Nilfisk ALTO 91WS - Manuals

1-6 American-Lincoln 91 WS BATTERY POWERED MACHINESThe battery powered machines may be shipped with the batteries and charger in separate containers. Thebatteries will need to be filled with electrolyte if batteries were shipped dry. 1. Uncrate the machine and carefully remove it from the skid to pr...

American-Lincoln 1 - 7 91 WS SAFETY PRECAUTIONSThe following statements are used throughout this manual as indicated in their descriptions: DANGER To warn of immediate hazards which will result in severe personal injury or death. WARNING To warn of hazards or unsafe practices which could result in s...

American-Lincoln 1 - 9 91 WS MACHINE CONTROLSKEY SWITCHThe key switch is a two position rotary ON/OFF switch that is located on the control panel. The filter shaker will activate for 20 seconds after the key switch is turned to the “OFF” position unless equippedwith the optional filter shaker switch...

1-10 American-Lincoln 91 WS START BUTTON (Gas/LP Only)The start button is located on the right side of the console next to the key switch. The start button is a momen-tary push button switch that energizes the electric starter motor when pushed. The key switch must be turnedon before using the start...

American-Lincoln 1 - 11 91 WS SIDE BROOM LIFT HANDLEThe Side Broom lift handle is located at the rear of thesweeper on the right side. The lift handle raises and lowersthe side broom. Broom rotation stops when the side broomis raised. -To raise the side broom, pull the handle out and down tolock the...

1-12 American-Lincoln 91 WS FILTER MANIFOLD LATCHThe filter manifold latch is located on the hinged filtermanifold assembly. The latch must be disengaged beforedumping the hopper or removing the dust filter. Apply slightdown pressure on the edge of the manifold assembly toease removal. To disengage ...

1-14 American-Lincoln 91 WS BATTERY MACHINE OPERATIONCharge the batteries after operating the machine. See the battery charging instructions in this manual. Use thepre-start checklist and follow the service chart for daily check points. Read and follow the safety precautions toassure safe, trouble f...

1-16 American-Lincoln 91 WS TO DRIVE MACHINE FOR TRANSPORTUse these instructions to drive the machine for transport to the sweeping site. WARNING Be careful when operating the machine on a ramp or incline. Always move slowly on a ramp. Do not turn this machine on a ramp. Do not stop and leave this m...

American-Lincoln 1 - 17 91 WS POST OPERATION CHECKLISTAfter stopping the machine perform these post operation checks. 1. Check sweeping brooms for wear or damage. 2. Check all flaps for wear, damage or adjustment. 3. Close the supply valve on the LP cylinder. Check the fuel level and install a fille...

1-18 American-Lincoln 91 WS TO CHARGE THE MOTIVE POWER BATTERIES (Battery powered machines only)1. Read the detailed instructions provided on the charger. 2. Be sure all controls are “OFF” and machine is located in an area with good ventilation. 3. Open the top cover. The top cover must remain open ...

1-20 American-Lincoln 91 WS SERVICE CHART The following is a guide for servicing and maintaining your 91WS Walkbehind Sweeper. For best machineperformance, the following operation checks should be made at these intervals. For service assistance, consultyour Clarke/American-Lincoln distributor. For b...

1-22 American-Lincoln 91 WS HOW TO SWEEPThe sweeper is intended for use on hard relatively flat surfaces such as cement, asphalt and wood block floors.Exercise care when maneuvering to keep wheels from dropping off curbs or into pot holes. Do not sweep overobstructions. The sweeper is designed for d...

American-Lincoln 1 - 23 91 WS TO LOWER BROOM C0613/9705 MAIN BROOM ADJUSTMENT TO RAISE BROOM MAIN BROOMTo prevent the main broom from setting in one direction and to provide maximum life of the broom. It is recom-mended that the broom be turned end for end periodically. TO CHECK THE MAIN BROOM SWEEP...

1-24 American-Lincoln 91 WS 2 3 1 4 CO622fr TO REPLACE THE MAIN BROOMThe main broom should be replaced when the bristles become worn to less than 2". The main broom is held inplace by a single threaded knob. This feature provides for easy removal and installation of the main broomwithout the nee...

American-Lincoln 1 - 25 91 WS SIDE BROOMSThe side broom’s sweeping angle is not adjustable, however the height of the side brooms can be adjusted tocompensate for wear as the brooms become worn from use. Open the top cover and turn the adjustment nut tovary the side broom sweep height . TO CHECK THE...

American-Lincoln 1 - 27 91 WS FLAP SERVICE INSTRUCTIONSThe flaps are very important to the sweeping process. Inspect the flaps daily and replace any flap that showssigns of wear or deterioration. The side flaps are adjustable and should be adjusted so there is a recommended1/16" to 1/8" gap ...

1-28 American-Lincoln 91 WS WARNING To prevent accidental starting, remove spark plug wire when servicing engine or equipment. Disconnect the battery at the negative terminal if the engine has an electric starting system. NOTE Check the oil level regularly. Be sure correct oil level is maintained. C...

1-30 American-Lincoln 91 WS SERVICE INSTRUCTIONS DRIVE SYSTEM SERVICE INSTRUCTIONS - Cont.TO REPLACE THE REVERSE BELT1. Remove the two (2) inspection plugs on the right hand side of the machine which allows access to thebearing plate on the differential shaft. Loosen and remove both bolts holding th...

American-Lincoln 1 - 31 91 WS LP SAFETY PRECAUTIONS WARNING Keep cigarettes, sparks, and open flame away when working on LP equipment when inspecting for gas leaks or when LP tanks are present. WARNING Check all components for proper operation when needed. Replace LP components when needed. Never by...

1-32 American-Lincoln 91 WS LP GAS COMPONENTS FUELLOCK/FILTER TANK RELIEF VALVE TANK VALVE LPG FUEL TANK PRESSURE RELIEF VALVE REGULATOR/VAPORIZER CARBURETOR P4502B FIGURE 21 LP GAS SYSTEMThe propane powered Model 91WS fuel system has been modified to operate on LP vapor fuel instead of gas. The LP ...

American-Lincoln 1 - 33 91 WS LP GAS COMPONENTS LPG INLET HAND PRIMER PIN PLUG VAPOROUTLET P-4563A WATER MOUNTING HOLES P4563 FIGURE 22 LP CHECKLISTThis checklist can be preformed quickly and should be done before every use. Be sure to make all necessarychecks as listed on the Maintenance Chart as d...

1-34 American-Lincoln 91 WS LP TANK CARE USE AND CARE OF LP TANKSIf an LP tank is damaged or leaking, it should be immediately removed to a designated safe area and the properpersonnel should be notifies. Do not attempt to make repairs to the cylinder regardless of its condition. Repairsmust be made...

American-Lincoln 1 - 35 91 WS STANDARD METRIC TORQUE VALUES When tightening torques are not specified, tighten the bolts and nuts according to the table below. GRADE No-Grade or 4T 7T 9T SS41, S20C S43C, S48C SCR435, SCM435 Nom. Unit N.m kgf.m ft-lbs N.m kgf.m ft-lbs N.m kgf.m ft-lbs Dia. M6 7.85 0....

1-36 American-Lincoln 91 WS FRACTION FRACTION DECIMAL DECIMAL MILLIMETER MILLIMETER C-2001/9907 DECIMAL METRIC & CONVERSION TABLE

American-Lincoln 1 - 39 91 WS Key No. Part Number Description H 1 2-00-05060 Screw, #6-32 x 1.250 RHM H 2 2-00-00455 Flat Washer, .375 x .156 x .047 H 3 2-00-01499 Lock Washer, #6 Med. Helical Spring H 4 2-00-00624 Nut, #6-32 Hex H 5 2-00-00645 Nut, Hex Fiber Insert #6-32 H 6 2-00-00049 Screw, # 10-...

1-40 American-Lincoln 91 WS Key No. Part Number Description H63 2-00-02312 Lock Washer, 1/2 HS Med. H64 2-00-00596 Nut, Hex. 1/2-13 x .750 x .437 H65 2-00-04936 Nut, 1/2-13 Fibre Lock H66 2-00-02689 Screw, 1/2-20 x 1.000 HHC H67 2-00-00614 Nut, Hex 1/2-20 H68 2-00-00640 Nut, Hex Fiber Insert 1/2-20 ...

American-Lincoln 1 - 41 91 WS H125 2-00-00418 Flat Washer, .984 x .627 x .063 H126 2-00-03466 Screw, #10-16 x .500 H127 2-00-03522 Washer, 5/16 x 1.250 x .050 H128 2-00-04681 Carriage Bolt, 5/16-18 x 1.250 H129 2-00-02311 Lock Washer, 4.38 Split H130 2-00-03334 Screw, .44-20 x 1.000 HHC H131 2-00-03...

1-42 American-Lincoln 91 WS Key No. Part Number Description H187 2-00-00071 Screw, #10-24 x 1.250 RHM H188 2-00-01987 Flat Washer, .438 x .200 x .036 sst H189 2-00-00460 Flat Washer, .437 x .192 x .031-s H190 2-00-00529 Lock Washer - helical sps, 8 MDM H191 2-00-00602 Nut, MSCR - Hex, 8-32 H192 2-00...

American-Lincoln 1 - 45 91 WS ® ® MODEL NO. SERIAL NO. Manufactured By AMERICAN LINCOLN TECHNOLOGY BOWLING GREEN, OHIO Parts may be ordered from American-Lincoln authorized distributors. Record the information from the American-Lincoln serial number plate to avoid delays in filling your order. Parts...

American-Lincoln 2-1 91 WS Frame .................................................................................................................................................. 2-2 Covers ................................................................................................................

American-Lincoln 2-3 91 WS H136 H136 H136 H46 C1175-1/9604 H43 H35 H26 H26 H27H15 H136 H136 H86 FRAME - EXPLODED VIEW

2-4 American-Lincoln 91 WS KEY NO. PART NUMBER DESCRIPTION QTY 1 8-32-00050 Hinge 2 2 8-16-07358 Rear Cover 1 3 8-10-00027 Cable 1 4 8-16-07415 Cover (24VDC ONLY) 1 8-16-07416 Cover (GAS AND LP ONLY) 1 5 8-05-07089 Bar, Grill (Gas & LP Only) 2 HARDWARE USED: H8 2-00-00039 Screw, #10 - 24 x .675 ...

American-Lincoln 2-5 91 WS H14 H136 H27 H26 H15 H26 H141 H12 H8 H93 H26 H25 H9 C1175-2-9604 COVERS - EXPLODED VIEW

2-6 American-Lincoln 91 WS KEY NO. PART NUMBER DESCRIPTION QTY. 1 8-23-03067 Washer, Fwd/Rev Outer 1 2 8-03-04312 Arm, Forward/Reverse 1 3 8-23-03066 Washer, Fwd/Rev Inner 1 4 8-58-05276 Washer, Fwd/Rev 1 5 8-60-00183 Idler Pulley 1 6 8-60-00177 Idler Pulley (Fwd/Rev) 1 7 2-00-03306 Bearing 2 8 8-42...

American-Lincoln 2-7 91 WS H46 H43 H139 H38 H62 H59 H52 H137 H52 H52 H65 H62 H146 H26 H34 H79 H12 H112 H46 H76 C1176-3/0103 WHEEL DRIVE - EXPLODED VIEW

2-8 American-Lincoln 91 WS KEY NO. PART NUMBER DESCRIPTION QTY. 1 0885-086 Differential 1 2 8-08-00800 Bracket, Differential Bearing 1 3 2-00-03997 Bearing, Flange 2 4 8-25-06012 Flange, Welded 1 5 8-89-08072 Drive Wheel 2 6 8-65-00046 Axle Retainer 2 7 8-75-05069 Idler Sprocket 2 8 8-60-00178 Diffe...

American-Lincoln 2-9 91 WS H134 H62 H62 H140 H141 H15 H62 H65 H144 H143 H52 H82 H48 H102 H12 H46 H36 H43 H46 H146 H52 H140 H141 H15 H9 H62 H146 H142 H131 C1176-2/9604 LOWER WHEEL DRIVE - EXPLODED VIEW

2-10 American-Lincoln 91 WS KEY NO. PART NUMBER DESCRIPTION QTY 1 8-81-00176 Main Broom Arm Support 1 23 7-39-00025 Knob 1 4 2-00-02049 Bearing 2 5 7-60-00141 Pulley 1 6 8-03-04308 Arm, Belt Idler (Upper) 1 7 8-03-04307 Arm, Belt Idler (Lower) 1 8 8-60-00174 Pulley, Idler (Main Broom) 2 9 2-00-03306...

American-Lincoln 2-11 91 WS H146 H146 H33 H144 H144 H149 H120 H48 H36 H49 H65 H65 H37 H125 H125 H125 H147 H125 H43 H46 H52 H54 H52 H46 H43 H34 H148 H148 C1177-2/9707 MAIN BROOM - EXPLODED VIEW

2-12 American-Lincoln 91 WS KEY NO. PART NUMBER DESCRIPTION QTY. 1 8-70-05291 Broom Shaft 1 2 8-03-04311 Arm, Broom (R.H.) 1 3 8-03-04310 Arm, Broom Idler 1 4 2-00-02243 Key 2 5 2-00-03158 Spacer 2 6 7-60-00142 Pulley 1 7 8-33-09062 Driver Hub 1 8 8-30-05112 Guard 1 9 8-33-09059 Idler Hub 1 10 2-00-...

American-Lincoln 2-13 91 WS C1177-1 H61 H141 H14 H65 H145 H44 H33 H125 MAIN BROOM ARMS - EXPLODED VIEW

2-14 American-Lincoln 91 WS KEY NO. PART NUMBER DESCRIPTION QTY 1 8-03-04313 Side Broom Arm (Welded) 1 2 0885-087 Gear Box Assembly 1 3 8-08-03215 Side Broom 1 8-08-03231 Side Broom Nylon 1 4 8-25-06006 Flange 1 5 8-60-00184 Pulley, Gear Box 1 6 7-76-00051 Spring 1 7 8-08-00806 Bracket, Side Broom (...

American-Lincoln 2-15 91 WS C-1182 H46 H36 H62 H150 H43 H43 H37 H20 H16 H46 H46 H135 H36 H128 H150 H40 H27 H26 H22 H46 H26 H25 H135 BELT DIAGRAM 13 17 12 11 16 15 17 18 6 2 4 3 1 7 8 9 10 14 5 MOTOR PULLEY RIGHT HAND SIDE BROOM - EXPLODED VIEW

American-Lincoln 2-17 91 WS H27 H27 H27 H27 H27 H8 H12 H26 H26 H26 H26 H126 H126 H100 H15 H15 C1178/9705 HOPPER - EXPLODED VIEW

2-18 American-Lincoln 91 WS KEY NO. PART NUMBER DESCRIPTION QTY. 1 8-24-04140 Manifold, Filter 1 2 8-08-00817 Filter Manifold Bracket 1 3 8-08-00819 Filter Manifold Bracket 1 4 8-33-02331 Hose, Impeller Inlet 1 5 8-41-00033 Filter Manifold Latch 1 6 8-55-08114 Shaker Pivot Pin 1 7 7-58-05278 Shaker ...

American-Lincoln 2-19 91 WS C1179-1/9907 H86 8 H27 H26 H26 H27 12 H86 9 10 H287 11 7 6 H11 H10 H15 16 H27 H26 3 H26 H86 H26 H25 H20 1 13 H126 5 H6 H136 17 14 4 15 2 FILTER SHAKER - EXPLODED VIEW

2-20 American-Lincoln 91 WS KEY NO. PART NUMBER DESCRIPTION QTY. 1 8-16-07392 Plate Impeller Cover 1 2 8-81-00172 Support, Impeller 1 3 8-70-05296 Impeller Shaft 1 4 8-60-00182 Impeller Drive Pulley 1 5 2-95-04317 Bearing, Impeller Shaft 2 6 8-23-00012 Impeller Fan 1 7 8-75-01203 Spacer, Impeller Co...

American-Lincoln 2-21 91 WS H26 C1179-2/9610 REAR COVER H46 H43 H36 H35 APPLY NEVER - SIEZE H48 H52 H26 H27 H141 H169 H17 H46 H43 BELT DIAGRAM 19 18 10 17 20 13 12 11 15 14 6 5 3 9 8 4 2 7 1 16 IMPELLER -EXPLODED VIEW

American-Lincoln 2-23 91 WS H46 H43 H11 H9 H2 H12 H5 H27 H90 H8 H1 H27 H52 H4 H12 H43 H46 H26 H90 H90 H128 H15 H144 H149 H26 H62 H52 H162 H163 H46 H131 H161 C1187/0009 BATTERY - EXPLODED VIEW

American-Lincoln 2-25 91 WS 16 15 9 8 7 6 12 4 10 H49 H52 H35 H52 H120 H48 H82 H129 H46 H144 H39 H151 H33 H144 H43 H120 H62 H131 5 9 14 17 H26 H132 1 13 2 3 H144 H46 STARTER POST H26 H15 H313 H314 C1184/9907 ENGINE - EXPLODED VIEW

American-Lincoln 2-27 91 WS OFF OFF FIL TER SHAKER CB-1 CB-2 ON M M AB S G I BACK WIRING VIEW TOP POWER PANEL BOTTOM VIEW M1 RELAY 1 2 3 4 85 30 86 87 WIRE #4 9 8 12 10 4 3 1 1 3 2 6 7 5 11 2 M1 20 SEC. TIMER WIRE DUCT 70 A FUSE SOL. 1A (-) POST ROUTE THROUGH CLAMP (+) MOTOR LEAD A (-) MOTOR LEAD RE...

2-28 American-Lincoln 91 WS KEY NO. PART NUMBER DESCRIPTION QTY 1 2-00-04345 Tie Raps 7 2 2-00-04584 Terminal, .156 Female Bullet 1 3 2-00-04578 Terminal, .156 Male Bullet 1 4 8-90-07435 Wire, Battery (-) 1 5 8-90-07436 Wire, Starter 1 6 0895-112 Machine Harness 1 7 8-90-07441 Wire, Jumper #4A 2 8 2...

American-Lincoln 2-35 91 WS 4 6 8 10 11 13 1 5 7 14 15 15 16 21 22 17 20 17 20 18 19 2 3 12 9 C1183-2/1003 DECALS - EXPLODED VIEW

American-Lincoln 3-1 91 WS Left Hand Side Broom Option ................................................................................................... 3-2LP Option .................................................................................................................................. 3...

3-2 American-Lincoln 91 WS OPTION 0880-625 KEY NO. PART NUMBER DESCRIPTION QTY 1 8-03-04313 Side Broom Arm (Welded) 1 2 0885-087 Gear Box Assembly 1 3 8-08-03215 Side Broom 1 4 8-25-06006 Flange 1 5 8-60-00184 Pulley, Gear Box 1 6 7-76-00051 Spring 1 7 8-08-00806 Bracket, Side Broom (Outer) 1 8 7-76...

American-Lincoln 3-3 91 WS H46 H135 H26 H26 H26 H27 H26 H26 H86 H86 H16 H43 H46 H39 H39 H46 H128 H135 H131 H86 H135 C0624 LEFT HAND SIDE BROOM OPTION - EXPLODED VIEW

3-4 American-Lincoln 91 WS KEY NO. PART NUMBER DESCRIPTION QTY 1 2-60-02296 Hydrostatic Relief Valve 1 2 * Rubber Cap, 1/2" I.D. 1 3 * Fitting, 1/4 NPT x 3/8 SAE 90° 1 4 * Fitting, 1/4 NPT FM x 3/8 SAE STR 1 5 * Hose, Liquid Gas, Aux. 1 6 * Hose, Dry Gas, 22.00 1 7 2-60-02297 Vacuum Shut Off 1 8...

American-Lincoln 3-5 91 WS C0625/9610 EXISTING ADAPTOR TO FUEL PUMP REMOVE EXISTING CARBURETOR AND REPLACE WITH #22 H132 H150 22 18 14 12 13 13 11 7 8 20 3 15 H150 26 28 27 1 2 21 19 16 4 5 6 L/P TANK SUPPORT TO L/P TANK CONNECTOR LP OPTION - EXPLODED VIEW

3-6 American-Lincoln 91 WS 1 2 3 4 5 6 C0626 FOAM FILLED TIRE OPTION OPTION 0880-626 KEY NO. PART NUMBER DESCRIPTION QTY 1 0860-581 Wheel Assembly, Foam Filled 2 2 8-75-01202 Spacer, Wheel REF 3 2-00-04636 Bearing 2 4 2-00-03266 Washer 2 5 2-00-00505 Lock Washer, 3/8 Int. Tooth 4 6 2-00-00233 Screw,...

American-Lincoln 3-7 91 WS H170 C1168/9510 H169 WET SWEEP BYPASS OPTION KEY NO. PART NUMBER DESCRIPTION QTY 1 8-16-07380 Cover, Impeller (Welded) 1 2 8-57-05026 Pivot, Valve 1 3 8-57-05027 Pivot, Valve (Threaded) 1 4 8-58-05790 Plate, Valve 1 5 7-13-07104 Clamp, Hose 1 6 8-16-00060 Control, Damper 1...

3-8 American-Lincoln 91 WS 0880-640 (BATTERY MACHINE) KEY NO. PART NUMBER DESCRIPTION QTY. 1 8-25-08205 Flap, Door 1 2 8-25-08204 Flap, Rear Outside 1 3 8-25-08206 Flap, R.H. Side 1 4 8-25-08207 Flap, L.H. Wheel Well 1 5 8-25-08208 Flap, Hopper 1 6 8-68-05085 Seal, Broom Door 1 7 8-68-05084 Seal, Br...

American-Lincoln 3-9 91 WS MAIN BROOM OPTIONS KEY NO. PART NUMBER DESCRIPTION QTY. 1 8-08-03222 Nylon 1 2 8-08-03216 Proex (Standard) 1 3 8-08-03230 Proex & Wire 1 4 8-08-03223 High Density Nylonl 1

3-10 American-Lincoln 91 WS SCHEMATIC & CONNECTION DRAWING - BATTERY C1188 CC CC 24 VOLT BATTERY BANK CB-2 10 AMP CB-1 10 AMP M1 30 87 SHAKER MOTOR SHAKER MOTOR RELAY DRIVE #1 TLH1 33X 2159 #3 #4 (G) (I) #2 86 85 12 VOLT SHAKER SWITCH 1A 1 4A 4A 7D,7E 7E 7C,7D 7A,7B 7B,7C 7C,7D 4D,4E 4E 4C 4B,4C...

3-12 American-Lincoln 91 WS BATTERY .................................................................................................................................. 1-27BATTERY ............................................................................................................................

American-Lincoln 3-15 91 WS AMERICAN-LINCOLN 91WS WALK BEHIND MACHINE “BUMPER-TO-BUMPER” LIMITED WARRANTY I. COVERAGEA. Subject to the terms and limitations stated herein, American-Lincoln warrants, to the original purchaser only, to repair or replace, atits option and upon the terms set out below, ...