Servicing And Maintenance - Teac A-3440 Service Manual

9. SERVICING AND MAINTENANCE
9-1 CLEANING
TEAC TZ-261A for Head cleaning and TZ-261B for Rubber
cleaning should be used. Use as follows:
TZ-216A TZ-261
Motor pulley Pinch roller rubber
Heads, Brake drums Capstan belt
Capstan shaft Counter belt
Tape run guides
9-2 LUBRICATION
Under normal operating conditions, lubrication is required
only once each year. Before lubricating, clean the drive belt
and drive pulley... etc. Operate the deck for 30 minutes to
1 hour immediately prior to oiling. After oiling, keep the
deck in the upright position for 3 to 4 hours to allow
thorough absorption of the oil.
Approximately once each year or after 2000 hours of use,
apply TEAC TZ-255 or equiv. Lubricating Oil to the fol-
lowing places only;
— Pinch roller shaft ........... 1 drop
— Capstan shaft............. 2 drops
(Remove the dust cap for access to the oil pit)
NOTE: Excessive oiling will scatter oil inside the deck.
This oil will cause drive belt slippage and other
difficulties. Check for slippage and clean all parts
inside the deck before operating after lubrication.
Check for oil emission after operation and before
returning deck to the customer.
PINCH
ROLLER
DUST OIL SYRINGE
CAP
Gy
PINCH ROLLER
SHAFT
CAPSTAN pf
SHAFT e& ny
Fig.9-1 Capstan Shaft and Pinch Roller Shaft
Oiling Points
Fig.9-2 T2Z-255 Oil Kit
Fig.9-3 TZ-261 Tape Recorder Kit
9-4 DEMAGNETIZATION OF HEADS
If the Record or Playback heads become magnetized, noise
will increase and tonal fidelity will deteriorate. For this
reason it is advisable to use non-magnetic tools when work-
ing near the heads. If the heads have had any contact with
current or magnetized metal parts, demagnetize them with
a TEAC E-3 eraser or equivalent.
Fig. 9-4 TEAC E-3
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