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Quick start guide

To get a first impression of the KorfkerRest® please follow these steps: 

Step 1

Using the Torx key provided, check that all the Torx screws are tightened before use.

Step 2

(For violists only, violinists continue with step 3)

Check the size of your viola. If it is approximately 24 cm wide at the lower bouts please continue to step 3 of this guide.

If it is wider or narrower please read the section entitled »Adjusting the viola model to the size of your instrument« before continuing to step 3.

Not correctly adjusting the size before use can damage the rest or your instrument.

Step 3

If the rest is too tight or too loose for your instrument, adjust it by loosening the Torx screw of the shoulder side leg and tilting the hinge joint inwards or outwards. Tighten the Torx screw again afterwards.

PLEASE OBSERVE THE FOLLOWING: 

If the rubber feet slip during playing they can be tightened by »Adjusting the legs« and »Narrowing the rest« (see manual).

Manual 

For full benfit of its features and to ensure a long life for your PIRASTRO KorfkerRest®, please read this instruction manual carefully before use.
It is for use with both the violin and viola model.

Bending the rest

The PIRASTRO KorfkerRest®has been pre-bent to a shape that has proven to be comfortable for many players. A unique feature of this rest is that its shape can be changed by manual bending to fit the individual, as seen in picture 1, 2 and 3.

WHEN BENDING THE WOOD PLEASE KEEP THE FOLLOWING IN MIND:

  • The fibres of the wood need time to adjust to a new shape, therefore always bend the rest slowly and carefully. Fast and forceful bending will damage the wood and may cause cracking.

  • The rest has a bending limit. By bending it slowly and carefully you will feel when the rest cannot bend any further. Do not force the wood to bend beyond this point.

  • Please keep in mind that small adjustments can have a significant effect on comfort.

  • Clamping the rest onto the instrument will increase the shoulder curve slightly.

  • When the rest is bent and its shape altered, the legs might need to be readjusted. Please refer to the section entitled »Adjusting the legs«.

  • Ideally, after bending it to the required shape give the wood 2-3 hours off the instrument to stabilize before regular playing.


1 Bending the rest


2 Normal bend


3 Maximum bend

See the following video:

Video: Bending the rest

Adjusting the legs

Each leg has a Torx screw connecting the hinge joint with the base joint and a Torx flange screw connecting the base joint with the wooden bridge. When the Torx screws are tightened correctly the locking rings prevent movement between the hinge joint and the base joint and between the base joint and the wood. These four locking rings are essential to the functioning of the rest and should be replaced if lost or damaged (6 replacements included).
 


4 Ideal angles of the legs

Adjustments to the legs should be made in small increments. For the maximum stability of the rest it is very important that the shoulder leg and chest leg meet the instrument at
a straight angle when attached. When not attached the two hinge joints of the rest lean slightly towards each other (see picture 4). In order for them to do so and to ensure the ideal position of the wooden bridge in relation to the instrument, whatever adjustment is made needs to be divided between the shoulder leg and the chest leg.

After changing their position, look at both legs sideways and make sure the adjustment screws of the rubber feet are parallel to each other (see picture 7). When placed feet downwards on a flat surface, all 4 tips of the rubber feet should touch the surface. If they do not, adjust the tilt of the hinge joint of the chest leg.

After making adjustments always check all screws have been tightened.

See the following video:

Video: Starting Position

Narrowing the rest

Increasing the angle of the hinge joint of the shoulder leg inwards (see picture 5) will narrow the rest and create a stronger clamping action. In order to adjust the hinge joint, loosen the Torx screw enough to allow the joint to move. Move it to the desired position and tighten the Torx screw.


5 Angle of the shoulder leg

A similar adjustment needs to be made to the chest leg (see picture 6). To make the rest narrower, loosen the Torx flange screw and slightly rotate the base joint clockwise. After tightening the Torx flange screw, loosen the hinge joint. Hold the rest down on a table with the feet parallel to each other and all four hooks of the rubber feet touching the surface. Fix the resulting angle by tightening the Torx screw.


6 Angle of the chest leg

See the following video:

Video: Narrowing the rest

Widening the rest

Straightening the hinge joint of the shoulder leg by bringing it outwards will widen the rest and create a weaker clamping action (see picture 5). In order to adjust the hinge joint, loosen the Torx screw enough to allow the joint to move. Move it to the desired position and tighten the Torx screw.


5 Angle of the shoulder leg

See the following video:

Video: Widening the rest

A similar adjustment needs to be made to the chest leg (see picture 6). To make the rest wider, loosen the Torx flange screw and slightly rotate the base joint anticlockwise.
After tightening the Torx flange screw, loosen the hinge joint. Hold the rest down on a table with the feet parallel to each other and all four hooks of the rubber feet touching the surface. Fix the resulting angle by tightening the Torx screw.


6 Angle of the chest leg

Adjusting the tilt of the rest

The tilt of the rest can be adjusted as seen in picture 7. In order to increase or decrease the tilt of the rest, start with the shoulder leg. Loosen only the Torx flange screw and slightly rotate the whole leg clockwise to increase the tilt or anticlockwise to decrease it.


7 Straight and angled tilt

A small rotation will have a noticeable effect. After tightening the Torx flange screw, loosen the hinge joint of the chest leg. Hold the rest down on a table with the feet parallel to each other and all four hooks of the rubber feet touching the surface. Fix the resulting angle by tightening the Torx screw.

See the following video:

Video: Changing the tilt of the rest

Returning the rest to its original position

In its original position and when not attached to the instrument (see picture 4), the two hinge joints of the rest lean slightly towards each other. This gives the best grip on the instrument.


4 Ideal angles of the legs

To return the rest to its original position first loosen all four screws. Continuing with the shoulder leg, point the rubber foot towards the centre of the rest as seen in picture 8 and tighten the Torx flange screw. Now swivel the hinge joint up to the angle seen in picture 4 and tighten the Torx screw.

Continuing with the chest leg, position this as seen in picture 9 and tighten the Torx Flange screw. Hold the rest down on a table with the feet parallel to each other and all four hooks of the rubber feet touching the surface. Fix the resulting angle by tightening the Torx screw.

See the following video:

Video: Starting Position

8 Shoulder leg  


9 Chest leg

 

The ErgoPack

Among the accessories of the PIRASTRO KorfkerRest® Model 2 you will find the ErgoPack. This consists of a barrel shaped joint (picture 10), a flat joint (picture 11), screws and locking rings. These two joints increase the number of positions which can be achieved with the KorfkerRest® and help to adjust the Viola model to a wide range of instrument sizes.

INSTALLING THE ERGOPACK
In order to add one of the ErgoPack joints to a leg, install the chosen ErgoPack joint in between the base joint and the hinge joint. Be sure to insert one of the locking rings into each connection and tighten all Torx screws well. Extra Torx screws and locking rings can be found in the accessories.

The ErgoPack has proven to be especially useful for those with narrower violins, where narrowing the rest as described does not provide the necessary stability and the rubber feet tend to slip during playing. For those players we advise to use the adjustments for »Narrower Violins«.

Many players have found that bringing the rest closer to the body has given them more freedom of movement of the left arm. To try this, use the adjustments for positions »Closer to the Player«.

The standard options for installation of each ErgoPack joint have been given lettered pictures for ease of understanding.


10 Barrel joint


11 Flat joint


 


 

The most popular configurations for violin using the ErgoPack

NARROWER VIOLINS
Adjusting the rest for narrower violins can be done with S1 or C1. Using S1 the rest will point further over the shoulder, using C1the rest will lie more towards the chest.
In special cases the KorfkerRest can even be made to fit 3⁄4 violins by using both S1 and C1. Please check if the size and height of the rest are suitable for the young player in question.

S1 Shoulder leg with flat joint
 


C1 Chest leg with barrel joint
 

HIGHER POSITIONS
To elevate the position of the violin use C2. Using Ssimultaneously with C2 can give further comfort by positioning the shoulder side of the rest where there is less space between the violin and the shoulder.

 

S2 Shoulder leg with barrel joint
 

C2 Chest leg with flat joint
 

CLOSER TO THE PLAYER
To bring the rest closer to the player use both S2 and C3

S2 Shoulder leg with barrel joint
 

C3 Chest leg with flat joint
 

LOWER ON CHEST
To move the rest towards the chest use both S3 and C1.

S3 Shoulder leg with flat joint
 

C1 Chest leg with barrel joint
 

FURTHER OVER THE SHOULDER
Position the rest further over the shoulder with both S1 and C4.

S1 Shoulder leg with flat joint
 

C4 Chest leg with barrel joint
 

Adjusting the viola model to the size of your instrument

The Pirastro KorfkerRest® for viola can be adjusted to fit all viola sizes. The supplied ErgoPack joints should be used to make adjustments beyond the standard setting of 23.5 to 24.5 cm (width of the lower bouts of your viola).

INSTALLING THE ERGOPACK
In order to add one of the ErgoPack joints to a leg, install the chosen ErgoPack joint in between the base joint and the hinge joint. Be sure to insert one of the locking rings into each connection and tighten all Torx screws well. Extra Torx screws and locking rings can be found in the accessories.

When adding the adjustment joint to the chest leg, also rotate the base joint so the adjustment joint points inwards or outwards as seen in the pictures.

After having added or removed adjustment joints, please always check if the tilt of the rest is still as desired and the positions of the legs are correct as described in »Adjusting the legs«. Always tighten all screws well before using the rest.

The part of the ErgoPack not used for size adjustment can be used to create alternative positions as described in the ErgoPack section for violin.

 

SMALL VIOLAS (22 - 23.5 cm)
Use S1 or C1.
Using S1 the rest will point further over the shoulder, using C1 the rest will lie more towards the chest. If this configuration is still too wide, use S1 and C1 simultaneously.

S1 Shoulder leg with flat joint
 


C1 Chest leg with barrel joint
 

MEDIUM SIZED VIOLAS (23.5 - 24.5 cm)
Do not need any of the ErgoPack parts for size adjustment. In this case the ErgoPack may be used to create the same configurations as for the violin model as described in the ErgoPack section for violin.

LARGE VIOLAS (24.5 cm and wider)
24.5-25.5 cm: Use S3 or C4. Using C4 the rest will point further over the shoulder, using S3 the rest will lie more towards the chest.
25.5 cm or wider: Use S3 and C4 simultaneously.

S3 Shoulder leg with flat joint
 


C4 Chest leg with barrel joint
 

Replacing the rubber pads

Starting off at one of the ends, first remove the worn out rubber pad. Peel the backing off one of the replacement rubber pads included within the accessories. Start by aligning the round hole exactly around the Torx flange screw, then align the other end of the pad around the large eye. While slightly flexing the rest, press down the middle part of the pad. Before using the rest, press the whole rubber pad strongly onto the wood, especially around its entire edge.

See the following video:

Video: Replacing the pads

Shipment 

KorfkerRest® for Violin Model 2
Art.-Nr. 700010​​​​

  • PIRASTRO KorfkerRest® for Violin
  • ErgoPack with screws (x2)
  • Torx key (size 8 for all screws)
  • Rubber pad (x4)
  • Locking rings (x6)
  • Protection bag
  • Printed manual
     

KorfkerRest® for Viola
Art.-Nr. 700020​​​​

  • PIRASTRO KorfkerRest® for Viola
  • ErgoPack with screws (x2)
  • Torx key (size 8 for all screws)
  • Rubber pad (x4)
  • Locking rings (x6)
  • Protection bag
  • Printed manual

Spare parts

Following spare parts are available for the PIRASTRO KorfkerRest®:


ErgoPack
with screws/rings
Art. No. 701084


Rubber pad
KorfkerRest® Violin
Art. No. 701078


Rubber pad
KorfkerRest® Viola
Art. No. 701079


Locking rings
6 pcs.
Art. No. 701083

Torx key
for KorfkerRest®
Art. No. 701090

Rubber foot
for KorfkerRest®
Art. No. 701054

 

Further information

Please also see the frequently asked questions on the PIRASTRO KorfkerRest®.

FAQ