Case 621D Wheel Loader Operator's Manual Brz 6-39500 NA - PDF DOWNLOAD

Page 107

OPERATING INSTRUCTIONS

OPERATING IN COLD WEATHER Cold weather conditions cause special problems. During these conditions your machine will require special start up, and warm up, and maintenance procedures for the best performance. Proper cold weather maintenance will extend the service life of your machine. 3. FUEL SYSTEM - Check with your fuel supplier for the correct cold weather fuel. Engine power will be reduced if wax particles are in the fuel filters.

1. BATTERIES/ELECTRICAL SYSTEM - Clean the batteries and make sure the batteries are at full charge. NOTE: A fully charged battery at -17˚C (0˚F) has only 40 percent of the normal starting power. At -29˚C (-20˚F) the battery has only 18 percent of the power remaining. Inspect the batter y cables and terminals. Clean the terminals and apply electrical terminal sealers ( s e e y o u r d e a l e r ) t o p r eve n t corrosion.

4. COOLING SYSTEM - Check the coolant mixture before you operate in cold temperatures. A mixture of 50% ethylene glycol and 50% water must be used in this machine. This mixture is used if the lowest ambient temperature is above -37˚C (-34˚F). If the ambient temperature is lower, adjust the mixture. It is recommended that ethylene glycol and water be used in your machine all year (See Engine Cooling System in this manual).

If you add water to the batteries and the temperature is below 0˚C (32˚F),make sure you charge the batteries or run the engine for approximately two (2) hours. This procedure will prevent batter y freezing (see Batteries and Booster Battery Connections in this manual.

5. COLD TEMPERATURE STARTING AIDS See your dealer for extra starting aids (see Cold Weather Starting in this manual).

Inspect the batter y cables and terminals. Clean the terminals and apply electrical terminal sealer (see your dealer) to prevent corrosion. 2. LUBRICANTS - Make sure you follow the recommended oil and filter service for the engine and the hydraulic system as shown in this manual. Use the correct viscosity oil in each component for the ambient temperatures the machine is operated in (see Lubrication in this manual).

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TRIM THIS EDGE Brz 6-39500NA RIGHT PAGE

TRIM THIS EDGE

Check for water in the fuel system. Cold temperatures can cause condensation to form in the fuel tank. Check the fuel filter for water.


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