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| P92
Lubricator Pump |
| Operating
Instructions and Troubleshooting |
CECO's
P-92 Pumps are interchangeable and a direct replacement for the
lubricators used on Ingersoll-Rand® reciprocating compressors:
(Model DSL, SVH and SVK)
Box Suction
Pumps (Vacuum Feed)
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Fill
reservoir with oil.
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Loosen
union nut on pump outlet.
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Remove
the vent screw and fill the sight glass with oil.
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Replace
vent screw and prime by manually pumping flushing unit until
air free oil is observed from the drip tube and the pump outlet.
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Tighten
union nut.
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Maintain
oil level in sight glass below the drip tube so drops can be
observed.
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| On
downstroke all discharge valves close. Suction valve remains
open while oil is drawn through sight glass. |
Suction
Valve closes on upward stroke. Discharge valves open,
allowing discharge of oil through pump outlet. |
Flow Rate
(Stroke) Adjustment
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Loosen
locknut on flushing unit.
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Turn
flushing unit counterclockwise to increase flow.
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Turn
flushing unit clockwise to decrease flow.
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Tighten
locknut when desired flow rate is achieved.
Sight Glass
Operation / Maintenance
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In
a vacuum type sight feed, it is not uncommon for oil level in
the sight glass to drop during operation. Absence of a level
indicates air is being taken in with the oil and some oils,
due to viscosity conditions, will release air faster than others.
When the quantity of air becomes excessive, it can eventually
air lock the pump.
For
this reason it is recommended an oil level in the sight glass
be maintained.
When level drops, remove the vent screw and fill sight glass
to top; replace vent screw and operate flushing unit manually,
observing that oil in the sight glass is free from air. If
air is not expelled, it may be necessary to loosen union nut
(on pump outlet) and expel air at this point. It is desirable
to maintain level below the drip tube so drops can be seen
during operation.
Overfilling of Sight Glass
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In
a vacuum type sight feed, it is not uncommon to see a reverse
action where the sight glass fills with oil and the drops can
not be observed. Overfilling is caused by oil absorbing air
in the sight glass and normally does not affect he operation
of the pump. Remove the vent screw from sight glass and allow
level to drop below drip tube. Tighten vent screw and check
to see that air free oil from drip tube can be observed in the
sight glass. If overfilling continues, it may be caused by plunger
wear and oil slippage is being drawn back to sight glass. If
this is the problem, the feed setting in drops per stroke will
then automatically be reduced by the amount of slippage.
Reservoir
Oil Level ( Loss of Prime)
Cleaning
/ Air Lock / Disassembly
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Should
the pump stop operating, flush with a suitable cleaning solvent.
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If
the pump should become air locked, follow priming instructions
noted above.
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If
disassembly of the pump is required, refer to drawing number
30258C.
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If after flushing with solvent the pump will not operate, inspect
the Sight Glass and Seals looking for cracks, chips or worn
gaskets.
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For
complete overhaul a Repair Kit is available; request Part No.
24-3154A.
Pump Displacement
(Output)
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Maximum
output (per stroke)
(.012 Cubic Inches) Oil viscosity may vary size and number of
drops.
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Maximum
Operating Pressure: 3,500 PSI.
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The
cubic volume for a pint of oil is 28.9 cubic inches and the
average drop size is .002 cubic inches. There are approximately
14,500 drops in a pint; however oil viscosity may vary drop
size.
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