Triumph Tigress TW2 Service Sheet Download

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Service Sheet No. 1004 (contd.)

When all the screws, nuts and bolts are removed, the primary drive cover can be taken off,

the joint being broken by gently tapping the cover with a rawhide mallet or a hammer shaft but
great care must be taken or the cover may be cracked or distorted.

The clutch push rod will come away with the cover. The condition of the phosphor bronze

pad on the push rod should be carefully noted and if it shows signs of having worn or the metal
having "picked up", the push rod should be replaced. Make sure that the small rubber "0" ring
on the push rod shaft is in good condition, and if necessary replace it to prevent leakage  of oil
through the push rod bore. The final drive, support arm bearing is a press fit into the  primary
drive   cover   and   if   it   is   to   be   removed   the   cover   should   be   heated   in   boiling   water,   and   the
bearing driven out with a suitable punch through the hole in the housing. The replacement must
be fitted while the cover is still hot. (This method should be employed whenever a bearing is to be
removed   from   an   aluminium   case.)   The   contact   breaker   drive   is   simply   a   sliding   fit  in   the
bronze bush in the rear primary drive case.

Before removing the clutch, flatten

the   tab   washer   on   the   larger  primary
driven gear and slacken off the centre
nut. This operation  will be facilitated
if   the   unit   is  placed   in   gear   by
operating   the  gearchange   spindle   and
the   brake   '  applied   with   a   suitable
length of tube over the brake lever.

Now unscrew the three clutch

pressure   spring   nuts.   To   avoid
tilting   the   plate   and   locking   the
nuts   give   each   nut   approximately
one   full   turn   at   a   time.   When   all
the   nuts   are   off   take   off   the   springs
and place the pressure plate on one

side. Then replace the spring and
nut on one of the studs to keep the
unit intact during dismantling.

Removing Clutch Unit

Flatten the star shaped tab washer
under the clutch centre nut and

Fig. 5.

remove the nut, again locking the unit in the manner just described. Great care must be taken to
avoid damaging the clutch spring studs for they can very easily be bent if the spanner slips.
When the nut is off remove the star washer and, using service tool number 61-5007, draw off
the clutch centre and clutch complete as in Fig. 5.

The clutch housing and gear is a push fit over the bearing and can be taken off without an

extractor. It should be noted that there is a thrust washer between the end of the clutch sleeve
and the splined clutch centre, and this washer has the chamfered face outwards towards the
clutch.

The driving and driven plates should be carefully examined. If the steel driving plates are

badly scored they should be replaced and if the bonded driven plates have the segments worn
thin these also should be replaced. (The sequence of assembly is first a driven plate with a bonded
lining against the rear pressure plate, than a plain steel driving plate and so on alternately.