Lubrication
MOTORS — Lubricate in accordance with nameplate at-
tached to motor or with manufacturer’s recommendations in-
cluded with motor.
BEARINGS
Fan Bearings — Lubricate fan bearings every 3 months with
suitable bearing grease. Typical lubricants are given in
Table 26.
Porous Bronze Bearings — These bearings are oil impreg-
nated. Annually lubricate with a few drops of nondetergent
SAE 20 oil.
Table 26 — Lubricant Data
MANUFACTURER LUBRICANT
Sunoco Prestige 42
Texaco Multifak 2
Texaco Regal AFB-2*
Mobil Mobilplex EP No. 2
*Preferred lubricant because it contains rust and
oxidation inhibitors.
Motor and Drive Package Data — Tables 27-29 give
motor data for forward-curved, airfoil, and plenum fans.
LEGEND
THF — Top Horizontal Front
THR — Top Horizontal Rear
UBF — Upblast Front
UBR — Upblast Rear
Fig. 79 — Discharge Panel Rotation
97
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