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Cummins/Onan — Fan Belt - Replace

Maintenance

From a Cummins/Onan owner's manual covering: K 19, K19, K19 Series, KTA19, KTTA19, Kt19. Check it applies to your exact model before use.

Applies to: Cummins/Onan K 19, Cummins/Onan Kt19, Cummins/Onan K19 Series (KT19/KTA19/KTTA19) engine, Cummins/Onan KT19 engine, Cummins/Onan KTA19 engine

Before you start

  • The fan belt idler is under tension. Do not allow hands between idler and belt or fan hub.

Procedure

  1. Hold idler in position against spring tension and remove capscrew using 8-point socket and breaker bar.
  2. Slowly turn wrench until spring tension is relieved.
  3. Remove fan belt.
  4. Visually check belt for cracks, glazing, tears or cuts.
  5. Install belt.
  6. Rotate idler against spring tension until capscrew holes align.
  7. Install capscrew and tighten to 45 Nm [35 ft-lb].

Tools required

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

Specs & values

  • 45 Nm [35 ft-lb]

Full service-parts list: Cummins/Onan K 19 →, Cummins/Onan Kt19 →

Source: Cummins/Onan 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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