Balancing The Head - Vinten FHR-35 User Manual

d a e H t T i l d n a
Installation

Balancing the Head

The FHR-35 is designed to allow the camera and payload to swing
about its own Centre of Gravity (C of G), as opposed to balancing
with the use of springs or cams. The camera and payload are
mounted onto the camera cradle so the resulting C of G aligns with
the tilt-axis pivot point, providing true balance.
When the head is correctly balanced, the robotic drives will need the
minimum amount of effort to move the head. A correctly balanced
head and payload can be set to any tilt position and the head will
maintain that position 'hands off'.
Setting the Fore/Aft Balance
Ensure that the head and camera cradle are level before balancing.
The camera and payload should be fitted on the cradle so that the
load is balanced. This can be achieved by moving the camera
forwards (Fore) or backwards (Aft) on the cradle.
CAUTION! Risk of damage to equipment. Be prepared to
prevent the camera and cradle from falling away suddenly.
1.
Engage the tilt lock. Loosen the bolts securing the camera to the
cradle just enough to be able to slide the camera and payload
backwards and forwards.
2.
Hold and steady the camera cradle, and disengage the tilt lock.
Carefully release the camera cradle and observe how it moves
and where it stops.
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n a P i c o t b o R 5 - 3 R H F
If the camera cradle stops in a horizontal position (camera pointing
directly forward) the balance is correct.
If the camera cradle tilts forward (points downwards) then the
camera must be moved towards the rear of the head (aft).