UNCONTROLLE
D IF P
R
INTE
D
VEHICLE H 983
Issue 1, Jul 11
ELECTRICAL AND MECHANICAL
ENGINEERING INSTRUCTIONS
20
Specifications
71.
The specifications for the brakes are as follows:
a.
Brake chamber clamp torque......................................................................................... 35 N.m (25 lb. ft)
b.
Maximum brake chamber pushrod travel .......................................................................................51 mm
c.
Brake chamber to clevis centre line..............................................................................................150 mm
ELECTRICAL
Repairs
72.
When carrying out repairs to the electrical system ensure that the following points are observed:
a.
A 6 mm white loop wire is to be fitted to plug pins ‘D' & ‘L'.
b.
All wiring is to be installed in soft conduit.
73.
An electrical circuit diagram for the dolly converter is shown in Figure 8. Pin and colour codes for the 12 pin
NATO connector are listed in Table 4.
Figure 8 Dolly Converter Electrical Circuit Diagram
Table 4 12 Pin NATO Cable - Pins and Colour Codes
Key to Pin Connections
Colour Code
Key to Pin Connections
Colour Code
A
Not used
Not used
H
Not used
Not used
B
Trailer stop light
Red
J
Not used
Not used
C
Not used
Not used
K
Auxiliary power winch
Red/yellow or Red/white
D Earth
White
L
Earth
White
E
Marker and clearance lighting
Brown
M
Left-turn indicator
Yellow
F
Not used
Not used
N
Right-turn indicator
Green
