Air Cleaning System; Fan Hub Lubrication; Oil Cup Service; Genera Tor Belt - International Harvester Company CUB Operator's Manual

COOLING SYSTEM
GENERA TOR BELT
After the fan belt tension has been adjusted,
move the generator toward or away from the
engine to get the correct generator belt tension;
then tighten nuts I'A'! and "B" (1IIust. 23A). The
generator belt should be tight enough as not to
allow slippage, but not so tight as to cause
side thrust on the generator bearing. Allow
1/4 -inch slack. See Illust. 23.
FAN HUB LUBRICATION
Every six months or after every 500 hours
of operation, whichever occurs first. remove
oil retainer screw !'F'! (II lust. 23A) and turn
the fan assembly so that the oil filler hole is
at the right horizontal posit~on. Add engine oil
until the oil reache s the level of the hole. Now
turn the assembly so that the hole is on the
bottom and allow any excess oil to drain out.
The oil is then up to level of the top of the
stand pipe (approximately 1-1/2 ounces). See
Illust.24. Replace the oil retainer screw and
Illust.24
Fan hub partially disassembled showing oil level.
be sure that the retainer screw gasket is in
place.
Note: The rubber gasket located behind the
hub at I'E'I (1IIust.23A) is used for shipping pur-poses
only. It does not have to be replaced
when worn out.
'f
Clean air for combustion is assured by an
oil-type air cleaner. A heavy screen in t~1e
air intake cap prevents large particles from
entering the air cleaner. The air then passes
to the oil cup where it goe s through a bath of
oil. As the air rises to the intake manifold, it
passes through a series of oil-bathed screens
and the fine dust is removed. As the oil from
the screen works back down, it carries the
dirt with it and settle s in the oil cup. Hever allow
dirt to build up in the cup more than 1/2-inch deep.
OIL CUP SERVICE
Clean and refill the oil cup every day J or
every 10 houirs of operation (more frequently
when operating under dusty conditions). Refill
the oil cup to the oil level bead with the same
grade of oil used in the engine crankcase. For
the oil cup capacity J refer to page 65.
Do not remove the oil cup while the engine
is operating. Before replacing the oil cup,
clean or wipe oil or grit from the top bead of
the oil cup.
Illust.24A
Servic ing the oi I cup.
24