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Hercules — DESCRIPTION AND MAINTENANCE

A Hercules service procedure — check it applies to your exact model before use.

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Procedure

  1. 2. Remove the idler gear.
  2. 3. Drill the pin out of the distributor drive-and-shaft assembly, press the shaft out of the distributor gear
  3. and pull the shaft and driven gear from the pump body.
  4. 4. To remove the oil pressure regulator parts from the base plate, remove the cotter pin, spring seat.
  5. regulating spring and the piston, in this order. (Note the position of the piston in the base plate, so it
  6. will be properly reinstalled).

Source: manual:335813135-Hercules-G1600-Service-Manual.pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.