Echo 74520 Owners Manual v.2 - Manual (Page 20)

Page 16 5" Chipper W/Hyd Feed Owners Manual
Operation
4.5 FEED SENSOR INSTRUCTIONS
4.5.1 FEED SENSOR OPERATION
4.5.2 RESETTING DAILY HOUR
METER
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.
A. INITIATING PROGRAM MODE
B. ENTER LOW (L=LOW) RPM
C. ENTER NORMAL (N=NORMAL) RPM
D. ENTER HIGH (H=HIGH) RPM
E. ENTER RETURN (RET=RETURN)
RPM
The feed sensor monitors the chipper rotor RPM to maximize
chipping efficiency. The low RPM setting is the rotor speed
when the feed roller stops. The feed sensor restarts the
feed roller when the chipper rotor RPM reaches the return
operating speed. This ability to automatically stop the feed
roller prevents the engine from overloading and stalling.
Engine Models: The feed sensor arrives programmed at the
factory to the following recommended settings.
low= 1650 RPM
normal= 2000 RPM
high= 0
return= 1675 RPM
poles= 1
PTO models: Set feed sensor to above recommended factory
settings. Refer to instructions below.
The feed sensor is energized when the chipper is started.
Logs begins to feed as the chipper rotor RPM reaches the
"return" setting. The feed sensor continues to monitor the
chipper rotor speed during use.
The feed sensor is equipped with an hour meter to track
hour usage. Stop the engine and make sure the chipper
blades and all moving parts are completely stopped before
resetting the hour meter.
1. Turn key switch to "ON" to energize the feed sensor.
2. Push the "S" button until Day flashes on the LCD display.
3. Depress the "S" button for five seconds and release.
4. Push and hold down the "S" button for an additional 13
seconds until daily hours are reset to zero.
The daily hours continue to accumulate until reset by the
operator.
1. Hold down the "S" button while turning the engine key to
the "on" position until "L" starts to flash on the LCD.
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.
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.
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.
2. Push the "S" button once with the desired RPM
setting displayed to save.
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.
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.
2. Push the "S" button once with the desired RPM
setting displayed to save.
F. ENTER NUMBER OF POLES (IPU =
NUMBER OF POLES)