TM 5-3805-281-24-1
Tests
HYDRAULIC PUMP FLOW TEST
SPECIFICATIONS
SERVICE EQUIPMENT AND TOOLS
50 5C (120 10F)
Hydraulic Oil Temperature
JT07290 Laptop Computer
2000 10 rpm
Engine Speed
JT07274F Excavator Diagnostics Program Disk
Work Mode Selector Position
Dig Mode
JT07273 Cable
E Mode Switch Position
Off
JT02156A Digital Pressure and Temperature Analyzer
HP Mode Switch Position
Off
JT02160 Transducer 70 000 kPa (700 bar) (10 000 psi)
Auto-Idle Switch Position
Off
Gauge 70 000 kPa (700 bar) (10 000 psi)
265 4 L/min (70 1 gpm)
One New Pump Flow Rate
JT05800 Digital Thermometer
typical flow at 13 790 kPa (138
JT05801 Clamp-On Electronic Tachometer
bar) (2000 psi)
235 4 L/min (62 1 gpm)
One New Pump Flow Rate
Test is used to determine pump condition and should
typical flow at 20 685 kPa (207
be performed only if a comparison of actual machine
bar) (3000 psi)
cycle times to specified cycle times indicates low pump
212 15 L/min (56 4 gpm)
One Used Pump Flow Rate
flow.
minimum flow at 13 790 kPa
(138 bar) (2000 psi)
189 15 L/min (50 4 gpm)
One Used Pump Flow Rate
minimum flow at 20 685 kPa
(207 bar) (3000 psi)
ESSENTIAL TOOLS
202862 (3/4-16 M 37 x 3/4-16 F 37 Sw x 7/16-20 M 37) Tee
JT05484 (7/16-20 F 37) (Parker No. X06CP-4) (3 used) Cap
TH100951 (PF 1/4 x 7/16-20 M 37) (4 used) Elbow
9025
3/8 x 24 in. x 7/16-20 F Sw 37 Hose
25
JT03387 (SAE Code 62 Split Flange High Pressure 1 SF x
122
1-5/16-12 M 37) Flange Fitting
JT03389 (SAE Code 62 Split Flange High Pressure 3/4 SF x
1-1/16-12 M 37) 90 Flange Fitting
TH108325 (1 M BSPP ORB x --16 M ORFS) Elbow
JT03452 Split Flange Connector Plate Kit
TH108328 Adapter (2 used)
XPD34BTX (1/8 x 7/16-20 F 37) Male Quick Coupler
Continued on next page
CED,TX08227,3144
1929MAY981/6
