User manual | American-Lincoln 7760 Operator`s manual

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User manual | American-Lincoln 7760 Operator`s manual | Manualzz

American-Lincoln

®

Operator's

Manual &

Parts List

Model 7760

Sweeper/Scrubber

Beginning with Serial No. 753391

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. If you or your operator (s) cannot read English, have this manual explained fully before attempting to operate this machine.

Si Ud. o sis operadores no pueden leer el Inglés, se hagen explicar este manual completamente antes de tratar el manejo o servicio de esta máquina.

All directions given in this book are as seen from the operator's position at the rear of the machine.

For new books, write to: American-Lincoln, Inc., 1100 Haskins Road, Bowling Green, Ohio 43402

ISO 9001

Part No. 2-86-00195

1996 American-Lincoln®

Printed in the

USA

TABLE OF CONTENTS

SPECIFICATIONS ...................................................................................................................... 1-6

MACHINE DIMENSIONS ............................................................................................................. 1-8

STANDARD HARDWARE & TORQUE VALUES ......................................................................... 1-9

HYDRAULIC TORQUE REQUIREMENTS .................................................................................. 1-10

DECIMAL - METRIC CONVERSION TABLE ............................................................................... 1-11

MACHINE OPERATION .............................................................................................................. 1-12

SAFETY INSTRUCTIONS .......................................................................................................... 1-13

OPERATION OF CONTROLS AND GAUGES ............................................................................ 1-14

IGNITION SWITCH .............................................................................................................. 1-14

LIGHT SWITCH .................................................................................................................. 1-14

GLOW PLUG SWITCH ....................................................................................................... 1-15

HORN PUSH BUTTON ....................................................................................................... 1-15

CHECK ENGINE (WARNING LIGHT) .................................................................................. 1-15

SIDE BROOM LIFT ............................................................................................................ 1-15

MAIN BROOM SWITCH ...................................................................................................... 1-16

SIDE BROOM SWITCH ...................................................................................................... 1-16

DUST CONTROL SWITCH ................................................................................................. 1-16

FILTER SHAKER SWITCH ................................................................................................. 1-16

WATER TEMPERATURE GAUGE ...................................................................................... 1-17

HOUR METER .................................................................................................................... 1-17

FUEL GAUGE ..................................................................................................................... 1-17

OIL PRESSURE GAUGE .................................................................................................... 1-17

VOLT METER ..................................................................................................................... 1-17

SCRUB BRUSHES SWITCH ............................................................................................... 1-17

BRUSH ROTATION SWITCH .............................................................................................. 1-18

BRUSH PRESSURE SWITCH ............................................................................................. 1-18

SQUEEGEE BLADE SWITCH ............................................................................................ 1-18

HIGH RECOVERY WARNING LIGHT ................................................................................. 1-18

LOW SOLUTION WARNING LIGHT .................................................................................... 1-18

HOPPER LIFT .................................................................................................................... 1-19

HOPPER DUMP DOOR ...................................................................................................... 1-19

MANUAL DUMP HOPPER ................................................................................................... 1-19

SOLUTION CONTROL ....................................................................................................... 1-19

SWEEPING BROOM LIFT CONTROL ............................................................................... 1-19

TURN SIGNAL (OPTION) ................................................................................................... 1-20

THROTTLE ........................................................................................................................ 1-20

CHOKE ............................................................................................................................... 1-20

PARKING BRAKE ............................................................................................................... 1-20

FOOT BRAKE .................................................................................................................... 1-20

ACCELERATOR & DIRECTIONAL CONTROL PEDAL ...................................................... 1-21

BACKUP ALARM SWITCH ................................................................................................. 1-21

SEAT ADJUSTMENT .......................................................................................................... 1-21

ESP SYSTEM OPERATING INSTRUCTIONS ............................................................................ 1-22

ESP RECYCLING CONTROL PANEL ................................................................................ 1-22

ESP RECYCLING SYSTEM ON/OFF SWITCH .................................................................. 1-22

SOLUTION HIGH WARNING LIGHT .................................................................................... 1-22

DETERGENT LOW WARNING LIGHT ............................................................................... 1-22

DETERGENT FLOW KNOB ............................................................................................... 1-22

HOPPER SAFETY LOCK ARM .......................................................................................... 1-22

THE SCRUBBING SYSTEM - HOW IT WORKS ................................................................. 1-23

NON-RECYCLING SCRUBBING SYSTEM - HOW IT WORKS ........................................... 1-23

RECOVERY OR ESP SYSTEM - HOW IT WORKS ........................................................... 1-24

THE SWEEPING & DUST CONTROL SYSTEM - HOW IT WORKS .................................. 1-26

OPERATING INSTRUCTIONS .................................................................................................... 1-28

AMERICAN-LINCOLN

7760

1-1

TABLE OF CONTENTS

FILLING THE SOLUTION TANK - NON-RECYCLING (STANDARD) .................................. 1-28

FILLING THE SOLUTION TANK - ESP ............................................................................... 1-28

PRE-START CHECKLIST ................................................................................................... 1-28

BEFORE STARTING THE ENGINE .................................................................................... 1-28

STARTING THE ENGINE .................................................................................................... 1-28

POST START CHECKLIST ................................................................................................ 1-29

TRANSPORTING THE MACHINE ....................................................................................... 1-29

BEGINNING THE CLEANING OPERATION ........................................................................ 1-29

ENDING THE CLEANING OPERATION .............................................................................. 1-29

POST OPERATION CHECKLIST ....................................................................................... 1-30

DRAINING THE SOLUTION TANK - ESP ............................................................................ 1-30

CLEANING THE SOLUTION TANK - ESP .......................................................................... 1-30

DRAINING THE RECOVERY TANK .................................................................................... 1-31

CLEANING THE RECOVERY TANK ................................................................................... 1-31

DOUBLE LID RECOVERY TANK ....................................................................................... 1-31

OIL COOLER ...................................................................................................................... 1-31

EMPTYING THE DEBRIS HOPPER - VARIABLE DUMP .................................................... 1-31

TOWING INSTRUCTIONS .................................................................................................. 1-31

SERVICE CHART ....................................................................................................................... 1-32

HELPFUL HINTS FOR CLEANING OPERATION ........................................................................ 1-34

GENERAL MACHINE MAINTENANCE ........................................................................................ 1-35

LUBRICATION .................................................................................................................... 1-35

OPENING THE ENGINE COVER ........................................................................................ 1-35

HYDRAULICS ..................................................................................................................... 1-36

FILLING THE HYDRAULIC RESERVOIR ............................................................................ 1-36

CLEANING THE HYDRAULIC SYSTEM ............................................................................. 1-36

REPLACING THE RETURN FILTER ELEMENT ................................................................. 1-36

HYDRAULIC SCHEMATIC - VARIABLE DUMP ................................................................... 1-37

HYDRAULIC SCHEMATIC - MANUAL DUMP ...................................................................... 1-38

ENGINE .............................................................................................................................. 1-39

MAIN BROOM REMOVAL ................................................................................................... 1-39

MAIN BROOM LEVEL ADJUSTMENT ................................................................................. 1-40

ADJUSTING THE MAIN BROOM WEAR PATTERN ........................................................... 1-40

SIDE BROOM LEVEL ADJUSTMENT ................................................................................. 1-40

SIDE BROOM REPLACEMENT ......................................................................................... 1-40

FLAPS ................................................................................................................................ 1-41

SCRUB BRUSH REPLACEMENT ....................................................................................... 1-42

COVERS AND LATCHES ................................................................................................... 1-42

SOLUTION WARNING LIGHT ............................................................................................. 1-42

RECOVERY WARNING LIGHT ........................................................................................... 1-42

SOLUTION CONTROL - STANDARD ................................................................................. 1-42

SOLUTION CONTROL - ESP ............................................................................................. 1-42

RECYCLING PUMP ESP SYSTEM ..................................................................................... 1-43

ESP SYSTEM STORAGE .................................................................................................. 1-43

RECOVERY TANK LID ACCESS ........................................................................................ 1-43

REAR SQUEEGEE ............................................................................................................. 1-43

SQUEEGEE CASTER WHEELS ........................................................................................ 1-43

CASTER WHEEL ADJUSTMENT ........................................................................................ 1-43

BRAKE ADJUSTMENT ....................................................................................................... 1-44

AIR INTAKE SYSTEM ......................................................................................................... 1-45

AIR FILTER ......................................................................................................................... 1-45

REPLACING THE AIR FILTER ............................................................................................ 1-45

REMOVING THE AIR FILTER ELEMENT ........................................................................... 1-46

CLEANING THE AIR FILTER ELEMENT ............................................................................. 1-46

1-2 AMERICAN-LINCOLN

7760

TABLE OF CONTENTS

INSPECTING THE AIR FILTER ELEMENT ......................................................................... 1-47

DUST CAP .......................................................................................................................... 1-47

COOLING SYSTEM ............................................................................................................ 1-47

COOLANT LEVEL .............................................................................................................. 1-47

RADIATOR ......................................................................................................................... 1-47

DRIVE BELTS ..................................................................................................................... 1-48

BATTERY ........................................................................................................................... 1-48

GAS TANK .......................................................................................................................... 1-49

LP GAS SYSTEM ............................................................................................................... 1-49

LP GAS VAPORIZER-REGULATOR QUICK CHECK ......................................................... 1-49

LP GAS FUEL TANK ........................................................................................................... 1-49

NEUTRAL ADJUSTMENT ................................................................................................... 1-49

PARTS LIST LEGEND ............................................................................................................... 1-50

GENERAL TROUBLESHOOTING .............................................................................................. 1-51

SCHEMATIC DIAGRAM OPTIONS ............................................................................................. 1-53

ORDERING PARTS .................................................................................................................... 1-54

TABLE OF CONTENTS - CHAPTER TWO ................................................................................ 2-1

MAIN BROOM ..................................................................................................................... 2-2

MAIN BROOM LIFT LINKAGE ............................................................................................ 2-6

SIDE BROOM (VARIABLE DUMP) ..................................................................................... 2-8

BROOM AND BRUSH CHAMBER DOOR ........................................................................... 2-10

HOPPER SYSTEM (MANUAL DUMP) ................................................................................ 2-12

HOPPER AND FLAPS (VARIABLE DUMP) ......................................................................... 2-14

HOPPER FILTER AND IMPELLER ..................................................................................... 2-16

HOPPER CONTROL VALVE & HOPPER DUMP LINKAGE (VARIABLE DUMP) ................ 2-18

SCRUB DECK AND BRUSHES ........................................................................................... 2-20

SCRUB DECK SOLUTION FEED (60”) .............................................................................. 2-24

REAR AND SIDE SQUEEGEES ......................................................................................... 2-26

SQUEEGEE LIFT ............................................................................................................... 2-30

SWING SQUEEGEE SUPPORT ......................................................................................... 2-32

SOLUTION TANK ............................................................................................................... 2-34

SOLUTION FEED LINKAGE ............................................................................................... 2-36

RECOVERY TANK ............................................................................................................. 2-40

RECOVERY TANK LID ....................................................................................................... 2-42

VACUUM MOTOR & FLOAT .............................................................................................. 2-44

FRONT WHEEL AND BRAKE ............................................................................................. 2-46

REAR WHEEL .................................................................................................................... 2-48

BRAKE LINKAGE ............................................................................................................... 2-50

FORWARD/REVERSE CONTROL - FORD ....................................................................... 2-52

FORWARD/REVERSE CONTROL - PERKINS .................................................................. 2-54

MAIN FRAME ...................................................................................................................... 2-56

DRIVER COMPARTMENT .................................................................................................. 2-58

HYDRAULIC HOSE SYSTEM (VARIABLE DUMP) .............................................................. 2-60

HYDRAULIC HOSE SYSTEM (MANUAL DUMP) ................................................................ 2-62

SUCTION & RETURN HOSES (VARIABLE DUMP) ............................................................ 2-64

SUCTION & RETURN HOSES (MANUAL DUMP) ............................................................... 2-66

MAIN BROOM AND FITTINGS ............................................................................................ 2-68

SIDE BROOM AND FITTINGS ............................................................................................ 2-69

SCRUB MOTORS & FITTINGS .......................................................................................... 2-70

SQUEEGEE AND SCRUB DECK CYLINDERS & FITTINGS .............................................. 2-71

POWER STEERING, HOPPER DUMP & HOPPER LIFT CYL’S. & FITTINGS .................... 2-72

REAR WHEEL MOTOR & FITTINGS ................................................................................. 2-74

HYDRAULIC RESERVOIR, FILTER & FITTINGS ............................................................... 2-76

DRIVE PUMP & FITTINGS ................................................................................................. 2-78

AMERICAN-LINCOLN

7760

1-3

TABLE OF CONTENTS

VACUUM MOTOR & FITTINGS .......................................................................................... 2-79

DUST CONTROL IMPELLER AND FITTINGS .................................................................... 2-80

POWER STEERING UNIT AND FITTINGS ......................................................................... 2-81

MAIN CONTROL VALVE AND FITTINGS ............................................................................ 2-82

CYLINDER CONTROL VALVE AND FITTINGS .................................................................. 2-83

RETURN MANIFOLD AND FITTINGS ................................................................................. 2-84

OIL COOLER & FITTINGS ................................................................................................. 2-85

AUXILIARY PUMP AND FITTINGS FORD .......................................................................... 2-86

AUXILIARY PUMP AND FITTINGS PERKINS ...................................................................... 2-87

BATTERY ........................................................................................................................... 2-88

ENGINE COVER ................................................................................................................. 2-90

FUEL TANK ......................................................................................................................... 2-92

FORD 425 ENGINE ............................................................................................................ 2-94

PERKINS DIESEL ENGINE ................................................................................................. 2-96

THROTTLE CHOKE AND FUEL PUMP .............................................................................. 2-98

DIESEL FUEL AND WATER EXTRACTOR ......................................................................... 2-100

AIR INTAKE - FORD ........................................................................................................... 2-102

AIR INTAKE - PERKINS ...................................................................................................... 2-104

EXHAUST SYSTEM, GAS AND LP - FORD ....................................................................... 2-106

EXHAUST SYSTEM, DIESEL - PERKINS ........................................................................... 2-107

RADIATOR AND SHROUD ................................................................................................. 2-108

STEERING AND INSTRUMENT PANEL .............................................................................. 2-110

INSTRUMENT PANEL ......................................................................................................... 2-112

INSTRUMENT PANEL (MANUAL DUMP) ............................................................................ 2-114

WIRING - FORD 425 (VARIABLE DUMP) .......................................................................... 2-116

WIRING - PERKINS (VARIABLE DUMP) ............................................................................. 2-118

WIRING - FORD 425 (MANUAL DUMP) ............................................................................. 2-120

WIRING - PERKINS (MANUAL DUMP) ................................................................................ 2-122

DECALS ............................................................................................................................. 2-124

TABLE OF CONTENTS - CHAPTER THREE ......................................................................................... 3-1

NOTES ............................................................................................................................... 3-2

ELECTRICAL SCHEMATIC, GAS (VARIABLE DUMP) ....................................................... 3-3

ELECTRICAL SCHEMATIC, DIESEL (VARIABLE DUMP) ................................................... 3-4

ELECTRICAL SCHEMATIC, GAS (MANUAL DUMP) .......................................................... 3-5

ELECTRICAL SCHEMATIC, DIESEL (MANUAL DUMP) ...................................................... 3-6

CONNECTION DIAGRAM, GAS (VARIABLE DUMP) .......................................................... 3-7

CONNECTION DIAGRAM, DIESEL, VARIABLE DUMP) ..................................................... 3-8

CONNECTION DIAGRAM, GAS (MANUAL DUMP) ............................................................. 3-9

CONNECTION DIAGRAM, DIESEL (MANUAL DUMP) ........................................................ 3-10

OVERHEAD GUARD, OPTION ........................................................................................... 3-11

BRUSH OPTIONS ............................................................................................................... 3-12

SIDE BROOM OPTION (MANUAL DUMP) .......................................................................... 3-14

BROOM OPTIONS ............................................................................................................. 3-16

BACK-UP ALARM OPTION ................................................................................................ 3-17

LIGHTS, OPTIONS ............................................................................................................. 3-18

TURN SIGNAL, OPTIONS .................................................................................................. 3-20

WARNING LIGHTS (STANDARD) ....................................................................................... 3-22

WARNING LIGHTS witH OVERHEAD GUARD ................................................................... 3-24

FIRE EXTIGUISHER OPTION ............................................................................................. 3-26

FLAME ARRESTING GAS CAP OPTION ........................................................................... 3-27

1-4 AMERICAN-LINCOLN

7760

SAFETY AIR CLEANER ..................................................................................................... 3-28

DEBRIS BASKET OPTION ................................................................................................. 3-29

DETERGENT & SOLUTION TANK, ESP OPTION .............................................................. 3-30

RECOVERY TANK & DETERGENT PUMP, ESP OPTION ................................................. 3-32

LP TANK SYSTEM OPTION ............................................................................................... 3-34

LP FORD ENGINE .............................................................................................................. 3-36

FORD ENGINE SHUTDOWN OPTION ............................................................................... 3-38

PERKINS ENGINE SHUTDOWN OPTION .......................................................................... 3-40

SUSPENSION SEAT, OPTION ............................................................................................ 3-42

TIRE, OPTIONS .................................................................................................................. 3-43

VACUUM WAND OPTION ................................................................................................... 3-44

WET SWEEP BYPASS ....................................................................................................... 3-45

INSTRUMENT PANEL, ESP OPTION ................................................................................. 3-46

WIRING, ESP OPTION ........................................................................................................ 3-48

SPARE PARTS KIT, GAS/LP VARIABLE ............................................................................ 3-50

SPARE PARTS KIT, DIESEL VARIABLE ............................................................................. 3-51

SPARE PARTS KIT, GAS/LP MANUAL ............................................................................... 3-52

SPARE PARTS KIT, DIESEL MANUAL ................................................................................ 3-53

INDEX .................................................................................................................................................... 3-54

WARRANTY ............................................................................................................................................ 3-59

AMERICAN-LINCOLN

7760

1-5

SPECIFICATIONS

DIMENSIONS

Length

Width

Height

Wheel Base

Height with Guard

107.0 Inches - 271.8 Cm.

59.0 Inches - 149.9 Cm.

61.5 Inches - 156.2 Cm.

56.4 Inches - 143.2 Cm.

85.5 Inches - 217.2 Cm.

DRIVES

Propelling

Sweeping

Scrubbing

Vacuum - Water Pick Up

Variable Displacement Pump - Hydraulic Drive Motor

(1) Hydraulic Motor

(3) Hydraulic Motors

(1) Hydraulic Motor

HYDRAULIC CONTROL

Single Foot Pedal Controls Forward, Neutral, Reverse & Dynamic Braking.

All Electro-Hydraulic Controls To Both Sweeping And Scrubbing Functions.

MECHANICAL SYSTEM

Steering

Brakes

Brooms

SWEEPING SYSTEM

Type

Hopper

Main Broom

Power Steering with Rack and Pinion Gear.

Parking/Foot Operated and Locked Disc Brakes

Lift and Height Adjustment

Direct Throw

1200 Lb. - 545 Kg. (Variable Dump)

400 Lb. - 181 Kg. (Manual Dump)

50 Inches Long X 14-Inch Diameter - 127 Cm. X 35.6 Cm.

3.25 Inch Bristle Length - 8.3 Cm.

Features Broom Lift and Adj. Broom Height For Wear

Compensation, Standard Poly-Fiber Broom, Quick Change

System.

BRUSHES & SQUEEGEE

Brush

Squeegees

(3) 17.88 Inch (45.4 Cm.) Diameter Poly-Fiber Discs

(1) 62 Inch (157.48 Cm.) Wide Contoured Rear Swing Squeegee

(2) 29 Inch (73.7 Cm.) Floating Side Squeegees, One On Either

Side Of the Scrubbing Compartment

TANK CAPACITY (Standard)

TANK CAPACITY (ESP System)

1-6

FUEL SYSTEM

Engine Cooling System

Gas/LP System Total

Diesel System Total

Gas, Diesel Fuel Tank

LPG Tank

Engine Oil System

Gas and LPG

Diesel

Hydraulic System

Total System

100 Gallon (378.5 Liters) Solution Tank

100 Gallon (375.5 Liters) Recovery Tank

Interconnected Tanks Provide A Total Camel System Capacity

Of 190 Gallons (719 Liters) Along With 5 Gallons (18.9 Liters) Of

Detergent.

Radiator and Hoses (Approximately) 3 Quarts (2.8 Liters)

6.75 Quarts - 6.4 Liters

6.6 Quarts - 6.2 Liters

9.7 Gallons - 36.71 Liters

33 Pounds

4 Quarts - 3.8 Liters

5 Quarts - 4.7 Liters

11 Gallons - 41.6 Liters

AMERICAN-LINCOLN

7760

SPECIFICATIONS

SWEEPING WIDTH

SPEEDS

Maximum Travel

Recommended Maximum

Sweeping And

Scrubbing Speed

50 Inch (125.0 Cm.) Sweeping

60 Inch (152.4 Cm.) Sweeping With Side Broom

7 Mph - 11.3 Km./Hr.

4.0 Mph - 6.4 Km./Hr.

TURNING RADIUS

Left

Right

82 Inches - 208.3 Cm.

82 Inches - 208.3 Cm.

Minimum Aisle Width for 180° Turn

Scrubbing Width

120 Inches - 305 Cm.

54" Inches (137 Cm.) Provided By (3) 17.88 Inch (45.4 Cm.)

Diameter Disc Brushes

WEIGHTS

7760

Net

Shipping W/ Crate

ENGINE DATA

Ford LRG - 42 5

Bore And Stroke

Oil Capacity

Displacement

Fuel

Perkins 104.19

Bore And Stroke

Oil Capacity

Displacement

Variable Dump/Manual Dump

4150 Lb. - 1882 Kg. / 3700 Lb. - 1678 Kg.

4600 Lb. - 2087 Kg./ 4150 Lb. - 1882 Kg.

3.78 X 3.126 In. - 9.60 X 7.94 Cm.

4 Quarts - 3.8 Liters

4 Cylinders - 2.3 Liters (140 Cid)

“Regular” Unleaded Gasoline

8.307" X 3.543 (8.4 Cm X 9.0 Cm)

6.5 Quarts (6.2 Liters)

4 Cylinders (2 Liters) (122 Cid)

AMERICAN-LINCOLN

7760

1-7

MACHINE DIMENSIONS

85.5"

217.2

cm.

61.5"

156.2

cm.

54.5"

138.4

cm.

56.4"

143.2

cm.

107"

271.8

cm.

27.0"

68.6

cm.

92.0"

233.7

cm.

60.0"

157.5

cm.

1-8

27.4"

69.5

cm.

59.0"

149.9

cm.

27.4"

69.5

cm.

AMERICAN-LINCOLN

7760

STANDARD HARDWARE & TORQUE VALUES

SAE - Grade 5

SAE - Grade 8

Screw

Size

7/16

1/2

9/16

5/8

3/4

7/8

1

*6

*8

*10

*1/4

5/16

3/8

68

98

135

239

39

86

15

28

44

387

579

C

14

27

Grade

5

Plated

F

15

28

43

108

17

31

49

76

110

153

267

-

-

-

-

C

-

130

22

40

63

95

138

191

338

545

818

Grade

8

Plated

151

24

44

70

F

-

-

-

108

155

216

378

-

-

410H

Stainless

114

19

34

55

85

-

-

-

-

-

C

18

33

47

-

-

-

-

22

39

62

95

-

F

20

35

54

132

C = Coarse Thread

F = Fine Thread

* = Torque values for #6 through 1/4 are lb./in. All others are lb./ft.

NOTE

Brass

-

-

-

-

-

-

5

9

13

32

6

10

16

Decrease the torque by 20% when using thread lubricant

The torque tolerance is ± on torque values.

-

-

-

-

-

-

C

20

37

49

120

-

-

-

Type

F & T

& BT

-

-

-

-

156

-

-

-

-

-

F

23

41

64

C2000/9905

Type

B, AB

-

-

-

-

-

-

21

34

49

120

-

-

-

AMERICAN-LINCOLN

7760

1-9

HYDRAULIC TORQUE REQUIREMENTS

HYDRAULIC TORQUE REQUIREMENTS

Refer to the following chart for torque values on all hydraulic hoses and fittings.

Nominal

SAE

Dash

Size

-3

-4

-5

-6

-8

-10

-12

-14

-16

-20

-24

O-Ring Face Seal End

Thread Swivel

Size

Inch

Nut

Torque

LB-FT

*

9/16-18

*

11/16-16

13/16-16

1-14

1 3/16-12

1 3/16-12

1 7-16-12

1 11/16-12

2-12

*

10-12

*

18-20

32-35

46-50

65-70

65-70

92-100

125-140

150-165

SAE O-Ring Boss End

Thread Str. Fitting

Size

Inch or Locknut

Torque

LB-FT

3/8-24

7-16-20

1/2-20

9/16-18

3/4-16

7/8-14

1 1/16-12

1 3/16-12

1 5/16-12

1 5/8-12

1 7/8-12

8-10

14-16

18-20

24-25

50-60

72-80

125-135

160-180

200-220

210-280

270-360

* O-Ring face seal type end not defined for this tube size.

NOTE

Parts must be lightly oiled with hydraulic fluid.

C-2002

1-10 AMERICAN-LINCOLN

7760

1

2

C2001/9905

3

8

1

8

1

4

FRACTION

1

32

1

64

3

64

1

16

5

64

3

32

3

16

5

32

7

32

DECIMAL

0.015625

0.03125

0.046875

0.0625

0.078125

0.09375

7

64

0.109375

0.125

9

64

0.140625

0.15625

11

64

0.171875

0.1875

13

64

0.203125

0.21875

15

64

0.234375

0.25

9

32

17

64

0.265625

0.28125

5

16

19

64

0.296875

0.3125

11

32

21

64

0.328125

0.34375

23

64

0.359375

0.375

13

32

25

64

0.390625

0.40625

27

64

7

16

0.421875

0.4375

29

64

15

32

0.453125

0.46875

31

64

0.484375

.05

MILLIMETER

0.3969

0.7938

1.1906

1.5875

1.9844

2.3813

2.7781

3.1750

3.5719

3.9688

4.3656

4.7625

5.1594

5.5563

5.9531

6.3500

6.7469

7.1438

7.5406

7.9375

8.3344

8.7313

9.1281

9.5250

9.9219

10.3188

10.7156

11.1125

11.5094

11.9063

12.3031

12.7000

DECIMAL-METRIC CONVERSION TABLE

FRACTION

17

32

33

64

DECIMAL

0.515625

0.53125

MILLIMETER

13.0969

13.4938

35

64

0.546875

13.8906

9

16

0.5625

14.2875

37

64

0.578125

14.6844

19

32

0.59375

15.0813

39

64

0.609375

15.4781

5

8

0.625

15.8750

41

64

0.640625

16.2719

21

32

0.65625

16.6688

43

64

0.671875

17.0656

11

16

0.6875

17.4625

45

64

0.703125

17.8594

23

32

0.71875

18.2563

47

64

0.734375

18.6531

3

4

0.75

19.0500

49

64

0.765625

19.4469

25

32

0.78125

19.8438

51

64

0.796875

20.2406

13

16

0.8125

20.6375

53

64

0.828125

21.0344

27

32

0.84375

21.4313

55

64

0.859375

21.8281

7

8

0.875

22.2250

57

64

0.890625

22.6219

29

32

0.90625

23.0188

59

64

0.921875

23.4156

15

16

0.9375

23.8125

61

64

0.953125

24.2094

31

32

0.96875

24.6063

63

64

0.984375

25.0031

1

1.00

25.4000

AMERICAN-LINCOLN

7760

1-11

MACHINE OPERATION

P5100/9907 FIGURE 1

YOUR 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 gasoline. (Diesel fuel if equipped with diesel engine.)

WARNING

Never fill tank while engine is running. Always be sure gasoline container and sweeper are electrically connected before pouring gasoline. This can easily be done by providing an insulated wire

(permanently attached to container) with battery clip on the other end.

3.

Check engine crankcase oil level. Although properly lubricated at factory, check before starting engine. No special break in oil is used and 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 add 1/2 part water to 1/2 part anti freeze.

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.

1-12 AMERICAN-LINCOLN

7760

SAFETY INSTRUCTIONS

WARNING

FOR SAFETY, OBSERVE THE FOLLOWING WARNINGS. FAILURE TO COMPLY MAY CREATE A SERIOUS

RISK OF INJURY TO YOU AND OTHERS. THIS MACHINE SHOULD NOT BE USED IN HAZARDOUS LOCA-

TIONS INCLUDING AREAS OF VOLATILE DUST OR VAPOR CONCENTRATIONS.

Operators must be trained and qualified to operate this machine. They must also understand the operator’s manual before starting.

Use caution when mounting or dismounting the machine particularly on wet slippery surfaces.

Operate only from the designated operator’s position. Stay inside the body of the machine. Keep hands and feet on the designated controls. Always operate in well-lit areas.

Do not dump the hopper over an open pit or dock. Do not dump the hopper when positioned on a grade (ramp). The machine must be level (horizontal).

Exhibit extreme caution when negotiating, turning and traveling across grades or ramps.

Start, stop, change direction, travel and brake smoothly. Slow down when turning. Avoid uneven surfaces and loose materials.

Watch out for obstructions, especially overhead.

Do not carry passengers on the machine.

Set parking brake when leaving the machine. Chock (block) the wheels if the machine is to be parked on a grade (ramp), or when working on it.

Never leave the operator’s seat with the engine running.

Report damage or faulty operation immediately. Do not operate the machine until repairs have been completed.

AMERICAN-LINCOLN

7760

1-13

OPERATIONS OF CONTROLS AND GAUGES

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

CHOKE

THROTTLE

PARKING BRAKE

WATER TEMPERATURE GAUGE

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

CHECK ENGINE

(WARNING LIGHT OPTION)

FOOT BRAKE

BACKUP ALARM SWITCH

ACCELERATOR &

DIRECTIONAL

CONTROL PEDAL

SEAT ADJUSTMENT

P-5101 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 left “ACCESSORY” position will allow the following additional items to be activated:

(A.) Turn Signals

(B.) Instrument Gauges

3.

The key turned to the right “IGN/ON” position will allow all the items listed above to be activated.

This position will not start the engine.

4.

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.

1-14 AMERICAN-LINCOLN

7760

OPERATIONS OF CONTROLS AND GAUGES

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.

CHECK ENGINE (WARNING LIGHT OPTION)

This engine has a low oil pressure and low water shutdown option. If the engine oil pressure or the water level drops too low, the engine will shut down. Add engine oil until the oil is brought up to the correct level, or water to the radiator to the correct level.

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

CHECK

ENGINE

ACC

OFF

IGN/ON

START

LIGHTS

LIGHTS

CHECK ENGINE

WARNING LIGHT

(KYSOR SHUTDOWN

SYSTEM OPTION)

GLOW PLUG

HORN

GLOW PLUG

SWITCH

(DIESEL ONLY)

HORN

SIDE

BROOM

LIFT

P-4853

AMERICAN-LINCOLN

7760

FIGURE 3

1-15

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 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.

MAIN

BROOM

DUST

CONTROL

SWEEPING

MAIN

BROOM

ON

SIDE

BROOM

OFF

DUST

CONTROL

ON

FILTER

SHAKER

OFF

SIDE

BROOM

FILTER

SHAKER

P-4862 FIGURE 4

NOTE - (Variable 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.

1-16 AMERICAN-LINCOLN

7760

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 farenheight.

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 key switch is in the “ignition” position. The meter indicates actual “run” time of the machine. The meter is used to indicate when maintenance should be done to the machine.

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 charging or discharging of the battery.

WATER TEMPERATURE

°F

100

170

195

220

77 91 104

°C

280

138

WATER

TEMP

FUEL GAUGE

0

1/4

1/2

FUEL

VOLTMETER

10

12

14

16

+

BATTERY

0

HOURS

0 0 0 1

1/10

0

PSI

20

40

60

80 kPa

278

553

OIL

PRESS

P-4865

HOURMETER

FIGURE 5

OIL PRESSURE

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.

AMERICAN-LINCOLN

7760

1-17

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 “SCRUB-

BING” 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

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

P-4854

1-18

HIGH

RECOVERY

LOW

SOLUTION

SCRUBBING

SCRUB

BRUSHES

SQUEEGEE

BLADE

LOWER

RAISE

BRUSH

PRESSURE

BRUSH

ROTATION

NORMAL

SQUEEGEE

BLADE LIFT

SCRUB BRUSH

LIFT

HEAVY

REVERSED

BRUSH

ROTATION

BRUSH

PRESSURE

FIGURE 6

AMERICAN-LINCOLN

7760

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 drivers 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 DUMP DOOR - (Variable 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 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 the elongated slot. The first notch, “SWEEP”, is for normal sweeping (2 to 3 inch [5 to 8 cm.] broom pattern). The second notch, “FLOAT”, is for heavy sweeping (4 to 5 inch [10 to 13 cm.] broom pattern).

HOPPER

LIFT

LOWER

To 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.

DUMP DOOR

OPEN

RAISE

HOPPER

OPEN

CLOSE

DUMP

DOOR

HIGH

SOLUTION

CONTROL

NOTE - (Variable Dump Machines Only)

FLOAT

A switch triggered by the hopper and dump door’s 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.

MAIN BROOM

LIFT

UP

EEP

LOW

OFF

TURN SIGNAL - 4 Way (Option)

The turn signal option is located on the steering column and works as automotive turn signals work, forward on the lever for

SWEEPING

SOLUTION

CONTROL

P-4851 FIGURE 7 right and back on the lever for left. The 4-way flasher will activate when the turn signal lever is pulled out.

AMERICAN-LINCOLN

7760

1-19

OPERATIONS OF CONTROLS AND GAUGES

THROTTLE

The throttle control is located to the left of the driver compartment. The engine must be operating at full governed speed of 2150 “no load” RPM (broom control off and machine sitting still), to maintain optimum machine travel speed, hopper loading and dust control. Before turning off the key and stopping the engine, move lever to idle speed.

CHOKE

LP powered engines do not have a choke. The choke is located to the right of the throttle. The choke governs the mixture of air and fuel during the combustion cycle of the engine operation. The choke should be pulled out during the start of the engine and then gradually pushed back in after the engine is warm.

PARKING BRAKE

The parking brake lever is located in the left side of the driver compartment floor. 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 floor of the driver compartment. The foot brake on front wheels is a mechanical system actuated by the brake pedal.

LOCKED

POSITION

1-20

P-4888

PARKING

BRAKE

FIGURE 8

P-4887 FIGURE 9

AMERICAN-LINCOLN

7760

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 floor of the driver compartment, to the right of the brake pedal. The accelerator and directional control pedal controls the 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

A switch that is located under the lower section of the Accelerator and directional control pedal operates the back up 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.

AMERICAN-LINCOLN

7760

1-21

ESP SYSTEM OPERATING INSTRUCTIONS

ON

SOLUTION HIGH

WARNING LIGHT

DETERGENT

FLOW KNOB

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 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 flow 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.

HOPPER SAFETY LOCK ARM

(Variable Dump Only)

HOPPER

LIFT LEVER

HOPPER

DOOR LEVER

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.

1-22

P-5104 FIGURE 12

AMERICAN-LINCOLN

7760

THE SCRUBBING SYSTEM - HOW IT WORKS

ESP SYSTEM OPERATING INSTRUCTIONS

SOLUTION

TANK

BAFFLE

P-4795 FIGURE 13

There are two scrubbing systems available for the 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 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.

ORIFICE

CHECK

VALVE

DETERGENT

TANK

SOLUTION

TANK

SOLUTION

PUMP

DETERGENT

PUMP

P4759a

RECOVERY

TANK

FILTER

FLOW VALVE

FILTER

SEPARATOR

SCRUB

BRUSH

AUTOFIL VALVE

FILL COUPLING

SQUEEGEE

FLOOR CONTACT

P-4759a

AMERICAN-LINCOLN

7760

FIGURE 14 P-5103 FIGURE 15

1-23

ESP SYSTEM OPERATING INSTRUCTIONS

THE RECOVERY OR ESP SYSTEM - HOW IT WORKS

During the scrubbing process (shown in Figure 16), filtered 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 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 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 filtered 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.

BAFFLE

P-4795-1

NON-RECYCLING

FIGURE 16

RECYCLING

SOLUTION

TANK

1-24 AMERICAN-LINCOLN

7760

ESP SYSTEM OPERATING INSTRUCTIONS

VACUUM

P-5103

AMERICAN-LINCOLN

7760

FIGURE 17

1-25

ESP SYSTEM OPERATING INSTRUCTIONS

THE VARIABLE DUMP SWEEPING AND DUST CONTROL SYSTEMS - HOW THEY WORK

Variable Dump 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

1-26 AMERICAN-LINCOLN

7760

DUST CONTROL OPERATING INSTRUCTIONS

P-5105 FIGURE 19

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 dust particles. This allows the dust filters to remain cleaner and need less shaking to remove dust. When the dust filters become clogged 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

AMERICAN-LINCOLN

7760

1-27

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 on hand.

4.

Close the solution tank cover (right hand side).

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 (right hand side).

NOTE:

Fill recovery tank ½ way 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 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

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.

Pull choke if engine is cold (Gas engine only). If machine is stored in extremely cold temperatures under,

32° f. (0° C.) pull choke and hold throttle open approximately halfway when starting engine.

3.

Turn key to “On” position and hold it until the engine starts. Push choke in when engine starts.

4.

If engine fails to start after following the above procedures, refer to Engine Manual Section.

1-28 AMERICAN-LINCOLN

7760

OPERATING INSTRUCTIONS

WARNING

It is not advised to store 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 not over 1/2 throttle with machine standing still for 5-10 minutes to warm engine and hydraulic oil.

POST START CHECKLIST (Engine Running)

1.

Check broom pattern.

2.

Check squeegee deflection.

TO TRANSPORT MACHINE (No scrubbing or sweeping)

1.

Be sure the sweeping broom, brushes and squeegee are in the “Up” position with all other controls in the

“Off” position.

2.

Release parking brake.

3.

Push throttle control up and to left.

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 fill 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 floor 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 floor condition. This knowledge will come with operator experience.

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 tank, solution tank, and 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.

AMERICAN-LINCOLN

7760

1-29

OPERATING INSTRUCTIONS

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 flaps for wear, damage and adjustment. 4. Drain and clean solution tank (ESP system)

5.

Clean solution filter screen (ESP system) 6. Drain and clean recovery tank.

7.

Clean recovery tank screens and floats. 8. Check manifold and vacuum hoses for debris or obstructions, backflush 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. To drain the tank, lower the hose, remove the plug and drain. When the draining operation is completed, clean the solution tank as outlined below.

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

Cleaning the solution tank is simplified by the large access cover. Flush all deposits from the tank, also flush 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, flush and clean the recovery tank as outlined below.

P-4766 FIGURE 20

CLEAN RECOVERY TANK

The large access cover on the recovery tank simplifies the cleaning process. Once the recovery tank lid is opened, tip out the tank. With the recovery tank in the tipped out position (figure 20), flush all sand, sludge, debris, etc. out of the tank with a water hose, then replace the tank and flush the manifold, ball float screen and level switch to remove any deposits.

WARNING

Do not attempt to flush large amounts of tank debris through the drain hose, this will cause clogging and hamper future drainage. Always flush the recovery tank with clean water at the end of each cleaning cycle. Never let debris accumulate, settle and harden in the tank or on associated hardware.

1-30 AMERICAN-LINCOLN

7760

HOPPER

LIFT LEVER

HOPPER

DOOR LEVER

OPERATING INSTRUCTIONS

TOW CONTROL

SHAFT

P-5104 FIGURE 21

P-4183 FIGURE 22

DOUBLE LID RECOVERY TANK

The Recovery Lid is a double lid. Removing the two hex head bolts, located on the side of the lid can open the lid.

The oil cooler and recovery tank vacuum pump are located in the lid.

OIL COOLER

The oil cooler is located in the recovery tank double lid.

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 filter 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 flats on the shaft are parallel to the front axle.

3.

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

AMERICAN-LINCOLN

7760

1-31

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 filters for damage and clean.

2.

Check engine oil level.

3.

Check hydraulic fluid level.

4.

Check radiator core for blockage.

5.

Check all flaps for wear or damage.

6.

Check brooms for wear or damage, adjust as required.

7.

Check panel filters (clean side) for leakage.

8.

Check brake pedal and parking brake.

9.

Check for LPG odor at connections.

10. Check water separator.

11. Check engine air cleaner.

12. Check hydraulic oil filter.

13. Check coolant level.

LP

D

50 HOUR (WEEKLY) MAINTENANCE CHECKLIST

14. Solution tank (recycling or ESP system).

15. Solution filter screen (recycling or ESP system).

16. Recovery tank.

17. Recovery tank screens and filters.

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 brush (end for end).

24. Clean or replace panel filters.

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

100 HOUR MAINTENANCE CHECKLIST

25. Change crankcase oil.

26. Change engine oil filter.

27. Lubricate drive wheel, l swivel wheel bearings, and steering rack guide

(engine side above rear wheel).

28. Lubricate front wheel bearings.

29. Lubricate all moving joints.

30. Check brake pads for wear and adjust accordingly.

31. Lubricate all 6 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 filter screen.

34. Replace engine air filter element.

35. Flush radiator coolant system.

36. Remove spark plug - clean or replace.

LP, G

37. Check distributor and points - service or replace.

38. Clean and lubricate governor & choke linkage.

39. Replace fuel filter.

40. Replace hydraulic filter element.

LP, G

LP, G

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 fluid.

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

LP = LPG

1-32

G = Gas D = Diesel

AMERICAN-LINCOLN

7760

SERVICE CHART

20

2, 25

39 36, 37 11, 34 17

16

4

13, 35

38

26

21

9

31

41, 42, 43

12, 40

31

27

32

8 15,

3

33

29

14

19

18

29 5 31 6, 23

1, 7, 24

31

28, 30

AMERICAN-LINCOLN

7760

1-33

HELPFUL HINTS FOR CLEANING OPERATION

SIDE AISLES

MAIN AISLE

P4134/0001

P-4134

SIDE AISLES

FIGURE 23

WARNING

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 floor, or section at one time.

2.

Pick up oversize debris before sweeping.

3.

Allow a few inches of 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 the sweeping broom end for end to prevent the bristles from “setting” in one direction.

NOTE

Replace sweeping broom when bristles are worn to 3-inch (8-cm.) length. To order replacement brooms, see page 179. Replace disc brushes when bristles are reduced to 1/2 inch (1.3 cm.) in length.

To order replacement brushes, see page 180. Replace squeegee rubbers when all usable edges have become rounded with wear, impairing the wiping action. To order replacement squeegee rubbers, see page 168.

1-34 AMERICAN-LINCOLN

7760

LUBRICATION

6

3

GENERAL MACHINE MAINTENANCE

4

4

1

5

3

4

2

FIGURE 24 P-5114

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 DANHOUSER Bushings with NAPA #765-1363 or equivalent anti-seize lubricant. The bush ings 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 & choke linkage.

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

WARNING

Only grease these units while they are in the raised position. Application of grease while the squeegee and the scrub deck are lowered will fill an empty cavity. Avoid too much grease.

All other moving joints should receive a few drops of #10 oil every 100 hours to keep them from rusting and/or binding.

ENGINE COVER

LATCH

HOW TO OPEN THE ENGINE COVER

The engine cover encloses the entire engine, radiator and hydraulic reservoir assembly. The cover can be swung open to completely clear the assembly and allow easy access to the engine.

1. Release the engine cover latch.

2. Lift the cover slightly to clear the engine

cover stop.

3. Swing the cover open.

P-5107

AMERICAN-LINCOLN

7760

FIGURE 25

1-35

GENERAL MACHINE MAINTENANCE

HYDRAULICS

FILL

HYDRAULIC

RESERVOIR

HOW TO FILL THE HYDRAULIC RESERVOIR

1. Access to the hydraulic reservoir is located

beneath the driver’s seat.

2. Open the hydraulic reservoir breather filter cap.

3. Remove any debris that is in the breather filter

cap screen.

4. Fill the reservoir until the fluid is at the “FULL” line

on the hydraulic fluid sight gauge. The sight

gauge is located on the front of the hydraulic

reservoir.

5. Close the hydraulic reservoir breather filler cap.

6. Put the driver’s seat back into position.

P-5089

P5089

FIGURE 26

HOW TO CLEAN THE HYDRAULIC SYSTEM

1.

Put a drop cloth on the floor.

2.

Drive the machine onto the drop cloth.

3.

Set the parking brake.

4.

Tip the seat to the side.

5.

Put a container under the reservoir drain to catch the reservoir fluid.

6.

Remove the drain plug. The reservoir fluid will drain. Do not use the drained reservoir fluid to refill the hydraulic reservoir. Dispose of the used fluid.

7.

Flush the interior of the hydraulic reservoir with clean fluid.

8.

Put the reservoir plug, removed in step six back in the hydraulic tank drain and tighten. A pipe thread sealer is required on the plug.

9.

Open the breather filter cap.

10. Fill the reservoir with new FORD type “F” automotive transmission fluid. The capacity of the tank is 10 gallons. Fill to the “FULL” line on hydraulic fluid sight gauge.

11. Close the breather filter cap.

12. Tip the seat back to its original position.

COVER

SPRING

O-RING

FILTER

ELEMENT

FILTER

BODY

1-36

P-5091

P-5091/9907

FIGURE 27

HOW TO REPLACE THE RETURN FILTER

ELEMENT

1. Replace the return filter after 250 hours of

machine run time.

2. Unscrew the fasteners from the filter assembly

cover and retain.

3. Remove the cover and the compression spring

and retain.

4. Discard old filter element.

5. Position new filter element inside the filter body.

6. Put the compression spring in position. Wipe the

cover magnet free of any metal filings or debris.

7. Place O-ring (Moisten with clean hydraulic fluid)

and cover into position.

8. Reattach fasteners to filter cover.

9. Wipe clean any hydraulic reservoir fluid spills.

The fluid can damage painted surfaces of the

machine.

AMERICAN-LINCOLN

7760

HYDRAULIC SCHEMATIC - VARIABLE DUMP

P

2200

PSI

E STE ER N

0.

1

5 9

CIR.

VACUUM

MOTOR

A 1.93

CIR.

B

SIDE BROOM

SIDE

B ROOM

VAL VE

CYLINDER

N RO L

VALVE

C 4

270 PSI

C3

C 2

SCRUB

DECK

C YLIND ER

C1

SQU EEGE

E

DECK

C YLINDER

B

A

P

RE

TU RN

BLOCK

3.05

Cir.

T

FILTER

B

D

IN

N RO

L

VALVE

A

OUT

C

L F CYL ND

ER

15.0 Cir.

WH EEL

1.24

Cir .

.

0

1.

5 GP M

D RI VE &

AUXILI AR Y

PUMP

I DER

10.

0

Cir .

10.

0

SCRU BR S

MOTORS

Cir.

4

3

N

O

MOTOR

W ET SWEEP

BYPA SS VALUE

(OPTIONAL)

4.5

0

T

2

1

P1

.75

GPM

2 50 0

PSI

P

MAIN CONTROL

VALVE

T 1

RESERVOIR

American-Lincoln

7760

1-37

HYDRAULIC SCHEMATIC - MANUAL DUMP

2200

PSI

0.154

CIR.

L

E STEERING

CYLINDE R

R

P

1500

PSI

3.05

Cir.

T

P5113/0803

2

3

T

1

T

A

1.93

CIR.

B

SIDE

VALVE

O L

2200

RPM

1.24

CIR 1.02

CIR

1.02

CIR

American-Lincoln

7760

10.0

CIR.

10.0

CIR.

10.0

CIR.

4.5

CIR.

2500

PSI

1-38

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 and clean the air cleaner as conditions demand. Do not let the engine become coated with dust and dirt.

RIGHT,BROOM

CHAMBER DOOR

MAIN

BROOM

DRIVE

HUB

P-5116

TO REMOVE MAIN SWEEPING BROOM

IDLER

ARM

RETAINING

BOLT

FIGURE 28

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 floor. The area of broom bristle contact with the floor should be 2 to 3 inches (5 to 8 cm.) wide.

AMERICAN-LINCOLN

7760

1-39

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 (page 68, part number 7-03-04151 and 7-03-04152). The frame is supported by two flange bearings (part number 2-00-04889).

These bearings are located inside the broom doors. The carriage bolts (part number 2-00-00196) on the two end flanges 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 (5cm.) broom pattern.

1.

Loosen the nut located in the engine compartment (See page 70, key number 8).

2.

Set the broom lever to the “Sweep” position and adjust the lock nut (key number 8) to obtain a 2-inch (5cm.) broom pattern. The lock nut will move the adjusting rod (key number 3) that adjusts the sweeping pattern of the broom for wear.

RAISE OR

LOWER FOR

WEAR ADJUSTMENT

FLOOR

CONTACT

AREA

FORWARD

SIDE

BROOM

3

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 floor 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 (Key #8 on page 72 ). Remove the side broom. Transfer the side broom flange spacer and screws to the replacement side broom (Keys #3, 4, 5, 16,and 17). Put the replacement side broom on the shaft. Put the retaining screw (Key # 8) in position and tighten.

1-40 AMERICAN-LINCOLN

7760

GENERAL MACHINE MAINTENANCE

1/16"

SET FLAP

EVEN WITH FLOOR

FIGURE 30 P-4793

FLAPS

The urethane and rubber flaps are susceptible to damage and should be inspected regularly and maintained in good condition. The side flaps are adjustable and should be maintained at approximately 1/16" (16 mm.) above the floor.

The front and rear flaps have no provision for adjustment.

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

AMERICAN-LINCOLN

7760

1-41

GENERAL MACHINE MAINTENANCE

BRUSH

LATCH

P-4762 FIGURE 31

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, first 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).

1-42 AMERICAN-LINCOLN

7760

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.

RECOVERY TANK LID AND TANK ACCESS

Remove the two hex head screws to access the inside of the recovery tank lid. The hydraulic oil cooler is located inside the lid. See figure 34. To gain access to the Recovery Tank, open the engine cover and loosen the hold down strap located on the side of the recovery tank.

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 flip 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 flipping 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.

5

10

6

APPLY NEVERSEIZE

8

P5165/9907

AMERICAN-LINCOLN

7760

9

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 flat surface, making sure the rear squeegee blade is perpendicular to the surface. Adjust caster 3/16" above the flat surface, Lock jam nuts.

1-43

GENERAL MACHINE MAINTENANCE

HOLD DOWN STRAP

RECOVERY

TANK LID

P-4898

TENSION

KNOB

PARKING

BRAKE

PULL ROD

FIGURE 32

REMOVE 2

SCREWS TO

EXPOSE INTERIOR

OF RECOVERY

TANK LID

BRAKE

PEDAL

BRAKE

LEVER SPRING

P-4886 FIGURE 33

BRAKE ADJUSTMENT

1.

Connect pull rod, preset to 44.5 inch (113 cm.) clevis centerlines, to brake lever then adjust to fit with brake pedal full up and the spring attached.

2.

Adjust tension knob on parking brake lever to hold machine on an 8-degree incline.

1-44 AMERICAN-LINCOLN

7760

GENERAL MACHINE MAINTENANCE

AIR INTAKE SYSTEM

NOTE

Monitor the air filter indicator daily

The importance of maintaining an air filter cannot be overemphasized. Dirt ingested through improperly installed, improperly serviced, or inadequate air filter elements wears out more engines than long hours of operation. Even a small amount of dirt will wear out a set of piston rings in just a few hours. Operating with a clogged air filter element also causes the fuel mixture to be richer, which can lead to formation of harmful sludge deposits in the engine.

Always cover the air intake when the air filter is removed for servicing. Do not neglect servicing the air filter. Use only approved replacement parts. Keep all other air intake components, such as hoses and clamps, secure and in good condition to prevent entrance of unfiltered air.

Over maintenance can cause damage. Removing the air filter element more often than is needed allows contaminants to enter the engine unnecessarily.

AIR FILTER

The engine air filter housing includes a dust cap and a dry cartridge type air filter element. The dust cap must be emptied of dirt daily. The air filter element must be replaced every 75 to 100 hours. The filter element must be replaced if it is damaged or has been cleaned three times.

Replace the engine air filter only when the Yellow Filter Service Indicator reaches the red band at the top of the indicator. The yellow indicator will stay at the red band when the engine is off. Reset the indicator by depressing the black button at the bottom of the indicator.

P-4713

TO REPLACE AIR FILTER ELEMENT

1.

Stop the engine and engage the machine parking brake.

WARNING

Always park on a level surface, stop the engine, and engage parking brake before working on the machine to keep it from creeping or rolling.

2.

Unscrew the clamp ring on the filter.

3.

Remove the dust cap.

4.

Empty the dust cap.

5.

Remove the filter wing nut.

6.

Gently pull the filter element out of the filter housing.

AMERICAN-LINCOLN

7760

1-45

GENERAL MACHINE MAINTENANCE

E D C A

A

B

B

FIGURE 35

REMOVING AIR FILTER ELEMENT

A. Filter Housing

B. Clamp Ring

C. Filter Element

D. Wing Nut

E. Dust Cap

P-4504 FIGURE 36

CLEANING AIR FILTER ELEMENT

A. Air Hose

B. Filter Element

7.

Clean the interior of the air cleaner housing with a damp cloth. Clean the element housing sealing surfaces.

8.

Using an air hose, direct dry, clean air maximum 30 PSI up and down pleats on the inside of the filter. Do not rap, tap, or pound dust out of the element.

WARNING

Wear approved eye protection when using air or water hoses to prevent eye injury.

9.

After cleaning the air filter element, inspect it for damage by placing a bright light inside. The slight estrupture requires replacement of the filter. Clean and inspect the ends of the element. They should be unbroken and flexible. Remember that the element must be replaced after it has been cleaned three times.

A

B

1-46

P-4503 FIGURE 37 P-4505

A

FIGURE 38

AMERICAN-LINCOLN

7760

GENERAL MACHINE MAINTENANCE

INSPECTING AIR FILTER ELEMENT

A. Bright Light

B. Filter Element

DUST CAP

A. Dust Cap

10. Install the new or cleaned filter element so the fins on the element are at the intake end of the air cleaner.

Use care so the fins are not damaged. Tighten the wing nut attaching the element.

11. Install the dust cap with the arrows pointing up. Tighten the clamp ring to hold it in place. Check all intake hose connections for leaks or abrasions.

12. Reset filter monitor after any filter service.

COOLANT LEVEL

3/4 TO 1-1/2 INCHES

BELOW CAP SEAL

COOLING SYSTEM

COOLANT LEVEL

Check the coolant level in the radiator daily, only when the engine is cool.

Maintain the coolant level at approximately 3/4 inches

(1.9 cm.) below the filler neck seat on the radiator when the coolant is cold.

Whenever coolant level checks are made, check condition of radiator cap rubber seal. Make sure it is clean and free of any dirt particles. Rinse off with clean water if necessary. When replacing cap on radiator, also make sure radiator filler neck is clean.

P-4404 FIGURE 39

WARNING

Never remove the radiator cap under any conditions while the engine is operating. Failure to follow these instructions could result in damage to the cooling system or engine and/or personal injury. To avoid having scalding hot coolant or steam blow out of the radiator, use extreme care when removing the cap from a hot radiator, if possible, wait until the engine has cooled, then wrap a thick cloth around the radiator cap and turn it slowly to the first stop. Step back while the pressure is released from the cooling system. When you are sure all the pressure has been released, press down on the cap (still with a cloth), turn and remove it. Do not add coolant to an engine that has become overheated until the engine cools. Adding coolant to an extremely hot engine can result in a cracked block or cylinder head.

Use only a permanent type coolant that meets FORD specification ESE-M97B44-A such as FORD Cooling System Fluid. Refer to the coolant chart on the container for additional antifreeze protection information. Do not use alcohol or methanol antifreeze, or mix them with the specified coolant. Plain water may be used in an emergency, but replace it with the specified coolant as quickly as possible to avoid damage to the system. With only water in the system, do not let engine run hot.

RADIATOR

Inspect the exterior of the radiator for obstructions. Remove all bugs, dirt or foreign material with a soft brush or cloth. Use care to avoid damaging the fins. If available, use compressed air or a stream of water in the opposite direction to normal airflow. Open door for access.

Check all hoses and connections for leaks. If any of the hoses are cracked, frayed, or feel spongy, they should be replaced.

AMERICAN-LINCOLN

7760

1-47

GENERAL MACHINE MAINTENANCE

DRIVE BELTS

The drive belt(s) should be properly adjusted at all times. Loose drive belts cause improper alternator, fan and water pump operation, and overheating. Overtightening the belt may result in excessive wear on the alternator and water pump bearings, as well as premature wear on the belt itself. Therefore, it is recommended that proper belt tension be maintained.

P-5090

BATTERY

1. Access the battery through the door located beside the driver’s seat.

2. Open the seat cover and unscrew the access bolt to the battery door.

3. Swing the battery door out.

4. Keep the top of the battery clean and dry.

Keep the terminals and connectors clean. To clean the tops of the batteries, use a damp cloth with a weak solution of ammonia or bicarbonate of soda solution. To clean the terminals and connectors, use a terminal and connector-cleaning tool.

5. Swing the battery door closed and fasten the access bolt.

6. Put the seat into position.

WARNING

NEVER allow the soda solution to enter the cells. This will permanently discharge the battery.

P-5090 FIGURE 40

GAS TANK

The gas tank is located under the driver’s seat. It may be filled from the rear of the machine.

1-48

P-4890 FIGURE 41

AMERICAN-LINCOLN

7760

GENERAL MACHINE MAINTENANCE

LP GAS SYSTEM

The propane powered Model 7760 is identical to the “standard” gasoline powered 7760, except that its fuel system has been modified to operate on LP vapor fuel.

The LP fuel system consists of several components not found on the gasoline system. The LP fuel system also contains the associated mounting hardware and plumbing for the LP components. The major LP components are as follows: These components are factory set, attempts at adjusting these components should only be made by authorized service personnel.

1.

An LP carburetor

2.

A combination water heated vaporizer and regulator

3.

A combination LP fuel line filter and lock off valve

4.

An LP fuel tank and fittings

LP GAS VAPORIZER-REGULATOR QUICK CHECK

Turn on the ignition switch and open the radiator cap. Check the coolant for bubbles. If bubbles are present, the vaporizer may have a leaking gasket or may have developed a pinhole leak, allowing the LP fuel to enter the cooling system.

LP GAS FUEL TANK

The LP tank is located under the driver’s seat. Use only the proper size and type of LP tank. The 7760 LP powered sweeper uses 33.5 lb. liquid withdraw tank. The DOT designation of the tank is DOT 4BW-240.

NEUTRAL ADJUSTMENT

NOTE

Orientation of the transmission arm assembly depends upon which engine is installed in the 7760

Sweeper Scrubber. See pages 120 through 125 for proper identification.

NOTE

Adjustment directions given are as seen from the operator’s position in the driver’s seat.

1.

Check engine no load RPM; 7760, 2150 RPM. Check hydraulic reservoir oil level.

2.

Raise rear of machine onto jack stands so rear wheel is off the ground.

3.

Loosen the jam nut away from the adjustment nut.

4.

If the rear drive wheel is turning forward, turn the adjustment nut clockwise (this will shorten the threaded shaft). If the rear drive wheel is turning in reverse, turn the adjustment nut counter clockwise (this will lengthen the threaded shaft).

5.

Tighten the jam nut against the adjustment nut.

6.

Test for operation of neutral with engine at full throttle. If the rear drive wheel turns, repeat adjustment steps

3, 4 and 5.

SPERCO ROD END

1/4 - 28 JAM NUT

THREADED ROD

TRANSMISSION

ARM

CENTERING CONTROL

ADJUSTMENT NUT

1/4 - 28 JAM NUT

FIGURE 42 P-5093

AMERICAN-LINCOLN

7760

1-49

PARTS LIST LEGEND

HS

S

SH

-KCP

-CP

-OP

-FDP

-HDP

-FP

-COP

ADJ

ADJ.SP

BHM

BHS

CAPT.SL

CAPT.WG

FHM

FIL.HM

HHC

HHM

HIHD

HSHC

HSFHC

KNH

MHHC

PHM

RHD

RHM

RHW

SHC

SHTB

SQ

TB

THM

WELD

WG

ABBREVIATIONS - SCREWS

= Adjusting Screw

= Adjusting Plunger Screw

= Binding Head Machine Screw

= Button Head Socket Screw

= Captivated Slotted Screw

= Captivated Wing Screw

= Flat Head Machine Screw

= Filister Head Machine Screw

= Hexagon Head Cap Screw

= Hexagon Head Machine Screw

= 1/2 High Head Screw

= Hexagonal Socket Head Cap Screw

= Hexagonal Socket Flat Head Cap Screw

= Knurled Head Screw

= Metric Hexagon Head Cap Screw

= Pan Head Machine Screw

= Round Head Drive Screw

= Round Head Machine Screw

= Round Head Wood Screw

= Shiny Crown Cap Screw

= Shoulder Thumb Screw

= Square Head Screw

= Thumb Screw

= Truss Head Machine Screw

= Weld Stud

= Wing Screw

ABBREVIATIONS - SETSCREWS

= Hexagonal Socket Setscrew

= Slotted Setscrew

= Square Head Setscrew

= Knurled Cup Point Setscrew

= Cup Point Setscrew

= Oval Point Setscrew

= Full Dog Point Setscrew

= Half Dog Point Setscrew

= Flat Point Setscrew

= Cone Point Setscrew

C-2004

1-50 AMERICAN-LINCOLN

7760

GENERAL TROUBLESHOOTING

PROBLEM

Sweeping does not function

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

Poor water pick up at squeegee

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..

Water spill from squeegee 1. Side squeegee blades, poor contact with floor

Lack or suction at rear

2. Squeegee blades worn or damages

3. Too much solution being applied before making turns

4. Brushes rotating opposite direction

1. Clogged suction hose or pick up tool

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'

4. Check position of switches.

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

2. Check all hose connections for looseness or damage.

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

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.

AMERICAN-LINCOLN

7760

1-51

GENERAL TROUBLESHOOTING

PROBLEM

Poor scrubbing

PROBABLE CAUSE

1. Worn scrubbing brushes

2. Incorrect method of operation

3. Wrong cleaning agent or mixture

4. Poor solution distribution

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 Engine runs, but machine will not move on level ground

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

2. Front wheels jammed or brakes locked

Machine moves slowly

3. Hydraulic pump trouble

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

1. Low hydraulic oil level

2. Brake dragging

3. Hydraulic oil temp, too high

Hydraulic pump making excessive noise

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 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

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

1-52 AMERICAN-LINCOLN

7760

SCHEMATIC DIAGRAM OPTIONS

From

Brush

Deck Switch

Wire 40

(C)

4

1

2

3

AUTOMATIC

OVERRIDE

(NO)

(OIL)

PRESSURESTAT

(NC)

(NO)

(C)

(NC)

(WATER)

ALARMSTAT

NOTE:

ALARMSTAT AND PRESSURESTAT

ARE SHOWN WITH ENGINE OFF.

ALARMSTAT

(NO) CLOSES 214°F

(NC) OPENS 220°F

(NO) CLOSES 194°F

(NC) OPENS 200°F

FORD LRG-423

PERKINS DIESEL

PRESSURESTAT

(NC) CLOSES 9 PSI

(NO) OPENS 5 PSI

(No) In Neutral

Position Only

Exisisting Solenoid 4

(Normal Brush Rotation)

Wire 46G, 46F

P-5127

CB-8

6E

EXISTING

CB-5

CB-10

15A

AMERICAN-LINCOLN

7760

SQUEEGEE SW.

RAISE (TRANSVERSE)

D2

BACKUP SW.

LOWER

EXISTING CIRCUIT

WIRE

#30

REVERSE

SQUEEGEE FAN MOTOR SOL.

(12)

SQUEEGEE

POWER

WAND SW.

(+)

RED

(POWER WAND OPTION))

(-)

CYLINDER SOL.(7)

WIPER

MTR.

H-SW.

OFF

HIGH

LOW

RESISTOR

C

MTR.

HEATER

1-53

ORDERING PARTS

MODEL NO.

SERIAL NO.

Manufactured By

AMERICAN LINCOLN

TECHNOLOGY

BOWLING GREEN, OHIO

American-Lincoln

1-54 AMERICAN-LINCOLN

7760

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