Firman T04073 — Inspect Muffler and Spark Arrester
Maintenance
For the Firman T04073, from the Firman owner's manual.
Applies to: Firman T04073
Procedure
- Inspect muffler for cracks, corrosion, or other damage
- Remove screws securing spark arrester and remove from muffler
- Carefully remove carbon deposits from spark arrester screen with wire brush
- Replace spark arrester if damaged, using only FIRMAN OEM parts
- Position spark arrester in muffler and attach with screws
Tools required
- wire brush Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Full service-parts list: Firman T04073 →
Source: Firman 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.