Harken R27LS, Instruction Manual, Page: 17 / 86

26/01/22 ENGLISH 17
Load angle limitation
Rails can be mounted at various angles on the vertical mounting structure. Harken IN9606, IN9606.CLEAR,
IN9608, IN9608.CLEAR, IN9565, IN9565.CLEAR, IN158, IN158.CLEAR, INCAR1-CURVE, INCAR1-CURVE
(BLACK), INCAR2-CURVE, INCAR2-CURVE (BLACK) trolleys have the ability to handle loading at an angle up to
15° beyond vertical. Loads beyond 15° from vertical will overload trolley. See images below.
DESIGN SPECIFICATIONS
Preliminary info
The fall arrest system must be suitably designed by a qualified professional, since the correct installation and
subsequent safety of the users depend on its correct design.
The following are of the utmost importance:
• analysis of the installation location, in order to define the position where the rail will be installed;
• definition of anchor points (where the anchor brackets will be placed);
• distance between fastening brackets;
• how to fasten the brackets to the supporting structure (the Approved Designer/Installer and/or Structural
Engineer will decide whether to use mechanical or chemical dowels, bolts, screws... depending on the
anchorage structure’s characteristics).
Consider all factors that will affect safety during use of this equipment. Rail must be laid out and positioned
strictly in accordance with drawings and specifications supplied by the project authorized architect or other
suitably qualified person. System must meet controlling work at height regulations for country of use. Installer
shall ensure suitability of base materials and structural materials to which rail is fixed, follows controlling work at
height regulations for country of use, and ensures base and structural materials are capable of sustaining a proof
test force.
The weakest structural materials have been simulated in laboratory to evaluate the anchor device and its
fastening. Anyway, the test results don't supply any information on the structure capability to bear the loads,
which can occur during the use. The capability to bear the loads connected to a fall arrest is subjected to different
assessments, which are excluded from the application of the Regulations for which the product is certified.
NOTE!
The fastening system must always be designed by a qualified professional.
DESIGN