Wheel and shaft maintenance, Structural maintenance – MK Plastics KVC IO&M User Manual
Page 5
M.K.Plastics Corp. Montréal, Québec www.mkplastics.com
5
500
1000
1500
2000
2500
3000
3500
4000
4500
1825
1.437
Roller
12
8
8
4
2
2
2
2
1
2225
1.437
Roller
12
8
8
4
2
2
2
2
1
2450
1.937
Roller
8
4
3
2
1
1
1
1
1
2700
2.187
Roller
8
4
3
2
1
1
1
1
1
3000
2.437
Roller
6
3
2
1
1
0.5
0.5
0
0
3300
2.437
Roller
6
3
2
1
1
0.5
0.5
0
0
3650
2.937
Roller
6
3
2
1
1
0.5
0.5
0
0
4025
3.437
Roller
6
3
2
1
1
0.5
0.5
0
0
4450
3.437
Roller
6
3
2
1
1
0.5
0.5
0
0
4900
3.437
Roller
6
3
2
1
1
0.5
0.5
0
0
5425
3.937
Roller
5
2
1
0.5
0
0
0
0
0
Fan Size
Shaft Dia.
Type
Speed [RPM]
Relubrication Schedule (Weeks)*
Axijet-VC & KVC (Class 3)
Table-2C. Relubricating Schedule (Weeks) – Axijet-VC & KVC (Class 3)
Wheel and Shaft Maintenance
Periodically inspect the shaft and wheel for dirt build up, corrosion, and signs of excess stress or fatigue.
Clean the components. If the wheel is removed for any reason, make sure that it is securely attached to
the shaft before restarting the fan.
Structural Maintenance
All structural components or devices used to support or attach the fan to a structure should be checked at
regular intervals. Vibration isolators, bolts, foundations, etc., are all subject to failure from corrosion,
erosion, and other causes. Improper mounting can lead to poor operation characteristics or fan fatigue
and failure. Check metallic components for corrosion, cracks, or other signs of stress. Concrete should be
checked to insure the structural integrity of the foundation.
*Suggested lubrication interval under ideal continuous operating conditions. Relubricate while running,
if safety permits, until some purging occurs at seals. Adjust lubrication frequency depending on
conditions of purged grease. Hours of operation, temperature, and surrounding conditions will affect the
relubrication frequency required.
1. Lubricate with a high quality NLGI No. 2 lithium-base grease having rust inhibitors and
antioxidant additives, and a minimum oil viscosity of 500 SUS at 100°F (38°C). Some greases
having these properties are:
a. Shell - Alvania RL
b. Exxon - Ronex MP
c.
Mobil - Mobilith SHC100
d. Mobil - Mobilith SHC220
2. Lubricate bearings prior to extended shutdown or storage and rotate shaft monthly to aid
corrosion protection.