Hyundai HYCH7070 User Manual page 17

5.5.6. While operating the machine keep a wooden stick handy, approximately
30mm diameter x 600mm long. This stick will be useful to push in short, brushy
and very leafy materials and keep the feed hopper clear.
5.5.7. DO NOT force material into the machine. If it does not chip well, the chipper
knives may need sharpening or replacement, or the gap between the knives
and the wear plate needs adjusting.
5.5.8. Make sure not to overload the machine by feeding too much material into
the feed hopper at one time. If you hear the speed of engine decreasing,
immediately stop feeding material into the machine. DO NOT resume feeding
material into the machine until the engine has returned to full speed.
5.5.9. The wood chipper can clog up with soft, wet or fibrous materials. However, if
you feed soft materials intermittently with branches, there should be no
problem, as the wood chipper tends to clean out any residue left in the
machine.
5.5.10. If any stringy material becomes wrapped around the rotor shaft. Turn off the
engine's power switch and wait until the cutting disk is completely stopped and
the belt drive is disengaged then remove the spark plug lead, then you can
remove it before it works its way into the bearing.
5.5.11. Should it happen that the wood chipper stalls through overloading or
clogging, turn off the engine's power switch and wait until the cutting disk is
completely stopped and the belt drive is disengaged. Allow the engine to be
completely cool and remove its spark plug. Open the housing cover to clear and
remove all the materials from the housing. Lock the housing cover, reinstall the
spark plug and start the machine again to resume the operation.
5.5.12. As the discharge materials piles up, move the chipper or the processed
material to keep the outlet free. Otherwise blocking will occur. DO NOT
position the deflector vertically, as it will reduce the airflow, impeding
discharge and cause a blockage.
Position the machine level and stable to avoid unnecessary vibrations.
DO NOT operate on concrete or bitumen.
DO NOT open the housing cover unless the engine and cutting disk
are completely stopped and the belt drive is disengaged.
The engine is fitted with oil alert and will not start if the oil level in the
sump is too low. It may also stop if it is operated on a steep slope.
To shut down the machine, simply move the throttle control lever at
idle speed, turn the engine switch to the OFF position, and it will
gradually come to a standstill.
5.6. Idle speed.
5.6.1. To reduce stress on the engine when compaction is not being performed set
throttle control lever to its "SLOW" position. Lowering the engine speed to idle the
engine will help extend the life of the engine, as well as conserve fuel and reduce
the noise level of the machine.
5.7. Stopping engine.
Page 17