of the engine's life is strongly recommended.
The
compound, several brands of which are avail-
able
may
be obtained from
all
NORTON agents, contains "colloidal graphite,'' which forms a
graphoid surface on all working surfaces of the engine and greatly assists
in
preserving their high
quality finish.
The
compound should be mixed with the lubricating oil in the proportion of one
pint to each gallon during the running-in, but
if
its use is continued after this period only half
the quantity should be used.
Under all usual circumstances when the machine is travelling
at
25
miles
per
hour or
over the air lever should be fully open and the ignition fully advanced, and only during starting
or when the engine shows a tendency to pink should the ignition
be
retarded . Remember that
these are high
efficiency
engines which give of their best when running
at
relatively high revolu-
tions, and do not be afraid to change into a lower gear
at
the first signs of labouring. We would
stress that the highest possible use should be made of the gearbox, which is quite capable of
withstanding
all
the loads likely to be imposed on
it
by normal usage.
At the end of this book
will
be found a trouble tracing chart~ reference to which will
greatly facilitate the locating and rectifying of any
but
the most unusual troubles which may be
likely to cause an involuntary stop.
CLEANING
Before attempting to polish the enamel on any part of the machine, all traces of grit
adhering to the various components should be washed
off,
preferably with a reasonably high
pressure hose. Polish the enamel periodically with a good quality wax polish. Note that chromium
plating
is
not impervious to rust and should be wiped down when possible, after being in the
rain. Wash
off
any road grit and clean with one of the chromium polishes available from any
garage.
Do
NOT
use ordinary metal polish.
LUBRICATION
At
the
Works, Wakefield Castrol Oils have been used for many year's exclusively with highly successful
results; the correct grades for the models dealt with
in
this book being : -
WAKEFIELD
CASTROL
XXL, for Summer use.
WAKEFIELD
CASTROL
XL,
for Winter use.
Other
very suitable oils for
NORTON
machines
are:-
SHELL
X-100-40
or
B.P.
ENERGOL
S.A.E. 40 for Summer use.
SHELL
X-100-30
or
B.P.
ENERGOL
S.A.B. 30 for
Winter
use.
MOBILOIL
" BB " for Summer use.
MOBILOIL
"A"
for Winter use.
These oils should
be
used
in
the
engine
and
gearbox.
For
oilbath cbaincase use Wakefield's "Castrolite ." Shell X-100-20, Price's Bnergol S.A.E. 20,
or
Mobiloil Arctic.
All bearings
not
automatically lubricated are fitted with nipples for grease
gun
lubrication,
and
a good
quality grease, such as Wakefield Castrolease Heavy, B.P. Bnergrease C3, Shell Retinax
or
Mobiloil
Hub
Grease should
be
used
at
these points. • ·
Below is a lubrication chart indicating the approximate periods
at
which
the
various lubrication points
should receive attention.
If
the
chart is adhered to, excessive wear will
not
occur
at
any
of
the
moving parts,
the life
of
the machine will
be
prolonged
and
its performance considerably enhanced.
NOTE.---On a new machine, drain
and
flush
out
oil tank after
500
miles. Remove crankcase drain
plug
and
allow
to
drain. Remove level indicator plug from oilbath chaincase
and
fill to
th
is level.
LUBRICATION
CHART
Period.
Location
Lubricant.
Period.
Location
Lubricant.
Every 200
Oil tank, top
up
...
..
.
Oil. Every 2,000 Brake pedal .
..
..
.
Grease.
miles.
miles. Brake shoe cams
..
.
Every 1,000
(sparingly)
Grease.
miles.
Brake
rod
jaw joints
...
Oil.
C.Ontrol
cables
.
..
.
..
Oil . Speedometer driving box
Grease .
C.Ontrol
levers
.
..
...
Oil .
Drain
and
refill oil tank
Oil.
Brake cable
"U''
clip
...
Oil. Steering head races ...
Grease.
Rear chain ...
...
Grease.
Every 5,000
Gearbox, drain
and
refill
Oil.
Gearbox, top
up
...
...
Oil.
miles .
Oil bath, top
up
...
..
.
Oil.
C.Ommutator
end
bracket
Oil.
Telescopic forks . . . . ..
See para. 70
!!very
10,ooolOil
bath, drain
and
refill
Oil
miles.
6
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