GSI Outdoors PNEG-377 FAN Service, Lubricant, Motors with Regreasing, Grease in motor bearings

Fan And Heater FAN SERVICE

Motors used in GSI fan units are all standard NEMA frame motors and are specially designed for use in crop drying applications. Most of the replace- ment parts for these motors are handled by authorized service stations of the various motor manufacturers.

1.Always disconnect and lock out power before working on or around fan motor and electrical components.

2.Malfunctioning electrical components should be checked by a qualified electrician.

3.For extra motor life, any electric motor should be run for 30 minutes, once a month. This will help eliminate any damaging mois- ture build-up in the motor and bearings.

4.If excess vibration shows up at some point when the fan has been running smoothly, check the blade for these conditions:

a.Fans setting idle in the summer offer an excellent place for mud dobbers to build their nests. A mud dobber nest on the back of the fan blade will cause the fan to be out of balance and vibrate.

b.	Also, mice have been	known to
nest in	the back	of a blade.

When the fan is

started the centrifugal force kills the mice, but throws the blade out of balance.

			Lubrication
This is a ball bearing motor.
	Hours of			Suggested Relube Interval
The bearings have been	Service Per Year
				NEMAFRAME SIZE
given initial lubrication at the				254 to 326T	42 to 215T	364 to 447T
factory. Motors without	5000 Hrs.			3 years	5 years	1 years
regreasing capability are fac-	Continuous Normal Application			1 years	2 years	9 months
tory lubricated for normal
	Seasonal Service Motor is idle			1 year	1 year	1 year
bearing life.
	for 6 months or more			(beginning of	(beginning of	(beginning of
Relubrication				season)	season)	season)
Intervals	Continuous high ambients, dirty			6 months	6 months	3 months
(Motors with Regreasing	or moist locations, high
Capability)	vibration or where shaft end is
New motors having been in stor-	hot (pumps-fans)
age for over a year should be
relubricated by the procedure noted in the chart to		254 thru NEMA 365 frame. Use 3 to 4 strokes on
ensure long operating life.		NEMA 404 frames and larger. On motors having
Lubricant		drain plugs, remove grease drain plug and oper-
		ate motor for 20 minutes before replacing drain
Baldor motors are pre-greased normally with		plug.
Shell Oil Company's "Dolium R". Several equiva-		On motors equipped with slotted head grease
lent greases which are compatible with the Baldor		Insscrew,rt 2removeto 3 inchscrewlengthandofapplygreasegreasestringtubeinto holeeach.
furnished grease are Chevron Oil's "SRI No. 2"		hole on motors in NMEA 215 frame and smaller.
and Texaco Inc.'s "Premium RB".		Insert 3 to 5 inch length on larger motors. Motors
Procedure		having grease drain plugs, remove plug and operate
		motor for 20 minutes before replacing drain plug.
Overgreasing bearings can cause premature bear-
		Keep grease clean. Lubricate motors at stand-
ing failure. If motor is equipped with Alemite
		still. Remove and replace drain plugs at stand-
fitting, clean tip of fitting and apply grease gun.
		still. Do not mix petroleum grease and silicone
Use 1 to 2 full strokes on motors in NEMA 215
		grease in motor bearings.
frame and smaller. Use 2 to 3 strokes on NEMA

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