12
MTX-R 2nd Stage Maintenance Manual
18. While depressing
the Lever, insert the
Valve Spindle through
the Venturi Lever
assembly and into the
Case.
CAUTION: Ensure
that the Lever
is vertical after
tightening.
CAUTION: Excessive
tightening of the
Heat Exchanger will
damage the Blanking
Piece and Case.
19. Slide a new, lubricated ‘O’ Ring (10) down the
threaded end of the Valve Spindle (17). Screw the
Heat Exchanger (9), widest hexagon side facing
outward, onto the Valve Spindle until nger tight.
22. Fit a new, lubricated
‘O’ Ring (15) onto the
Seat (16).
CAUTION: Ensure Diaphragm is seated
correctly and not creased.
Fitting Diaphragm
24. While holding the
rim of the case at eye
level, turn the seat
clockwise until the
lever drops about 4mm
below the case rim.
25. Position the Diaphragm (4) into the Case (6).
Using your nger, work the edges of the Diaphragm
into place so it sits evenly in the Case. Install
the Diaphragm Cover (3) into the Case, over the
Diaphragm.
CAUTION: Ensure
that the two ats
and the two Lever
feet engage in
the tabs of the
Blanking Piece.
21.Using an 28mm
crows foot, tighten the
heat exchanger to a
torque of 3 Nm (2.2 ft/
lb).
20. On the opposite adjustment side of the spindle
assembly, notice the two ats. Using a soft jaw vice,
clamp the whole second stage using the ats to avoid
the spindle turning within the case.
23. Press the Seat assembly threaded end rst
into the Valve Spindle (17). Using the Slotted Seat
Adjuster Tool (AT51/L), push the Seat into the Valve
Spindle as far as it will go.
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