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TROUBLESHOOTING & REPAIR
F-57 F-57
RANGER 8
OUTPUT RECTIFIER BRIDGE REMOVAL
AND REPLACEMENT (continued)
12. With the 3/8” wrench and slot head screw
driver, remove the four mounting screws
(two on each side). Note the placement of
the nylon insulators. These must be in
place when you reinstall the rectifier
bridge assembly in order to electrically
insulate the bridge from the choke lam-
ination assembly.
13. Remove the rectifier assembly by tilting it
up and lifting it toward the front of the
machine.
14. Reassembly: Refer to the Wiring Diagram
for proper connections to the positive and
negative sides of the rectifier assembly.
The two sides of the bridge are marked +
and -, respectively.
NOTE: Use Dow Corning 340 on all aluminum
electrical connection surfaces.
15. With the 3/8” wrench and slot head screw
driver, install the four mounting screws
(two on each side). Note the placement of
the nylon insulators. These must be in
place when you install the rectifier
bridge assembly in order to electrically
insulate the bridge from the choke lam-
ination assembly.
16. With the 7/16” socket wrench, install the
S2 lead and the heavy lead going to the S1
Range switch. Note the order of fasteners:
flat washer at the bottom followed by pig-
tails, heavy leads, flat washer, lock wash-
er, and nut.
17. With the 7/16” socket wrench, install the
W1 lead and the heavy lead going to the
S2 Polarity switch. Note the order of fas-
teners: flat washer at the bottom followed
by pigtails, heavy leads, flat washer, lock
washer, and nut.
18. With the 1/2” socket wrench, install the
heavy cable and the #8 lead (Blue) to the
rectifier negative heat sink. Note the order
of fasteners: bolt and flat washer from the
bottom up through the heat sink; on top,
leads, flat washer, lock washer, and nut.
19. With the 1/2” socket wrench, install the
choke lead and the #10 lead (Blue) to the
rectifier positive heat sink. Note the order
of fasteners: bolt and flat washer from the
bottom up through the heat sink; on top,
leads, flat washer, lock washer, and nut.
20. Reinstall the case side, fuel cap, lift bail
gasket, case top, and spark plug wire.