Larzep SM Instructions for use
V01.2013
INSTRUCTIONS & MAINTENANCE SHEET
HYDRAULIC CYLINDERS
2
DECLARATION OF CONFORMITY
DECLARACION DE CONFORMIDAD
LARZEP, S.A.
Dirección: Avda. Urtiaga, 6
48269 Mallabia ESPAÑA
Declaramos bajo nuestra exclusiva responsabilidad la
conformidad de los productos a los que refiere esta
declaración, con las disposiciones de la directiva:
2006/42/CE
DECLARATION OF CONFORMITY
We, LARZEP, S.A.
Address: Avda. Urtiaga, 6
48269 Mallabia SPAIN
Declare under our sole responsibility that the following
products to which this declaration relates conform with
the provisions of Directives:
2006/42/EC
DECLARATION DE CONFORMITE
Nous, LARZEP, S.A.
Adresse: Avda. Urtiaga, 6
48269 Mallabia SPAIN
Déclarons sous notre seule responsabilité que les
produits auxqueis se réfère cette déclration sont
conformes aux dispositions des Directives:
2006/42/EC
DICHIARAZIONE DI CONFORMITÀ
Noi, LARZEP, S.A.
Indirizzo: Avda. Urtiaga, 6
48269 Mallabia SPAIN
Dichiariamo sotto la nostra esclusiva responsabilità che i
prodotti ai quali questa dichiarazione si riferisce sono
conformi quanto previsto dalle Direttive:
2006/42/EC
DECLARAÇÁO DE CONFORMIDADE
Nós, LARZEP, S.A.
Endereço: Avda. Urtiaga, 6
48269 Mallabia SPAIN
Declaramos, sob nossa única responsabilidade, que os
seguintes produtos, incluídos nesta declaração estão em
conformidade com o disposto na Directiva:
2006/42/EC
VAATIMUSTEMUKAISUUSVAKUUTUS.
Me, LARZEP, S.A.
Osoite: Avda. Urtiaga, 6
48269 Mallabia SPAIN
Vakuutamme yksinomaan omalla vastuullamme, että
seuraavat tuotteet, joihin tämä vakuutus liittyy, ovat
seuraavien Direktiivien vaatimusten mukaisia:
2006/42/EC
ÖVERENSSTEMMELSESERKLÆRING
Vi, LARZEP, S.A.
Adresse: Avda. Urtiaga, 6
48269 Mallabia SPAIN
Erklærer på eget ansvar, at følgende produkter som er
omfattet af denne erklæringen, er i overensstemmelse
med bestemmelsene i Direktiv: 2006/42/EC
VERKLARINGVAN OVEREENKOMST.
Wij, LARZEP, S.A.
Adres: Avda. Urtiaga, 6
48269 Mallabia SPAIN
Verklaren geheel onder eigen verantwoordelijkheid dat de
volgende produkten, waarop deze verklaring heeft in
overeenstemming zijn met de bepalingen van Richtlijn:
2006/42/EC
ERKLÆRINGOM OVERENSSTEMMELSE
Vi, LARZEP, S.A.
Adresse: Avda. Urtiaga, 6
48269 Mallabia SPAIN
Erklærer på eget ansvar, at følgende produkter som
dekkes av denne erklæringen, er i overensstemmelse med
estemmelsene i Direktiv: 2006/42/EC
FÖRSÄKRAN OM ÖVERESSTÄMMELSE
Vi, LARZEP, S.A.
Adress: Avda. Urtiaga, 6
48269 Mallabia SPAIN
Försäkrar under eget ansvar att följande produkter som
omfattas av denna försäkran är i överensstämmelsemed
villkoren i Direktiv: 2006/42/EC
ÜBEREINSTIMMUNGSERKLÄRUNG
Wir, LARZEP, S.A.
Anschrift: Avda. Urtiaga, 6
48269 Mallabia SPAIN
Erklären aufeigene Verantwortung, , daß folgende
Produkte, auf die sich diese Erklärung bezieht, mit den
Bedingungen der Direktiven, 2006/42/EC
Cübereinstimmen.
Tipo, Type, Typ, Tyyppi.
SM / SH / SP / SMP/ SPR / SX / SMX / ST / STR / STX / SL / SAM / SAH / SAT / SATM / SSR / T / TE/ TD / D
/ DH / DDR / DAH / DDA / DM / DI / JM / JH / JP / Z / ZR / W / WP / X / HAM / HAE / HAZ / HAG / HAS /
HFM / HFE / HAP / HAT / HAB / WI / CK / CC / CN / FU / FV / FZ / FA / CY / AA / AU / CT / C / KC / LAS /
LAX
A / AB / AC / B / AF / F / HN / HL / DLG / VA / VB / VC / VZ / ECE / ECM / ECZ / EE / EM / EZ / CA / CS
AZ / AP / AR / AV / AS / AT / AX / AY / AM
Mallabia, ESPAÑA 2009 / 12 / 29
LARZEP, S.A.
Lugar y fecha, place and date, lieu et date, plats och datum,
paikka ja päivämäärä, udstedelsessted og-dato, ort und
datum, plaats en datum, local e data, luogo e data.
Nombre y firma, name and signature, nom et signature,
namn och underskrift, nimi ja nimikirjoitus, navn og
underskrift, name und unterskrift, naàm en handtekening,
nome e assinatura, nome e firma.
3
INDEX PAGE
Declaration of Conformity 2
Index 3
Warranty 3
Essential safety requirements 4
Receipt of goods 6
Single acting hydraulic system 6
Start up of a single acting installation 7
Double acting hydraulic system 8
Start up of a double acting installation 9
Operation 10
Manteinance 10
Breakdowns and repairs 11
WARRANTY
LARZEP, S.A. guarantees its products against all design and manufacturing defects for 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.
4
ESSENTIAL SAFETY REQUIREMENTS
The correct union of a pump to a cylinder via a hydraulic hose constitutes a machine
designed for lifting, pulling, folding and retaining operations, etc., that, due to its
high thrust capacity requires safe use in order to avoid accident risk.
Read the instruction manual carefully and practise using the equipment before
application.
Choose the most suitable model for the application from the wide range available,
and make sure that it will not exceed 80% of its nominal capacity and stroke during
normal operation.
Use protective goggles for eye protection.
Use safety shoes for feet protection.
Use protective gloves for hand protection.
Do not modify the device (welded parts, lengthening drive levers, etc.).
Do not use the hoses for transporting the device. Use the handles on the cylinders
(when appropriate) and set the pump lever to the transport position.
When filling the pump with oil, use always Larzep hydraulic oil. Fill only to the
indicated level and remember that the cylinder piston should be retracted.
Before using a pump from other manufacturer, contact LARZEP’s Technical
Department. Otherwise, LARZEP will not be liable for any damage that may arise.
Before starting operation, check that the installation is correct, the operator
position is safe and the working zone is out of bounds to all personnel.
In all cases, the operator should have received adequate training regarding the
handling of the device and logical safety criteria associated with the movement of
heavy loads.
Never exceed the maximum working pressure of the cylinder. Ensure that all the
equipment and accessories are suitable for the maximum working pressure.
5
RIGHT
ESSENTIAL SAFFETY REQUIREMENTS
WRONG
Place the equipment on a flat and solid area. Define stable zones for
applying the load and safety zones for operators, separating them
through the use of hoses of enough length. Use our base plates if
necessary.
Secure the load mechanically once the movement has been completed
and avoid operating underneath them.
Center the load in the cylinder. Use the entire cylinder’s useful support
surface, both on the head and on the base. Use tilting saddles under
side loads.
Do not expose the equipment to intense heat sources (welding), nor to
temperatures above 65°C.
Remove loads before carrying out maintenance operations and always
work in clean, well-lit areas.
Include control elements (pressure gauges) in the installation in order to
enable the operator to monitor the pressure in the system and ensure
that the equipment’s nominal capacity is never exceeded. Be prepared
to use safety valves and accessories if safety criteria demand it.
The cylinder controls should be activated manually, as should the
connections between elements equipped with couplers.
Once you have finished using the device, check that it has not been
damaged, clean it and protect it ready for storage. If there are worn or
damaged pieces, replace them with new ones.
Clean the couplers before connecting and ensure the connections are
perfect (first insert as far as the coupler will go and then screw it by
hand). A bad connection may result in improper functioning and may
even generate a safety hazard.
Install the device in such a way as to ensure that the hoses are not
subjected to sharp or forced bends or thrust actions that may cause
them to break. Never disconnect the hoses when the system is
pressurized.
6
RECEIPT OF GOODS
Unpack and visually check all the components, making sure that there are no oil leaks, loose or damaged
couplers, damaged threads, etc. Never use components that are damaged or appear to be in poor
condition.
SINGLE ACTING HYDRAULIC SYSTEM
The single acting hydraulic cylinders are fitted with one female quick coupler. If you have to fit the coupler
in the cylinder, apply teflon around the 3/8" NPT male thread of the coupler.
Assemble the device in accordance with the instructions given in the diagram, first checking that you have
all the necessary material.
-Remove the dust protectors from the quick couplers and from the hose.
-Clean quick couplers, hose ends and connectors.
-Screw the male coupler to the hose. For that, apply teflon around the 3/8" NPT male thread of the hose.
-Connect the other hose end to the pump. For that, apply teflon around the 3/8" NPT male thread of the
coupler.
-Connect the hose end with the male coupler to the cylinder, tightening completely the couplers (first
insert as far as the plug will go and then screw it by hand). The couplers only must be connected or
disconnected when the hose is depressurised. For safety, as option, a manually operated check valve
AZ5200 can be mounted into the cylinder, that when is closed, allows oil flow in one direction only,
holding the load.
-Ensure the connections are perfectly engaged to ensure the correct function of the system.
-Bleed the cylinder. Locate the pump on a higher level than the cylinder, with the piston pointing
downwards and the coupler upwards. Extend and retract the cylinder several times, until it operates
properly.
SINGLE ACTING SYSTEM WITH 1 CYLINDER
Apply 2 rounds of teflon around all 3/8” NPT male threads of the system, in the thread
direction, leaving the first wire of the thread without covering to prevent the tape breaking.
Tightening Torque: 80 Nm.
Ensure that all the equipment and accessories are suitable for
the maximum working pressure.
7
SINGLE ACTING SYSTEM WITH 2 CYLINDERS
START UP OF A SINGLE ACTING INSTALLATION
LARZEP cylinders can operate vertically upwards, downwards or horizontally.
Check the correct installation and perfect functioning of the device with a load, in accordance with the next
procedure:
-Operate the pump to move the cylinder, following its operating instructions.
-If the cylinder is equipped with a mechanical end of stroke capable of withstanding the maximum device
pressure, continue pumping until the end of stroke is reached.
-If any control elements (pressure gauges) are available, you will be able to see how the pressure
increases along with the effort required to move the lever.
-Continue pumping until you reach the maximum pressure (700 kg/cm). When using a manual pump, in
this way you will be able to check the correct functioning of the internal safety valve and the absence of
oil leaks in the installation.
-Maintain system pressure for a few minutes without pumping, in order to check the correct functioning
of the pump’s check valve.
-Smoothly open the pump’s valve in order to protect the pressure gauge needle. In hand pumps, do not
force the drive screw when open, the cylinder will not move back more quickly if the screw is looser.
One turn is sufficient.
-If the cylinder has a spring return (SM, SMP, SMX, SH, TE, T, SAM, SAH, SATM, CY, KC) the piston will
move back automatically. The return speed may be slow in some applications. In this case, we
recommend the use of double acting cylinders. In the case of load return cylinders (SP, SPR, SX, SL, SSR,
ST, STR, STX, SAT), you will need to push the piston back using more or less force, depending on the size
and position of the cylinder.
-In cylinders without mechanical end of stroke (SSR, ST, STR, STX) this type of test cannot be carried out.
If you do not have a test bench, you will have to test the installation using the actual load in the
application. This operation should be carried out with extreme care, by experienced personnel, and
maximum safety measures should be applied.
-Repeat the processes as many times as necessary until you are comfortable handling the device.
-When using close or check valves, or working with various cylinders via flow distributors, remember to
take into consideration the effect these accessories may have on the functioning of the device, and
establish an operating procedure in order to avoid unwanted effects.
8
DOUBLE ACTING HYDRAULIC SYSTEM
The double acting hydraulic cylinders are fitted with two female quick couplers. If you have to fit the
couplers in the cylinder, apply teflon around the 3/8" NPT male thread of the coupler.
Assemble the device in accordance with the instructions given in the diagram, first checking that you have
all the necessary material.
-Remove the dust protectors from the quick couplers and from the hoses.
-Clean quick couplers, hoses ends and connectors.
-Screw the male couplers to one end of the hose. For that, apply teflon around the 3/8" NPT male thread
of the hose.
The right connection of the couplers is very important because with a wrong connection the system
does not work and also can cause overpressure that can break the cylinder. Note which hose connects
to the advance chamber and which one to the return chamber. Connect the hose from the return
chamber and then connect the hose from the advance chamber. The couplers only must be connected
or disconnected when the hoses are depressurised.
For safety, as an option, a pilot operated check valve AZ5700 can be mounted to hold the load until the
pressure in the return line actuates the valve.
-Screw the hose from the return chamber to the pump. For that, apply teflon around the 3/8" NPT male
thread of the coupler.
-Connect the other hose end to the cylinder (return chamber), tightening completely the couplers (first
insert as far as the plug will go and then screw it by hand).
-Connect the second hose from the pump to the advance chamber, following the same procedure as with
the first hose.
-Ensure the connections are perfectly engaged to ensure the correct function of the system.
-Bleed the cylinder. Locate the pump on a higher level than the cylinder, with the piston pointing
downwards and the coupler upwards. Extend and retract the cylinder several times, until it operates
properly.
DOUBLE ACTING SYSTEM WITH 1 CYLINDER
Ensure that all the equipment and accessories are suitable for
the maximum working pressure.
9
DOUBLE ACTING SYSTEM WITH 2 CYLINDERS
START UP OF A DOUBLE ACTING INSTALLATION
LARZEP cylinders can operate vertically upwards, downwards or horizontally and are fitted with a safety
valve to prevent pressure intensification in the return chamber.
Check the correct installation and perfect functioning of the device with a load, in accordance with the next
procedure:
-All double acting LARZEP cylinders are equipped with a mechanical end of stroke capable of
withstanding the nominal pressure.
-Operate the pump to move the cylinder, following its operating instructions.
-When using a hand pump, turn the lever of the valve and pump. Oil will flow through the hose
connected to the opposite side that the valve lever is rotated. If the hose is connected to the cylinder's
advance chamber, the piston will move forward. The oil in the return chamber will flow freely through
the other hose to the pump tank. Flow is supplied by both, large and small pistons until the cylinder
reaches de load.
-Continue pumping until you reach the mechanical end of stroke. Pressurize installation to check for
leaks.
-Stop pumping and check (preferably using a pressure gauge) that the installation maintains the pressure
level.
-Turn the valve lever to the other side and pump. Oil will flow to the return chamber and the piston will
move back. The oil in the advance chamber will flow freely back to the tank.
-Repeat the processes as many times as necessary until you are comfortable handling the device.
-If using close or check valves, or working with various cylinders via flow distributors, remember to take
into consideration the effect these accessories may have on the functioning of the device, and establish
an operating procedure in order to avoid unwanted effects.
10
OPERATION
-SINGLE ACTING CYLINDERS, LOAD RETURN
When pressurizing the advance chamber, the piston starts moving until the pumping stops. When the
cylinder is depressurized, the piston will only return by the effect of an external load.
-SINGLE ACTING CYLINDERS, SPRING RETURN
When pressurizing the advance chamber, the piston starts moving until the pumping stops. When the
cylinder is pressurized, the piston returns by the effect of the spring.
-DOUBLE ACTING CYLINDERS
When pressurizing the advance chamber, the piston starts moving until the pumping stops. The return
chamber must be depressurized to retract the piston.
MAINTENANCE
-Use always LARZEP oil. The use of any other liquid will invalidate the warranty. Use DIN ISO 6743-4: ISO
HM32 for pumps and jacks, and ISO HM46 for powerpacks.
-If the oil is dirty, replace it completely.
-Retract completely the piston after its use.
-Depressurize the system.
-When the hoses are disconnected, fit the dust protectors to the quick couplers.
-Before storing the cylinder, check that there are no damages and clean and protect it for storage. If
there are worn or damaged pieces, replace them with original LARZEP, using appropriate tools and
personal safety equipment. This work must always be done by qualified and authorized personnel.
-Grease the areas exposed to wear or oxidation.
-Before a long-term storage, fully extend and retract the piston once, storing the cylinder upside down.
-Make an annual visual inspection.
-Every 3 years or when there are doubts of cylinder's safety and reliability, check that the piston extends
and retracts the whole stroke.
NOTE: To order spare parts, it is necessary to provide the serial number of the equipment.
11
BREAKDOWNS AND REPAIRS
PROBLEM
POSSIBLE CAUSE
SOLUTION
Cylinder will not advance when
pumping.
Oil level in pump is low.
Check level.
Incorrect coupler connection.
Check connections.
Pump malfunctioning.
Check pump instructions.
Pump release valve open.
Close the valve.
Load exceeds the capacity of the
system.
Use appropiate cylinder.
Cylinder seals leaking.
Replace seals with new ones.
Cylinder will not advance properly.
Oil level in pump is low.
Check level.
Incorrect couplers connection.
Check connections.
Pump malfunctioning.
Check pump instructions.
Air in the hydraulic system.
Bleed the circuit
Blocked hose.
Check connections and no bends
on hose.
Cylinder seals leaking.
Replace seals with new ones.
Leaking connection.
Check connections.
Cylinder will not reach or hold
pressure.
Pump malfunctioning.
Check pump instructions.
Leaking connection.
Check connections.
Cylinder seals leaking.
Replace seals with new ones.
Cylinder will not retract.
Pump tank over-filled.
Check level.
Pump release valve closed.
Open the valve.
Incorrect coupler connection.
Check connections.
Blocked hose.
Check connections and no bends
on hoses.
Damaged cylinder.
Repair or replace the cylinder with
a new one, by qualified personnel
or by LARZEP or LARZEP's Technical
Services.
Cylinder leaks oil.
Faulty seals.
Replace seals with news.
Loose connections.
Check connections.
Damaged cylinder.
Repair or replace the cylinder with
a new one, by qualified personnel
or by LARZEP or LARZEP's Technical
Services.
Safety valve leaks oil.
Incorrect couplers connection.
Check connections.
Faulty coupler.
Replace with a new one.
Coupler leaks oil.
Faulty coupler.
Replace with a new one.
Hose leaks oil.
Faulty hose.
Replace with a new one.
The cylinders must always be handled and repaired by qualified personnel.
NOTE: To order spare parts, it is necessary to provide the serial number of the equipment.
This manual suits for next models
87
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