Royal Enfield SPRING FRAME O.H.V. 250cc CLIPPER 1954 Workshop Maintenance Manual page 62

ROYAL ENFIELD WORKSHOP MANUAL
drive from the speedometer head and remove the
two plug screws and loosen the steering head
clip bolt and the two fork crown bolts.
Now unscrew the fork main tubes from the
fork head by means of a hexagon bar .500 in.
across flats (Unbrako wrench W.11) or the
special tool shown in Fig. 4. At the same time
unscrew the steering stem locknut from the top
of the steering stem, turning each tube and the
nut a turn or two at a time. When the nut has
been removed from the steering stem and the
main tubes have been completely unscrewed
from the fork head the complete fork and wheel
with the steering stem can be lifted out of the
head lug of the frame.
7. Lubrication
The lubrication of the fork bearings is
effected by the oil which forms the hydraulic
damping medium. The oil level is fixed by a
cross hole in the spring stud leading to a drilled
passage terminating in the oil level plug. To fill
each fork leg to the correct level remove the plug
screws from the fork head and the oil level plugs
from the fork ends. Pour oil in at the top until it
runs out at the bottom of the fork. Wait till oil
has stopped running and replace level plugs and
plug screws.
Recommended grades of oil are Castrolite,
Mobiloil Arctic, Essolube 20, B.P. Energol
S.A.E. 20, Shell X-100 20/20W.
Section J2 Page 3