Roth DWT Installation Manual
22
Lubricating & Hydraulic Oil Storage and Dispensing
Section 7 - Yearly Maintenance and Troubleshooting
Yearly maintenance
1.
Inspect the site (floor or pad) for any shifting, cracking or unevenness. If any of these
conditions exist the integrity of the tank and the installation may be compromised. Steps
must be taken to provide a sturdy, level site for the tank.
2.
Check that the tank is firmly and squarely set on the base.
3. Inspect all four sides of the tank, the base, and the top for any areas where the galvanized
coating has broken down, allowing rust to start. If any spots like this are found, then lightly
clean the area with steel wool or fine grit sandpaper, wipe clean, and then coat with any zinc
bearing paint intended for galvanized metal.
4. Inspect all the seams in the tank, particularly the seam between the tank body and the top.
If there has been excessive pressurization of the tank during filling, the rivets that hold the
top in place can be seen pulling into or through the material behind them or in a lifting of the
top’s rim to expose the tank body’s edge. If either condition is noted, contact Roth Industries
to arrange an inspection of the tank.
5. Check the plastic cap nuts for tightness. They have been found to gradually loosen with
the natural expansion and contraction of the tank during filling and emptying, as well as the
expansion and contraction of the plastic nuts themselves from the temperature changes. If
they are loose turn them until they are hand tight. This will be sufficient to seal the gasket
with the appropriate pressure.
6. As pipe joints can loosen over time, inspect all pipe joints for evidence of leakage by fuel
oil. If such evidence is found, then contact an oil service technician or plumber to come and
retighten the joints.
7.
Inspect fill and vent piping for plumbness and that the piping slopes back to tank. Check to
see the support brackets are secure and are keeping the weight of the pipes off the tank.
8. Check the top of the tank for any stains that may have occurred from oil seeping onto the
top of the tank. If there is oil present on top of the tank, then this must be cleaned up or it
will gradually seep into the interstitial space between the two tanks. If the stains are old with
no odor, cleanup is optional.
9.
Oil stains or oil on top of the tank is usually a sign that the tank was overfilled at some point.
The oil company should be notified about this leakage and to verify that the Vent Alarm is
working correctly. If it is, then further investigation needs to be done to determine how the
overfill occurred and to ensure it isn’t repeated.
By following these procedures, the Roth EcoDWT plus 3 will provide decades
of reliable and trouble free oil storage. If in doubt, always call the Roth certified
installer or use the numbers in this manual to reach Roth Industries.
