User's Manual

FM60-7309 Operator’s Manual
Page 8 888-249-4855 • www.ZebraSkimmers.com • Zebra Skimmers Corporation
FM60-7309 Operator’s Manual
888-249-4855 • www.ZebraSkimmers.com • Zebra Skimmers Corporation Page 9
Chapter 4 System Operation & Maintenance
4.1 Oil Accumulation for
Ultraltration & Waste Discharge
Once the uid is drawn into the coalescing tank, it will
begin to separate into two main layers. The oil com-
ponent will oat towards the top of the tank and wa-
ter-based uids will accumulate near the bottom of the
coalescing tank. The degree of this separation will be
strictly determined by these factors:
• The strength of the water-based uids anti-emulsi-
cation components (as in metalworking uid, aka
coolants)
• The age and quality of the water-based uid to be
manually discharged
• The age and quality of the oil to be ultraltered
• Chemical instabilities caused by other additives en-
tering uid pool
• The ow rate of the coalescing system
Maintain a regulated ow rate so it provides for a proper
hold time for all uids to separate, usually 1-2 gallons
per minute.
If there is not a complete separation of the oil and water
portions, then a slower ow rate may be necessary, as
your uids have lost the ability to gravity separate within
10-20 minutes. You may notice a third layer which does
not completely separate at all. These are called inverse
layers, and are generally caused by high-pressure sys-
tems which further emulsify oils into one another. Con-
sider this layer as waste and discharge it regularly.
The Snapdragon Sierra is not guaranteed to separate
a straight oil from another straight oil and/or tramp oils.
Before reusing any straight oil, verify its integrity.
Manually discharge the wastewater portion to a waste
container, via the ball valve, so as not to recirculate it
through the ultralter and into your preferred holding
vessel. NOTE: We recommend maintaining a waste
water level of about a third of the tank heighth to main-
tain the separated uid layers. ALWAYS discharge the
waste uid while the pump is running to prevent vacuum
loss in the waste discharge pipe.
4.0 Installation & Usage Guidelines
1. Inspect the unit to make sure it is in good operat-
ing condition.
2. Fill the coalescing tank with 3 gallons of water to
ll the waste discharge pipe column. NOTE: If
the coalescer tank is not pre-lled, oils will enter
this column and your rst waste discharge may
contain oil until this column lls with water-based
uid.
3. Secure the ltered oil return hose to your pre-
ferred holding vessel using the magnet, pro-
vided.
4. Install your preferred uid intake attachment, ac-
cording to the guidelines in Section 3.0, quick-
connecting it to the uid intake hose.
5. Connect your air hose to the air connection t-
ting.
6. Lift the air regulator knob and adjust until the
pressure is approximately 10-20 psi. NOTE:
You will need to adjust this pressure higher as
the lters ll with debris, if there is a blockage
in a line or tting, or there is a loss of vacuum
pressure due to an improper seal. In each of the
previous cases, it is recommended to correct
the problem and not use excessive pressure
to operate the system. This will ensure a proper
ow rate for maximum oil/water separation.