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Posted by on May 1, 2008, 9:05 pm
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I'm trying to wire a Freightliner to operate the tarp motor.
The diagram I was given, suggests the machinist who provided
it, is not or should not be looking to quit his day job:)
jpg of his sketch has been ul-ed to the dropbox @ 1Schem.jpg
Switch I was directed to purchase, will switch polarity, but
will not carry the load.
Relays are starter solenoids.
Thanks
gary
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Posted by Ken Sterling on May 1, 2008, 9:37 pm
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>I'm trying to wire a Freightliner to operate the tarp motor.
>
>The diagram I was given, suggests the machinist who provided
>it, is not or should not be looking to quit his day job:)
>
>jpg of his sketch has been ul-ed to the dropbox @ 1Schem.jpg
>
>Switch I was directed to purchase, will switch polarity, but
>will not carry the load.
>
>Relays are starter solenoids.
>
>Thanks
>
>gary
Pix didn't seem to make it.... did you follow the "rules" about having
a text file also???
Ken.
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Posted by Karl Townsend on May 2, 2008, 12:22 am
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> >I'm trying to wire a Freightliner to operate the tarp motor.
>>
>>The diagram I was given, suggests the machinist who provided
>>it, is not or should not be looking to quit his day job:)
here's the link
http://metalworking.com/Dropbox/1Schem.jpg
This is just a concept not an electrical drawing. I'll let the electical
wizards on this group help you out.
karl
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Posted by Don Foreman on May 2, 2008, 1:45 am
Please log in for more thread options On Thu, 01 May 2008 19:05:20 -0600, gary556@hotmail.com wrote:
>I'm trying to wire a Freightliner to operate the tarp motor.
>
>The diagram I was given, suggests the machinist who provided
>it, is not or should not be looking to quit his day job:)
>
>jpg of his sketch has been ul-ed to the dropbox @ 1Schem.jpg
>
>Switch I was directed to purchase, will switch polarity, but
>will not carry the load.
>
>Relays are starter solenoids.
>
>Thanks
>
>gary
If you use starter solenoids, you'll need four of them if you want it
to run in both directions. The switch can be a SPDT center off or
DPDT center off toggle switch. The solenoids would be arranged in an
H with top of the H going to + battery and bottom of H going to
ground or - battery with the motor being the crossbar of the H.
-----------
| |
S1 S3
|--M--|
S4 S2
| |
-----------
The switch would then energize diagonally opposed pairs of solenoids
S1 and S2 or S3 and S4, one set for up and the other set for down.
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Posted by Winston on May 2, 2008, 2:42 am
Please log in for more thread options Don Foreman wrote:
> On Thu, 01 May 2008 19:05:20 -0600, gary556@hotmail.com wrote:
>
>
>>I'm trying to wire a Freightliner to operate the tarp motor.
>>
>>The diagram I was given, suggests the machinist who provided
>>it, is not or should not be looking to quit his day job:)
>>
>>jpg of his sketch has been ul-ed to the dropbox @ 1Schem.jpg
>>
>>Switch I was directed to purchase, will switch polarity, but
>>will not carry the load.
>>
>>Relays are starter solenoids.
>>
>>Thanks
>>
>>gary
>
>
> If you use starter solenoids, you'll need four of them if you want it
> to run in both directions. The switch can be a SPDT center off or
> DPDT center off toggle switch. The solenoids would be arranged in an
> H with top of the H going to + battery and bottom of H going to
> ground or - battery with the motor being the crossbar of the H.
>
> -----------
> | |
> S1 S3
> |--M--|
> S4 S2
> | |
> -----------
>
> The switch would then energize diagonally opposed pairs of solenoids
> S1 and S2 or S3 and S4, one set for up and the other set for down.
Yup. My thoughts exactly.
http://metalworking.com/dropbox/tarp.txt
http://metalworking.com/dropbox/tarp.JPG
On the right side you see a three position switch.
Select 'Tarp On' and the motor drives the tarp over the load.
The limit switch stops the motor when the tarp is in place.
Select 'Tarp Off' and the motor removes the tarp from the load.
The other limit switch stops the motor when the tarp is off.
No provision is made to allow for a jam other than the fuse
blowing.
No liability is accepted for use of any part of this circuit.
Have Fun!
--Winston
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>
>The diagram I was given, suggests the machinist who provided
>it, is not or should not be looking to quit his day job:)
>
>jpg of his sketch has been ul-ed to the dropbox @ 1Schem.jpg
>
>Switch I was directed to purchase, will switch polarity, but
>will not carry the load.
>
>Relays are starter solenoids.
>
>Thanks
>
>gary