Frequently asked questions

1. How often should I lubricate my Hammond?

To check if need to add oil to the generator is sufficient to verify the state of lubrication of the felts that retain the lubricating oil.
Gently popped a toothpick in each of the two funnels (plastic or metal) placed on the generator until it touches the mat below and press lightly. If the wood comes out wet oil is not necessary to lubricate, if dry fill 3 or 4 times in a row each of the two funnels.
In models B-3 (C-3/A-100/RT-3) and M Series (M-3/M-100) tank placed over the group- Motor-Scanner contains a mat that keeps the oil lubrication.
Tap the felt with your fingertip. If your fingertip is dirty oil lubrication is not necessary, if it stays dry, pour a few drops of oil to soak up all the felt.
In models with synchronous autostart motor (type L-100, E-100) add a few drops of oil in the two funnels at the ends of the motor after lifting the lid on spring

2. Why my Hammond motor does not start or is hard to start?

It may be a lack of lubrication of the generator (no oil or oil is not suitable), a startup problem in the motor launch (in models with two motors), extremely low temperature which hinders or even prevents the generator start (try to heat the generator with a hot air oven for a few minutes)

3. Why my Hammond is detuned?

The most common cause is the variation of the supply frequency that occurs when the organ is powered by a group of continuity or, more rarely, in some areas of the electricity network.
To solve the problem power the organ with a common UPS for PC or install a converter/frequency stabilizer on the motor/s.
Other possible causes: lack of lubrication, incorrect start procedure (in models with two motors)

4. Why when I turn on my L-100 I hear a strong squeak?

Almost certainly the generator is locked for lack of oil.
It is recommended turn off the organ immediately to avoid damaging the generator that is unlocked and lubricated by an technician specialist.
Same problem can affect all Hammond organs with autostart synchronous motor (E / T, etc. ..)

5. What happens if I use my Hammond with the generator locked?

The instrument will be a bit 'noisy due to vibration transmitted from the generator to the cabinet

6. Can I change the bar used to trigger the percussion?

In Hammond organ B-3 type (C -3/A-100/RT-3) a simply circuit modifcation allow percussion's triggers control using another busbar (for example that by 1 1/3 ' as in the spinet models) regaining so the more useful even harmonic 1'

7. Why do some keys do not play with all drawbars?

Can be a problem of contact cleaning between key's contact springs and below busbar.
Try to perform a trill on the key to clean contact between key's contact springs and busbar.
We recommend do not moving the shift-bar because, if busbars aren't in good condition, you can damage the keyboard.
If self-cleaning key contact fails need a technical intervention on the keyboard to clean busbars and/or restore keys contact springs and/or resistive wires

8. I don't like my Hammond sound!

First try another amplifier (p.e. another Leslie), after replace all tubes.
If Hammond sound is still unsatisfactory most likely need generator service: recap and/or pickups's alignment

9. Why my B-3's Vibrato is pulsing like a tremolo?

This fault is particularly perceptible with Vibrato's selector switch in the V3 position (max modulation depth), usually due to aging of components of the delay line and / or excessive lubrication Scanner

10. Can I change percussion's decay time?

On chassis that contains the electronic percussion there is a device (potentiometer or trimmer) that adjusts percussion's decay's time according your needs.
Usually this adjustment is labeled "Cut Off" or "Percussion Decay"

11. With percussion' s volume in Normal B-3's drawbars's volume decreases. Why?

This percussion's behavior allows percussion's emphasis with percussive instruments drawbars settings.
A simple percussion's circuit modification allows you to leave unchanged drawbars's volume when you set percussion's volume to Normal
Depends on your musical tastes!

12. How I can connect Organ and Leslie with differents main voltage?
13. How I can stop motors in a tube state Leslie?

Leslie tube state (type 122/147/251) are prepared for motors stop with Break Control Kit. In our warehouse we still have some of this (NOS still in original packaging).
To stop Leslie in the symplest and cheap way unplug two white wires that power Slow motors and set Chorale (Slow) speed: Leslie will stop.
Finally you can use our Leslie Logic Control

14. How often should I lubricate my Leslie and how?

How often lubricate Leslie depends on its use.
Leslie's mechanical parts are very silent, unlike its clones, so that even slight mechanical noises may be indicators of a lack of lubrication and need of revision.
Leslie's lubrication points, located in motors and rotors, are accessible after removing them.
We strongly recommend don't use too lubrication on high rotor (horn), to avoid damaging tweeter below.
Our technical service offers a suitable Leslie restoration.

15. How can I verify that a Hammond is working properly?

Perform following tests:

Verify the generator generate all notes playing in sequence all keys on the upper keyboard first with only 16' drawbar (first from left) after with only 2' drawbar (sixth from left ).
If tones are missed repeat the test on the lower keyboard.
If same tones are missed on both keyboards problem is in the generator otherwise in the generator-keyboards connection.
Keep in mind that spinet models (like L-100/M-100) has not High Foldback so it's normal that organ don't play after last F#

Play in sequence all keys on each keyboard and on pedalboard, with all drawbar, one at a time, to control if every key play on all drawbar.
Holding down a key slowly pull out all drawbars, one at a time. If sound stops drawbar must be repaired.

Make sure that all effects (percussion, vibrato, reverb, etc. ..), amplification and expression pedal works properly.

16. Can I change Presets on my B-3?

Yes, although usually is never done, perhaps because of the cumbersome procedure (although conceptually simple). 
From Downloads section of the site you can download a free Excel spreadsheet that we have elaborated to facilitate (and encourage) presets customization.

Use Hammond Presets!