SYSTEM PRESSURES
FUNCTION PRESSURE
PSI
Hydraulic function 2600
Standby pressure 325
Hydraulic steering pressure 2500
Differential lock pressure 400
Park brake pressure 400
Circle lock pressure 400
Brake accumulator pressure 1000
Transmission declutch pressure 800
FUELS AND LUBRICANTS
FUEL SPECIFICATIONS
Use only clean, high quality fuel
Use Grade No. 2-D fuel above 4°C (40°F)
Use Grade No. 1-D fuel below 4°C (40°F)
Use Grade No. 1-D fuel for all air temperatures at
altitudes above 5,000 ft. (1500 m)
NOTE: If sulfur content exceeds 0.5%, change
the engine oil at ½ the normal interval.
STORING FUEL
If there is a very slow turnover of fuel in the fuel
tank or supply tank, it may be necessary to add a
fuel conditioner to prevent water condensation.
Contact your authorized dealer for proper service
or maintenance recommendations.
Do not use galvanized container to store diesel fuel.
NOTE: Diesel fuel stored in galvanized
containers reacts with zinc coating to
form zinc flakes. If fuel contains water,
a zinc gel will also form. The gel and
flakes will quickly plug fuel filters and
damage fuel injectors and fuel pumps.
Do not use brass-coated containers. Brass is an
alloy of copper and zinc.
FUEL TANK
CAUTION: Do not fill fuel tank if engine is hot.
CAUTION: Do not smoke while filling fuel tank
or working on fuel system.
Shut off engine and fill the fuel tank at the end of
each day to avoid condensation.
ENGINE OIL
The oil should meet API Service Class CE or CD.
Additives are not required and are not
recommended.
TRANSMISSION
CITCO transguard THF lo temp
GREASE
SAE multi-purpose EP Grease
LUBRICANT STORAGE
Whenever possible, store lubricants and containers
in an area protected from dust, moisture, and other
contamination. Store containers on their side to
avoid water and dirt accumulation.
MIXING LUBRICANTS
Avoid mixing different brands or types of oil. Oil
manufacturers blend additives in their oils to meet
certain specification and performance
requirements. Mixing different oils can interfere with
the proper functioning of these additives and
degrade lubricant performance.
HEATER SHUTOFF
Hot water to the heater should be turned off in the
summer. Close the heater shutoff valve located by
the lower water inlet.
PERIODIC MAINTENANCE
GENERAL
1. Use only recommended fuels and lubricants to
prevent machine damage.
2. Use the hour meter to determine when your
machine needs periodic maintenance.
NOTE: Intervals on the periodic maintenance
chart are for operating in normal
conditions. If the machine is operating
in difficult conditions, machine should
be serviced at shorter intervals.
3. Perform service on items at multiples of the
original requirement. For example, at 500 hours,
also service these items, if applicable, listed
under 250 hours, 100 hours and 50 hours.
Section 4
MAINTENANCE
4-4
785 Motor Grader
Courtesy of Machine.Market
To Next Page
Loading...
