Thanks for all.
Bill and Barry

I solve the problem i reconnect the wires and it sound great.

Francisco

Barry

Yes i have the summit set...
And yes i found that the chuff sensor wipers are in the front axle.... and also i found what the problem was... one of the wires from the chuff wipers is cut.
Now i know why is no sound effect, perhaps someone can help me step by step where it connect. Thanks.
I tried to send a picture of the wiper but it said "upload folder is full". Is the left one.

Francisco

Thanks Bill

The Locomotive is running properly after i luv the tracks and change the power supplyand.
Then i cleaned the wheels and the tracks but the problem still persists. So i tried to check the chuff sensor.  I removed the bottom plate on the loco and saw the chuff sensor wipers on the rear axle, made they in firm contact with the axle.
Still no sound... can i try anything else?

Francisco

Thanks for your answer.
I use an oil lubricant on the tracks, and it start running normal again at 15% and increasing speed to 100%
But the sound effect is not working i think that is the chuff sensor from the locomotive that is failing... i will try to clean  the wheels and the track and level it.
I am worry about the sound. Can be repaired the chuff sensor? Can i order the sensor and repaired by myself ?
Is there an upgrade for the sound effect that i can buy?
Should i send the locomotive to Bachmann to be repaired?

I have problem with the sound effects of the locomotive 4:6:0 "summit pass". Months before i was told to test the tender without the locomotive, and the result was that it works fine, but that means that the locomotive is failing, also it start moving at 35% and at 60% to 100% it doesn't increase speed. When i first test it it ran well but now it slow down and sometimes it makes quick stops and start over running again.
What can i do to fix it or it must be done through a bachman warranty. If that is the case i bought it on ebay on August this year, it was brand new but, i am  from Chile. What must i send with the locomotive to use the warranty?.

Thanks.
I will try and then i get back to you.

i have done all... but no sound.
Perhaps i can test if the amplifier is working or if the locomotive is working properly?

I bought recently a train for the birthday of my wife, but when i tested it didn't sound. It move and also the light turns on, but no sound. I checked the wires and probed different position but no results. Changed the battery but nothing happend... Can anybody help me? how can i fix the problem?... I am from Chile so the biggest problem is i can't send it to USA for the warranty, because it is very expensive.