mori seiki NL1500/500 Maintenance Manual Download

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199

༁໙บʰʕʍʒɁႱࢠ

LUBRICATING UNIT ALARMS

ᝩ୥஁ศȾȷȗȹɂ

Refer to “Lubricating Unit Relief Valve Adjustment”
(page 199) for details on the relief valve adjustment
procedure.

9-5

༁໙บʰʕʍʒʴʴ˂ʟʚʵʠɁᝩ୥

Lubricating Unit Relief Valve Adjustment

ʴʴ˂ʟʚʵʠɁґᜓᴬ฼๎ɥᚐȶȲऻɂʴʴ˂ʟʚʵʠɥ
ᝩ୥ȪȹȢȳȨȗǿᝩ୥ɥᚐșҰȾᥓከюɁɲɬ੺Ƞɥᚐȶ
ȹȝȢ॒ᛵȟȕɝɑȬǿ

Following relief valve disassembly and cleaning, adjust the
relief valve using the following procedure. It is necessary to
bleed air from the piping prior to adjustment.

ᥓከюɁɲɬ੺ȠȾȷȗȹɂ

Refer to “Lubricating Unit Air Removal” (page 197) for details on
bleeding air from the piping.

ᴹਖ਼ᬲᴻ

<Procedure>

ʴʴ˂ʟʚʵʠɁᝩ୥ȟȺȠɞͱᏚɑȺʧʽʡɥધȴ˨ȥ
ȽȟɜǾ͏˩Ɂਖ਼ᬲȺʴʴ˂ʟʚʵʠɁᝩ୥ɥᚐșǿ

Lift the pump until positioned close enough to the oil level to
enable adjustment of the relief valve adjustment screw and
perform adjustment using the following procedure:

าᜤ

NOTE

ʴʴ˂ʟʚʵʠɁᝩ୥ɂǾɿɹʁʱʽʟɭʵʉȟ༁໙บȾ๝ȶȹ
ȗɞ࿡ৰȺᚐȶȹȢȳȨȗǿ

Adjust the relief valve while the suction filter is soaking in the
lubricant.

ਖ਼Ӧ଩ͽ႕ᬂ˨Ⱥ

‘

༁໙บվҋ

’

‘

ɴʽ

’

ȾȪȹǾ༁

໙บʧʽʡɥͽӦȨȮɞǿ

Set ‘FORCED LUBRICANT DISCHARGE’ to ‘ON’ on
the manual operation screen to start the lubricating
pump.

ᝊȪȗ଩ͽ஁ศȾȷȗȹɂҝёൡಽ଩ͽᝢ஥ం

“

ਖ਼Ӧ

଩ͽ႕ᬂ

”

For detailed operation instructions, refer to the separate
volume, OPERATION MANUAL “Manual Operation
Screen”.

ʴʴ˂ʟʚʵʠɁᝩ୥ɀȫȺǾվҋ٢ɥ

1.2 MPa

Ⱦᜫ

ްȬɞǿ

Set the pump discharge pressure to 1.2 MPa, using the
relief valve adjustment screw.

ۄ٢ᴷᝩ୥ɀȫɥծȾوȬǿ

Increasing pressure:
Turn the adjustment knob to the right.

ນ٢ᴷᝩ୥ɀȫɥࡿȾوȬǿ

Reducing pressure:
Turn the adjustment knob to the left.

าᜤ

NOTE

1.2 MPa

Ⱦᝩ୥ȺȠȽȗکնɂʧʽʡɁ୒᪩ȟᐎțɜɟɑȬ

ɁȺǾࣷᇋɿ˂ʝʃ᥂ᩌȾȧᣵፅȢȳȨȗǿ

If unable to set the pressure to 1.2 MPa, the pump is
malfunctioning. Contact the Mori Seiki Service Department for
assistance.

ᝩ୥ऻǾʷʍɹʔʍʒȺِްȬɞǿ

Tighten the lock nut after adjustment.

ʴ˂ʟʚʵʠᝩ୥ऻǾڋɔಃɥ۶ȪȹᥓከጽᡅȾ૚ፖȬ
ɞǿ

After adjusting the relief valve, remove the cap and
reconnect the pump discharge piping.

ᥓከጽᡅɁɲɬ੺ȠɥԚґȾᚐȗǾվҋ٢ȟ

1.0 MPa

͏˨

ȺȕɞȦȻɥᆬᝓȬɞǿ

Ensure air removal is performed sufficiently and the
discharge pressure exceeds 1.0 MPa.

ʧʽʡԨͶɁȻȠȻ෗Ɍȹ٢ӌȟ۾ȠȢႱȽɞکնɂǾ͏
˩ɁཟɥᆬᝓȬɞǿ

Confirm the following points if the pressure level set in the
above procedure differs remarkably from the pressure of
the pump with the line filter discharge outlet disconnected
to the piping route.

•

ᥓከȾบ໫ɟɂȽȗȞ

Lubricant leakage is not occurring.

บ໫ɟɁཟ೫Ⱦȷȗȹɂ

For details on oil leakage inspection procedures, refer to
“Lubricating Unit Lubricant Leakage Check” (page 199).

•