Stryker Medical 1068, Maintenance Manual

Page: 9 / 96

5.3
Service Information
ENHANCED CLEARANCE HEAD/NECK ASSEMBLY REPLACEMENT (CONTINUED)
HEAD SECTION INSTALLATION PROCEDURE (CONTINUED)
(Refer to drawing number 1068–232–10 pages 43.2 & 43.3 for part reference)
13. Pull the left release handle again and be sure the anti–rotation gear pulls back as far as the adjustment
wedge will allow it to go. If it doesn’t go all the way, adjust the right side flange nut and jam nut to the
left until the anti–rotation gear reaches its full travel. While holding the flange nut with a thin 3/4” wrench,
use the other 3/4” wrench to bring the jam nut up tight to the flange nut. Repeat steps 11–13 until proper
adjustment of the release handle is achieved. When the adjustments are finished, be sure all the flange
and jam nuts are firmly locked together.
14. From under the head section, turn the anti–rotation adjustment screw (item M) counterclockwise until it
stops. Do not force it tighter! (You can adjust the neck section up high enough to see both sides of the
head section of it is easier).
15. While lifting lightly up and down on the head piece, push the adjustment wedge down as far as you can.
While holding the wedge down, turn the adjustment screw clockwise until you feel it contact the bottom
of the wedge. Holding the adjustment screw in this spot, tighten down the nut (item AK) on top of the
adjustment wedge.
16. Check the wedge adjustment by pulling and releasing the left handle and checking to see if the anti–rota-
tion gear has returned to its locked position against the other gear. If it hasn’t, the wedge is too tight.
Readjust the wedge by holding the adjustment screw and loosening the nut on top of the wedge. Turn
the adjustment screw clockwise in small amounts and tighten the nut again. Check the adjustment and
repeat the adjustment until the anti–rotation gear is locking properly against the other gear.
17. If the neck section seems loose when it is lifted up and down, the adjustment wedge is too loose. The
adjustment procedure is the same as in step 16 except the adjustment screw must be turned counter-
clockwise to adjust the wedge down tighter.
18. When all adjustments are complete, reinstall the plastic neck piece cover (item X).