GENERAL MAINTENANCE
11
Air Intake Rotary Screen
Rotate the rotary screen to assure screen sections are not
damaged, out of place, or missing
(see figure 11.1). Also check
screen rollers for freedom of movement, brush condition, and
the external rubber seal condition. Lift the rubber seal and
inspect the yellow wear strip for deterioration or excessive wear
while rotating screen
(see figure 11.2).
Air Conditioning
Operators must be sure not to cover the cab air conditioner
re-circulation filter behind the seat. The area can become a
“catch-all” and the filter becomes covered up with jackets,
lunches, paper towels, etc. Keep the area clean for best air
quality conditions.
Bio-diesel Fuel
The use of bio-diesel fuel is on the rise. A bio-fuel blend, up to
a maximum of 5% (B5) has been approved for use in Case IH
diesel engines. While bio-diesel has distinct advantages such
as its clean burning characteristics, users of bio-diesel should
be aware of some specific conditions.
• Bio-diesel blends attract more moisture, and may require
more frequent water separator draining
• Bio-diesel should not be left in engines that are stored more
than four months
• A lower cloud point may contribute to harder cold-weather
starting, making bio-diesel less attractive than conventional
diesel fuel for winter use
• Depending on fuel quality, more frequent filter changes may
be required
In addition to low-emissions, some other bio-diesel advantages
include:
• Bio-diesel mixes well with conventional diesel fuel
• Oil change intervals remain unchanged are not affected with
bio-diesel use
As with all other fuels, purchase high quality bio-diesel fuel
from known reputable suppliers to assure trouble-free combine
operation.
Wheel Bolt Torque
Wheel bolt torque must be checked when new and periodically
thereafter. Refer to the Operator’s Manual for correct torque
for your combine. An accurate torque wrench is necessary to
confirm correct tightening values.
Welding on Combines
Microcomputers and solid state electrical components have
become a way of life, and today’s combines are no exception.
This makes it essential that special precautions be taken
prior to welding ANYWHERE on the combine. Solid state
components have little tolerance for errant voltage. The high
current flow during the welding process can damage sensitive
controllers and components on the combine, with disastrous
consequences.
• Disconnect ALL battery cables prior to welding. This includes
positive AND negative cables.
(The electrical system uses
two 12-volt batteries connected in parallel. This means that
both positive cables connect to the electrical system, and
both negative cables connect to ground.)
• Follow Operator’s Manual safety instructions for cable removal,
disconnecting negative cables first, and re-connecting negative
cables last
Corn Head Stalk Roll Bearing Maintenance
(Older Corn Heads prior to 1993)
Corn heads built since 1992 have sealed front stalk roll
bearings. Older heads required consistent maintenance and
correct adjustment to achieve the best possible bearing life.
1. Grease the stalk rolls with Case IH 251H EP grease every
four operating hours.
2. Add grease until excess flows from the bearings to flush dirt
and debris from bearings.
3. Adjust the height of the divider points to provide clearance
between the roll points and the ground. Avoid running the
head extremely low and allowing the rolls to contact the
soil surface.
4. Thoroughly grease the bearings before storing the corn head.
Figure 11.1
Figure 11.2
To Next Page
Loading...
Need help?
General
