During the machine's next scheduled oil change remove the old filter element (322-3155) from the filter housing (322-3154). With housing empty, pull the drain valve out as far as it will go (approximately 12mm). See Image 1. After pulling the drain valve out compare it to Image 2. If the o-ring is visible replace old drain valve with a new drain valve (354-5833). If the o-ring is not visible then push the drain valve back up in the housing and proceed with the filter change.
ACTION REQUIRED