It is important that the sweeper’s seals on the fan housing be kept in the best condition possible. These include the seals on the suction hose inlet, around the hopper’s inspection door opening and on the rear door. Pickup power is vacuum dependent, so a tight seal can make a significant difference in pickup ability. Maintain resilience by keeping the seals well lubricated with a good grade of petroleum-based jelly or grease.

For longer seal life, when the sweeper is parked for an extended period of time, leave the dump door and all inspection doors open and raise the hopper several inches so their seals can regain their shape.

Eventually the seals will become worn or non-resilient and must be replaced.

Fan Seal	Intake Seal