Maintenance Technology April 2017 - 46

LUBRICATION STRATEGIES
Tubing

3. How many lubrication points

are included in the system and
where are they located on the
machine? This question is required
to map out a central pump location
and injector or delivery block
locations so the line distances can
be measured for material take-off
amounts, and in the case of long
line lengths, to calculate pressure
drop so the correct line diameter(s)
can be calculated.
4. What lubricant type and grade/
viscosity are you planning to
use? The fact that grease requires
higher pressure than oil to move
through blocks and lines will affect
the choice of line material type and
diameter.
5. In what type of working environment will the system be used?
Ambient and working temperatures
can affect line integrity. Furthermore,
if unprotected, copper, brass, and
plastic lines can be easily damaged in

46 |

MAINTENANCE TECHNOLOGY

While steel tubing (Fig. 1) takes
considerably longer to install, the
additional, but small, up-front
Compression Sleeve
cost can pay long-term dividends,
For Metal Tubing
especially when a problem,
For Nylon Tubing
such as a leak or a blocked line,
occurs. The plastic tubing (Fig.
2) is bundled together. making
Tapped Fitting
it difficult to individually trace
Threaded Fitting
a line from the pump to the
lube block. In addition, these
Fig. 3. If single-chamfered compression fittings
lines are difficult to physically
designed for nylon lines are mistakenly used on
attach to the machine frame and,
steel lubrication-delivery lines that require doubleconsequently, more vulnerable to
chamfered fittings, seals can be compromised,
damage.
causing leaks at the fittings. (Courtesy Bijur Delimon
Although the steel lines used
International, Morrisville, NC, bijurdelimon.com.)
in Fig. 1 are dirty, they all have
line-ID (identification) tags
that make them easy to trace and
high traffic areas-especially where lift
troubleshoot. The steel-line system also
trucks are used regularly.
6. What is your budget? Cost should not looks more engineered and permanent in
be a factor in line choice. Figures 1 and comparison with the bundled-plastic-line
2 on page 45 show progressive-divider example.
Once you've gone through these six
blocks, one piped in correctly rated
questions, present the answers to your lubeplastic tubing and the other in steel.
Compression Nut
Compression Bushing

APRIL 2017


http://www.bijurdelimon.com http://www.uesystems.com http://www.ultrasoundworld.com http://www.reliableassetworld.com

Table of Contents for the Digital Edition of Maintenance Technology April 2017

Maintenance Technology April 2017 - 1
Maintenance Technology April 2017 - Cover1
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Maintenance Technology April 2017 - 1
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