Greenheck Fan Part #470655 Electric Heater User Manual


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DGX Industrial Space Heating
Bearings
The bearings for manufacturer fans are carefully
selected to match the maximum load and operating
conditions of the specific class, arrangement and fan
size. The instructions provided in this manual and those
provided by the bearing manufacturer will minimize any
bearing problems.
IMPORTANT
Lubricate bearings prior to periods of extended
shutdowns or storage and rotate shaft monthly to aid
in corrosion prevention. If the fan is stored more than
three months, purge the bearings with new grease
prior to start-up.
Recommended Bearing Lubrication Schedule (in Months*)
Fan
RPM
Bearing Bore Size (inches)
1
⁄2 - 1 1
1
⁄8 - 1
1
⁄2
1
5
⁄8 - 1
7
⁄8
1
15
⁄16 - 2
3
⁄16
2
7
⁄16 - 3
250 6 6 6 6 6
500 6 6 6 5
4
750 6 5 4 3 3
1000 5 3 2 1 1
1250 5 3 2 1 1
1500 5 2 1 1 0.5
2000 5 1 1 0.5 0.25
*Suggested initial greasing interval is based on 12 hours per
day operation and 150°F maximum housing temperature.
For continuous (24 hour) operation, decrease greasing
interval by 50%
•Ifextendedgreaselinesarepresent,relubricatewhilein
operation, only without endangering personnel.
•Forballbearings(operating)relubricateuntilcleangreaseis
seen purging at the seals. Be sure not to unseat the seal by
over lubricating.
•Forballbearings(idle)add1-2shotsofgreaseupto2inch
bore size, and 4-5 shots above 2 inch bore sizes with a
hand grease gun.
•Forrollerbearingsadd4shotsofgreaseupto2inchbore
size, and 8 shots for 2-5 inch bore size with a hand grease
gun.
•Adjustrelubricationfrequencybasedonconditionofpurged
grease.
•AhighqualitylithiumbasedgreaseconformingtoNLGI
Grade 2 consistency, such as those listed here:
Mobil 532
Mobilux #2
Texaco Multifak #2
Texaco Premium #2
B Shell Alavania #2
Exxon Unirex #2
Filters
Filter maintenance is generally limited to cleaning and
replacement.
If aluminum mesh filters are installed, they can be
washed in warm soapy water.
An adhesive spray can be added to aluminum mesh
filters to increase their efficiency.
If disposable filters are installed, they can be checked
by holding up to a light source. If light cannot pass
through the filter, it should be replaced.
IMPORTANT
When reinstalling filters, be sure to install them with
the airflow in the correct direction. An airflow direction
arrow is located on the side of the filters.
IMPORTANT
Replacement filters should be from the same
manufacturer and the same size as the original filters
provided with the unit.
®
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