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Home›Repair guides›Cummins/Onan›Fan Belt Removal (Models DFLC, DFLD and DFMB)

Cummins/Onan — Fan Belt Removal (Models DFLC, DFLD and DFMB)

Repair & overhaul

From a Cummins/Onan operator's manual — check it applies to your exact model before use.

Applies to: Cummins/Onan DFLB, Cummins/Onan DFLC, Cummins/Onan DFLE, Cummins/Onan DFM, Cummins/Onan KTA50 / KTTA50 engine, Cummins/Onan KTA50 engine, Cummins/Onan KTTA50 engine

Before you start

  • The fan belt idler is under tension; do not get hands between idler and belt or fan hub.

Procedure

  1. Remove safety cage (two halves) and fan belt guard.
  2. Loosen two capscrews on both ends of shock absorber and remove hardware.
  3. Use 8-point socket and breaker bar to hold idler against spring tension.
  4. Slowly turn wrench until spring tension is relieved and remove fan belt.
  5. Using overhead hoist and sling, support fan assembly at spacer.
  6. Remove six capscrews from fan support bracket and slip belt behind bracket.

Tools required

  • 8-point socket Amazon
  • Breaker bar or large wrench Amazon
  • Overhead hoist and sling assembly Amazon

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

Full service-parts list: Cummins/Onan DFLB →, Cummins/Onan DFLC →, Cummins/Onan DFLE →

Source: Cummins/Onan operator'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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