Coolant Specification - Perkins WK 1300 Series EDi User Handbook Manual

5
1300 Series EDi Models WK to WS

Coolant specification

The quality of the coolant which is used can have a great effect on the efficiency and life of the cooling system.
The recommendations indicated below can help to maintain a good cooling system and to protect it against
frost and/or corrosion.
If the correct procedures are not used, Perkins cannot be held responsible for frost or corrosion damage.
1 If it is possible, use clean soft water in the coolant.
2 If an antifreeze mixture is used to prevent frost damage, it must have an ethanediol base (ethylene glycol)
with a corrosion inhibitor. It is recommended that the corrosion inhibitor is of the sodium nitrite/sodium
molybdate type. The antifreeze mixture must be an efficient coolant at all ambient temperatures and it must
provide protection against corrosion. It must also have a specification at least as good as the requirements of
either BS6580 or MOD AL39.
The quality of the antifreeze coolant must be checked at least once a year, for example, at the beginning of
the cold period. The coolant must be renewed every two years.
The antifreeze mixture must consist of equal quantities of antifreeze and water. Concentrations of more than
50% of antifreeze must not be used because these can affect adversely the performance of the coolant.
3 When frost protection is not necessary, it is still an advantage to use an approved antifreeze mixture
because this gives a protection against corrosion and also raises the boiling point of the coolant. If an approved
antifreeze mixture is not available, add a correct mixture of corrosion inhibitor to the water.
All 1300 Series EDi engines are supplied with a coolant filter / conditioner canister. Renew the coolant and the
filter / conditioner canister in accordance with the maintenance "Schedules" on page 18. Test the level of
coolant conditioner, and adjust if necessary in accordance with the maintenance "Schedules" on page 18.
User's Handbook, TPD 1352E, issue 4 31