Visual Inspection; Water Temperature Regulator - Test - Perkins 4008-30 SD8 Systems Operation, Testing And Adjustment

M0064276
Illustration 14
Typical example
1. Make a blanking plate (1). Make a blanking plate
with a connection for an air pipe.
2. Fill the oil cooler with clean hot water until the
water is level within the outlet flange.
3. Install new joints to blanking plates (1) and (3).
Install blanking plates (1) and (3) to the oil cooler.
4. Connect compressed air to the oil cooler. Use
Tooling (A). Set the pressure at 345 kPa (50 psi).
The pressure should stay constant for three
minutes.

Visual Inspection

Cooling systems that are not regularly inspected are
a cause for increased engine temperatures. Make a
visual inspection of the cooling system before a test
is made with test equipment.
Pressurized System: Hot coolant can cause seri-
ous burns. To open the cooling system filler cap,
stop the engine and wait until the cooling system
components are cool. Loosen the cooling system
pressure cap slowly in order to relieve the
pressure.
1. Check the coolant level in the cooling system.
Read the two indicators for the coolant level in the
top of the radiator (if equipped).
2. Look for leaks in the system.
3. Look for bent core fins or debris between the fins
of the radiator (if equipped). Be sure that air flow
through the radiator is not restricted.
4. Check for damage to the fan blades (if equipped).
5. After the engine is cool, remove the filler cap
slowly. This will allow any pressure out of the
cooling system. Inspect the filler cap and the
surface that seals the cap. This surface must be
clean and the seal must not be damaged.
6. Check the pressure relief valve. Contact your OEM
for further information.
Water Temperature Regulator -
Test
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Personal injury can result from hot coolant,
steam and alkali.
At operating temperature, engine coolant is hot
and under pressure. The radiator and all lines to
heaters or the engine contain hot coolant or
steam. Any contact can cause severe burns.
Remove filler cap slowly to relieve pressure only
when engine is stopped and radiator cap is cool
enough to touch with your bare hand.
Cooling System Conditioner contains alkali.
Avoid contact with skin and eyes.
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Note: This information only applies to engine-
mounted fresh water temperature regulators.
1. Remove the water temperature regulator from the
engine.
2. Heat the coolant gradually in a suitable container.
3. Hang the water temperature regulator in the
container of coolant. The water temperature
regulator must be below the surface of the coolant
and away from the sides and the bottom of the
container.
4. Keep the coolant at the correct temperature for 10
minutes. The opening temperature of the water
temperature regulator is 84° C (183° F).
5. After 10 minutes, remove the water temperature
regulator. Ensure that the valve on the water
temperature regulator is fully open.
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Cooling System
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