Echo 74624S Owners Manual v.2 - Manual (Page 19)

17
OPERATION
4.6 hYdraulic feed conTrol
the bear Cat chipper is equipped with a pre-programmed
hydraulic feed control located under the control panel. the
controller monitors chipper rotor RPM, controls the feed
roller, and provides routine maintenance alerts.
the controller can be turned off with the switch located below
the control panel. If the controller becomes damaged, the
chipper will still run with the controller shut off, however all
of the controller functions will be disabled. the feed roller
will have to be controlled with the control arm.
The feed conTrol funcTionS are furTher
deTailed beloW:
the controller monitors the RPM of the chipper rotor. If
the RPM drops below the preset range, the feed roller
is stopped. When the RPM are back up to an accept-
able level, the feed roller is reengaged.
the controller also has a “try again” feature. the
controller monitors the hydraulic pressure of the feed
roller. If it senses the level is too high (the feed roller
becomes obstructed) the controller will reverse the feed
roller , removing the material trying to be chipped. the
controller will then engage the roller into the forward
position and try to feed the material again. If this cycle
continues, the obstruction will have to be removed
manually, trimmed, and/or repositioned.
to disable the try again feature, disconnect the 2-pin
connector going to the pressure switch. It is located
above the feed roller motor on the Sa-1987 assembly.
the controller will also flash service alerts when it is
started. every 15 hours it will flash 5 times to indicate
the chipper blades should be sharpened. every 100
hours it will flash 10 times to indicate the engine oil
should be changed.
noTe: The RPM sensor on the rotor must be flashing or
the controller won’t work. Clearance between the sensor
and the bolt must be between 1/32” and 3/32”.
1.
2.
3.
4.
there is an orange safety bar located around the extension
tray that will stop the chipper when pushed in. When the
safety bar has been activated, a red light signals the reset
button should be pushed before the feed roller will function.
When you are ready to resume chipping, push the reset
button that is on top of the chipper chute.
If false trips occur from a limb, the reset button can be held
in to override the system. upon start up, safety bar light
will be on and will require the reset button to be pushed in
before the feed roller will operate.
to lock the safety bar into travel position, place the exten-
sion tray in an upright position. Pushing the safety bar down
will lock the safety bar. to unlock, lower the extension tray
and push in on the safety bar. This will release the flange
and allow the safety bar to move freely.
Flange lock
Safety bar and reset button
4.7 SafeTY bar oPeraTion