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6-8
NO
NO
NO
NO
YES
NO
YES
YES
YES
Is hydraulic oil
volume proper?
Is not air intruding
from pump
suction line?
Is not viscosity
of hydraulic oil
too high?
Is not suction
strainer clogged?
Replenish
specified oil to
the standard
level.
Replace oil with
one of proper
viscosity.
Clean suction
strainer.
Check for air
intrusion in
suction line and
retighten or
replace parts.
CAVITATION OCCURS WITH PUMP
3)
HYDRAULIC OIL IS CONTAMINATED
4)
Has not hydraulic
oil passed
specified replace-
ment hours?
Replace
hydraulic oil to be
specified.
Flush with
hydraulic oil and
replace return
filter.
Has return filter
been replaced at
proper intervals?
Cause
Remedy
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 ...