Sony HDCAM HDW-F900R Maintenance Manual page 309

6. Installing the brush assembly
(1) Install the new brush assembly tentatively to
the brush support with the screw as shown.
(2) Move the brush base in the direction of the
arrow. Check that the brush touches against
the slip ring correctly. Then tighten the other
screw tentatively.
(3) Push the brush base further in the direction of
arrow A, and tighten the screws that are
tentatively tightened in steps (1) and (2).
The standard tightening torque value :
20 x 10 _2
N.m (2 kgf.cm)
(4) Check that the two brushes touch to each of
the three grooves of the slip ring respectively.
n
Once the above steps (1) to (3) are completed, the
height of the brushes and the contact pressure of
brushes against the slip ring will be automatically
adjusted.
7. Installing the brush cover
(1) Adjust the brush cover so that the slip ring
shaft comes to the center of the top of the
brush cover and tighten the two precision
screws.
The standard tightening torque value :
10 x 10 _2
N.m (1 kgf.cm)
(2) Coat the two precision screws with locking
compound.
8. connecting the connector to brush
assembly
Connect the connector that is removed in step 1 to
the connector on the brush assembly board.
n
Check that the brush assembly has moved out of
the correct position.
HDW-F900R/V1 (E)
Top view
First, tighten this
screw tentatively.
Brush base
Brush
Slip ring
Fig.1
Side view
Brush assembly
Brush support
Brush cover
Center
Slip ring shaft
Later, tighten
this screw tentatively.
A
Fig.2
Slip ring
P2 x 2
Precision screws
coated with
locking compound
Brush cover
7-37