Vinten Vision 30 - Page 35

35
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37.6 Separate friction shoe carrier-top (228) from pan drag housing (226).
37.7 Inspect ’O’ rings (232) and (148) and omniseal (153) for deterioration or damage.
38 To dismantle the pan unit bearing sub-assembly proceed as follows (Fig 6.9):
38.1 Unscrew and remove two M3 Posidriv countersunk head screws (106) locking bearing nut (225)
to pan unit top plate (224).
38.2 Unscrew and remove bearing nut (225).
38.3 Separate bearing housing (221) from pan unit top plate (224) and remove needle thrust bearing
(222) and two thrust washers (223).
38.4 Inspect needle thrust bearing (222) and deep groove bearing (62) in bearing housing (221) for
wear.
Assemble
39 To assemble the pan unit bearing sub-assembly proceed as follows (Fig 6.9):
39.1 Lubricate both bearings (62) and (222) with white bearing grease.
39.2 Fit deep groove bearing (62), if necessary. Refer to Para 60.
39.3 Assemble thrust washer (223), needle thrust bearing (222) and second thrust washer (223) into
groove of bearing housing (221).
39.4 Mate bearing housing (221) with pan unit top plate (224) and secure with bearing nut (225).
Tighten bearing nut (225) to a torque of 3.6 Nm (32 lbf in.).
39.5 Lock bearing nut (225) with two M3 Posidriv screws (106) removed at Para 38.1.
40 To assemble the pan drag unit sub-assembly proceed as follows (Fig 6.9):
40.1 Lightly apply white bearing grease to all moving contact surfaces particularly ’O’ ring (148),
friction shoe assembly (144) pivot blades, friction shoe pivots (143), ’O’ ring (232), and omniseal (153).
40.2 Fit ’O’ ring (148) into internal groove of friction shoe carrier-top (228).
40.3 Pass a shim (229) over drag actuator shaft (230) and assemble shaft into friction shoe carrier-top
(228).
40.4 Fit a friction shoe pivot (143) into its location on friction shoe carrier-top (228).
40.5 Fit a pair of friction shoe assemblies (144) to pivot (143), interleaving pivot blades.
40.6 Repeat 40.4 and 40.5 at the other position on friction shoe carrier-top (228).
40.7 Position second shim (229) centrally over end of drag actuator shaft (230).
40.8 Locate friction shoe carrier-lower (231) over friction shoe pivots (143) and spirol pins (111).
40.9 Secure friction shoe carrier-lower (231) to drag actuator shaft (230) with four M5 socket
countersunk head screws (110) removed at Para 37.1. Lock screws with Titanine.