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32 Owner’s Manual for Stationary Emergency Generators
5.7.5— Check Coolant Level and Hoses
Do not add coolant when the engine is hot. Steam and scalding fluids can cause severe burns.
1. Verify that the coolant level is between the HOT and COLD marks on the overflow reservoir. See Figure 5-6.
NOTE: Coolant expands when hot, so the level may be higher than the HOT mark. Do not add coolant higher
than the HOT mark.
2. If the coolant level is below the COLD mark, remove fill cap from overflow reservoir and add coolant. See Sub-
section 2.5 —Coolant Water Treatment.
3. Check coolant hoses for leaks. Tighten hose clamps, if necessary.
4. Check hoses for nicks, cuts, tears or general deterioration. Replace as necessary.
Figure 5-6. Coolant Overflow Reservoir
5.7.6— Check Radiator for Clogging
1. Direct beam of flashlight into enclosure to inspect the radiator fins.
2. Look for debris, accumulations of dirt or other deposits.
3. Carefully remove any debris from radiator fins. Use warm soapy water and a soft bristled brush to remove dirt
and other deposits, if necessary.
5.7.7— Check Lubricating Oil Level and Drain Hose
NOTE: If changing engine lubricating oil and filter, see Subsection 5.7.8—Replace Lubricating Oil and Oil Fil-
ter.
1. If the engine was running, allow at least 10 minutes to elapse to ensure that the oil has fully drained into the oil
pan.
NOTE: The most accurate oil level readings are obtained when the engine is cold.
2. Remove the dipstick and wipe dry with a clean, lint free cloth. See B of Figure 5-7
3. Slowly insert the dipstick into the dipstick tube.
4. Verify that the dipstick is fully seated in the dipstick tube.
NOTE: Some dipsticks require more effort to fully seat than others.
5. Allow at least 10 seconds to elapse.
6. Slowly remove the dipstick.
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