mori seiki NL1500/500, Maintenance Manual, Page: 193 / 245

193
บ٢ʰʕʍʒɁႱࢠ
HYDRAULIC UNIT ALARMS
8-2
ɬʳ˂ʪɂ᚜ᇉȨɟȽȗȟบ٢ʰʕʍʒɁӦͽȟႱࢠȽȻȠ
Alarm Not Triggered but Hydraulic Unit Operation Abnormal
No. Refer to
a
“Cleaning Suction Strainer and Tank” (page 96)
b “Checking Oil Level/Replenishing Oil” (page 94)
ᬱᄻ ࿡ม Ձى ՎᐎᬱᄻȝɛɆߦѿศ
1
٢ӌȟ˨஡Ȫ
Ƚȗ
ʉʽɹɁบᦀ˪ᠴ
“
บᦀɁཟ೫
/
บɁᛃፈ
”
ᴥ
94
ʤ˂ʂᴦǾ
“
บɁ̬૰
”
ᴥ
94
ʤ˂ʂᴦ
ɿɹʁʱʽʃʒʶ˂ʔɁᄻᝇɑɝ
“
ɿɹʁʱʽʃʒʶ˂ʔȻʉʽɹɁຏો
”
ᴥ
96
ʤ˂ʂᴦ
2
٢ӌȟ˪ާް
ᥓከюȾሳ෥ຉо ᬱᄻ
4
٢ӌ᜛ȟඩࢠȺȽȗ
ᬱᄻ
1
ࣷᇋɿ˂ʝʃ᥂ᩌȾȧᣵፅȢȳȨȗ
3
ႱᬩȟȬɞ
ͽӦบɁዯ࣊ȟ˪ᤛछ
“
บᑥ
”
ᴥ
59
ʤ˂ʂᴦ
ʉʽɹɁบᦀ˪ᠴ
“
บᦀɁཟ೫
/
บɁᛃፈ
”
ᴥ
94
ʤ˂ʂᴦǾ
“
บɁ̬૰
”
ᴥ
94
ʤ˂ʂᴦ
ɿɹʁʱʽʃʒʶ˂ʔɁᄻᝇɑɝ
“
ɿɹʁʱʽʃʒʶ˂ʔȻʉʽɹɁຏો
”
ᴥ
96
ʤ˂ʂᴦ
٢ӌȟ˪ާް ᬱᄻ
2
ʧʽʡ᥂ֿɁૺϾǾ଍ᐗ ࣷᇋɿ˂ʝʃ᥂ᩌȾȧᣵፅȢȳȨȗ
4
บȟ໫ɟɞ
ፕȡਖ਼Ȟɜบȟ໫ɟɞ ፕȡਖ਼Ɂۄ፻ɔɥȪȹȢȳȨȗ
ʥ˂ʃɁӐԇǾᆍૺ ࣷᇋɿ˂ʝʃ᥂ᩌȾȧᣵፅȢȳȨȗ
ʧʽʡȞɜ۶᥂Ⱦบȟ໫ɟɞ ࣷᇋɿ˂ʝʃ᥂ᩌȾȧᣵፅȢȳȨȗ
Item Status Cause Reference Items/Recovery Procedures
1
Pressure does
not rise
Low oil level in tank
“Replacing Oil” (page 94), “Checking Oil Level/
Replenishing Oil” (page 94)
Suction strainer clogging “Cleaning Suction Strainer and Tank” (page 96)
a
b
1.
2.
3.
Hydraulic pressure setting is 3.5 MPa
(NL1500/2000) or 4.0 MPa
(NL2500/3000)?
Hydraulic oil level sufficient?
Oil leakage visible?
Cleaning Suction Strainer
Replenishing Hydraulic Oil
Tighten connections.
If hose is damaged, contact the
Mori Seiki Service Department.
If oil is leaking from pump, contact
the Mori Seiki Service Department.
If alarm condition not released, contact the Mori Seiki Service Department for assistance.
No
Yes
No
Yes
Switch may be malfunctioning.
Contact the Mori Seiki Service Department
for assistance.
Yes
No
Recovery
Recovery
No Recovery