November 15, 1962
Bulletin No. 927
SUBJECT: Modification of Special Tool
#379241 PULLER JAW SET.
Complaints have been received from the field which indicate that the jaw tips of
#379241 PULLER JAW SET break when the puller is used to remove a 75 H.P. forward
Electro-Magnet. This is the result of inadequate clearance between the jaws and
the Electro-Magnet which prevents full engagement
of the jaws for pulling. This problem does not
exist, however, when our #379241 PULLER JAW SET is
used to remove the 40 H.P. forward Electro-Magnet.
The puller jaw illustrated in Figure 1, has been
altered to provide the necessary clearance for use
on 75 h.p. engines. Blacked out areas indicate
where metal has been ground away.
Our dealers can readily modify this tool on a
grinding wheel. Proceed as follows:
1. Use a hammer and punch to drive out the roll
pin holding each jaw to the puller body.
2. Grind an arc approximately 1/16" deep near
the tip of both jaws as illustrated in Figure
1. (See Arrow A).
3. Grind a 1/16" taper from the heel end of both
jaws - illustrated by blacked out area (arrow B)
in Figure 1. This facilitates greater initial
spread of the jaws and assures maximum jaw tip
engagement when pulling.
These same modifications are being made to all
#379241 PULLER JAW SETS in stock. Puller jaws that
are already modified as prescribed by this bulletin
when received by the dealer are ready for pulling
and do not require alteration.
FIGURE 1
JOHNSON MOTORS
Robert Compton
Service Department
RC:eb
NOTE: Post on your V-75 index.