Operating instructions
Hydraulic Tools
Hand pump LH1 / LH2
and accessories
84129/2430-85 GB
Issue 04.2009
replaces 03.2008
(Translation of the original operating instructions)
2
Contents Page
1. Danger classes 4
2. Product safety 4
3. Proper use 7
4. Main components of the hand pump 8
5. Functional description 9
5.1 Base pump 9
5.2 Adapter blocks 9
6. Mounting of base plates and valve blocks 10
6.1 Basics for mounting base plates and valve blocks 11
6.2 Base plates 12
6.3 4/3-way valve 13
6.4 2-way distribution valve 14
6.5 Oil distributor with pressure gauge connection 15
7. Connection options for hydraulic equipment 16
7.1 Direct connection into the pump head
(only in operation with single-acting cylinders) 16
7.2 Quick-disconnect couplings 17
7.3 Screwed joint couplings 17
7.4 Direct connection into the valve block 17
7.5 Direct connection into the oil distributor block 19
8. Commissioning 20
7.6 Direct connection into the base plate 20
8.1 Unlocking the pump 21
8.2 Bleeding the pump 21
9. Operation 22
9.1 Notes for a secure operation of the hand pump 22
9.2 Hand pump (basic pump) 22
9.3 Hand pump with base plate 22
9.4 Hand pump with 4/3-way valve 23
9.5 Hand pump with 2-way distribution valve 23
9.6 Hand pump with oil distributor and pressure gauge 24
9.7 Shutdown / storage 24
3
10. Transport 24
11. Maintenance and repair 24
11.1 Basic requirements 24
11.2 Maintenance 26
11.3 Hydraulic uid change or adding hydraulic uid 27
11.4 Care 27
11.5 Repair (hand pump) 28
11.6 Repair (accessories) 34
11.7 Repair (couplings and decals) 36
12. Troubleshooting 37
13. Technical data 40
13.1 Data of the hand pumps 40
13.2 Hydraulic uid recommendation 42
13.3 Operating and storage temperature ranges 42
14. Notes 43
4
Danger classes1.
We distinguish between various categories of safety instructions. The table shown below
shows you the overview, via the assignment of symbols (pictograms) and signal words, of
the concrete danger and the possible consequences.
Pictogram
Wear helmet with face guard
Damage /
injury to
human
device
- NOTE
Key word Denition Consequences
DANGER! Immediate danger
WARNING!
CAUTION!
CAUTION!
Proper recycling
Potentially
dangerous
situation
Less dangerous
situation
Danger of damage
to device /
environment
Advice for
application and
other important /
useful information
and advice
Death or major
injury
Potential death or
major injury
Minor or slight
injury
Damage to the
equipment,
damage to the
environment,
damage to
surrounding
materials
No injury /
damage to
persons /
environment /
equipment
Wear protective gloves
Wear safety shoes
Protect the environment
Read and follow operating
instructions
Product safety2.
LUKAS products are developed and produced in order to ensure the best performance and
quality with proper use.
The safety of the operator is the most important consideration in the product design.
In addition, the operating instructions are to help in using the LUKAS products safely.
In addition to the operating instructions, all generally applicable, statutory and other
binding rules for accident prevention and for environmental protection must be heeded and
disseminated.
The device must only be operated by educated persons who are trained in safety technology,
since otherwise there is a risk of injury.
5
We advise all users before using the device to carefully read through the operating instructions
and to follow the instructions contained therein without exception.
We also recommend that you get instructed by a qualied trainer in the use of the product.
WARNING / CAUTION!
The operating instructions for the hoses, the accessories and the connected
devices must also be heeded!
Even if you have already received instruction, you should read the following safety instructions
again.
Make sure that no body parts
or clothing get between the
openly visible moving parts of
the device.
Wear protective clothing,
protective helm with visor,
safety shoes and protective
gloves.
Immediately report changes
that occur (including changes
in operating behavior) to
the appropriate persons/
departments! If necessary,
immediately shut down and
secure the device!
Check the device for visible
defects or damage before and
after use.
Working under loads is
prohibited if they are raised
exclusively with hydraulic
devices. If this work is
unavoidable, sufcient
mechanical supports are
additionally required.
In the event of malfunctions,
shut down the device
immediately and secure it. You
should have the malfunction
repaired immediately.
Heed all safety instructions
and hazard warnings on the
device and in the operating
instructions.
Make sure that all safety
covers are present on the
device and in proper working
condition.
Safety equipment must never
be disabled!
Check all lines, hoses and
screwed connections for leaks
and externally visible damages
and repair immediately!
Escaping hydraulic uid can
lead to injuries and res.
Do not make any changes
(add-ons or conversions)
on the device without the
approval of LUKAS.
All safety instructions and
hazard warnings on the device
are to be kept intact and in a
legible condition.
Any work procedure that
detracts from the safety and/
or stability of the device should
be abandoned!
The maximum permissible
operating pressure must not
be changed.
6
Before switching on/engaging
the device or while operating
the device, it must be ensured
that no one is endangered by
the operation of the device.
When working in the vicinity
of live components and lines,
take appropriate measures for
preventing current transfers or
high voltage ashovers to the
device.
Prevent electrostatic
discharge, which has the
possible consequence of spark
formation, when handling the
device.
The device is lled with
hydraulic uid. These hydraulic
uids can be detrimental to
health if they are swallowed
or their vapours are inhaled.
Direct contact with the skin
should be avoided for the
same reason. Also, when
handling hydraulic uids, note
that they can negatively affect
biological systems.
Make sure there is adequate
lighting while working.
Always keep these operating
instructions easily accessible
at the site where the device is
used.
Observe all intervals that
are prescribed or specied
in the operating instructions
for recurring tests and/or
inspections.
For repairs only original
LUKAS accessories and spare
parts are to be used.
Make sure that you do not
get caught in the hose loops
and trip when working with or
transporting the device.
When the hand pumps are set
up, care needs to be taken
that they are not impaired by
extremely strong temperature
changes.
When operating and/or storing
the device, make sure that the
function and the safety of the
device are not impaired by
strong external temperature
differences or that the device
is damaged. Keep in mind that
the device can also heat up
when it is continuously used.
Before transporting the device,
always check to see that the
accessories are positioned
securely to prevent the
possibility of an accident.
Make sure you properly
dispose of all removed parts,
leftover hydraulic uid, leftover
oil and packing materials.
7
WARNING / CAUTION / ATTENTION!
The device is specied exclusively for the purpose represented in the operating
instructions (see Chapter "Proper use"). Any use that differs or goes beyond this is
considered improper. The manufacturer/supplier shall not be held liable for damages
resulting from improper use. The risk shall be borne solely by the user.
Proper use also includes heeding the operating instructions and complying with the inspection
and maintenance requirements.
Never work in a fatigued or intoxicated state!
Proper use3.
The LUKAS hand pump is used for the operation of devices of the LUKAS Hydraulic tools.
They can be used as an additional or replacement drive source along with the LUKAS
hydraulic unit (e.g. in areas at risk for explosion).
Use with equipment of other manufacturers is possible, but requires technical testing and
approval of LUKAS on a case-by-case basis.
WARNING / CAUTION / ATTENTION!
Always note the product limitations with respect to operating pressure, load limit
values and operating conditions. The operating pressure should not be higher
than the lowest maximum operating pressure of any system components.
The operating pressure should NEVER be set higher than that which is specied
in the "Technical Data" chapter. A higher setting may cause property damage
and/or injuries.
Make sure that the usable capacity of the hand pump (see chapter "Technical
Data") is sufcient for operating the connected cylinders or devices.
The required hydraulic uid operating quantity can be found in the chapter
"Technical Data" or in the operating instructions of the devices to be operated.
Accessories and spare parts for the hydraulic equipment can be obtained from your
authorised LUKAS dealer!
8
Main components of the hand pump4.
5
4
7
6
1 Hand relief valve
2 Port P
3 Return port T
4 Vent / ll cap
5 Pump lever
6 Reservoir
7 Lock
3
2
1
9
Functional description5.
5.1 Base pump
All LUKAS hand pumps of this series are two-speed, i.e. they have two operating speeds:
• A high speed in the low pressure range (LP) for fast extension of the cylinder or device
while unloaded
• A low speed in the high pressure range (HP) for controlled extension of the cylinder or
device while loaded
The switch from low pressure (LP) to high pressure (HP) is automatic at the factory setting
for changeover pressure (see chapter "Technical Data").
A pressure port "P" with a G1/4" thread and a return port "T" with an M10 thread (usually
closed) are directly available as ports on the pump.
With the basic pump it’s only possible to operate single-acting cylinders or devices.
To use other connections or double-acting cylinders or hydraulic devices, you will have to
mount adapter blocks (see chapter “adapter blocks”.
In some of the offered LUKAS hand pumps this adapter blocks are part of the shipment
and they are already mounted.
5.2 Adapter blocks
Adapter kit Ref. no. Weight
[kg]
Base plate 841297410 0,3 Add-on of a second return
Function / application
port (G1/4”) on the pump.
The base plate is a basic
requirement to mount valve
blocks and oil distributors
on the pump.
4/3-way valve 841297310 1,5 Control valve to extend
and retract double-acting
cylinders / hydraulic
devices.
10
2-way-distribution
valve N2W
841489903 2,1 Distribution valve to divide
one oil ow into two ows.
By closing or opening the
valve screw, the partial
ows could be regulated
and harmonized.
(Base plate is a basic
requirement)
Oil distributor with
pressure gauge
connection N4M
841489905 1,4 By use of the oil distributor
one oil ow can be divided
into 5 ows. The distributor
has 4 pressure ports
(G1/4”) and one pressure
gauge port (G1/4”).
(Base plate is a basic
requirement)
Mounting of base plates and valve blocks6.
ATTENTION!
When mounting base plates and valve blocks, hydraulic uid can leak from
the pump. To make sure that the quantity of the leaking uid is as small as
possible, the hand pump should be in a vertical position with the hydraulic
ports facing upwards, while mounting base plates and valve blocks
Make sure to store all plugs, screw plugs and/or dust caps in a way that
prevents them from getting dirty or lost.
Especially you will have to take care that the eventually leaking hydraulic uid
is being collected completely and being disposed professionally!
11
6.1 Basics for mounting base plates and valve blocks
1. Remove the closing screw of the return port
“T” and the ball behind.
2. Remove the closing screw of the pressure
line port “P” and the sealing ring behind.
3. Put the o-rings into the designated groovings
of the ports “T” and “P” .
Take care, that the surfaces are clean and
dust-free.
NOTE:
The o-rings are always part of the
mounting kits of the designated
adapter kits!
(The appropriate mounting kits
could be found in the spare parts
lists.)
12
6.2 Base plates
1. Put the base plate onto the pump head, so
that the boreholes “T” and “P” of the base
plates matches with the ports of the pump
head
Take care, that the surfaces are clean and
dust-free.
2. Put the 4 screws into the designated
boreholes and tighten them with a torque
of 20 Nm.
3. When you are connecting the hose assemblies directly to the hand pump, you will have
to mount appropriate designated couplings, ttings or closing screws to the ports “P” and
“T”. (tightening torque M
= 40 Nm)
A
ATTENTION!
After the end of the assembly close all hydraulic lines by using closing screws
and/or dust protection caps, to prevent the hand pump from impurities.
13
6.3 4/3-way valve
NOTE:
The article description and reference number of all listed position numbers could
be found in the spare parts lists.
1. Put the 4/3-way valve onto the pump head,
so that the boreholes “T” and “P” of the base
plates matches with the ports of the pump
head
Take care, that the surfaces are clean and
dust-free.
2. Put the 4 screws (Pos. 6.1) into the
designated boreholes and tighten them
with a torque of 20 Nm.
3. Now screw on the appropriate designated couplings, ttings or closing screws, to seal
the hand pump again.
(tightening torque M
= 40 Nm)
A
ATTENTION!
After the end of the assembly close all hydraulic lines by using closing screws
and/or dust protection caps, to prevent the hand pump from impurities.
14
6.4 2-way distribution valve
NOTE:
To mount the 2-way distribution valve, rst the base plate without closing
screws, ttings and couplings has to be mounted.
1. Put the sealing rings and the 2-way
distribution valve onto the pump head, so
that the boreholes “T” and “P” of the 2-way
distribution valve matches with the ports of
the base plate / pump head.
Take care, that the surfaces are clean and
dust-free.
2. Put the 4 screws into the designated
boreholes and tighten them with a torque
of 32 Nm.
3. When you are connecting the hose assemblies directly to the hand pump, you will have
to mount appropriate designated couplings, ttings or closing screws to the ports “P” and
“T”. (tightening torque M
= 40 Nm)
A
ATTENTION!
After the end of the assembly close all hydraulic lines by using closing screws
and/or dust protection caps, to prevent the hand pump from impurities.
15
6.5 Oil distributor with pressure gauge connection
NOTE:
To mount the oil distributor, rst the base plate without closing screws, ttings
and couplings has to be mounted.
1. Put the oil distributor onto the base plate,
so that the borholes „T“ and „P“ of the oil
distributor matches with the ports of the base
plate / pump head.
Take care, that the surfaces are clean and
dust-free.
2. Put the 4 screws into the designated
boreholes and tighten them with a torque
of 32 Nm.
3. When you are connecting the hose assemblies directly to the hand pump, you will have
to mount appropriate designated couplings, ttings or closing screws to the ports “P” and
“T”. (tightening torque M
= 40 Nm)
A
ATTENTION!
After the end of the assembly close all hydraulic lines by using closing screws
and/or dust protection caps, to prevent the hand pump from impurities.
16
Connection options for hydraulic equipment7.
ATTENTION!
Make sure to store all plugs, screw plugs and/or dust caps in a way that
prevents them from getting dirty or lost.
After completion of the work, seal off all lines using screw plugs and/or dust
caps to prevent contamination of the hand pump.
When connecting lines to the hand pump, we recommend positioning it
vertically so that the ports point upward. This reduces the danger of hydraulic
uid escaping.
7.1 Direct connection into the pump head
(only in operation with single-acting cylinders)
1. Remove the closing screw of the pressure
line port “P” and the sealing below.
2. Put the sealing ring onto the connection
thread of the hose / quick-disconnect
coupling (female) and screw the hose
/ quick-disconnect coupling (female)
into the pump head. Tighten the hose /
quick-disconnect coupling (female) with
a torque of 45 Nm.
ATTENTION!
If connecting directly by use of a threaded connection with compression joint,
this connection could damage the counter bore of the pump head.
If such damage is conspicuously, there could be leakages if you are using e. g.
o-rings for sealing at a later date.
Therefor you should use always threaded connection with compression joint or
you should use at a later date other appropriate sealings.
17
7.2 Quick-disconnect couplings
The hose lines are connected via quick-disconnect coupling halves (female and male) to the
hydraulic pump in such a way that they cannot be reversed.
X
Y
Before connecting the couplings, remove the dust cap, then pull back and hold the locking
sleeve of the female coupling (Position X). Push the male and female couplings together and
release the locking sleeve. Finally, turn the locking sleeve into Position Y. The connection is
then made and secured. Decoupling is done in the reverse sequence.
ATTENTION!
Always connect the return line rst and then the supply line!
NOTE:
Coupling the equipment is only possible if the hoses are depressurised.
For dust protection, the supplied dust caps must be reattached.
WARNING / CAUTION / ATTENTION!
The quick-disconnect-couplings have special functions, in part, and therefore
must not be reversed!
7.3 Screwed joint couplings
1. Remove the dust protection caps,
2. Connect the female coupling of the hose with the male coupling of the pump,
3. Screw the threaded sleeve or the female coupling onto the external thread of the coupling
male and tighten them with a torque of 40 Nm.
7.4 Direct connection into the valve block
1. Remove the closing screw from the port “B”.
2. Screw the appropriate hose line / coupling directly into the valve block and tighten it with
a torque of 45 Nm.
3. Remove the closing screw from the port “A”
4. Screw the appropriate hose line / coupling directly into the valve block and tighten it with
a torque of 45 Nm.
18
e. g. 4/3-way valve:
neutral
port “A”
B
hand pump
e. g. 2-way distribution valve:
A
port “B”
connecting thread
sealing rings
port “A”
connecting thread
return hose
supply hose
return hose
hand pump
port “B”
sealing rings
supply hose
19
7.5 Direct connection into the oil distributor block
1. Remove the closing screws form the ports „A1“, „A2“, „A3“ and/or „A4“ (according to the
number of tools you want to connect).
2. Screw the appropriate hose line / coupling directly into the distributor block and tighten
it with a torque of 45 Nm.
connecting thread
hand pump
port “B”
sealing ring
supply hose
NOTE:
The port “M” is provided for a pressure gauge, which will be tighten there with
a torque of 45Nm.
20
7.6 Direct connection into the base plate
1. Remove the closing screw from the return line port “T”.
2. Screw the appropriate hose line / coupling for the return line directly into the port “T” and
tighten it with a torque of 45 Nm.
3. Remove the closing screw from the supply line port “P”.
4. Screw the appropriate hose line / coupling for the supply line directly into the port “P” and
tighten it with a torque of 45 Nm.
port “T”
connecting thread
return hose
hand pump
NOTE:
With the LUKAS hand pump, a little idle stroke may occur when the unit is rst
used in the high pressure range.
However, this idle stroke independently stops after a device is operated
2-3 times.
ATTENTION!
The hand pump should be as close to horizontal as possible, because otherwise
the usable amount changes!
The oil ll plug must always be unscrewed one turn before starting operation of
the hand pump! This enables the aeration and bleeding of the hydraulic tank.
After the work is completed but before transport, the oil ll plug should be
retightened!
port “P”
sealing rings
supply hose
Commissioning8.
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8.1 Unlocking the pump
Unlock (1.) the shipping lock of the pump by
2.
1.
Locking pin
sliding the locking pin in the direction of the
hand wheel until it comes against the stop.
To lock (2.) the pin, move it until it comes
against the stop in the other direction. To do
this, the lever must be in the home position
(at the tank).
8.2 Bleeding the pump
1. Open the discharge valve.
2. Open the oil ll screw plug on the tank container and check the oil ll level. The oil ll
level should come up to approximately 1-2 cm below the top edge of the oil reservoir.
3. In this state, work the pump handle several times.
Hand wheel
NOTE:
To bleed connected equipment, make sure that the highest point of the connected
devices are below the level of the pump.
Before operating the pump, you should also open the oil ll screw plug. Only in this
way can any trapped air escape the hydraulic system when the pump is operated.
You should operate the connected equipment several times without load.
When you do this, also follow the separate operating instructions of the connected
devices.
22
Operation9.
9.1 Notes for a secure operation of the hand pump
WARNING / CAUTION!
Under certain circumstances, the pump handle can "kick back". Make sure that
your body remains to the side of the pump.
ATTENTION!
Never attach an extension to the pump handle that does not belong to the
device. These extensions usually cause the pump to become unstable during
operation.
NOTE:
In order to limit the required force in high pressure operation, we recommended
using short strokes with the pump handle. The greatest pumping effect is produced
in the last 5 degrees of the stroke.
Should you use a female quick-disconnect-coupling as the port, quick stop may be
triggered if the discharge valve is opened too quickly (turning counter-clockwise),
i.e. the check valve incorporated in the male quick-disconnect coupling blocks
the return ow of oil while the connection between pump and female quick-
disconnect coupling is depressurised. This is provided as a safety function in case
the connection between the female quick-disconnect-coupling and pump starts
to leak and the pressure drops abruptly. In this case, the "quick stop" prevents,
for example, an abrupt drop in the load when an hydraulic cylinder is operated.
In order to release the quick stop again, more pressure must rst be supplied to
the device. Then, the pressure can be decreased again by slowly opening the
discharge valve.
9.2 Hand pump (basic pump)
1. Close discharge valve on the hand pump completely (rotate clockwise).
2. Connect the single-acting tool onto the pressure port “P”.
3. Move the locking pin into the operating position.
4. Supply the device with hydraulic uid or pressurise by operating the pump lever (up and
down movements).
5. To reduce the pressure of the device, slowly open the discharge valve of the hand pump
(turn counter-clockwise). In this way, you can meter the pressure reduction precisely.
Make sure, that the discharge valve is opened completely and the tool is in basic position
before you disconnect the tool.
9.3 Hand pump with base plate
1. Close discharge valve on the hand pump completely (rotate clockwise).
2. Connect the return line of the device at the return port “T” and then the high pressure line
at the pressure port “P”.
3. Move the locking pin into the operating position.
4. Supply the device with hydraulic uid or pressurise by operating the pump lever (up and
down movements).
23
5. To reduce the pressure of the device, slowly open the discharge valve of the hand pump
(turn counter-clockwise). In this way, you can meter the pressure reduction precisely.
Make sure, that the discharge valve is opened completely and the tool is in basic position
before you disconnect the tool.
9.4 Hand pump with 4/3-way valve
1. Close discharge valve on the hand pump completely (rotate clockwise).
2. Connect the lines of the tool or the tools to the ports “A” and ”B”.
3. Move the locking pin into the operating position.
4. Choose with the lever, which line you will pressurize.
“A” means line “A”.
The middle position is the neutral position, this means none of the connected lines will be
pressurized when you are pumping.
“B” means line “B”.
5. Supply the device with hydraulic uid or pressurise by operating the pump lever (up and
down movements).
6. To reduce the pressure of the device, slowly open the discharge valve of the hand pump
(turn counter-clockwise). In this way, you can meter the pressure reduction precisely.
Make sure, that the discharge valve is opened completely and the tool is in basic position
before you disconnect the tool.
NOTE:
A pressure decrease is also possible by switching the lever into the opposite
moving direction. In this case the pressure decrease could not be dosed, it will
carried out very abrupt.
9.5 Hand pump with 2-way distribution valve
1. Close discharge valve on the hand pump completely (rotate clockwise).
2. Connect the lines of the tool or the tools to the ports “A” and ”B”.
3. Move the locking pin into the operating position.
4. Open the hand wheel for the line(s) which you would like to pressurize.
“A” means line “A”.
“B” means line “B”.
According to the position of the valve hand wheels, the supply with hydraulic uid could
be dosed.
5. Supply the device with hydraulic uid or pressurise by operating the pump lever (up and
down movements).
6. To reduce the pressure of the device, slowly open the discharge valve of the hand pump
(turn counter-clockwise). In this way, you can meter the pressure reduction precisely.
Make sure, that the discharge valve is opened completely and the tool is in basic position
before you disconnect the tool.
24
9.6 Hand pump with oil distributor and pressure gauge
1. Close discharge valve on the hand pump completely (rotate clockwise).
2. Connect the supply lines of the tool(s) with the pressure port.
3. Move the locking pin into the operating position.
4. Supply the device with hydraulic uid or pressurise by operating the pump lever (up and
down movements).
5. To reduce the pressure of the device, slowly open the discharge valve of the hand pump
(turn counter-clockwise). In this way, you can meter the pressure reduction precisely.
Make sure, that the discharge valve is opened completely and the tool is in basic position
before you disconnect the tool.
9.7 Shutdown / storage
To shut down or store the pump, seal all hydraulic connections with the associated screw
plugs or dust caps.
After sealing the hydraulic ports, open the drain screw (not up to the stop!) to depressurise
the pump.
Then carefully clean the external dirt off of the hand pump.
In addition, with a longer storage time, the outside of the device should be cleaned and all
visible mechanical moving parts need to be oiled.
ATTENTION!
After completion of the work but before transport, check to make sure the oil ll
screw plug is screwed in tightly!
Make sure the pump is not stored in a damp environment.
NOTE:
If you store the hand pump with mounted hoses, you will have also to observance
the separate manual of the appropriate hoses.
Transport10.
The pump lever is used as a carrying handle! Special pumps may be the exception in this
case. These pumps are custom-assembled for each customer; therefore, there may be a
different transport device or none! In these cases, please refer to your authorised dealers
or LUKAS directly. The lever must be locked for transport, as described in the chapter
"Unlocking the pump".
Maintenance and repair11.
11.1 Basic requirements
Service work may only be performed by the device manufacturer or by personnel trained by
the device manufacturer and authorised LUKAS dealers.
All components must be replaced with original LUKAS spare parts, which are listed in the
spare parts list, because in this context even required special tools, assembly instructions,
safety aspects and/or checks absolutely must be taken into consideration.
During the assembly work, pay particular attention to the cleanliness of all components
because dirt can damage the equipment!
25
WARNING / CAUTION / ATTENTION!
To perform maintenance and repairs, personal safety equipment appropriate for
the work is an absolute requirement. (incl. shields).
Assembly and repair work on the pump may only be performed if the entire
hydraulic system is depressurised!
Couplings should not be repaired; they should be replaced with original LUKAS
parts!
NOTE:
Always send the warranty tab back to LUKAS hydraulics GmbH.
You should always contact LUKAS or an authorised dealer before using outside
couplings.
Do not perform any repairs without the corresponding LUKAS spare parts list,
because necessary tightening torques for screw connections and/or in some
cases also important additional information are listed there.
ATTENTION!
Clean the device before checking for dirt!
Do not use any aggressive agents for cleaning; it could cause damage to the
equipment.
Because LUKAS devices are designed for the highest performance, only
components may be replaced that are listed in the spare parts lists of the
corresponding device.
Additional components of the equipment may only be replaced if:
- You have participated in a corresponding LUKAS service training course.
- You have the express permission of LUKAS customer service (by request,
check on the grant of permission. A check is necessary in each individual
case).
The equipment is subject to very high mechanical stresses. Therefore, a visual inspection
needs to be made after each use, at least once per month (if continually used, once per
week).
In this way, early signs of wear are recognisable so that damage to the device can be
avoided by prompt replacement of these worn parts. Also check regularly to make sure that
all attachment screws are tightened (heed any applicable tightening torque specications).
At least once a year (if continually used once every half year) or if there is a doubt about
the safety or reliability, a functional check should be also performed (for this purpose, also
heed the corresponding applicable national and international specications related to the
maintenance intervals of the devices).
26
11.2 Maintenance
Before performing maintenance work, clean the hand pump thoroughly.
After performing the maintenance work, you should carefully coat all metallic parts with oil
to prevent any corrosion.
Checks (Maintenance measures):
Perform a visual inspection of the hand pump at least once per month; in the case of
continuous use, once a week.
Visual inspection
Hand pump
• are all hydraulic connections still tightened,
• generally sealed, no leaks present (oil "sweat" has no effect on the operation),
• is damage to pump housings, valve blocks or attachment parts recognisable, especially
on the moving parts such as the piston rods,
• are all uid levels within the prescribed tolerances,
• are all non-moving parts rmly attached,
• is there no corrosion,
• freedom of movement for the pump lever and the hand wheels
(check in the depressurised state),
• the couplings are easy to couple (if attached),
• are dust caps in place,
• are identication plate, all control decals, instruction decals, labels and warnings present
and legible.
Perform an operational check of the hand pump at least once per year; in the case of
continuous use, once every half year.
Operational check
• no suspicious noises,
• tests at maximum load.
Execution:
Place the hand pump on a solid base to operate. Then, connect a test manometer to the
supply hose line. Release the pump lever lock and close the discharge valve. Then, the
pressurisation to operating pressure corresponding to the specication on the identication
plate occurs.
NOTE:
In this test, an idle time of approximately 2 minutes needs to be observed and
the hand pump needs to be reloaded to operating pressure.
The resulting max. operating pressure must not drop by more than 5% after
10 seconds.
A test pressure gauge is available from the LUKAS line of accessories.
27
11.3 Hydraulicuidchangeoraddinghydraulicuid
The hydraulic uid should be changed if dirty at least once a year. When the hand pump is
operated in an especially dusty environment, we recommend changing the uid at least once
every half year.
ATTENTION!
Add hydraulic uid only if the hand pump is disconnected from the lines or the
equipment operated with the pump is hydraulically depressurised. Otherwise,
after lling the entire hydraulic system could contain more hydraulic uid than
the tank can hold.
Procedure:
1. Open the bleed/ll cap on the tank.
2. Add hydraulic uid until the uid level comes up to 1-2 cm below the top edge of the oil
tank.
3. Bleed the hand pump as described in the chapter "bleeding the pump".
4. Check the uid level again and close the tank again at the correct uid level with the
vent/ll cap on the tank. Should the tank no longer be sufciently full after bleeding, start
the ll procedure again at item 2.
NOTE:
Should the uid level in the tank still not be reached after repeated relling (during
maintenance), we recommend searching for leaks in the hydraulic system.
11.4 Care
If possible, do not store the hand pump in a damp or extremely dusty environment in order
to ensure a long service life. If this is unavoidable, you should perform more frequent
maintenance and/or shield the pump from these effects if possible.
Regularly coat all metal parts with oil to prevent any corrosion.
28
11.5 Repair (hand pump)
ATTENTION!
Because LUKAS devices are designed for the highest performance, only
components may be replaced that are listed in the spare parts lists of the
corresponding device and whose replacement is described here.
Additional components of the equipment may only be replaced if:
- You have participated in a corresponding LUKAS service training course.
- You have the express permission of LUKAS customer service (by request,
check on the grant of permission. A check is necessary in each
individual case).
NOTE:
The article description and the reference number of all listed position numbers
could be found in the spare parts lists.
11.5.1 Lever replacement
The lever must be replaced if external damage is present that represents a danger for user
and device upon further use.
Procedure:
1. Drive out dowel pin (pos. 1.2).
1.2
2. Remove lever (pos. 1.1) and replace with a new one.
3. Reinsert dowel pin (pos. 1.2).
1.1
11.5.2 Changing the piston or the piston sealings
The piston sealings must be replaced if there is a permanently leakage on the piston / wiper.
If you see damages on the piston itself, when changing the piston sealings, the piston has
also to be replaced.
ATTENTION!
The piston itself may not be dismantled, it has to be replaced by a new one.
Additional repairs on the piston itself may only be made, when:
- You have participated in a corresponding LUKAS service training course.
- You have the express permission of LUKAS customer service (by
request, check on the grant of permission. A check is necessary in each
individual case).
29
Procedure:
1. Disassemble the retaining rings (Pos. 3.3) and extricate the bolt (Pos. 3.2).
3.23.3 3.3
lever unit
3. Demount the lever unit.
4. Extricate the piston unit (Pos. 6.1) and after that remove the wiper (Pos. 6.4), backup
ring (Pos. 6.3) and the o-ring (Pos. 6.2).
6.1
6.4
5. The assembly is done in reverse order. Replace all damaged parts with new ones.
ATTENTION!
When mounting the wiper, the backup ring and the o-ring, take care that they
are assembled completely in the appropriate grooves and in the right order.
6.3
6.2
30
11.5.3 Changing the hand relief valve
The hand relief valve must be replaced if there is a permanently leakage on the relief valve,
if you see external damages or it does not working.
ATTENTION!
The hand relief valve itself may only be dismantled as far as described here.
Additional repars on the relief valve itself may only be made, when:
- You have participated in a corresponding LUKAS service training course.
- You have the express permission of LUKAS customer service (by
request, check on the grant of permission. A check is necessary in each
individual case).
Procedure:
1. Demount the set screws (Pos. 8.3) and remove the hand wheel (Pos. 8.2).
8.3
8.2
8.3
2. Untighten the bedstop screw (Pos. 8.4) and remove the hand relief valve (Pos. 8.1) and
the ball (Pos. 8.5).
bedstop area
8.4
3. The assembly is done in reverse order. Replace all damaged parts with new ones.
NOTE:
The assembling of the bedstop screw and the hand relief valve has to be
carried out synchronous (like shown above), because the bedstop screw is
longer than the bedstop area of the hand relief valve.
8.1
8.5
31
11.5.4 Removing tank for cleaning, replacing the tank or the seals
The tank should be cleaned at least once per year in order to remove the accumulated dirt.
The tank must be replaced if there is any external damage that impairs the safety of
the device.
The tank seals must be replaced if there are any leaks at the junction points of the tank.
Procedure:
9.1
1. Emptying the reservoir by demounting the
plug screw (Pos. 9.1) and the sealing ring
(Pos. 9.2) below and after that emptying
the reservoir.
ATTENTION!
Properly dispose of the removed
hydraulic uid and all damaged components!
2. Demount nut (Pos. 16.1) and sealing ring (Pos. 15.2) below.
3. Remove base plate and sealing (Pos. 15.1).
4. Remove reservoir and sealing (Pos. 15.1).
9.2
16.1 15.2
base plate
15.1
15.1
reservoir
32
Hand pumps with a 1,8 l reservoir has to be disassembled like shown below:
nut (Pos. 16.1), sealing ring (Pos. 15.2), base plate, at seal (Pos. 17.1), reservoir,
connecting plate and sealing (Pos. 15.1).
16.1 15.2
Hand pumps with a 3,8 l reservoir has to be disassembled like shown below:
nut (Pos. 16.1), sealing ring (Pos. 15.2), base plate, at seal (Pos. 18.1), reservoir,
connecting plate and sealing (Pos. 15.1).
16.1 15.2 18.1 18.1 15.1
5. The assembly is done in reverse order. Replace all damaged parts with new ones.
The tightening torque of the nut is 40 Nm.
17.1
base plate
base plate
17.1
reservoir
reservoir connecting plate
connecting plate
15.1
33
11.5.5 Replacingpressurelimitingvalvesandlter
The pressure limiting valves have to be replaced, when they are damaged. The lter has
to be replaced, when the ow of the hydraulic uid is not possible or it is only possible with
difculties.
ATTENTION!
Pressure limiting valves must not be disassembled or readjusted; they have to
be replaced by new ones with appropriate settings!
Procedure:
1. Disassemble reservoir, like described in chapter “Removing tank for cleaning, replacing
the tank or the seals”.
2. Demount the pressure limiting valve HP (Pos. 11.1/12.1), the pressure limiting valve LP
(Pos. 13.1) and the sealing rings (Pos. 11.2) below. When replacing the lter, demount
lter (Pos. 14).
11.1/12.1
11.2
high pressure port
13.1
3. The assembly is done in reverse order. Replace all damaged parts with new ones. The
tightening torque of the pressure limiting valves are 50 Nm.
11.2
14
low pressure port
34
11.6 Repair (accessories)
ATTENTION!
Because LUKAS devices are designed for the highest performance, only
components may be replaced that are listed in the spare parts lists of the
corresponding device and whose replacement is described here.
Additional components of the equipment may only be replaced if:
- You have participated in a corresponding LUKAS service training course.
- You have the express permission of LUKAS customer service (by request,
check on the grant of permission. A check is necessary in each
individual case).
11.6.1 4/3-way valve (lever replacement)
The lever parts must be replaced, when you see external damages or they do not work
correct.
Procedure (Demount only the lever rod and the lever knob):
1. Dismantle the lever knob (Pos. 2).
2. Dismantle the lever rod (Pos. 1).
(If needed, use tongs)
2
1
3. The assembly is done in reverse order. Replace all damaged parts with new ones.
35
11.6.2 4/3-way valve (locating disk and needle bearing replacement)
The lever parts must be replaced, when you see external damages or they do not work
correct.
Procedure (Demount of lever, locating disk and needle bearing):
1. Untighten the screws (Pos. 4) at
the cover plate and remove the
coverplate.
cover plate
2
4
1
2. Remove the needle bearing (Pos. 3.2)
and the lever. After that disassemble
balls
3.1
3. The assembly is done in reverse order. Replace all damaged parts with new ones.
3.2
infolowing parts:
lever knob (Pos. 2), lever rod (Pos.
1), locating disk (Pos. 3.1) and needle
bearing (Pos. 3.2).
ATTENTION!
Below of the locating knob
are balls inserted in the
valve body.
This balls could fall out while
demounting.
Therefore it is important to
pay attention to these balls,
because otherwise the
functionality could not be
guaranteed.
36
11.7 Repair (couplings and decals)
11.7.1 Quick-disconnect-couplings (if mounted)
The quick-disconnect-couplings should be replaced if:
- exterior damage is present,
- the lock does not function,
- in the coupled and/or decoupled state, hydraulic uid continuously escapes.
Procedure:
1. Unscrew and remove coupling.
2. Screw in new screw-on male coupling and tighten with a torque of MA = 35 Nm.
WARNING / CAUTION / ATTENTION!
Couplings should not be repaired; they should be replaced with original LUKAS
parts!
ATTENTION!
The return port must always be equipped with a female quick-disconnect-coupling.
The supply port should instead be equipped with a male quick-disconnect-coupling.
11.7.2 Screwed joint couplings (if mounted)
The screwed joint couplings should be replaced if:
- exterior damage is present,
- in the coupled and/or decoupled state, hydraulic uid continuously escapes.
Procedure:
1. Unscrew and remove coupling.
2. Screw in new screw-on male coupling and tighten with a torque of MA = 40 Nm.
11.7.3 Decals
All damaged and/or illegible decals (safety instructions, identication plate, etc.)
must be replaced.
Procedure:
1. Remove damaged and/or illegible decals.
2. Clean surfaces with acetone or industrial alcohol.
3. Adhere new decals.
Make sure to adhere the decals in the correct positions. If this is no longer known, you should
consult your authorised LUKAS dealer or contact LUKAS directly.
37
Problem Cause Remedy
Connected device
does not move, moves
only slowly or moves
intermittently.
Connected device moves,
but does not hold pressure
or does not render the
specied performance.
Troubleshooting12.
Fluid level in the hydraulic
tank too low
Hand relief valve open Close hand relief valve.
Hose line not properly
connected or damaged
Load on the device
too high
Air in the hydraulic system Bleed system as described
Valve block defective Replace valve block
Defect on the device Heed the specications
Hose line not properly
connected or damaged
Leaking seal Locate the leak and have
Valve block defective Replace valve block
Internal leakage of the
pump
Add hydraulic uid up to
max. ll level.
Check connection of the
hose line and reconnect it
if necessary.
Use a different device.
in the chapter “Bleeding
the pump”.
Repair by an authorised
dealer or by LUKAS itself
of the separate operating
instructions of the
device.
Check connection of the
hose line and reconnect it
if necessary.
the hand pump serviced by
an authorised dealer, by
personnel specially trained
by LUKAS or by LUKAS
directly.
Repair by an authorised
dealer or by LUKAS itself
Have the hand pump
serviced by an authorised
dealer, by personnel
specially trained by LUKAS
or by LUKAS directly.
38
Problem Cause Remedy
Device does not move
back into the starting
position, moves
incompletely back toward
the starting position or
moves more slowly into
the starting position than
normal.
Connected device not
reaching its limit position
Connected rescue device
does not achieve its
power-related performance
data
Fluid leaks on the
hydraulic uid reservoir
(especially at the rell tap)
Hydraulic uid with milky
cloudiness
In the case of a quickdisconnect coupling
system: Hose lines cannot
be coupled
Hand relief valve closed Open hand relief valve.
Fluid level in the hydraulic
tank too high
Loose hydraulic coupling Check all couplings and
Enclosed air in the system Bleed pump as described
Line length too long Use shorter lines.
Valve block defective Replace valve block
Defect on the device Heed the specications
Fluid level in the hydraulic
tank too low
Usable hydraulic uid
quantity of the pump is
insufcient
Max. permissible operating
pressure of the pump is
not reached
Due to return ow of the
hydraulic uid from the
device, the maximum ll
quantity of the reservoir is
exceeded
Seals defective Replace seal.
Water or condensation
water in the system
System is under pressure Open discharge valve and
Coupling defective Coupling should be
Reduce hydraulic uid
down to max. ll level.
retighten them.
in the chapter “Bleeding
the pump”.
Use hydraulic uid with
a different, more suitable
viscosity.
Repair by an authorised
dealer or by LUKAS itself
of the separate operating
instructions of the
device.
Add hydraulic uid up to
max. ll level.
Attention: move the
device back into the
base position before
adding uid!
Use a different device with
a usable quantity below
the maximum usable
quantity of the pump.
Replace pressure
control valve or have
it recalibrated by an
authorised dealer or
directly by LUKAS.
Reduce hydraulic uid
down to max. ll level.
Perform hydraulic uid
change immediately.
bleed device.
replaced immediately.
39
Problem Cause Remedy
In the case of a quickdisconnect coupling
system: Leakage on the
male coupling
In the case of a quickdisconnect coupling
system: Leakage at the
female coupling
Hydraulic uid escaping
from the hoses or at the
joints
Damage on the surface of
the hydraulic hoses
If the defects cannot be remedied, notify an authorised LUKAS dealer or contact LUKAS
Customer Service directly!
The address of LUKAS customer service is:
Safety valve has
responded (in the
decoupled state)
Male coupling defective Male coupling should be
Female coupling defective Female coupling should be
Leakage, possible damage Replace hoses.
Mechanical damage or
contact with aggressive
media
After depressurization, no
further leakage occurs.
replaced immediately.
replaced immediately.
Replace hoses.
LUKAS
Weinstraße 39, D-91058 Erlangen
Postfach 2560, D-91013 Erlangen
Phone: (+49) 09131 / 698 - 348
Fax.: (+49) 09131 / 698 - 353
Hydraulik GmbH
40
Technical data13.
Because all values are subject to tolerances, there cannot be any differences between the
data of your device and the data of the following tables!
13.1 Data of the hand pumps
13.1.1 Pump labelling
LH 2 / 1.8 - 50
Model series
NOTE:
The automatic pressure switch from low pressure to high pressure occurs at
2 MPa (= 20 bar)
13.1.2 Dimensions, weight, usable quantity and ll quantity
NOTE:
The dimensions of the hand pumps are exclusively dependent on the size of the
hydraulic uid tank. The types of hand pumps are not outwardly distinguishable
from the outside at the pump head.
Reservoir
size
0,2 [l]
0,5 [l]
0,9 [l]
1,8 [l]
3,8 [l]
dimensions
l x w x h
574 x 97 x 141 [mm]
22.6 x 3.8 x 5.6 [in.]
362 x 97 x 141 [mm]
14.3 x 3.8 x 5.6 [in.]
574 x 97 x 141 [mm]
22.6 x 3.8 x 5.6 [in.]
574 x 97 x 141 [mm]
22.6 x 3.8 x 5.6 [in.]
590 x 190 x 141 [mm]
23.2 x 7.5 x 5.6 [in.]
Tank size max. operating
pressure in MPa
(1 MPa = 10 bar)
41
13.1.3 Weight, usable quantities and ll quantities
NOTE:
The weights, usable quantities and ll quantities of the hand pumps are
exclusively dependent on the size of the hydraulic uid tank.
Reservoir size
(useable quantity)
0,2 [l]
0,5 [l]
0,9 [l]
1,8 [l]
3,8 [l]
13.1.4 Flow rates
NOTE:
The ow output per piston stroke of the hand pumps depend exclusively on the
model series.
Type series
LH 1
LH 2
weight min. needed
(incl. max. hydraulic uid
owrateperpropiston
lling)
2,3 [kg] 0,24 [l]
5.1 [lbs.] 0.06 [gal.-US]
4,0 [kg] 0,69 [l]
8.8 [lbs.] 0.18 [gal.-US]
5,7 [kg] 1,23 [l]
12.6 [lbs.] 0.32 [gal.-US]
6,5 [kg] 2,38 [l]
14.3 [lbs.] 0.63 [gal.-US]
10,8 [kg] 4,61 [l]
22.8 [lbs.] 1.22 [gal.-US]
owrateperpropiston
stroke (low pressure)
6,0 [cm³] 0,8 [cm³]
0.37 [Cubic in.] 0.05 [Cubic in.]
17 [cm³] 1,7 [cm³]
0.85 [Cubic in.] 0.10 [Cubic in.]
llquantity
stroke (high pressure)
42
13.2 Hydraulicuidrecommendation
Mineral oil DIN ISO 6743-4 for LUKAS hydraulic equipment and others
Oil temperature range Oil code Viscosity rating Remarks
A -24 .... +30°C HL 5 VG 5
B -18 .... +50°C HM 10 VG 10
C -8 .... +75°C HM 22 VG 22
D +5 .... +80°C HM 32 VG 32
E -8 .... +70°C HF-E15 VG 15 Bio-oil
Oil temperature range Oil code Viscosity rating Remarks
A -11.2 .... +86°F HL 5 VG 5
B -0.4 .... +122°F HM 10 VG 10
C +17.6 .... +167°F HM 22 VG 22
D +41.0 .... +176°F HM 32 VG 32
E +17.6 .... +158°F HF-E15 VG 15 Bio-oil
recommended viscosity range: 10...200 mm²/s (10…200 cSt.)
Supplied with HM 10 DIN ISO 6743-4.
13.3 Operating and storage temperature ranges
Operating temperature [°C] -20 … +55
Ambient temperature (device in operation) [°C] -25 … +45
Storage temperature (device not in operation) [°C] -30 … +60
Operating temperature [°F] -4 … +131
Ambient temperature (device in operation) [°F] -13 … +113
Storage temperature (device not in operation) [°F] -22 … +140
43
Notes14.
Please dispose all packaging materials and
dismantled parts properly
LUKAS
Weinstraße 39, D-91058 Erlangen
Postfach 2560, D-91013 Erlangen
Tel.: (+49) 0 91 31 / 698 - 0
Fax.: (+49) 0 91 31 / 698 - 394
e-mail: lukas.info@idexcorp.com
Hydraulik GmbH
Made in GERMANY
© Copyright 2009 LUKAS Hydraulik GmbHLH1_LH2_WZH_BA_GB_841292430_0409.indd
subject to revision
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