Mk 5 Pan & Tilt Head Maintenance Manual
17
Balancing head/camera
6
To balance head/camera release and stow locking stays at the same time restraining any excessive
movement of the head by holding the pan bar. Centralise the camera to the level position and under restraint
allow camera to tilt. When tendency to fall away in one direction is noted, adjust C of G as follows:
6.1
Ensure friction and lock of tilt assembly are released.
6.2
Using Allen key slacken off three socket headed screws just sufficient to permit movement of
wedge adaptor relative to head (Fig 2.2). If tendency of camera is to tilt forward turn thumb nut at rear of
head clockwise to bring wedge adaptor rearward. Counter clockwise movement of thumb nut is
required to move head forwards.
6.3
When balance is achieved tighten socket set screws and stow Allen key in its position on the
head platform.
7
If, when adjustments outlined in 3a to e have been carried out, the camera falls forward and backward
heavily, the C of G of the camera is too high for the cams fitted. If the camera centres heavily the centre of
gravity is too low for the cams fitted.
Adjustment of controls
8
Controls are adjusted as follows:
8.1
Tilt friction is applied by turning thumb nut clockwise.
8.2
Tilt lock is applied by moving lever rearwards.
8.3
Pan friction is applied by turning thumb nut clockwise.
8.4
Pan lock is applied by moving lever from right to left.
NOTE:
It is essential to ensure that socket set screws are completely tight after adjustments are
carried out.
NOTE:
It is necessary to ensure that the locking plates are in the locked position whenever:
1. An out of balance load is put on or taken off the head.
2. The camera is out of use for any prolonged period.
3. The mounting and camera are moved over long distances when in studios or vehicles.