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Page Title:
PUMP EFFICIENCY TEST (ON MACHINE) |
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 TM 5-2410-237-23
HYDRAULIC SYSTEM TESTS - CONTINUED
0227 00
PUMP EFFICIENCY TEST (ON MACHINE)
1.
Install flow meter.
2.
Start engine and run at 2000 RPM.
Measure pump flow at 100 psi (7.0 kg/cm2) with engine at 2000 RPM.
3.
Measure pump flow at 1000 psi (70.3 kg/cm2) with engine at 2000 RPM.
4.
5.
Calculate percentage of flow loss using the following formula:
gpm @ 100 psi - gpm @ 1000 psi x 100 =
Percentage of flow loss
gpm @ 100 psi
6.
If percentage of flow loss is more than 10%, pump performance is not sufficient.
RESTORING EQUIPMENT
1.
Remove all test equipment and install any removed plugs.
2.
Check oil level in hydraulic tank. Add oil as needed. Bleed air from system (WP 0225 00).
3.
Operate tilt, lift and ripper (if equipped) circuits and check for proper operation (TM 5-2410-237-10).
4.
Shut off engine and check for oil leaks.
5.
Recheck oil level in hydraulic tank (WP 0225 00).
6.
Install floor plates (WP 0171 00).
END OF WORK PACKAGE
0227 00-9
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