Cockshut 30 - Ignition Coil; To Adjust Charging Rate of Third Brush

• •
Operating Instructions for Cock shutt "30" Tra ctor
27
CAUTION - During the weekly inspection, check the terminals for tightness and the
cables
for corrosion and wear.
IG
NITIO N COIL - The ignition coil serves to step up the low battery voltage to the high
vol
ta ge necess ar y to jump the spark plug gaps.
Due to
their construction, ignition coils do not requir e any service oth er than to
keep all connections
and terminals clean and tight.
• 69
2
TO ADJUST CHARGING RATE
OF THIRD BRU SH
Third b rush is sh own set
3.2 commutator bars hom
main brush.
Main brush
(ground ed)
~
Commutator bar
PLATE
No.
C-23-46
•
.
•
TO ADJUST CHARGE RATE OF THIRD BRUSH
PLATE No. C -23-4 6
(1) Remove cover band as indicated by
arrow (1). Loosen round head screw on commu-
tator and bearing casting until lock wash e r tension i s released. As indicated by
arrow (2). DO NOT TRY TO REMOVE THIS SCREW.
(2) Change the charging
ra te by moving the third brush as indicated by arrow (3) .
(This b
rus h is the one mounted on a moveable carrier, whereas the other main brush-
es
are mounted directly on the end bearing casting.) To increase move brush in direc-
tion of rotation of the
armature, to decrease move brush in the opposite direction.
(3) The maximum
rate for the six-volt generator is 9 to 11 amperes when "Hot" and 13·
to 16 amperes when "Cold" with switch in the high charge position and no electrical
load. DO NOT
SET BEYOND THESE LIMITS.
(4) When the above
adj ustments are completed, be sure to tighten the round head screw
as indicated by
arrow (2) which locks the third brush carri er in place. .
(5) Reassemble
the cover band as indicated by arrow (1) making sure the joint is not
over
any opening.
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