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5.1
Remove the tilt drag knob cap (23). Remove the screw (24) and pull off the tilt drag knob (16).
5.2
Remove three screws (25) securing tilt drag knob retainer (26). Remove the retainer, the tilt drag
knob boss (10) (complete with drag knob retaining shaft (14) and the two thrust washers and the thrust
race (12), noting orientation of components for assembly. The drag knob retaining shaft (14) is secured
in the tilt drag knob boss (11) with Loctite.
5.3
On the pan and tilt brakes, prise off the covers (22), remove the screws (21) and pull off the
knobs (20). Unscrew the two brake shafts (19 and 27), noting their orientation. Retain the friction
element (18) and spring element (17) from each shaft and the insert (28) from the end of the tilt brake
shaft.
5.4
Remove six screws (2) which secure the tilt drag cover/brake disc assembly (31) to the tilt drag
housing (1). Separate the cover and housing, remembering that a quantity of Vinten Fluid No. 3 is
contained in the housing. Discard `O' ring (32).
5.5
Remove two screws (36) securing drag shoe assembly (35). 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 (31) so that the cutout in the brake disc aligns with
the tilt brake plate (29). Pull the assembly off the tilt bearing housing (33). 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 (34) securing tilt bearing housing (33) to outrigger (9).
Remove and discard `O' ring (5). Remove bearing (7).
5.8
Remove three screws (30) securing tilt brake plate (29) to outrigger (9).
5.9
Pull out pan brake pivot (13) and remove pan brake shoe assembly (12).
NOTE:
Early brake shafts (to Serial No. 1382) are solid. Later brake shafts are fitted with spring
and friction elements (17 and 18) to improve performance. Early brake shafts should be
replaced by later brake shafts and spring and friction elements.
NOTE:
The design of the tilt brake cover/brake disc assembly changed from Serial No. 1197.
Ensure correct housing and ‘O’ ring are replaced.