(Topic ID: 248051)

Gottlieb Sys 3 Coil Blowing Fuse (But Delayed)

By Kyrosfear

6 months ago

Topic Stats

  • 4 posts
  • 3 Pinsiders participating
  • Latest reply 5 months ago by 0geist0
  • No one calls this topic a favorite


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#1 6 months ago

Short: I have a Frank Thomas Big Hurt that is blowing a fuse (F24; 1/2amp, SB), but it takes time (i.e., approximately 5-10 coil activations) before it blows.

Long: The shooter lane of this game has a ramp that raises during mulitball to allow the additional balls to travel to the back of the playfield before they enter play. Each time one of these additional balls is loaded into the shooter lane, the coil fires to raise the ramp. It is a four-ball multiball, so the coil fires three individual times during each multiball session. After approximately 5-10 individual coil activations, the fuse blows. The coil is an A-26450 and ohms out at 43 ohms, which is appropriate.

I would appreciate any advice/help on where to look.

1 week later
#2 5 months ago

I am still looking for some help with this one.

#3 5 months ago

Probably the sheath inside the coil who is deformed by coil heating...try by manual moves if the plunger slide easily in the sheath coil, also test all respective mechanical parts attached to this ramp, clean them and grease them ...also put a drop of oil inside the sheath, be care to not put to much oil inside the coil.

#4 5 months ago

New plunger and sleeve, no oil.

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