International Harvester Company CUB Operator's Manual page 32

ELECTRICAL SYSTEM
DISTRIBUTOR AND COIL UNIT. Continued
Greasing the Breaker Mechanism and Checking the P.oints
.Continued
Illust.31
Distributor partially disossembled for servicing.
Check the condition of the breaker points
for build-up or lip formation. If present, the
points must be dressed before the point open-
ing can be checked or set. Check the opening
between the breaker points with a feeler gauge
as shown in Illust. 30A. The point opening should
be .020 inch when the rubbing block is on the
high part of the cam. If the opening is not
correct, adjust it by loosening the screw hold-
ing the adjustable point. Then move the point
toward or away from the point on the breaker
arm until the gauge slips snugly into the open-
ing. After the adjustment has been made,
tighten the screw.
If the spark plug cables have been removed
for any reason, attach the cables to the spark
plugs and to the terminal sockets of the dis-
tributor cap in the following order: The No. I
cylinder spark plug cable to'the socket marked
"l" in Illust.31A. Then, going around the dis-
tributor cap in a clockwise direction, attach
the cable from the No.3 spark plug to the
next or second socket, the cable from the No.
4 spark plug to the next or third socket, and
the cable from the No.2 spark plug to the
fourth or last socket. Assemble the secondary
cable "A" in the distributor cap. See Illust. 31A.
Distributor Cap
Every three or four months, remove the
distributor cap and examine the inside. If any
dust, moisture, or oil deposits are present,
thoroughly clean and wipe dry. Also see that
the distributor rotor is kept clean.
If the terminal nipples are removed, be
sure the distributor cap terminals and coil
terminal are clean and dry. The distributor
is equipped with these nipples to prevent any
external electrical leakage when the tractor
is operating under adverse conditions.
Illust. 31A
Distributor wiring ond lubrication.