ENGINE AR 7C6842 - Caterpillar

7C6842 ENGINE AR Caterpillar parts 3406B

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Alternative (cross code) number:
CA7C6842
7C-6842
7C6842

Weight: 21 pounds 9 kg.

Buy ENGINE AR 7C6842 Caterpillar genuine, new aftermarket tractor parts with delivery
INDUSTRIAL ENGINE,

Compatible equipment models: 7C6842:

INDUSTRIAL ENGINE 3406B Caterpillar

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Table 1
Method for determining flow loss
Pump flow at 690 kPa (100 psi)
− Pump flow at 6900 kPa (1000 psi)
Flow loss
Table 2
Example of determining flow loss
217.6 L/min (57.5 US gpm)
− 196.8 L/min (52.0 US gpm)
20.8 L/min (5.5 US gpm) Flow loss is used as a measure of pump performance. Flow loss is expressed as a percentage of pump flow.
Table 3
Method of determining percent of flow loss
Flow loss (L/min or US gpm) × 100 = Percent of flow loss
Pump flow at 690 kPa (100 psi)
Table 4
Example of determining percent of flow loss
20.8 L (5.5 US gal) × 100 = 9.5%
217.6 L/min (57.5 US gpm) If the percent of flow loss is more than 10%, the pump performance is inadequate.Note: The values in the examples are not set values for any specific pump or for any specific pump condition. Refer to the Specifications for the specific machine.Test On The Machine
Install a 5P-3600 Hydraulic Flow Meter on the pressure side of the pump. Run the engine at high idle. Measure the pump flow at 690 kPa (100 psi), and at 6900 kPa (1000 psi). Use these values in the following formula (table 5).
Table 5
Method of determining percent of flow loss
Flow loss (L/min or US gpm) × 100 = Percent of flow loss
Pump flow at 690 kPa (100 psi) Test On The Bench
If the test bench can be run at 6900 kPa (1000 psi) and at full pump rpm, determine the percent of flow loss by using the following formula (table 6).
Table 6
Method of determining percent of flow loss
Flow loss (L/min or US gpm) × 100 = Percent of flow loss
Pump flow at 690 kPa (100 psi) If the test bench cannot be run at 6900 kPa (1000 psi) at full pump rpm, run the pump shaft at 1000 rpm. Measure the pump flow at 690 kPa (100 psi) and at 6900 kPa (1000 psi). Use these values in the top portion of the following formula (table 7). For the bottom part of the formula, run the pump shaft at 2000 rpm. Measure the pump flow at 690 kPa (100 psi).
Table 7
Pump flow at 690 kPa (100 psi)
− Pump flow at 6900 kPa (1000 psi) × 100 = Percent of flow loss
Pump flow at 690 kPa (100 psi) and at 2000 rpm