Balance Mechanism - Vinten Vision 5LF Maintenance Manual

Contents
5.4 Remove six screws (1) which secure the tilt drag cover/brake disc assembly (30) to the tilt drag
housing (2). Separate the cover and housing, remembering that a quantity of Vinten Fluid No. 3 is
contained in the housing. Discard 'O' ring (31).
NOTE: The design of the tilt drag cover/brake disc assembly changed from Serial No. 1288.
Ensure correct housing and 'O' ring are replaced.
5.5 Remove two screws (35) securing drag shoe assembly (34). Remove drag shoe assembly, drag
actuator shaft (3), washer (4) and 'O' ring (5). Discard 'O' ring.
5.6 Turn the tilt drag cover/brake disc assembly (30) so that the cut-out in the brake disc aligns with
the tilt brake plate (28). Pull the assembly off the tilt bearing housing (32). Note the orientation of the
omniseal (8), with the open side facing towards the drag shoe. Remove and discard the omniseal.
5.7 Remove screw (6) and two screws (33) securing tilt bearing housing (30) to outrigger (9).
Remove and discard 'O' ring (5). Remove bearing (7).
5.8 Remove four screws (29) securing tilt brake plate (28) to outrigger (9).
5.9 Pull out pan brake pivot (13) and remove pan brake shoe assembly (12).

Balance mechanism

WARNING!: The balance mechanism spring tension is preset. Do not remove or
dismantle the balance mechanism unless necessary.
6 To remove the balance mechanism, proceed as follows
6.1 Remove the platform
6.2 Remove the tilt mechanism and mechanism housing cover
6.3 Remove needle roller (16).
6.4 Using circlip pliers, remove Spirol ring (15) from groove in mechanism housing assembly (17)
and allow it to rest on the neck of the balance knob assembly (14).
6.5 Unscrew and remove the balance knob assembly (14) together with Spirol ring (15).
6.6 Remove the thrust race and two thrust washers (13), noting orientation of components for
assembly.
6.7 Remove cap (36) from mechanism housing assembly (17) to gain access to balance mechanism
screw (35)
6.8 Undo screw (35) until balance mechanism tension is just relieved.
6.9 Using circlip pliers, release circlip (12) securing RH side plate (7) in mechanism housing
assembly. Carefully pull RH side plate out of mechanism housing assembly. Retain shim (9) and shims
(29).
(Para 3).
First Previous
Page Page
(Fig 6.2):
(Para 4).
Next Previous
Page View
25