"CRUSADER
250," "250
CLIPPER"
AND
"CRUSADER
SPORTS'~
entirely. To remove the cleaner, hold it
by
the metal
portion and pull to the left, when it will free itself from
the rubber sleeve.
The cleaner
is
intended to be used dry and should
not
be oiled.
It
can be cleaned
by
brushing and blowing
with compressed air. As the air passes through the
element from outside to inside, the bulk of the dirt will
be
found on the outer surface of the element.
TRANSMISSION
38
Enfield Four-speed Gear. This gearbox
is
very
simple in operation and provided it
is
kept
well
lubri-
cated
will
give long and trouble-free service. A special
feature
is that the gears are controlled by a single-striking
fork so that it
is quite impossible to engage two gears
at
once, no matter how much wear bas taken place.
The foot control lever
is
adjustable to suit different
footrest positions. The lever
is
mounted on a serrated
shaft and, after slackening the clamping screw, can
be
removed and replaced on a different serration.
39
Clutch. The clutch
is
of
the multi-plate type, with
cork inserts.
If
clutch slip occurs, first make sure that
there
is
some slack in the control wire
(see
next Section).
If
this
is
in order, the clutch plates should be examined.
To do this remove the primary chain case on the
left-hand side of the engine and unscrew the three pins
near the centre of the clutch. The springs and plates may
now
be
lifted away.
If
the cork inserts are wom flush
with the metal or are bumt, they should
be
renewed.
Cork clutches grip equally well whether oily or dry but
wear better when oil
is
present.
If
the machine has been
run for some time with a slipping clutch,
new
springs
as
well
as
new
inserts may be required.
40
Adjustment of Clutch Control. Important. It
is
absolutely essential that there should be a small amount
of free movement of the clutch control lever.
If
this
is
not present, part of the spring pressure will be taken by
the:
clutch control wire instead of by the friction
29
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