XCMG XE17U, Инструкция по эксплуатации

Страница: 130 / 208

09.2020 Seite 120 / 197
Risks when operating the hammer
Warning! – Installing a hydraulic knapper and its line without authorization from
XCMG dealer may cause serious malfunctions. This is beyond the
warranty coverage of the excavator.
– Selecting hydraulic knapper
o
If you want to install a hydraulic knapper, take the stability of
the equipment into account, and ensure that this modification
is appropriate. Also, proper pressure and flow should be
allowed for. Then, you can contact an agent to select an
appropriate hydraulic knapper.
– Hydraulic hoses and steel tubes of the knapper
o
When installing the hydraulic knapper, do the job according to
the drawings coming with the unit.
o
If you want to remove the knapper from the excavator, close
hoses and hard tubes with plugs and covers to prevent entry
of foreign materials into the hydraulic system.
o
Close the knapper joints with covers and plugs to prevent
entry of foreign materials.
o
Before start of operation, check all hydraulic joints for leakage
or looseness.
– Hydraulic knapper operations
Notice: Settings of hydraulic oil pressure and flow may require
modifications.
o
Be sure to read and comprehend the owner's manual of the
knapper.
o
Check all mechanical and hydraulic connections.
o
Do not use the knapper as a hammer. The knapper is
comparatively heavy and drops fast, so, do not drop the
knapper from a very high place; otherwise, its top structure
will be damaged. When operating the knapper, do not extend
the boom or arm cylinder completely. A 50 mm or larger
clearance should be maintained between the cylinder rod end
and the cylinder end so as to prevent the cylinder from
damage when you operate the knapper.
o
If the cylinder hoses vibrate excessively, do not use the
knapper. Check the hydraulic accumulator of the knapper for
damage; if needed, repair it. If the excavator works in such
conditions, its structure and hydraulic package may be
damaged.
o
If related equipment is unavailable, working underwater will
not be allowed. When the knapper body immerges into water,
the knapper seals will be damaged and become rusty so that
the external materials or water can enter the hydraulic system
to cause failure. Only head of the knapper can be inserted
into water.
o
Do not use the knapper to lift or haul any object.