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TECHNICAL MANUAL
Safety, Operation, Parts & Service
Models:
544859
LAWNAIRE (3-POINT HITCH 36")
544860
LAWNAIRE (TOW BEHIND)
544876
LAWNAIRE (3-POINT HITCH 48")
WARNING: If incorrectly used this machine can cause severe injury. Those who
use and maintain this machine should be trained in its proper use, warned of its
dangers and should read the entire manual before attempting to set up, operate,
adjust or service the machine.
521894 REV 08
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Table of Contents
Summary of Contents for Textron JACOBSEN RYAN LAWNAIRE 544859
- Page 1 TECHNICAL MANUAL Safety, Operation, Parts & Service Models: 544859 LAWNAIRE (3-POINT HITCH 36”) 544860 LAWNAIRE (TOW BEHIND) 544876 LAWNAIRE (3-POINT HITCH 48”) WARNING: If incorrectly used this machine can cause severe injury. Those who use and maintain this machine should be trained in its proper use, warned of its dangers and should read the entire manual before attempting to set up, operate, adjust or service the machine.
- Page 2 CALIFORNIA WARNING Proposition 65 Warning The engine exhaust from this product Diesel engine exhaust and some of contains chemicals known to the State its constituents are known to the State of California to cause cancer, birth of California to cause cancer, birth defects or other reproductive harm.
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Page 3: Table Of Contents
Ryan designs and builds its equipment to serve many years in a safe and productive manner. For longest life, use this machine only as directed in the manual, keep it in good repair and follow safety warnings and instructions. You'll always be glad you did. Jacobsen, a Textron Company One Bob Cat Lane Johnson Creek, WI 53038-0469... -
Page 4: Safety
Your safety and the safety of others is involved. Jacobsen, A Textron Company strongly warns Signal word definitions against, rejects and disclaims any modifications, add-on accessories or product alterations that are... -
Page 5: Set-Up
SET-UP LAWNAIRE SET-UP MODEL 544859, 3-POINT HITCH 36" MODEL 544876, 3-POINT HITCH 48" Banding is under tension and may snap back when cut. Wear eye protection and stay clear when cutting the band. Use caution when installing the knives and tines. - Page 6 SET-UP LAWNAIRE SET-UP MODEL 544860, TOW BEHIND Banding is under tension and may snap back when cut. Wear eye protection and stay clear when cutting the band. DO NOT use tractor hydraulics to hold up aerator for servicing. Hydraulic lines may rupture causing the unit to fall suddenly.
- Page 7 SETUP LAWNAIRE HYDRAULIC LIFT ACCESSORY PART NO. 545711 Escaping hydraulic oil under pressure can have sufficient force to penetrate the skin, causing serious injury. If a leak is suspected, use a piece of cardboard or wood, not your hands, to check for leaks. If injured by escaping fluid, see a doctor at once.
- Page 8 SETUP LAWNAIRE NOTE: The operator is responsible for acquiring the proper hoses and/or fittings that attach the hydraulic cylinder to the tractor directly to the cylinder, or the operator may install hydraulic fittings onto the cylinder. For proper connection to the cylinder, use hoses or fittings with a 3/8-18 NPT.
- Page 9 SETUP LAWNAIRE MANUAL LIFT ACCESSORY PART NO. 545654 (For Tow Behind Lawnaire Model 544860) 1. Remove the (2) 3/8-16 X 1-1/2" screws, securing the rear part of the cover to frame arm, on right side of aerator. Retain hardware for later use. 2.
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Page 10: Operation
OPERATION LAWNAIRE MODEL 544859, 3-POINT HITCH 36" MODEL 544876, 3-POINT HITCH 48" Before operating the aerator, check area to be aerated, and remove any objects which may present a safety hazard or damage the aerator (rocks, cans, etc.) To prevent injury, do not operate aerator without cover in place. Do not make adjustments or perform any maintenance while tractor engine is running. - Page 11 OPERATION LAWNAIRE AERATING LAWNAIRE MODEL 544860 This unit is not designed nor meant to be towed at speeds in excess of 10 MPH (16 Km/h). Towing at excessive speeds will cause damage to frame and/or wheels. This type of damage will not be repaired under the terms of the warranty.
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Page 12: Service
SERVICE LAWNAIRE DO NOT use tractor hydraulics to support the aerator while servicing. Hydraulic lines may rupture causing unit to fall suddenly. When replacement parts are required, use genuine Ryan parts or parts with equivalant characteristics including type, strength and material. Failure to do so may result in product malfunction and possible injury to the operator and/or bystanders. - Page 13 SERVICE LAWNAIRE STORAGE INSTRUCTIONS Thoroughly clean all tines, inside and out, after aerating is completed. A light coating of oil sprayed onto the tines or blades will help prevent rust and ensure proper coring the next time the unit is put into service. Unit should be stored on boards to protect tines or blades from rust and damage.
- Page 14 SERVICE LAWNAIRE TINE WHEEL REPLACEMENT MODEL 544860 1. Attach aerator to tractor for stability. 2. Raise unit and place jackstands under each frame arm and lower aerator, keeping the transport wheels and the tine wheels off the floor. 3. If aerator has the hydraulic lift accessory, disconnect the hydraulic cylinder from the wheel leg assembly. 4.
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Page 15: Specifications
SPECIFICATIONS LAWNAIRE SPECIFICATIONS Hitch: Aerating Depth: Model 544859: Mounted; 3-point hitch Model 544876: 3-point hitch category "1" Up to 5" (127 mm), depending on soil Model 544860: Tow Behind; pin and clevis conditions. hitch. Model 544876: Up to 4" (102 mm) Lubrication: Aerating Pattern: Pressure fittings. -
Page 16: Accessories
ACCESSORIES LAWNAIRE 515196 - 1/2" Coring Tine 522361 - 3/4" Coring Tine, Thin Wall 515197 - 3/4" Coring Tine, Thick Wall These tines are for use with aeration programs in the Spring and Fall. Soil cores up to 4" (102mm) in length can be removed with minimal surface disturbance. -
Page 17: Parts Section
PARTS SECTION LAWNAIRE PARTS SECTION... -
Page 18: Hydraulic Lift Accessory
HYDRAULIC LIFT ACCESSORY LAWNAIRE FIGURE 1... - Page 19 HYDRAULIC LIFT ACCESSORY LAWNAIRE FIGURE 1 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 120177 LOCKWASHER 3/8 301431 SCREW-3/8-16 X 2-1/2 303269 LOCKWASHER-7/16 304364 NUT-7/16-14 306562 NUT-3/8-16 306838 SCREW-7/16-14 X 1 311213 SCREW-3/8-16 X 3 521905 SUPPORT-HOSE 522090 BRKT-CYLINDER MOUNT 1-10 545649 PIVOT-CYLINDER...
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Page 20: Manual Lift Accessory
MANUAL LIFT ACCESSORY LAWNAIRE FIGURE 2... - Page 21 MANUAL LIFT ACCESSORY LAWNAIRE FIGURE 2 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 120177 LOCKWASHER-3/8 301431 SCREW-3/8-16 X 2-1/2 306562 NUT-3/8-16 307976 PIN-COTTER 5/32 X 1-1/4 521880 SPRING 521892 HANDLE-LIFT 521918 PIN-RETAINING 545650 PIN-LOCK 2-9 * 545655 STOP-LEFT 2-10 545675 STOP-RIGHT 2-11...
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Page 22: Model No. 544859
MODEL NO. 544859 LAWNAIRE FIGURE 3... - Page 23 MODEL NO. 544859 LAWNAIRE FIGURE 3 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 120177 LOCKWASHER-3/8 3-38 515184 BUSHING 301431 SCREW-3/8-16 X 2-1/2 3-39 521814 SPACER 302600 SCREW-3/8-16 X 1-1/2 303269 LOCKWASHER-7/16 3-40 547714 COVER-ASSY 304364 NUT-7/16-14 (INCLUDES ITEM 41) 306414 SCREW-3/8-16 X 1 306562...
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Page 24: Model No. 544876
MODEL NO. 544876 LAWNAIRE FIGURE 4... - Page 25 MODEL NO. 544876 LAWNAIRE FIGURE 4 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 120177 LOCKWASHER-3/8 4-37 548256 SEAL-OIL 301431 SCREW-3/8-16 X 2-1/2 4-38 548804 NUT-3/8-16 FLANGELOCK 128 302600 SCREW-3/8-16 X 1-1/2 4-39 822529 PIN-HAIR 303269 LOCKWASHER-7/16 4-40 827172 PIN-PIVOT 304364 NUT-7/16-14 4-41...
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Page 26: Model No. 544860
MODEL NO. 544860 LAWNAIRE FIGURE 5... - Page 27 MODEL NO. 544860 LAWNAIRE FIGURE 5 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 120177 LOCKWASHER-3/8 5-38 64123-130 BLT-HEX 3/8-16X5-1/2 302600 SCREW-3/8-16 X 1-1/2 5-39 548804 NUT-3/8-16 FLANGELOCK 303269 LOCKWASHER-7/16 5-40 835892 DECAL-DANGER HANDS 304364 NUT-7/16-14 5-41 64229-03 LOCKNUT-NYLON 3/8-16 306562 NUT-3/8-16 5-42...
- Page 28 Equipment from Jacobsen, a Textron company, is built to exacting standards ensured by ISO 9001 and ISO 14001 registration at all our manufacturing locations. A worldwide dealer network and factory-trained technicians backed by Textron Parts Xpress provide reliable, high-quality product support.
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