Maintenance; Draining; Re-Filling; Adjusting The Steering Head Races - Triumph SPEED TWIN 1945 Workshop Instruction Manual

TRIUMPH TELESCOPIC FORK
M A I N T E N A N C E
The. Triumph telescopic hydraulically controlled fork will require little attention
other than an occasional check of the external nuts, screws and washers. A t no
tlme during normal service will the forks need topping up with oil ; slight leakage
that may have taken place will not affect the fork action.
Periodic draining and re-filling every 5,000 miles (8,000 kms.) should be carried out
and If the leakage has become excessive, it will be necessary t o drain and re-fill the
forks before this distance.
Draining. To drain the oil from the fork, remove the t w o drain plugs a t the base
of the bottom cover tubes and compress the forks t w o o r three times. This causes
the oil t o be expelled
a t
a greater rate.
Re-Rlllng. Replace the drain plugs. Remove the headlamp rim assembly from the
nacelle, exposing the upper part of the stanchions. Unscrew the t w o screwed oil
plugs in the stanchion and pump i j6 Pint (100 c.c.) oil (See Lubrication Chart, page 200)
into each fork leg by means of a pressure can o r gun.
Re-filling t h e TR5 Forks. To re-fill the forks on the TR5, unscrew the two large
cap nuts, securing the stanchions t o the fork head lug, and pour in the oil past the
springs.
It
i s estimated that, under normal conditions, the time between fork overhauls
should be about 20,000 miles (30,M)O kms.). This work should be carried out by
a
dealer or by the Trlurnph Service Department.
A D J U S T I N G T H E STEERING H E A D RACES
Lower the rear or central stand
as
the case may be and raise the front wheel clear
of the ground by placing a box of suitable height under the crankcase. To test the
play In the steering head, slacken off the damper and grip the fork lower tubes; rock
the fork in
a
fore and aft direction. Care must be taken however, t o observe that
the play felt
i s
In the steering head and not in the fork bushes. By watching the
lower portion of the fork crown, any movement in the aces will be easily seen.
If play i s detected, adjust the races in the following manner.
T o p Lug C l i p Bolt. Slacken off the nut.
C r o w n and S t e m Nut. By swinging the fork t o the left or right
a
spanner can be
placed on the nut hexagon. The spanner should be turned clockwise t o eliminate
play, but only t w o finger pressure.should be applied. Now ease the pressure off by
lightly turning the spanner in the opposite direction and then test.
Testing. The fork should move t o the full lock posltlon in both directions under
Its own weight. If the movement i s sluggish slacken off the adjuster nut slightly
more and test again. Finally, check the steering when riding the machine on the road.