WWW.BALTIMOREAIRCOIL.COM
21
21
Fan Shaft Bearings
Two pillow block ball bearings support the fan shaft. Each bearing is equipped with a
lubrication fitting and a slinger/locking collar to keep out moisture. Extended lubrication
lines are available as an option.
Inspection & Maintenance
• Only lubricate the bearings with a manual grease gun or BAC’s optional Automatic
Bearing Greaser. Do not use high-pressure grease guns since they may rupture the
bearing seals.
• Only lubricate the bearings with one of the following compatible water resistant
greases which are suitable for ambient temperatures ranging from - 65ºF (-53.9ºC) to
+250ºF (121.1ºC).
– Amoco - Rycon Premium #3
– Chevron - SRI
– Citgo - Polyurea MP2™
– Conoco - Polyurea 2™
– Exxon - Polyrex
®
EM
– Exxon - Unirex N™
– MobilGrease
®
- AW2
– Shell - Gadus S2 V100 3
– Shell - Gadus S3 T100 2
– SKF - LGHP2™
– Unocal 76 - Unilife Grease™
• Lubricate the bearings as follows:
– Initial Start-up: Normally, no lubrication is required since the bearings have been
lubricated at the factory prior to shipment. However, if the unit has been stored at
the job site for more than 1 year, all fan bearings should be lubricated with new
grease before initial operation. When lubricating, purge the old grease from the
bearing by gradually adding grease until a bead of new grease appears at the seal on
the underside of the bearing.
– Seasonal Start-up: Purge both bearings with new grease prior to start-up.
– Operation: Purge bearings with new grease every three months while in operation.
– Extended Shutdown: Purge bearings with new grease prior to any prolonged storage
or downtime.
NOTE: List of brand names is for
identification only and are not
exclusive recommendations.
Detailed Component
Maintenance
Procedures
Fan Shaft Bearings
Inspection & Maintenance
Heat Transfer Section
Fill & Drift Eliminator
Water Distribution System
To Next Page
Loading...
