{"product_id":"liftmaster-ma009","title":"LiftMaster MA009 Motor Pulley — Mega Arm Barrier Operator Service Part","description":"\u003cp\u003e\u003cstrong\u003eThe LiftMaster MA009 is the motor pulley identified in the Mega Arm and Mega Arm Tower manufacturer parts breakdown. It works on the motor side of the belt drive and is separate from the reducer pulley MA008 and the drive belt MA007. Match the pulley to the exact barrier model, installed motor and service drawing before ordering. This is a mechanical replacement part, not a motor kit or an approved way to change the barrier arm’s operating speed.\u003c\/strong\u003e\u003c\/p\u003e\u003ch2\u003eCompatibility — Models, Versions and Exclusions\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel or selection point\u003c\/th\u003e\n\u003cth\u003eCompatibility requirement\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDocumented Mega Arm \/ Mega Arm Tower mechanism\u003c\/td\u003e\n\u003ctd\u003eManufacturer parts list identifies MA009 on the motor side of the drive.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSprint or other barrier variants\u003c\/td\u003e\n\u003ctd\u003eConfirm the exact variant drawing before selecting pulley and belt components.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMA008 reducer pulley\u003c\/td\u003e\n\u003ctd\u003eDifferent position and service reference; not the same component.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMA003 motor\u003c\/td\u003e\n\u003ctd\u003eA separate service item; the pulley offer does not promise a replacement motor.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOther same-diameter pulleys\u003c\/td\u003e\n\u003ctd\u003eDiameter alone does not establish shaft fit, belt profile or retention compatibility.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eInspect the Belt Drive Before Replacing a Pulley\u003c\/h2\u003e\u003cp\u003eA worn pulley can be associated with belt wear, loose retention or incorrect alignment. Have the technician inspect both pulley positions, the belt and the motor and reducer shafts. A replacement pulley should engage the correct shaft and belt profile without improvised spacers or changes to the documented drive layout.\u003c\/p\u003e\u003cp\u003eThe barrier arm and mechanism also need to move as intended. Do not compensate for an overloaded or incorrectly balanced arm by changing pulley size or tightening the belt beyond the prescribed adjustment. Diagnose abnormal noise or inconsistent travel across the whole drive, then restore the manufacturer’s specified components and test the complete operating cycle.\u003c\/p\u003e\u003ch2\u003eSpecifications and Product Identification\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart number\u003c\/td\u003e\n\u003ctd\u003eMA009\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eComponent\u003c\/td\u003e\n\u003ctd\u003eMotor pulley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDocumented application\u003c\/td\u003e\n\u003ctd\u003eMega Arm \/ Mega Arm Tower drive arrangement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeparate reducer pulley\u003c\/td\u003e\n\u003ctd\u003eMA008\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeparate drive belt\u003c\/td\u003e\n\u003ctd\u003eMA007\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSelection basis\u003c\/td\u003e\n\u003ctd\u003eExact operator drawing and installed motor-shaft arrangement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eBefore Ordering\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRecord the barrier model and identify MA009 in its parts drawing.\u003c\/li\u003e\n\u003cli\u003eConfirm the installed motor and shaft connection.\u003c\/li\u003e\n\u003cli\u003eInspect belt condition, reducer pulley, alignment and retention hardware.\u003c\/li\u003e\n\u003cli\u003eDetermine whether the repair also needs a belt or another drive component.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePackage Contents and Separate Requirements\u003c\/h2\u003e\u003cp\u003eThis offer identifies the MA009 motor pulley. The motor, drive belt, reducer pulley, gearbox and barrier arm are separate components unless explicitly included by the supplier. Confirm the current package for any key or retaining pieces. Do not interpret the complete drive shown in a parts illustration as the contents of a single pulley order.\u003c\/p\u003e\u003ch2 class=\"safety-warning\"\u003eSafety Warnings — Read Before Installation or Service\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eWARNING: A moving barrier arm and exposed belt drive can cause serious injury. Use a qualified gate technician and secure the arm before service.\u003c\/li\u003e\n\u003cli\u003eDisconnect AC and battery power as directed. Prevent vehicles and pedestrians from entering the service area while guards are removed.\u003c\/li\u003e\n\u003cli\u003eDo not alter pulley size or drive geometry as an improvised speed conversion. Preserve the manufacturer’s specified belt adjustment and component arrangement.\u003c\/li\u003e\n\u003cli\u003eRestore guards and verify travel, arm behavior and all prescribed protection tests before reopening the lane.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eRelated Products and Important Differences\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/garage-doorparts.com\/products\/liftmaster-lmrrul-monitored-retro-reflective-photo-eye\"\u003eLMRRUL monitored photo eye\u003c\/a\u003e — a separate protection option only where the exact operator and control revision approve it; not a universal legacy retrofit.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/garage-doorparts.com\/products\/liftmaster-lmwekitu-monitored-wireless-edge-kit-for-gate-operators\"\u003eLMWEKITU monitored wireless edge kit\u003c\/a\u003e — a separate edge communication system for approved controls and resistive edges; not a replacement for this mechanical or electrical service part.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eIs MA009 the large reducer pulley?\u003c\/h3\u003e\u003cp\u003eNo. The reducer pulley is identified separately as MA008 in the documented parts breakdown.\u003c\/p\u003e\u003ch3\u003eDoes it include the drive belt?\u003c\/h3\u003e\u003cp\u003eThe belt has its own reference. Confirm the supplier package rather than assuming it is included.\u003c\/p\u003e\u003ch3\u003eCan I change pulley size to increase speed?\u003c\/h3\u003e\u003cp\u003eDo not modify the documented drive ratio. Select the operator and components approved for the required application.\u003c\/p\u003e\u003ch3\u003eWill a new pulley fix a loose motor shaft?\u003c\/h3\u003e\u003cp\u003eNo. Shaft or bearing damage requires its own diagnosis and repair before the drive returns to service.\u003c\/p\u003e\u003ch2\u003eNeed Help Confirming the Right Product?\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/garage-doorparts.com\/pages\/contact\"\u003eContact Garage-DoorParts.com before ordering\u003c\/a\u003e. Send the full equipment model, readable part labels and photographs of the installed assembly. Include the dimensions, electrical configuration or accessory details relevant to your project so the listing can be checked against the actual installation.\u003c\/p\u003e","brand":"LiftMaster","offers":[{"title":"Default Title","offer_id":60655781445918,"sku":"MA009","price":10000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0978\/2781\/5710\/files\/ma009.jpg?v=1793139954","url":"https:\/\/garage-doorparts.com\/products\/liftmaster-ma009","provider":"garage-doorparts.com","version":"1.0","type":"link"}