EVAPCO LPT 8812 User Manual

10
Fan Shaft Sleeve Bearings – (1,2 m wide LSTE units only)
Lubricate the intermediate sleeve bearing(s) before unit start up. The reservoir should be checked
severaltimesduringtherstweektoensurethattheoilreserveisbroughttofullcapacity.After
therstweekofoperation,lubricatethebearing(s)every1.000hoursofoperationorevery
threemonths(whicheveroccursrst).Hightemperaturesorpoorenvironmentalconditionsmay
necessitate more frequent lubrication. The oil reservoir consists of a large felt packed cavity within
thebearinghousing.Itisnotnecessarytomaintaintheoillevelwithinthellercup.
Use one of the following industrial grade, non-detergent mineral oils. Do not use a detergent
based oil or those designated heavy duty or compounded. Different oils may be required
when operating at temperatures below -1°C continuously. Table 2 provides a short list of approved
lubricants for each temperature range. Most automotive oils are detergent based and may not be
used. Detergent oils will remove the graphite in the bearing sleeve and cause bearing failure.
Ambient Temp. Texaco Mobil Exxon Total
-32°C to 0°C - DTE Heavy - -
-17°C to 43°C - - - -
0 to 38°C Regal R&O 220 DTE Oil BB Teresstic 220 -
Table 2 - Sleeve Bearing Lubricants
Oil drippage may result from over-oiling or from using too light an oil. Should this condition persist
with correct oiling, it is recommended that the next heavier weight oil be used.
All bearings used on EVAPCO equipment are factory adjusted and self aligning. Do not disturb
bearing alignment by tightening the sleeve bearing caps.
Fan Belt Adjustment
Thefanbelttensionshouldbecheckedatstartupandagainaftertherst24hoursofoperation
to correct for any initial stretch. To properly adjust the belt tension, position the fan motor so that
thefanbeltwilldeectapproximately13mmwhenmoderatepressureisappliedmidwaybetween
the sheaves.
Figure1andFigure2showtwowaystomeasurethisdeection.Belttensionshouldbecheckedon
a monthly basis. A properly tensioned belt will not “chirp” or “squeal” when the fan motor is started.
Figure 1 – Method 1 Figure 2 – Method 2
BELT
DRIVER
SHEAVE
DRIVEN
SHEAVE
STRAIGHT EDGE
13 mm DEFLECTION =
PROPER BELT TENSION
BELT
DRIVER
SHEAVE
DRIVEN
SHEAVE
TAPE MEASURE
13 mm DEFLECTION =
PROPER BELT TENSION

EVAPCO LPT 8812 Specifications

General

Brand	EVAPCO
Model	LPT 8812
Category	Accessories
Language	English