American-Lincoln 7760 User manual

Instructions for Use
READ THIS BOOK
This book has important information for the use and safe operation of this machine. Failure to read this book
prior to operating or attempting any service or maintenance procedure to your machine could result in injury
to you or to other personnel; damage to the machine or to other property could occur as well. You must have
training in the operation of this machine before using it.
All directions given in this book are as seen from the operator’s position at the rear of the machine.
7765 / 7760
SCRUBBER/SWEEPER
Form Number 56041667 Revised 1/07 English
7765: 505-255, 505-258, 505-256, 505-259, 505-257, 505-260
7760: 505-255CE, 505-258CE, 505-257CE, 505-260CE

2 - FORM NO. 56041667 American-Lincoln Technology
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TABLE OF CONTENTS.............................................................................................................................................2-3
INTRODUCTION........................................................................................................................................................4
INTRODUCTION...............................................................................................................................................4
PARTSAND SERVICE.....................................................................................................................................4
NAMEPLATE.....................................................................................................................................................4
UN-CRATING....................................................................................................................................................4
MACHINE OPERATION.............................................................................................................................................5
PREPARING THE MACHINE FOR OPERATION.............................................................................................5
CAUTIONSAND WARNINGS...................................................................................................................................6
CONSIGNES DE PRUDENCE ET DE SECURITE....................................................................................................7
OPERATION OF CONTROLSAND GAUGES..........................................................................................................8
IGNITION SWITCH...........................................................................................................................................8
LIGHT SWITCH ................................................................................................................................................8
TURN SIGNAL(OPTION).................................................................................................................................9
GLOW PLUG SWITCH.....................................................................................................................................9
HORN PUSH BUTTON.....................................................................................................................................9
SIDE BROOM LIFT...........................................................................................................................................9
MAIN BROOM SWITCH...................................................................................................................................10
SIDE BROOM SWITCH....................................................................................................................................10
DUST CONTROL SWITCH...............................................................................................................................10
FILTER SHAKER SWITCH...............................................................................................................................10
WATER TEMPERATURE GAUGE....................................................................................................................11
HOUR METER..................................................................................................................................................11
FUELGAUGE...................................................................................................................................................11
OILPRESSURE GAUGE..................................................................................................................................11
VOLT METER ...................................................................................................................................................11
SCRUB BRUSHES SWITCH............................................................................................................................11
BRUSH ROTATION SWITCH...........................................................................................................................12
BRUSH PRESSURE SWITCH..........................................................................................................................12
SQUEEGEE BLADE SWITCH..........................................................................................................................12
HIGH RECOVERYWARNING LIGHT..............................................................................................................12
LOW SOLUTION WARNING LIGHT.................................................................................................................12
HOPPER LIFT...................................................................................................................................................13
HOPPER SAFETY LOCK ARM ........................................................................................................................13
HOPPER DUMP DOOR....................................................................................................................................13
MANUAL DUMP HOPPER................................................................................................................................13
SOLUTION CONTROL.....................................................................................................................................13
SWEEPING BROOM LIFT CONTROL.............................................................................................................13
THROTTLE.......................................................................................................................................................14
CHECK ENGINE LIGHT...................................................................................................................................14
PARKING BRAKE.............................................................................................................................................14
FOOT BRAKE...................................................................................................................................................14
ACCELERATOR & DIRECTIONALCONTROL PEDAL....................................................................................15
BACK-UPALARM SWITCH..............................................................................................................................15
SEATADJUSTMENT........................................................................................................................................15
TABLE OF CONTENTS

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TABLE OF CONTENTS
ESP SYSTEM OPERATING INSTRUCTIONS...........................................................................................................16
ESP RECYCLING CONTROL PANEL..............................................................................................................16
ESP RECYCLING SYSTEM ON/OFF SWITCH...............................................................................................16
SOLUTION HIGH WARNING LIGHT................................................................................................................16
DETERGENT LOW WARNING LIGHT.............................................................................................................16
DETERGENT FLOW KNOB .............................................................................................................................16
THE SCRUBBING SYSTEM - HOW IT WORKS..............................................................................................17
NON-RECYCLING SCRUBBING SYSTEM - HOW IT WORKS.......................................................................17
RECOVERYOR ESP SYSTEM - HOW ITWORKS.........................................................................................18
THE SWEEPING & DUST CONTROLSYSTEM - HOW IT WORKS ...............................................................19
OPERATING INSTRUCTIONS ..................................................................................................................................20
FILLING THE SOLUTIONTANK - NON-RECYCLING (STANDARD) ..............................................................20
FILLING THE SOLUTIONTANK - ESP............................................................................................................20
PRE-START CHECKLIST.................................................................................................................................20
BEFORE STARTINGTHE ENGINE..................................................................................................................20
STARTING THE ENGINE .................................................................................................................................20
POST-START CHECKLIST...............................................................................................................................21
TRANSPORTING THE MACHINE....................................................................................................................21
BEGINNING THE CLEANING OPERATION ....................................................................................................21
HELPFULHINTS FOR CLEANING OPERATION............................................................................................22
POST-OPERATION & CLEAN-UP INSTRUCTIONS.................................................................................................23
TO STOPTHE CLEANING OPERATION.........................................................................................................23
POST-OPERATION CHECKLIST.....................................................................................................................23
TO DRAINTHE SOLUTION TANK...................................................................................................................23
TO CLEAN THE SOLUTION TANK ..................................................................................................................23
TO DRAINTHE RECOVERYTANK..................................................................................................................23
TO CLEANTHE RECOVERYTANK.................................................................................................................24
TO EMPTYTHE DEBRIS HOPPER.................................................................................................................25
TOWING INSTRUCTIONS...............................................................................................................................25
SERVICE CHART......................................................................................................................................................26
GENERAL MACHINE MAINTENANCE.....................................................................................................................28
LUBRICATION..................................................................................................................................................28
ENGINE............................................................................................................................................................29
MAIN BROOM REMOVAL................................................................................................................................29
MAIN BROOM LEVELADJUSTMENT..............................................................................................................30
ADJUSTING MAIN BROOM WEAR PATTERN................................................................................................30
SIDE BROOM LEVELADJUSTMENT..............................................................................................................30
SIDE BROOM REPLACEMENT.......................................................................................................................30
FLAPS...............................................................................................................................................................31
SCRUB BRUSH REPLACEMENT....................................................................................................................32
COVERSAND LATCHES.................................................................................................................................32
SOLUTION WARNING LIGHT..........................................................................................................................32
RECOVERY WARNING LIGHT........................................................................................................................32
SOLUTION CONTROL- STANDARD...............................................................................................................32
SOLUTION CONTROL- ESP...........................................................................................................................32
RECYCLING PUMP ESP SYSTEM..................................................................................................................33
ESP SYSTEM STORAGE.................................................................................................................................33
REAR SQUEEGEE...........................................................................................................................................33
SQUEEGEE CASTER WHEELS......................................................................................................................33
ADJUSTING CASTERS....................................................................................................................................33
GENERAL TROUBLESHOOTING ............................................................................................................................34
TECHNICAL SPECIFICATIONS................................................................................................................................36

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INTRODUCTION
INTRODUCTION
This manual will help you get the most from your American-Lincoln™- Alto sweeper / scrubber. Read it
thoroughly before operating the machine.
PARTSAND SERVICE
Repairs, when required, should be performed by your Authorized American-Lincoln™-Alto Service Center,
who employs factory trained service personnel, and maintains an inventory of American-Lincoln™- Alto
original replacement parts and accessories.
Call the AMERICAN-LINCOLN / ALTO INDUSTRIAL DEALER named below for repairs or service. Please
specify the Model and Serial Number when discussing your machine.
(Dealer, affix service sticker here.)
NAMEPLATE
The Model Number and Serial Number of your machine are shown on the Nameplate, located on the wall of
the operator’s compartment. This information is needed when ordering repair parts for the machine. Use the
space below to note the Model Number and Serial Number of your machine for future reference.
MODEL _____________________________________
SERIAL NUMBER_____________________________
Note: Reference the separately supplied engine manufacture’s maintenance and operator manual for more
detailed engine specification and service data.
UN-CRATING
Upon delivery, carefully inspect the shipping crate and the machine for damage. If damage is evident, save all
parts of the shipping crate so that they can be inspected by the trucking company that delivered the machine.
Contact the trucking company immediately to file a freight damage claim.

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MACHINE OPERATION
FIGURE 1
YOUR 7765/7760 MACHINE HAS BEEN SHIPPED COMPLETE, BUT DO NOT ATTEMPT TO OPERATE WITHOUT FOLLOWING
THESE INSTRUCTIONS.
PREPARING THE MACHINE FOR OPERATION
1. Connect and tighten battery cables.
2. Fill the tank with REGULAR GRADE unleaded gasoline; Diesel fuel if equipped with diesel engine.
WARNING
Never fill tank while engine is running.Always be sure fuel container and sweeper are
electrically connected before pouring fuel. This can easily be done by permanently attaching one end of an insulated wire to
the container with battery clip on the opposite end.
3. Check engine crankcase oil level.Although properly lubricated at factory, check before starting engine. No special brand oil is
used. Recommended number of operating hours before the initial oil change is the same as normal. See Maintenance.
4. Check radiator coolant level. Permanent type antifreeze is added at the factory to provide protection to approximately -35° F (37°
C). To retain this protection level, always mix 1 part water to 1 part antifreeze.
5. Check oil level in the hydraulic reservoir located at center of machine beside the engine. Oil fill level should be two (2) inches (5
cm.) below filler neck assembly. If oil is required, add HYDRAULIC FLUID ONLY, automatic transmission fluid FORD type “F”.After
the first 50 operating hours, service must be performed on your engine to insure future high performance and trouble-free operation.
See Maintenance.

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CAUTIONSAND WARNINGS
SYMBOLS
American-Lincoln™- Alto uses the symbols below to signal potentially dangerous conditions.Always read this information
carefully and take the necessary steps to protect personnel and property.
DANGER!
Is used to warn of immediate hazards that will cause severe personal injury or death.
WARNING!
Is used to call attention to a situation that could cause severe personal injury.
CAUTION!
Is used to call attention to a situation that could cause minor personal injury or damage to the machine or other property.
Read all instructions before using.
GENERAL SAFETY INSTRUCTIONS
Specific Cautions and Warnings are included to warn you of potential danger of machine damage or bodily harm.
DANGER!
•Thismachineemits exhaustgases (carbonmonoxide) thatcan causeserious injuryor death,always provideadequate
ventilation when using machine.
WARNING!
•This machine shall be used only by properly trained and authorized persons.
•While on ramps or inclines, avoid sudden stops when loaded. Avoid abrupt sharp turns. Use low speed down hills. Clean only
while ascending (driving up) the ramp.
•To avoid hydraulic oil injection or injury always wear appropriate clothing and eye protection when working with or near hydraulic
system.
•Turn the key switch off (O) and disconnect the batteries before servicing electrical components.
•Never work under a machine without safety blocks or stands to support the machine.
•Do not dispense flammable cleaning agents, operate the machine on or near these agents, or operate in areas where flammable
liquids exist.
•Do not clean this machine with a pressure washer.
CAUTION!
•This machine is not approved for use on public paths or roads.
•This machine is not suitable for picking up hazardous dust.
•Use care when using scarifier discs and grinding stones. American-Lincoln™-Alto will not be held responsible for any damage to
floor surfaces caused by scarifiers or grinding stones.
•When operating this machine, ensure that third parties, particularly children, are not endangered.
•Before performing any service function, carefully read all instructions pertaining to that function.
•Do not leave the machine unattended without first turning the key switch off (O), removing the key and applying the parking
brake.
•Turn the key switch off (O) before changing the brushes, and before opening any access panels.
•Take precautions to prevent hair, jewelry, or loose clothing from becoming caught in moving parts.
•Use caution when moving this machine in below freezing temperature conditions.Any water in the solution or recovery tanks or in
the hose lines could freeze.
•Before use, all doors and hoods should be properly latched.
SAVE THESE INSTRUCTIONS

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CONSIGNES DE PRUDENCE ET DE SECURITE
SYMBOLES
American-Lincoln™-Altoutiliselessymbolesreproduitsci-dessouspourattirerl’attentiondel’opérateursurdessituationspotentiellement
dangereuses. Il est donc conseillé de lire attentivement ces indications et de prendre les mesures adéquates en vue de protéger le
personnel et le matériel.
DANGER !
Ce symbole est utilisé pour mettre l’opérateur en garde contre les risques immédiats pouvant provoquer des dommages corporels
graves, voire entraîner la mort.
ATTENTION !
Ce symbole est utilisé pour attirer l’attention sur une situation susceptible d’entraîner des dommages corporels graves.
PRUDENCE !
Cesymbole est utilisé pourattirerl’attention de l’opérateur surunesituationqui pourrait entraînerdesdommagescorporels minimes ou
des dommages à la machine ou à d’autres équipements.
Lire toutes les instructions avant d’utiliser l’appareil.
CONSIGNES GENERALES DE SECURITE
Les consignes spécifiques de prudence et de sécurité mentionnées ici ont pour but de vous informer de la survenance de tout risque
de dommages matériels ou corporels.
DANGER !
•Lesgazd’échappement (monoxyde de carbone) évacués par la machine peuvent entraîner de graves dommages corporels,voire
la mort. Veillez donc toujours à bénéficier d’une ventilation suffisante lorsque vous utilisez la machine.
ATTENTION !
•Cette machine ne pourra être utilisée que par du personnel parfaitement entraîné et dûment autorisé.
•Evitezlesarrêtssubitslorsquelamachineestchargéeetsetrouvesurdesrampesoudesplansinclinés.Evitezlesviragesserrés.Adoptez
une vitesse réduite lorsque la machine est en descente. Ne nettoyez que lorsque la machine monte la pente.
•Lorsque vous utilisez le système hydraulique ou travaillez à proximité de celui-ci, veillez à porter une tenue appropriée et des lunettes de
protection afin d’éviter tout risque de blessures ou toute projection d’huile.
•Positionnez la clé de contact sur off (O) et déconnectez les batteries avant de procéder à l’entretien des composants électriques.
•Ne travaillez jamais sous une machine sans y avoir placé, au préalable, des blocs de sécurité ou des étais destinés à soutenir la
machine
•Ne déversez pas d’agents nettoyants inflammables, ne faites pas fonctionner la machine à proximité de ces agents ou d’autres liquides
inflammables.
•Ne nettoyez pas cette machine avec un nettoyeur à pression.
PRUDENCE !
•Cette machine n’est pas conçue pour une utilisation sur les chemins ou voies publiques.
•Cette machine n’est pas conçue pour le ramassage des poussières dangereuses.
•Faites extrêmement attention lorsque vous utilisez des disques de scarificateur et des meules. American-Lincoln™- Alto ne pourra, en
aucun cas, être tenu pour responsable des dommages occasionnés à vos sols par ce type d’équipement.
•Lors de l’utilisation de cette machine, assurez-vous que des tiers, et notamment des enfants, ne courent pas le moindre risque.
•Avant de procéder à toute opération d’entretien, veuillez lire attentivement toutes les instructions qui s’y rapportent.
•Ne laissez pas la machine sans surveillance sans avoir, au préalable, coupé le contact, enlevé la clé de contact (O) et tiré le frein à
main.
•Positionnez la clé de contact sur off (O) avant de remplacer les brosses ou d’ouvrir tout panneau d’accès.
•Prenez toutes les mesures nécessaires pour éviter que les cheveux, les bijoux ou les vêtements amples ne soient entraînés dans les
parties mobiles de la machine.
•Faitesattentionlorsquevousdéplacezcettemachinedansunendroitoùlatempératurepeutdescendresous0°.Carl’eaucontenuedans
la solution, dans les réservoirs de récupération ou dans les conduites risquerait de geler.
•Avant utilisation, toutes les portes et capots doivent être correctement fermés.
CONSERVEZ SOIGNEUSEMENT CES INSTRUCTIONS

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BRUSH ROTATION SWITCH
SQUEEGEE SWITCH
SCRUB BRUSH LIFT SWITCH
BRUSH PRESSURE SWITCH
HIGH RECOVERY
WARNING LIGHT
LOW SOLUTION
WARNING LIGHT
HOPPER LIFT
HOPPER DUMP DOOR
SOLUTION HIGH LIGHT
RECYCLING SYSTEM SWITCH
DETERGENT LOW LIGHT
DETERGENT FLOW KNOB
SWEEPING BROOM
LIFT CONTROL
SOLUTION CONTROL
TURN SIGNAL
CHECK ENGINE LIGHT (GAS/LP)
PARKING BRAKE
MAIN BROOM SWITCH
SIDE BROOM SWITCH
DUST CONTROL SWITCH
FILTER SHAKER SWITCH
IGNITION SWITCH
LIGHT SWITCH
GLOW PLUG SWITCH
(DIESEL ONLY)
SIDE BROOM LIFT
HORN PUSH BUTTON
FOOT BRAKE
BACKUP ALARM SWITCH
ACCELERATOR &
DIRECTIONAL
CONTROL PEDAL
SEAT ADJUSTMENT
WATER TEMPERATURE GAUGE
HOUR METER
FUEL GAUGE
OIL PRESSURE GAUGE
VOLT METER
THROTTLE GAS/LP
DIESEL
P-5101ecp FIGURE 2
OPERATIONS OF CONTROLS AND GAUGES
IGNITION SWITCH
The keyed ignition switch is located to the right of the steering column on the front face of the instrument console. It has four positions.
1. The key turned to the center “OFF” position will shut off the engine.The following items can be activated in the “OFF” position.
(A.) Horn
(B.) Light Options
2. The key turned to the right “IGN/ON” position will allow all the following items to be activated (but will NOT start the engine):
(A) Horn
(B) Light Options
(C) Turn Signals
(D) Instrument Panel Gauges
3. The key turned to the far right “START” position will start the engine.This position is a momentary position. The key will revert to
the “IGN/ON” position when it is released.
LIGHT SWITCH
The light switch is located above the horn button to the right of the steering wheel. It will work various light options that are available for
this machine, such as:
* HEAD LIGHTS
* TAILLIGHTS
* INSTRUMENT LIGHTS
All gauges, with the exception of the hour meter, can have an optional internal instrument light.

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OPERATIONS OF CONTROLS AND GAUGES
IGNITION
LIGHTS
HORN
SIDE
BROOM
LIFT
GLOW PLUG
SWITCH
(DIESEL ONLY)
P-4853ecp FIGURE 3
4-WAY TURN SIGNAL (Option)
The turn signal option is located on the steering column and works as automotive turn signals work, forward on the lever for right and
back on the lever for left. The 4-way flasher will activate when the turn signal lever is pulled out.
GLOW PLUG SWITCH (Diesel)
Undernocircumstances should any otherunauthorizedstartingaids be used atthesametime as Glow Plugs. The GlowPlugSwitchis
located to the right of the steering column on the front face of the instrument console. Use the following procedure to operate:
1. Before operating the starter motor, press the “GLOW PLUG” button for 20 to 30 seconds.
2. With the “GLOW PLUG” button still depressed, engage the starter motor until the engine starts.
3. Continue to press the “GLOW PLUG” button for a few seconds after the engine has started until even running has been obtained.
4. If the engine does not start, disengage the starter motor, but keep the “GLOW PLUG” button depressed for an additional 10
to 15 seconds. Keep the Glow Plugs energized while starting the engine and for a few seconds after the engine has been running
smoothly.
HORN PUSH BUTTON
The horn button is located to the right of the steering column on the front face of instrument console. The horn button is always active.
Push the horn button to sound the horn.
SIDE BROOM LIFT (OPTIONALFOR MANUAL DUMP)
The Side Broom Lift Lever is located to the right of the instrument console. The handle pulled back and turned to the right will raise the
side broom and lock it into position.

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OPERATIONS OF CONTROLS AND GAUGES
DUST
CONTROL
MAIN
BROOM
SIDE
BROOM
FILTER
SHAKER
SWEEPING
SIDE
BROOM
MAIN
BROOM
ON
OFF
ON
OFF
FILTER
SHAKER
DUST
CONTROL
P-4862 FIGURE 4
MAIN BROOM SWITCH
The Main Broom Switch is located on the console to the right of the steering wheel in the SWEEPING section. This switch will activate
the Main Broom. This switch has two positions “ON” and “OFF”. See Sweeping Broom Lift Control.
SIDE BROOM SWITCH (Option For Manual Dump Machines)
The Side Broom Switch is located on the console to the right of the steering wheel in the SWEEPING section. This switch will activate
the Side Broom. This switch has two positions “ON” and “OFF”. See Side Broom Lift Control.
DUST CONTROL SWITCH (Wet Sweep Bypass Option - Option for Manual Dump Machine)
The Dust Control Switch is located on the console to the right of the steering wheel in the SWEEPING section. This switch will activate
the dust control system.
FILTER SHAKER SWITCH (Variable Dump Machines Only)
The Filter Shaker Switch is located on the console to the right of the steering wheel in the SWEEPING section.
NOTE - (Variable Dump Machines Only)
THE MAIN BROOM SWITCH MUSTALWAYS BE PLACED IN THE OFF POSITION BEFORE SHAKING THE FILTER. FAILURE
TO DO SO WILL RESULT IN DUST REMAINING ON THE SURFACE OF THE FILTER ENVELOPES INSTEAD OF DROPPING
INTO THE HOPPER.
The button can be used when the ignition key is in the “ignition” position. The filter shaker control button is used during the sweeping
cycle and the hopper unloading cycle. Use the filter shaker control switch to remove dust from the filter. Use the following procedures
to operate the filter shaker control switch:
1. After the machine has made a long sweeping run, turn the broom switch to the “OFF” position.
2. Push the filter shaker control switch for 5 to 15 seconds to allow the filter to unload.
3. Turn the broom switch to the “ON” position. Repeat this procedure after each long sweeping run.
NOTE - (Variable Dump Machines Only)
The main broom, side broom, dust control and filter shaker turn off automatically when the hopper is dumping and/or the
dump door is in a closed position. SEE HOPPER LIFT and HOPPER DUMP DOOR.

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OPERATIONS OF CONTROLS AND GAUGES
P-4865 FIGURE 5
HOURMETER OIL PRESSURE
FUEL GAUGE VOLTMETER
WATER TEMPERATURE
WATER
TEMP
100
170
°F 195 220
280
77 91104
138
°C
0
1/4 1/2
FUEL BATTERY
10
12 14
16
-+
HOURS
00
001
1/10
PSI
0
20 40 60
80
278
553
kPa
OIL
PRESS
WATER TEMPERATURE GAUGE
TheWaterTemperatureGauge is located on the console panel above the steering wheel in thegaugecluster. The gaugeismechanical
and activated by a sender in the engine. It displays the engine coolant temperature in Fahrenheit.
HOUR METER
TheHourMeterislocatedontheconsolepanelabovethesteeringwheelinthegaugecluster.Thismeterisactivatedwhentheenginebegins
running. The meter indicates actual “run” time of the machine.The meter can used to determine machine maintenance intervals.
FUEL GAUGE
The Fuel Gauge is located on the console panel above the steering wheel in the gauge cluster. This gauge indicates the level of fuel
contained in the fuel tank.
OIL PRESSURE GAUGE
The Oil Pressure Gauge is located on the console panel above the steering wheel in the gauge cluster. The gauge is mechanical and
activated by a sender in the engine. It displays the engine oil pressure in PSI.
VOLT METER
The Volt Meter is located on the console panel above the steering wheel in the gauge cluster. The gauge indicates the charge level of
the battery.
SCRUB BRUSHES SWITCH
The Brushes Switch is located on the console to the left of the steering wheel in the “SCRUBBING” section. This switch in the position
marked“LOWER”willlowerthescrubbrushdeckandactivatethethreescrubbrushes.TheBrushRotationSwitchandtheBrushPressure
Switchcannotbe activated unless this switch is in the “LOWER” position.Thisswitchin the “RAISE” position will stop the brushes from
rotating and raise the scrub brush deck.

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HIGH
RECOVERY
LOW
SOLUTION
SCRUB
BRUSHES
SQUEEGEE
BLADE
BRUSH
PRESSURE BRUSH
ROTATION
LOWER
RAISE
NORMAL
HEAVY REVERSED
SCRUBBING
SQUEEGEE
BLADE LIFT
SCRUB BRUSH
LIFT
BRUSH
ROTATION
BRUSH
PRESSURE
RECOVERY HIGH
WARNING LIGHT
LOW SOLUTION
WARNING LIGHT
P-4854 FIGURE 6
OPERATIONS OF CONTROLS AND GAUGES
BRUSH ROTATION SWITCH
The Brush Rotation Switch is located on the console to the left of the steering wheel in the “SCRUBBING” section. This switch reverses
the rotation of the scrub brushes. This switch has two positions, “NORMAL” and “REVERSED”.This switch can not be activated unless
the Scrub Brush Lift Switch is in the “LOWER” position. The switch will light when activated.
BRUSH PRESSURE SWITCH
The Brush Pressure Switch is located on the console to the left of the steering wheel in the “SCRUBBING” section. This switch applies
additional downward pressure to the scrub brushes. This switch has two positions, “NORMAL” and “HEAVY”. This switch can not be
activated unless the Scrub Brush Lift Switch is in the “LOWER” position. The switch will light when the switch can be activated.
SQUEEGEE BLADE SWITCH
The Squeegee Blade Switch is located on the console to the left of the steering wheel in the “SCRUBBING” section. This switch in the
position marked “LOWER” will lower the squeegee and activate the squeegee vacuum. This switch in the “RAISE” position will stop the
squeegeevacuum and raise the squeegee.Aswitch activatedby the forward-reverse foot pedal willautomatically raise the squeegeeif
it is in the lowered position and the machine is in reverse.
HIGH RECOVERY WARNING LIGHT
The High Recovery Warning Light is located on the console to the left of the steering wheel beside the
“SCRUBBING” section. The recovery warning light will illuminate approximately 5 minutes before the recovery tank is full, giving ample
time to complete the scrubbing cycle before the mechanical float shuts off the vacuum to the recovery tank.
LOW SOLUTION WARNING LIGHT
TheLowSolutionWarningLightislocatedontheconsoletotheleftofthesteeringwheelbesidethe“SCRUBBING”section.TheSolution
Warning Light will illuminate when the solution tank is empty, marking the end of the
scrubbing cycle.

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LOWER
RAISE
HOPPER
OPEN
CLOSE
DUMP
DOOR
HIGH
FLOAT
EEP
UP
LOW
OFF
SWEEPING SOLUTION
CONTROL
HOPPER
LIFT
DUMP DOOR
OPEN
MAIN BROOM
LIFT
SOLUTIO
N
CONTROL
P-4851 FIGURE 7
OPERATIONS OF CONTROLS AND GAUGES
HOPPER LIFT - (Variable Machines Only)
The Hopper Lift Lever is located to the left of the steering wheel on the left side of the driver compartment. This lever, which is marked
“HOPPER”, raises and lowers the debris hopper to ease unloading.
WARNING
The hopper may drop unexpectedly and cause injury, always engage the safety arm before working under the hopper.
HOPPER SAFETY LOCKARM (Variable Dump Only)
WARNING
When the hopper is raised the safety arm must be engaged before any work is done under the
hopper
The Hopper Safety LockArm is located under the hopper assembly.After the work is complete, the safety arm must be disengaged.
HOPPER DUMP DOOR - (Variable Dump Machines Only)
The Hopper Dump Door Lever is located to the left of the steering wheel on the left of the driver compartment. This lever opens and
closes the hopper door. This lever is located below the Hopper Lift Door and is marked “DUMP DOOR”.
MANUAL DUMP HOPPER - (Manual Dump Hopper Only)
The Manual Dump Hopper Lever is located under the front bumper. To dump debris, pull the manual dump lever all the way to the
positionmarked open.Leavethe handleinthe dumppositionand backthemachine offthepileof debris.Whenclear ofthedebris, pull
the manual dump lever to the position marked closed.
SOLUTION CONTROL
To apply solution to the scrubbing brushes, push the solution control lever forward until the desired setting is reached. The solution
rate is continuously variable from off to approximately 1-3/4 GPM at low and 3-1/2 GPM at high. To stop application of solution, pull
back on the lever until it stops at the “off” position. The solution warning light will illuminate when the solution tank is empty, marking
the end of the scrubbing cycle.
NOTE
For best results, discontinue application of solution 10 feet
before stopping or making a 90° or 180° turn.
SWEEPING BROOM LIFT CONTROL
The main broom lift control is located to the left of the driver seat.
To lower the main broom, grasp the lever and pull back to clear the
locking notch. Move the lever forward to the first or second notch in
theelongatedslot. Thefirstnotch,“SWEEP”,isfornormalsweeping
(2to 3 inch [5to8cm.] broom pattern).The second notch,“FLOAT”,
is for heavy sweeping (4 to 5 inch [10 to 13 cm.] broom pattern).
Toraisethemainbroom,pulltheleverbackandslideintothelocking
notch. You may operate the main broom in either the “SWEEP” or
“FLOAT” position. However, the “SWEEP” position should be used
for normal sweeping and will result in increased broom life. The
“FLOAT” position should be used only when sweeping extremely
uneven areas.
NOTE - (Variable Dump Machines Only)
Aswitch triggered by the hopper and dump door position
controls the sweeping functions, main broom, side broom,
dust control, and filter shaker. The hopper must be down and
the dump door open before these functions
will work.

14 - FORM NO. 56041667 American-Lincoln Technology
7765 / 7760
PARKING BRAKE
LOCKED
POSITION
P-4888 FIGURE 8 P-4887 FIGURE 9
OPERATIONS OF CONTROLS AND GAUGES
MACHINE RPMs
IDLE “NO LOAD”
SWEEPER/ Gas/LP 950 2050
SCRUBBER (1 speed) Diesel 950 2150
SWEEPER Gas/LP 1st 950 2050
(2 speed levels) 2nd 950 2450
Diesel 1st 950 2150
2nd 950 2550
THROTTLE CONTROL
The throttle control is located on the left side console. Gas and LPequipment have a throttle switch. Diesel versions have a lever.
To operate the diesel: For full throttle, grasp the lever and push up and right to the locking notch. To reduce to idle, grasp the lever
and push it up and to the left (away from the locking notch). Let the lever lower until it rests at the bottom of the slot. “Load” (brooms
and/or brushes and/or dust control operating) and “No Load” (brooms, brushes & dust control off) RPMs are the same for gas and LP
equipment; The will be a slight drop between “Load” and “No Load” RPMs with diesels. Always return the throttle switch/lever to the
idle position before turning off the key to stop the engine.
CHECK ENGINE LIGHT (MIL) - Gas, LP Only
The check engine light (MIL) is located on the left side console. If the light comes on, it indicates a problem with the engine.
Go to the GM Engine Service Manual, Section 7, for directions on how to diagnose the problem.
PARKING BRAKE
Theparkingbrakeleverislocatedintheleftsideofthedrivercompartmentfloor.Thislever,whenraisedtotheuprightposition,will“lock”
the foot brake pedal in the down position.
FOOT BRAKE
The foot brake pedal is located to the right of the steering column on the floor of the driver compartment. The foot brake on the front
wheels is a mechanical system actuated by the brake pedal.

American-Lincoln Technology FORM NO. 56041667 - 15
7765 / 7760
P-4690 FIGURE 10
REVERSE
FORWARD
OPERATIONS OF CONTROLS AND GAUGES
ACCELERATOR & DIRECTIONAL CONTROL PEDAL
The accelerator and directional control pedal is located on the floor of the driver compartment, to the right of the brake pedal. The
accelerator and directional control pedal controls machine direction and travel speed.
1. Put foot pressure on the upper portion of the pedal. The machine will move forward.
2. Increase the foot pressure on the upper portion of the pedal to increase the forward speed.
3. Put foot pressure on the lower portion of the pedal. The machine will move in reverse.
4. Increase the foot pressure on the lower portion of the pedal to increase the reverse speed.
5. To stop the machine, put light foot pressure on the opposite end of the accelerator and directional control pedal. If the machine is
moving forward put light foot pressure on the lower portion of the pedal. If the machine is moving in reverse put light foot pressure on
the upper portion of the pedal.
BACKUPALARM SWITCH
Thisswitch is locatedunderthe lower sectionoftheaccelerator anddirectionalcontrolpedal and operatesthebackup alarm.Thealarm
makes a loud audible noise when the machine is being driven in reverse.
SEAT ADJUSTMENT
This lever is located on the right of the seat. This lever allows the seat to be adjusted forward or back when the lever is moved.

16 - FORM NO. 56041667 American-Lincoln Technology
7765 / 7760
SOLUTION HIGH
WARNING LIGHT
DETERGENT
FLOW KNOB
RECYCLING SYSTEM
ON/OFF SWITCH
DETERGENT LOW
WARNING LIGHT
ON
OFF
P-4895 FIGURE 11
SCRUBBING SYSTEM OPERATING INSTRUCTIONS
THE ESP RECYCLING CONTROL PANEL
THE ESP RECYCLING SYSTEM ON/OFF SWITCH
This switch turns the ESP recycling system on and off.
SOLUTION HIGH WARNING LIGHT
The solution high warning light will come on if the solution tank is too full of water from the recycling system.
DETERGENT LOW WARNING LIGHT
The detergent light will illuminate when the detergent tank is low, warning the operator to add detergent.
DETERGENT FLOW KNOB
Thisrotaryknobcontrolsthedetergentflowintothescrubbingsolution. The operatormaychoosefromanydetergentsetting,forlightto
heavy cleaning applications. The detergent light will illuminate when the detergent tank is low, warning the operator to add detergent.

American-Lincoln Technology FORM NO. 56041667 - 17
7765 / 7760
RECOVERY
TANK
RECOVERY
TANK
RECOVERY
TANK
RECOVERY
TANK
SOLUTION
TANK
SOLUTION
TANK
SOLUTION
TANK
DETERGENT
TANK
DETERGENT
TANK
BAFFLE
NON-RECYCLING
NON-RECYCLING
RECYCLING
RECYCLING
SOLUTION
TANK RECOVERY
TANK
FILTER
FLOW VALVE
ORIFICE
AUTOFIL VALVE
CHECK
VALVE
SCRUB
BRUSH SQUEEGEE
FILL COUPLING
FLOOR CONTACT
FILTER
SOLUTION
PUMP
SEPARATOR
DETERGENT
PUMP
DETERGENT
TANK
P4759a
P-4795 FIGURE 13
P-4759a FIGURE 14
SOLUTION
LINE
SOLUTION
LINE
SOLTUION
TANK
SOLTUION
TANK
RECOVERY
TANK
RECOVERY
TANK
VACUU
MVACUUM
SCRUBBING
BRUSHES
SCRUBBING
BRUSHES
P-5103 FIGURE 15
SCRUBBING SYSTEM OPERATING INSTRUCTIONS
THE SCRUBBING SYSTEM - HOW IT WORKS
Therearetwoscrubbingsystemsavailableforthe7765/7760machine,thenon-recyclingorstandardscrubbingsystemandtherecycling
or ESP scrubbing system.
THE NON-RECYCLING OR STANDARD SCRUBBING SYSTEM - HOW IT WORKS
During the scrubbing process (shown in Figure 14), detergent solution water from the solution tank is fed to the solution line. There it is
fed to the floor where three disc scrubbing brushes work to dislodge soil.
After scrubbing, the dirty solution is vacuumed from the floor and discharged into the containment chamber in the forward portion of the
recovery tank, where a system of baffles helps to clarify the solution. Sensors in each tank will indicate by lights on the control panel
when the water in the solution tank is too low or when the water in the recovery tank is too high.

18 - FORM NO. 56041667 American-Lincoln Technology
7765 / 7760
RECOVERY
TANK
RECOVERY
TANK
RECOVERY
TANK
RECOVERY
TANK
SOLUTION
TANK
SOLUTION
TANK
SOLUTION
TANK
DETERGENT
TANK
DETERGENT
TANK
BAFFLE
NON-RECYCLING RECYCLING
P-4795-1 FIGURE 16
SCRUBBING SYSTEM OPERATING INSTRUCTIONS
THE RECOVERY OR ESP SCRUBBING SYSTEM - HOW IT WORKS
Duringthe scrubbingprocess (showninFigure16),filtered waterfrom thesolutiontankisfedtothe solutionline, whereitcombineswith
detergent from the metering pump. This mixture is then fed to the floor where three disc scrubbing brushes work to dislodge soil.
After scrubbing, the dirty solution is vacuumed from the floor and discharged into the containment chamber in the forward portion of the
recoverytank,whereasystemofbaffleshelpstoclarifythesolutiononitswaytothepumpingchamberintherearoftherecoverytank.
Atintervals, asystemof sensorsactivatesthe recyclingpump, whichsendsfilteredsolution fromthepumping chamberon itswayto the
solution tank. Here, it is ready to be mixed with fresh, metered detergent and repeat the cycle.

American-Lincoln Technology FORM NO. 56041667 - 19
7765 / 7760
HOPPER
LIFT LEVER
HOPPER
DOOR LEVER
P-5104 FIGURE 18
P-5105 FIGURE 19
DUST CONTROL OPERATING INSTRUCTIONS
THE VARIABLE DUMP SWEEPINGAND DUST CONTROL SYSTEMS - HOW THEY WORK
Variable Dump 7765/7760 machines are equipped with a sweeping and dust control system. Figure 18 shows the highest position for
the variable dump.
The debris from sweeping is thrown into the hopper (Figure 19). The baffle system that is built into the variable dump debris hopper is
designed to minimize dust in the air while the machine is sweeping. The impeller vacuum fan pulls the lighter dust up and through a
baffle system. The Pre-Clean Flap separates the heavier dust particles to an area below the filters. The dust filters capture the lighter
dustparticles.Thisallowsthedustfilterstoremain cleanerandneedlessshaking toremovedust.Whenthedustfiltersbecomeclogged
the filter shaker switch should be pushed to start the dust shaker cycle. This will extend the life of the filters.
NOTE
TURN MAIN BROOM OFF FIRST

20 - FORM NO. 56041667 American-Lincoln Technology
7765 / 7760
OPERATING INSTRUCTIONS
FILLING THE SOLUTION TANK
NON-RECYCLING or Standard Scrubbing System
1. Make sure the solution control lever is in the “Off” (rear) position.
2. Open the solution tank cover (right hand side).
3. Fill the tank with 100 gallons of water and the correct mixture ofAmerican-Lincoln #100 Industrial Cleaner for the job.
4. Close the solution tank cover.
RECYCLING or ESP System
1. Make sure the solution control lever is in the “Off” (rear) position.
2. Open the solution tank cover (right hand side).
3. Fill the solution tank as outlined above with 100 gallons of pure water.
4. Fill the detergent tank with 5 gallons ofAmerican-Lincoln #100 Industrial Cleaner.
5. Close the solution tank cover.
NOTE
Fill recovery tank halfway with water for the ESP system
WARNING
To prevent over-sudsing and machine damage,
use onlyAMERICAN-LINCOLN Industrial Cleaning Solution #100.
WARNING
DO NOT put gasoline, combustible or other flammable material
in the solution, recovery or detergent tanks.
NOTE
Before starting the engine, perform the pre-start checklist.
PRE-START CHECKLIST
1. Clean engine air filter element if needed
2. Check engine oil level
3. Check radiator coolant level
4. Check hydraulic fluid level
5. Check fuel level
6. Check all systems for leaks
7. Check brakes and controls for proper operation
BEFORE STARTING ENGINE
1. Set parking brake
2. Make sure all controls are in the “Off” position
TO START ENGINE
1. Be sure accelerator and directional control pedal is in neutral.
2. Turn key to “On” position and hold it until the engine starts.
3. If engine fails to start after following the above procedures, refer to Engine Manual.
WARNING
The manufacturer does not advise storing the machine in below-freezing temperatures unless all fluids have been drained
from the detergent, solution and recovery tanks and associated systems. When machine has been stored in below-freezing
temperatures, run engine at lowest possible settings and let machine sit 5-10 minutes to warm engine and hydraulic oil.