บ٢ʰʕʍʒ
HYDRAULIC UNIT
98
d) ɒ˨ȥᥓከɁɀȫȾʁ˂ʵʐ˂ʡɥࢊȠǾɿɹ
ʁʱʽʃʒʶ˂ʔɥɝȤɞǿ
d) Apply sealing tape to the threaded section of the suction
pipe and reattach the suction strainer.
8) ʉʽɹюɥཌྷบȺຏોȬɞǿ 8) Clean the inside of the tank with kerosene.
7 า 7 CAUTION
ཌྷบɥΈႊȬɞȻȠɂǾٍ֚ȾཌȟȽȗȞᆬᝓȪǾԚґ
ɥȷȤȹȢȳȨȗǿ
Use caution when using kerosene, and make sure there
is no open flame in the vicinity.
9) ɂȤȽȼȺʓʶʽՠȾᅔȪȲɟɥɝȢǿ 9) Remove foreign matter from around the drain plug using a
brush.
10) ʉʽɹ˨ᬂɥɝȤɞǿ 10) Remount the tank upper plate.
11) บ٢ʰʕʍʒɥЫȼȝɝȾᜫᏚȬɞǿ 11) Remount the hydraulic unit on the machine.
12) ᥓከɥɝȤɞǿ 12) Connect the piping.
13) ፈบՠɷʭʍʡɥ۶Ȭǿ 13) Remove the fill port cap.
14) บᬂɥᆬᝓȪȽȟɜบɥᛃፈȬɞǿ 14) Supply oil while checking the oil level gage.
15) ൡಽໃɥоȬɞǿ 15)Turn ON the main power.
16) ʧʽʡɁ٢ӌȻоᬩɥᆬᝓȬɞǿ 16) Confirm pump pressure and suction noise are normal.
2 าᜤ 2 NOTE
оᬩȟ૰Ұɛɝ۾ȠȗȻȠɂบᦀɥѓᆬᝓȪȹȢȳȨȗǿ If the suction sound is louder than prior to oil replacement, check
the oil level again.
11-7 ʳɮʽʟɭʵʉɁʟɭʵʉɲʶʫʽʒɁ૰
Filter Element Replacement of Line Filter
2 าᜤ 2 NOTE
บ٢وᡅ˨ɁႱ࿎ɥՍȬɞȲɔȾʳɮʽʟɭʵʉɥɝȤȹȗɑ
Ȭǿ
The line filter is installed to remove foreign matter from the hydraulic
oil.
ʟɭʵʉȟᄻᝇɑɝɥᠭȦȬȻǾʟɭʵʉɲʶʫʽʒɁоɝՠȻҋՠ
Ɂࢃ٢ȺʚɮʛʃوᡅȟᩒȠǾͽӦบȟʟɭʵʉɲʶʫʽʒɥᣮᤈȺ
ȠɑȮɦǿͽӦบȾຉպȪȲ˪ጠ࿎ȟՍȺȠȽȢȽɝɑȬɁȺǾ˩
ᜤᬲȾȶȹʟɭʵʉɲʶʫʽʒɥ૰ȪȹȢȳȨȗǿ
If the filter is clogged, hydraulic oil cannot pass through the filter
element, as the by-pass opens due to the differential pressure between
the entrance and exit of the filter element. The foreign matter in the
hydraulic oil cannot be removed if this happens. Replace the filter
element by following the procedure given below.
ᴹ૰֚ఙᴻ <Replacement Interval>
1 ࢳȧȻ Once a year
u4
u8
Pipe Wrench
Suction Strainer
Suction Pipe
Monkey Wrench
ʛɮʡʶʽʋ
ɿɹʁʱʽʃʒʶ˂ʔ
ɒ˨ȥᥓከ
ʬʽɷ˂ʶʽʋ
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