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This Manual is the exclusive property of the Manufacturer. Reproduction, in any form whatsoever, even partially, is prohibited. 

 

 

Instruction Manual

 

High pressure piston pumps – Series NMT-EBCW, NMT-EBCH, XLTI-EBCH, XLTI-ESA 

Rev. 0 

Page 22 of 25 

 

 

 

6

 

MAINTENANCE 

 

Follow the instructions below to perform maintenance or repairs. 

 

 

Hang a signboard reading 

MAINTENANCE IN PROGRESS

” in a clearly visible position before starting work. 

 

Do not use flammable products and materials. 

 

Wear mineral oil resistant gloves, an overall (trousers must be worn outside the safety footwear at all times) and safety 
goggles when handling lubricants. 

 

Pay attention not to dump lubricant oils and grease in the environment. 

 

 

 

All maintenance interventions must be carried out by authorised and qualified personnel, and they must 
be recorded in the relevant logbook. 

 

 

 

Always adhere to all the safety rules described in Chapter 3. 

 

More specifically

, to keep the pump efficient over time, we recommend following the preventive maintenance cycle below. 

 

CONTROL 

DAILY 

WEEKLY 

50 H

 

500 H

 

1000 H*

 

1500 H*

 

CLEAN FILTERS 

 

 

 

 

 

OIL LEVEL/CONDITION 

 

 

 

 

 

OIL/WATER LEAKS 

 

 

 

 

 

HYDRAULIC SYSTEM 

 

 

 

 

 

1ST OIL CHANGE 

 

 

 

 

 

CHANGE OIL 

 

 

 

 

 

REPLACE SEALS 

 

 

 

 

 

REPLACE CHECK VALVES 

 

 

 

 

 

 

 

NOTE 1 
Maintenance cycles must be performed based on the type of work to which the pump is subjected. 
The work cycle, temperature and quality of the pumped fluid, the type and quality of the energy sources and the condition of the used 
accessories are all significant factors that have an impact on the service life of the pump components. 
NOTE 2 
The indication in the table refers to water as the pumped fluid. For more accurate instructions on how to replace the seals when the 
other permitted fluids are pumped, refer to the manual of the end machine in which the pump is incorporated. 

 

If the pump experiences a reduction of its performance levels, immediately check the type of problem using our 

Troubleshooting 

list as 

reference. If no problem arises, the pump must be checked after 1000 hours of operation and, then, every 500 hours. 

 

For Hawk pump maintenance, and for seal replacement in particular, use the tool kit supplied by LEUCO S.p.A. and fit genuine spare 
parts at all times. 

 

 

6.1

 

Overall maintenance 

 

Overall, the following checks must be made. 

Pump installation elements 

 

Check that the pump mounting screws are not loosened. 

 

Tighten them at the tightening torque specified in the installation design, if necessary. 

Summary of Contents for LEUCO HAWK NMT-EBCH Series

Page 1: ...NAL INSTRUCTIONS LEUCO S p A Via Pietro Colletta 20 42124 Reggio Emilia RE ITALY Tel 0522 923011 Fax 0522 923030 923040 This manual is an integral part of the product and must always be available to t...

Page 2: ...7 Fluids under pressure 10 3 SAFETY 11 3 1 Preliminary remarks 11 3 2 Residual risks 12 3 3 Personal protective equipment 12 3 4 Safe work procedures 12 3 5 Safety during lifting and handling operati...

Page 3: ...orage and all the steps in the life cycle of the high pressure piston pumps series NMT EBCW NMT EBCH XLTI EBCH XLTI ESA Before starting any operation on the equipment both the operators and qualified...

Page 4: ...te the hazard resulting from the presence of mechanical parts in motion during the pump work cycle e g transmission shafts gear motors etc SYMBOL MEANING COMMENT WARNING SIGNS SAFETY INFORMATION To in...

Page 5: ...anty exists extending beyond the description above All pumps supplied by LEUCO have been carefully checked during production and subjected to testing cycles before shipment To achieve the best perform...

Page 6: ...in parameters for the selection of a Hawk pump are the flow rate the pressure the rotation speed and the absorbed power The flow rate expressed in litres per minute is directly proportional to the rot...

Page 7: ...CONNECTING ROD F PISTON related components G OIL LEVEL INDICATOR H DELIVERY VALVE I INLET VALVE The pumping action is implemented by a number of pistons which are linked to the motion transmission sh...

Page 8: ...re piston pumps Series NMT EBCW NMT EBCH XLTI EBCH XLTI ESA Rev 0 Page 8 of 25 2 1 1 Technical characteristics The main dimensions and specifications are as follows SERIES NMT EBCW SERIES NMT EBCH Len...

Page 9: ...sprohibited Instruction Manual High pressure piston pumps Series NMT EBCW NMT EBCH XLTI EBCH XLTI ESA Rev 0 Page 9 of 25 SERIES XLT EBCH Length 341 5 mm Depth 266 mm Height 168 mm Weight 20 5 Kg Capac...

Page 10: ...n over time The lubrication oil which is specified later on in this manual was selected according to its compliance with the ATEX classification of the pumps Moreover overheating does not represent a...

Page 11: ...ions changes and repairs must be carried out by qualified technicians who are authorised by the Manufacturer No intervention must be allowed on the equipment by unauthorised personnel Operators shall...

Page 12: ...gns for personnel 3 3 Personal protective equipment Failure to wear personal protective equipment as specified in this section shall expose the operators to hazards The employer shall give personal pr...

Page 13: ...on the quantity of goods to be shipped packages may be placed on a pallet for easier lifting and handling When removing the packaging check that the components are in good condition and in the right q...

Page 14: ...de of TEFLON PTFE FKM Viton rubber fabric and NBR They must be disposed of in compliance with the specific instructions laid down in the existing laws No other products than those specified herein mus...

Page 15: ...nds and burns e To protect the injured person against further harm f To prevent useless or harmful actions such as to give drinks to the injured person or to move him her to reduce dislocations and or...

Page 16: ...ow for proper blood flow Treatment of deep wounds Protection against the risk of contagion is essential wear gloves and a face protector Dab at the bleeding point exerting a compression on the haemorr...

Page 17: ...ible coupling for direct coupling with an electric motor Make sure the pulleys are aligned if pulley driven adjust the belt tension and provide adequate safety protection The pump must be installed ho...

Page 18: ...k or waterworks B Shut off valve C Filter on inlet line D Auxiliary pump E Pressure gauge on intake line F Pressure gauge on delivery line G Safety valve H Pressure reducer I Regulating and bypass val...

Page 19: ...e pump is fitted for all connections 5 2 Preliminary operations before first start up A set of checks and inspections have to be made before the pump is started up to prevent errors or accidents durin...

Page 20: ...s shut down or not used for over six months so they must be changed The checks performed upon first start up sect 5 2 must be repeated whenever the pump is started after a long shutdown The oil level...

Page 21: ...flow rate factor The table shows an example pump with Pmax 100 bar and Flow rate 15 l min Select the pressure value in the first line and move down the table until the flow rate factor that is closes...

Page 22: ...IC SYSTEM X 1ST OIL CHANGE X CHANGE OIL X REPLACE SEALS X REPLACE CHECK VALVES X NOTE 1 Maintenance cycles must be performed based on the type of work to which the pump is subjected The work cycle tem...

Page 23: ...from the level gauge located at the back of the pump body see sect 2 1 letterG Top up the oil if necessary using the same type specified in sect 3 7 Fill the oil through the plug featured in the top p...

Page 24: ...if necessary The pressure regulation valve is not calibrated correctly or it is inefficient Calibrate the valve properly The piston seals are worn Check the condition of the seal housing Replace the...

Page 25: ...ns and information The pump must be scrapped by skilled personnel in compliance with the laws existing on safety at work The disassembled components must be separated based on the type of constituting...

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