Service Manual Core 1
st
stage
Service Manual Core 1
st
stage
Rev. 05/2015 11
9. With the thumb, engage the plug
(129120) into the body (129254).
Push on the plug to compress the
spring, at the same time screwing
the plug into the body until it blocks.
Using a torque wrench (122154),
tighten the plug to 0.5 m.kg (3.62
ft.lb).
Remove the regulator from the vice.
YOKE CONNECTION
Start after point 9
10. Fit a new lubricated O-ring (124703) into the yoke
shutter crown groove (129205), using the tool
(506001).
11. Install the yoke shutter valve (129207) inside the
yoke shutter crown (129205), and then fit in a new
lubricated O-ring (473056) in the shutter valve
groove.
12. Install the spring (129204) into the
yoke retainer (129212).
13. Place the yoke shutter crown (129205) onto the
spring (129204), put the sub-assembly into the yoke
(124611).
14. Install the dust cap (124555) between the yoke
(124611) and the yoke shutter crown (129205).
Tighten the yoke screw (128631) so that the spring
(129204) is compressed.
15. Stop tightening when the
yoke shutter crown
(129205) is set in this
position, the yoke screw
(128631) becomes hard
to turn.
16. Position the yoke retainer with
threads facing upward, using a
3mm Allen key, turn counter-
clockwise 3 full turns.
17. Tighten the yoke screw
(128631) again, so that
dust cap (124555) is snug
against the yoke retainer
(129242).
Securely clamp the assembly into
vice by gripping the yoke retainer
(129212) hexagon part with yoke
connection facing down.
18. Using a torque screwdriver
(122152) and a 3mm Allen key
adapter, turn counter-clockwise
and torque the yoke shutter
valve (129207) to 0.3 m.kg
(2.17 ft.lb).
19. Remove the assembly from the vice, entirely
unscrew the yoke screw (128631). Remove the dust
cap (124555) and the sub-assembly shutter/retainer
from the yoke (124611).
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