Tightening Torque And Handling Of Washers - Sony DSR-2000 Service Manual

7-1. General Information on Parts Replacement and Adjustment

7-1-4. Tightening Torque and Handling of Washers

1. Screwdrivers and Tightening Torque of Screws
Many M1.4 and M2 screws are used in the DSR-2000/2000P.
Be sure to use the authorized tools to loosen and tighten them.
In addition, use a torque screwdriver to tighten the screws with the specified tightening torque.
Torque screwdriver bit (for M 1.4) :
Torque screwdriver bit (for M 2) :
Hexagon bit (for torque screwdriver) :
Torque screwdriver (for 3 kgf.cm) :
Tightening torque
For M1.4 screw :
For M2 screw :
[Reference] [Reference]
[Reference] [Reference] [Reference]
The DSR-2000/2000P uses many small screws that easily fall inside the machine when removing and re-
assembling parts. To avoid this risk, magnetize the screwdriver bit slightly enough to prevent small screws from
falling into the machine. However, when installing the drum assembly, never use a magnetized screwdriver.
2. Stop Washer and E ring
Do not use old stop washers and E rings that have been removed.
Always use new stop washers and E ring to attach the parts.
Stop washer (1.5) :
Stop washer (2.3) :
E ring (2.3) :
Cotter polyethylene washer :
Polyslider washer (Ø2.0) :
How to Remove the Stop Washers and E ring
(a) Use the following fixtures to remove stop washers and E ring.
Washer extracting fixture (A) : J-6082-234-A
n
. Be careful not to drop the stop washers and E ring inside the DSR-2000/2000P.
. Be careful not to let tools touch other parts, especially the drum.
How to Attach the Stop Washers
Use the following tools to attach stop washers :
Washer mounting fixture Ø1.5 : J-6082-231-A
Washer mounting fixture Ø1.2 : J-6082-232-A
Washer mounting fixture Ø0.8 : J-6082-233-A
(a) Insert a stop washer to the tip of the washer
mounting fixture.
(b) Set the thin tip of the mounting fixture
perpendicularly to the top of the shaft to
which the stop washer is to be installed.
(c) Press the thick portion of the fixture down-
ward to install the stop washer onto the shaft.
7-2
J-6325-110-A
J-6325-380-A
J-6326-120-A
J-6325-400-A
0.1 N.m (1.0 kgf.cm)
0.2 N.m (2.0 kgf.cm)
3-669-465-01
3-669-596-01
7-624-105-04
3-321-813-01
3-701-437-01
Washer mounting ficture
Stop washer
Stop washer
DSR-2000/2000P