Textron 544909B Technical Manual

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TECHNICAL MANUAL

Safety, Operation, Parts, Maintenance, Service

Models:

544908A LAWNAIRE IV 4HP HONDA

544909B LAWNAIRE IV 6HP BRIGGS & STRATTON

544910A LAWNAIRE V 4HP HONDA

544911B LAWNAIRE V 6HP BRIGGS & STRATTON

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.

4110520 REV D

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Summary of Contents for Textron 544909B

Page 1 Safety, Operation, Parts, Maintenance, Service Models: 544908A LAWNAIRE IV 4HP HONDA 544909B LAWNAIRE IV 6HP BRIGGS & STRATTON 544910A LAWNAIRE V 4HP HONDA 544911B LAWNAIRE V 6HP BRIGGS & STRATTON WARNING: If incorrectly used this machine can cause severe injury. Those who...
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.
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: Safety And Operation Decals
SAFETY AND OPERATION DECALS Lawnaire IV & V Danger Hands And Feet Operating Instructions This decal is located on the main frame and informs the This decal can be found on top of the handlebar operator of areas which are capable of serious injury. assembly.
Page 6: Assembly/Set-Up Instructions
ASSEMBLY/SET-UP INSTRUCTIONS Lawnaire IV & V GENERAL NOTE: FRONT, REAR, RIGHT HAND AND LEFT HAND REFERENCES BELOW ARE WITH RESPECT TO AN OPERATOR AT THE CONTROLS. UNPACKING Unpacking the aerator entails securing the handle and rolling the unit off the shipping pallet. 1.
Page 7 ASSEMBLY/SET-UP INSTRUCTIONS Lawnaire IV & V FOR LAWNAIRE IV MODELS 1. Flip the handle locking knobs D up into position over the handle bracket E and tighten. HAND TIGHTEN ONLY!. 2. Pull up on the transport lift handle C to raise the aerator to the transport position.
Page 8 ASSEMBLY/SET-UP INSTRUCTIONS Lawnaire IV & V CHECKING THE THROTTLE CABLE- The throttle cable is adjusted prior to shipping; however, it should be checked before the unit is put into service. The throttle control should freely move in a full range of motion forward and backward.
Page 9: Handle Controls
CONTROLS Lawnaire IV & V HANDLE CONTROLS Transport Lift Handle A - Pushing down on the handle lowers the tines for aerating. Pulling the handle up raises the tines so the aerator can be moved or transported without incurring damage to the unit or the turf.
Page 10: Engine Controls
CONTROLS Lawnaire IV & V ENGINE CONTROLS The Lawnaire IV & V are available with either a 6 HP Briggs & Stratton engine or a 4 HP Honda engine. Briggs & Stratton Engine Controls The engine is equipped with an On/Off control A, a choke control B and fuel shut-off valve C.
Page 11: Pre-Operation Check
OPERATION Lawnaire IV & V PRE-OPERATION CHECK • NEVER start or run the engine inside where 1. Visually check all moving parts and all fasteners. exhaust fumes can collect. Carbon monoxide If loose or broken, tighten or replace. Check for present in the exhaust is an odorless and deadly broken or bent tines;...
Page 12 OPERATION Lawnaire IV & V AERATING NOTE: For best performance and maximum tine penetration, the lawn should be thoroughly watered the day before aeration. 1. Rotate the water drum on the front of the unit until the filler plug F is positioned at the top. Remove the plug, fill the drum with water and replace the plug.
Page 13: Service
SERVICE Lawnaire IV & V SERVICE When replacement parts are required, use genuine RYAN parts or parts with equivalent characteristics, including type, strength and material. Failure to do so may result in product malfunction and possible injury to the operator and/or bystanders. Any warning decal that becomes illegible should be replaced immediately.
Page 14: Storage
STORAGE Lawnaire IV & V STORAGE INSTRUCTIONS To prevent possible explosion or ignition of To put the equipment into service after an vaporized fuel, do not store equipment with fuel in extended period of storage: tank or carburetor in enclosure with open flame (for 1.
Page 15: Transporting
TRANSPORTING Lawnaire IV & V TRANSPORTING If a tote trailer will be used to transport the unit, the two cast weights must be removed from the aerator frame and a locking shaft installed in their place. Removing the cast weights and draining the water drum will decrease the weight for easier loading on a vehicle or trailer.
Page 16: Specifications
SPECIFICATIONS Lawnaire IV & V LAWNAIRE IV LAWNAIRE V Dimensions: Dimensions: Width.......... 28" (711 mm) Width.......... 35.5" (902 mm) Length......... 51" (1295 mm) Length......... 52.5" (1334 mm) Length (handle folded)....46" (1168 mm) Length (handle folded)....46" (1168 mm) Height (transport)....... 47.5"...
Page 17: Parts Section
PARTS SECTION Lawnaire IV & V PARTS SECTION...
Page 18: Frame Group
FRAME GROUP Lawnaire IV & V FIGURE 1...
Page 19 FRAME GROUP Lawnaire IV & V FIGURE 1 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 304636 COTTER PIN, 12 x 1.12 YS 64262-018 BLT-FLG HD 3/8-16X1-3/4 2702738 SHAFT, JACK LA4 2702877.7 FRAME, TRANSPORT LA4 (ITEMS 3 & 4 USED ON LAWNAIRE IV ONLY) 841261 SPROCKET, 16T, 1/2P 2703341.7...
Page 20: Main Group-Lawnaire Iv
MAIN GROUP-LAWNAIRE IV Lawnaire IV & V FIGURE 2...
Page 21 MAIN GROUP LAWNAIRE IV Lawnaire IV & V FIGURE 2 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 64163-29 WASHER-21/64 X 1 X 11GA 5 304636 COTTER PIN, 12 x 1.12 4124192 WHEEL, 8X2.5 SEMI-PNEUM2 2703148 WEIGHT, LAWNAIRE 4117195 CABLE, CLUTCH 2703444 COVER, DRIVE LA4 2703445...
Page 22 MAIN GROUP-LAWNAIRE V Lawnaire IV & V FIGURE 3...
Page 23: Main Group-Lawnaire V
MAIN GROUP-LAWNAIRE V Lawnaire IV & V FIGURE 3 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 64163-29 WASHER-21/64 X 1 X 11GA 6 304636 COTTER PIN, 12 x 1.12 4124192 WHEEL, 8X2.5 SEMI-PNEUM2 2703026 AXLE, TRANSPORT WHEEL 2 2703148 WEIGHT, LAWNAIRE 4117195 CABLE, CLUTCH...
Page 24: Handle Group
HANDLE GROUP Lawnaire IV & V FIGURE 4...
Page 25 HANDLE GROUP Lawnaire IV & V FIGURE 4 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 103867 WSHR,.31.69.06 YS FLT 4138396 S-LA4 HANDLE W/DECALS 1 2703059.7 HANDLE, HGHT ADJ. LA IV 1 (ITEMS 3 & 4 USED ON LAWNAIRE IV ONLY) 2703067.7 TUBE, CONTROL LA IV &...
Page 26: Tine Wheel Group
TINE WHEEL GROUP Lawnaire IV & V FIGURE 5...
Page 27 TINE WHEEL GROUP Lawnaire IV & V FIGURE 5 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 2702742.7 TINE WHEEL AY, LA4 (ITEM 1 USED ON LAWNAIRE IV ONLY) 2703160 SPROCKET, 42T.50P 2703508 FLANGE, BEARING 2.04 I.D. 4 522361 TINE, CORING 3/4 (QTY 30 USED ON LAWNAIRE IV) (QTY 42 USED ON LAWNAIRE V) 545786...
Page 28: Drum Group
DRUM GROUP Lawnaire IV & V FIGURE 6...
Page 29 DRUM GROUP Lawnaire IV & V FIGURE 6 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 2702741.7 PLATE, FLANGE 2703102.7 DRIVE AY, LA4 DRUM (ITEM 2 USED ON LAWNAIRE IV ONLY) 2703157 SPROCKET, 30T .50P 2703508 FLANGE, BEARING 2.04 I.D. 4 2703783 DRUM, WATER LA4 (ITEM 5 USED ON LAWNAIRE IV ONLY)
Page 30 DECAL GROUP-LAWNAIRE IV Lawnaire IV & V FIGURE 7...
Page 31: Decal Group-Lawnaire Iv
DECAL GROUP-LAWNAIRE IV Lawnaire IV & V FIGURE 7 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 2703117 DECAL, OP INSTR LA IV & V 1 4109022 DECAL, CAUT LOCK HNDLE 1 4124273 LABEL-DRIVE COVER LAIV 1 4115768 DECAL, HAND THROTTLE 4124276 LABEL-TINE COVER RYAN 1 521787...
Page 32 DECAL GROUP-LAWNAIRE V Lawnaire IV & V FIGURE 8...
Page 33: Decal Group-Lawnaire V
DECAL GROUP-LAWNAIRE V Lawnaire IV & V FIGURE 8 ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 2703117 DECAL, OP INSTR LA IV & V 1 4124275 LABEL-DRIVE COVER LAV 1 4115768 DECAL, HAND THROTTLE 4124276 LABEL-TINE COVER RYAN 1 521787 DECAL,WARNING 835892...
Page 34 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.

This manual is also suitable for:

Jacobsen ryan lawnaire v 544908a Jacobsen ryan lawnaire iv 544910a 544911b