34

Maintenance Section

Cooling System Specifications

Table 22

Caterpillar SCA Requirements for SCA and

Water Cooling Systems

Cooling System

Caterpillar SCA

Caterpillar SCA

Capacity

at Initial Fill

at 250 Hours

 

 

 

22 to 30 L

1.75 L (64 fl oz)

0.44 L (15 fl oz)

(6 to 8 US gal)

 

 

 

 

 

31 to 38 L

2.30 L (80 fl oz)

0.57 L (20 fl oz)

(9 to 10 US gal)

 

 

 

 

 

39 to 49 L

3.00 L (100 fl oz)

0.75 L (25 fl oz)

(11 to 13 US gal)

 

 

 

 

 

50 to 64 L

3.90 L (128 fl oz)

0.95 L (32 fl oz)

(14 to 17 US gal)

 

 

 

 

 

65 to 83 L

5.00 L (168 fl oz)

1.25 L (42 fl oz)

(18 to 22 US gal)

 

 

 

 

 

84 to 110 L

6.60 L (224 fl oz)

1.65 L (56 fl oz)

(23 to 29 US gal)

 

 

 

 

 

111 to 145 L

8.75 L (296 fl oz)

2.19 L (74 fl oz)

(30 to 38 US gal)

 

 

 

 

 

146 to 190 L

11.50 L

2.88 L (98 fl oz)

(39 to 50 US gal)

(392 fl oz)

 

 

 

 

191 to 250 L

15.00 L

3.75 L (128 fl oz)

(51 to 66 US gal)

(512 fl oz)

 

 

 

 

Refer to Table 23 for part numbers and for quantities of SCA.

Table 23

Cooling Systems with Larger Capacities

Adding the SCA to Water at the Initial Fill

Use the equation that is in Table 24 to determine the amount of Caterpillar SCA that is required at the initial fill. This equation is for a mixture of only SCA and water.

Table 24

Equation For Adding The SCA To Water

At The Initial Fill

V × 0.07 = X

V is the total volume of the cooling system.

X is the amount of SCA that is required.

Table 25 is an example for using the equation that is in Table 24.

Table 25

Example Of The Equation For Adding The SCA

To Water At The Initial Fill

Total Volume

Multiplication

Amount of SCA

of the Cooling

Factor

that is Required

System (V)

 

(X)

 

 

 

946 L

× 0.07

66 L

(250 US gal)

 

(18 US gal)

 

 

 

Caterpillar Liquid SCA

Part Number

 

Quantity

 

 

6V-3542

0.24 L (8 oz)

 

 

 

111-2372

0.36

L (12 oz)

 

 

 

8T-1589

0.47

L (16 oz)

 

 

 

3P-2044

0.94

L (32 oz)

 

 

 

8C-3680

19

L (5 US gal)

 

 

 

5P-2907

208

L (55 US gal)

 

 

 

 

Maintain the SCA in the same way as you would maintain a cooling system that uses heavy-duty coolant/antifreeze. Adjust the maintenance for the amount of SCA additions. See Table 22 for the amount of SCA that is required.

Adding the SCA to Water for Maintenance

For the recommended service interval, refer to the Operation and Maintenance Manual, “Maintenance Interval Schedule” for your engine.

Use the 8T-5296Coolant Conditioner Test Kit to test the concentration of SCA. Make the following modifications to Steps 3 and 5 of the 8T-5296Coolant Conditioner Test Kit instructions:

STEP 3 – Add tap water to the vial up to the “20 ml” mark.

STEP 5 – When the defined procedure is used, a concentration of six to eight percent will yield between 20 drops and 27 drops. If the number of drops is below 20 drops, the concentration of SCA is low. If the number of drops is above 27 drops, the concentration of SCA is high. Make the appropriate adjustments to the concentration of SCA.

Test the concentration of SCA or submit a coolant sample to your Caterpillar dealer. See this publication, “S·O·S Coolant Analysis” topic (Maintenance Section).