Echo CH611DH Owners Manual v.5 - Manual (Page 25)

21 6 INCH CHIPPER
ENGLISH
SERVICE & MAINTENANCE
Before inspecting or servicing any part of this machine, shut off power source,
disengage the hydraulics, and make sure all moving parts have come to a complete stop.
WARNING
5.8 clearinG a pluGGeD roTor
FEED
ROLLER
JACK
LOCK PIN
STORAGE
POSITION
SUPPORT
BRACKET
LOCK PIN
POSITION
CHECK
VALVE
Feeding too large or too much material at once may plug
the chipper. To clear a plugged disk, proceed as follows:
1. lift the engagement handle and turn off engine key
switch. Allow all moving parts to come to a complete
stop.
2. Remove the two 3/8” retaining bolts holding the access
cover to the chipper frame and lift up access cover.
3. Remove the lock pin from storage position (see
below).
4. Turn check valve clockwise to engage the jack pump.
5. Pump the handle to raise the feed roller until the lock pin
position aligns with one of the support bracket holes.
6. Secure the position by putting the lock pin through the
support bracket and lock pin position.
7. Clean the debris away from the chipper disk. Turn the
disk by hand to be sure it is free to rotate. Be careful
to avoid the chipper blades when cleaning out the
debris.
8. Remove the lock pin and put it back in storage
position. lEAVINg THE lOCK PIN IN ANy OTHER
POSITION MAy INTERFERE WITH FEED ROllER
OPERATION.
9. Turn the check valve counterclockwise to disengage the pump and lower the jack.
10. Close access cover and replace bolts.
11. Start the engine. lower the engagement handle when engine is running to engage drive belt. Resume operation at
1/4 throttle.
5.9 FillinG hYDraulic FluiD
Hydraulic fluid drives the feed roller. Check the fluid
level daily and fill as needed. The fluid and filter should
be changed and system cleaned if the fluid becomes
contaminated with foreign matter (water, dirt, grease, etc.)
or if the fluid has been subjected to temperatures greater
than the maximum recommended.
The hydraulic pump requires premium hydraulic fluids
containing high quality rust, oxidation, and foam inhibitors.
These include premium turbine oils, API CD engine oils
per SAE J183, M2C33F or g automatic transmission
fluids meeting Allison C-3 or Caterpillar TO-2, and certain
specialty agricultural tractor fluids.
In the unlikely event that the oil is completely drained
from the hydraulic system, oil must be added and any air
bubbles must be purged from the system. To do this:
1. Clean all system components (reservoir, fittings,
etc.).
2. Fill the hydraulic reservoir.
3. Start the engine and run at the lowest possible RPM.
4. As you purge air from the unit, the oil level in the
reservoir will drop and bubbles may appear in the fluid.
Refill the reservoir as necessary.
5. Run the feed roller in both directions for several minutes
until any remaining air purges from the unit. Refill the
reservoir as necessary.
6. Shut down the engine, check for and correct any
fluid leaks, and check the reservoir level. Add fluid
if necessary. The hydraulic pump is now ready for
operation.