Sony HDW-750 Maintenance Manual page 310

7-6. Replacement of AHC Roller Assembly for Video Head
3. Installing the cleaning assembly
(1) Insert the AHC roller assembly at the top of
the cleaning assembly in between the main
frame and drum support.
(2) Place the cleaning assembly under the
manual eject gear (A) and move it in the
direction of the arrow.
(3) Align the position-setting hole with the
position-setting pin and tighten the precision
screw.
The standard tightening torque value :
10 x 10 _2
N.m (1 kgf.cm)
n
Check that top of the cleaning arm (B) is posi-
tioned on top of the cam cleaning roller (white
part).
4. Operation check
Rotate the manual eject gear (A) (red gear)
clockwise and counter-clockwise several turns
and check that the AHC roller assembly comes
into contact with drum and is then detached.
Check that its height also changes at the same
time.
7-40
Main frame
Drum support
AHC roller
assembly
Cam cleaning roller
(white part)
Cleaning assembly
Precision screw
P1.4 x 3.5
Position-
setting
hole
Cam cleaning
roller
(white part)
Cleaning arm (B)
Position-setting pin
Manual eject gear (A)
Cleaning assembly
Cleaning
arm (B)
Top
HDW-750/750CE V1