Bearing Relubication Schedule; Vektor-Hs Nozzle Bearings; Damper Actuators - Greenheck Vektor-H Installation, Operation And Maintenance Manual
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Recommended Bearing Lubrication Schedule
Relubrication Schedule in Months*
Fan Size
9 - 13
Bearing Bore (inches)
Fan
RPM
1
⁄
- 1
2
to 250
12
500
12
750
12
1000
12
1250
12
1500
12
2000
12
2500
12
3000
12
3500
12
4000
12
5000
12
Number
of shots of
4
grease**
* Lubrication interval is based on 12 hour per day operation and
maximum 160°F. housing temperature. For 24 hour per day
operation, the interval should be cut in half.
** Lubricant should be added with the shaft rotating and until clean
grease is seen purging from the bearing. The lubrication interval
may be modified based on the condition of the purged grease.
If bearing is not visible to observe purged grease, lubricate with
number of shots indicated for bore size.
Vektor-HS Nozzle Bearings
The bearings for the HS nozzle assembly are
permanently lubricated and do not require additional
grease.
Damper Actuators
Damper actuators, when supplied by manufacturer,
are designed to be maintenance free. No lubrication is
required.
10
Laboratory Exhaust System
16 - 22
24
30 - 36
1
1
⁄
- 1
1
⁄
1
5
⁄
- 1
7
⁄
1
15
⁄
8
2
8
8
16
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
10
10
8
7
5
5
3
3
2
0.75
2
0.5
1
8
8
10
- 2
3
⁄
16
6
4
2
®
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