Designing a system20
Date of issue: October 2011
Automatic Greasing System OnePlus
EG1605R01
3Designing a system
3.1 Introduction
The following aspects influence the design of a OnePlus greasing system:
1. The number of grease points to be connected and:
• The position of the grease points on the vehicle or machine.
• The grease demand of the grease points.
• The greasing interval required by the grease points.
2. The space available on the vehicle or machine for the pump unit and the dis-
tribution blocks.
3. The NLGI class of the grease to be used and the lowest ambient temperature
under which the greasing system is expected to function.
3.2 Points of departure
Pump
Maximum working pressure 275 bar
Distribution blocks
Maximum number of distribution blocks in series 2
Available segment types table 1
Minimum number of doser segments in a distribution block 3
Maximum number of doser segments in a distribution block 12
Pressure drops in a distribution block, related to: table 2
• The number of segments in the distribution block
• The NLGI class of the grease used
• The ambient operating temperatures
Primary and secondary grease lines
Pressure drops in the grease lines, connected with: table 3
• The diameter of the lines
• The length of the lines
• The NLGI class of the grease used
• The ambient operating temperatures
Resistance at the grease point
Ball or roller bearing 5 bar
Slide bearing 15 bar
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