Test Procedures
Motor Test No Load
1 Open the Hydraulic System Analyzer loading valve fully to read maximum pump flow at zero pressure
2 Select
Run
and/or
Record
"Recording Measurements to a File" on page 10
)
3 Put the motor’s control valve in the forward operating position If there are multiple valves, only one control valve should
be in an operating position at any one time
4 Using a tachometer, run the motor with no load The flow and RPM should match the manufacturer’s specification A
decrease in RPM from the manufacturer’s specifications indicates a loss of the motor’s efficiency
Motor Test Loaded
1 Open the Hydraulic System Analyzer loading valve fully to read maximum pump flow at zero pressure
2 Select
Run
and/or
Record
on the PC (see
"Recording Measurements to a File" on page 10
)
3 Put the motor’s control valve in the forward operating position If there are multiple valves, only one control valve should
be in an operating position at any one time
4 Using a tachometer, run the motor while providing a load on the motor The flow and RPM can now be checked against
the motor manufacturer’s specifications A decrease in RPM from the manufacturer’s specifications or the unloaded motor
test indicates a loss of the motor’s efficiency
Control Valve and Bi-directional Hydraulic Motor Test
Flo-Check
Figure 9: Control Valve and Bi-directional Hydraulic Motor Test
Motor Test No Load
1 Open the Hydraulic System Analyzer loading valve fully to read maximum pump flow at zero pressure
2 Select
Run
and/or
Record
on the PC (see
"Recording Measurements to a File" on page 10
8)
3 Put one control valve in the forward operating position If there are multiple valves, only one control valve should be in an
operating position at any one time
4 Using a tachometer, run the motor with no load The flow and RPM should match the manufacturer’s specification A
decrease in RPM from the manufacturer’s specifications indicates a loss of the motor’s efficiency
OTE:
N
This test can be repeated for the reverse direction
Motor Test Loaded
1 Open the Hydraulic System Analyzer loading valve fully to read maximum pump flow at zero pressure
2 Select
Run
and/or
Record
on the PC (see
"Recording Measurements to a File" on page 10
)
3 Put one control valve in the forward operating position (=If there are multiple valves, only one control valve should be in
an operating position at any one time
4 Using a tachometer, run the motor while providing a load on the motor The flow and RPM can now be checked against
the motor manufacturer’s specifications A decrease in RPM from the manufacturer’s specifications or the unloaded motor
test indicates a loss of the motor’s efficiency
Page 21
June 2022
TST-UM-02433-EN-02