Gardner Denver AirSmart ELECTRA-SAVER, Operating And Service Manual

Page: 24 / 80

13-21-608 Page 23
For additional information refer to the motor manufacturer
’s instructions. The following procedure should
be used in regreasing:
1.
Stop the unit.
2.
Disconnect lockout and tagout the unit from the power supply.
3.
Remove the relief plug and free hole of hardened grease.
4.
Wipe lubrication fitting clean and add grease with a hand-operated grease gun. Only enough grease
should be added to replace the grease used by the bearing. Too much grease can be as harmful as
insufficient grease. The grease cavity should be about 1/2 full.
5.
Leave the relief plug temporarily off. Reconnect the unit and run for about 20 minutes to expel the
excess grease.
6.
Stop the unit. Replace the relief plug.
7.
Restart the unit.
Rotating machinery can cause injury or death. Open main disconnect, lockout
and tagout power supply to starter before working on the electric motor.
ELECTRIC MOTOR GREASE RECOMMENDATIONS (-30
°
C to 50
°
C)
MANUFACTURER TRADE NAME
CHEVRON SRI #2
SHELL DOLIUM R
EXXON UNIREX #2
EXXON POLYREX
ELECTRIC MOTOR REGREASING INTERVAL
Type of
Service
Typical Rating Relubrication Interval
Standard One or Two Shift Operation
Up to 150 HP (112 kW) 18 Months
Above 150 HP (112 kW) 12 Months
Severe Continuous Operation
Up to 150 HP (112 kW) 9 Months
Above 150 HP (112 kW) 6 Months
Very Severe
Dirty Locations, High Ambient
Temperature
Up to 150 HP (112 kW) 4 Months
Above 150 HP (112 kW) 2 Months