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ROUTINE MAINTENANCE INFORMATION
• 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 using only a non-
abrasive sprayed liquid glass cleaner and a soft cloth. The playfield should be wiped off with a clean,
lint-free cloth. The game steel 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 any carnauba based 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.
• GLASS PARTS
Wear protective gloves and use both hands when carrying or moving parts made of glass. Glass
pieces can fly eight feet (two meters) or more from the point of impact.
SERVICE INFORMATION
Only trained personal should service the game. Always tum off power and unplug the game
before attempting any service!
• LUBRICATION
The main lubrication points of playfield mechanisms are the pivots. A medium viscosity oil (switch
target grease) is satisfactory for these devices. Because of the functional deSign (arm-actuated via
solenoid plunger operation), the pivot points of the Left and Right Slingshots require lubrication as a
regular servicing procedure. Lubrication to ensure proper operation also applies to the target blades
of the Drop Targets. MBI Instrument Grease, also known as Drop Target Switch Lubricant, with a
Williams' part number of E1165, is a recommended lubricant.
• SWITCHES
Standup Target and Slingshot Switches. To ensure proper 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.
Ripper Switches. End-of-Stroke switches are NORMALLY OPEN. The switch should close when
the flipper is energized. Only low computer current is carried through these switches. DO NOT FILE
or abrasively clean these switches I An E.O.S. switch failure does not harm the flipper. The game
notifies the operator that the switch is out of adjustment in the test report, but continues to play.
Rollover Switches. Roll the ball over the switch and listen for an audible click. The click indicates
the switch is good and adjusted properly. If you do not hear a click, the switch may be wearing out.
Magnetic Reed Switches. A magnetic reed switch must be tested using a ball. Enter the Switch
test and roll a ball over the switch. The corresponding number should show on the screen. If it does
not and the switch is located on the playfield, be sure it is secured against an insert with two rubber
grommets. If the switch is on a ramp, it must be in a holder. The switch must be flush against
whatever surface it is attached to; if it's not there may be inconsistencies in the way it operates.
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