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Kohler KDI 1903 TCR / KDI 2504 TCR — Alternator standard belt tension check and setting

Adjustments · alternator belt

For the Kohler KDI 1903 TCR / KDI 2504 TCR, from the Kohler owner's manual.

Applies to: Kohler KDI 1903 TCR, Kohler KDI 2504 TCR

Before you start

  • Check belt tension only when engine is off.

Parts for this job

Part numbers from the service-parts lists for Kohler KDI 1903 TCR, Kohler KDI 2504 TCR. Verify against your serial number before ordering; some links are affiliate links.

Procedure

  1. Check belt A condition; replace if worn out or deteriorated.
  2. Check at point p that tension is between 80 and 85 Hz.
  3. Using DENSO BTG-2 or similar tool F, check corresponding value is between 350 and 450 N.
  4. If no tool, apply approx. 10 kg force at point p; movement must be less than 10 mm.
  5. If not correct, loosen fastening bolts B and C.
  6. Pull alternator outwards in direction D to tension belt.
  7. Tighten bolts B and C in sequence with torque wrench E at 40 Nm.
  8. Check tension again; let engine run and cool, repeat adjustments if out of range.

Tools required

  • DENSO BTG-2 or similar belt tension tool Amazon
  • torque wrench Amazon

Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.

Specs & values

  • 80-85 Hz
  • 350-450 Amazon eBay N
  • <10 mm at approx. 10 kg
  • 40 Nm

Full service-parts list: Kohler KDI 1903 TCR →, Kohler KDI 2504 TCR →

Source: Kohler 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.

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