Read Sony JMECHA Service Manual online
— 5 —
Maintenance and inspection item
Tape running surface cleaning
Rotary drum cleaning and
degaussing
degaussing
Capstan bearing
Loading motor
Abnormal sound
Back-tension measurement
Brake system
Brake system
FWD/RVS torque measurement
Drive
mec
hanism
P
e
rf
ormance c
hec
k
500
a
a
—
—
✩
—
—
—
—
1000
a
a
✩
✩
✩
✩
✩
✩
✩
✩
✩
✩
✩
✩
✩
1500
a
a
—
—
✩
—
—
—
—
2000
a
a
✩
✩
✩
✩
✩
✩
✩
✩
✩
✩
✩
✩
✩
2500
a
a
—
—
✩
—
—
—
—
3000
a
a
✩
✩
✩
✩
✩
✩
✩
✩
✩
✩
✩
✩
✩
3500
a
a
—
—
✩
—
—
—
—
4000
a
a
✩
✩
✩
✩
✩
✩
✩
✩
✩
✩
✩
✩
✩
4500
a
a
—
—
✩
—
—
—
—
5000
a
a
✩
✩
✩
✩
✩
✩
✩
✩
✩
✩
✩
✩
✩
Remarks
Be careful not to attach oil
Be careful not to attach oil
Operating hours (H)
a: Cleaning, ✩: Check
2-3. Periodic Inspection List
Note 1:
When the machine is overhauled, replace the parts referring to the
above list.
above list.
Note 2:
Grease
• Be sure to use the specified grease only. (If grease of different
• Be sure to use the specified grease only. (If grease of different
viscosity is used, it can cause various troubles.)
• The grease used for bearings must not contain any dust or other
matter, otherwise excessive abrasion and seizure of the bearing
could occur.
could occur.
• A drop of grease means the amount of grease as shown in the
illustration, which is the amount that is attracted to the tip of a
rod of 2 mm diameter.
rod of 2 mm diameter.
• FLOIL grease (SG-941): Part No. 7-662-001-39
Fig. 2-2
2 mm diameter
Grease
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