Notes On Tightening Screws - Sony DSR-300 Service Manual

2-5. NOTES ON TIGHTENING SCREWS

1. Attaching Screw to the Chassis
This unit has a small and light design, and uses numerous
M1.4 x 2.5 (1.4 mm diameter), M2 x 5, and M2 x 6 (2 mm
diameter) screws.
When tightening the above screws, be very careful of the
tightening torque. In order to prevent the chassis's screw-
hole from damage against the excessive tightening torques,
be sure to use the following torque screwdriver and torque
screwdriver bits.
Tools
Torque screwdriver
Torque screwdriver bit (For M1.4)
Torque screwdriver bit (For M2)
Screws
For M1.4 screws
For M2 screws
The above torque screwdrivers can be used for both M1.4
and M2 screws.
2. Screwlocking of Tape Guide's Upper Flange
When performing the tape guide height adjustment during
tape path adjustment, use the following tape guide
adjustment screwdriver.
After adjusting the tape guide height, apply screwlocking
compound to the upper flange of tape guide and tapped
section of guide shaft screw.
Tools
Tape guide adjustment screwdriver J-6082-362-A
Screwlocking compound
(Three-bond 1401B)
Point to notice when applying the screwlocking compound:
Do not apply screwlocking compound to the guides along
the tape running surface.
2-10
Sony Part No.
J-6325-400-A
J-6325-110-A
J-6325-380-A
Tightening torque
0.09 ± 0.01 N.m
(0.9 ± 0.1 kgf.cm)
0.19 ± 0.03 N.m
(1.9 ± 0.3 kgf.cm)
Sony Part No.
Upper flange
7-432-114-11
Tape guide adjustment
screwdriver
Guide shaft screw
Upper flange
Screwlock
DSR-300/P(E)/V1