Tool Condition Test
Test Conditions
Temperature Pulse unit: approximately 20° C.
Dynamic air pressure: 6.3 bar (91 psi).
Hose size: Ø 13 mm Hose length: 3 m
A | Static Torque transducer SRTT |
B | ST Analyzer (set at 850 Hz) |
Test the free speed in the forward direction with the tachometer.
Make sure that the tool runs on full speed regardless of AutoTrim or Trim setting. If the tool is used with AutoTrim, also test the AutoTrim function.
Test the maximum torque and pulse frequency by setting the filter frequency in ST Analyzer to 850 Hz.
Test the max torque and pulse frequency in reverse direction using an SRTT static torque transducer. Tightening time approximately 1 second.
Check the shut-off mechanism.
Perform some tightenings to make sure that the tool shuts off correctly.
A tool in good condition should achieve the following values:
Model | Free speed (rpm) | Pulse frequency CCW static (Hz) | Max Torque CCW static (minimum) (Nm) |
|---|---|---|---|
EP15PTX250 HR20-AT | 4200 -10%/+25% | 12-15 | 300 |
Correct pulse frequency indicates that the air motor and the Pulse unit are in good condition. If the pulse frequency is too high - add more oil. If the pulse frequency is too low - reduce the oil level.
