f. If base (8) has been removed from tank, assemble by holding pump in vise upside down; insert bypass (closed
end first) into cavity in pump housing; stack spring on bypass; use a small quantity of grease on check valve to
hold it in position during assembly of base to housing.
g. Hold base down against pump housing, align gasket with screw holes and replace screws (14).
8-2 FUEL TRANSFER MOTOR (Figure 8-1)
8-2.1 Motor Protector and Line Switch.
a. To check continuity or replace motor protector (41) or line switch (44), disconnect power at battery and junction
box. Remove cover assembly (51) exposing both parts.
b. If continuity is not present across both terminals of motor protector, the motor has overheated in which case it
will feel hot, or the contacts are not in their normally-closed position, and the motor protector should be
replaced.
c. To replace protector, loosen screw (43), move retaining clip (42) out of the way, withdraw protector and pull
wires from terminals. When reconnecting wires to new protector, connect black wire from upper brush
assembly (28) to top protector terminal and while wire from line switch terminal B to bottom protector terminal.
(See wiring diagram). Insert protector in housing (38) and tighten in place with clip (42).
d. To check continuity or replace line switch (44), remove keps nuts (47) and pull out switch; wires attached to
terminals are of sufficient length to permit withdrawal far enough to expose back of switch. Check switch for
continuity in "on" and "off" position; with switch "on", continuity should be established between terminals A & B,
C & D. If continuity exists with switch "off" or does not with switch "on", the switch should be replaced.
e. To replace switch, pull wires from terminals, note orientation of switch to switch plate, remove locknut (46) and
install new switch on plate. Reconnect wires to terminals. Reattach switch and plate assembly to protector
housing (38).
f. Reinstall switch cover assembly, making sure slot in yoke (53) fits over toggle switch stem.
8-2.2 Brush Replacement.
a. To replace bushes, remove pump cover (15), rotor (18), vanes (19) and seal (20-25). Remove switch cover
(51) and pull black wires from top terminal of motor protector (41) and terminal D of motor switch. Remove tie
rods (35), motor end cover (34) and magnet barrel (32). Armature (31) should come off with magnet barrel.
Remove brush holder (26) and replace brushes. Not position of springs (27) before removing to insure proper
reassembly.
b. Reassemble in reverse order; make sure locating slot in magnet barrel is aligned with locating pin (36) before
pressing magnet barrel into pump housing (4); connect
8-2
