V802 Leak Check

Attach vacuum source on to V802 hose barb and put finger over end of threaded rod - Holding vacuum should read 20" Hg or more.

1. Check Bearing Seal covering the bearing.  If there is ANY damage replace seal.

The V802 Vacuum Adapter is unique because of its vacuum bearing seal and is the leading cause of vacuum leaks in for this item.  Unfortunately some of our customers have damaged this seal by pressing the blue vacuum hose against it creating a ragged edge on the seal around the hose barb.  This causes vacuum leakage.  Wrinkles, cuts, wear and misalignment can also cause leakage.

Please follow these instructions:

•  Do not push  vacuum hose all the way on against the black bearing adapter and diaphragm bearing seal.

•  Leave a "penny gauge" 1/16" gap to keep hose from damaging the bearing diaphragm seal. 

•  Replace diaphragm seal if damaged with the enclosed seals.

Seal Replacement:

1. If your vacuum seal is damaged in any way, pull off the old seal like pulling off tape.

2. Peel off backing of new seal and cautiously place new seal over hose barb.

3. Center as close as possible.

4. Using both hands to hold the seal while pushing down helps to avoid wrinkles.

5. Use fingers to smooth seal in place.

6. Initial vacuum applied will help to seat seal.

2. Threaded Rod

1. Check to make sure threaded rod is threaded completely into bearing assembly.

2. If threaded rod was unscrewed make sure the threads are sealed with Teflon tape or thread sealer.

3. 802-3 Locking spindle Adapter

1. Adapter should be seated in morse taper of spindle.

2. Tread sealer may be applied on threaded rod before screwing adapter on to provide maximum vacuum seal.

4. Vacuum adapter hose barb

1. On a rare occasion the hose may need to have a clamp because of a stiff hose or slightly out of round barb.

5. Using other than V802 Vacuum Adapter

1. The V802 Vacuum adapter is highly recommended as other manufactures adapters leak excessively.