Flowserve SLD - Manual (Page 6)

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2.3 If it is desired to decrease or increase the rate of lubricant dispensing after
initial setting, simply click all the DIP switches to “Off” and reselect the new
dispensing period desired.
2.4 To turn off the SLD auto-luber unit during periods of extended equipment
shutdown (months), click all the DIP switches, including the “Blip” light,
to “Off”. Reactivate settings prior to placing equipment back into normal
operation. See paragraph 4 Maintenance for blip light indicators.
3 Dispensing Variations
Variables can be considered when selecting the dispensing rate based on the
operating environment. The SLD auto-luber dispensing rates are based on seal
quench chamber parameters found at normal sea level atmospheric conditions
of 101 kPa and 20°C (14.7 psia and 68°F) and for equipment shaft diameters of
100 mm (4 inch). In general, it is a good practice to first select a faster dispensing
rate than anticipated and make adjustments based on actual field observations.
Because of the wide number of variables found with each application, the
following information is being provided only as a guide for making an informed
decision when selecting the appropriate dispensing rate. There is an additive
effect of variables that can cancel or compound with each other. This may help
explain why grease consumption varies between installations, seasons, or from
published rates.
3.1 Altitude Effect
The rate of dispensing will increase at higher altitudes and decrease at lower
altitudes because of the difference in atmospheric pressure acting against
the SLD auto-luber unit. For every change in elevation of 305 meters (1000
feet) from sea level, the discharge rate will naturally increase or decrease
by an additional 5%. For example, at 610 meters (2000 feet) above sea
level, the dispensing rate will be 10% faster. Similarly, at 305 meters (1000
feet) below seal level, the dispensing rate will be 5% slower. Installation
at high altitude may require selection of a slower dispensing rate to help
compensate.
3.2 Temperature Effect
The rate of dispensing will increase at higher temperatures and decrease
at lower temperatures because of the change in lubricant viscosity.
For every change in temperature of 5.5°C (10°F) above or below ambient,
the discharge rate will naturally increase or decrease by an additional 4%.
Time Delay to Dispense Figure 3
Time Delay to Dispense
Month Switch 1 mo. 2 mo. 3 mo. 6 mo. 12 mo. B
Days Delay 1 2 3 5 10 20
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