LH chain couplings are made of NiCrMo alloy steel.Their breaking loads are higher
than those of the corresponding chains and they are high fatigue stress resistant thanks to a special machining and to over-refi ned heat treatments.
Assembly: in order to guarantee a correct operation and a satisfactory lifetime, the couplings must be set up in the correct position.
The GN type are set up so that they surround the wheel teeth, whereas the GV type must be set up as shown in fig. B and lie vertically on the wheel between two teeth.
The nuts of the GN couplings must be locked with a dynamometrical wrench, with the locking torque provided in the assembling istructions, depending on the size of the coupling. The GV couplings are simply assembled by fixing their locking plate in the correct position with two roll pins.
Giunti GV, GN, GX
