John Deere — Replacing Mower Drive Belt (42 in Mower Deck)
Maintenance
From a John Deere owner's manual — check it applies to your exact model before use.
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Procedure
- Park machine safely.
- Remove mower deck.
- Remove belt: remove three capscrews and belt shield; remove two capscrews and belt shield; loosen sheaves; remove mower belt.
- Inspect belt for wear or damage; replace as necessary.
- Clean top surface of mower deck and sheaves.
- Install belt on mower deck as shown. Make sure belt is in the groove of each sheave.
- Tighten sheaves to specifications.
- Install belt shields.
- Install mower deck.
- Adjust mower belt tension and spindle brakes, if necessary.
Specs & values
- Mower Deck Drive Sheave Nuts (42 in Mower Deck)—Torque 47 N·m (35 lb-ft)
Source: John Deere owner's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.