Vinten Vision 6 Maintenance Manual page 26

Contents
16 To install the later knob
16.1 Turn the shaft clockwise, by hand, until the brake is applied.
16.2 Turn the shaft 60° counter-clockwise.
16.3 Push the knob onto the shaft at the 15° position.
16.4 Turn the knob clockwise to the horizontal position and push it inwards.
16.5 Screw in the securing screw (1). Do not overtighten.
17 Turn the knob clockwise and ensure that the brake is fully applied before the upper stop is reached.
18 Turn the knob counter-clockwise and ensure the brake is released before the lower stop is reached.
19 Re-adjust the position of the knob if necessary.
Drag control knob adjustment
NOTE: The pan and tilt drag control knobs will not normally require adjustment. However, in the
event that bedding-in of the mechanism occurs, the knobs should be reset.
The procedure shown is for the pan drag knob. The tilt drag knob is adjusted in a similar
fashion
20 The pan and tilt drag control knobs are set so that drag begins to be felt in the arrow area on the
indicator. The procedure for resetting is as follows
20.1 Release the pan and tilt brakes.
20.2 Turn the drag control knob
six turns.
20.3 Hold the indicator
the detent mechanism, or half the pitch of the control knob lobes.
20.4 Carefully tighten the grub screw (3), adjusting the position of the control knob as necessary so
that the grub screw seats correctly in a slot in the indicator and may be screwed fully home.
20.5 Decrease drag to zero.
20.6 Increase drag and ensure that drag begins to be felt in the arrow area on the indicator and that 9
on the indicator can be reached. Repeat the above procedure until this can be achieved.
(Fig 4.3):
(Fig
(2) until the grub screw
(1) stationary and rotate the control knob
First
Page
4.4):
(3) is accessible. Slacken the grub screw by
(2) 18° to the left. 18° is two clicks of
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