John Deere 318 - Manual (Page 55)

IMPORTANT: Support the armature assembly on the
spring rivets when installing
bearing/hub assembly into armature
assembly, or damage to armature and
springs will occur.
10. Support armature on spring rivets and install
bearing/hub assembly into pulley hub with a press and a
2-15/16 in. driver disk.
11. Install snap ring.
M32120
-UN
-03AUG89
12. Inspect field coil for wear or damage. Replace if
necessary.
13. Test field coil for electrical continuity.
Early version:
—Attach field coil lead to positive (+) terminal of a
charged storage battery.
—Set coil base on negative (—) battery terminal.
—Put a steel bolt across coil. Electromagnetic action will
hold bolt to coil if coil is good. If bolt does not stick
to coil, replace the coil.
Later version:
—Attach a jumper wire from one terminal of two-pin
connector to negative (—) battery terminal.
—Attach another jumper wire from the remaining terminal
Early Version
of two-pin connector to positive (+) battery terminal.
—Put a steel bolt across coil. Electromagnetic action will
hold bolt to coil if coil is good. If bolt does not stick
to coil, replace the coil.
Later Version
M32118
-UN
-03AUG89
M77321
-UN
-25JAN95
MX,15904005,6 -19-14DEC94
MX,15904005,7 -19-19JAN95
Front PTO Clutch/Disassemble, Inspect and Assemble
TM1590 (17MAY95)
40-05-3
316, 318 & 420 Lawn and Garden Tractors
020895
40
05
3