Operator’s Guide MODEL 424 - FEATURES AND CONTROLS Figure 1...
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Operator’s Guide MODEL 530A - FEATURES AND CONTROLS Clutch Control Rear Wheel Control Handle Depth/Stability Control Knob Folding Handle Drive Guard Locking Cam Handle Stops Engine Guard Removable Removable Weight Weight Adjustable Powered Rear Wheel Front Wheel Note: Serial number is located on the rear of the housing. Figure 2...
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Operator’s Guide MODEL 742 - FEATURES AND CONTROLS Figure 3...
Operator’s Guide SAFETY PROCEDURES GENERAL INFORMATION This manual will assist you in the safe operation and proper maintenance of your Husqvarna equipment. Read it thoroughly before attempting • Read all maintenance and service instructions to operate the machine. Call your dealer or before attempting work.
SAFETY AND INSTRUCTION DECALS The following decals are found on Model 424,530 and 742 aerators. If any are missing or not legible, replace them before operating aerator. 8343 Decal kit, Model 424 7630 Decal kit, Model 530A 7404 Decal kit, Model 742 A - Model 424 only (1 EA) C - Model 742 only (1 EA) B - Model 530A only (1 EA)
DECAL PLACEMENT - MODELS 424, 530A AND 742 Throttle Cable (Model 742 with Honda only) H (on deck F (on back behind of housing engine) over tine rotor) K (for Models 424 & 742 logo only) E (for Model 742) A (for Model 424) B (for Model 530) C (for Model 742)
Operator’s Guide ASSEMBLY INSTRUCTIONS 3. AR25 Lawn Aerator is shipped with the handle detached. Mount the handle using 2 each ½” Model 424 wrenches. 1. Remove wooden blocks. Note: Watch for nails (A) Slide handle onto handle mounting and wood splinters. Wear eye protection. brackets (see Figure 4).
Operating Instructions AERATION TIPS Should I water before aerating? 6. Test clutch handle to insure clutch releases freely. Best aerating condition is a soft and moist 7. The engine top speed is preset by the engine ground. If you are unsure of the ground manufacturer.
Operating Instructions THROTTLE CABLE ADJUSTMENT. Model 742 (Honda Engine Only) 1. Start engine and allow it to reach operating NOTE: A properly adjusted throttle will slightly temperature. increase engine speed as the clutch engages. 2. Adjust the throttle cable at the adjuster •...
Operating Instructions OPERATING ON HILLS NOTE: Adjusting for greater stability will shorten the length of the cores you pull. You will gain greater side-to-side stability (see below “Operating on Hills.” Adjustments for greater WARNING! stability will also improve maneuverability during DO NOT operate on hills exceeding 35% aeration.) grade.
When operating on hills you should consider the following: MODEL 424 The BlueBird 424 Aerator has three convenient (A) Operate the machine up and down the features to assist you in transporting the unit in hills rather than across them.
Maintenance and Service Instructions CLEANING AND WASHING Regular cleaning, washing and lubricating will STORAGE prolong the service of your machine. 1. Refer to engine manufacturers instructions for engine storage information. NOTE: Use care with power washers to avoid 2 Clean machine. damage to Warning Decals, Operator Instruction 3.
Maintenance and Service Instructions TINE WEAR Drive Belt Replacement and Adjustment After your BlueBird Aerator has been used for sometime, the tines will wear. When this 1. Turn off engine and remove the drive guard happens their aerating performance will cover.
Maintenance and Service Instructions Clutch Cable Removal and Replacement 4. Attach the new adjuster bracket to the spring on the throttle/clutch lever. 1. Turn off engine and remove old clutch cable. NOTE: As the cable length increases between 2. Route new cable through the hole at the rear the cable screw and adjuster nut the of housing.
Maintenance and Service Instructions HANDLE - MODEL 424 and 530A ONLY Inspection 1. The handle cam lock must lock shut under moderately heavy hand pressure. Handle frame should be tightly secured to the aerator body. 2. Check the cam rod lock nut. If it turns freely by hand when cam is released, the locking strength of the nut has been relieved and the nut must be replaced to maintain the security...
Maintenance and Service Instructions collar so that it rotates in the opposite 4. Remove the hairpin cotter pin. (see Figure 16) direction the wheel would normally turn. If 5. Slide the wheel assembly off the machine. bearings are rusted in place they will have to (see Figure 16) be replaced along with the wheel and shaft.
Maintenance and Service Instructions 8. Remove the tine rotor shaft bearing bolts (4). Free-Wheeling Tine Assembly Removal and 9. Remove chain scaper bolts (2) and chain Replacement scraper (on Model 424 only). Complete steps 1 through 12 in previous section, then proceed with the following: 10.
One Year Limited Warranty For one year from purchase, BlueBird willreplace for the original purchaser, free of charge, andy part or parts, found upon examination by any Factory authorized Service Center, or by the Factory at Beatrice, Nebraska, to be defective in material or workmanship or both.
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