VEVOR ROPE-G-001 Benutzerhandbuch Seite 9

the gaffs (i. e. loose bark). Always be sure that gaffs are in a safely anchored
position before taking the additional steps or before working.
PLANE TEST ACCORDINGTO ASTM F887 (Fig 3 & 4)
This test may be used to determine that the gaff is correctly shaped and
sharpened to properly penetrate the pole. Place the climber on a flat, soft pine or
cedar board. Holding it upright with the shank parallel to the board surface, but
with no pressure on the stirrup, push the climber forward along the board as
shown in figure below. If the gaff is properly shaped and sharpened and if the gaff
angle with the wood is sufficient, the gaff point will dig into the wood and begin to
hold within a distance of approximately 1 in. (2.54 cm). If the climber gaff slides
along the wood without digging in, or merely leaves a mark or groove in the wood
as shown in figure below, the gaff is either not properly sharpened and shaped or
the gaff angle is too small. The gaff angle is built into the climber by the
manufacturer and should be between 11 and 17 degrees with the climber placed
parallel to the surface of the wood.
8