Model Sindre
Vacuum hold down
ManualSindre> Nordic Mythology
From generation to generation the Nordic Mythology has told about the Dwarf, who possessed
craftmanship unrivalled by any other beings.
The Dwarf Sindre was the legendary blacksmith, who forged Mjolner the hammer of Thor, Godof Thunder. Thor could hure Mjolner at the taget, whereupon it returnrd to the Gods hand of its
owne accord, having hid the target with great accuracy.

Read this before handling the turntable!

An analogue playback system is a sensitive piece of precision mechanics,
and must be handled as so.

Read the instruction carefully before set up and operating the turntable.
Allways keep the right side up when handling the turntable.
Follow the instruction manual step by step, to get the best result.
The tiny tonearm wire must be handlet with care.
Do not turn off the valves on the turntable backpanel when the airsupply
is operating!
Keep the turntable away from direct sunlight.
Check the dust filter at the air supply frequently.

Index
Page 4

Product Overview

Page 5-10 Setup Manual
Page 10

Setup TipsPage 11

MaintenanceSpecifications

Page 12Declaration

Page 3

Turntablesliding pipe
armtubearmliftair pipe

input right channel
input left channel
airflow adjustment valve, arm

input PSU
air input
airflow adjustment valve, platter

Airsupply

on/offdust filter

air output

PSU

33/45
speed finetuning

Page 4on/offSetup Manual.

1. Attach the spikes under the turntable, Pic. 1. and Pic. 2.

Pic. 1.

Pic. 2.

2. Place the turntable on the rack.
For an easy adjustment of the tonearm (Page 6), ensure free access to the 2 screws underneath theturntable, holding the tonearm.
If not possible in the rack, then place the turntable on the edge of a table, Pic. 3.

Pic. 3.
3. Place airsupply indoor, on a horizontal plane. Ensure the airsupply is stable to avoid vibrations, which cancause some noise.
Note> If the airsupply is placed on a hard surface, it can reflect some noise. It is recommended to place theairsupply on a soft surface (carpet).
Install the airtube, and connect one end to the airsupply and the other end to the turntable. Pic. 4 and 5.
Do not cause any pressure or squeezing to the airtube.
Note> Both the airsupply and airtube must be placed indoor in normal livingroom environment, to obtaincondens.
Connect the powercord to the airsupply, and the powercord to the outlet.

Pic. 4.

air output

Pic. 5.

air input

Page 5

4. Remove the subplatter, Pic. 6. Important> Do not cause any scratches or marks to the bearing/airbearing.
Even a small scratch can cause a noisy bearing.
Add oil to the bearing, approximately half full, Pic. 7.
Place the subplatter on top of the airbearing, and let it sink. Remove the subplatter again, Pic. 8.
If the oil is pressed out of the bearing, the amount of oil is correct. Wipe away the surplus of oil.
Be aware the oil does not flow into the airhole!

Pic. 6.

Pic. 7.

Pic. 8.

5. Mount the belt around the subplatter and motor pulley, Pic. 9. 10 and 11.
Mount the platter, Pic. 6, and adjust the rack or shelf in level.

Pic. 9.

Pic. 10.

Pic. 11.

6. Switch on the airsupply.
Turn the subplatter carefully by hand, at least 2 turns, to ensure the belt fall into place, Pic. 12.

Pic. 12Page 6

7. Place platter on top of the subplatter, Pic. 13.

Pic. 13.

8. As the platter is slightly concave, the spirit level must be placed as shown on Pic. 14.
Adjust the turntable in level, Pic. 15. Thighten the spikes, Pic. 16
Screw

Pic. 14.

Pic. 15.

Pic. 16.

9. Mount the headshell clamb on the cartridge, Pic. 17. Mount the cartridge to the headshell, Pic. 18
Attach the connecting clips, to the cartridge, Pic. 19. Note> The clips must be handled with great care!

Pic. 17.

Pic. 18.

Pic. 19.

connecting clips

10. Attach the counter weight, Pic. 20.
Adjust the trackingforce. See the cartridge manual for recommended trackingforce.
Loosen the screw on the back of the armbase, and adjust the VTA approximately, Pic. 21.

Pic. 20.

Pic. 21.
Page 7

Tonearm adjustment.
The tonearm can be move forward and backward on the plinth. Simply untighten the two screws holding thetonearm, underneath the turntable, Pic. 22. The two screws (underneath turntable), must be untightensufficiently to avoid scratches on the plint, when the tonearm is being moved!
Furthermore, the tonearm can be adjusted in the horizontal plan, independent of the plinth. Remove thescrew on the right topside of the the armbase, Pic. 23. A small screw, placed under this screw, can tilt thetonearm, and adjust the horizontal plan, Pic. 24. Note> The tonearm horizontal plan will change, when thetwo screws holding the tonearm (underneath turntable) is tightened afterward.

Pic. 23.

Pic. 24.

screw

Pic. 25.

11. The adjustment pipe is a helpfull tool to ease the horizontal adjustment which is vital for a linear tracking airbearing
tonearm.
Draw the adjustment pipe onto the airpipe. Make sure the adjustment pipe is sliding frictionless on the airpipe.
Adjust the airflow if necessary, Pic. 26.
Adjust the horizontal plan as descripte above.
When the adjustment pipe, Pic. 27 sliding gently and smoothly to the left, the adjustment is correct.

Pic. 26.

adjustment pipe

Pic. 27.

airflow adjustment valve, arm

12. Switch off the airsupply. Place the alignment tool on top of the platter. Ensure the alignment tool is parallel to theairpipe, Pic. 28.
Adjust the cartridge, so the stylus tip is exactly in the groove at the alignment tool, Pic. 29. The cartridge bodymust be parallel to the groove at the alignment tool, Pic. 30. Note> Operate the armlift slowly.
The azimuth is correct when the cartridge is tighten to the headshell.
ParallelPic. 28.

Pic. 29.

Pic. 30.

13. Adjust the VTA finally as describt in point 10, Pic. 26.
After the VTA adjustment, check all the adjustments given above, to ensure, that the setup of cartridge/tonearmis perfectly done.
It is recomended to use a test record.

Page 8

14. Connect the PSU by the connector, on the turntable backpanel, Pic. 31.
Connect the powercord to the PSU, and finally connect the powercord to the outlet.

Pic. 31.

connector

15. Switch on the airsupply, and start the platter. If you hear any noise from the bearing, a gentle airflow
adjustment is required. Adjust the airflow at the turntable backpanel, Pic. 32.
Note>Too much or too little airflow can cause a noisy airbearing.
Important> Do not turn off the adjustment valves on the turntable when airsupply is operating.

Pic. 32.

airflow adjustment valve, platter
airflow adjustment valve, arm

16. Note> The tonearm must slide absolutely frictionless on the airpipe.
To obtain this effect, slightly move the tonearm on the airtube, Pic. 33, at the same time gently turn up
the airflow.
When you feel the tonearm is sliding unhindered (on an airfilm), the airflow is correct.
Adjust the airflow at the turntable backpanel.

adjust the airflow

Pic. 33.

When the bearings are running absolutely noiseless and smoothly the airflow is correct.
If the setup is done on a table: Afterwards place the turntable on top of a stable floorstanding rack.
Adjust the turntable in level. Important> Use the adjustment pipe for level finetuning. Adjust at thefront spikes.
You are now ready to play records.
Do the final airflow finetuning when playing the first records!

Page 917. Vacuum hold down.
Activate/deactivate the vacuum by placing/removing the vacuum clamp on the spindle. Pic. 34.

Pic. 34.

clamp

Playing records
Turn on the airsupply.
Thighten the clamp, just as much as the record is thightend to the platter. Do not overtighten.
When moving the tonearm, push carefully the sliding pipe. (Do not push the headshell).
Turn down the armlift slowly until the stop.
It is recommended to turn off the platter when changing records.
Important: Turn off the airsupply when finish listen!
Enjoy

Set up tips
To ensure an airbearing turntable/tonearm to work perfect, there are some importantparameters that is vital to succeed.
On the Bergmann turntables and tonearms the parameters are as follows:
The platter:
1. The platter must be in level, as every other turntables.
2. the amount of airflow must be correct! That means just enougth air to lift the platter toobtain a frictionless airfilm between the airbearing and the subplatter.
3. The airbearing and subplatter must be absolutely clean to avoid friction and noise.
The tonearm:
1. The airpipe must slightly sloping towards the center spindle.
Bergmann tonearms can be tilted independed of the plinth.
2. The airpip and the sliding pipe must be absolutely clean.
3. The tracking force must be correct.
4. The airflow must be correct!
The airflow is correct when the sliding pipe is flying unhindered on the airpipe. An airfilm
must create a space between the airpipe and the sliding pipe. That means just enougth
airflow to lift the sliding pipe from the airpipe, but not so much as a friction is caused at teh
underside between the sliding pipe and the airpipe!

Page 10

Maintenance
Turntable
It is recommende to check the adjustmens yearly. If necessary, finetune.
Check the amount of oil in the bearing yearly.
Clean carefully with a soft cloth wriged in mild soapy water.
Airsupply
Check the dust filter frequently, and clean or replace if necessary. A dirty filter can cause damage tothe pump!
Clean carefully with a soft cloth wriged out in mild soapy water.

dust filter inside bowl

Specifications
Turntable

Airsupported platter, centred by a spindel&hard weared
low friction polymer bearing.
DC motor. Beltdriven.

Plinth:Solid fiber board.

Platter:

Acryl, 4 kg.

Subplatter:

Aluminium, 3,2 kg.

Total weight:

23 kg.

Dimensions:475 x 500 x 210 mm. (D x W x H)

Tonearm

Linear tracking airbearing tonearm.
Hard aluminium alloy&carbon.

Effectiv mass:

10 gr.

PSU

Separate. 33 & 45 rpm.

Dimensions:

370 x 210 x 94 mm. (D x W x H)

Airsupply

Silent, clean, dry and smooth airflow.

Weight:8,4 kg.

Dimensions:415 x 210 x 220 mm. (D x W x H)

Page 11

Declaration
Bergmann Audio hereby declares that this product is in compliance with the following Directives.
The product comply with the essential requirements of the directives specified:
2004/108/EC EMC Directive
2006/95/EC Low Voltage Directive
2011/65/EU RoHS Directive

Registered Trademark

BERGMANN AUDIOVallerbaekvej 112
7470 KarupDenmark

Page 14

Registered Trademark

Handmade in Denmark

www.bergmannaudio.com