Automatic Greasing System OnePlus
Installation
29
Date of issue: October 2011
EG1605R01
4.6 Primary grease lines and couplings
4.6.1 Grease line types
The primary grease lines are those between the pump unit and the main distribu-
tion block and between the main distribution block and the secondary distribution
blocks. The primary grease lines are available in a number of different sizes and ma-
terials.
• Flexible high-pressure line DN4 (inside diameter 4,0 mm - outside diameter
9,7 mm).
• Flexible high-pressure line DN6 with steel-wire armour (inside diameter 6,0
mm - outside diameter 12,0 mm).
• Metal lines with sizes ø6 x 1 mm or ø8 x 1 mm.
The type of primary grease line most commonly used in the transport industry is the
flexible high-pressure line DN4. This high-quality line combines compactness with
high strength and flexibility.
4.6.2 Mounting the primary grease lines
1. Determine the required length of the grease line to be installed, and cut it to
that length.
2. Mount the couplings onto the line (with high-pressure lines).
Removable couplings:
a. Clamp the sleeve in a bench vice.
b. Turn the line into the sleeve, to end of the sleeve (counter-clockwise!).
c. Turn the line backward 1/4 to 1/2 turn.
d. Apply oil or grease to the pillar, the sleeve and the inside of the line.
e. Turn (clockwise) the grease line pillar in the sleeve, untill it is in position
without tension.
f. Mount the coupling at the other end of the grease line in a similar way.
Press couplings (applied with a simple hand-operated press) for
high-pressure line DN4 (05716):
a. Slide the press sleeve completely over the end of the grease line, so that
the line fills the sleeve completely.
b. Slide, use some oil if necessary, the pillar or the required coupling pin into
the end of the grease line untill the pillar is completely in the grease line.
c. Place the assembly in the press in such a manner that a little piece of the
sleeve remains visible at both sides. Apply pressure until the lever of the
hand-operated press reaches its end-stop.
d. Mount the coupling at the other end of the grease line in a similar way.
ATTENTION:
A simple hand-operated press that can be placed in a bench vice is used with
DN4 high-pressure lines. The thin-walled sleeve of the couplings for this
type of grease line must be pressed exactly in the middle, so that small piec-
es of unpressed sleeve remain on both sides. This note of attention does not
apply to sleeves meant for use with a hydraulic press. Those types of sleeves
must be pressed over their whole length.
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