Williams Electronics WHIRLWIND - Maintenance Information

MAINTENANCE
INFORMATION
Regular maintenance
is
essential to
a game's
continuing contribution to the operator's earnings.
LU
B
R l
C ATI O N
The
two
main
lubrication points
of
the
Eject
Hole
mechanism are the pivots
for the Eject
Arm.
Note
that
the
mechanism
of the
Cellar
Kickbig
Arm
Assembly
is somewhat similar to the
Eject Hole
Device;
it
has
the
same
lubrication
requirements
as the
Eject Hole Device. A
medium viscosity
oil (20W
or 30W)
is
very
satisfactory
for these devices.
Because
of
the functional design
(arm-actuated
via
solenoid
plunger operation),
the pivot
points
of
the
Left
and Right
Kickers
("Slingshots")
all
require lubrication as a regular
servicing
procedure.
Mechanical adjustments
are simple
and
somewhat
similar to the Eject
Hole mechanism.
These
mechanisms
should
also
be checked
for
proper fit
(snugly tight) where they
attach to the
playfield.
Lubrication
to
ensure
proper operation also
applies
to the
target blades
of the 3-Bank
and 1-Bank
Drop
Targets.
MBl Instrument
Grease,
also
known
as
Drop Target Switch Lubricant,
with
a Williams’
part
number
of
20-8886,
is
a
recommended
lubricant.
SWITCH CONTACTS
For
proper game
operation,
switch
contacts should be
free of dust,
dirt, contamination,
and
corrosion.
Blade
switch
contacts
are
plated
to
resist corrosion.
Cleaning
blade switch
contacts
requires
gentle
closing
of
the contacts
on
a
clean
business card or
piece
of
paper,
and
then
pulling the
paper about 2
inches,
which
should
restore
the
clean
contact surface. Adjust the
switch contacts
to a
1/16-inch
gap.
Flipper
button switches
and the
End
of
Stroke (EOS) switch
on the
flipper tend
to suffer
from
pitting
caused
by the
high current in this
circuit.
Weak or “slow”
flipper action is the
result of
this
pitting.
Carefully
restore
the
surface
of the
flipper
switch contact with
a very fine contact
file; finish
the surface
restoration with
a
contact burnishing tool.
This
should
bring
the
flipper
action
back to
its usual
‘snappy’
action.
l
CLEANING
Good
game
action
and
extended
playfield
life
are
the
results
of regular
playfield cleaning.
During
each
collection stop,
the playfield glass should
be
removed and thoroughly
cleaned
and the
playfield
should
be
wiped
off
with
a
clean,
lint-free
cloth.
The
game balls
should be cleaned
and inspected
for
any chips, nicks,
or
pits.
Replace
any
damaged
balls
to prevent
playfield
damage.
Regular, more
extensive, playfield cleaning is recommended. However,
avoid
excessive
use of
water
and
caustic or
abrasive
cleaners
because they
tend
to damage
the
playfield surface.
Playfield
wax
or
polish
may
be
used sparingly, to
prevent a buildup on
the playfield
surface.
Do not
use
cleaners
containing
petroleum
distillates
on
any
playfield
plastics because
they may
dissolve
the
plastic
material
or damage
the artwork
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