Solenoid/electric motor question.

[JJZ 109]

OK, so it 's not a tractor question but I couldn't find any bucket truck specific forums. Besides, guys here own all kinds of equipment and have all kind of experiences. :thumbsup:
Anyway, I have an Altec AT200A aerial lift. Hydraulics operated by an electric motor. Yesterday it quit working. Messed with batteries, made sure they were charged, etc. Even replaced one of the two. Upon further inspection with the arrival of a helper I could hear the solenoid click on the electric motor (similar to a starter) when he pushed the dead man switch. A rap with a ratchet would make the motor spin. Without tapping it, just a click.
Today I swapped out the solenoid as the old one didn't look that great from being outside with only a rudimentary cover. Same result as before. Just a click until I rapped on the solenoid or the motor. Is this an indication of something heading south in the motor? For the record, I ordered a complete unit next day air (pump/motor/solenoid) today from Altec because I need this truck for work. They certainly don't give that away!:moneybag:
I plan on taking the motor to a local rebuilder once the new one is on so that I'll have a spare. So I guess the question remains, is this likely an electric motor issue?

 

[Leejohn]

Sounds like a bad ground.

 

[Soundguy]

if rapping the motor mad eit work.. take it to the dr.. might need brushes. he have electric over hyd lifts on service trucks at work.

ton of solenoid and starter like motors..

 

[JJZ 109]

if rapping the motor mad eit work.. take it to the dr.. might need brushes. he have electric over hyd lifts on service trucks at work.

ton of solenoid and starter like motors..

Yup that's the plan. After talking with the Altec guy today I discovered that the unit was made in August of 1997, same year as the truck that it's on. No idea if it's the original electric motor and pump or not. So I ordered the whole unit. Will have the old one rebuilt and keep it as a standby. That way it won't cost me $949 next time! :thumbsdown: Of course $172 of that was the next day air shipping option.

 

[Zebrafive]

I agree needs brushes. If rapping gets it running. Brushes may be at the end of the life and too short to make good contact. Rapping sometimes jars them a little tighter and they work for a while.

 

[Soundguy]

yep. i'd at least pop it apart for a looksee. but that's where i'd be looking. brushes and holders.