Johnson Service Bulletin SB-923 - Electro-Magnet Puller Jaw Set

September 26, 1962. Instructions for adapting puller jaw set 379241 to puller assembly 378450 and removing the forward electro-magnet from 40 and 75 HP electric shift engines.

Johnson Motors Service Bulletin letterheadFactory figure-1 puller illustration
September 26, 1962
Bulletin No. SB-923 Special tools
SUBJECT: #379241 PULLER JAW SET for removal of forward Electro-Magnet- 40 and 75 h.p. electric shift engines.
The subject puller jaw set, illustrated in Figure 1, was designed to remove the forward Electro-Magnet on both 40 and 75 h.p. electric shift motors.
This new puller jaw set does not include the puller shaft, pressing plate and extractor screw as required for pulling, but is readily adaptable to #378450 PULLER ASSEMBLY. Merely remove the jaws supplied with #378450 PULLER ASSEMBLY and install the new #379241 PULLER JAW SET.
This new tool is presently available from Out- board Marine Corporation Parts Depot at the following net price. COD orders are not accepted. Mail all orders to:
OUTBOARD MARINE CORPORATION PARTS DEPOT P.O. BOX 470 GALESBURG, ILLINOIS
PART NO. DESCRIPTION NET PRICE 379241 Puller jaw set $5.25
Do not order this tool from Johnson Motors nor from your Parts Distributor.
Figure 1 #379241 Puller Jaw Set
INSTRUCTIONS FOR ADAPTING #379241 PULLER JAW SET TO #378450 PULLER ASSEMBLY.
1. Remove the items identified as A, A1 and A2 - Figure 2, from #378450 puller assembly.
2. Install #379241 (item B-Figure 2) on the puller shaft (item C-Figure 2) securing assembly with pin attached to puller jaws. Puller is now ready for use.
NOTE: The pin, chained to #379241 PULLER JAW set is a special hardened pin and must always be used to secure this jaw and puller shaft assembly.
Items A1 and A2 - Figure 2, are not to be used with the Electro-Magnet puller jaw set #379241.
over
Factory figure-2 puller illustrationFactory figure-3 puller illustration
SB-923 Page 2
INSTRUCTIONS FOR ELECTRO-MAGNET REMOVAL.
1. Remove forward Electro-Magnet lead guard.
2. Remove forward Electro-Magnet lead covering hold down screw and washer. (PREVENTS POSSIBLE DAMAGE TO LEAD).
3. Insert puller jaws through center of Electro-Magnet - jaws must engage inner race of roller bearing assembly which is immediately behind Electro-Magnet. The outer race of this roller bearing assembly is not removed in this operation.
4. Install guide plate and extractor screw to puller shaft-proceed to pull roller bearing and Electro-Magnet with extractor screw - Figure 3.
The forward Electro-Magnet and roller bearing assembly are entirely suitable for reuse after removal, providing of course they were not damaged by improper removal or were not defective prior to removal.
JOHNSON MOTORS
Service Department
RC:eb
NOTE: Post on your RK-40 H.P. and V-75 indexes.

Related service tools

Puller jaw set 379241 adapts to puller assembly 378450. The bulletin lists the jaw set at a historical net price of $5.25. The original figures show the hardened retaining pin and removal setup.