Connection pieces
Checking the risers and quick links
– are chafe marks, kinks, tears, or severe signs of wear and tear present?
– are all sewings firm?
– is the accelerator pulley free and intact?
– are the brake loop fasteners still sewn tight?
– are all quick links corrosion-free, is the thread going freely?
The measuring should occur under a load of 5 kg. The determined values are to be compared
with the specifications from the DHV type rating sheet. Permissible deviations can be found in
the manufacturers instructions. If the riser or parts of it are defective, replacement parts must
be ordered from the manufacturer and the defective parts replaced with an original replace-
ment part.
The determined values/modifications need to be recorded in the inspection log!
Lines
Checking the line tear resistance:
Line selection: a middle A-, B, and C- main line and if available middle B and B cascade line
should be selected and tested for tear strength using a tensile tester.
Pull speed of the pull cylinder: v = 30 cm / min
Tear / Tensile strength values
The determined values/modifications need to be recorded in the inspection log!
ATTEnTIOn:
Each size (line diameter) is assigned a fixed value. If the lines
cannot withstand the specified tensile load or tensile strength, all other
lines must be replaced. If the tested lines meed these test criteria, only they
will be replaced by new ones. All replaced lines should be marked near the
shackle (seam) with a black marker and noted in the test report with the
date of the exchange and the number of hours of operation on the equip-
ment. At the next inspection, an original neighbour line will be used for the
line strength test. The different line diameters are assigned a minimum
stitching length!
Checking of the line lengths and line attachment points
Visually inspect main-, cascade- and brake lines for tears, kinks and abrasion marks. First A-
line level then B etc.
– Are all the lines sewn and attached into the line fixtures adequately?
– Are the sheathings of the lines accurate?
– Are Are all loops, knots and stitches in good condition?
– Are abrasions visible?
