"CRUSADER
250," "250
CLIPPER"
AND
"CRUSADER
SPORTS"
clearance in the clutch control is taken
up
during the
first few hundred miles with a new machine. This point
should therefore be examined soon after delivery and
adjustment made if necessary.
41
Quickly Detachable Rear Hub with
Patent
Cush
Drive. The "Crusader"
and
"Crusader Sports" are
fitted with a quickly detachable full-width rear hub
incorporating the Royal Enfield patent cush drive which
takes
up
the drive from the countershaft to the rear
wheel with great flexibility
and
smoothness. This hub
has a marked effect on the running
of
the machine,
absorbing all engine shocks
and
preventing any snatching
of
the driving chain, and consequently minimising the
wear
on
the rear tyre. A
drum
inside the driving
sicle
of
the rear hub is provided with three metal vanes, and
the inside
of
the driving sprocket has three sirnilar vanes.
On
each
sicle
of
the vanes in the hub is placed a block
of
solid rubber, and the vanes
on
the inside
of
the driving
sprocket fit between these blocks. When in position
there is a block
of
rubber
and
a metal vane alternately.
This cush drive hub is so simple
that
the only parts
likely to wear are the rubber blocks
and
the Iock ring
which should be replaced when they show signs
of
appreciable wear.
42
Adjustment of Chains. Access to the primary chain
adjuster
is
gained by removing the chain case cover on
the left-hand
sicle
of the engine, having a tray beneath
the case to catch escaping oil.
The
slipper beneath the chain, see Fig. 4
on
page
22.
should be raised or lowered by means of its adjuster,
until there is
!"
up-and-down
movement at the centre
of the top run of the chain. Lock the adjuster, replace
the cover and refill with about one-third of a pint of
engine oil.
Rear
chain adjusters take the form of cam plates which
are rotated after slackening the wheel spindle nuts, brake
anchor
nut
and the two screws
"A"
(see Fig.
8)
holding
the rear chaincase to the swinging
arm
.
The
chain tension
32
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