Service Manual

Hammond Service Manuals

You can still get an owner's manual or service manual for your Hammond. OrganServiceCo has manuals available for just about every Hammond made. Other vendors (eg. GoffProf) have manuals for a more restricted range of Hammonds, mainly the A's, B's, C's, RT's.

Other possible (hardcopy) sources:

Mark Glinsky's Manual Manor -

• http://www.markglinsky.com/ManualManor.html

Online Sources

There are also scans of various service manuals and schematics on the internet. Here are some pointers:

• The HammondFaq has this scan of an

  service manual for an A-100,
  as well as this collection of schematics.

• LarsMikaelVerholt also maintains a lists of on-line

  Leslie and
  Hammond schematics.

• Dean M's collection of Hammond and Leslie schematics is now back online at

  http://www.hammond-leslie.com/DeansSchematics.

• The collection of schematics and other documents at the TheHammondZone group page is growing.
• ?DaveMerrick was digitizing and updating the master service manual for free, but he seems to have stopped (and to have shut down his web site.)

  You can find archives of his contributions at the wayback machine.

• You can find a scan of the ?L100 service manual at http://dl.analoghell.com/.
• A copy of the M/M2/M3/M-100 service manual can be found at http://www.archive.org/details/HammondOrganServiceManual-ModelsMM2M3M-100.
• Here's another schematic. =;-)=

Other References

Hammond also published many TechnicalServiceBulletins and Service Letters for the benefit of their techs and dealers.

WaynePrue has written a "Hammond Disassembly & Restoration Manual for Non-technicians". It seems to be well illustrated with very nice color photos, but it's not cheap.

And here's an on-line clickable manual/tg wiring chart which will show you which tones go to what drawbar, and where they come from.