Harken TTR AirBlock - Manual (Page 2)

CORRECT INCORRECT
CORRECT INCORRECT
WARNING: Do not attach loop using choker method shown below as
this will considerably weaken block so it can easily break under load
causing an accident, damage to vessel, personal injury or death.
WARNING: Attach loop/lashing only through mouth of sheave.
Attaching line to or through block head will considerably weaken
block so it can easily break under load causing an accident,
damage to your vessel, personal injury or death.
Attach Block
1. Lash loop to head of block
with small control line using
square knot. Run line ends up
and behind lashing, then down
and under itself on each side
of knot. Pull tight to secure.
2. Secure stop knot by carefully
melting line ends with a hot knife.
WARNING: If lashing comes loose, block can flip and cause line
to jam, resulting in loss of control. This can lead to an accident,
damage to your vessel, personal injury or death.
If lashing comes loose block
can flip so that sheet rides
off sheave.
INCORRECT
Lash Block Head
TTRs can be set up as becket or fiddle blocks. Attach becket or secondary
block to anchor point. Lash to head and upper part of mouth as shown.
WARNING: Attaching becket or secondary block to primary block
will weaken block so it may break under load causing an accident,
damage to vessel, personal injury or death.
Use as Becket/Fiddle Block
Anchor Point Chafing or Cutting
Loops must be attached to round bails such as those found on padeyes
or pins. Sharp edges on many perforated toerails will cut loop, severely
weakening it. When loop is attached to a plate, it must be at least 1/4"
thick and have rounded edges to keep loop from being damaged.
Sharp edges will
damage loop
Round edges to prevent
damage to loop
CORRECT INCORRECT
WARNING: Loops or lashings running over a sharp edge can cause
part to break under load causing an accident, damage to your
vessel, personal injury or death.