AJ805E Electric Lawn Scarifier + Dethatcher Sun Joe® AJ805E Electric Lawn Scarifier + Dethatcher | Product Guide ☀️ Sun Joe® Product Guide15-Inch Raking Width 13-Amp Motor 2-Year WarrantyLet Your Lawn Breathe.The Sun Joe® AJ805E Electric Lawn Scarifier + Dethatcher helps remove thatch buildup and refresh small to mid-sized lawns. Powered by a 13-amp motor, it rakes a 15-inch wide path and includes both a scarifying cylinder and dethatcher cylinder for two lawn-care tasks in one machine.⚡ 13-Amp Electric Motor 🌱 Scarifier + Dethatcher 🚫 No Gas, Oil, or Tune-UpsMeet the AJ805E Key Components🤲Upper handle frame — main grip and control handle🔩Handle knobs + bolts — secure the upper, middle, and lower handle sections🧰Middle handle bars — connect the upper and lower handle assembly🧰Lower handle bars — attach to the adjusting gear wheels on the body⬆️Ejector flap — covers the rear discharge opening and collection bag area🌿Scarifying cylinder — pre-assembled cylinder with slicing blades🍂Dethatcher cylinder — spring tine cylinder for raking and thatch removal🔧Hex key wrench — used when changing the cutting cylinder⚙️Depth adjustment lever — changes the raking or scarifying depth🧺Thatch collection bag — collects removed thatch and debris🔌Extension cord restraint holder — helps secure the extension cord during use▶️Safety lock button + switch lever — required to start the unitTechnical SpecificationsSpecificationAJ805EProduct TypeElectric lawn scarifier + dethatcherRated Voltage120V ~ 60 HzMotor13 ampNo Load Speed3000 rpmMaximum Raking Width15 in. / 38 cmScarifying Depth-0.4 in. to 0 in. / -10 mm to 0 mmRaking Depth0 in. to 0.4 in. / 0 mm to 10 mmDepth Adjustment5 positionsThatch Bag Capacity13.2 gal / 50 LDethatcher Cylinder24 spring steel raking tines, 1.5 mm thick and 1.2 in. / 30 mm longScarifier Cylinder26 slicing blades, 5.1 in. / 130 mm longWheel Size8 in. front wheels / 4 in. rear wheelsProduct Dimensions34.4 in. x 24.2 in. x 46 in.Net Weight23.4 lbs / 10.6 kgWhat's in the BoxIncluded ItemAJ805EScarifier + dethatcher body✔Handle knobs✔ 6Bolts✔ 4Adjusting gear wheels✔ 2Upper handle frame✔Middle handle bars✔ 2Lower handle bars✔ 2Thatch collection bag✔Cable clip✔Hex key wrench✔Scarifying cylinder✔ pre-assembledDethatcher cylinder✔Operator's manual✔💡 If any parts are missing or damaged, do not use the unit. Contact Shop Joe customer support before operation.Assembly🚫 Do not connect the scarifier + dethatcher to power until assembly is complete. Accidental starting can cause serious injury.⚙️Step 1Insert the lower handle bars into the adjusting gear wheels.›🔩Step 2Align the holes and secure the lower handle bars with the knobs.›🧰Step 3Attach the middle handle bars to the lower handle bars.›🤲Step 4Attach the upper handle frame and tighten both sides securely.›🧷Step 5Secure the cord with the cable clips.⚠️ Assembly check: Make sure all knobs, bolts, and handle connections are tight before connecting the unit to power.Getting StartedInspect the lawn firstRemove stones, sticks, wire, bones, and other objects that could be thrown or damage the unit.Attach the thatch collection bagLift the ejector flap and hang the collection bag on the mounting hooks before operation.Set the cutting depthPull the depth adjustment lever away from the wheel, then move it forward or backward to select one of the five depth settings. Connect the power cordUse the extension cord restraint holder and plug the appliance cord into a proper outdoor extension cord.Start the unitPress and hold the safety lock button, then pull the switch lever toward you. Release the safety lock button once the unit starts. Work in overlapping rowsPush the machine forward slowly in straight, slightly overlapping rows for even coverage.Stop the unitRelease the switch lever and wait for the cylinder to stop completely before lifting, tilting, or servicing the unit.Depth SettingUse10 mmFor pushing the machine and removing thin thatch layers. Do not use for scarifying.5 mmFor raking healthy lawn. Do not use for scarifying.0 mmFor transport, storage, scarifying, and raking.-5 mmFor scarifying. Not recommended for raking.-10 mmFor scarifying only. Do not use for raking.🔌 Extension cord guidance: Use a 14-gauge 50-foot extension cord. For 50–100 feet, use a 12-gauge extension cord.⚠️ Important: Do not operate on wet grass. Wet clippings can stick to the underside, block discharge, cause overheating, and increase slipping risk.Maintenance & Care🚫 Always disconnect the unit from power before cleaning, inspection, maintenance, storage, or transport.1Keep fasteners tightCheck nuts, bolts, knobs, and screws regularly so the unit remains in safe working condition.2Clean the cylinder area after each useGrass clippings can accumulate around the cylinder and cause overheating. Remove clippings after every use.3Keep air vents clearBlocked vents can reduce performance and cause overheating. Clean vents with a soft brush when needed.4Inspect the collection bagCheck the thatch collection bag for wear or deterioration before use. Let it dry fully before storing.5Clean with a brush or cloth onlyDo not use water, solvents, or polishes to clean the machine.6Store in a dry placeAllow the unit to cool before storage. Do not place other objects on top of the unit while stored.Troubleshooting GuideOnly perform the steps described below. If the issue cannot be resolved, contact an authorized service center or Shop Joe customer support.🔴 Motor Does Not StartPossible CausesUnit is not connected to powerPower cord or plug is defectiveOther electrical defectSafety lock button was not pressedMachine overheatedSolutionsConnect the unit to a power supplyPress the safety lock button first, then pull the switch leverClean grass clippings around the cylinderAllow the machine to cool before restartingContact an authorized service agent for cord, plug, or electrical defects🟡 Product Is Not Powering OnPossible CauseWrong extension cord is being usedSolutionUse a 14-gauge 50-foot extension cordFor 50–100 feet, use a 12-gauge extension cord🟡 Product Does Not Reach Full PowerPossible CausesExtension cord is not suitable for this productAir vents are blockedSolutionsUse a proper outdoor extension cordClean the air vents with a soft brush🟡 Unsatisfying ResultsPossible CausesCutting device is wornScarified material exceeds machine capacityScarifying depth is incorrectSolutionsReplace the tine cylinder if wornOnly scarify material within the machine’s capacityAdjust the depth setting🟡 Not Performing as ExpectedPossible CauseMachine is cloggedSolutionUnplug the unitRemove dead grass from the tinesConfirm there are no clogs preventing normal operation🟡 Excessive VibrationPossible CausesCutting device is unbalancedCutting device has been damaged by impactSolutionsSwitch off and unplug the unit immediatelyInspect the cutting device for damageReplace or have the cutting device repaired before reuseVideo GuideFrequently Asked QuestionsWhat is the difference between scarifying and dethatching?Scarifying uses the blade cylinder to scratch through and between the grass, helping aerate the soil surface. Dethatching uses the spring tine cylinder to rake the lawn surface and lift thatch and light debris.How often should I dethatch or rake my lawn?The manual recommends raking or aerating every 4–6 weeks depending on the condition of the lawn.When is the best time to scarify?Scarify during spring between April and May when the lawn can recover more easily. If the summer is wet, scarify again in late summer with a decreased depth setting. Do not scarify during periods of hot weather.Can I use the AJ805E on wet grass?No. The manual advises not to use the machine on wet grass because wet material can stick to the underside, block discharge, overload the motor, and increase the risk of slipping.Is the AJ805E for commercial use?No. The AJ805E is intended for private domestic use only and should not be used for commercial trade use.What replacement accessories are available?Compatible optional accessories listed for this model include:AJ805E-DTNS — replacement dethatcher tinesAJ805E-SCRF — replacement scarifier bladePJEXT50-B — Snow Joe® + Sun Joe® SJTW-A 14-gauge 50-foot extension cord with lighted end