Newlong NP-7A - 7. LUBRICATOR; Lubricator Operation Guide; Lubricator Maintenance and Troubleshooting

7.LUBRICATOR
1.Operation
The lubricator comprises a pump and a reservoir. The
reservoirholdsmax45ccofoil.(Effectiveoilvolumeis28
cc.)
Usemineraloil22-32cStat40℃ (Eg.Tellusoil#32).
Tooperatethelubricator.
1.Firstunscrewthereservoircapbyhalfaturn.*
2.Pushthebuttontoitslowestposition(stroke:12mm)
3.Whenreleased,thebuttonwillautomaticallyreturntoits
originalposition.
4.Lastly, tighten the cap to prevent oil leak during
operation.


＊Repeated working on the button without first loosening
thecapmayproducenegativepressureinthereservoir,
andthedustintheatmospheremaybeeasilyintroduced
initwhenthecapisloosened.


3.Troubleshooting
2.Maintenance
1.Keepoffdustorforeignmatterwhentofilloil(Theymay
causejammingofthepistonandthecheckvalve).
2.Rateofdischargeisfixedandnotadjustable(0.08ccper
push).
3.Athightemperatures,greasemayrunalongpoints
○
A .
Thisisnormal,greasebeingusedwhenthelubricatorwas
assembledinourplant.
4.Reservoirismadeofhighdensitypolyethylene.Keepof
f

fire and refrain from using organic, benzene, or xylene
chemicalsforcleaning.
Check periodically for correct working of the pump.
(Repeatoilfeedandlookattheoilthroughthedischarge
pipe.)
Trouble Cause Remedy

Oilnotfed.

Fullstrokemovementnot
obtainable.

Buttonwillnotreturn.

Oilleakfrom
○
A

Oilleakfrom
○
B

Oilleakfrom
○
C


LowOillevel.

Dustattachedontheinterior
wallofthepumpingchamber.

Dustaccumulated,orbreakof
spring.
Wornoutordisplacedsealof
O-Ring.
Wornoutordisplacedsealof
packing.
Looseplug.

Filloil.

Replacelubricator.


Replacelubricator.

Replacelubricator.

Replacelubricator.

TightenplugorReplace
lubricator.

PUSH-BUTTONLUBRICATORModel:NP-7A
7