37
HTEC-500
21. Reassemble the pump head carefully. Take
care not to break the new piston by twisting
the pump head. After insertion of the piston
slowly and softly into its position at the back of
the pump head, please push the center of
the pump head a little bit harder, but
carefully, using a finger. Any movement, in
any direction other than directly straight in,
will break the piston.
22. Tighten both screws. Do so alternatively and
evenly (like an automotive tire). Do not
completely tighten up one screw before the
other one.
