Tennant 1186E User manual

1186E
MM268
Rev. 05 (12–95)
(Operator Manual)

This manual is furnished with each new TENNANT Model 1186E. 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; Electrical Components; 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 – MM268
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
1186EMM268 (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:
–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: Batteries Emit Hydrogen
Gas. Explosion Or Fire Can Result.
Keep Sparks And Open Flame Away. Keep
Covers Open When Charging.
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
1186EMM268 (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. BATTERY CAUTION LABEL –LOCATED
BETWEEN THE BATTERIES.
06321
FOR SAFETY LABEL –LOCATED ON THE TOP
OF THE SOLUTION TANK.
FLAMMABLE MATERIALS LABEL –
LOCATED ON RIGHT SIDE PANEL.
FLAMMABLE MATERIALS LABEL –LOCATED
ON RIGHT SIDE PANEL. BACK STRAIN LABEL –LOCATED ON THE
UNDERSIDE OF THE FILTER ASSEMBLY.

GENERAL INFORMATION
iii
1186EMM268 (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
BATTERY CONDITION GAUGE 2-7. . .
VOLTMETER 2-7. . . . . . . . . . . . . . . . . . . . . .
MAIN BRUSH LEVER 2-7. . . . . . . . . . . .
HOUR METER 2-7. . . . . . . . . . . . . . . . . .
KEY-OPERATED ON-OFF SWITCH 2-8
CIRCUIT BREAKERS AND FUSES 2-8
VACUUM FAN SWITCH 2-8. . . . . . . . . .
CHARGER TIMER 2-8. . . . . . . . . . . . . . .
CHARGER GAUGE 2-8. . . . . . . . . . . . . .
VACUUM SHUT-OFF KNOB 2-8. . . . . .
CHARGER PANEL 2-8. . . . . . . . . . . . . .
PARKING BRAKE LEVER 2-9. . . . . . . .
SQUEEGEE LEVER 2-9. . . . . . . . . . . . .
SIDE BRUSH ARM 2-9. . . . . . . . . . . . . .
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 2-10. . . . . . . . . . . . . . . . . .
TO DUMP HOPPER 2-10. . . . . . . . . .
POST OPERATION CHECKLIST –
MOTOR OPERATING 2-11. . . . . .
TO STOP MACHINE 2-11. . . . . . . . . .
POST OPERATION CHECKLIST –
MOTOR STOPPED 2-11. . . . . . . .
Page
NORMAL SCRUBBING OPERATION 2-11
PRE-START CHECKLIST 2-11. . . . . .
TO START MACHINE 2-12. . . . . . . . .
TO SCRUB 2-12. . . . . . . . . . . . . . . . . .
TO DRAIN SOLUTION TANK AND
EMPTY DEBRIS HOPPER 2-13. .
POST OPERATION CHECKLIST –
MOTOR OPERATING 2-14. . . . . .
TO STOP MACHINE 2-15. . . . . . . . . .
POST OPERATION CHECKLIST –
MOTOR 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. . . . . . . . . . . . . . . . . . . . .
DRIVE CHAINS 3-6. . . . . . . . . . . . . . . . .
DIFFERENTIAL 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. . . . . . . . . . . . .
ELECTRICAL SYSTEM 3-8. . . . . . . . . . . . .
BATTERIES 3-8. . . . . . . . . . . . . . . . . . . .
BATTERY CHARGING 3-9. . . . . . . . . . .
TO CHARGE BATTERIES
(For machines below serial
number 020916) 3-9. . . . . . . . . . .
TO CHARGE BATTERIES
(For machines serial number
020916 and above) 3-10. . . . . . . . .
ACTIVATING DRY-TYPE
BATTERIES 3-11. . . . . . . . . . . . . . . . .
TO ACTIVATE DRY-TYPE
BATTERIES 3-11. . . . . . . . . . . . . . .
ELECTRIC MOTOR 3-11. . . . . . . . . . . . .
ELECTRICAL SCHEMATIC
(For machines below serial
number 20916) 3-12. . . . . . . . . . . . . . .
ELECTRICAL SCHEMATIC
(For machines serial number
20916 and above) 3-13. . . . . . . . . . . .

GENERAL INFORMATION
1186EMM268 (6–94)
iv
Page
BELTS AND CHAINS 3-14. . . . . . . . . . . . . . .
PROPELLING BELTS 3-14. . . . . . . . . . . .
TO CHECK AND ADJUST
PROPELLING BELTS
TENSION 3-14. . . . . . . . . . . . . . . . .
TO REPLACE PROPELLING
BELTS 3-15. . . . . . . . . . . . . . . . . . .
SIDE BRUSH BELT 3-16. . . . . . . . . . . . . .
TO CHECK AND ADJUST SIDE
BRUSH BELT TENSION 3-16. . . .
TO REPLACE SIDE BRUSH
BELT 3-17. . . . . . . . . . . . . . . . . . . . .
SHORT MAIN BRUSH BELT 3-17. . . . . .
TO REPLACE SHORT MAIN
BRUSH BELT 3-17. . . . . . . . . . . . .
LONG MAIN BRUSH BELT 3-18. . . . . . .
TO REPLACE LONG MAIN
BRUSH BELT 3-18. . . . . . . . . . . . .
VACUUM FAN BELT 3-19. . . . . . . . . . . . .
TO CHECK AND ADJUST VACUUM
FAN BELT TENSION 3-19. . . . . . .
TO REPLACE VACUUM
FAN BELT 3-20. . . . . . . . . . . . . . . .
WHEEL DRIVE CHAINS 3-20. . . . . . . . .
STATIC DRAG CHAIN 3-20. . . . . . . . . . .
BRUSHES 3-21. . . . . . . . . . . . . . . . . . . . . . . . .
MAIN BRUSH 3-21. . . . . . . . . . . . . . . . . . .
TO REMOVE MAIN BRUSH 3-21. . .
TO INSTALL MAIN BRUSH 3-21. . . .
TO CHECK AND ADJUST MAIN
BRUSH PATTERN 3-21. . . . . . . . .
SIDE BRUSH 3-22. . . . . . . . . . . . . . . . . . .
TO REMOVE SIDE BRUSH 3-22. . . .
TO INSTALL SIDE BRUSH 3-23. . . .
TO ADJUST SIDE BRUSH
PATTERN 3-23. . . . . . . . . . . . . . . . .
SKIRTS AND SEALS 3-24. . . . . . . . . . . . . . .
HOPPER LIP SKIRT 3-24. . . . . . . . . . . . .
REAR BRUSH SKIRTS 3-24. . . . . . . . . .
HOPPER TOP SEAL 3-24. . . . . . . . . . . . .
MAIN BRUSH COMPARTMENT
SKIRTS 3-24. . . . . . . . . . . . . . . . . . . . .
DEBRIS HOPPER AND DUST FILTER 3-25
DEBRIS HOPPER 3-25. . . . . . . . . . . . . . .
TO CHECK AND ADJUST HOPPER
FLOOR CLEARANCE 3-25. . . . . .
TO ADJUST DUST FILTER TO
HOPPER SEALING 3-26. . . . . . . .
DUST FILTER 3-26. . . . . . . . . . . . . . . . . . .
TO REMOVE HOPPER DUST
FILTER 3-27. . . . . . . . . . . . . . . . . . .
SOLUTION TANK 3-28. . . . . . . . . . . . . . . . . .
SOLUTION TANK 3-28. . . . . . . . . . . . . . .
TO DRAIN AND CLEAN
SOLUTION TANK 3-28. . . . . . . . . .
Page
REAR SQUEEGEE 3-29. . . . . . . . . . . . . . . . .
REAR SQUEEGEE 3-29. . . . . . . . . . . . . .
TO REMOVE SQUEEGEE
ASSEMBLY 3-29. . . . . . . . . . . . . . .
TO INSTALL SQUEEGEE
ASSEMBLY 3-30. . . . . . . . . . . . . . .
TO REPLACE FRONT
SQUEEGEE BLADE 3-30. . . . . . .
TO REPLACE REAR
SQUEEGEE BLADE 3-31. . . . . . .
TO ADJUST SQUEEGEE 3-32. . . . . .
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 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 –Motor, Sheaves and Cover
Group 6-6. . . . . . . . . . . . . . . . . . . .
Fig. 5 –Battery and Charger Group 6-8. . . . .
Fig. 6 –Brush Drive Group 6-10. . . . . . . . . . . .
Fig. 7 –Sweeper/Scrubber Hopper
Group 6-12. . . . . . . . . . . . . . . . . . .
Fig. 8 –Solution and Recovery Tank
Group 6-14. . . . . . . . . . . . . . . . . . .
Fig. 9 –Rear Squeegee Lift Group 6-16. . . . .
Fig. 10 –Rear Squeegee Group 6-18. . . . . . . .
Fig. 11 –Wheel Drive Group 6-19. . . . . . . . . . .
Fig. 12 –Vacuum Fan Group 6-20. . . . . . . . . . .
Fig. 13 –Scrub Vacuum Fan Group 6-21. . . . .
Fig. 14 –Vacuum Fan Shutoff Group 6-22. . . .
Fig. 15 –Filter and Shaker Motor Group 6-23.
Fig. 16 –Instrument Panel Group 6-24. . . . . . .
Fig. 17 –Label Group 6-25. . . . . . . . . . . . . . . . .
Fig. 18 –Wire Harnesses Group 6-26. . . . . . . .
Fig. 19 –Wire Harnesses Group 6-28. . . . . . . .

GENERAL INFORMATION
v
1186EMM268 (6–94)
Page
OPTIONS 7-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fig. 1 –Hopper Group 7-2. . . . . . . . . . . . . . . . .
Fig. 2 –Side Scrub Brush Kit 7-3. . . . . . . . . . .
Fig. 3 –Battery Kit, Wet 7-4. . . . . . . . . . . . . . .
Fig. 4 –Battery Kit, Dry 7-5. . . . . . . . . . . . . . . .
Fig. 5 –Battery Charger and
Timer Group 7-6. . . . . . . . . . . . . . .
Fig. 6 –Battery Charger Group 7-7. . . . . . . . .
Fig. 7 –Battery Charger Group 7-8. . . . . . . . .
Fig. 8 –Dual Caster Group 7-9. . . . . . . . . . . . .
Fig. 9 –Fire Extinguisher Kit 7-10. . . . . . . . . . .
Fig. 10 –Battery Gauge Kit 7-11. . . . . . . . . . . .
Fig. 11 –Double Wheel Kit 7-12. . . . . . . . . . . . .
Fig. 12 –Fine Particle Filter Kit 7-13. . . . . . . . .
Fig. 13 –Lift and Tie–Down Kit 7-14. . . . . . . . .
ELECTRICAL COMPONENTS 8-1. . . . . . . . . . .
Fig. 1 –Motor Breakdown 8-2. . . . . . . . . . .
CROSS REFERENCE 9-1. . . . . . . . . . . . . . . . . .
PART NUMBER TO PAGE NUMBER
CROSS REFERENCE LIST 9-2. . . . . . .

GENERAL INFORMATION
1186EMM268 (6–94)
vi

SPECIFICATIONS
1Ć1
1186E MM268 (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
1186E MM268 (6–94)
1Ć2

SPECIFICATIONS
1Ć3
1186E MM268 (6–94)
MACHINE SPECIFICATIONS
POWER TYPE
Electric propelling motor –nominal voltage
24 VDC, 1.0 hp (0.7 kw) @ 2000 rpm, 40 A
Batteries (2) –12 V, 140 A/h @ 20 hour rate
Battery charger –24 VDC, 15 A, 120 VAC input
Battery charger –24 VDC, 15 A, 115/230 VAC
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
Scrub vacuum fan water pick-up –electric motor
driven
SUSPENSION SYSTEM
Front –10 x 2.00 zero pressure tires (2)
Rear –5 x 1.5 caster (1)
SYSTEM FLUID CAPACITIES
Scrub 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 –840 lb (381 kg)
GENERAL MACHINE PERFORMANCE
Maximum forward speed –2.9 mph (4.7 km/h)
Maximum reverse speed –2.8 mph (4.5 km/h)
Turning radius –65 in (1650 mm)

SPECIFICATIONS
1186EMM268 (6–94)
1Ć4
MACHINE DIMENSIONS
SIDE VIEW
TOP VIEW
36 in
(915 mm)
58 in (1475 mm)
38 in
(965 mm)
06404

OPERATION
2Ć1
1186EMM268 (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. .
BATTERY CONDITION GAUGE 2-7. . . . . .
VOLTMETER 2-7. . . . . . . . . . . . . . . . . . . . . . .
MAIN BRUSH LEVER 2-7. . . . . . . . . . . . . . . .
HOUR METER 2-7. . . . . . . . . . . . . . . . . . . . . .
KEY-OPERATED ON-OFF SWITCH 2-8. . .
CIRCUIT BREAKERS AND FUSES 2-8. . . .
VACUUM FAN SWITCH 2-8. . . . . . . . . . . . . .
CHARGER TIMER 2-8. . . . . . . . . . . . . . . . . .
CHARGER GAUGE 2-8. . . . . . . . . . . . . . . . .
VACUUM SHUT-OFF KNOB 2-8. . . . . . . . . .
CHARGER PANEL 2-8. . . . . . . . . . . . . . . . . .
PARKING BRAKE LEVER 2-9. . . . . . . . . . . .
SQUEEGEE LEVER 2-9. . . . . . . . . . . . . . . . .
SIDE BRUSH ARM 2-9. . . . . . . . . . . . . . . . . .
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 2-10. . . . . . . . . . . . . . . . . . . . . .
TO DUMP HOPPER 2-10. . . . . . . . . . . . . .
POST OPERATION CHECKLIST –
MOTOR OPERATING 2-11. . . . . . . . . .
TO STOP MACHINE 2-11. . . . . . . . . . . . . .
POST OPERATION CHECKLIST –
MOTOR STOPPED 2-11. . . . . . . . . . . .
Page
NORMAL SCRUBBING OPERATION 2-11. .
PRE-START CHECKLIST 2-11. . . . . . . . .
TO START MACHINE 2-12. . . . . . . . . . . . .
TO SCRUB 2-12. . . . . . . . . . . . . . . . . . . . . .
TO DRAIN SOLUTION TANK AND
EMPTY DEBRIS HOPPER 2-13. . . . . .
POST OPERATION CHECKLIST –
MOTOR OPERATING 2-14. . . . . . . . . .
TO STOP MACHINE 2-15. . . . . . . . . . . . . .
POST OPERATION CHECKLIST –
MOTOR STOPPED 2-15. . . . . . . . . . . .
DOUBLE SCRUBBING OPERATION 2-15. .
OPERATION ON GRADES 2-15. . . . . . . . . . .
MACHINE TROUBLESHOOTING 2-16. . . . .
TRANSPORTING MACHINE 2-18. . . . . . . . . . . .
MACHINE TIE-DOWNS 2-18. . . . . . . . . . . . . .
MACHINE STORAGE 2-19. . . . . . . . . . . . . . . . . .
STORING MACHINE 2-19. . . . . . . . . . . . . . . .

OPERATION
1186E MM268 (6–94)
2Ć2

OPERATION
2Ć3
1186E MM268 (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 batteries. If they are of the
wet-type, check the electrolyte level. If they
are of the dry-type, activate them as
described in ACTIVATING DRY-TYPE
BATTERIES in the MAINTENANCE section.
A
B
00879
CHECKING BATTERY ELECTROLYTE LEVEL
A. Battery
B. Electrolyte Indicator Ring
FOR SAFETY: When Servicing Machine, Avoid
Contact With Battery Acid.
4. Check the battery specific gravity to
determine the state of charge as described
in BATTERIES in the MAINTENANCE
section. Charge the batteries if necessary.
5. Connect the batteries-to-machine connector.
A
B
03177
CONNECTING BATTERIES-TO-MACHINE
CONNECTOR
A. Machine Connector
B. Batteries Connector
6. Check the main brush adjustment. See
BRUSHES in the MAINTENANCE section.

OPERATION
1186EMM268 (6–94)
2Ć4
OPERATION OF CONTROLS
A
B
C
D
E
F
G
I
J
K
L
M
N
O
P
06321
06322
MACHINE COMPONENTS
A. Clutch Handle I. Instrument Panel
B. Stationary Handle J. Solution Tank Cover
C. Left 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. Right Access Cover P. Parking Brake Lever

OPERATION
2Ć5
1186EMM268 (6–94)
INSTRUMENT PANEL SYMBOLS
The symbols are used to identify controls and
displays on the machine:
Filter Shaker
Circuit Breaker No. 3
Fan
Main Brush Free-Float
Main Brush Down
Main Brush Up
Circuit Breaker No. 1
Circuit Breaker No. 2
Vacuum Shut-Off
Key Switch
Solution Flow
Parking Brake
Side Brush
Interrupt Switch
Battery Charger Interrupt
Battery Charger
Battery

OPERATION
1186EMM268 (6–94)
2Ć6
K
L
J
A
G
C
D
B
F
IEMN II
(For machines serial number 020000
to 020915) (For machines serial number 020196 and above)
O
06318
03197
07128
CONTROLS AND INSTRUMENTS
A. Stationary Handle I. Circuit Breakers
B. Solution Flow Switch J. Vacuum Fan Switch
C. Filter Shaker By-Pass Switch K. Charger Timer
D. Battery Condition Gauge/Voltmeter L. Charger Gauge
E. Main Brush Lever M. Vacuum Shut-Off Knob
F. Hour Meter N. Clutch Reverse Handle
G. Key-Operated On-Off Switch O. Charger Panel
H. Clutch Handle

OPERATION
2Ć7
1186EMM268 (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.
BATTERY CONDITION GAUGE
The battery condition gauge is an option on
machines below serial number 020916. It
indicates the present state of charge of the
batteries. The display should be on the F mark of
the gauge when the batteries are fully charged.
As the batteries discharge, the display will move
down near the E mark and flash. The batteries
should be recharged when the display gets to the
1/4 mark.
VOLTMETER
The voltmeter indicates the present state of
charge of the batteries. The needle should be in
the white zone when the batteries are fully
charged. As the batteries discharge, the needle
will move into the green zone. The batteries
should be recharged when the needle consistently
stays in the red zone.
NOTE: Do not charge the batteries more often
than is necessary. This will prolong the life of the
batteries. Do not allow the batteries to become
fully discharged as this will also damage the
batteries. See BATTERIES in the
MAINTENANCE section.
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)“normal”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.
A
E
C
D
B
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.

OPERATION
1186EMM268 (6–94)
2Ć8
KEY-OPERATED ON-OFF SWITCH
The key-operated on-off switch has two
positions: off and on. To turn the machine on, turn
the key fully to the right to the on position. To turn
off the machine, turn the key to the left to the off
position.
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.
Fuses are a one-time circuit protection device
designed to stop the flow of current in the event of
a circuit overload. Never substitute higher value
fuses than those specified in this manual.
The circuit breakers are located on the instrument
panel. The fuse is located behind the hopper on
the main frame.
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
CB–3 17.5 A Vacuum Fan Motor
FU–1 60 A Motor
VACUUM FAN SWITCH
The vacuum fan switch controls the vacuum
fan when scrubbing. To start the vacuum fan, flip
the switch toggle up. To stop the fan, flip the
switch toggle down.
CHARGER TIMER
The charger timer controls the battery charger. To
start the battery charger, turn the timer knob to
the number of hours you wish to charge the
batteries. The timer will automatically stop the
charger.
WARNING: Batteries Emit Hydrogen
Gas. Explosion Or Fire Can Result.
Keep Sparks And Open Flame Away. Keep
Covers Open When Charging.
CHARGER GAUGE
The charger gauge indicates the level of charge
being passed to the batteries. The gauge needle
should be in the green area when charging and in
the black area when done.
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.
CHARGER PANEL
The charger panel indicates battery charging
status on machines serial number 006823 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