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PRELIMINARY

Part No. 4110520

TECHNICAL MANUAL

Safety, Operation, Parts, Maintenance, Service

LAWNAIRE IV



MODELS 544908, 544909

LAWNAIRE V



MODELS 544910, 544911

Summary of Contents for LAWNAIRE IV 544908

Page 1: ...PRELIMINARY Part No 4110520 TECHNICAL MANUAL Safety Operation Parts Maintenance Service LAWNAIRE IV MODELS 544908 544909 LAWNAIRE V MODELS 544910 544911...

Page 2: ...the equipment This manual contains essential operation and safety information and must remain with the unit at all times within easy access of any op erator Additional manuals are available through yo...

Page 3: ...7 OPERATION 11 7 1 Pre operation Check 11 7 2 Aerating 11 8 SERVICE 12 8 1 Touch Up Paint 12 9 STORAGE INSTRUCTIONS 13 10 TRANSPORTING 14 11 TORQUE CHART 15 12 ILLUSTRATED PARTS 17 12 1 Lawnaire IV Dr...

Page 4: ...Transport up to 320 f p m 97 5 M p m Aerate up to 305 f p m 93 M p m Engines Model 544908 Honda 4 0 h p 4 cycle Model GX120K1HX Starter Recoil on off switch Governor 3600 RPM no load Idle Speed 1400 1...

Page 5: ...1400 100 RPM Fuel Tank 66 gal 2 5 L Gear Reduction 6 to 1 Model 544911 Briggs Stratton 3 5 h p 4 cycle Model 093452 Type 0141 Trim 01 Starter Recoil on off switch Governor 3200 RPM 100 RPM no load Idl...

Page 6: ...e IV and Lawnaire V aerators Familiarize yourself with these as it is important to be aware of their presence and their meaning Operating Instructions This decal can be found on top of the handle bar...

Page 7: ...elds in place 2 The center symbols warn the operator and or bystanders to keep hands out of moving compo nents 3 The symbols on the right instruct the operator to read the service section of the opera...

Page 8: ...handle in place as shown in Figure 3 Figure 3 2 Pull up on the transport lift handle to raise the aerator to the transport position See Figure 8 Carefully roll the unit off the pallet FOR LAWNAIRE IV...

Page 9: ...FOR MODELS WITH BRIGGS STRATTON ENGINE Refer to the following steps and Figure 6 1 Loosen the throttle friction wing nut to allow free movement of the throttle control 2 Loosen the casing clamp screw...

Page 10: ...erate the drive a few minutes to seat the belts in the sheave grooves Observe the operation of the drive under its highest load condition usually starting 2 Check the tension on a new drive serveral t...

Page 11: ...forward increases the speed pulling the control back reduces the speed See Figure 8 1 3 2 Figure 8 1 Transport Lift Handle 2 Clutch Control Handle 3 Throttle Control 6 2 ENGINE CONTROLS The Lawnaire I...

Page 12: ...ch must both be in the ON position to start the engine Turn the On Off switch to OFF to stop the engine Using the choke will help start a cold engine After the engine starts adjust the choke for best...

Page 13: ...utch handle on a slope this will cause freewheeling allowing the unit to roll down the slope 7 2 AERATING NOTE For best performance and maximum tine penetration the lawn should be thoroughly watered t...

Page 14: ...ent and replace it if necessary 4 Lubricate the clutch pivot prior to each aerating season or as needed See Figure 13 1 Figure 13 1 Clutch Pivot Lube Fitting 5 Keep the drive belt free of oil and dirt...

Page 15: ...oil corresponding to the season the equipment will next be used 4 Remove the spark plug and squirt a small amount of engine oil into the cylinder Turn the engine over a few times to distribute the oil...

Page 16: ...tely 22 lbs NOTE Be sure to close the fuel shut off valve before transporting the unit REMOVABLE TRANSPORT WHEELS The rear wheels of the Lawnaire V are removable for transporting the aerator through f...

Page 17: ...42 68 102 150 203 339 513 790 1060 ft lb 13 28 46 75 115 165 225 370 591 893 1410 N m 18 38 62 108 156 224 305 502 801 1211 1912 ft lb 24 40 N m 33 54 HEX HEAD CAP SCREWS Grade 5 marking Minimum comme...

Page 18: ...NOTES 16...

Page 19: ...ILLUSTRATED PARTS 12 17 PARTS SECTION...

Page 20: ...30T 50P 1 4 2703508 Flange bearing 2 04 I D 4 5 2703783 Drum water 1 6 522480 Gasket 4 50 dia 1 7 522481 Gasket 3 00 dia 1 8 545786 Bearing Assembly 2 9 545887 Ring AY split 2 10 548604 Screw 5 16 18...

Page 21: ...742 2 Tine Wheel AY 1 2 2703160 2 Sprocket 42T 50P 1 3 2703508 Flange bearing 2 04 I D 4 4 522361 Tine coring 3 4 30 5 545786 Bearing Assembly 2 6 548604 Screw 5 16 18 x 3 4 3 7 548911 Nut 5 16 18 7 8...

Page 22: ...12 3 LAWNAIRE IV HANDLE GROUP 20 REF TINE COVER 1 2 3 5 7 8 9 10 11 12 13 14 15 16 17 18 19 20 23 21 22 24 25 17 6 4 17 12 8 9 18 26 28 27 29 30 28...

Page 23: ...crew 3 8 16 x 1 1 15 800073 Carriage bolt 3 8 16 x 1 25 1 16 800557 Carriage bolt 5 16 18 x 3 4 1 17 800697 Nut 5 16 18 crownlock 3 18 800698 Nut 3 8 16 crownlock 2 19 800710 Screw 5 16 18 x 1 1 20 81...

Page 24: ...12 4 LAWNAIRE IV FRAME GROUP 22 29 22 21 3 23 3 28 22 18 12 13 5 14 19 20 20 17 16 24 24 16 17 13 6 1 1 25 26 15 4 22 27 7 11 10 9 8...

Page 25: ...ght 1 11 2703759 2 Link assembly upper right 1 12 306367 Key woodruff 3 16 x 3 4 2 13 308091 Washer flat 1 2 x 1 1 16 x 3 32 2 14 521609 Pulley driven 10 1 15 521679 Bushing 2 16 521856 Bearing ball 2...

Page 26: ...HARDWARE SO THAT SPRING WILL NOT COME OFF WHEN CABLE IS LOOSE HONDA ENGINES USE EXISTING HARDWARE B S ENGINES USE 548898 SCREWS 32 27 6 7 34 34 34 34 26 11 36 5 2 41 14 1 30 35 25 29 40 33 13 3 12 42...

Page 27: ...114101 Rod adjustment 2 20 4114111 Spring torsion 2 21 4114319 Belt kevlar 1 22 4114608 Bushing shoulder 390 ID X 71 2 23 4115632 Knob 2 1 2 2 24 521608 Pulley 4 inch diameter 1 25 522516 Mount isolat...

Page 28: ...12 6 LAWNAIRE V DRUM GROUP 26 1 2 3 4 5 6 7 8 9 10 11 12 13 11 11 12 4 8 11 11...

Page 29: ...1 3 2703157 2 Sprocket 30T 50P 1 4 2703508 Flange bearing 2 04 I D 4 5 2703785 Drum water 1 6 522480 Gasket 4 50 dia 1 7 522481 Gasket 3 00 dia 1 8 545786 Bearing Assembly 2 9 545887 Ring assembly sp...

Page 30: ...12 7 LAWNAIRE V TINE WHEEL GROUP 28 8 7 1 6 2 4 10 9 3 7 5 7 5 3 9...

Page 31: ...l AY 1 2 2703160 2 Sprocket 42T 50P 1 3 2703508 Flange bearing 2 04 I D 4 4 522361 Tine coring 3 4 42 5 545786 Bearing Assembly 2 6 548604 Screw 5 16 18 x 3 4 1 7 548911 Nut 5 16 18 3 8 800290 Nut cen...

Page 32: ...12 8 LAWNAIRE V HANDLE GROUP 30 REF TINE COVER 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 17 18 9 8 12 17 26 27 28...

Page 33: ...77 Washer Flat 41 64 1 14 548905 Screw 3 8 16 x 1 1 15 800073 Bolt carriage 3 8 16 x 1 1 4 1 16 800557 Bolt carriage 5 16 18 x 3 4 1 17 800697 Nut crownlock 5 16 18 3 18 800698 Nut crownlock 3 8 16 2...

Page 34: ...12 9 LAWNAIRE V FRAME GROUP 32 29 22 21 2 23 3 28 22 18 12 13 5 14 19 20 20 17 16 24 24 16 17 13 6 1 1 25 26 15 4 22 27 7 11 10 9 8...

Page 35: ...ght 1 11 2703759 2 Link assembly upper right 1 12 306367 Key woodruff 3 16 x 3 4 2 13 308091 Washer flat 1 2 x 1 1 16 x 3 32 2 14 521609 Pulley driven 10 1 15 521679 Bushing 2 16 521856 Bearing ball 2...

Page 36: ...ARDWARE SO THAT SPRING WILL NOT COME OFF WHEN CABLE IS LOOSE 32 33 34 39 1 2 3 4 1 5 6 7 18 19 20 21 22 23 23 23 24 23 25 26 27 28 29 29 29 30 31 32 32 32 32 33 33 34 35 36 37 38 40 10 11 12 12 9 14 1...

Page 37: ...2 Cover chain 1 19 4114111 Spring torsion 2 20 4114319 Belt kevlar 1 21 4114608 Bushing shoulder 390 ID X 71 2 22 521608 Pulley 4 inch 1 23 522516 Mount isolation 6 24 523898 Spring extension 1 25 548...

Page 38: ...Caution Lock Handle 1 3 4112442 Decal Lawnaire IV Stripe 1 4 4115768 Decal Throttle 1 5 4115773 Decal Ryan Stripe 1 6 521787 Decal Engine Oil Check 1 7 835892 Decal Danger Hands and Feet 1 8 840697 D...

Page 39: ...7 1 2703117 Decal Operator Instructions 1 2 4112522 Decal LawnAire V Stripe 1 3 4115768 Decal Throttle 1 4 4115773 Decal Ryan Stripe 1 5 521787 Decal Engine Oil Check 1 6 835892 Decal Danger Hands an...

Page 40: ...V Decals 37 Drum Group 26 27 Frame Group 32 33 Handle Group 30 31 Main Group 34 35 Tine Wheel Group 28 29 S Service 12 Touch Up Paint 12 Page Setup Checking Clutch Cable 6 Checking Throttle Cable 6 In...

Page 41: ...3 2703757 2 23 33 2703758 2 23 33 2703759 2 23 33 2703785 27 306367 33 306501 35 306981 35 4109022 36 4109880 2 35 4112442 36 4112522 37 4113746 35 4113841 35 4113972 2 35 4114111 35 4114319 35 411460...

Page 42: ...ized accessory that has been subject to misuse neglect negligence or accident or that has been operated or maintained in any way contrary to the operating or maintenance instructions as specified in t...

Page 43: ...drive Periodic checking or adding of lubricant to the unit or service check up tune up or diagnosis Expense of delivering the unit to the dealer and expense of returning the unit back to the owner me...

Page 44: ...ontient des prouits chimiques que l Etat de Californie consid re tre canc rig nes provoquer des d fauts cong nitaux et d autres dangers en mati re de reproduction Advertissement El estado de Californi...

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