Replacing Coolant Conditioner (7800)The engine is equipped with a coolant conditioner filter (A). Filter element contains chemicals to prevent corrosion, scaling and other cooling system problems. Replace element at hourly interval stated in Section "Lubrication, Periodic Services" to maintain proper chemical concentration. Also replace element if coolant level indicator light lights up.
IMPORTANT: Do not use a coolant system sealing additive as it would plug the filter. Whenever replacing coolant, replace coolant filter-conditioner as well. IMPORTANT: If coolant must be added due to leakage (loss of coolant 4 L; 1 U.S. gal or more), replace filter element immediately. Close shut-off valve (B). Remove filter element (A). Dispose of it properly. Lubricate filter gasket on new element with oil. Tighten element until it contacts base, then another 1/2 to 3/4 turn. Do not overtighten. Open shut-off valve (B). Check for leaks after starting the engine. |
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CAUTION:
Do not service coolant filter when engine is hot.
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