JOHNSON CONTROLS
62
FORM 102.20-OM2
ISSUE DATE: 6/01/2015
SECTION 3 - MAINTENANCE
TABLE 12 - FAN BEARING RE-LUBRICATION INTERVALS FOR BALL BEARING PILLOW BLOCKS
RE-LUBRICATION SCHEDULE (MONTHS - ASSUME 24/7 OPERATION)
SPEED (RPM) 500 1000 1500 2000 2500 3000 3500 4000 4500
SHAFT DIAMETER (IN)
1/2 to 1-11/16 6 6 5 3 3 2 2 2 1
1-15/16 to 2-7/16 6 5 4 2 2 1 1 1 1
2-11/16 to 2-15/16 5 4 3 2 1 1 1
3-7/16 to 3-15/16 4 3 2 1 1 1
TABLE 13 - FAN BEARING LUBRICATION INTERVALS FOR SPHERICAL ROLLER BEARING SOLID PILLOW
BLOCKS
RE-LUBRICATION SCHEDULE (MONTHS - ASSUME 24/7 OPERATION)
SPEED (RPM) 500 1000 1500 2000 2500 3000 3500 4000 4500
SHAFT DIAMETER (IN)
1/2 to 1-11/16 6 4 4 2 1 1 1 1 ½
1-15/16 to 2-7/16 4 2 1½ 1 ½ ½ ½ ½ ½
2-11/16 to 2-15/16 3 1½ 1 ½ ½ ½ ½
3-7/16 to 3-15/16 4 3 2 1 1 1
TABLE 14 - FAN BEARING LUBRICATION INTERVALS FOR SPHERICAL ROLLER BEARING SPLIT PILLOW
BLOCKS
RE-LUBRICATION SCHEDULE (MONTHS
- ASSUME 24/7 OPERATION
)
SPEED (RPM) 500 750 1000 15000 2000 2500 3000 3500 4000
SHAFT DIAMETER (IN)
1/2 to 1-11/16 6 4½ 4 4 3½ 2½ 2½ 1 1
1-15/16 to 2-7/16 4½ 4 3½ 2½ 1½ 1 ½
2-11/16 to 2-15/16 4 4 2½ 1 ½
3-7/16 to 3-15/16 4 2½ 1½ 1
TABLE 15 - FAN BEARING LUBRICATION INTERVALS FOR DODGE ISN BEARINGS
SHAFT SIZE
(INCHES)
RPM
250 500 750 1000 1250 1500 2000 2500 >3000
1-1/8 to 2 4 3 2 2 1 0.5 0.25 0.25 0.25
2-3/16 to 2-1/4 3.5 2.5 1.5 1 0.5 0.5 0.25 0.25 0.25
2-3/8 to 3 3 2 1.5 1 0.5 0.25 0.25 0.25 0.25
3-3/16 to 3-1/2 2.5 1.5 1 0.5 0.25 0.25 0.25 0.25
3-11/16 to 4-1/2 2 1.5 1 0.5 0.25 0.25 0.25
4-15/16 to 5-1/2 1.5 1 0.5 0.25 0.25 0.25
5-15/16 to 6 1 0.5 0.5 0.25 0.25 0.25
6-7/16 to 7 1 0.5 0.25 0.25 0.25
LUBRICATING THE FAN SEGMENT AND
MOTOR
Keep the motor clean, dry, and properly lubricated at
all times. On ODP (Open Drip Proof) type motors as
shown in Figure 59 on page 63, blow dust and dirt
out of the windings periodically, using low pressure air
(50 psig). For Totally Enclosed Fan Cooled (TEFC)
motors as shown in Figure 60 on page 63, blow dust
and dirt out of the cooling fan as conditions indicate.
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