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Home›Repair guides›FIGURE 5-5. HEAT EXCHANGER

Cummins/Onan — FIGURE 5-5. HEAT EXCHANGER

For these Cummins/Onan models: MCGBA, MCGCA, MCGDA, MCGDB, MCGGA, MDGDA, MDGDB, MDGDC, MDGDD.

Applies to: Cummins Onan Mcgba, Cummins Onan Mcgca, Cummins Onan Mcgda, Cummins Onan Mcgdb, Cummins Onan Mcgga, Cummins Onan Mdgda, Cummins Onan Mdgdb, Cummins Onan Mdgdc, Cummins Onan Mdgdd

Procedure

  1. 5-7 FUEL The engine runs on No.2 diesel fuel. See the engine Operation Manual for specifications for other ac- ceptable fuels. WARNING Diesel fuel is highly combustible. Do not smoke near fuel tanks and fuel lines. Keep flames and other ignition sources well away from fuel. Fuel Filters Change the fuel filters and drain water in accor- dance with the Maintenance Schedule in this sec- tion. When replacing filters, fill them with fuel and apply a film of fuel to the gasket. Screw the filter on by hand until the gasket just touches the filter head. Tighten the filter another 3/4 turn. See Figure 5-6. Bleeding System Air If it is necessary to bleed the fuel system of air ( be- cause of running out of fuel, changing filters, loose connections, etc.) loosen the fuel line fitting at the filter head and pump the priming lever on the fuel lift pump until fuel starts flowing from the fitting and is free of air. The fuel injection system is self venting and will probably not need to be bled. See the engine Op- eration Manual if it is necessary to bleed the fuel in- jection system. LOOSEN THIS FITTING TO BLEED AIR FUEL PUMP PRIMING LEVER FUEL FILTER FIGURE 5-6. BLEEDING THE FUEL SUPPLY LINE AND FILTERS Redistribution or publication of this document, by any means, is strictly prohibited.
  2. 5-8 AIR FILTER (ADMIRAL) Change the disposable air filter element in accor- dance with the Maintenance Schedule. The filter element is accessible by removing the end cover (Figure 5-7). AIR FILTERS (PLATINUM) Clean both air filters at the interval indicated in the maintenance schedule. Replace the air filters after they have been cleaned three times. Loosen the hose clamp to remove the smaller filter and the three retaining springs for the larger filter. Cover the inlet openings to prevent the entrance of dirt or debris. Keep spare filters for use while the other filters are drying. Clean the air filters as follows:
  3. 1. Run low pressure water, warm or cold, from in- side to outside. (Water should flow opposite the normal airflow direction.) Detergent can be used to clean the filter as long as the filter is thoroughly rinsed with clean water.
  4. 2. Always allow the air filter to dry before use. Do not use compressed air to dry a wet filter or damage to the filter could result. AIR FILTER FIGURE 5-7. AIR FILTER (ADMIRAL) RETAINING SPRING AIR FILTER HOSE CLAMP FIGURE 5-8. AIR FILTER (PLATINUM) Redistribution or publication of this document, by any means, is strictly prohibited.

Source: manual:960-0151B Onan MCGBA CA GA DA DB DA DB DC DD Operators Manual (6-2000) .pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.