VBG RINGFEDER RUwg Instrucciones De Montaje página 8

EN
Installation Operation
These installation and operating instructions apply to automatic RINGFEDER hook type cou-
plings of the series RUwg, 663 and RU K5DV (see tables on page 28).
The axially turnable automatic hook type couplings in accordance with STANAG 4101 are
exclusively designed to connect with vehicles equipped with axially fixed 76 mm toroidal
drawbar eyes class L in accordance with the ECE 55-01 regulation and 76 mm toroidal
drawbar eyes in compliance with VG 74059 (NATO) or equal toroidal drawbar eyes.
In case of automatic hook type couplings with general type approval the range of application
is thereby restricted to vehicles of the German Armed Forces.
When fitting (or replacing) the trailer coupling, always attend to the relevant statutory regu-
lations and the particular information from the vehicle manufacturers. When replacing the
trailer coupling all component parts of the trailer coupling comprised in the delivery have
to be exchanged. Fitting of the trailer coupling on the vehicle has to be made in compliance
with the requirements laid down in appendix VII of the ECE 55-01 regulation. Installation and
maintenance works have to be carried out carefully and professionally.
When it comes to the fastening screws and all-metal self-locking nuts, always attend to the
qualities given by the vehicle manufacturers that may possibly deviate from the present spe-
cifications. Alternatively to a screwed connection using washers, also corresponding flange
head screws and flange nuts can be used, in which case the washers can be dropped. The
length of the screws is to be adapted to the drawbeam thickness. The axial turnability of the
trailer coupling must not be obstructed by protruding screws.
8
Maintenance
Page 28-31
Tables Automatic
(please refer to p. 28)
Hook Coupling
Screw Washer Nut
Tightening torque
Wrench size
Page 32-52
Coupling open Coupling closed
and secured
Grease lubrication Interval:
Once per quarter
Flange design RU
Flange design
K5DV (e1 x e2; e3)
(e1 x e2)
Type Approval, ABG Castellated nut
Admissible trailer load for rigid drawbar trailers
Sight check Attention: Risk of
injury – jammed
fingers.