บ٢ʰʕʍʒ
HYDRAULIC UNIT
98
d)
ɒ˨ȥᥓከɁɀȫȾʁ˂ʵʐ˂ʡɥࢊȠǾɿɹ
ʁʱʽʃʒʶ˂ʔɥɝ͇Ȥɞǿ
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)
ɂȤȽȼȺʓʶʽՠȾ͇ᅔȪȲɟɥɝȢǿ
9)
Remove foreign matter from around the drain plug using a
brush.
10)
ʉʽɹ˨ᬂɥɝ͇Ȥɞǿ
10)
Remount the tank upper plate.
11)
บ٢ʰʕʍʒɥЫȼȝɝȾᜫᏚȬɞǿ
11)
Remount the hydraulic unit on the machine.
12)
ᥓከɥɝ͇Ȥɞǿ
12)
Connect the piping.
13)
ፈบՠɷʭʍʡɥ۶Ȭǿ
13)
Remove the fill port cap.
14)
บᬂɥᆬᝓȪȽȟɜบɥᛃፈȬɞǿ
14)
Supply oil while checking the oil level gage.
15)
ൡಽໃɥੵоȬɞǿ
15)
Turn ON the main power.
16)
ʧʽʡɁ٢ӌȻоᬩɥᆬᝓȬɞǿ
16)
Confirm pump pressure and suction noise are normal.
2
าᜤ
2
NOTE
оᬩȟ̬૰Ұɛɝ۾ȠȗȻȠɂบᦀɥѓᆬᝓȪȹȢȳȨȗǿ
If the suction sound is louder than prior to oil replacement, check
the oil level again.
11-7
ʳɮʽʟɭʵʉɁʟɭʵʉɲʶʫʽʒɁ̬૰
Filter Element Replacement of Line Filter
2
าᜤ
2
NOTE
บ٢وᡅ˨ɁႱ࿎ɥՍȬɞȲɔȾʳɮʽʟɭʵʉɥɝ͇Ȥȹȗɑ
Ȭǿ
The line filter is installed to remove foreign matter from the hydraulic
oil.
ʟɭʵʉȟᄻᝇɑɝɥᠭȦȬȻǾʟɭʵʉɲʶʫʽʒɁоɝՠȻҋՠ
Ɂࢃ٢ȺʚɮʛʃوᡅȟᩒȠǾͽӦบȟʟɭʵʉɲʶʫʽʒɥᣮᤈȺ
ȠɑȮɦǿͽӦบȾຉպȪȲ˪ጠ࿎ȟՍȺȠȽȢȽɝɑȬɁȺǾ˩
ᜤਖ਼ᬲȾिȶȹʟɭʵʉɲʶʫʽʒɥ̬૰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.
ᴹ̬૰֚ఙᴻ
<Replacement Interval>
1
ࢳȧȻ
Once a year
u
4
u
8
Pipe Wrench
Suction Strainer
Suction Pipe
Monkey Wrench
ʛɮʡʶʽʋ
ɿɹʁʱʽʃʒʶ˂ʔ
ɒ˨ȥᥓከ
ʬʽɷ˂ʶʽʋ
Summary of Contents for NL1500/500
Page 8: ......
Page 9: ...CONTENTS FOR SAFE MACHINE OPERATION REGULAR MAINTENANCE TROUBLESHOOTING INDEX...
Page 10: ......
Page 19: ...FOR SAFE MACHINE OPERATION...
Page 50: ......
Page 51: ...1 1 CHAPTER 1 CHAPTER 1 REGULAR MAINTENANCE...
Page 167: ...2 2 CHAPTER 2 CHAPTER 2 TROUBLESHOOTING...
Page 181: ...181 ZERO POINT RETURN COMMAND ALARM TRIGGERED X X Axis Z Z Axis Y Y Axis...
Page 232: ......
Page 240: ......
Page 242: ......