Low Holding Vacuum Vacuum Head Check

• Hand screw on the V803:  3" chuck or V806: 6"  vacuum chuck head
• Place a non porous surface on the head - check holding vacuum above 20” Hg.

1. Put included Spindle washer in place before hand screwing vacuum head onto spindle.

1. Spindle washer helps provide additional vacuum seal.

2. Check that Vacuum Head is screwed all the way on.

1. The Hold Fast vacuum head adapters are precision made but some lathe spindles are not and are oversized.

2. If the Hold Fast vacuum chuck head will not hand screw all the way down either the spindle threads need to be chased or the adapter needs to be rethreaded.

3. Many professional woodturning stores have this equipment or we will rethread the Vacuum Chuck threads for you.

4. If there is too much play in the threads (spindle undersized) Teflon tape may elevate leakage.

3. Check Head Seals

1. Check the two vacuum head seals for damage and replace if necessary.

2. If replacing seal use Stick Tac pressure adhesive or similar to allow for future replacement.