Ultimate Mower Deck Tune Up Checklist

Ultimate Mower Deck Tune Up Checklist

Tuesday, May 27, 2025

A printable step by step guide to keep your 46″ mower deck running smoothly.

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🗓️ Pre Season (Before First Use)

  • Inspect Belts & Pulleys • Check for cracks, fraying, glazing • Spin each pulley by hand to confirm smooth operation
  • Clean Deck Thoroughly • Remove grass buildup under the deck • Wipe down spindle housings and belt paths
  • Lubricate Moving Parts • Grease spindles, idler pivots and tensioners
  • Check Belt Tension • Use a tension gauge or deflection method (1/4" to 1/2" deflection at mid span)
  • Safety Inspection • Tighten all deck mounting bolts • Verify smooth clutch engagement and disengagement
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🌞 Mid Season (Every 25 Hours of Use)

  • Examine Belt Condition • Look again for wear and replace if cord shows
  • Balance and Sharpen Blades • Remove blades and check balance on a blade balancer • Sharpen edges and remove any nicks
  • Verify Deck Alignment • Measure side to side deck height (within 1/8")
  • Check Belt Path • Ensure belts track properly on sheaves with no off center riding
  • Confirm Grass Discharge • Inspect for even discharge and clear any clogs
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🍂 End Season (Before Storage)

  • Remove and Store Belts • Loosen tension and slide belts off to prevent set in
  • Final Deck Cleaning • Power wash underside and allow to dry completely
  • Prevent Rust • Spray deck edges and spindles with corrosion inhibitor
  • Plan Off Season Maintenance • Schedule blade re sharpening and oil change reminders
  • Get Winter Storage Guide • Subscribe at powerdrivebelts.com/newsletter for a free PDF

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Keep this checklist in your garage for quick reference and don’t forget to sign up for more seasonal tips exclusive discounts and downloadable guides at

Happy mowing 🚜✨

Download a file

ultimatelawnmowermaintenancechecklist.docx

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