RIDGID DP1550 Owner's Manual page 18

Assembly (continued)
4. Unlock support lock and raise table so
its about two (2) inches below tip of
chuck.
5. Turn chuck sleeve clockwise and open
jaws in chuck completely.
6. Place a piece of wood on table. Turn
feed handles counterclockwise and force
chuck against table until chuck is secure.
Support
Lock
Chuck
18
Chuck
Sleeve
Feed
Handle
Wood