The Siren Board

Discussion of Outdoor Warning Systems
It is currently Mon Dec 09, 2019 8:35 am

All times are UTC




Post new topic  Reply to topic  [ 16 posts ]  Go to page 1 2 »
Author Message
PostPosted: Sun Jul 27, 2008 9:09 pm 
Offline
Registered User
Registered User
User avatar

Joined: Wed Oct 31, 2007 3:01 pm
Posts: 110
Thought some of you might want to see the inner workings of a 40+ year old Federal Q. This one has been restored, the motor cover and front grill are new. The rest of the siren is original. The stator and stator guard have been rechromed and the motor has been rebuilt. Will post assembled picture and video in the near future.

[ img ]


Last edited by Henry455 on Sun Aug 03, 2008 9:42 pm, edited 2 times in total.

Top
   
 Post subject:
PostPosted: Wed Jul 30, 2008 3:38 pm 
Offline
Registered User
Registered User
User avatar

Joined: Thu Oct 04, 2007 9:26 pm
Posts: 242
Location: Somewhere in Ohio
I was looking at the nameplate and does it say Federal Sign and Signal?


Top
   
 Post subject:
PostPosted: Wed Jul 30, 2008 6:05 pm 
Offline
High Leg
High Leg
User avatar

Joined: Mon Jan 15, 2007 3:57 am
Posts: 5305
Real Name: Jeb M
YouTube Username: Blue10AEmia
Location: Rhine, Georgia
I had no idea the clutch on these things were that simple.

How long does the friction disc in them last, considering all the torque that motor puts out.

_________________
Siren sales and service:
https://www.facebook.com/MccranieWarningSystems


Top
   
 Post subject:
PostPosted: Fri Aug 01, 2008 10:58 am 
Offline
Registered User
Registered User

Joined: Sat Jun 03, 2006 2:22 am
Posts: 2864
Location: Denver, CO
Their rotors are beautiful.

Magnified, the name plate appears to read:
Federal Sign and Signal
Corproation USA


Top
   
 Post subject:
PostPosted: Fri Aug 01, 2008 2:09 pm 
Offline
Registered User
Registered User
User avatar

Joined: Wed Oct 31, 2007 3:01 pm
Posts: 110
holler wrote:
I had no idea the clutch on these things were that simple.

How long does the friction disc in them last, considering all the torque that motor puts out.
There is very little wear on the friction disc, clutch engagement is almost instantaneous with almost no slippage. Thats one reason the surge amps on Q's can reach 250+ amps. That is the original friction disc which has lots and lots of miles on it and its still fine.
Not sure why Federal went to a screw type clutch and now a one way ball bearing sprauge type clutch. Maybe because of parts cost.


Top
   
 Post subject:
PostPosted: Sat Aug 02, 2008 9:20 pm 
Offline
Registered User
Registered User
User avatar

Joined: Fri Jun 20, 2008 2:00 am
Posts: 708
Location: Bourbonnais, IL
Hey Henry,
You took a picture of yourself, check the rear housing, your reflection. :wink:

_________________
So, apparently, I like Federal Signal...


Top
   
 Post subject:
PostPosted: Sat Aug 02, 2008 10:37 pm 
Offline
Registered User
Registered User

Joined: Sat Jun 03, 2006 2:22 am
Posts: 2864
Location: Denver, CO
Federal Signal fan wrote:
Hey Henry,
You took a picture of yourself, check the rear housing, your reflection. :wink:
Yes. We always look for the photographer's reflection in all kinds of photos.

I would leave the stator grill off.


Top
   
 Post subject:
PostPosted: Sun Aug 03, 2008 9:41 pm 
Offline
Registered User
Registered User
User avatar

Joined: Wed Oct 31, 2007 3:01 pm
Posts: 110
Robert Gift wrote:
Federal Signal fan wrote:
Hey Henry,
You took a picture of yourself, check the rear housing, your reflection. :wink:
Yes. We always look for the photographer's reflection in all kinds of photos.

I would leave the stator grill off.
Leaving the Stator guard off would not be a good idea in my experience. The rotor is free to rotate at all times and when completely assembled with motor cover and grill, because of its weight, you must handle it by the stator housing, the motor cover is only held on by 3 small machine screws. I can tell you from experience, it will bite when least expected, the leading edges of the chopper have a knife edge. Watch the following test video I did today and you can see how easily the rotor will spin.

Rebuilt Q


Top
   
 Post subject:
PostPosted: Sun Aug 03, 2008 11:27 pm 
Offline
Registered User
Registered User

Joined: Sat Jun 03, 2006 2:22 am
Posts: 2864
Location: Denver, CO
Henry455 wrote:
Leaving the Stator guard off would not be a good idea in my experience. The rotor is free to rotate at all times and when completely assembled with motor cover and grill, because of its weight, you must handle it by the stator housing, the motor cover is only held on by 3 small machine screws. I can tell you from experience, it will bite when least expected, the leading edges of the chopper have a knife edge. Watch the following test video I did today and you can see how easily the rotor will spin.
I have worked on Qs.
Yes, you want the grill on when handling. But once on display, I would remove it. Looks much different without the grill!
It would be louder, too.
People must be warned not to get bitten.
I was slightly bitten while molesting an air raid siren in Yantai, China.
Trying to get it to growl.


Top
   
 Post subject:
PostPosted: Sun Aug 03, 2008 11:38 pm 
Offline
Registered User
Registered User
User avatar

Joined: Tue Aug 01, 2006 1:03 am
Posts: 2260
Real Name: Jim
Location: ;) or :D are implied
yep, you definitely have a different clutch design on that than my model 76. maybe if I can borrow a camera I can post the photos of my disassembled siren for comparison.


Top
   
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 16 posts ]  Go to page 1 2 »

All times are UTC


Who is online

Users browsing this forum: No registered users and 4 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to: 

Powered by phpBB® Forum Software © phpBB Limited