Section
IV
Maintenance
Service
lnstrudions
SECTION
IV
MAINTENANCE
LUBRICATION
WALLBQX
Oil
the locking
bar
shaft assembly,
actuating
lever,
actuating
lever
pin,
connecting
arm
shaft, coin
gate
shaft, accumulator wheel shaft, escapement
pawl
shaft,
motor
armature
shaft and
motor
main shaft
with
SAE
No.
10
acid free and wax free o,il. (See
Figure
28.)
Lubricate the
motor
gears and the levers, cams
and
plate,
shown
in
Figure
28,
with
Lubriplate
No.
·105.
IMPULSE
STEPPER
Lubricate the ratchet shaft
bearing
and
operating
arm
bearing
with
SAE
No.
10
acid free and wax free
oil. (See
Figure
27
.)
{i
I
CLEANING
CONTACT
POINTS
All ·electrical contacts
in
the
wall
box
are
of
solid
silver construction.
To
clean, use
carbon
tetrachloride ·
and a
dry
·
doth.
Do
not
use abrasive materials for
cleaning.
The
contact
points
on
the impulse
stepper
should
be
cleaned
in
the same
manner.
COIN
SELECTOR
MECHANISM
Never
oil
the
coin selector mechanism.
Wipe
it
dean
with
a
dry
cloth. Abrasives may
be
used if
necessary.
REMOVE
SCREW
AND
APPLY SAE
NO.
10
OIL
TO
RATCHET
SHAFT BEARING.
OPERATING ARM BEARING
l!~-r--~i:==~~---------------SAENo.10
20
Note
Excessive
oil
will
endanger
praper
warlcing
ol
this
IMPULSE
STEPPER
Figure
27-Model
219
Impulse
'Stepper
Lubrication
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