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IX. ROUTINE MAINTENANCE ON LOCATION:
After successful completion of the Self Diagnostic Test Procedure, set the game up for play. Exercise each roll-
over. thumper bumper, slingshot. etc., with a game ball until each switch assembly on the Playfield has been
checked for proper operation. If actuating a switch assembly results In intermittent or no response, clean
contacts by gently closing them on a clean business card or piece of paper and wiping until the contacts are
wiped clean. Re-gap,
if
necessary to 1/16". Do not burnish or file gold plated switch contacts.
X. SWITCH ASSEMBLY ADJUSTMENTS:
GENERAL:
All switch assemblies consist of leaf springs, contacts, separators, plastic tubing and screws to hold them
to the mounting surface. Before attempting to adjust a switch assembly, make sure that these screws are tight.
If not. tighten screw closest to the contact end of the leaf spring first. This will prevent the assembly from being
secured in such a manner that the leaf springs tend to fan out. In general. all leaf springs are adjusted for a
1/16" gap between contacts in the open pOSition and .010" over-travel or wipe in the closed position. All contacts
should be free of dust and dirt. Contacts, with the exception of the flipper button switch assemblies, are plated
to resist corrosion. Filing or burnishing breaks the finish and encourages corrosion. Clean contacts by gently
closing them on a clean business card or piece of paper and wiping until the contacts are wiped clean.
For the flipper button switch assemblies ONLY: Tarnish can be removed with a contact file followed by a burnish-
ing tool. Severely pitted contacts must be placed and adjusted only when they are found to be a source of
game malfunction.
XI. SERVICE HINTS:
The Bally Playfield has an improved tuff-coat finish with excellent wearing properties. Life expectancy of the
Playfield as well as play appeal, can be extended by periodic cleaning.
DO:
Bally recommends you clean your Playfield with Wildcat #125 (Wildcat Chemical Co., 1349 East Seminary
Drive, Fort Worth, Texas 76115; Phone 1-817-924-8321). Wildcat #125 is a combination cleaner and polish.
Bally has tried and tested this product and found it to be very effective. If Wildcat #125 is not available, Bally
suggests you ask your distributor to order it. Inspect and hand polish the ball in a clean cloth. A chipped ball
must be replaced. It can ruin the finish on the playfield in a short period of time.
DON'T:
Use water in large quantities, highly caustic cleaners, abrasive cleaners and cleaning pads on the play-
field, or allow a wax or polish build up. Waxes yellow with age and spoil appeal.
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