8
+ -
!
WD-40
EN
This installation and operation instruction apply to non standard automatic drawbar coupling
50mm RINGFEDER type 5055 in models A, B, AW, AP, AM.
Type 5055 is approved to connect with drawbar eyes 50 according to DIN 74053, ISO 1102
or D50 in accordance with 94/20 EC or ECE 55 R-01 and 50mm heavy duty drawbar eyes
(Ringfeder order no. 6991394 or equal).
These automatic drawbar couplings are to be used exclusively to connect with vehicles,
trucks and trailers equipped with the appropriate drawbar eyes.
When fitting (or replacing) the trailer couplings, always attend to the relevant statutory
regulations and particular information from the vehicle manufacturers. When replacing
the trailer couplings all component parts of the trailer couplings comprised in the delivery
have to be exchanged. Fitting of the trailer couplings on the vehicle has to be made in
compliance with the requirements laid down in appendix VII of the directive 94/20 EC and
ECE 55 R-01, respectively. Installation and maintenance works have to be carried out care-
fully and professionally.
When it comes to the four fastening screws and nuts, always attend to the screws and
nuts qualities given by the vehicle manufacturers that may possibly deviate from the present
specifications.
Maintenance
Installation
Operation
Functional
inspection
Acoustic inspection –
make sure that no air is
escaping!
Uncoupling procedure
Coupling procedure
Page 28-29
Tables (please
refer to p. 30)
Coupling (50 mm)
Lochbild (e1 x e2)
Screw
Washer Nut
Type Approval
Castellated nut Wrench size
Tightening torque
Page 30 - 89
Coupling open
Coupling
closed
and secured
Attention: Risk of
injury – jammed
fingers.
Lubricant
WD-40
Interval:
once per month
Wiring diagram for assembly
of LED and control unit.
Cable optional
Cable from
Customer
V - +
Attention!
Follow
instructions!
Spanner
required
Do not connect
to the braking
system!
Wiring diagram
Summary of Contents for 5055 A
Page 29: ...29 5055 A1 3 A2 4 ...
Page 30: ...30 A3 4 5055 ...
Page 31: ...31 A4 60 mm 60 mm 100 mm 5055 A4 5055 B 5055 A 100 mm ...
Page 32: ...32 A5 A6 5055 ...
Page 33: ...33 5055 A B 90º B1 ...
Page 34: ...34 B2 5055 A B ...
Page 35: ...35 5055 B3 ...
Page 36: ...36 C1 46 5 mm C2 5 mm 5055 5 mm ...
Page 37: ...37 5055 C3 C4 2 5 mm 36 5 mm ...
Page 38: ...38 C5 1 mm C6 4 mm 5055 1 mm ...
Page 39: ...39 5055 C7 0 C8 1 mm 1 mm ...
Page 40: ...40 C9 5055 ...
Page 42: ...42 42 5055 AW A1 ...
Page 44: ...44 44 A3 5055 AW R 250 mm ...
Page 45: ...45 A4 5055 AW A5 10 mm 1 mm 0 mm ...
Page 46: ...46 46 5055 AW A6 ...
Page 47: ...47 B1 5055 AW B2 B3 ...
Page 48: ...90º 48 5055 AW C1 1 ...
Page 49: ...49 C2 C3 5055 AW 2 1 2 ...
Page 50: ...50 C4 5055 AW 3 ...
Page 51: ...51 5055 AW C5 4 1 3 2 ...
Page 52: ...52 C6 5055 AW 5 ...
Page 53: ...90º 53 5055 AW C7 1 ...
Page 54: ...54 5055 AW C9 2 C8 1 2 ...
Page 55: ...C12 55 5055 AW 3 C11 C10 1 2 ...
Page 56: ...56 C13 4 C14 5055 AW ...
Page 57: ...57 C15 5055 ...
Page 58: ...58 5055 AP A1 ...
Page 60: ...60 5055 AP A3 1 2 3 ...
Page 61: ...61 5055 AP A4 ø 6 mm 6 8 bar ø 8 mm ø 6 mm ...
Page 62: ...62 5055 AP B1 1 1 2 ...
Page 63: ...63 5055 AP 2 B2 2 1 5 3 4 5 ...
Page 64: ...64 5055 AP 3 B3 6 8 7 9 1 2 ...
Page 65: ...65 5055 AP 2 1 2 1 B4 B5 B6 1 3 2 4 ...
Page 66: ...66 90º 5055 AP C1 1 ...
Page 67: ...67 5055 AP C2 C3 2 1 2 1 2 3 ...
Page 68: ...68 5055 AP 3 C4 ...
Page 69: ...69 5055 AP 4 C5 2 1 C6 ...
Page 70: ...70 5055 AP C7 5 1 2 3 ...
Page 71: ...71 90º C8 5055 AP 1 ...
Page 72: ...72 5055 AP C9 C10 2 1 2 1 2 3 ...
Page 73: ...73 3 5055 AP C12 C13 C11 1 2 ...
Page 74: ...74 C14 5055 AP 4 1 2 ...
Page 75: ...75 C15 5055 AP 5 3 ...
Page 76: ...76 5055 AP C16 ...
Page 77: ...77 D1 5055 AP ...
Page 78: ...78 ...
Page 79: ...79 ...