Echo 74500 Owners Manual v.4 - Manual (Page 20)

5" and 8" Skid Steer Chipper Owner's Manual 18
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
Mounted bearings are pre-lubricated at our factory and are
ready for operation.
lubricaTion: lubrication of bearings is determined by
operating conditions and environment. lubricate standard
bearings with a litHiuM based grease.
greasing inTervals: Bearings in extreme environments
will require more frequent greasing intervals.
grease fill amounTs: it is preferred that experience
dictate fill amounts due to wide variances in applications,
greasing equipment and operating conditions. the
quantities shown in the pictures are recommended
amounts. in most cases, it is best to lube in small amounts,
under low pressure, until a thin bead of fresh grease is
visible at the seal lip area.
Care should be taken when greasing bearings to avoid
overfilling. Overfilling can lead to excessive heat and or
unsealing of the seals. grease should be introduced in
small increments and under light pressure. Whenever
possible, the bearing should be rotated slowly while grease
is being added to ensure equal distribution throughout the
raceways.
the chipper models described in this manual have several
bearings and pivots that require greasing. refer to figures
5.5 to 5.11 for greasing intervals and quantities.
5.8 greasing bearings and PivoTs
Polyuria and lithium based greases are not compatible.
Mixing the two grease types may lead to premature
failure.
the use of pneumatic grease equipment is not
recommended unless low pressure is assured.
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