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LUBRICATION - POWER END
- Use only extreme
pressure GL-5 gear oil in the crankcase. The
crankcase oil capacity is 12 gallons (45.5 liters). Add
oil as required to keep oil level with top of pipe elbow
located on the side of the pump frame. Never use
motor oils in the crankcase as they do not provide
acceptable lubrication.
The selected API GL-5 oil must have antiwear,
antifoaming, noncorrosive and rust inhibiting
additives. A list of recommended grades vs.
temperatures is located at the back of this manual
and on the pump lubrication data plate. The list is
based on premium quality oils having viscosity values
that do not exceed 7,000 SSU at the minimum start-
up oil temperatures listed and viscosity values
between 1,500 SSU and 200 SSU for crankcase oil
temperatures listed. Oils with viscosity values
significantly different from these values, at the
temperatures listed, may be too thick at low
temperatures to flow into close bearing clearances, or
may be too thin at high temperatures to carry the
required loads. In either case pump damage could
occur.
If a 7,000 SSU maximum viscosity at start-up cannot
be assured, a crankcase heater is required. Also if
crankcase oil temperatures exceed 180
°
F (82
°
C),
an oil heat exchanger with a circulating pump is
required to prevent seal damage and oil break down.
For outdoor operation, the multiviscosity oils are
preferred to provide acceptable lubrication over wide
temperature ranges. However, when multiviscosity
oils are not available, straight weight oils should be
acceptable, if care is taken to stay within the listed
temperature ranges. Straight weight oils are also
ideal in pumps used indoors, when ambient
temperatures are controlled.
The oil level in the pump should be checked
frequently. Add oil through the breather opening. The
breather can be removed by rotating and lifting. Keep
the breather tightly in place while the pump is
operating to prevent moisture and dirt from entering
the crankcase. On pumps equipped with a
replaceable filter element type breather, clean the
element frequently and replace the element every six
months. When operating in very dusty or dirty
conditions, more frequent replacement may be
necessary.
If the pump has been stored or shut down for an
extended period, the crankcase should be drained
and filled with new oil before start-up.
The GD-250 Pump is NOT equipped with any type of
oil circulating pump. It is up to the customer to
provide an independently driven, auxiliary lubrication
pump. The auxiliary pump will provide filtered oil to
the oil manifold mounted on the crosshead inspection
plate.
The oil pump must have a minimum flow capacity of 8
gallons per minute.
The direction of rotation of the input shaft is indicated
by an arrow located on the frame.
WARNING
Use only extreme pressure API GL-5 gear
oil in the crankcase, which has the required
additives and viscosity. The use of motor
oils in the crankcase does not provide
acceptable lubrication and voids the
warranty.
WARNING
Do not operate the GD-250 pump below 50
RPM.
WARNING
A minimum inlet oil pressure of 50 PSIG
(3.45 bar) and oil viscosity of 200 SSU must
be maintained at all times. Failure to
observe this warning could result in severe
pump damage from lack of adequate
lubrication and voids the warranty.
