Bally BONANZA Service Manual & Parts Manual

Contents

Bally BONANZA Service Manual & Parts Manual Manual pdf 10 page image

MAGIC SQUARESMAINTENANCEWIPER DISC REPLACEMENTSWhen replacing A, B, C, D wipers, position allwiper discs in the home positions, so index pins arebreaking contact of homing switches. (Home position wiper discs will have the index notch positionednext to red dot and or part no. on contact plate, seeillustration).COUPLER PIN ASSEMBLY & PLEXIGLASSNUMBER DISC ALIGNMENTIndex A, B, C & D wipers to home positions. With"E" wiper drive arm (vertical center arm) indexedin downward position. (Fig. A) Turn off power togame. Remove (2) Phillips Head Hold Down screws(Right edge of unit) (see illustration). Swing outhinged unit and remove white plastic insert. Nextremove 4 Phillips Head Screws, which will enableexcess to coupler pin assemblys, just behind woodeninserts.In a homed position all 4 coupler pins should be ata 12:00 o'clock position, See Illustration. If adjustment necessary, loosen set screw (via 1/16"Allen Wrench).__and adjust. Reverse procedure forassembly."E" LINK ARM & CONTACT PLATEADJUSTMENTSIndex "E" center vertical number strip to bottomposition (top center number in magic squares unitshould be "5"). Loosen the 4 contact plate screwsand also the 2 screws in adjustable link. Center@@ ooI f ' tuHOLDDOWNSCREWS �•@®wiper contact points to corresponding contact pointson plate by sliding plate up or down, then tighten 4screws. Next adjust numbers on "E" plexiglassstrip to perspective panel holes, tighten 2 screwsin adjustable link. , again top number in "E" stripshould be "5"."E" WIPER DRIVE ARMADJUSTABLE2 SCREWSALWAYS GIVE MODEL AND PART NO. WHEN ORDERING SERVICE PARTS9