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Lull 644B service manual - Electrical

Andy1845c

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Joined
Jul 10, 2009
Messages
249
Location
Southern Minnesota
Occupation
Electrician
Would anyone have access to the correct electrical schematic for a 644B serial ending in 1136? I have found one online that is very very close but the schematic for the control board with the relays under the dash isn't lining up quite right.
 

willie59

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Dec 21, 2008
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13,407
Location
Knoxville TN
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Service Manager
You can download the manuals for free for that machine from the JLG website
 

tractormech

Senior Member
Joined
Feb 19, 2015
Messages
349
Location
florida
You can download the manuals for free for that machine from the JLG website
Yes you can. There are some diagrams there. I have a book I bought from JLG years ago that has entailed electrical and hydraulc schematics. It's very entailed and breaks down the machines a lot better than the online doagram. Just thought it might be more helpful for whatever he's needing
 

Andy1845c

Well-Known Member
Joined
Jul 10, 2009
Messages
249
Location
Southern Minnesota
Occupation
Electrician
I've looked at everything on the JLG site. The schematic they have in the 644B Service manual isn't the same as my machine. There are quite a few differences.
I found a manual for a 1044 on a sketchy website that has a closer to correct electrical schematic - but still has some differences.
 

willie59

Administrator
Joined
Dec 21, 2008
Messages
13,407
Location
Knoxville TN
Occupation
Service Manager
Keep in mind, it may be possible you may have a machine that was built just before JLG bought out Lull, and during the transfer of information from company Lull to company JLG that specific info for your machine got tangled up and missed out on the exchange. It is possible.
 
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