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SECTION 8
MECHANICAL ADJUSTMENTS
BALL SHOOTER GUIDE AND ENTK Y GATE
The required adjustment of the ball ~hooter guide varies wit.h
the pitch of the playfield and adjustment of the gate
IS
dependent on the
adjustment
of the guide. Games are
adjusted for a 3.5° playfield pitch at the factory. With the
game leveled as desired, proceed as follows:
I.
Place the ball on the playfield in the ball shooter lane.
2.
Pull back the ball shooter about halfway and release it.
The ball should go smoothly through the upper left lane.
3.
To adjust the ball shooter guide loosen the screw
accessible through the hole in the plastic.
a. If the ball chatters or strikes the post separating the
two upper left lanes, push the top of the guide
towards the center of the playfield and tighten the
screw securely.
b. If the ball strikes the edge of the playfield below the
lane, push the top of the guide towards the edgeof the
playfield and tighten the screw securely.
4.
Repeat steps 2 and 3 as required.
5. To ensure that the adjustment does not change with
play, the plastic may be temporarily removed and the
adjustable bracket secured with a 6x\t2 wood screw
through one of the additional holes.
6.
If the ball shooter guide has been adjusted, check the
ball entry gate and adjust if required.
SWITCHES
There are different types of switches used throughout the
game. The switch blades are made of a highly conductive
spring type metal in various lengths, thickness, and form.
Each switch is designed to satisfy specific operation
conditions such as bounce, current carrying capacity, speed
of operation, etc. Therefore, it is importan.t t~ replace a
blade with one of the same kind. When adjusting blades,
never kink or bend sharply. as this causes fatigue which leads
to fractures. Adjust blades with a sweeping, bowing motion,
with a switch adjusting tool or duck bill pliers.
When switch adjustments are called for, before forming
blades on any machine, check that the screws holding the
switch stacks are down very tight. This is recommended
because plastic spacers in the switch stacks will occasionally
shrink by drying out causing a poor adjustment.
With few exceptions, all blade type switches should have at
least 1/32 inch between the contact points and should follow
thru for at least 1/32 inch beyond the point at which the
contacts close. This follow thru action provides a wiping
motion between the contacts keeping them clean and
insuring good contact between the points.
To adjust blade type switches properly. first adjust the
actuating blade (usually, the longer one) with relation to the
part that it contacts. Then set the gap and follow thru by
adjusting the other blade.
SWITCH CONTACTS
With the exception of flipper button and end of stroke
switches, all blade switch contacts are gold-plated and must
NOT be burnished or filed. To clean the contacts, close them
on a clean piece of paper (e.g. business card) and wipe gently
until the contacts are clean. For the flipper button switches,
remove tarnish by filing with a contact file and then
burnishing. Do the same for the flipper end-of-stroke switch
contacts.
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Severely pitted contacts should be replaced as an assembly.
Switch contacts should only be adjusted when they cause a
malfunction or do not score properly.
ROLL-OVER LANE SWITCHES
Playfield lane switches are operated by a wire form or button
which is actuated by the ball. Before the switch is adjusted,
the wire should be centered in the playfield slot. The long
blade closest to the playfield should be adjusted to hold the
roll-over up. Check this condition with the playfield down.
Then, with the playfield up, adjust the short blade for 1/ 16
inch clearance. Depress the roll-over to its maximum
depression with the ball and check for 1/32 inch follow thru.
To prevent switch vibration a back-up blade is used. It
should be parallel and just barely in contact with the short
blade.
FLIPPER
Flippers are controlled by the flipper pushbuttons at each
side of the cabinet. Each coil consists of two windings: A
pull-in winding and a lighter gauge hold-in winding. The
hold-in winding is normally bypassed by a closed switch.
The pull-in winding produces a strong stroke. However, if
this winding were to remain energized by the player it would
overheat. To reduce this high current, the hold winding is
put in series with the pull-in winding by opening the end-of-
stroke switch.
This switch should be adjusted so that the long blade is
moved by the flipper pawl assembly for about the last
1/8
inch of movement. With the plunger completely depressed
manually, both switches should be adjusted for a 3/32 inch
gap. The short blade should have a 1/32 inch follow thru.
NEVER LUBRICATE THE PLUNGER.
The only
lubrication required is the link assembly with the special
coin machine lubricant.
Weak or sluggish flipper action can be due to dirty or
improperly adjusted contact points, worn out coil sleeve,
loose or broken bushing, incorrect coil or shorted diodes,
worn out fiber links, weak or broken return spring, loose
coil between the retaining bracket and coil stop, or loose
screws. Check all of the above to correct.
TILT SWITCHES
The plumb bob tilt can be made more sensitive by raising the
plumb bob on the shaft and less sensitive lowering the bob
on the shaft. The super slam tilt on the coin door is
adjustable. The normal adjustment is contacts open 1/32
inch. The playfield tilt is adjustable by forming the switch
contacts. Closing the gap will make the tilt more sensitive.
The ball roll tilt in the cabinet box can be raised (more
sensitive) or lowered (less sensitive) at the front pivot slot.
SECTION 9
SPARE PARTS
The parts used on the solid state FLASH are standard
Williams parts. Refer to Figure 14 for identification of
various playfield parts and adjustments.
PLAYFIELD CARE
The playfield on this machine has an improved finish with
excellent wearing properties. DO NOT clean the board with
water, water soap solutions, or harsh abrasives. Avoid using
steel wool, kitchen cleansers, or abrasive hand soap. Water
will weaken the adhering of the paint to the board and
abrasives shorten the board life.
A wax base cleaner with negligible abrasive qualities used
lightly, but frequently, will extend board life.
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