Echo 72928 Owners Manual v.4 - Manual (Page 19)

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Step 1. Initiating Program Mode
1. Hold down the "S" button while turning the engine key to the "on" position until "L" starts to flash on the LCD.
Step 2. Enter Low (L=Low) RPM
The low setting is the RPM speed where the feed roller stops. The "up" arrow increases the RPM setting, while
the "down" arrow decreases the RPM setting. Setting the speed lower causes the engine to lug down more before
the feed roller stops.
1. Hold the appropriate (either up or down) arrow until the desired RPM speed is displayed. (Recommend 1375
rpm.)
2. Push the "S" button once with the desired RPM setting displayed to save.
NOTE: Do not choose a setting equal to or below zero.
Step 3. Enter Normal (N=Normal) RPM
The normal setting is the RPM speed the chipper rotor usually turns.
1. Hold the appropriate (either up or down) arrow until the desired RPM speed is displayed.(Recommend 1500
rpm.)
2. Push the "S" button once with the desired RPM setting displayed to save.
Step 4. Enter High (H=High) RPM
The high setting is not needed with this application.
1. Set to zero to deactivate.
2. Push the "S" button once with zero displayed to save.
Step 5. Enter Return (rEt=Return) RPM
The return setting is the RPM speed where the feed roller restarts. The feed roller should restart before the rotor
reaches "normal" RPM to maximize chipper efficiency. Setting the speed higher allows the engine to recover
more before the feed roller restarts.
1. Hold the appropriate (either up or down) arrow until the desired RPM speed is displayed.(Recommend 1400
rpm.)
2. Push the "S" button once with the desired RPM setting displayed to save.
Step 6. Enter Number of Poles (IPU=Number of Poles)
The number of poles is used to indicate the number of speed pickup devices.
1. Hold the appropriate (either up or down) arrow until one (1) is displayed.
2. Push the "S" button one with one (1) displayed to save.
Feed Sensor Programming Instructions
NOTE: When approaching the end of a log, it might be necessary to manually override the
automatic feed sensor. Be sure to pay attention to the engine speed and feeding of the material.