Vinten Vision 250 E Maintenance Manual page 21

Contents
21.1 Turn the tilt drag
knob (4) counter-clockwise until the head falls away from horizontal under the weight of the camera.
21.2 Release the slide plate clamp
horizontally. Apply the slide plate clamp (1).
21.3 Turn the balance knob
and released.
NOTE: If the digital balance setting of the particular payload is known, press the switch
turn the balance knob until the digital display
21.4 Repeat Para 21.2
set at any angle from +90° to –90° without falling away or springing back. Re-apply the centre lock
and the tilt brake (14).
NOTE: Maximum tilt angle is less than 90° for heavy payloads with a high C of G - see balance
graph (Fig 2.3).
21.5 Press the switch
particular payload.
Locking the platform
22 The centre lock mechanism is operated by a slider on the rear of the head. To engage the lock, hold the
platform in the horizontal position and push the slider
23 To release the centre lock, push the slider
Pan and tilt brakes
24 Friction brakes on each axis allow the head to be locked at any chosen position. The operating knobs
for the pan brake (15) and tilt brake
25 To apply the brake, turn the knob fully clockwise. To release the brake, turn the knob fully anti-
clockwise.
Pan and tilt drag
26 Both the pan and tilt mechanisms incorporate the Vinten thin film (TF) system to ensure smooth
movement of the camera about these axes and are fitted with control knobs to adjust the drag setting.
(10) to zero. Release the centre lock
(1) and slide the camera backwards or forwards until it balances
(4) clockwise until the camera does not fall away when the head is tilted
and Para 21.3 until perfect balance is achieved, when the camera will remain
(9) and make a note of the digital display (8). This will facilitate rebalancing this
(5) to the right.
(14) are fitted on the left-hand side of the head.
First
Page
(5) and the tilt brake (14). Turn the balance
(8) shows that setting.
(5) to the left.
Previous Next Previous
Page Page View
(9) and
(5)
21