Balance Mechanism - Vinten Vision 5LF Maintenance Manual

Contents
11.15 Install assembly in centralizing fixture (3395-906TL).
11.16 Using the fixture, expand the drag shoe assembly.
11.17 Remove screws (35) one at a time and re-install using Loctite 221 on threads and Loctite 601
under heads. Torque-tighten screws to 7.34Nm (65lbf in.).
11.18 Remove from fixture.
NOTE: The design of the tilt drag cover/brake disc assembly changed from Serial No. 1288.
Ensure correct housing and 'O' ring are replaced.
11.19 Install 'O' ring (31) in tilt drag cover/brake disc assembly (30).
11.20 Degrease and prime six screws (1) with Loctite N primer and allow to dry.
11.21 Install completed outrigger assembly on tilt drag housing (2). Align fixing holes and secure with
six screws (1) and Loctite 222E.
11.22 Install pan brake pivot (13) in pan brake shoe assembly (12) and install in tilt mechanism.
11.23 The remaining tilt mechanism components are installed after assembly of the balance
mechanism.

Balance mechanism

12 Assemble/install the balance mechanism as follows
12.1 If the bearing (11) has been removed from the mechanism housing cover (22) a replacement
may be installed without heating the cover. It is essential that a suitable press, fitted with a mandrel
adaptor and support ring to match the bearing, is used. Proceed as follows:
12.1.1 Remove all traces of adhesive from bearing and seating in mechanism housing cover.
Degrease bearing seating and outer race of bearing.
12.1.2 Apply Loctite 641 to outer race of bearing and press into mechanism housing cover,
ensuring bearing is correctly seated.
12.2 Assemble the pan mechanism
12.3 Assemble the tilt mechanism
12.4 Using Loctite 495, adhere buffer (33) to end washer (34).
12.5 Lightly lubricate components as follows:
12.5.1 All moving contact surfaces of the balance mechanism with grease GP50.
12.5.2 All bearings and shims with white bearing grease.
12.6 Install bearing shim (9) on RH side plate (7) and install in mechanism housing (17). Secure with
circlip (12).
(Fig 6.2):
(Para 10)
(Para 11).
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