Barnstead FB1300 Operation And Repair Manual And Parts List page 19

M S
AINTENANCE AND ERVICING
Note
Nicking or damaging the ele-
ment leads will cause prema-
ture element failure.
18
Make the bend 90°, avoiding exces-
sive bending. (The element wires will
be exposed at the corner thus formed.
This will not affect its life or perfor-
mance.)
13. Bend the other side of the element.
14. Place the hearth plate across the open
end of the ''U" shaped element.
15. Slide the element and hearth plate unit
into the chamber, pushing it firmly
against the hearth collar. Use care not
to damage the soft insulation. Remove
any crumbs of insulation that may get
between the unit and the hearth collar.
16. Thread the element leads through the
ceramic bushings. Bend the leads so
they lie close to the refractory plate
and the bottom insulation block. (The
easiest and safest way to do this is to
press the wire flat with a stick or blunt
pusher. Do not use a sharp object or
nick the wire.)
17. Replace the glass sleeving and bend
the lead 3/4 turn around the terminal
screw. Cut off the excess wire.
Replace power wires on top of ele-
ment lead wires and tighten screw. Do
not cross the wire over itself around
the terminal; this makes it difficult to
keep the connection tight and prevents
good electrical contact. If you have
excess wire, cut it off. Make sure ele-
ment lead wires are not touching any
other wires.
18. Replace bottom cover of control unit.