Trane Performance Air Handlers Instrukcja Instalacji Pobierz pdf (Strona 89)

CAH-SVX01B-EN 89

Routine Maintenance

Fan Bearing Lubrication

NOTICE

Bearing Failure!

Do not mix greases with different bases within the bearing. Mixing grease within the bearing

may result in premature bearing failure.

The grease used in electric motor bearings is usually not compatible with the grease used in fan

bearings. Never mix the two grease types! See Table 8 for compatible greases and Table 9 for

maximum grease capacity.

Note: Lubricate the bearing according to the motor manufacturer’s recommendations and use the

manufacturer-recommended grease.

• Fan bearings without lubrication lines are sealed bearings. Re-lubrication is not required.

• Fan bearings equipped with lubrication lines should be lubricated with a lithium-based grease

that conforms to NLGI No. 2 for consistency.

Refer to Tabl e 10 for minimum torque of motor mounting and bearings bolts.

Table 8. Compatible Greases Table 9. Fan bearing maximum grease capacity

Type Shaft size (inches) Capacity (fluid ounce)

Texaco Multi Fak 2 1/2 - 3/4 1/7

Shell Alvania 2 7/8 - 1 3/16 3/8

Mobil 532 1 1/4 - 1 1/2 5/8

Chevron Dura-Lith 2 1 11/16 - 1 15/16 7/8

Exxon Beacon 2 - 2 7/16 1 1/4

Keystone 84H 2 1/2 - 2 15/16 2

Figure 78. Bearing set screw alignment

Bearing Set Screw Alignment

Align bearing set screws as illustrated in Figure 78.

Tab le 10 provides bearing set screw torque

measurements.

Align set screws

1 2 ... 84 85 86 87 88 89 90 91 92 93 94 ... 99 100

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Trane Performance Air Handlers Instrukcja Instalacji Strona 89