MARCO UP2/OIL 24V

Description

Self-priming electric pumps with helical bronze gears for transferring lubricating oils and viscous liquids. Features a nickel-plated brass body and stainless steel shaft. Particularly suitable for draining engine sumps with the special tubes kit (OK1) and for engine lubricating operations.

Technical Details

Fluids Allowed / Not Allowed

Note: Warranty expires if max fluid temperature is exceeded.

(*) Minimum flashpoint (PM): 38 °C

ISO 8846 Compliant Device

Ambient Conditions

Temperature: min. -10°C / 14°F / max. +60°C / 140°F

Warning: The indicated temperature ranges are applicable to all components of the pump. These limits must be respected to avoid damage or malfunctioning.

Operating Cycle

The pump can operate on a continuous cycle under the following conditions:

• Pressures not exceeding 50% of the maximum pressure indicated in the technical data.
• Motor temperature below 60°C/140°F - 70°C/158°F.

Higher pressures/ampere draw are possible with On/Off cycles, allowing the motor to cool down. Long pipelines, reduced diameters, bottlenecks, or dispensing guns can affect operating pressure. Ensure pressure and electrical draw do not exceed specified values.

Transportation and Handling

Due to its limited weight and dimensions, the pump does not require special handling or lifting equipment. When handling manually, wear normal personal protective gear (e.g., safety shoes with toe piece). The pump is carefully packed prior to shipment. Upon receiving, inspect packaging for damages and store the pump in a dry area at a temperature between -30°C (-22°F) and +70°C (158°F).

Installation

It is recommended that the pump be used according to normative safety standards and the following precautions.

Preliminary Checks

• Check for any damage to the pump during transportation or storage.
• Clean inlet and outlet ports, removing dust or packaging material.
• Verify that the available electrical power supply matches the specification requirements.

Positioning

The pump can be mounted in any position. Use suitable diameter screws corresponding to the mounting holes. Ensure correct directional flow as indicated by the arrow on the top plate. 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. Use adequate terminal blocks and connectors for tight fitment. Improper wiring can cause power losses and/or overheating of cabling.

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.

Tubing Connections

• Before making any tube/hose connections, check that the inlet ports have no end caps.
• Do not position the pump at an excessive height relative to the fluid level to be transferred, as this may prevent fluid draw and cause damage. Ensure the outlet tube is empty and without chokes.
• Avoid choking the inlet or outlet tubes to optimize efficiency.
• An inlet filter is recommended, especially with fluids containing impurities (mesh ASTM no. 35). Frequent cleaning and maintenance of the filter is advisable. The standard filter withstands a maximum positive pressure of 0.5 bar.
• Utilize tubes and connection pieces resistant to the fluid types handled and avoid environmental dispersion.

Electrical Connection

Warning: Due to the EMI filter, the pump is NOT suitable for switching applications (PWM driver).

The electrical installation must include a protection fuse suitably rated as indicated on the motor label.

Warranty expires if no fuse is utilized.

Always mount the anti-vibration rubber fittings supplied with the pump kit to reduce noise and vibration. Electrical cabling size should depend on the distance between the pump and the battery/power supply (refer to Motor Data Table). Undersized cabling can cause overheating of electrical wiring, leading to a fire hazard, and voltage drop at the motor terminals, reducing efficiency. The flow rate indicated on the motor label is achieved with the internal tube diameter specified in the Pump Data Table. Tubes with smaller diameters will increase current and risk motor overheating.

Troubleshooting

Check Points if the Pump Has Stopped or Will Not Start

• Check battery power supply (voltage activity).
• Check if the fuse has blown.
• Check for foreign matter in the pump body: disconnect power, unscrew the four fixing screws, remove the front cover plate, inspect the chamber, and replace the cover plate in its original position.
• Avoid running the pump dry for more than a few minutes. Pumps found defective that have run dry are not covered by warranty.
• The average life span of motor commutator brushes is approximately 2500 hours under normal operating conditions. Brush wear may cause stoppages after this period.

Why the Pump Will Not Prime Itself?

• Pump is fitted at an excessive height above the fluid level.
• Pump has run dry for too long a period.
• Long periods of inactivity (add liquid directly into the chamber before start-up).
• Air leak at the suction pipe (cuts in pipe, inadequate hose clamps, malfunctioning filter, clogged filter).
• Air leak at the front plate cover (loose fixing screws, poor seal effectiveness).
• Faulty electrical cable connections.
• Obstructions or restrictions in suction or delivery pipes, or use of special devices (e.g., automatic spray pistol or Aquastop).
• Presence of liquid loops in the outlet tube.

Good Practices Ensuring a Well Functioning Pump

If the pump will not be used for at least 30 days (especially with water), run fresh water through it, then loosen the front plate screws. Upon re-use, run the pump briefly and tighten the screws again. Check motor current value at maximum operating pressure against motor label specifications.

Normal Maintenance

• Check and keep the inlet filter clean frequently.
• Check and clean the chamber from any foreign matter monthly.
• Check that electrical wiring is in good condition monthly.

Indicators That the Pump is Functioning Correctly

• Temperature of body and motor frame is within 60°C (140°F) and 70°C (158°F).
• Regular flow and constant noise levels.
• Amp-draw within the limits indicated in the diagrams.

To Open the Pump

It is recommended to consult a specialized service technician for any repair work or replacement of worn internal components, using exclusively original spare parts. During the warranty period, this must be done only by authorized MARCO S.p.A. personnel, otherwise the warranty will expire.

Environmental Disposal

It is the responsibility of the owner to dispose of this product via specific refuse collection structures indicated by the government or local governing authorities.

Packaging Environmental Disposal

Users are invited to effect proper waste separation to facilitate the recycling of packaging materials.

Warranty

1. The warranty period is 2 years from the date of purchase upon presentation of the sales invoice.
2. If the original sales invoice is not available, the 2-year warranty period will be valid from the production date.
3. The warranty becomes null and void in case of incorrect utilization or disregard of the instructions contained herein.
4. The warranty covers original production defects only.
5. The warranty does not cover any related installation costs.
6. Transport costs are refundable only if the warranty claim is duly accepted by MARCO Spa and are limited to 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 deemed faulty.

Exploded View

The following table lists the components of the pump:

The exploded view diagram visually represents the pump's components and their assembly, with numbered parts corresponding to the table above. It also shows the anti-vibration mount assembly.

Dimensions

The following diagram provides the external dimensions of the pump:

Overall Length: 103 mm (4 1/8")

Overall Height: 76 mm (3")

Mounting Bracket Height: 126.5 mm (5")

Width (Body): 80 mm (3 1/8")

Diameter (Body): 53 mm (2 1/8")

Inlet/Outlet Ports: 13 mm (1/2") diameter

Mounting Hole Diameter: 5 mm (1/4")

Mounting Hole Spacing (Width): 103 mm (4")

Mounting Hole Spacing (Length): 38 mm (1 1/2")

Height from mounting surface to top: 39 mm (1 1/2")

Height from mounting surface to bottom: 16 mm (5/8")

Distance between mounting holes (side): 42 mm (1 5/8")

Distance between mounting holes (front/back): 34 mm (1 3/8")

Height to connection points: 24 mm (7/8")

Connection port diameter: 17 mm (5/8")

Diagrams

Electrical Absorption

This diagram shows the electrical current (Amps) drawn by the pump at 24V across a temperature range from 25°C to 45°C. The current is approximately 1.3A at 25°C and decreases slightly to about 1.0A at 45°C.

Flow Rate

This diagram illustrates the flow rate in liters per minute (l/min) as a function of temperature (°C) for different hose diameters: Ø 12, Ø 6, and Ø 8. For all diameters, the flow rate increases with temperature. For example, at 45°C, the flow rate is approximately 3.3 l/min for Ø 12, 1.0 l/min for Ø 6, and 2.0 l/min for Ø 8.

E.C. Declaration of Conformity

MARCO S.P.A. confirms that the product, 16422013 - UP2/OIL gear pump for lubricating oil, is in conformity with Directive 2014/30/EU (electromagnetic compatibility) and Directive 2006/42/EC (machines).

This declaration is valid for products produced in accordance with the technical documentation. The following standards are applied for Electromagnetic Compatibility verification:

• EN 55014-1: Electromagnetic compatibility. Requirements for household appliances, electric tools, and similar apparatus. Part 1: Emission.

This declaration is given under the sole responsibility of:

MARCO S.P.A.
Via Mameli 10 - 25014 Castenedolo - Brescia - Italy
Tel. 030/2134.1 Fax 030/2134.300