped, circuit
breakers must be manually reset by pressing the
circuit breaker 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.
The circuit breakers are located on the instrument
panel.
The following chart shows the various circuit
breakers and the electrical components they
protect.
PROTECTIVE
DEVICE RATING CIRCUIT PROTECTED
CB–1 15 A Shaker Motor
CB–2 15 A Hour Meter,
Thermo-Sentry,
Alternator
VACUUM SHUT-OFF KNOB
The vacuum shut-off knob controls the
vacuum to the dust filter. To stop vacuum to the
dust filter, pull the knob out. To vacuumize the
dust filter, push the knob in.
PARKING BRAKE LEVER
The parking brake lever controls the brake
on the front wheel.
To set the parking brake, step on the lever and
release it into the long notch on the left. To
release the parking brake, step on the lever and
release it into the short notch on the right.
Always park on a level surface, stop the engine,
and set the parking brake before leaving the
machine unattended and before working on the
machine.
SQUEEGEE LEVER
The squeegee lever controls the position of the
rear squeegee.
To raise the squeegee, lift the lever into the up
position. To lower the squeegee, lower the lever
into the down position.
SIDE BRUSH ARM
The side brush arm controls the position of
the side brush.
To raise the side brush, pull the lift arm up and
push it back into the raised position. To lower the
side brush, pull the arm forward and release it into
the down position.
When parking the machine, always raise the
brush to prevent the brush bristles from taking a
set.
A
03135
RAISING SIDE BRUSH ARM
A. Side Brush Arm