Vinten Vision 5LF Maintenance Manual page 28

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10.7 Assemble the thrust race and two thrust washers (8) on drag shaft (7) (complete with pan drag
knob boss (6)), observing correct orientation. Install 'O' ring (9) on drag shaft (7).
10.8 Install assembled drag shaft in mechanism housing (10) and secure with drag knob retainer stop
(1) and three screws (2).
10.9 Screw assemble clevis (34) on to drag shaft (7).
NOTE: The design of the pan drag top plate and spherical base changed from Serial No. 1288.
Ensure correct top plate, spherical base and 'O' ring are replaced.
10.10 Install 'O' ring (16) in pan bearing housing (15). Install bearing (14) in pan bearing housing and
secure with Loctite 641.
10.11 Install omniseal (20) in pan drag top plate (19), observing correct orientation.
10.12 Install the thrust race and two thrust washers (18) in pan drag top plate (19), observing correct
orientation.
10.13 Position pan drag top plate and assemble components over the pan bearing housing (15).
10.14 Install 'O' ring (17) on drag actuator (21). Position actuator in drag shoe assembly (22) and install
both on the pan bearing housing (15). Secure temporarily with two screws (26).
10.15 Install assembly in centralizing fixture (3390-904TL).
10.16 Screw in pan drag shaft (6) to expand drag shoe assembly.
10.17 Remove screws (26) one at a time and re-install using Loctite 221. Torque-tighten screws to
5.08Nm (45lbf in.).
10.18 Remove three screws (2), drag knob retainer stop (1), pan drag shaft (6) and pan drag lever (27).
10.19 Remove assembly from centralizing fixture.
10.20 Install 'O' ring (23) in spherical base (24).
10.21 Prime six screws (25) with Loctite N primer and allow to dry.
10.22 Position spherical base over drag shoe assembly and secure with six screws (25), using Loctite
222E.
10.23 Prime screw (12) with Loctite T primer and allow to dry.
10.24 Install screw (12) and washer (13) in clamp stud (27) using Loctite 241. Tighten screw (12) down
hard to bed in parts, then slacken and torque-tighten to 0.56Nm (5lbf in.).
10.25 Install actuator shim (29) and pan drag lever (33) on drag actuator (21).
10.26 Prime screw (32) with Loctite N primer and allow to dry.
10.27 Secure pan drag lever (33) with screw (32), using Loctite 222E.
10.28 Screw in pan drag shaft (7)(complete with pan drag knob boss (8)).
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