Accordion Repairs Made Easy
by John Reuther
|AIR LEAKS - BELLOWS REPAIRS
Replacing gaskets or skins on bellows frames.
Replacing bellows frame holding pins.
Leaks bellows frame holding pins.
Replacing metal corner pieces.
Removing tight bellows frames.
Relining bellows folds.
Ordering new bellows.
Strengthening weak folds.
AIR LEAKS OTHER THAN FROM THE BELLOWS
Numbering reed blocks before removal.
Checking for air leaks at valves.
Leaks from switch mechanisms.
Leaks from screw holes, cracks, etc.
Repairing split corners of treble or bass casings.
Leaks from under valves or pallets.
Adjusting valve alignment to foundation plate
Leaks caused by bent foundation plate.
Locating leaks with talcum powder.
Leaks from keyboard fastenings.
Leaks from bass valves (see also pages 35 and 54).
Leaks from switch indicators, screw holes, etc.
Leaks occurring while the accordion is being played.
Leaks caused by broken or missing reeds.
Leaks caused by loose reed block fastenings.
Straightening warped reed block bases.
TREBLE KEYBOARD REPAIRS
Sticking treble keys. (see also pages 16 and 17).
Tools and equipment for removing treble keys.
Pulling treble key axle pins (see also pages 18 and 19).
Numbering the treble keys.
Replacing felts under keys.
Refastening valves to key rods.
Replacing treble keys and axle pins.
Treble key adjustment and alignment
Bending valve rods and leveling the keys (see also pages18 ).
Checking valves for alignment and air tightness (see also page 8).
Adjusting spring tension under keys.
Sanding and fitting wooden key shafts (see also page 66).
GRILL FITTING AND ADJUSTMENT
Replacing grill cloths.
Raising the front edge of the grill.
SPECIAL METHODS FOR REMOVING TIGHT AXLES
Heating axle pins with electric current.
Installing and fitting a new axle pin.
Metal key shaft :lubrication.
Broken valve rods and key shafts.
SPECIAL TYPE OF KEYBOARDS
Adjusting keys with two valves on each rod.
Keyboards with individual key mountings.
Making new guide rails for treble keys.
Uniform keyboard repairs (see also page73).
Chromatic keyboards of various types.
Chromatic keyboards metal construction.
Chromatic keyboards wood construction (see also page 74).
BASS KEYBOARD MECHANISMS
12 Bass keyboards.
Sticking bass buttons.
Straightening bent bass buttons (see also page33, 35 and 38).
Continuous sound from bass reeds (see also page 38).
Marking bass buttons.
24bass keyboards and 120 bass keyboards.
Details of bass machine parts and operation.
Cleaning and lubricating the bass machine.
Dismantling the bass mechanism.
Bass machine tools.
Making buttons rack.
Removing the buttons (see also page38, 39and 40).
Removing the rollers or pipes.
Removing the bass button panel.
Checking the bass section for leaks.
Bass strap replacement and adjustment.
Re-assembling the bass machine (see also page 6).
Cleaning the bass machine parts.
Replacing the pipes or rollers.
Replacing the buttons.
Checking for mistakes in bass button assembly (see page 41 for correct order of bass reeds).
Working parts catching against warped base board.
Continuous sound from bass reeds (see also pages 6 and 29).
Other types of bass machines.
Bass machines that can be removed as single unit.
Sequence of bass reeds n reed blocks.
Bass button shafts held by retaining wire.
Repairing button shafts.
The sliding lever type switch.
The semi-automatic switch (see also page 45).
Switch repairs with slides in reed blocks.
Checking slides for full opening and closing.
Freeing jammed slides in reed blocks.
Making new slide registers (see illustration on pages 70,71 and 72).
Adjusting and lubricating register slides.
Slides sandwiched in between foundation plates.
Removing foundation plates slide cover.
Checking re-assembly of slides.
Freeing switch levers that are hard to move.
Semi automatic shifts or switches.
Automatic or pre-set switches.
Checking linkage of automatic switch assembly.
Replacing broken flanges of sliding plates.
Bass switch mechanism (see also pages 70,71 and 72).
Waxing and replacing leathers.
How the reed works.
Leather strips for check valves (see also page 53).
Fastening the reeds to the reed blocks (see also page 55and 56).
Reeds affected by cold temperatures.
Locating a defective reed.
Common reed troubles.
Reed silent on inner or outer stroke of bellows.
Reed jammed in its slot.
Reed silenced by loose valve facing of key.
Adjusting the reed in its slot (see also page 59).
Reed servicing tools (see also page 53).
Reed fastening wax and rosin mixture.
Reed loosened from blocks by exposure to heat.
Adjusting and fitting reed leathers.
Straightening curled leathers.
Attaching the leathers to reed plates.
Cleaning reed and removing rust from reeds.
Removing all reeds from the blocks (see also page 50 and 51).
Tuning the reeds.
Removing the defective reeds.
Checking the pitch of the reed.
Raising and lowering the pitch of the reed.
Adjusting the height of the reed above its slot.
Centering the reed tongue in its slot.
Resonance from vibration of loose parts.
Tuning the reeds by ear.
The provino or tuning table.
Order of bass reeds on reed blocks.
Making and installing a new reed tongue.
Electronic tuning devices.
Installing microphones , locating troubles.
Other sound generating systems.
ACCORDION ALTERATION AND REBUILDING
Miscellaneous Repairs and Rebuilding Methods.
Replacing areas of celluloid on the casing.
Applying monograms ,chrome trim etc.
Gluing celluloid to rounded surfaces.
Sanding and buffing celluloid surfaces.
Celluloid and adhesives.
Patching small holes in celluloid surfaces.
Replacing celluloid on treble keys (see also page 16).
Replacing bass buttons (see also page 33).
Remodelling with power tools.
Installing additional switches.
Making new register slides for reed blocks.
Rebuilding the bases of the reed blocks.
Installing extra bass switches.
Altering the arrangement of treble reeds.
POWER AND HAND TOOLS FOR THE REPAIR SHOP
NECESSARY FURNISING FOR AN ACCORDION REPAIR SHOP
ESTIMATING REPAIR COSTS
CONCERTINA TYPE KEYBOARD DIAGRAMS
or the Euro equivalent
plus postage. Order by
credit card, using our secure server bank owned system.
O. Pagani & Bro. Inc., 1956 (original copyright)
copyright assigned and renewed by
ERNEST DEFFNER PUBLICATIONS