Maintenance - Teac A-4010GSL Service Manual

T PREVENTIVE MAINTENANCE
The inner mechanism of the TEAC A-4010GSL is designed so as to
require a minimum of maintenance. However, for optimum opera-
tion and long life, frequent cleaning of the tape path, sensing
post, tension arm, tape guides, heads, capstan and pinch roller
is a necessity. Do not neglect these easy procedures, if possi-
ble they should be done before each recording session and after
approximately 50 hours of playback use.
The following maintenance procedures are to be carried out 'after
parts replacement, after extended periods of use or at overhaul.
When installing new parts always clean the mechanism thoroughly
using the TEAC Cleaning Kit.
Fig. 7-1 Maintenance Equipment
DEMAGNETIZATION: Metal parts in contact with the tape will become
magnetized after long periods of use(except erase head). Magneti-
zation of record/playback heads causes noise in recording and re-
production. Heads should be demagnetized at every 50 hours of
use, and before any important recording is done. Refer to Operating
Instructions.
I2°OR MORE aa
Fig. 7-2 Demagnetization