Revox A77 Service Manual

4.6. Exchange of Reel Motor Bearings
— Remove reel motor per 3.6.
— Remove brass sieve A. Open clip B and retaining ring C
with retaining pliers, open only wide enough to pull
them away. Lower rotor with axis out of motor frame.
The belleville springs ( see parts list PL 8) remain on the
shaft.
Fig. 4.5-27
In addition to sleeves A there are washers D for height ad-
justment of the brake drum ( reel plate ). Be sure to put
these parts on the same motor axis at assembly.
The reel motor ball bearings shall exchanged only with
original bearings.
4.7. Lubrication
All bearings are lubricated for their life and should normally
require no service. They shall be exchanged only with
original bearings, in case of malfunction. If the capstan
axis is exchanged, the upper felt washer of sintered bearing
D ( fig. 4.5 — 26 ) is to be lubricated with some drops
MOBIL DTE extra heavy.
4.8. End- of- Tape Switch ( Operation: per 5.9.1. I
The light source of the optical end- of- tape switch can be
removed by lifting it upward.
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Revox A77 Specifications

General

Brand	Revox
Model	A77
Category	Tape Deck
Language	English