Air
Conditioning
System
Manual
-------
Rolls-Royce
&
Bentley
--------------
B.100
l'ig.
11
Eaton
Magnetic
Clutch
Re-assemble the clutch and set the air gap between
the two drive faces
by
means
of
the three adjusting
screws in the drive plate. The gap should be 0·025 in.
to 0·035 in.
Examine the brushes for wear
and
renew the brush
unit
if
necessary. Failure
of
the clutch may
be
due
to the presence
of
grease
or
oil on
the
collector rings
and
brushes. This should be removed with a cloth
moistened with petrol and the unit assembled
and
tested.
The
Electro Lock Magnetic Clutch
as
Fitted
to
the
York
A.209
This clutch differs from the
Eaton
clutch
in
that
the
solenoid does
not
rotate with the Aywheel but
is
secured to
the
compressor
crankcase
and
thus
remains
stationary.
The
stationary
solenoid design eliminates
the necessity for feed brushes
and
collector rings and
reduces servicing to the provision
of
lubrication for
the bearings on which the clutch rotates.
Electro Lock
Clutch-To
Remove
Remove the
central
retaining
bolt
and washer from
the compre5sor
crankshaft;
insert
at
in.
UNC.
bolt
into
the bore
of
the clutch. Screw in the bolt
just
far
enough
to free the clutch from the crankshaft, then
withdraw the clutch
and
remove the bolt.
Extract
the spring ring from the clutch shaft
and
withdraw the shaft and driving plate. Inspect the
Section C4
drive springs
and
nylon spigots, also the fibre facing
in the
annular
groove
in
the driving plate.
Check
that
the bearings in the pulley are adcq uately
lubricated and
rotate
freely without roughness
or
wear.
Shaft Seal-Tecumseh
HH-To
Renew
With
the clutch assembly removed
from
the com-
pressor, press in the sealing ring seat
and
extract the
circlip to permit withdrawal
of
the seal assembly.
Remove
any roughness from the
shaft
surface by
lightly stoning, then
coat
all parts with refrigerant oil
before re-assembling.
Shaft
Seal-York
A.209-To
Renew
REMOVAL
Remove the flywheel
or
clutch
and
the
woodruff
key from the
compressor
shaft.
Remove the seal plate capscrews
and
washers
and
gently pry the seal plate loose, taking
care
not
to
mar
or
scratch the flat sealing surfaces
or
the polished
shaft
surface.
When
removing the seal plate, the
hand
should
be held
under
the seal housing to
catch
the
carbon
ring
if
it
is
free.
Do
not
pry
or
force the
carbon
ring with a
hard
sharp
object
in
such a
manner
as to
damage
the
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