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Page 1

7765 / 7760

SCRUBBER/SWEEPER

7765: 505-255, 505-258, 505-256, 505-259, 505-257, 505-260

7760: 505-255CE, 505-258CE, 505-257CE, 505-260CE

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.

Form Number 56041667

Revised 1/07

English

Page 2

TABLE OF CONTENTS

TABLE OF CONTENTS .............................................................................................................................................2-3

INTRODUCTION ........................................................................................................................................................4

INTRODUCTION ...............................................................................................................................................4

PARTS AND SERVICE .....................................................................................................................................4

NAMEPLATE .....................................................................................................................................................4

UN-CRATING ....................................................................................................................................................4

MACHINE OPERATION .............................................................................................................................................5

PREPARING THE MACHINE FOR OPERATION .............................................................................................5

CAUTIONS AND WARNINGS ...................................................................................................................................6

CONSIGNES DE PRUDENCE ET DE SECURITE ....................................................................................................7

OPERATION OF CONTROLS AND 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

FUEL GAUGE ...................................................................................................................................................11

OIL PRESSURE GAUGE ..................................................................................................................................11

VOLT METER ...................................................................................................................................................11

SCRUB BRUSHES SWITCH ............................................................................................................................11

BRUSH ROTATION SWITCH ...........................................................................................................................12

BRUSH PRESSURE SWITCH ..........................................................................................................................12

SQUEEGEE BLADE SWITCH ..........................................................................................................................12

HIGH RECOVERY WARNING 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 & DIRECTIONAL CONTROL PEDAL ....................................................................................15

BACK-UP ALARM SWITCH ..............................................................................................................................15

SEAT ADJUSTMENT ........................................................................................................................................15

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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

RECOVERY OR ESP SYSTEM - HOW IT WORKS .........................................................................................18

THE SWEEPING & DUST CONTROL SYSTEM - HOW IT WORKS ...............................................................19

OPERATING INSTRUCTIONS ..................................................................................................................................20

FILLING THE SOLUTION TANK - NON-RECYCLING (STANDARD) ..............................................................20

FILLING THE SOLUTION TANK - ESP ............................................................................................................20

PRE-START CHECKLIST .................................................................................................................................20

BEFORE STARTING THE ENGINE ..................................................................................................................20

STARTING THE ENGINE .................................................................................................................................20

POST-START CHECKLIST ...............................................................................................................................21

TRANSPORTING THE MACHINE ....................................................................................................................21

BEGINNING THE CLEANING OPERATION ....................................................................................................21

HELPFUL HINTS FOR CLEANING OPERATION ............................................................................................22

POST-OPERATION & CLEAN-UP INSTRUCTIONS .................................................................................................23

TO STOP THE CLEANING OPERATION .........................................................................................................23

POST-OPERATION CHECKLIST .....................................................................................................................23

TO DRAIN THE SOLUTION TANK ...................................................................................................................23

TO CLEAN THE SOLUTION TANK ..................................................................................................................23

TO DRAIN THE RECOVERY TANK ..................................................................................................................23

TO CLEAN THE RECOVERY TANK .................................................................................................................24

TO EMPTY THE DEBRIS HOPPER .................................................................................................................25

TOWING INSTRUCTIONS ...............................................................................................................................25

SERVICE CHART ......................................................................................................................................................26

GENERAL MACHINE MAINTENANCE .....................................................................................................................28

LUBRICATION ..................................................................................................................................................28

ENGINE ............................................................................................................................................................29

MAIN BROOM REMOVAL ................................................................................................................................29

MAIN BROOM LEVEL ADJUSTMENT ..............................................................................................................30

ADJUSTING MAIN BROOM WEAR PATTERN ................................................................................................30

SIDE BROOM LEVEL ADJUSTMENT ..............................................................................................................30

SIDE BROOM REPLACEMENT .......................................................................................................................30

FLAPS ...............................................................................................................................................................31

SCRUB BRUSH REPLACEMENT ....................................................................................................................32

COVERS AND 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

This manual will help you get the most from your American-Lincoln™ - Alto sweeper / scrubber. Read it thoroughly before operating the machine.

P ARTS AND 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, afﬁ x 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 speciﬁ cation 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 ﬁ le 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 ﬁ ll 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 ﬁ ll level should be two (2) inches (5 cm.) below ﬁ ller neck assembly. If oil is required, add HYDRAULIC FLUID ONLY, automatic transmission ﬂ uid FORD type “F”. After the ﬁ rst 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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CAUTIONS AND 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

Speciﬁ c Cautions and Warnings are included to warn you of potential danger of machine damage or bodily harm.

DANGER!

• This machine emits exhaust gases (carbon monoxide) that can cause serious injury or death, always provide adequate

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 ﬂ ammable cleaning agents, operate the machine on or near these agents, or operate in areas where ﬂ ammable

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 scariﬁ er discs and grinding stones. American-Lincoln™ - Alto will not be held responsible for any damage to

ﬂ oor surfaces caused by scariﬁ ers 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 ﬁ rst 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™ - Alto utilise les symboles reproduits ci-dessous pour attirer l’attention de l’opérateur sur des situations potentiellement 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 !

Ce symbole est utilisé pour attirer l’attention de l’opérateur sur une situation qui pourrait entraîner des dommages corporels 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 spéciﬁ ques 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 !

• Les gaz d’échappement (monoxyde de carbone) évacués par la machine peuvent entraîner de graves dommages corporels, voire

la mort. Veillez donc toujours à bénéﬁ cier d’une ventilation sufﬁ sante lorsque vous utilisez la machine.

ATTENTION !

• Cette machine ne pourra être utilisée que par du personnel parfaitement entraîné et dûment autorisé.

• Evitez les arrêts subits lorsque la machine est chargée et se trouve sur des rampes ou des plans inclinés. Evitez les virages serrés. 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 aﬁ n 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 inﬂ ammables, ne faites pas fonctionner la machine à proximité de ces agents ou d’autres liquides

inﬂ ammables.

• 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 scariﬁ cateur 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.

• Faites attention lorsque vous déplacez cette machine dans un endroit où la température peut descendre sous 0°. Car l’eau contenue dans

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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OPERATIONS OF CONTROLS AND GAUGES

WATER TEMPERATURE GAUGE

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

THROTTLE

CHECK ENGINE LIGHT (GAS/LP)

PARKING BRAKE

GAS/LP DIESEL

TURN SIGNAL

HOUR METER

FUEL GAUGE

OIL PRESSURE GAUGE

VOLT METER

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

P-5101ecp FIGURE 2

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 * TAIL LIGHTS * 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

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 ﬂ asher will activate when the turn signal lever is pulled out.

GLOW PLUG SWITCH (Diesel)

Under no circumstances should any other unauthorized starting aids be used at the same time as Glow Plugs. The Glow Plug Switch is 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 (OPTIONAL FOR 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.

IGNITION

GLOW PLUG SWITCH

(DIESEL ONLY)

LIGHTS

HORN

SIDE BROOM LIFT

P-4853ecp FIGURE 3

American-Lincoln Technology FORM NO. 56041667 - 9 7765 / 7760

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OPERATIONS OF CONTROLS AND GAUGES

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 MUST ALWAYS 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 ﬁ lter shaker control button is used during the sweeping cycle and the hopper unloading cycle. Use the ﬁ lter shaker control switch to remove dust from the ﬁ lter. Use the following procedures to operate the ﬁ lter shaker control switch:

1. After the machine has made a long sweeping run, turn the broom switch to the “OFF” position.

2. Push the ﬁ lter shaker control switch for 5 to 15 seconds to allow the ﬁ lter to unload.

SWEEPING

MAIN

BROOM

DUST

CONTROL

MAIN

BROOM

DUST

CONTROL

OFF

SIDE

BROOM

FILTER

SHAKER

SIDE BROOM

FILTER SHAKER

P-4862 FIGURE 4

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 ﬁ lter 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

WATER TEMPERATURE GAUGE

The Water Temperature 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 coolant temperature in Fahrenheit.

HOUR METER

The Hour Meter is located on the console panel above the steering wheel in the gauge cluster. This meter is activated when the engine begins 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.

WATER TEMPERATURE

°F

195

100

170

220

280

104

°C

138

WATER

TEMP

HOURS

001

1/10

HOURMETER

P-4865 FIGURE 5

FUEL GAUGE

1/2

1/4

FUEL BATTERY

PSI

278

553

kPa

OIL

PRESS

OIL PRESSURE

VOLTMETER

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” will lower the scrub brush deck and activate the three scrub brushes. The Brush Rotation Switch and the Brush Pressure Switch can not be activated unless this switch is in the “LOWER” position. This switch in the “RAISE” position will stop the brushes from rotating and raise the scrub brush deck.

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Page 12

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 squeegee vacuum and raise the squeegee. A switch activated by the forward-reverse foot pedal will automatically raise the squeegee if 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 ﬂ oat shuts off the vacuum to the recovery tank.

LOW SOLUTION WARNING LIGHT

The Low Solution Warning Light is located on the console to the left of the steering wheel beside the “SCRUBBING” section. The Solution Warning Light will illuminate when the solution tank is empty, marking the end of the scrubbing cycle.

RECOVERY HIGH WARNING LIGHT

LOW SOLUTION WARNING LIGHT

HIGH

RECOVERY

LOW

SOLUTION

SCRUBBING

SCRUB

BRUSHES

BRUSH

PRESSURE

NORMAL

SQUEEGEE

BLADE

LOWER

RAISE

BRUSH

ROTATION

SQUEEGEE BLADE LIFT

SCRUB BRUSH LIFT

BRUSH ROTATION

HEAVY

REVERSED

BRUSH PRESSURE

P-4854 FIGURE 6

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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 LOCK ARM (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 Lock Arm 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 position marked open. Leave the handle in the dump position and back the machine off the pile of debris. When clear of the debris, 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 solutio n, 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 ﬁ rst or second notch in the elongated slot. The ﬁ rst notch, “SWEEP”, is for normal sweeping (2 to 3 inch [5 to 8 cm.] broom pattern). The second notch, “FLOA T”, is for heavy sweeping (4 to 5 inch [10 to 13 cm.] broom pattern).

T o raise the main broom, pull the lever back and slide into the locking 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)

A switch triggered by the hopper and dump door position

controls the sweeping functions, main broom, side broom,

dust control, and ﬁ lter shaker. The hopper must be down and

the dump door open before these functions

will work.

HOPPER

LIFT

DUMP DOOR

OPEN

MAIN BROOM

LIFT

LOWER

RAISE

HOPPER

OPEN

DUMP DOOR

SWEEPING

SOLUTIO CONTROL

HIGH

FLOAT

EEP

LOW

OFF

SOLUTION CONTROL

P-4851 FIGURE 7

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OPERATIONS OF CONTROLS AND GAUGES

THROTTLE CONTROL

The throttle control is located on the left side console. Gas and LP equipment 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.

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

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

The parking brake lever is located in the left side of the driver compartment ﬂ oor. This lever , when raised to the upright position, 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 ﬂ oor of the driver compartment. The foot brake on the front wheels is a mechanical system actuated by the brake pedal.

LOCKED POSITION

PARKING BRAKE

P-4888 FIGURE 8

14 - FORM NO. 56041667 American-Lincoln Technology

P-4887 FIGURE 9

7765 / 7760

Page 15

REVERSE

OPERATIONS OF CONTROLS AND GAUGES

FORWARD

P-4690 FIGURE 10

ACCELERATOR & DIRECTIONAL CONTROL PEDAL

The accelerator and directional control pedal is located on the ﬂ oor 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.

BACKUP ALARM SWITCH

This switch is located under the lower section of the accelerator and directional control pedal and operates the backup alarm. The alarm 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.

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SCRUBBING SYSTEM OPERATING INSTRUCTIONS

SOLUTION HIGH WARNING LIGHT

OFF

RECYCLING SYSTEM ON/OFF SWITCH

P-4895 FIGURE 11

THE ESP RECYCLING CONTROL PANEL

THE ESP RECYCLING SYSTEM ON/OFF SWITCH

This switch turns the ESP recycling system on and off.

DETERGENT FLOW KNOB

DETERGENT LOW WARNING LIGHT

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

This rotary knob controls the detergent ﬂ ow into the scrubbing solution. The operator may choose from any detergent setting, for light to heavy cleaning applications. The detergent light will illuminate when the detergent tank is low, warning the operator to add detergent.

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RECOVERY

TANK

RECOVERY

TANK

SOLUTION TANK

DETERGENT TANK

BAFFLE

NON-RECYCLING

RECYCLING

SOLUTION

LINE

SOLTUION

TANK

RECOVERY

TANK

MVACUUM

SCRUBBING BRUSHES

TANK

SCRUBBING SYSTEM OPERATING INSTRUCTIONS

DETERGENT TANK

SOLUTION TANK

RECOVERY

TANK

NON-RECYCLING

RECYCLING

P-4795 FIGURE 13

THE SCRUBBING SYSTEM - HOW IT WORKS

There are two scrubbing systems available for the 7765/7760 machine, the non-recycling or standard scrubbing system and the recycling 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 ﬂ oor where three disc scrubbing brushes work to dislodge soil.

After scrubbing, the dirty solution is vacuumed from the ﬂ oor and discharged into the containment chamber in the forward portion of the recovery tank, where a system of bafﬂ es 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.

ORIFICE

CHECK VALV E

DETERGENT

TANK

DETERGENT

PUMP

P4759a

SOLUTION

TANK

SOLUTION

PUMP

FILTER

FLOW VALVE

SEPARATOR

SCRUB BRUSH

FLOOR CONTACT

FILTER

AUTOFIL VALVE

FILL COUPLING

SQUEEGEE

RECOVERY

TANK

SOLUTION

LINE

SOLTUION

TANK

RECOVERY

TANK

VACUU

SCRUBBING BRUSHES

P-4759a FIGURE 14

P-5103 FIGURE 15

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RECOVERY

TANK

RECOVERY

TANK

SOLUTION TANK

DETERGENT TANK

BAFFLE

NON-RECYCLING RECYCLING

SCRUBBING SYSTEM OPERATING INSTRUCTIONS

THE RECOVERY OR ESP SCRUBBING SYSTEM - HOW IT WORKS

During the scrubbing process (shown in Figure 16), ﬁ ltered water from the solution tank is fed to the solution line, where it combines with detergent from the metering pump. This mixture is then fed to the ﬂ oor where three disc scrubbing brushes work to dislodge soil.

After scrubbing, the dirty solution is vacuumed from the ﬂ oor and discharged into the containment chamber in the forward portion of the recovery tank, where a system of bafﬂ es helps to clarify the solution on its way to the pumping chamber in the rear of the recovery tank. At intervals, a system of sensors activates the recycling pump, which sends ﬁ ltered solution from the pumping chamber on its way to the solution tank. Here, it is ready to be mixed with fresh, metered detergent and repeat the cycle.

DETERGENT TANK

RECOVERY

TANK

SOLUTION TANK

RECOVERY

TANK

P-4795-1 FIGURE 16

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DUST CONTROL OPERATING INSTRUCTIONS

THE VARIABLE DUMP SWEEPING AND 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.

HOPPER LIFT LEVER

HOPPER DOOR LEVER

P-5104 FIGURE 18

P-5105 FIGURE 19

The debris from sweeping is thrown into the hopper (Figure 19). The bafﬂ e 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 bafﬂ e system. The Pre-Clean Flap separates the heavier dust particles to an area below the ﬁ lters. The dust ﬁ lters capture the lighter dust particles. This allows the dust ﬁ lters to remain cleaner and need less shaking to remove dust. When the dust ﬁ lters become clogged the ﬁ lter shaker switch should be pushed to start the dust shaker cycle. This will extend the life of the ﬁ lters.

NOTE

TURN MAIN BROOM OFF FIRST

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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 of American-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 of American-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 only AMERICAN-LINCOLN Industrial Cleaning Solution #100.

WARNING

DO NOT put gasoline, combustible or other ﬂ ammable 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 ﬁ lter element if needed

2. Check engine oil level

3. Check radiator coolant level

4. Check hydraulic ﬂ uid 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 ﬂ uids 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.

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OPERATING INSTRUCTIONS

POST-START CHECKLIST (Engine Running)

1. Check main and side brooms to make sure they are free of debris which will inhibit rotation & pick-up. NOTE: Always wear hand protection when cleaning debris from brooms and/or brushes.

2. Check squeegees to make sure there is no damage and they meet the ﬂ oor.

TO TRANSPORT MACHINE (No scrubbing or sweeping)

1. Be sure the brooms, brushes (scrub deck) and squeegee are in the “Up” position with all other controls in the “Off” position.

2. Release parking brake.

3. Push throttle control up.

4. Push forward on the directional control pedal to place the machine in motion.

5. Vary your foot pressure on the directional control pedal to obtain desired travel speed.

6. To stop, allow directional control pedal to return to neutral (centered) position. (Pedal will automatically return to neutral when

foot pressure is released). FOR NORMAL OPERATION, DEPRESS DIRECTIONAL CONTROL PEDAL WITH HEEL INTO NEUTRAL.

7. Push engine throttle down. Turn key to “Off”.

8. Set parking brake.

TO BEGIN THE CLEANING OPERATION

1. Choose the mode of operation (recycling ESP or non-recycling STANDARD) as dictated by the machine ﬁ ll or machine type.

2. Bring engine to full RPM.

3. Lower the main broom.

4. Lower the side broom.

5. Turn on the main and side brooms.

6. Sweep for the length of the machine.

7. Move recovery switch to the “On” position.

8. Lower the scrub brushes.

9. Lower squeegee to the “Lower” position.

10. Move solution control lever to the desired setting.

11. Turn on the Recovery Switch for the ESP Recycling system, if applicable.

12. Begin scrubbing operation. Single sweep and scrub the average ﬂ oor with light to medium soil. In this operation the cleaning is accomplished in one pass with

simultaneous solution feed, sweeping, scrubbing and dirty water pick-up. The rate of solution feed and the speed of travel required will vary with ﬂ oor condition. This knowledge will come with operator experience.

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HELPFUL HINTS FOR CLEANING OPERATION

SIDE AISLES

MAIN AISLE

P4134/0001

P-4134 FIGURE 23

Do not turn the steering wheel sharply when the machine is in motion. The sweeper is very

responsive to movement of the steering wheel. Do not make sudden turns.

Scrub in straight paths. Do not bump posts. Do not scrape the sides of the machine.

When the machine is in motion, do not push the directional/speed control pedal all the way forward.

This is the same as starting in “High” and will put a strain on the motor and drive system.

1. Plan your sweeping and scrubbing in advance. Try to arrange long runs with minimum stopping and starting.

Sweep debris from narrow aisles out into main aisle ahead of time. Do an entire ﬂ oor, or section at one

time.

2. Pick up oversize debris before sweeping.

3. Allow a few inches overlap of sweep and scrub paths. This will eliminate leaving dirty patches.

4. Don’t turn steering wheel too sharply when machine is in motion. The machine is very responsive to

movement of the steering wheel - so avoid sudden turns.

5. Try to follow as straight a path as possible. Avoid bumping into posts or scraping the sides of the machine.

6. When placing the machine in motion, avoid slamming the directional control pedal all the way forward quickly. This is equivalent to starting out in “HIGH” and puts needless strain on the engine and drive system.

7. Always allow the machine to warm up before operating in cold temperatures.

8. Periodically turn sweeping (main) broom end for end to prevent the bristles from “setting” in one direction.

SIDE AISLES

WARNING

NOTE

Replace sweeping broom when bristles are worn to 3-inch (8-cm.) length. Replace disc brushes when

bristles are reduced to 1/2 inch (1.3 cm) in length. Replace squeegee rubbers when all usable edges

have become rounded with wear, impairing the wiping action.

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POST-OPERATION & CLEAN-UP INSTRUCTIONS

TO STOP THE CLEANING OPERATION

Discontinue the cleaning operation whenever a solution or recovery warning or stop light is illuminated. The solution light will illuminate when the solution tank is empty. At this time, discontinue the scrubbing cycle, put all controls in position

for transport and drive to the drain area. See pages 30-32 for instructions on how to drain and clean the recovery and solution tanks, and empty the debris hopper.

The recovery warning light will illuminate approximately 5 minutes before loss of vacuum to the recovery tank. This warning period should give ample time to complete the scrubbing cycle and transport or scrub to the drain area.

NOTE

After stopping the engine, perform this post-operation checklist.

POST-OPERATION CHECKLIST

1. Clean debris hopper. 2. Check sweeping broom for wear or damage.

3. Check all ﬂ aps for wear, damage and adjustment. 4. Drain and clean solution tank (ESP system)

5. Clean solution ﬁ lter screen (ESP system) 6. Drain and clean recovery tank.

7. Clean recovery tank screens and ﬂ oats. 8. Check manifold and vacuum hoses for debris or obstructions, backﬂ ush if necessary.

9. Check scrub brushes for wear or damage. 10. Check rear and side squeegees for wear, damage and adjustment.

11. Fill fuel tank. 12. Check all systems for leaks.

TO DRAIN SOLUTION TANK (RECYCLING OPERATION) (ESP System)

Draining the solution tank is accomplished by a 4-foot (92 cm.) long drain hose located under the frame channel. T o drain the tank, lower the hose, remove the plug and drain. When the draining operation is completed, clean the solution tank as outlined below.

P-4766 FIGURE 20

TO CLEAN SOLUTION TANK (RECYCLING OPERATION) (ESP System)

Cleaning the solution tank is simpliﬁ ed by the large access cover . Flush all deposits from the tank, also ﬂ ush all probes and the solution line strainer to remove any deposits - remove strainer if necessary. When the cleaning operation is completed, plug and replace the hose. Close and secure covers.

TO DRAIN RECOVERY TANK

A 4-foot long drain hose for the recovery tank is located under the frame channel. To drain the tank, lower the hose, remove the plug and drain. Open the recovery tank and remove the drain plug. When the draining operation is completed, ﬂ ush and clean the recovery tank as outlined below.

American-Lincoln Technology FORM NO. 56041667 - 23 7765 / 7760

Page 24

POST-OPERATION & CLEAN-UP INSTRUCTIONS

TO CLEAN RECOVERY TANK

The large access cover on the recovery tank simpliﬁ es the cleaning process. Once the recovery tank lid is opened, tip out the tank. With the recovery tank in the tipped out position (ﬁ gure 20), ﬂ ush all sand, sludge, debris, etc. out of the tank with a water hose, then replace the tank and ﬂ ush the manifold, ball ﬂ oat screen and level switch to remove any deposits. The tank lid should be removed and cleaned approximately every 50 running hours.

WARNING

Do not attempt to ﬂ ush large amounts of tank debris through the drain hose - This will cause clogging and hamper future drainage. Always ﬂ ush the recovery tank with clean water at the end of each cleaning cycle. Never let debris accumulate,

settle and harden in the tank, tank lid,

or on associated hardware.

HOPPER LIFT LEVER

HOPPER DOOR LEVER

P-5104 FIGURE 21 P-4183 FIGURE 22

TOW CONTROL SHAFT

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Page 25

POST-OPERATION & CLEAN-UP INSTRUCTIONS

TO EMPTY DEBRIS HOPPER

1. Transport or sweep and scrub to the dump site.

2. Close the hopper dump door with the hopper dump lever.

3. Raise the hopper with the hopper lift lever to the desired level.

4. Move the machine forward, over the dumpster, if necessary.

5. Open the hopper dump door with the hopper dump lever.

6. Lower the hopper with the hopper lift lever to the normal operation position.

NOTE (Variable Dump Only)

The sweep functions - main broom, side broom, dust fan, and ﬁ lter shakers - only work when the hopper is down and the

dump door is open.

TOWING INSTRUCTIONS (See Figure 22)

1. Locate tow control shaft extension as shown in Figure 22. (See arrow)

2. To open hydraulic circuit to wheel drive motor, turn shaft 90° so that the ﬂ ats on the shaft are parallel to the front axle.

3. After towing, turn shaft 90° so that the ﬂ ats on the shaft are parallel to the pump centerline.

American-Lincoln Technology FORM NO. 56041667 - 25 7765 / 7760

Page 26

SERVICE CHART

For service assistance, consult the yellow pages under power sweepers and scrubbers. For best performance, replace worn parts with genuine American-Lincoln parts.

EVERY 8 HOURS or DAILY operation check and clean/adjust if necessary:

1. Inspect panel ﬁ lters for damage and clean.

2. Check engine oil level.

3. Check hydraulic ﬂ uid level.

4. Check radiator core for blockage.

5. Check all ﬂ aps for wear or damage.

6. Check brooms for wear or damage, adjust as required.

7. Check panel ﬁ lters (clean side) for leakage.

8. Check brake pedal and parking brake.

9. Check for LP/Diesel odor at connections.

10. Check water separator (Diesel).

11. Check engine air cleaner.

12. Check hydraulic oil ﬁ lter .

13. Check coolant level.

50 HOUR (WEEKLY) MAINTENANCE CHECKLIST

14. Solution tank (recycling or ESP system).

15. Solution ﬁ lter screen (recycling or ESP system).

16. Recovery tank. (Include cleaning of tank lid.)

17. Recovery tank screens and ﬁ lters.

18. Scrub brushes for wear or damage.

19. Rear and side squeegees for wear or damage.

20. Check tension on all belts.

21. Check battery electrolyte level. (Unless Maintenance-Free Battery)

22. Check all hydraulic hoses for wear or cuts.

23. Rotate main broom (end-to-end).

24. Clean or replace panel ﬁ lters.

Perform recommended engine maintenance (see engine manual if applicable).

100 HOUR MAINTENANCE CHECKLIST

25. Change crankcase oil.

26. Change engine oil ﬁ lter .

27. Lubricate drive wheel, l swivel wheel bearings, and steering rack guide (engine side above rear wheel).

MAKE SURE TO GREASE ZERK LOCATED ABOVE PINION RACK (See Rear Wheel Assy., Chapter 2)

28. Lubricate front wheel bearings.

29. Lubricate all moving joints.

30. Check brake pads for wear and adjust accordingly.

31. Lubricate all 6 (Diesel)/4 (Gas/LP) DANHOUSER Bushings with NAPA #765-1363 or equivalent anti-seize

lubricant. The bushings are located on the steering, scrub deck lift, squeegee lift, main broom lift, both threaded ends of the throttle cable and variable dump door cylinders. Perform recommended engine maintenance (see engine manual if applicable).

250 HOUR MAINTENANCE CHECKLIST

32. Lubricate squeegee casters.

33. Clean solution tank and ﬁ lter screen.

34. Replace engine air ﬁ lter element.

35. Flush radiator coolant system.

36. Remove spark plug - clean or replace (Gas/LP).

37. Check distributor and points - service or replace (Gas/LP).

38. Clean and lubricate governor linkage (Diesel).

39. Replace fuel ﬁ lter.

40. Replace hydraulic ﬁ lter element.

Perform recommended engine maintenance (see engine manual if applicable).

400 HOUR MAINTENANCE CHECKLIST

41. Clean hydraulic reservoir.

42. Clean hydraulic intake strainer.

43. Change hydraulic ﬂ uid.

Perform recommended engine maintenance (see engine manual if applicable).

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SERVICE CHART

13, 35

41, 42, 43

2, 25

8 15, 33 14

39 36, 37

11, 3 4 17

1, 7, 24

12, 40

28, 30

29 5 31 6, 23

American-Lincoln Technology FORM NO. 56041667 - 27 7765 / 7760

Page 28

GENERAL MACHINE MAINTENANCE

LUBRICATION

P-5114 FIGURE 24

100 Hour Lubrication

1. Lubricate drive wheel swivel, wheel bearings and steering rack guide.

2. Lubricate front wheel bearings.

3. Lubricate all moving joints.

4. Lubricate all 6 (Diesel)/4 (Gas/LP) DANHOUSER Bushings with NAPA #765-1363 or equivalent anti-

seize lubricant. The bushings are located on the steering, scrub deck lift, squeegee lift, main broom lift, both threaded ends of the throttle cable and the variable dump door cylinders.

250 Hour Lubrication

5. Lubricate squeegee casters.

6. Lubricate governor linkage (Diesel).

Use good grade multipurpose grease. Avoid using too much grease.

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GENERAL MACHINE MAINTENANCE

ENGINE

Read and follow all the instructions in the Engine Manual Section. Due to the nature of work being done by the machine, extra care must be taken to protect the engine from these elements. Check the oil each day before starting operations. Be sure to check the air ﬁ lter cap’s dust collector and empty as necessary. Also check the air cleaner and replace as conditions demand. Do not let the engine become coated with dust and dirt.

RIGHT,BROOM

CHAMBER DOOR

MAIN

BROOM

DRIVE

HUB

IDLER

ARM

RETAINING

BOLT

P-5116 FIGURE 28

TO REMOVE MAIN SWEEPING BROOM

1. Open the left broom chamber door.

2. Put the main broom control in the “SWEEP” position.

3. Remove the retaining bolt.

4. Remove the idler arm assembly.

5. Remove the main broom and discard.

6. Put a new main broom in the broom chamber.

7. Rotate the new broom to the right on the drive hub until it engages the drive hub broom tabs.

8. Put the idler arm assembly in place.

9. Put the retaining bolt in place and tighten.

10. Close the broom chamber door.

11. Start the engine.

12. Put the broom lever in the “SWEEP” position.

13. Let the broom sweep in place for 30 seconds.

14. Put the broom lever in the “UP” position.

15. Back the machine off the test spot.

16. Inspect the polished area where the broom swept, for broom bristle contact with the ﬂ oor. The area of

broom bristle contact with the ﬂ oor should be 2 to 3 inches (5 to 8 cm.) wide.

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GENERAL MACHINE MAINTENANCE

MAIN BROOM LEVEL ADJUSTMENT

The main broom level is factory set and shouldn’t need adjustment, if the level gets out of adjustment and the broom bristle contact pattern is not an even 2” to 3” (5 to 8 cm.) wide. Adjust the broom arm lift frame. The frame is supported by two ﬂ ange bearings. These bearings are located inside the broom doors. The carriage bolts on the two end ﬂ anges must be loosened. The frame can then be leveled and the bolts tightened.

HOW TO ADJUST MAIN BROOM WEAR PATTERN

When the bristles of the broom begin to wear out the following adjustments may be made to keep a 2-inch (5-cm.) broom pattern.

1. Loosen the nut located in the engine compartment.

2. Set the broom lever to the “Sweep” position and adjust the lock nut to obtain a 2-inch (5 cm) broom pattern. The lock nut will move the adjusting rod that adjusts the sweeping pattern of the broom for wear.

RAISE OR LOWER FOR WEAR ADJUSTMENT

FLOOR CONTACT AREA

FORWARD

SIDE BROOM

P-5117 FIGURE 29

SIDE BROOM LEVEL ADJUSTMENT

As the side broom wears, loosen the two wear adjusting bolts and slide the broom-motor assembly into a position so that the broom contacts the ﬂ oor at a 3 degree angle when lowered as shown in Figure 29.

SIDE BROOM REPLACEMENT

Put the side broom lift control in the “UP” position. Remove the retaining screw in the bottom middle of the side broom. Remove the side broom. Transfer the side broom ﬂ ange spacer and screws to the replacement side broom. Put the replacement side broom on the shaft. Put the retaining screw in position and tighten.

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1/16"

SET FLAP EVEN WITH FLOOR

P-4793 FIGURE 30

GENERAL MACHINE MAINTENANCE

FLAPS

The urethane and rubber ﬂ aps are susceptible to damage and should be inspected regularly and maintained in good condition. The side ﬂ aps are adjustable and should be maintained at approximately 1/16” (16 mm.) above the ﬂ oor. The front and rear ﬂ aps have no provision for adjustment.

All ﬂ aps should be replaced when worn or damaged to such an extent that they couldn’t perform their function.

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GENERAL MACHINE MAINTENANCE

P-4762 FIGURE 31

BRUSH LATCH

SCRUB BRUSH REPLACEMENT

1. Raise the scrub brush deck by pressing the “Scrub Brush” Switch on the instrument panel.

2. Press the brush latches in to release the scrub brush.

3. Remove old scrub brush.

4. Snap new brush into place.

COVERS AND LATCHES

The covers have been designed to allow access, either by hinge or removal, to all areas of the machine. No maintenance is required. For lubrication of latches see Lubrication Section.

SOLUTION WARNING LIGHT

The solution warning light will illuminate when the solution tank is empty. This part of the level control system requires no maintenance. If the system fails to operate, consult the Electrical Troubleshooting Guide.

RECOVERY WARNING LIGHT

The recovery warning will illuminate approximately 5 minutes before loss of vacuum to the recovery tank. This part of the level control system requires no maintenance, except for daily cleaning of the tank level switch. If the system fails to operate, consult the Electrical Troubleshooting Guide.

SOLUTION CONTROL (Non-Recycling or Standard)

The solution control lever controls the amount of solution applied to the scrubbing brushes. Except for a few drops of oil applied to the lever pivot every 100 hours, the system should require no major maintenance.

The solution control should shut off completely with the lever in the (rear) “off” position. If complete shut off does not occur, the control cable should be adjusted.

SOLUTION CONTROL (RECYCLING or ESP System)

In the recycling mode, the solution control lever is also used to activate the detergent pump. If the detergent pump fails to operate (engine running) when the solution control lever is moved into the low to high range, ﬁ rst check the circuit by manually activating the switch. If the detergent pump does not operate at this time, a further electrical or mechanical check is indicated. (See Electrical Troubleshooting Guide or Detergent Pump Troubleshooting).

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GENERAL MACHINE MAINTENANCE

RECYCLING PUMP ESP System

The recycling pump is located directly behind and under the recovery tank. The pump is electric and except for daily cleaning of the pump intake screens, it requires no regular maintenance.

NOTE

Do not run pump dry. The unit depends on the liquid pumped for lubrication.

RECYCLING (ESP) PUMP STORAGE

Always drain pump for extended storage, especially when freezing temperatures may be encountered.

REAR SQUEEGEE

The squeegee will require service when the inner edges of the blades become round with wear, impairing the wiping action or water pickup. To service the rear squeegee use the following steps:

1. Loosen the four aluminum knobs (item 10, these hold the squeegee tool to the squeegee support)

2. Remove the squeegee tool and turn upside down to service the blades or caster wheels. The squeegee

blades are designed to ﬂ ip over and use another unworn edge (item 5 & 6).

To service the blades:

1. Loosen the clamp bolts, which clamp items 8 & 9 together.

2. Loosen far enough to slip the end clamp brackets off the squeegee tool. This will allow ﬂ ipping the blades

or installing new blades.

3. Install blades so that outer blade is 3/16” longer than inner blades, this is achieved by assembling the top

edge of the blade against the squeegee tool weldment.

4. Reinstall squeegee clamp band and tighten clamp bolt tight.

APPLY NEVERSEIZE

P5165/9907

P-5165

SQUEEGEE CASTER WHEELS

Grease caster wheel zerks (2) on each caster should be greased each time the blades are serviced for a total of 3 caster wheels.

ADJUSTING CASTERS

Lower squeegee on a ﬂ at surface, making sure the rear squeegee blade is perpendicular to the surface. Adjust caster 3/16” above the ﬂ at surface, Lock jam nuts.

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GENERAL TROUBLESHOOTING

PROBLEM

Sweeping does not function

Poor water pick up at squeegee

Water spill from squeegee

PROBABLE CAUSE

1. Dump door closed

2. Hopper is raised

3. Hopper switch out of adjustment

1. Side or rear squeegee are worn or damaged

2. Clogging in water pick up

3. Air leaks in suction hose and connection

4. Air leaks at recovery tank cover and/or manifold gaskets

5. Poor vacuum

6. Drain hose or drain plug leakage or not closed properly..

1. Side squeegee blades, poor contact with floor

2. Squeegee blades worn or damages

3. Too much solution being applied before making turns

REMEDY

1. Open dump door

2. Lower hopper

3. Adjust hopper switch

1. Examine squeegee rubber blade for cuts or worn spots.

2. Repair or replace hose and connection

3. Repair or replace gaskets

4. Check vacuum motor

5. Check seal on recovery tank

6. Close, repair or replace drain plug in recovery tank.

1. Readjust blades for proper contact

2. Replace or adjust

3. Shut off solution flow 5' to 10'

Lack or suction at rear

4. Brushes rotating opposite direction

1. Clogged suction hose or pick up tool

2. Loose connections between suction hose and squeegee or between hoses or manifold inlet.

3. Vacuum motor not operating

4. Vacuum float cage clogged

5. Vacuum float shut off

4. Check position of switches.

1. Disconnect suction hose from squeegee; flush squeegee & hoses.

2. Check all hose connections for looseness or damage.

3. Check hydraulic motor in recovery

4. Clean perforated metal thoroughly

5. Excessive solution in recovery drain tank. Excessive foam build up, change cleaning chemical mixture. Use A-L approved materials.

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GENERAL TROUBLESHOOTING

PROBLEM

Poor scrubbing

Engine runs, but machine will not move on level ground

Machine moves slowly

PROBABLE CAUSE

1. Worn scrubbing brushes

2. Incorrect method of operation

3. Wrong cleaning agent or mixture

4. Poor solution distribution

1. Foot pedal and/or linkage jammed or not adjusted

2. Front wheels jammed or brakes locked

3. Hydraulic pump trouble

4. Rear wheel hydraulic motor, broken shaft key, broken shaft, ect.

1. Low hydraulic oil level

REMEDY

1. Inspect brushes. If worn to ½” (1.3cm) or less, replace all 3 brushes

2. Check scrubbing procedures, brush pressure, type of brush, solution flow, & cleaning chemical used. For extreme conditions double scrubbing may be necessary.

3. Use A-L recommended materials

4. Clean out distribution tube & metering

holes to brushes. Check feed hose & clean if necessary. Check valve & cable control system.

1. Check pedal linkage

2. Check wheels and brakes

3. Check & repair pump, check tow valve. See CESSNA information.

4. Check & repair. See Char-Lynn information

1. Add oil to reservoir

Hydraulic pump making excessive noise

2. Brake dragging

3. Hydraulic oil temp, too high

4. Worn hydraulic pump or drive wheel motor

1. Clogged inlet strainer or suction line

2. Air bubbles in hydraulic fluid

3. Hydraulic pump is worn or damaged

2. Check brakes

3. Check oil level, add SAE 5 (FORD Type F) ATF, if required

4. See hydraulic CESSNA

1. Clean inlet strainer. Drain & flush reservoir, if oil is dirty. Refill with clean SAE 5 (FORD Type F) ATF.

2. Check for low hydraulic fluid level, leaking fittings or hoses

3. See CESSNA Pump Section

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TECHNICAL SPECIFICATIONS (as installed and tested on the unit)

Model 7765 Petrol (VD) 7765 Petrol (MD)

7765 LPG (VD) 7765 LPG (MD)

7765 Diesel (VD) 7765 Diesel (MD)

Model No. 505-255 505-258

505-256 505-259

505-257 505-260 Sound Pressure Level (ISO 11201) dB (A) 89.4 89.4 Sound Power Level (ISO 3744) dB (A) Lwa 109.0 Lwa 109.0 Total Weight lbs/kg 4,350 / 1973 3,900 / 1769

Vibrations at the Hand Controls (ISO 5349-1) m/s2 0.89 m/s Vibrations at the Seat (EN 1032) m/s2 0.31 m/s

Gradeability Transport 14.1% (8°) 14.1% (8°) Cleaning 10.5% (6°) 10.5% (6°)

Model 7760 Petrol (VD) 7760 Petrol (MD)

7760 Diesel (VD) 7760 Diesel (MD)

Model No. 505-255CE 505-258CE

505-257CE 505-260CE Sound Pressure Level (ISO 11201 dB (A) 89.4 89.4 Sound Power Level (ISO 3744) dB (A) Lwa 109.0 Lwa 109.0 Total Weight lbs/kg 4,350 / 1973 3,900 / 1769

Vibrations at the Hand Controls (ISO 5349-1) m/s2 0.89 m/s Vibrations at the Seat (EN 1032) m/s2 0.31 m/s

Gradeability Transport 14.1% (8°) 14.1% (8°) Cleaning 10.5% (6°) 10.5% (6°)

0.89 m/s

0.31 m/s

0.89 m/s

0.31 m/s

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