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HYDRAULIC PUMP FLOW TEST - Continued
PILOT PUMP FLOW TEST

Technical Manual For Hydraulic Excavator Model 330Lcr 1
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TM 5-3805-281-24-1
Tests
12. Adjust the flow meter loading valve to obtain the
specified test pressures.
13. Adjust engine speed to the specified rpm.
14. Record pump flow at each pressure.
If pump flow in low, repair or replace pump. (See
procedure in Group 3360.)
One New Pump--Specification
Flow Rate ....................................................... 265 4 L/min (70 1 gpm)
typical flow at 13 790 kPa (138
bar) (2000 psi)
Flow Rate ....................................................... 235 4 L/min (62 1 gpm)
typical flow at 20 685 kPa (207
bar) (3000 psi)
One Used Pump--Specification
Flow Rate ..................................................... 212 15 L/min (56 4 gpm)
minimum flow at 13 790 kPa (138
bar) (2000 psi)
Flow Rate ..................................................... 189 15 L/min (50 4 gpm)
minimum flow at 20 685 kPa (207
bar) (3000 psi)
9025
25
127
CED,TX08227,3144
1929MAY986/6
6-274


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