Triumph SPEED TWIN 1955 User Manual

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CLUTCH AND SHOCK ABSORBER UNIT
The shock absorber unit which is incorporated in the clutch is robustly constructed
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and is designed to give many thousands of miles of trouble free service.
Briefly,
it
operates in the following manner: the drive is transmitted through the clutch plates
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in the normal manner, then through the drive rubbers to the four armed spider
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which is keyed to the clutch shaft; this also being keyed to the gearbox mainshaft.
The spider is free to oscillate inside the clutch centce but is restrained by eight
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rubber pads, two on either side of each arm. The larger of these pads is the drive
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out all the engine speed variations at low speeds, providing an extremely smooth and
pleasant torque, which reduces transmission wear due to the absence of "snatch".
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REPLACEMENT OF THE CORiC INSERTS
The clutch is the multi-plate cork type incorporating a transmission shock absorber.
The pressure on the plates
is made by four equaliy disposed springs which can be
varied by screwing in or out the four slotted nuts which secure them. The clutch
It is not recommended that replacement of the cork inserts in the clutch plates is
made by the owner.
This operation calls for precision and special equipment
to
reduce the new inserts to the correct thickness at each side of the plate and to
ensure an even overall sudace. The better method
is to exchange the old plates
for service replacement plates
at the nearest Triumph Dealer.
!
is designed to operate in oil and it is therefore essential that the oil level in the
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chaincase is maintained otherwise the cork inserts may burn and disintegrate under
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heavy loading. Always use the recommended grade of oil (SAE 20 see lubricant
chart, page 200). If a heavier grade of
oil is used, the clutch plates w~ll not readily
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separate when disengaged which will cause difficult and noisy gear selection when
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the gearchange pedal is operated.
Even with the thinner grades of oil, the kick-
starter should always be operated a few times with the clutch extracted before
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attempting to start the engine. This procedure ensures that the plates separate
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freely when a gear selection is made.
OVERHAULING THE CLUTCH
! DISMANTLING
Exhaust Pipe and Silencer
L.H.
Remove.
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\ Footrest. Remove the left footrest.
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Footbrake Pedal.
Remove the unit from the pedai spindle.
Primary Chaincase.
On the
Rigid Frame
ST and 6T A.C. equipped models the
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stator leads must first be released from under the saddle mounGng and then freed
from the frame. Place an oil drip tray under the chaincase and proceed to remove
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the securing screws (all models). Exe the outer casing away and where an alternator
is fitted take care to avoid damaging the stator windings.

Triumph SPEED TWIN 1955 Specifications

General

Brand	Triumph
Model	SPEED TWIN 1955
Category	Motorcycle
Language	English