Marco 164 936 15-US - OCK8-E User manual

164 936 15-US - OCK8-E 12/24V
27/11/19 Rev.01
© S.p.A.
INSTRUCTIONS FOR USE
SELF-PRIMING ELECTRIC PUMP
FOR TRANSFERRING VARIOUS LIQUIDS

© S.p.A.
FEATURES
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· The circuit lights up:
o The green and red LEDs slowly flash, while the circuit is performing
the initial self-check and parameter reset.
o If something fails, the pump does not come out of this condition and
the red and green LEDs continue to blink indefinitely.
· After self-check:
o The "RUN" LED starts blinking: the pump is waiting for the direction
to be chosen.
o By pressing the “CHANGE DIRECTION” button, the pumping
direction can be set and the relative LED will start to blink together
with "RUN" LED.
o If you do not press the “CHANGE DIRECTION” button when only
the "RUN" LED is blinking, but instead you press the "ON/OFF"
button, the pump will not start: the "FILL" and "DRAIN" LEDs will
flash fast alternately to indicate "I do not know in which direction I
have to move".
· After choosing the direction, pressing the "ON / OFF" key will start the motor:
the LED indicating the direction will become solid and the “FLOW” LED will
also light up indicating that the motor is running.
· The motor speed setting is set by default to the maximum achievable: if
current limitation occurs, the “FLOW” LED starts to flash, indicating that the
motor cannot maintain the revolutions due to excessive load.
· It is possible to change the motor speed (in 100rpm steps) by pressing the
“TURTLE” and “HARE” keys. The speed setting applies to both directions of
rotation and remains stored in the memory until the pump is switched off.
· To save the current direction and speed in permanent memory, to have them
by default each time the pump is switched on, press and hold down the
“CHANGE DIRECTION” key for a long time, until the direction LED starts
blinking. This operation with the pump switched off resets the direction to its
default value, but does not edit the speed value.

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· If the “ON/OFF” button is held pushed at power-on until the green led
flashes, the automatic start of the pump is toggled (i.e. if the pump starts
immediately after power on or if it waits an user input before starting).
· If the “TURTLE” button is held pushed at power-on until the blue led flashes,
the enabling of the audible signal at startup is toggled.
· If the “HARE” button is held pushed at power-on until the red led flashes, the
enabling of the external control is toggled. The external control needs a
special cable and has to be requested when the pump order is placed,
otherwise it just keeps the pump always on. The “ON/OFF” and the
“CHANGE DIRECTION” buttons are inhibited, and the red led flashes if
pressed. The long press of both these buttons is not inhibited, therefore their
standard function will keep working.
· By pressing for more than 3 seconds both the “TURTLE” and “HARE” keys
the keyboard lock is enabled, and every button pressed is ignored, also in
case of reboot or power cycle: if a button is pressed, the red led flashes
briefly. To disable it, long press the same keys again.

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REPORTING ERRORS
· If the control circuit is forced to lower the motor speed due to the power
limiter, when it reaches a threshold considered as "abnormal operation", the
red LED will start to blinking quickly and after 5 seconds the pump will stop.
· In the event of a short-circuit in the motor or a rotor suddenly blocked by a
foreign object in the gears, the motor stops immediately and the signal is
solid red.
· If an internal threshold temperature of 50 ° C / 122 ° F is exceeded, the
direction LED ("FILL" or "DRAIN") and the red LED will blinking slowly, the
frequency of the but will allow the user to to continue using the pump.
· If an internal temperature threshold of 65 ° C / 149 ° F is exceeded, the motor
will stop immediately and will not restart until it returns below 55 ° C / 131 ° F.
The signal is a slowly blinking red LED.
· If the supply voltage when the engine is running falls below 80% of that when
the pump is off, the motor will continue to operate but the error of excessive
voltage drop will be signaled by alternating blinking of the blue and red LEDs.
· If the supply voltage is less than 9.5 volts, all the LEDs flash and the pump is
prevented from turning on. If the pump was already on and this situation is
due to a voltage drop, it is switched off immediately.
· There are no timeouts for the maximum duration of the transfer or the
detection of a dry run: it is the user's responsibility to stop the pump if it is no
longer necessary, in the event that none of the above situations exists.
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PRODUCT DESCRIPTION
TECHNICAL DETAILS
APPLICATIONS
FLUIDS ALLOWED / NOT ALLOWED
Ø
Øtransfer of viscous liquids
Øcirculation of viscous liquids
Ødraining of engine sumps.
There are numerous fields of applications for the pump, however only exclusively with the
allowed liquids mentioned:
Transfer of oils, antifreezing
Self-priming electric pump for the transfer of liquids of varied nature. The pumping elements
are made up of bronze gears which can possibly even run dry for brief periods.
Tab.1 EN
CODE TYPE VOLT
50,82,6OCK8-E AWG 16lb
IP 67 Protection
(*) Internal tube Ø 1/2 in, water at 25 °C / (**) Length up to 6.6 ft
A164 936 15-US 12/24V 15 psi 4,9gpm
FUSE FLOW RATE (*) WIRE SIZE (**)PRESSURE WEIGHT
5
Tab.2 EN
DIESEL FUEL (*)
OIL (max 120 °C - 248 °F)
WATER (max 85 °C - 185 °F)
PETROL (GASOLINE) •
FLAMMABLE LIQUIDS with PM< 38 °C •
LIQUIDS WITH VISCOSITY > 20 cSt •
CORROSIVE CHEMICAL PRODUCTS • •
SOLVENTS • •
DAMAGE TO SEALS
OK
NO
(*) Minimum flashpoint (PM): 38 °C - 100 °F
INJURY TO
PERSONNEL
LIQUIDS DANGERS
WARRANTY EXPIRES IF MAX FLUID
TEMPERATURE IS EXCEEDED
FIRE / EXPLOSION
MOTOR OVERHEATING
PUMP CORROSION

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TRANSPORTATION AND HANDLING
INSTALLATION
PRELIMINARY CHECKS
POSITIONING
AMBIENT CONDITIONS
TEMPERATURE: RELATIVE HUMIDITY:min.-10°C 14°F-max.60°C 140°F max. 90 %
OPERATING CYCLE
Under conditions of high operating pressures the pump can be subjected to elevated
stresses and overheating and therefore should not be used for prolonged periods under such
conditions.
Due to limited weight and dimensions the pump does not require the use of any special
handling or lifting equipment. When handling manually, normal personal protective gear
should be worn (safety shoes with toe piece, etc.). The pump is carefully packed prior to
shipment. Upon receiving, the packaging should be inspected for damages and the pump
stored in a dry area.
It is recommended that the use of the pump be according to normative safety standards
and also as per the precautions listed below.
The pump can be mounted in any position. Fix the pump utilizing suitable diameter screws
corresponding to the holes.
Check that there has been no damage to the pump during transportation or storage. Both
inlet and outlet ports should be carefully cleaned removing possible dust or residual
packaging material. Verify that the available electrical power supply corresponds to the
specification requirements.
WARNING: the above indicated temperature ranges are applicable to all components
of the pump and these limits must be respected in order to avoid any possible damage
or malfunctioning.
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To ensure the correct directional flow of the fluid as indicated by the arrow on the top plate, it is
necessary to connect the positive pole (+) of the battery supply to the red wire on the motor
end-cap and the negative pole (-) to the black wire. Electrical connections must be made
using adequate terminal blocks and connectors ensuring a tight fitment of the electrical
cables. Bad wiring can cause power losses and/or overheating of the cabling itself.
Ø
Ø
Ø
Prior to making any tube/hose connections, check that the inlet ports have no end
caps;
Do not position the pump at a excessive height with respect to the minimum level of
the fluid to be transferred. Damage may occur if this height is exceeded as the pump
may not draw fluid. Make sure that the outlet tube is empty and without chokes;
Avoid choking the inlet or outlet tubes so that efficiency is optimized.
The use of an inlet filter is recommended especially with fluids containing impurities
(mesh ASTM no. 35).
Utilize tubes and connection pieces that are resistant to the fluid types handled and
avoid any possible environmental dispersion.
Ø
Ø
In this case frequent cleaning and maintenance of the filter is
advisable. The standard filter withstands a maximum positive pressure of 0.5 bar.
The electrical installation of the pump must include a protection fuse which is suitably rated
as indicated on the motor label.
Always mount the anti vibration rubber fittings supplied with the pump kit. Their usage
ensures a consistent reduction in noise and vibration levels. Electrical cabling size should
depend on the distance between pump and battery/power supply (see Tab.1 EN). The use of
undersized cabling can cause overheating of the electrical wiring and subsequent fire
hazard. There will also be a voltage drop at the motor terminals with a consequent reduction
in efficiency. The flow rate value indicated on the motor label is obtained with internal tube
diameter indicated on Tab.1 EN. Tubes with inferior diameters will cause an increase in
current with potential risk of motor overheating.
WARRANTY EXPIRES IF NO FUSE IS UTILIZED
WARNING: it is the responsibility of the installation technician to ensure a correctly
designed circuit installation fitted according to regulations. Environmental risks must
be taken into account with the installation.
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TROUBLESHOOTING
WHY THE PUMP WILL NOT PRIME ITSELF?
CHECK POINTS IF THE PUMP HAS STOPPED OR WILL NOT START
GOOD PRACTICES ENSURING A WELL FUNCTIONING PUMP
Ø
Ø
Ø
Ø
Ø
Check the effectiveness of the battery power supply (voltage activity);
Check if the fuse has blown;
Check for any foreign matter present in the pump body. To do this, disconnect the
power supply and unscrew the four fixing screws, remove the front cover plate and
inspect the chamber. Replace the cover plate in the same initial position after
inspection;
Avoid running the pump dry for more than a few minutes. Pumps found defective
that have run dry in the absence of fluid are not covered by warranty;
The average life span of the motor commutator brushes is approximately 2500
hours under normal operating conditions. Stoppages are possible due to brush
wear and tear after such a time period.
Ø
Ø
Ø
Ø
Ø
Ø
Ø
Ø
The pump is fitted at an excessive height above the fluid level
The pump has run dry for too long a period
Long periods of inactivity. In this case it is advisable to add liquid directly into the
chamber before start-up
Air leak at the suction pipe due to the following reasons, possible cuts in the pipe,
inadequate hose clamps, malfunctioning of the filter due to defective/worn seals or
filter clogged
Air leak at the front plate cover due to the following reasons, loose fixing screws,
poor effectiveness of the seal
Faulty electrical cable connections
Presence of obstructions or restrictions in the suction or delivery pipes or the use of
special devices (eg. automatic spray pistol or Aquastop)
Presence of liquid loops in the outlet tube
ØDirty bypass valve (VP45 series)
If it is expected that the pump will not be used for a period of at least 30 days, especially in the
case of usage with water, it is advisable to run fresh water through it and to then loosen the
front plate screws. Upon re-use, run the pump briefly (a few seconds) and tighten the screws
again. Check under conditions of maximum operating pressure that the motor current value
is within the motor label specifications.
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NORMAL MAINTENANCE
INDICATORS THAT THE PUMP IS FUNCTIONING CORRECTLY
TO OPEN THE PUMP
ENVIRONMENTAL DISPOSAL
WARRANTY
PACKAGING ENVIRONMENTAL DISPOSAL
Ø
Ø
Ø
Check frequently and keep the inlet filter clean.
Check every month the chamber and keep clean from any foreign matter.
Check every month that electrical wiring is in good condition.
ØReplace the rubber impeller every season or every 500 hours (for UP1 series).
Ø
Ø
Ø
Temperature of body and motor frame is within 60°C and 70°C (140 °F - 158 °F);
Regular flow and constant noise levels;
Amp-draw within the limits indicated in the diagrams.
ØIt is recommended that a specialized service technician be consulted for any
repair work or the replacement of worn out internal components, exclusively with
original spare parts; during the warranty period, only by authorized Marco S.p.A.
personnel, failing which the warranty will expire.
It is the responsibility of the owner to dispose of this product by means of the specific refuse
collection structures indicated by the government or the local governing authorities.
The user is invited to effect a proper waste separation, in order to facilitate the recycling
of the materials of which the packing is composed.
1) The Warranty period is 2 years from date of purchase on production of the
appropriate sales invoice.
2) Should the original sales invoice not be available, then the 2 year warranty
period will be valid from production date.
3) The Warranty becomes null and void in the case of incorrect utilization or
disregard of the instructions contained herein.
4) The Warranty only covers original production defects.
5) The Warranty does not cover any related installation costs involved.
6) Transport costs are refundable only in the case where warranty has been duly
accepted by Marco Spa and they will be limited to the actual shipment costs
between Marco Spa warehouse and the client's delivery address.
7) No credit notes or replacement items will be issued prior to the receipt and
proper testing of any Marco goods that are deemed faulty.
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EXPLODED VIEW
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DIMENSIONS
11

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DIAGRAMS
FLOW RATE DIAGRAM
0
1
2
3
0,0 14,5 29,0 43,5 58,0 72,5
psi
gpm
0
5
10
15
0,0 14,5 29,0 43,5 58,0 72,5
psi
A
AMPERE-DRAW DIAGRAM
12V
24V
12

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WARNING
HOT SURFACE
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164 936 15-US - OCK8-E 12/24V Electronic Gear pump
© S.p.A.
We confirm that the product:
E.C. DECLARATION OF CONFORMITY
This declaration is given under the sole responsibility of:
EN 55014-1 Electromagnetic compatibility.
Requirements for household appliances,
electric tools, and similar apparatus.
Part 1: Emission.
This declaration is valid for all products which are produced in accordance with the technical documentation
which is a part of this declaration. For verification of conformity with regard to the Electromagnetic Compatibility
the following standards are applied:
MARCO S.P.A.
Tel. [phone] Fax [phone]
Via Mameli 10 - 25014 Castenedolo - Brescia - Italy
is in conformity with the Directive 2014/30/EU (ex. 2004/108/EC) relating to electromagnetic compatibility
and with the Directive 2006/42/EC relating to the machines.
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Property of MARCO S.p.A reproduction prohibited. All rights reserved.
For further information visit our web site - www.marco.it
Marco S.p.A Via Mameli 10 - 25014 Castenedolo (Brescia) – Italy
tel. [phone] / Fax [phone]