3508B — Service Procedure

For the 3508B.

Procedure

1. Loosen clamp (1). Slide the clamp down on tube
2. Loosen clamps (3). Remove both breathers as a
3. Remove O-ring seals (4) from the valve covers.
4. Remove two clamps (6). Remove both breathers
5. Turn the breathers upside-down in order to inspect

Source: manual:3508B+Industrial+Engines-Maintenance+Intervals.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.