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6-22
YES
NO
Is boom foot pin
greased
sufficiently?
BOOM MAKES A SQUEAKING NOISE WHEN BOOM IS OPERATED
6)
Boom foot pin
has run out of
grease.
Frictional noise
occurs between
the sliding faces
of boom
cylinder's oil
seal and boom
proper.
Supply grease
to it.
※
Frictional
noise will
disappear if
they are kept
used.
※
If seizure is
in an initial
stage, supply
sufficient
grease.
If seizure is
in a grown
state, correct
it by paper
lapping or
with an oil
stone.
Cause
Remedy
Summary of Contents for HX130 LCR
Page 11: ...1 1 SECTION 1 GENERAL Group 1 Safety Hints 1 1 Group 2 Specifications 1 10 ...
Page 174: ...4 5 MEMORANDUM HYUNDAI HEAVY INDUSTRIES CO LTD CONSTRUCTION EQUIPMENT DIV ...
Page 536: ...8 108 125LCR8TM30 Turn casing 1 upside down and remove oil seal 3 using jig 29 ...
Page 566: ...8 138 Remove lock nut 22 and then boot 23 14 36078RL14 2507ARL10 ...