Larzep HBM Series, Operating And Maintenance Instructions Manual

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Instruction Manual
Hydraulic Electrical Pumps “HBE” “HBM”
3.3 START UP
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Place the machine in the working zone in such a way as to ensure maximum stability. You should also make sure that the operator is
sufficiently far away from the danger zone.
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The operator should check that no one is in the danger zone and that the machine is in perfect working order and ready to be switched on.
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Start the machine and operate according to the established method.
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In the event of problems of any type with HBE‐type electrical control pumps, press the RED EMERGENCY STOP BUTTON, block the load
mechanically if possible and resolve the problem before resuming operation.
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With HBM‐type manual control pumps, set the valve control to position ‘C’, stop the motor by pressing the red switch and block the load
mechanically if possible. Resolve the problem before resuming operation.
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Once you have finished, check the machine for any possible damage, disassemble it, clean it and store in a safe place.
4. MAINTENANCE
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Make sure that the machine is switched off and not under pressure before carrying out any maintenance operation.
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Keep the pump clean and in good condition, especially as regards connections, threads, joints and quick plugs, etc.
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Use the tank indicator to monitor the oil level. If necessary, top up through the filling plug, using Larzep hydraulic oil (ref. AZ8902).
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Electrical connections and their periodic checks should be carried out by fully qualified personnel only. Any loose or damaged cables, etc.
should be repaired or replaced immediately.
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If you are working in corrosive or aggressive environments, protect the machine accordingly and clean on a regular basis.
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Change the oil in the tank regularly – at least once a year if working in dirty environments and/or if the hoses are connected and
disconnected frequently.
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To change the oil, remove the lid and clean both the tank and the filter, using materials that do not leave residue. When reassembling, use a
new tank gasket. Fill the tank with Larzep oil, monitoring the quantity using the level provided.
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Do not dump used hydraulic oil. Collect and dispose of it according to the relevant waste disposal regulations.
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In the event of a failure or malfunction, all repairs should be carried out by specialist personnel using Larzep spare or replacement parts.
5. PROBLEMS, MALFUNCTIONS AND SOLUTIONS
5.1 OPERATIONS THAT CAN BE CARRIED OUT BY THE USER
5.1.1 The cylinder or hydraulic tool does not move forward.
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Tank under pressure.
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Replace the transportation plug with the ventilation plug.
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Not enough oil in the tank.

Check level and refill.

Pump not primed.

Fill the tank up to the max. level.
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Tilt the powerpack from the front side (where is assembled the valve) up.

Turn on the machine without activating the remote pendant / with the distributing control set to ‘C’ for a few minutes until the
pump expels the air from the circuit. This operation can be optimised by stopping and starting the motor every 5 seconds.

As the pump is gradually primed, the noise made by the machine changes.

Take down slowly the powerpack to the initial horizontal position.
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Pressure regulating valve incorrectly adjusted.
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Readjust the external pressure limiting valve.

Hose quick plugs not correctly connected.

Check that all plugs are connected properly.
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Filter dirty.
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Remove the lid and proceed as described in the Maintenance section.
All these operations can be carried out by the user. Other operations should only be carried out by specialist personnel, preferably from an
authorised technical assistance service.
6. WARRANTY
LARZEP, S.A. guarantees its products against all design and manufacturing defects for the durations of two years from the date of purchase. This
guarantee does not include the ordinary wear of both metal and non‐metal parts, abuse, using the equipment beyond its rated capacity and any
wear or damage incurred as a result of using a hydraulic fluid which is not recommended by
LARZEP, S.A.
Please note that if the equipment is disassembled or serviced by anyone other than an authorized service dealer or by LARZEP, S.A ., this
guarantee is rendered null and void.
In the event of a warranty claim, return the equipment, to LARZEP, S.A . or the authorized dealer which sold you the hydraulic equipment,
LARZEP, S.A . will repair or replace the faulty equipment, whichever is deemed most appropriate. LARZEP, S.A. shall not be held liable for any
consequential damages or losses, which may occur as a result of faulty equipment.