Sony APR-5001 Series Operation And Maintenance Manual page 173

STEP 14
.
Observe
spring scale and pull in a coun
-
Take
reading
at
average point
when hub
starts to
turn .
REEL
MOTOR
HEIGHT GAUGE BLOCK
terclockwise direction
.
HUB REEL ASS ' Y
\
2 mm
HEX
WRENCH
STEP 15 Verify brake torque is 80
g +
/
—
40 g .
/
B
V
REEL MOTOR
MOUNTING PLATE
SPRING ADJUSTMENT
HOLES
REEL MTR
7
Figure 6
-
8
-
2 .
©
o
6.5
.
5 Renew Time Meter
O
When the time
meter on the power supply has reach -
ed its maximum reading (
5000 ) ,
replace it with
a new
one or switch the two leads which connect to the
time
meter . This meter will
operate in the reverse direc -
tion counting down from
5000 hours to zero
.
See Ap
-
pendix C for the Molex pin removal tool number
.
( See
Thble 6 - 2 ,
Preventive Maintenance
.
)
Procedure to Reverse Time Meter
o
Figure 6
-
8
-
1
.
Reel Motor Brake
Assembly Spring
Adjustment
a
u
a
c
NOTE : In case of
using the Brake torque hub
(
#
9
-
911
-
041
-
01 ; 50 mm DIA . ) , you should
adjust
the brake torque with two
times
numbers of the above specifications as
shown .
360 g +
/ —
80 g
80
g +
/
—
40
g
STEP 1 Open the ALN door and turn the power
switch OFF
.
u
g
STEP 2 Remove the two small screws .
The panel
is hinged
on the bottom .
2
C
b
<
a
>
720
g
+ /
—
160 g
> 160 g +
/ —
80 g
a
STEP 3 Follow the two wires which connect to the
time
meter .
<
c
c
2
STEP 4 Remove the Molex connector from the CSL
and
reverse
the wires
.
<
6.5
.
4.2 Reel Table Height Adjustment
U
c
2
<
STEP 1 Remove
upper rear cosmetic panel
.
STEP 5 Re - install the Molex connector and the
hours meter will run in the reverse direc -
tion counting from 5000 hours to
zero .
2
u
i
-
2
STEP 2
Place the Reel Motor Height Gauge
Block
on
the Reel
Motor
Mounting
Plate ( as
shown in Figure 6
-
8
-
2 . )
<
STEP 6 Re
-
install the two
screws which attach
the front panel of the power supply
.
NOTE : The specification of reel table
height states
that the distance between the reel hub
assembly and the test
jig shall be
0 . In
other words , no gap should be present
between the reel hub
assembly and the
test
STEP 7 Turn the power switch ON
.
Jig
.
If the
specification is not met , loosen
the
set screw with a 2 mm
hex wrench
and adjust height accordingly ( Refer
to Figure 6
-
8
-
2
.
)
STEPS
6 - 9