Tennant 1550 User manual

1550
*MM283*
Rider Scrubber
Manual
MM283
Rev. 23 (12-2013)
North America / International
(Gas/LPG/Diesel)
TennantTrueRParts
For the latest Parts manuals and other
language Operator manuals, visit:
www.tennantco.com/manuals

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 including
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.
SRS is a US registered trademark of Tennant Company.
Specifications and parts are subject to change without notice.
Original instructions, Copyright E1991--2002, 2005--2008, 2010, 2011, 2013 TENNANT Company, Printed in U.S.A.

GENERAL INFORMATION
i
1550 Gas/LPG/Diesel MM283 (3--11)
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.
CAUTION: To warn of unsafe practices
that could result in minor or moderate
personal injury.
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: 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: Machine Can Emit Excessive
Noise. Consult With Your Regulatory
Agency For Exposure Limits. Hearing
Loss Can Result. Wear Hearing
Protection.
WARNING: Flammable Materials Can
Cause An Explosion Or Fire. Do Not
Pick Up Flammable Materials. Do Not
Use Flammable Materials In Tank To
Clean Floor.
WARNING: Flammable materials or
reactive metals can cause explosion or
fire. Do not pick up.
WARNING: Moving Belt. Keep Away.
WARNING: Moving Fan Blades. Keep
Away.
WARNING: Raised Scrub Head May Fall.
Block Scrub Head Up.
WARNING: Crush Hazard Between Front
And Rear Halves Of Machine. Engage
Pivot Lock.
WARNING: Heavy LP Tank May Fall.
Remove LP Tank Before Opening Cover.
WARNING: Strong Vacuum. Keep Away
From Fan Inlet When Fan Is Running.
CAUTION: LPG engine will run for a few
seconds after key is turned off. Apply
parking brake before leaving machine.
FOR SAFETY:
1. Do Not Operate Machine:
-- Unless Trained And Authorized.
-- Unless Operation Manual Is Read And
Understood.
-- Unless mentally and physically
capable of following machine
instructions.
-- 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.
-- Check Brakes And Steering For Proper
Operation.
3. When Starting Machine:
-- Keep Foot On Brake And Directional
Pedal In Neutral.
4. When Using Machine:
-- Use Brakes To Stop 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.
-- Report Machine Damage of Faulty
Operation Immediately.
-- Follow mixing, handling and disposal
instructions on chemical containers.
-- Follow safety guidelines concerning
wet floors.

GENERAL INFORMATION
1550 Gas/LPG/Diesel MM283 (3--11)
ii
5. Before Leaving Or Servicing Machine:
-- Stop On Level Surface.
-- Set Parking Brake.
-- Turn Off Machine And Remove Key.
6. When Servicing Machine:
-- AvoidMovingParts.DoNotWear
Loose Jackets, Shirts, Or Sleeves.
-- Block Machine Tires Before Jacking
Machine Up.
-- Jack Machine Up At Designated
Locations Only. Block Machine Up
With Jack Stands.
-- Use A 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.
-- Avoid Contact With Hot Engine
Coolant.
-- Allow Engine To Cool.
-- Keep Flames And Sparks Away From
Fuel System Service Area. Keep Area
Well Ventilated.
-- Use Cardboard To Locate Leaking
Hydraulic Fluid Under Pressure.
-- Use TENNANT Supplied Or Approved
Replacement Parts.
7. When loading/unloading machine
onto/off truck or trailer:
-- Turn off machine.
-- Use truck or trailer that will support
the weight of the machine.
-- Use winch. Do not drive the machine
onto/off the truck or trailer unless the
load height is 380 mm (15 in) or less
from the ground.
-- Set parking brake after machine is
loaded.
-- Block machine tires.
-- Tie machine down to truck or trailer.

GENERAL INFORMATION
iii
1550 Gas/LPG/Diesel MM283 (3--11)
The following safety decals are mounted on the
machine in the locations indicated. If these, or any
decal becomes damaged or illegible, install a new
decal in its place.
TRAVEL SPEED CAUTION DECAL --
LOCATED ON THE SIDE OPERATOR
PANEL
SCRUB HEAD LOCK WARNING DECAL
-- LOCATED ON THE SCRUB HEAD
FAN SUCTION DANGER DECAL --
LOCATED ON THE SOLUTION TANK
00291
LPG ENGINE WILL RUN LABEL -- LOCATED
NEXT TO THE IGNITION SWITCH ON THE
INSTRUMENT PANEL.

GENERAL INFORMATION
1550 Gas/LPG/Diesel MM283 (11--07)
iv
03784
ENGINE FAN WARNING DECAL --
LOCATED ON THE FAN SHROUD
00291
03788
PINCH SPACE DANGER
DECAL -- LOCATED ON THE
SOLUTION TANK
HEAVY LP TANK WARNING
DECAL -- LOCATED ON THE
LEFT SIDE TOP ACCESS
DOOR LIP
FLAMMABLE MATERIALS WARNING
DECAL -- LOCATED IN THE
OPERATOR COMPARTMENT
FLAMMABLE MATERIALS WARNING DECAL --
LOCATED ON THE SOLUTION TANKS

GENERAL INFORMATION
v
1550 Gas/LPG/Diesel MM283 (2--05)
CONTENTS
Page
GENERAL INFORMATION i..................
SAFETY PRECAUTIONS i................
SPECIFICATIONS 1-1.......................
MACHINE SPECIFICATIONS 1-3...........
POWER TYPE 1-3.....................
GAS/LPG CONTINENTAL ENGINES --
(For machines below serial
number 001424) 1-3...........
GAS/LPG GM ENGINES -- (For
machines serial number 001424 and
above) 1-3....................
DIESEL CONTINENTAL ENGINES --
(For machines below serial
number 001424) 1-3...........
DIESEL PERKINS ENGINES --
(For machines serial number
001424 -- 001505) 1-3..........
CAT ENGINES -- (For machines serial
number 001508 and above) 1-4....
POWER TRAIN 1-4....................
STEERING 1-4........................
BRAKING SYSTEM 1-4................
SUSPENSION SYSTEM 1-4............
SYSTEM FLUID CAPACITIES 1-4.......
CONTINENTAL ENGINES (For
machines below serial number
001424) 1-4..................
GAS/LPG GM ENGINES (For machines
serial number 001424 -- 001505) 1-4
GAS/LPG GM ENGINES (For machines
serial number 001508 and above) 1-4
DIESEL PERKINS ENGINES (For
machines serial number
001424 -- 001505) 1-4..........
DIESEL CAT ENGINES (For machines
serial number 001508 and above) 1-4
GENERAL MACHINE
DIMENSIONS/CAPACITIES 1-5......
MACHINE WEIGHTS 1-5...............
GENERAL MACHINE PERFORMANCE 1-5
MACHINE DIMENSIONS 1-6...............
OPERATION 2-1............................
PREPARATION FOR OPERATION 2-3......
AFTER UNLOADING AND BEFORE
OPERATING THE MACHINE: 2-3.....
OPERATION OF CONTROLS 2-4..........
MACHINE COMPONENTS 2-4..........
INSTRUMENTS AND CONTROLS --
GAS/LPG and DIESEL ENGINES (For
machines below serial number
001508) 2-5..................
INSTRUMENTS AND CONTROLS --
GAS/LPG GM ENGINES (For machines
serial number 001508 and above) 2-6
Page
INSTRUMENTS AND CONTROLS --
DIESEL CAT ENGINES (For machines
serial number 001508 and above) 2-7
BRAKE PEDAL 2-8....................
DIRECTIONAL PEDAL 2-8..............
OPERATOR SEAT 2-8..................
SCRUB HEAD LOCK LEVER 2-8........
PIVOT LOCK PIN 2-9..................
PARKING BRAKE LEVER 2-9...........
AMMETER (For machines below serial
number 001508) 2-9.................
CHARGING SYSTEM LIGHT (For
machines serial number 001508
and above) 2-9...................
SQUEEGEE POSITION LAMP (For
machines below serial number
001508) 2-9.....................
CHECK ENGINE LIGHT (For machines
serial number 001508 and above) 2-9..
IGNITION SWITCH 2-9.................
DIESEL PRE-HEAT INDICATING
LAMP 2-10.........................
OPERATING LIGHTS SWITCH
(OPTION) 2-10.....................
ROTATING LIGHT SWITCH
(OPTION) 2-10.....................
HAZARD LIGHT SWITCH (OPTION) 2-10.
FUEL LEVEL GAUGE 2-10..............
PANEL LAMP (OPTION) 2-10...........
SCRUB BRUSH PRESSURE LAMP
(OPTION) 2-10.....................
ENGINE HOUR METER 2-10............
FUSES (For machines below serial
number 001508) 2-10................
FUSES (For machines serial number
001508 and above) 2-10.............
GAS/LPG GM ENGINES 2-10........
DIESEL CAT ENGINES 2-10.........
CIRCUIT BREAKERS (For machines serial
number 001508 and above) 2-11......
ENGINE OIL PRESSURE GAUGE --
DIESEL,GAS/LPG CONTINENTAL
ENGINES (For machines below
serial number 001424) 2-11.....
ENGINE OIL PRESSURE GAUGE --
GAS/LPG ENGINES (For machines
serial number 001424 -- 001505) 2-11
ENGINE OIL PRESSURE GAUGE --
DIESEL PERKINS ENGINES (For
machines serial number 001424 --
001505) 2-11.................
ENGINE OIL PRESSURE LIGHT --
GAS/LPG GM ENGINES (For machines
serial number 001508 and
‘ above) 2-11...................

GENERAL INFORMATION
1550 Gas/LPG/Diesel MM283 (2--06)
vi
Page
ENGINE OIL PRESSURE LIGHT --
DIESEL CAT ENGINES (For machines
serial number 001508 and
above) 2-11...................
ENGINE COOLANT TEMPERATURE
GAUGE 2-11.......................
SQUEEGEE SWITCH 2-12..............
SCRUB BRUSH LEVER 2-12............
SCRUB HEAD POSITION LEVER 2-12...
SRS LIQUID LOW LEVEL LAMPS 2-12...
SRS CLEANING SOLUTION FLOW
KNOB 2-12......................
ENGINE CHOKE KNOB -- CONTINENTAL
ENGINES 2-12.....................
THROTTLE LEVER -- DIESEL, GAS/LP
CONTINENTAL ENGINES (For
machines serial number 001000 --
001423) 2-13.................
THROTTLE LEVER -- DIESEL CAT
ENGINES (For machines serial number
001508 and above) 2-13...........
THROTTLE SWITCH -- DIESEL PERKINS
ENGINES (For machines serial number
001424 -- 001505) 2-13............
THROTTLE SWITCH -- GAS/LPG GM
ENGINES (For machines serial number
001508 and above) 2-13...........
STEERING WHEEL 2-13...............
HORN BUTTON (For machines serial
number 001508 and above) 2-13......
TANK DRAIN LAMP 2-13...............
SOLUTION LEVER 2-13................
MACHINE OPERATION 2-14...............
NORMAL SCRUBBING OPERATION 2-14
PRE-START CHECKLIST 2-14........
TO START MACHINE 2-14...........
TO FILL SOLUTION TANK 2-15.......
TO SCRUB 2-15....................
TO DRAIN AND CLEAN SOLUTION
TANK AND EMPTY HOPPER 2-16.
POST OPERATION CHECKLIST --
ENGINE OPERATING 2-16........
TO STOP MACHINE 2-16............
POST OPERATION CHECKLIST --
ENGINE STOPPED 2-17..........
DOUBLE SCRUBBING OPERATION 2-17
SOLUTION PICKUP OPERATION 2-17...
OPERATION ON GRADES 2-17.........
MACHINE TROUBLESHOOTING 2-18...
OPTIONS OPERATION 2-19...............
VACUUM WAND 2-19..................
TO OPERATE VACUUM WAND 2-19..
DRAIN PUMP 2-19..................
TOWING AND TRANSPORTING THE
MACHINE 2-20........................
TOWING THE MACHINE 2-20........
TRANSPORTING THE MACHINE 2-20
MACHINE JACKING LOCATIONS 2-23
Page
MACHINE STORAGE 2-24.................
STORING MACHINE 2-24..............
GASOLINE POWERED
MACHINES 2-24.................
DIESEL POWERED MACHINES 2-26
.
MAINTENANCE 3-1.........................
RECOMMENDED FIRST 50-HOUR
MACHINE INSPECTION 3-3............
MAINTENANCE CHART 3-4...............
LUBRICATION 3-6........................
ENGINE 3-6...........................
GASOLINE AND LPG POWERED
ENGINES 3-6....................
DIESEL POWERED ENGINES 3-6....
VACUUM FAN SHAFT -- GAS/LPG
ENGINES (For machines below
serial number 001508) 3-6......
VACUUM FAN SHAFT -- DIESEL
ENGINES (For machines serial
number 001000 and above) 3-6.
MACHINE PIVOT 3-7................
SCRUB HEAD PIVOT 3-7............
SCRUB HEAD HINGES 3-8..........
REAR SQUEEGEE CASTERS 3-8....
SCRUB BRUSH IDLER PLUGS 3-8...
REAR WHEELS 3-8.................
HYDRAULICS 3-9........................
HYDRAULIC FLUID 3-9................
HYDRAULIC FLUID RESERVOIR 3-9....
TO DRAIN THE HYDRAULIC FLUID
RESERVOIR 3-10................
TO FILL THE HYDRAULIC FLUID
RESERVOIR 3-10................
HYDRAULIC FLUID RESERVOIR
BREATHER 3-11....................
HYDRAULIC FLUID FILTER 3-11........
TO REPLACE THE HYDRAULIC FLUID
FILTER ELEMENT 3-11...........
HYDRAULIC FLUID LEAKS 3-11........
HYDRAULIC COMPONENTS
TROUBLESHOOTING 3-12..........
ENGINE 3-13............................
LUBRICATION 3-13....................
GASOLINE AND LPG POWERED
ENGINES 3-13...................
DIESEL POWERED ENGINES 3-13...
COOLING SYSTEM 3-13...............
AIR INTAKE SYSTEM 3-14.............
AIR FILTER SERVICE INDICATOR 3-14
AIR FILTER 3-14....................
TO REPLACE AIR FILTER ELEMENT --
CONTINENTAL ENGINES (For
machines below serial number
001424) 3-15...............

GENERAL INFORMATION
vii
1550 Gas/LPG/Diesel MM283 (2--05)
Page
TO REPLACE AIR FILTER ELEMENT --
GM GAS/LPG AND PERKINS OR
CAT DIESEL ENGINES (For
machines serial number
001424 and above) 3-16.....
FUEL SYSTEM -- GASOLINE --
CONTINENTAL ENGINES (For
machines below serial number
001424) 3-17.................
FUEL FILTER 3-17...............
CARBURETOR 3-17..............
FUEL SYSTEM -- GASOLINE -- GM
ENGINES (For machines serial number
001424 and above) 3-17...........
FUEL FILTER (For machines serial
number 001000 -- 001505) 3-17.
IN--LINE FUEL FILTER 3-17.......
ELECTRONIC FUEL INJECTION --
GM ENGINES 3-17............
FUEL SYSTEM -- LPG 3-18.............
LPG FUEL SYSTEM 3-18............
IN--LINE FUEL FILTER --GM ENGINES
(For machines serial number 001424
and above) 3-18...............
FUEL TANKS 3-19..................
TO CHANGE AN LPG FUEL TANK 3-20
FUEL FILTER LOCK 3-21............
VAPORIZER-REGULATOR 3-21......
CARBURETOR -- CONTINENTAL
ENGINES (For machines below
serial number 001424) 3-21.....
ELECTRONIC FUEL INJECTION
SYSTEM -- GM ENGINES (For
machines serial number 001424
and above) 3-21............
OIL PRESSURE SWITCH 3-21.......
LPG FUEL TROUBLESHOOTING 3-22
FUEL SYSTEM -- DIESEL 3-23..........
FUEL WATER TRAP 3-23............
TO CLEAN WATER TRAP 3-23....
FUEL FILTER 3-23..................
TO REPLACE FUEL FILTER --
CONTINENTAL ENGINES (For
machines between serial
number 001000--001055) 3-23
TO REPLACE FUEL FILTER --
CONTINENTAL ENGINES (For
machines between serial
number 001056--001423) 3-24
TO REPLACE FUEL FILTER --
PERKINS ENGINES (For
machines serial number
001424 -- 001505) 3-24......
WATER SEPARATOR/FUEL FILTER
CAT ENGINES (For machines
serial number 001508
and above) 3-25............
Page
IN--LINE FUEL FILTER -- PERKINS
ENGINES (For machines serial
number 001424 --
001505) 3-25...............
FUEL INJECTION PUMP 3-25........
FUEL INJECTORS 3-25.............
PRIMING THE FUEL SYSTEM --
CONTINENTAL ENGINES (For
machines serial number
001000--001055) 3-26.......
PRIMING THE FUEL SYSTEM --
CONTINENTAL ENGINES (For
machines serial number
001056--001423) 3-27.......
PRIMING THE FUEL SYSTEM --
PERKINS ENGINES (For machines
serial number 001424 --
001505) 3-27...............
GOVERNOR -- GAS/LPG
CONTINENTAL ENGINES (For
machines serial number
001000--001423) 3-28.......
TO ADJUST GOVERNOR 3-29.......
GOVERNOR -- GAS/LPG GM
ENGINES (For machines serial
number 001424 and above) 3-29
ELECTRICAL SYSTEM 3-30............
SPARK PLUGS 3-30................
DISTRIBUTOR 3-30.................
DISTRIBUTOR IGNITION TIMING 3-31
CYLINDER HEAD -- GASOLINE, LPG 3-32
CYLINDER HEAD BOLT TIGHTENING
CONTINENTAL ENGINES (For
machines below serial number
001424) 3-32...............
VALVE TAPPET CLEARANCE 3-32...
CYLINDER HEAD BOLT TIGHTENING
-- GM ENGINES (For machines serial
number 001424 and above) 3-32
CYLINDER HEAD -- DIESEL 3-33........
CYLINDER HEAD BOLT TIGHTENING
CONTINENTAL ENGINES (For
machines below serial number
001424) 3-33...............
CYLINDER HEAD BOLT TIGHTENING
PERKINS ENGINES (For machines
serial number 001424 --
001505) 3-33...............
VALVE TAPPET CLEARANCE 3-34...
PCV SYSTEM 3-34....................
TUNE-UP CHART -- GASOLINE, LPG
CONTINENTAL ENGINES (For
machines below serial number
001424) 3-34.................
TUNE-UP CHART -- GASOLINE, LPG GM
ENGINES (For machines serial number
001424 and above) 3-34...........

GENERAL INFORMATION
1550 Gas/LPG/Diesel MM283 (8--08)
viii
Page
ELECTRICAL SYSTEM 3-35...............
BATTERY 3-35........................
BELTS AND CHAINS 3-36.................
VACUUM FAN DRIVE BELT -- GAS/LPG
ENGINES (For machines below serial
number 001508) 3-36.............
VACUUM FAN DRIVE BELT -- DIESEL
ENGINES (For machines serial number
001000 and above) 3-36...........
TO ADJUST VACUUM FAN DRIVE
BELT 3-36.......................
ALTERNATOR AND RADIATOR FAN
BELT 3-36..........................
TO ADJUST ALTERNATOR AND
RADIATOR FAN BELT 3-36........
SCRUB HEAD 3-37.......................
SCRUB HEAD 3-37....................
TO ADJUST SCRUB HEAD
HEIGHT 3-37....................
TO ADJUST SCRUB BRUSH
PATTERN 3-37...................
SCRUB BRUSHES 3-39................
TO REPLACE SCRUB BRUSHES 3-39
SOLUTION SYSTEM 3-41.................
SRS WATER SPRAY DEFLECTOR 3-41..
SRS SOLUTION TANK 3-42.............
SRS METERING SOLUTION PUMP3-43
TROUBLESHOOTING 3-43.............
SQUEEGEES 3-44........................
SIDE SQUEEGEES 3-44...............
SCRUB HEAD REAR SQUEEGEES 3-44.
REAR SQUEEGEE 3-45................
TO REPLACE REAR SQUEEGEE
BLADES 3-45.................
TO FACTORY ADJUST REAR
SQUEEGEE 3-46................
TO ADJUST REAR SQUEEGEE 3-48.
BRAKES AND TIRES 3-50.................
SERVICE BRAKES 3-50................
PARKING BRAKES 3-51................
TIRES 3-51...........................
OPTIONS 3-52...........................
DRAIN PUMP 3-52.....................
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..................
HYDRAULIC FITTING INFORMATION 4-4...
HYDRAULIC TAPERED PIPE FITTING
(NPT) TORQUE CHART 4-4..........
HYDRAULIC TAPERED SEAT FITTING
(JIC) TORQUE CHART 4-4...........
HYDRAULIC O-RING FITTING TORQUE
CHART 4-4......................
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 MODEL PARTS 6-1..............
Fig. 1 -- Recommended General
Maintenance Items 6-3...........
Fig. 2 -- Replacement Brushes 6-7..........
Fig. 3 -- Main Frame Group
(001000--001505) 6-8............
Fig. 4 -- Main Frame Group
001508-- ) 6-10.............
Fig. 5 -- Main Frame Cover and Door
Group (001508-- ) 6-12......
Fig. 6 -- Main Frame Noise Insulation
Group (001000--001505) 6-14.....
Fig. 7 -- Seat Group 6-15...................
Fig. 8 -- Scrub Head Lift Group 6-16.........
Fig. 9 -- Scrub Head Hopper Group 6-18.....
Fig. 10 -- Scrub Head Rear Squeegee
Group 6-19.....................
Fig. 11 -- Scrub Head Right Side
Squeegee Assembly 6-20.........
Fig. 12 -- Scrub Head Left Side
Squeegee Assembly 6-22.........
Fig. 13 -- Scrub Head Solution Control
Group 6-24.....................
Fig. 14 -- Scrub Head Front Brush Drive
Components Group 6-26..........
Fig. 15 -- Scrub Head Front Brush Idler
Assembly 6-28..................
Fig. 16 -- Scrub Head Rear Brush Idler
Assembly 6-29..................
Fig. 17 -- Scrub Head Rear Brush Drive
Components Group 6-30..........
Fig. 18 -- Steering Column Group
(001000--001505) 6-32...........
Fig. 19 -- Steering Column Group,
Gas/LPG (001508-- ) 6-33...
Fig. 20 -- Tire and Wheel Assembly 6-34.....
Fig. 21 -- Rear Axle Group 6-35.............
Fig. 22 -- Front Wheel Drive Group 6-36......
Fig. 23 -- Hydraulic Directional Pedal
Group (001000--001103) 6-38.....
Fig. 24 -- Hydraulic Directional Pedal Group
Gas/LPG (001104-- ) 6-40...
Fig. 25 -- Front Wheel Parking Brake
Group 6-42.....................
Fig. 26 -- Brakes Group 6-43................
Fig. 27 -- Engine Group, Gas
(001000--001423) 6-44...........
Fig. 28 -- Engine Group, Gas/LPG
(001424--001505) 6-46...........
Fig. 29 -- Engine Group, Gas/LPG
(001508-- ) 6-48............
Fig. 30 -- Engine Alternator Group,
Gas/LPG (001424--001505) 6-50...

GENERAL INFORMATION
ix
1550 Gas/LPG/Diesel MM283 (3--11)
Page
Fig. 31 -- Engine Alternator Group,
Gas/LPG (001508--001537) 6-52...
Fig. 32 -- Engine Alternator Group, Gas/LPG
(001538-- ) 6--54...........
Fig. 33 -- Engine EFI Group, Gas
(001424--001505) 6--56.........
Fig. 34 -- Engine EFI Group, Gas
(001508--001537) 6--58.........
Fig. 35 -- Engine EFI Group, Gas
(001538-- ) 6--60...........
Fig. 36 -- Engine Muffler Group
(001000--001423) 6--62.........
Fig. 37 -- Engine Muffler Group, Gas/LPG
(001424--001505) 6--64.........
Fig. 38 -- Engine Muffler Group, Gas/LPG
(001508--001537) 6--66.........
Fig. 39 -- Engine Muffler Group, Gas/LPG
(001538-- ) 6--68...........
Fig. 40 -- Engine Oil Filter and Drain Group,
Gas/LPG (001424-- ) 6--70
Fig. 41 -- Engine Radiator and Hydraulic
Cooler Group
(001000--001423) 6--72.......
Fig. 42 -- Engine Radiator and Hydraulic
Cooler Group, Gas/LPG
(001424--001505) 6--74.......
Fig. 43 -- Engine Radiator and Hydraulic
Cooler Group, Gas/LPG
(001508-- ) 6--76.......
Fig. 44 -- Engine Fan and Pulley Group,
Gas/LPG (001424--001505) 6--78.
Fig. 45 -- Engine Air Cleaner Group, Gas
(001000--001402) 6--80.........
Fig. 46 -- Engine Air Cleaner Group, Gas
(001403--001423) 6--81.........
Fig. 47 -- Engine Air Cleaner Group, Gas/LPG
(001424--001505) 6--82.........
Fig. 48 -- Engine Air Cleaner Group, Gas
(001508-- ) 6--84..........
Fig. 49 -- Engine Fuel Tank Group, Gas
(001000--001423) 6--86.........
Fig. 50 -- Engine Fuel Tank Group, Gas
(001424--001505) 6--88.........
Fig. 51 -- Engine Fuel Tank Group, Gas
(001508--001537) 6--90.........
Fig. 52 -- Engine Fuel Tank Group, Gas
(001538-- ) 6--92..........
Fig. 53 -- Engine Battery Group, Gas/LPG6--94
Fig. 54 -- Electrical Schematic, Gas/LPG
(001000--001423) 6--95.........
Fig. 55 -- Electrical Schematic, Options
(001000--001505) 6--96.........
Fig. 56 -- Electrical Schematic, Specials
(001000--001505) 6--97.........
Fig. 57 -- Electrical Schematic, Gas/LPG
(001424--001505) 6--98.........
Fig. 58 -- Electrical Schematic, Gas/LPG
(001508--001537) 6--102.........
Page
Fig. 59 -- Electrical Schematic
(001538-- ) 6--107...........
Fig. 60 -- Electrical Wiring Diagram, Instrument
Panel (001508 ) 6--113........
Fig. 61 -- Electrical Wire Harnesses Group
(001000--001505) 6--116..........
Fig. 62 -- Electrical Wire Harnesses Group,
Gas/LPG (001508-- ) 6--120...
Fig. 63 -- Instrument Panel Group, Gas/LPG
(001000--001505) 6--132..........
Fig. 64 -- Instrument Panel Group, Gas
(001508-- ) 6--134...........
Fig. 65 -- SRS Control Panel Assembly 6--136.
Fig. 66 -- Hydraulic Schematic
(001000--001103) 6--137...........
Fig. 67 -- Hydraulic Schematic
(001104--001505) 6--138...........
Fig. 68 -- Hydraulic Schematic, Gas/LPG
(001508-- ) 6--140...........
Fig. 69 -- Hydraulic Hoses Group
(001000--001103) 6--142...........
Fig. 70 -- Hydraulic Hoses Group
(001104--001505) 6--144...........
Fig. 71 -- Hydraulic Hoses Group, Gas/LPG
(001508-- ) 6--146...........
Fig. 72 -- Hydraulic Propelling Motors
Group 6--150....................
Fig. 73 -- Hydraulic Reservoir Group
(001000--001505) 6--149..........
Fig. 74 -- Hydraulic Reservoir Group
Gas/LPG (001508-- ) 6--150..
Fig. 75 -- Hydraulic Control Valves Group
(001000--001505) 6--151..........
Fig. 76 -- Hydraulic Control Valves Group,
Gas/LPG (001508-- ) 6--152..
Fig. 77 -- Hydraulic Pumps Group
(001000--001103) 6--154...........
Fig. 78 -- Hydraulic Pumps Group
(001104--001505) 6--155...........
Fig. 79 -- Hydraulic Pumps Group,
Gas/LPG (001508-- ) 6--156..
Fig. 80 -- Hydraulic Filters Group
(001000--001103) 6--157...........
Fig. 81 -- Hydraulic Filter Group
(001104--001505) 6--158...........
Fig. 82 -- Hydraulic Filter Group, Gas/LPG
(001508-- ) 6--159...........
Fig. 83 -- Hydraulic Solenoid Valve and
Manifold Group, Gas/LPG
(001508-- ) 6--160........
Fig. 84 -- Hydraulic Tow Bypass Group
(001061--001103) 6--162...........
Fig. 85 -- Rear Bumper Group 6--163.........
Fig. 86 -- Vacuum Fan Assembly, Gas/LPG
(001000--001505) 6--164..........
Fig. 87 -- Vacuum Fan Group, Gas/LPG
(001508-- ) 6--166...........
Fig. 88 -- Trunnion Group 6--168.............
Fig. 89 -- Solution Pumps Group 6--170.......

GENERAL INFORMATION
1550 Gas/LPG/Diesel MM283 (3--11)
x
Page
Fig. 90 -- Solution and Recovery Tank
Group, Front Side 6--172..........
Fig. 91 -- Solution and Recovery Tank
Group, Rear Side 6--174...........
Fig. 92 -- Rear Squeegee Assembly 6--176....
Fig. 93 -- Label Group 6--178.................
LPG PARTS 7-1.............................
Fig. 1 -- Fuel Tank and Engine Group,
LPG (001000--001423) 7-2........
Fig. 2 -- Engine Fuel Tank Group, LPG
(001424--001505) 7-4............
Fig. 3 -- Engine Fuel Tank Group, LPG
(001508-- ) 7-6.............
Fig. 4 -- Engine EFI and Vaporizer Group,
LPG (001424--001505
version 1) 7-8.................
Fig. 5 -- Engine EFI and Vaporizer Group,
LPG (001424--001505
version 2) 7-10................
Fig. 6 -- Engine EFI and Vaporizer Group,
LPG (001508-- ) 7-12........
Fig. 7 -- Engine Air Cleaner Group, LPG
(001000--001402) 7-14...........
Fig. 8 -- Engine Air Cleaner Group, LPG
(001403--001408) 7-15...........
Fig. 9 -- Engine Air Cleaner Group, LPG
(001508-- ) 7-16............
Fig. 10 -- Instrument Panel Group, LPG
(001508-- ) 7-18............
Fig. 11 -- Engine Cover Group, LPG
(001000--001423) 7-20...........
DIESEL PARTS 8-1..........................
Fig. 1 -- Engine Group, Diesel
(001000--001423) 8-2............
Fig. 2 -- Engine Group, Diesel
(001424--001505) 8-4............
Fig. 3 -- Engine Group, Diesel
(001508-- ) 8-6.............
Fig. 4 -- Engine Throttle Group, Diesel
(001508-- ) 8-8.............
Fig. 5 -- Engine Oil Filter and Drain Group,
Diesel (001424--001505) 8-10.....
Fig. 6 -- Engine Muffler Group, Diesel
(001424--001505) 8-12...........
Fig. 7 -- Engine Muffler Group, Diesel
(001508-- ) 8-14............
Fig. 8 -- Engine Fuel Tank Group, Diesel
(001000--001423) 8-16...........
Fig. 9 -- Engine Fuel Tank Group, Diesel
(001424--001505) 8-18...........
Fig. 10 -- Engine Fuel Tank Group, Diesel
(001508-- ) 8-20............
Fig. 11 -- Engine Alternator Group, Diesel
(001424--001505) 8-22...........
Fig. 12 -- Engine Radiator Group, Diesel
(001000--001423) 8-23...........
Page
Fig. 13 -- Engine Radiator and Hydraulic
Cooler Group, Diesel
(001424--001505) 8-24.........
Fig. 14 -- Engine Radiator and Hydraulic
Cooler Group, Diesel
(001508-- ) 8-26..........
Fig. 15 -- Engine Air Cleaner Group,
Diesel (001000--001423) 8-28.....
Fig. 16 -- Engine Air Cleaner Group,
Diesel (001424--001505) 8-29
.....
Fig. 17 -- Engine Air Cleaner Group,
Diesel (001508-- ) 8-30......
Fig. 18 -- Engine Glow Plug Control Group,
Diesel (001000-- 001423) 8-32.....
Fig. 19 -- Engine Glow Plug Control Group,
Diesel (001424--001505) 8-33.....
Fig. 20 -- Engine Battery Group, Diesel
(001000--001505) 8-34...........
Fig. 21 -- Engine Battery Group, Diesel
(001508-- ) 8-35............
Fig. 22 -- Steering Column Group, Diesel
(001000-- ) 8-36............
Fig. 23 -- Hydraulic Directional Pedal Group,
Diesel (001104-- ) 8-38......
Fig. 24 -- Hydraulic Schematic, Diesel
(001000-- ) 8-40............
Fig. 25 -- Hydraulic Hoses Group, Diesel
(001104-- ) 8-42............
Fig. 26 -- Hydraulic Control Valves Group,
Diesel (001000-- ) 8-44......
Fig. 27 -- Hydraulic Reservoir Group,
Diesel (001000-- ) 8-45......
Fig. 28 -- Hydraulic Pumps Group, Diesel
(001104-- ) 8-46............
Fig. 29 -- Hydraulic Filter Group, Diesel
(001104-- ) 8-47............
Fig. 30 -- Electrical Schematic, Diesel
(001000--001423) 8-48...........
Fig. 31 -- Electrical Schematic, Diesel
(001424--001505) 8-50...........
Fig. 32 -- Electrical Schematic, Diesel
(001508-- ) 8-54.............
Fig. 33 -- Electrical Wire Harnesses Group,
Diesel (001508-- ) 8-57......
Fig. 34 -- Instrument Panel Group, Diesel
(001508-- ) 8-64............
Fig. 35 -- Vacuum Fan Assembly, Diesel
(001000-- ) 8-66............
OPTIONS 9-1...............................
Fig. 1 -- Light Kit 9-2.......................
Fig. 2 -- Flashing Light Kit 9-4...............
Fig. 3 -- Revolving Light Group 9-5..........
Fig. 4 -- Revolving Light Kit, Overhead
Guard 9-6......................
Fig. 5 -- Overhead Guard Kit 9-7............
Fig. 6 -- Brush Pressure Warning Kit 9-8.....
Fig. 7 -- Sludge Removal Tool Assembly9-9
Fig. 8 -- Drain Pump Group 9-10............

GENERAL INFORMATION
xi
1550 Gas/LPG/Diesel MM283 (3--11)
Page
Fig. 9 -- Squeegee Wand Kit 9-12...........
Fig. 10 -- Reserve LPG Tank Group with
Filler Valve 9-14.................
Fig. 11 -- Protectoseal Gasoline Cap 9--15...
Fig. 12 -- Fire Extinguisher Kit
(001000--001505) 9--15.........
Fig. 13 -- Fire Extinguisher Group
(001508-- ) 9--16..........
Fig. 14 -- Wheel Assembly, Foam Filled 9--17
Fig. 15 -- Solution Tank Drain Kit 9--17......
Fig. 16 -- Rear View Mirror Kit 9--18........
Fig. 17 -- Spark Arresting Muffler Kit 9--18...
Fig. 18 -- Side Squeegees Extension Kit 9--19
Fig. 19 -- Heavy Duty Air Filter Group
(001403--001505) 9--20.........
Fig. 20 -- Documentation Group 9--20......
BREAKDOWNS 10-1.........................
Fig. 1 -- Solution Pump Breakdown,
33327 10-2......................
Fig. 2 -- Metering Solution Pump Breakdown,
16485 10-3......................
Fig. 3 -- Hydraulic Pump Breakdown,
34310 10-4......................
Fig. 4 -- Hydraulic Pump Breakdown,
48880 10-20.....................
Fig. 5 -- Hydraulic Piston Pump Breakdown,
74163 10-5......................
Fig. 6 -- Hydraulic Piston Pump Breakdown,
74163 10-6......................
Fig. 7 -- Hydraulic Piston Pump Breakdown,
373404 10-10...................
Fig. 8 -- Hydraulic Piston Pump Breakdown,
373404 10-12...................
Fig. 9 -- Hydraulic Gear Pump Breakdown,
373245 10-14...................
Fig. 10 -- Hydraulic Gear Pump Breakdown,
79078 10-16.....................
Fig. 11 -- Hydraulic Gear Pump Breakdown,
1014956 10-18..................
Fig. 12 -- Manual Control Breakdown,
74273 10-20.....................
Fig. 13 -- Hydraulic Motor Breakdown,
27792 10-21.....................
Fig. 14 -- Hydraulic Motor Breakdown,
22604 10-22.....................
Fig. 15 -- Hydraulic Motor Breakdown,
61489 10-24.....................
Fig. 16 -- Hydraulic Steering Valve
Breakdown, 57982 10-25.........
Fig. 17 -- Hydraulic Steering Valve
Breakdown, 74176 10-26.........
Fig. 18 -- Hydraulic Solenoid Valve
Breakdown, 31575 10-27.........
Fig. 19 -- Hydraulic Valve Breakdown,
32761 10-28.....................
Fig. 20 -- Hydraulic Flow Switch
Breakdown, 31556 10-29.........
Page
Fig. 21 -- Hydraulic Cylinder Breakdown,
04431 10-30.....................
Fig. 22 -- Hydraulic Valve Breakdown,
48108A 10-31...................
Fig. 23 -- Hydraulic Motor Breakdown,
1023322 10-32..................
Fig. 24 -- Hydraulic Motor Breakdown,
1019272 10-33..................
Fig. 25 -- Hydraulic Solenoid Valve
Breakdown, 1020194 10-34.......
Fig. 26 -- Hydraulic Solenoid Valve
Breakdown, 1042535 10-35.......
Fig. 27 -- LPG EFI Breakdown, 371663 10-36.
Fig. 28 -- Gasoline EFI Breakdown,
371645 10-37...................
CONTINENTAL ENGINE BREAKDOWN,
GASOLINE, LPG 11-1.......................
Fig. 1 -- Engine Block Group 11-2...........
Fig. 2 -- Cylinder Head Group 11-4..........
Fig. 3 -- Camshaft Group 11-6..............
Fig. 4 -- Crankshaft Group 11-8.............
Fig. 5 -- Piston Group 11-9.................
Fig. 6 -- Oil Pump Group 11-10.............
Fig. 7 -- Gear Cover Group 11-11...........
Fig. 8 -- Flywheel and Starter Group 11-12...
Fig. 9 -- Intake and Exhaust Manifold
Group 11-13....................
Fig. 10 -- Water Pump Group 11-14..........
Fig. 11 -- Water Header and Thermostat
Group 11-15....................
Fig. 12 -- Carburetor and Controls Group 11-16
Fig. 13 -- Oil Filter Group 11-17.............
Fig. 14 -- Distributor and Fuel Pump
Group 11-18...................
GM ENGINE BREAKDOWN,
GASOLINE, LPG 12-1.......................
Fig. 1 -- Cylinder Head, Valves Group 12-2...
Fig. 2 -- Distributor and Ignition Group 12-4..
Fig. 3 -- Manifold Group 12-6...............
Fig. 4 -- Engine Block and Piston Group 12-8.
Fig. 5 -- Oil Pump and Oil Pan Group 12-10..
Fig. 6 -- Crankshaft Group 12-12............
Fig. 7 -- Camshaft and Water Pump
Group 12-14...................
61697 CONTINENTAL ENGINE
BREAKDOWN, DIESEL 13-1.................
Fig. 1 -- Engine Block Group 13-2...........
Fig. 2 -- Fuel System Group 13-4...........
Fig. 3 -- Cylinder Head Group 13-6..........
Fig. 4 -- Camshaft Group 13-8..............
Fig. 5 -- Crankshaft Group 13-9.............
Fig. 6 -- Piston Group 13-10................
Fig. 7 -- Oil Pump Group 13-11.............
Fig. 8 -- Gear Cover Group 13-12...........
Fig. 9 -- Flywheel and Starter Group 13-13...

GENERAL INFORMATION
1550 Gas/LPG/Diesel MM283 (3--11)
xii
Page
Fig. 10 -- Intake and Exhaust Manifold
Group 13-14....................
Fig. 11 -- Water Pump Group 13-15..........
Fig. 12 -- Water Header and Thermostat
Group 13-16....................
Fig. 13 -- Alternator Brackets and PCV
Group 13-17....................
Fig. 14 -- Oil Filter Group 13-18.............
65951 CONTINENTAL ENGINE
BREAKDOWN,DIESEL 14-1..................
Fig. 1 -- Engine Block Group 14-2...........
Fig. 2 -- Fuel System Group 14-4...........
Fig. 3 -- Cylinder Head Group 14-6..........
Fig. 4 -- Camshaft Group 14-8..............
Fig. 5 -- Crankshaft Group 13-9.............
Fig. 6 -- Piston Group 14-10................
Fig. 7 -- Oil Pump Group 14-11.............
Fig. 8 -- Gear Cover Group 14-12...........
Fig. 9 -- Flywheel and Starter Group 14-13...
Fig. 10 -- Intake and Exhaust Manifold
Group 14-14....................
Fig. 11 -- Water Pump Group 14-15..........
Fig. 12 -- Water Header and Thermostat
Group 14-16....................
Fig. 13 -- Alternator Brackets and PCV
Group 14-17....................
Fig. 14 -- Oil Filter Group 14-18.............
PERKINS ENGINE BREAKDOWN, DIESEL 15-1
Fig. 1 -- Cylinder Block Group 15-2..........
Fig. 2 -- Crankshaft and Piston Group 15-4...
Fig. 3 -- Cylinder Head Group 15-6..........
Fig. 4 -- Rocker Shaft Group 15-8...........
Fig. 5 -- Timing Gear, Cover and Camshaft . .
Group 15-10....................
Fig. 6 -- Timing Gear Cover Mount
Group 15-12....................
Fig. 7 -- Oil Pump Group 15-13.............
Fig. 8 -- Auxiliary Drive Group 15-14.........
Fig. 9 -- Fuel Injection Pipe Group 15-16.....
Fig. 10 -- Fuel Injection Pump
Breakdown 15-18................
Fig. 11 -- Flywheel Housing Group 15-19.....
Fig. 12 -- Lubricating Oil Sump Group 15-20..
Fig. 13 -- Cylinder Head Cover Group 15-22..
Fig. 14 -- Water Pump and Thermostat
Group 15-24....................
Fig. 15 -- Manifold Group 15-26.............
Fig. 16 -- Glow Plug and Engine Lift
Group 15-27....................
Fig. 17 -- Top Joints and Gaskets Group 15-28
Fig. 18 -- Bottom Joints and Gaskets
Group 15-29....................
Page
1011676 CAT ENGINE BREAKDOWN,
DIESEL 16-1.......................
Fig. 1 -- Cylinder Block Group 16-2..........
Fig. 2 -- Crankshaft and Piston Group 16-4...
Fig. 3 -- Cylinder Head and Cover Group 16-6
Fig. 4 -- Valve and Rocker Arm Group 16-8..
Fig. 5 -- Camshaft Group 16-9..............
Fig. 6 -- Front Housing and Gear Group 16-10
Fig. 7 -- Flywheel Housing and Starter
Group 16-12....................
Fig. 8 -- Auxiliary Drive Group 16-13.........
Fig. 9 -- Oil Pan Group 16-14...............
Fig. 10 -- Water Pump and Thermostat
Group 16-16....................
Fig. 11 -- Cooler Group 16-18...............
Fig. 12 -- Manifold Group 16-20.............
Fig. 13 -- Fuel Group 16-22.................
Fig. 14 -- Fumes Disposal Group 16-24......
Fig. 15 -- Alternator Group 16-26............
Fig. 16 -- Glow Plug Group 16-27............
1040607 CAT ENGINE BREAKDOWN,
DIESEL 17-1.......................
Fig. 1 -- Cylinder Block Group 17-2..........
Fig. 2 -- Crankshaft and Piston Group 17-4...
Fig. 3 -- Cylinder Head and Cover Group 17-6
Fig. 4 -- Valve and Rocker Arm Group 17-8..
Fig. 5 -- Camshaft Group 17-9..............
Fig. 6 -- Front Housing and Gear Group 17-10
Fig. 7 -- Flywheel Housing and Starter
Group 17-12....................
Fig. 8 -- Auxiliary Drive Group 17-13.........
Fig. 9 -- Oil Pan Group 17-14...............
Fig. 10 -- Water Pump and Thermostat
Group 17-16....................
Fig. 11 -- Cooler Group 17-18...............
Fig. 12 -- Manifold Group 17-19.............
Fig. 13 -- Fuel Group 17-20.................
Fig. 14 -- Fumes Disposal Group 17-22......
Fig. 15 -- Alternator Group 17-23............
Fig. 16 -- Glow Plug Group 17-24............
CROSS REFERENCE 18-1..................
PART NUMBER TO PAGE NUMBER
CROSS REFERENCE LIST 18-2.......
PART DESCRIPTION TO PAGE NUMBER
CROSS REFERENCE LIST 18-21....

SPECIFICATIONS
1--1
1550 Gas/LPG/Diesel MM283 (2--05)
SECTION 1
CONTENTS
Page
MACHINE SPECIFICATIONS 1-3..............
POWER TYPE 1-3........................
GAS/LPG CONTINENTAL ENGINES --
(For machines below serial
number 001424) 1-3..............
GAS/LPG GM ENGINES -- (For machines
serial number 001424 and above) 1-3..
DIESEL CONTINENTAL ENGINES --
(For machines below serial
number 001424) 1-3..............
DIESEL PERKINS ENGINES --
(For machines serial number
001424 -- 001505) 1-3...............
CAT ENGINES -- (For machines serial
number 001508 and above) 1-4.......
POWER TRAIN 1-4.......................
STEERING 1-4...........................
BRAKING SYSTEM 1-4...................
SUSPENSION SYSTEM 1-4...............
SYSTEM FLUID CAPACITIES 1-4..........
CONTINENTAL ENGINES (For machines
below serial number 001424) 1-4......
GAS/LPG GM ENGINES (For machines
serial number 001424 -- 001505) 1-4...
GAS/LPG GM ENGINES (For machines
serial number 001508 and above) 1-4..
DIESEL PERKINS ENGINES (For
machines serial number
001424 -- 001505) 1-4.............
DIESEL CAT ENGINES (For machines
serial number 001508 and above) 1-4..
GENERAL MACHINE
DIMENSIONS/CAPACITIES 1-5.........
MACHINE WEIGHTS 1-5..................
GENERAL MACHINE PERFORMANCE 1-5..
MACHINE DIMENSIONS 1-6..................

SPECIFICATIONS
1550 Gas/LPG/Diesel MM283 (6--91)
1--2

SPECIFICATIONS
1--3
1550 Gas/LPG/Diesel MM283 (2--05)
MACHINE SPECIFICATIONS
POWER TYPE
GAS/LPG CONTINENTAL ENGINES -- (For
machines below serial number 001424)
Engine manufacturer/model -- Continental TM27
Engine type -- piston
Ignition -- breaker--less type spark
Cycle -- 4
Aspiration -- natural
Cylinders -- 4
Bore -- 3.58 in (90 mm)
Stroke -- 4.06 in (105 mm)
Displacement -- 164 cu in (2.7 L)
Net power -- 58 hp (43 kw) @ 2400 rpm
governed 70 hp (52 kw) @ 3000 rpm
maximum
Fuels -- gasoline, 85 octane unleaded, or LPG
Cooling system -- water
Electrical system -- 12 V nominal, 42 A alternator
GAS/LPG GM ENGINES -- (For machines serial
number 001424 and above)
Engine manufacturer/model -- GM Powertrain
Engine type -- piston
Ignition -- solid state distributor
Cycle -- 4
Aspiration -- natural
Cylinders -- 4
Bore -- 4.00 in (101.60 mm)
Stroke -- 3.60 in (91.44 mm)
Displacement -- 181 cu in (3.0 L)
Net power: Gasoline
NA hp ( kw) @ 2400 rpm governed
83 hp (62 kw) @ 3000 rpm maximum
Net power: LPG
65 hp (49 kw) @ 2400 rpm governed
NA hp ( kw) @ NA rpm maximum
Fuels -- gasoline, 85 octane unleaded, or LPG
Cooling system -- water
Electrical system -- 12 V nominal, 50 A alternator
DIESEL CONTINENTAL ENGINES -- (For
machines below serial number 001424)
Engine manufacturer/model -- Continental
TMD27
Engine type -- piston
Ignition -- diesel
Cycle -- 4
Aspiration -- natural
Cylinders -- 4
Bore -- 3.58 in (90 mm)
Stroke -- 4.06 in (105 mm)
Displacement -- 164 cu in (2.7 L)
Net power -- 55 hp (40 kw) @ 2400 rpm
governed 66 hp (50 kw) @ 3000 rpm
maximum
Fuels -- #1 or #2 diesel fuel
Cooling system -- water
Electrical system -- 12 V nominal, 42 A alternator
DIESEL PERKINS ENGINES -- (For machines
serial number 001424 -- 001505)
Engine manufacturer/model -- Perkins 704--30
Series
Engine type -- piston
Ignition -- solid state distributor
Cycle -- 4
Aspiration -- natural
Cylinders -- 4
Bore -- 3.80 in (97.00 mm)
Stroke -- 3.90 in (100.00 mm)
Displacement -- 181 cu in (3.0 L)
Net power: -- 63 hp (44.8 kw) @ 2400 rpm
governed
63 hp (47 kw) @ 2400 rpm maximum
Fuels -- Diesel
Cooling system -- water/ethylene glycol
antifreeze
Electrical system -- 12 V nominal, 50 A alternator
(std), 100 A alternator (HD)

SPECIFICATIONS
1550 Gas/LPG/Diesel MM283 (8--08)
1--4
CAT ENGINES -- (For machines serial number
001508 and above)
Engine manufacturer/model -- CAT 3044C
Engine manufacturer/model -- CAT C3.4
Engine type -- piston
Ignition -- solid state distributor
Cycle -- 4
Aspiration -- natural
Cylinders -- 4
Bore -- 3.70 in (94.00 mm)
Stroke -- 4.70 in (120.00 mm)
Displacement -- 201 cu in (3.33 L)
Net power: -- 62 hp (46.2 kw) @ 2400 rpm
governed
63 hp (47 kw) @ 2600 rpm maximum
Fuels -- Diesel
Cooling system -- water/ethylene glycol
antifreeze
Electrical system -- 12 V nominal, 75 A alternator
(std), 100 A alternator (HD)
POWER TRAIN
Propelling -- hydraulic drive motors (2)
Scrub brush -- hydraulic drive motors (2)
Vacuum fan -- belt driven
Drain pump -- engine driven
STEERING
Type -- articulated frame
Power source -- double action hydraulic cylinder
Emergency steering -- manual
BRAKING SYSTEM
Service brakes -- dual hydraulic caliper disc
brakes (2), (two per front wheel) foot brake
master cylinder actuated.
Parking brakes -- mechanical caliper disc brakes
(2), (one per front wheel), cable actuated.
SUSPENSION SYSTEM
Front -- two 8.75 x 16.5 6-ply rating tubeless tires
Rear -- two 8.75 x 16.5 6-ply rating tubeless tires
SYSTEM FLUID CAPACITIES
1550 recovery tank -- 510 gal (1930 L)
SRS cleaning solution tank -- 10 gal (40 L)
Fuel tank, gasoline, diesel -- 15.3 gal (60 L)
Fuel tank, LPG -- 33 lb (15 kg)
CONTINENTAL ENGINES (For machines
below serial number 001424)
Hydraulic system, reservoir -- 11.5 gal (45 L)
Hydraulic system, total system -- 13.8 gal (52 L)
Engine cooling system:
radiator -- 6.4 qt (6 L)
total system -- 13.4 qt (13 L)
Engine lubricating oil with filter -- 7 qt (6.6 L)
GAS/LPG GM ENGINES (For machines serial
number 001424 -- 001505)
Hydraulic system, reservoir -- 11.5 gal (45 L)
Hydraulic system, total system -- 13.8 gal (52 L)
Engine cooling system:
radiator/hoses -- 8.75 qt (8 L)
total system -- 12.75 qt (12 L)
Engine lubricating oil with filter -- 5.0 qt (4.7 L)
GAS/LPG GM ENGINES (For machines serial
number 001508 and above)
Hydraulic system, reservoir -- 14.2 gal (54 L)
Hydraulic system, total system -- 18.3 gal (69 L)
Engine cooling system:
radiator/hoses -- 8.75 qt (8 L)
total system -- 12.75 qt (12 L)
Engine lubricating oil with filter -- 5.0 qt (4.7 L)
DIESEL PERKINS ENGINES (For machines
serial number 001424 -- 001505)
Hydraulic system, reservoir -- 11.5 gal (45 L)
Hydraulic system, total system -- 13.8 gal (52 L)
Engine cooling system:
radiator/hoses -- 8.75 qt (8 L)
total system -- 12.75 qt (12 L)
Engine lubricating oil with filter -- 11 qt (10.4 L)
DIESEL CAT ENGINES (For machines serial
number 001508 and above)
Hydraulic system, reservoir -- 11.5 gal (45 L)
Hydraulic system, total system -- 13.8 gal (52 L)
Engine cooling system:
radiator/hoses -- 8.75 qt (8 L)
total system -- 12.75 qt (12 L)
Engine lubricating oil with filter -- 10.6 qt (10. L)

SPECIFICATIONS
1--5
1550 Gas/LPG/Diesel MM283 (9--01)
GENERAL MACHINE
DIMENSIONS/CAPACITIES
Length -- 198.0 in (5029 mm)
Width -- 61.00 in (1550 mm)
Height -- 71.50 in (1816 mm)
Height with overhead guard and light -- 95.50 in
(2426 mm)
Track, front -- 46.7 in (1185 mm)
Track, rear -- 45.3 in (1150 mm)
Wheel base -- 90.0 in (2286 mm)
Scrub brush (2), path width -- 50 in (1270 mm)
Scrub brush (2), diameter -- 11 in (280 mm)
Rear squeegee path width -- 56.5 in (1435 mm)
Debris hopper capacity --- 2.6 cu ft (0.073 m3)
MACHINE WEIGHTS
GVWR -- 11300 lb (5085 kg)
GENERAL MACHINE PERFORMANCE
Maximum forward speed -- 9 mph (14.5 km/h)
Maximum reverse speed -- 7 mph (11 km/h)
Turning radius -- 136.9 in (3471 mm)
Maximum rated climb and descent angle with
empty tanks -- 8_
Maximum rated climb and descent angle with
full tanks -- 5_

SPECIFICATIONS
1550 Gas/LPG/Diesel MM283 (9--01)
1--6
MACHINE DIMENSIONS
SIDE VIEW
TOP VIEW
198.0 in (5029 mm)
61.0 in
(1550 mm)
61.0 in
(1550 mm)
55.75 in
(1415 mm)
53.0 in
(1346 mm)
71.5 in
(1816 mm)
59.0 in
(1499 mm)
95.5 in
(2426 mm)
90.0 in (2286 mm)
84.5 in
(2146 mm)
06962