Johnson Service Bulletin SB-932 - Rawhide Hammer for Propeller Blades

January 7, 1963. Johnson recommended a #3 rawhide hammer for straightening and re-pitching bent propeller blades, available from Stevens Experimental Company.

Johnson Motors Service Bulletin letterhead
January 7, 1963
Bulletin No. SB-932 Tools
SUBJECT: Rawhide hammer for re-pitching bent propeller blades.
Certainly you've had trouble locating a suitable rawhide hammer for use in truing up those bent propeller blades. Since most hardware stores and tool supply houses carry only the lightweight rawhide mallet we felt it was necessary to make a suitable hammer readily available to our dealers for this purpose.
Original factory photographs of rawhide hammer and its use with a propeller straightening fixture
RAWHIDE HAMMER - FOR STRAIGHTENING BENT PROPELLER BLADES.
Shown here is a rawhide hammer that is heavy enough (#3 size) to true up bent propeller blades with very little effort. Each dealer that has a set of propeller "re-pitching" blocks (straightening fixtures) will certainly be interested in this item. The use of this item need not, however, be limited only to straightening propeller blades. It can also be used to straighten bent anti-cavitation plates, and to remove dents from the aluminum shrouds of those trade-in engines you are preparing for the coming season.
This item is available through STEVENS EXPERIMENTAL COMPANY, 2015 Grand Ave., Waukegan, Illinois. This firm is supplying the rawhide hammer at the net price of $4.50 each, postage prepaid. Incidentally, this $4.50 net price is considerably less than the average retail price of a #3 size rawhide hammer. Don't forget to include the full prepayment with your order, and Illinois dealers add 4% for State Sales Tax.
JOHNSON MOTORS Robert Compton Service Department
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