Echo 72620 - Manual (Page 20)

6 INCH CHIPPER 16
SERVICE & MAINTENANCE
BEFORE INSPECTING OR SERVICING ANY PART OF THIS MACHINE, SHUT OFF POWER SOURCE,
ANd MAKe suRe All MoVINg PARts hAVe CoMe to A CoMPlete stoP.
Warning
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:
Clean all system components (reservoir, fittings, 1.
etc.).
Fill the hydraulic reservoir.
2.
start the engine and run at the lowest possible RPM. 3.
As you purge air from the unit, the oil level in the 4.
reservoir will drop and bubbles may appear in the fluid.
Refill the reservoir as necessary.
Run the feed roller in both directions for several
5.
minutes until any remaining air purges from the unit.
Refill the reservoir as necessary.
Shut down the engine, check for and correct any
6.
fluid leaks, and check the reservoir level. Add fluid
if necessary. The hydraulic pump is now ready for
operation.
Change the hydraulic oil filter after the first 50 hours of
operation and every 200 hours thereafter (if applicable).
To change the hydraulic oil filter:
Using an oil filter wrench, turn the filter 1.
counterclockwise.
Once the filter becomes loose, turn it out the rest of
2.
the way with your hand.
Properly discard old filter.
3.
Lube the rubber seal on the new filter (PN 16588) with 4.
clean hydraulic oil.
Install the filter onto the threaded pipe. Turn with your
5.
hand until the filter is finger tight.
Using an oil filter wrench, tighten the filter another ½
6.
turn.
Check hydraulic oil level and fill if necessary.
7.
5.10 change hYdraulic filTer
Warning
Handle pressurized hydraulic fluid carefully. Escaping
pressurized hydraulic fluid may penetrate your skin
causing serious injury. This fluid may also be hot
enough to burn. Serious infection or reactions can
develop if immediate proper medical treatment is not
administered.
5.11 greaseable bearings
Lubricate the machine periodically with a lithium-based
grease. Extreme working conditions will require more
frequent greasing.
Grease the following points every 50-100 hours of
operating time:
imPorTanT
Polyurea and lithium-based greases are not compatible.
Mixing the two grease types may lead to premature
failure.
noTe
Do not over grease bearings. Overfilling can lead to
excessive heat and/or unseating of the seals. Add
grease slowly and under light pressure. Whenever
possible, rotate bearing slowly while lubricating.
• Two bearings on the rotor shaft.
• One bushing on the belt engagement pedal pivot.
• One grease zerk on idler pivot.
• One grease zerk on discharge chute.