Wren KLW4120 Manuel utilisateur
1
OPERATION AND MAINTENANCE MANUAL
FOR KLW4120 Automatic Electrical Pump
It is operating manual of KLW4120 Automatic Electrical Pump, please
read carefully follow instructions、warnings and cautions before using the
tools.
WREN Hydraulic
Safety Guide
The hydraulic torque wrench pump's safe usage requires correct operation and
regular inspect. And the user is requested to follow always and carefully .
▲precaution to avoid direct loss in economic or property.
▲warning to avoid personal injury.
Please follow herein before!
When using, if something abnormal happens, please shut off the power
immediately, and then consult WREN or WREN`s agent.
2
1.When using, do not permit any person stand at the oil output in order to avoid personal injury and
equipment damage. Please put the pump far away from the fire.
2.Make sure that the hose and quick coupler be connected before building up the pressure in order
to avoid hydraulic fluid spurting out to cause personal injury.
3.The maximum operating pressure of this pump is 700Bar,WREN has set up the
pressure to 700Bar before selling this pump. Please do not adjust to a pressure higher than
the maximum pressure which WREN has not set.
4.If this pump is used for operating other equipments, make sure the maximum operating pressure
of the equipments will be less than 700Bar. Please adjust the pressure to which the equipment
need, or else the equipment would be damaged.
5.Make sure the power of the pump is shut off before repairing it.
6.Please shut off the switch before starting power; if the switch is on, the pressure may increase.
7.Make sure the equipment be connected with ground to avoid electric shock.
8.Please do not change any part of the pump; if it must be changed, please inform WREN or Wren's
agent for help. Without allowance of WREN or its agent, any refit of it will be out of our warranty
range.
9.Please do not fill the pump reservoir with too much oil, otherwise, the pressure of the reservoir will
increase and the oil will spill over, so the reservoir will be broken and the environment will be
polluted.
10.Automatic operation button is pressed, the automatic cycle start button switch bounce, automatic
program stop. Under a state of emergency, you must first cut off the power supply of a motor.
11.Make sure the quick coupler is tightened; if the quick coupler is not tightened enough, the
equipment will not work normally; if it is a synchronic system, the problem may cause one or several
pieces of equipment out of order and the quick coupler may be broken and it may cause personal
injury or equipment damage.
12.Please stand away from the position where the hydraulic oil may be spurt out; hydraulic oil may
penetrate your hand and hurt you.
13.If the hydraulic oil splashed in your eyes, please immediately wash your eyes about 15 minutes
with clean water, then you must go to hospital for help right now.
14.Electrical box with flashing lights. If the bright lights, the circuit fault. Usually the indicator does
not work. If there is light to timely repair
15.The wrench and power pump are connected by a 700 Bar operating pressure, twin-line hose
assembly. Each end of the hose will have one male and one female connector to assure proper
interconnection between pump and wrench.
16.Please do not touch the pressurized hose; if the hydraulic oil splashed out, it will cause serious
injury.
1.Only WREN hydraudic special oil available.
2.Do not use pressure regulate valve as relief valve.
3.The used hydraulic oil should be put away according to the antipollution ordinance.
PRECAUTION
Motor Switch
(Control the Motor)
Button for manual operation
(Control by hand)
Button for automatic operation
(Press down the button
till operation finished)
3
1.This pump is used for hydraulic torque wrench and fitted in integrated way, it is an independent
hydraulic unit that mainly consists of pump, control valve, oil reservoir, motor, meter, control-line
fitting, it has the peculiarity of small volume, light weight, simple composition, convenient operation,
high working pressure. The pump can supply oil with one high and one low oil outlet at the same
time, which could make a large quantity of oil outputting. On high pressure, the low pressure pump
will automatically let oil return through the release flow valve, which can reduce power consumption,
and the pressure of the outlet can be arbitrarily adjusted from 70 to 700 bar.
2.Hydraulic oil for this pump:46# or 32# anti-wear hydraulic oil.
3.Environmental temperature for using this pump:-10~80℃
4.Please use Wren's high pressure hose, high pressure coupler, and so on. The maximum operation
pressure of high pressure hose for this pump is 1000Bar; please choose suitable system for it.
5.If you need to use attached hydraulic product for pump, please contact WREN's engineers.
6.Please do not use this pump around the fire.
7.Please do not adjust the pressure valve arbitrarily to avoid personal injury or equipment damage
due to high pressure.
8.Please confirm that the voltage for this pump is the same as the voltage of using on the spot.
9.You'd better use the pump indoors, please protect the pump from rain if it is used outdoors.
DESCRIPTION
1. KLW4120 is three-stage pump. Pressure relief valve is asslembled in the high pressure port .the
rated pressure in the low pressure port is 5-7Mpg,And the flow is 0.8L/M under 700Bar.
2. Max operating pressure:700Bar
3. Flow:three-stage,can simultaneity use 2 torque wrenches
4. Motor:220V/50Hz
5. Environmental temperature:-10~80°C
6. Rerervoir dimension:448×428×281mm
7. Weight（No oil）:28Kg
8. Hydraulic oil:ISO VG 46# or 32#
1.When operating, do not permit anyone stand at the oil output,The oil output must connect other
components when adjusting the pressure.
2.When using, do not overpass the max operating pressure.
3.If need to check motor, please shut off the pump.
4. When working, the oil back to oil reservoir may add the pressure. If open the cover plate,
unnecessary injury and damage will happen.
5.Proihbit to operate without oil
6.Keep the clean of the pump,clean especially the oil inlet, quick couplers.
7.Suggestion: in the condition of not using the pump always, please remember to replace the
hydraulic oil
CHARACTERISTIC
WARNING!!!
4
1. The inspection before operating
(1).Please shut off the pump and inspect whether the position of the power connection is loose or
not. If it is loose, please tighten it.
(2).Please inspect whether the hydraulic oil in the oil reservoir is enough or not, if it is not enough,
please fill the oil in time.
(3).The pump is still working when the direction of the air valve is changed, please build up pressure
and inspect whether the whole equipment is normal or not.
(4).Please inspect whether the house and other equipments are leaky or not, if this happened,
please inspect to find the reason and repair it or replace it.
2.The inspection in operation
When inspecting the following items, if there is abnormal situation, please shut off the pump and
repair it.
(1)Please inspect whether there are abnormal condition or not in the course of raising the pressure.
(2)Please inspect whether the houses and other equipments are leaky or not.
(3)Please inspect whether there is some abnormal noise, rocking and smell or not during the
operation of the motor.
(4)Please inspect whether the temperature of hydraulic oil is too high or not.
3.The inspection after finishing the operation of the pump.
(1)Making sure the pump must be turn down.
(2)Please inspect whether there are leaky or abnormal condition or not. If there is abnormal
situation,please inspect to find the reason and repair it
(3)Please clean it after using the pump.
4.Refer to changing the hydraulic oil
The oil should be replaced once a year principally. If there are following abnormal conditions, please
replace the oil immediately.
(1)If dust mixes with the oil, please replace the oil.
(2)If there is abnormal smell, please replace the oil.
(3)If the water mixes with the oil, the colour of the oil has been changed into milkiness, please
replace the oil.
(4)If the colour of the oil has been changed into black-brown, please replace the oil.
5.The way replacing the hydraulic oil
(1)Please loosen the oil filler port of oil reservoir.
(2)Please take down the screw on the flank of the oil reservoir, let hydraulic oil out.
(3)Please clean the inner and filter of the oil reservoir.
(4)Please install the screw and fill the oil reservoir with the hydraulic oil.
WARNING: If the oil splashes into your eyes, please wash with clean water for at least 15 minutes,
and Then see doctor immediately. If the oil splashes to your skin, please wash it with clean water
and soap.
WARNING: Waste hydraulic oil bellows to industrial waste, it should be dealt with by special
companies.
MAINTENANCE AND INSPECTION
5
FIG2
1.The first tank filled with standard of clean hydraulic oil, hydraulic oil should be used GB32# ( winter
) or 46# ( summer ), when filling the hydraulic oil to hydraulic pump on oil tank oil window shows the
warning line, immediately stop charging, while tightening the fuel tank at the top of the gas hole
cover.
2.Cxamination and connect the oil inlet and the oil return rubber hose. Check the tubing and pump
body, between the tubing and work between mechanical joint is intact, tightly.
3.Check and connect the main power line, check the power lines and various electrical components,
is in good condition. Such as: pressure gauges, electrical, automation of electrical control box, to
prevent damage in transit.
4.The power switch, press the switch of the motor, so that the whole pumping station in a work
situation automatic running 2-3minutes. At this time, pumping station is the internal internal air, at
the same time please watch whether the motor running, the pump body has no abnormal noise or
vibration.
5.After the above preparations, such as was not found to have any abnormal phenomenon is the
basic work of pumping station is normal. The handle is manually operated button press, repeated
several times in the air discharged high pressure hose.
6.press the manual button time to observe the pressure gauge pointer is upward, otherwise the
pressure pump station work is not normal, please check the troubleshooting.
7.Press the manual button, regulating the regulator valve to the set pressure.
OPERATION INSTRUCTIONS
TROUBLE SHOOTING GUIDE OF HYDRAULIC PUMP
T Ha ndle
Turn up the preasure
Locking Rin g
The pump can't be started
The voltage isn't suitable
Checked the s witch and
distribution
box and so on, and
connec t the
power.
Confirming whether the voltage
is suitable for the pump's need
The power hasn't be connected
The system has no pressure
The quick coupler hasn't be
connected to the correct position Take down and reinstall it
No oil in the oil reserv oir Fill in oil
Not enough oil in the oil reservoir Fill in oil
If the system has a throttle and
hand single-direction valve, please
check if the valve are open
Open the throttle and hand
single-direction valve, and
make sure the system is a circle
After reinstalling the quick
coupler,the system has no
pressure
The quick coupler can't be connected
to the correct position, which causes
no pressure in the system
Take down the quick coupler, check
if the boll is elastic with a rod, if it can't
move, please knock it with a hammer to
eliminate the mist hydraulic oil
Leak age in the quic k coupler The o ring and escape have worn out Replace the quick coupler
6
The press ure can't reach to
the set press ure
The relief valve is adjusted
too low
Check with the gauge, and adjust the
relief valve to the system set pressure
Oil is mixed with water Change oil
Not enough oil in the reservoir Fill in oil
Repeat operating the system with no
load for several times to eliminate the air
Suc k in air to the system
The throttle and hand single-direction
valve haven't been tightened Locking v alve
The throttle and hand single-direction
valve haven't been adjusted to the
correct position
Adjust to the correct position
The throttle and hand single-direction
valve have broken Replace the valve
There is foreign matter in
the oil
Wash the pump valve and
change clean oil
When using under static pressure,
the pressure reduces slowly
The seal is out of control, please
check all the seal Replace the seal
7
Appendix
EXTERNAL DIMENSION AND DESCRIPT ION OF PARTS
Item
1
2
3
4
5
6
7
Item
8
9
10
11
12
13
14
Description Description
Oil Reservoir
Gauge
Frame For Protecting
Regulating Valve
Valve Assembly
Oil Lever Measure
Oil Releasing Port
Electrical Control System
Motor
Oil Filling Port
Solenoid Valve
Cooler
Tank Cover
Coupler
PUMP BODY ASSEMBLY
8
Description Quantity
Item
1
2
3
4
5
6
7
8
8.1
8.2
8.3
8.4
8.5
9
9.1
9.2
9.3
9.4
9.5
10
11
12
13
13.1
13.2
13.3
13.4
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Seal Gasket
Bearing
Screw
Connecting Axis
Flange
Metal Sleeve
Pump Body
Relief Valve(Low)
Valve Body
O-Ring
Retaining Ring
O-Ring
O-Ring
Relief Valve(Middle)
Valve Body
O-Ring
Retaining Ring
O-Ring
O-Ring
Filter Fixer
Screw
Safety Valve
Check Valve
Valve Body
Retaining Ring
O-Ring
O-Ring
Screw Plug
Bearing
Metal Retaining Ring
Metal Retaining Ring
Metal Sleeve
Copper Sleeve
Axis Sleeve
Piston
Piston
Piston
Spring Pin
Metal Block
Connecting Gasket
Screw
Filter
1
1
4
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
12
1
1
1
1
1
1
4
2
2
1
1
1
16
1
VALVE ASSEMBLY
9
Item
1
2
3
4
4.1
4.2
4.3
4.4
4.5
4.6
5
6
7
7.1
7.2
7.3
8
8.1
8.2
8.3
Description
Valve Block
Male Coupler
Famale Coupler
Reversing Valve
Valve Body
O-Ring
Retaining Ring
Retaining Ring
O-Ring
O-Ring
Steel Ball
Screw
Regulating Valve
Valve Body
Valve Body
O-Ring
O-Ring
Quantity
1
1
1
2
1
2
2
1
1
1
5
5
1
1
1
1
1
O-Ring
Solenoid Valve
O-Ring
1
2
1
Item
9
10
10.1
10.2
10.3
11
12
12.1
12.2
12.3
12.4
13
13.1
13.2
13.3
14
15
16
17
18
Description
Gauge 100Mpa
Connector
O-Ring
Connecting Fitting
Connecting Fitting
Screw Plug
Plug
Check Valve
Valve Body
Retaining Ring
O-Ring
O-Ring
Low Pressure Valve
Valve Body
O-Ring
O-Ring
Quantity
1
1
1
1
1
13
1
1
1
1
1
1
1
1
1
1
2
O-Ring
Spring Gasket
Gasket
Screw
4
4
4
HYDRAULIC PRINCIPLE
70
10
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