Hello, Ken (Malarz).
There are many ways to clean a wood-combed harmonica.
When cleaning any wood-combed harmonica, cleaning
liquids should NOT be used.
Water and other liquids may cause the comb to warp, crack,
split or peel.
On the factory-installed Hohner 48 chord Chromatica, #267,
nails hold the reed plates to the comb. DON'T remove the reed
plates from the comb.
Here's one way to clean the Hohner Chromatica #267:
1. Remove the covers and hinges, store the screws in a cup
or other small container. Note the lengths of the bolts and nuts, for
the covers; and shorter length screws for the hinges.
2. Clean the covers and hinges with a silver paste and a soft cloth.
Set the covers and screws aside.
3. Using a dry, clean toothbrush, brush into the reed chambers,
loosening and removing dried particles. Tap the comb into your
hand, with the chambers' holes down, and drop the particles into a
waste basket.
4. If the chamber walls need cleaning, use a jeweler's small, slotted
screw driver. LIGHTLY scrape the walls to remove particles. Tap the
comb, holes down, into your hand, then drop the particles into a
waste basket.
5. To clean the outside of the reed plates: This step is not mandatory,
and may be skipped. Check around the valves and reeds, to see that
they are free to move. If not free, remove the obstructions:
(DON'T remove the plates from the comb). Use a Q-Tip (or or other
cotton-tipped applicator), dipped in 70% isopropyl alcohol, and wipe
around the reeds and valves. DON'T touch the reeds or valves.
Don't worry about the inside chambers' reed plate. Do only the outer
side reed plates. DON'T try to clean the reeds. You might snag them,
or worse. Reeds don't normally require cleaning.
6. To clean/repair the leather valves: DON'T. Replace them with Mylar
plastic valves, or other synthetic (water-proof) valves. Or, hire a harp
repair-maintenance technician to do the work for you. SlideMeister
George Miklas is a certified Hohner harmonicas repair technician. Or.
contact Hohner USA for repairs.
SlideMeister Gary Lehmann (Gnarly) is also a pro harp technician.
7. Your Hohner 48-chord harp has leather valves, so it probably has
an expired warranty. Leather valves were installed on all Hohner valved
products from circa 1902 until after World War 2, when Mylar valves
were introduced on all valved Hohner harmonicas.
8. Cleaning-restoring-retuning a 48-chord harmonica can be extremely
time-consuming and risky work, even for a pro repair technician. If it
was my 48-chord harp, I'd hire a professional repair tech to do the work.
Best Regards, Stay Healthy
John Broecker