LiuGong CLG835H, Service Manual

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8-6
Basic Information
January 24, 2017
Notes for welding CLG835H
5. Clamp the parts to be welded with the
grounding cable of the welder tightly. The
closer the grounding position with the weld-
ing, the better. Check from earthing cable to
circuit of welding assembly, to verify any of
the below components has not been passed
through:
●
Bearing
●
Hydraulic cylinder
●
Internal circuits of the controller or other elec-
trical units.
●
Doing in this way is to keep the following
parts away from the possible damage:
●
Bearing
●
Hydraulic parts
●
Electronic component
●
Other available components of the machine
6. Keep the inflammables away from the weld-
ing site while protect the cables, to safeguard
them against the loss and damage resulted
from the fire caused by splashing sparks and
welding slag.
7. Perform the weldment according to the nor-
mal welding safe performing procedure.
During welding, the earthing point of welder
on the frame shall be close to the welding
point to the greatest extent, for which a reli-
able large-area earthing shall be guaranteed.
Do not use the earth point of any electric
component on the machine as the earth point
of the welding machine!
For welding near the earth point of the elec-
tric appliance, you must not perform welding
operation until you disconnect the earth
point of the electric appliance and make sure
that the welding circuit of the welding
machine does not pass through the electric
appliance. Otherwise, it will damage the com-
ponents of the electric appliance, and even
lead to a fire!
To prevent possible losses, for the machine
equipped with electronic control compo-
nents, such as the control unit EST-117 of ZF,
control box, instrument, and engine ECM
etc., ensure that the welding circuit is discon-
nected from that of the aforementioned elec-
tronic control components before weldment,
while the connectors closest to such control
components shall be unplugged to cut the
circuit off.