![Ronstan BB OrbitBlock RF25109 Series User Instructions Download Page 5](http://html.mh-extra.com/html/ronstan/bb-orbitblock-rf25109-series/bb-orbitblock-rf25109-series_user-instructions_1485264005.webp)
2.2.1 Pass the line down
through the head, out
through the rear side
cheek and through the
hub.
2.2.2 Loop under the
bottom of the block
and again though the
hub.
2.2.3 Repeat
step 2.2.2 if
more than one
loop is required
to meet the
desired breaking
load. Pass line
in through the
far side cheek
and back up
through the
head.
2.2.4 If another loop
is required to meet
breaking load, loop
the line around
fixing point, pass it
back down through
the head, out
through the near
side cheek, through
the hub, back in
through the far side
cheek and back up
through the head.
2.2.5 Finish
lashing with
appropriate knot,
splice or
whipping. Attach
the sheet to the
becket loops
using a bow line
or splice.
2.3 Single Line Used as Becket & Sheet Line - for Sheets up to 3mm (1/8")
2.3.1 Pass the line in
through a cheek, up
through the head, around
the fixing point, back
down through the head
and out through the
opposite cheek.
2.3.2 Pass both ends
through the hub in
opposite directions.
2.3.3 Finish lashing with appropriate
knot, splice or whipping. If a knot is
used it must not be a ‘slip’ knot, and
the knot must be such that it pulls
equally on each line leading up to the
hub. A bowline is ideal. Note: the
breaking load of the installed block is
dependent on the breaking load of the
line; up to a miximum B.L. of 550kg
(1210lb). Knots, splices, stitching, etc.
will generally have a lower breaking
load than the rope itself.