Vinten Radamec 435H Pan & Tilt Head - Manual (Page 9)

V V i i n n t t e e n n B B r r o o a a d d c c a a s s t t L L t t d d . .
435H Technical Manual Page 8
against the spacer collar. Holding the ring of the coil at the coil end of the assembly,
tighten the two M5 grub-screws while ensuring that there is minimum end float, but
also ensuring that the coil is free to rotate on the shaft. Next the two M4 grub-screws
should be tightened and if the coil tends to bind, repeat the tightening procedure until
a satisfactory result is obtained.
Before fitting the coil locating arm, carefully squeeze the arms of the coil lug together
to reduce the free movement between the lug and the locating pin in the arm. On the
final assembly, the arm may be rotated slightly until the pin is at a point in the lug
where rotational movement of the coil is almost imperceptible. Note however, that
there must be a tiny amount of slack or manual operation of the head will not be
smooth.
The air gap between the rotor and the armature should be 0.2mm. It remains to re-
connect the clutch wires as appropriate and after re-assembly, the head may be
returned to service.
4.7. Routine Maintenance
The bearings are greased for life with Rocol MTS 1000, but the occasional
application of a little light grease such as Alvania, to the teeth of the timing belts will
help to ensure quiet operation. Ensure that no grease contaminates the clutches.
It may eventually be necessary to replace motor or tacho brushes, but this will only
be after a very long period of service.
Should any undue noise or vibration occur, it should be investigated immediately.