Micra ADJ Second Stage Service & Repair Manual
7
© 1997 U.S. Divers Co., Inc.
out, unless corrosion or salt buildup is present. Set the pin
aside, and slowly release pressure on the retaining sleeve to
prevent the sudden ejection of parts.
NOTE: If necessary, the Seat Extraction Tool (P/N 1094-36)
or similar probe can be used to press out the pin.
A17. Remove the lever retaining sleeve, and examine closely to
compare its features with those shown in Figure 3a to
positively identify it as Revision A.
CAUTION: Do not attempt to reuse the lever retaining
sleeve if it is identified as Revision A. Discard and replace
with new, using the current Revision B part (see Fig. 3b).
VALVE DISASSEMBLY PROCEDURE - REVISION B
B10. Pull the cap nut off the stem of the adjustment screw and
examine closely to ensure that no signs of cracking or other
damage are present. If damage is found, discard the cap nut
and replace with new.
B11. While holding the lever retaining sleeve secure, turn the
adjustment screw clockwise by hand to loosen and remove
from the sleeve (left hand thread). Remove and discard the
O-ring(29), and set the adjustment screw aside.
B12. Apply a medium blade screwdriver to the slotted head of the
adjustable crown(12), and turn the crown clockwise to the
full extent of its thread engagement until resistance is felt.
B13. To remove the lever, insert the slotted end of the Lever
Removal/ Installation Tool (P/N 1008-84) into the adjust-
ment end of the valve body, and rotate the tool slightly until
the keyed slots fit over the pin and lever inside (see Fig. 4).
Press the tool into the valve body to compress the poppet
spring, and hold with one hand while pulling the lever
straight out with the other. Remove the tool and inspect the
lever to check for any signs of bending, distortion, or exces-
sive wear of the plating. If any of these conditions are
found, discard the lever and do not attempt to reuse.
B14. Apply a
w
" open-end wrench to the hex nut(13) and turn it
counter-clockwise to loosen and remove.
B15. While holding the box bottom(14) secure, grasp the valve
body between thumb and forefinger, and press firmly against
the inlet end of the valve body to remove it from the oppo-
site side of the box bottom. Remove and discard the O-
ring(30), and set the box bottom aside.
B16. Examine the adjustment end of the valve body to locate the
pin(22) which holds the poppet(24), spring(25), and
washer(26) in place (see Fig. 2b). Insert the slotted end of
the Lever Installation Tool into the open end of the valve
body, over the pin. Press the tool inward and turn the valve
body so that the head (larger end) of the pin is facing
straight down. This will allow the pin to easily fall out,
Fig. 2b - Recessed Pin (Rev. B)
Rev. B
Rev. A
Fig. 3a - Retaining Sleeve Comparison
Fig. 4 - Lever Tool Alignment
Window Above Rail
Closed Pin Guide
