Ulvac GLD-040 User manual

No.18400-2-03-13
Instruction Manual
for
Direct-Drive Oil Sealed Rotary Vacuum Pump
Model
GLD-040
Before using the product, be sure to read this manual.
Keep this manual in a place where it can be referred to at any time
and look after it carefully.
The contents of this instruction manual are subject to change
without prior notice due to improvements in performance and the
functions of the product.
ULVAC KIKO,Inc.

EC Declaration of Conformity
We,
ULVAC KIKO,Inc.
of
291-7 Chausubaru, Saito-city, Miyazaki, 881-0037. Japan
In accordance with the following Directive:
2006/42/EC
Machinery Directive
declare under our sole responsibility that the product,
Type of Product
:
Oil Sealed Rotary Vacuum Pump
Model Name
:
GLD-040,GLD-136A,GLD-137AA,
GLD-201A,GLD-202AA,GLD-280A,
GLD-136C,GLD-137CC,GLD-201B,
GLD-202BB, GLD-280B
to which this declaration related is in conformity with the following standards:
EN 1012-2:1996+A1:2009
Compressors and vacuum pumps –Safety requirements, Part2. Vacuum pumps
IEC/EN 61010-1:2010
Safety requirement for electrical equipment for measurement, control and
laboratory use - Part 1: General requirement
IEC/EN 60034-1:2010
Rotating electrical machines
following the provisions of
The person stated below will keep the following technical documentation:
operating and maintenance instructions
technical drawings
description of measures designed to ensure conformity
other technical documentation, e.g. quality assurance measures for design and production
Person authorized to compile the technical file:
( Name and address) Chris Goebel
ULVAC Gmbh
Parkring11,85748,Garching,Germany
06.Dec, 2017
Miyazaki , Japan
Tsuneo Osaka/
(date & place)
(name & signature)

- 01 -
0. Introduction
0.1 Before using the vacuum pump
Thank you for purchasing our vacuum pump (hereinafter called “pump”). When you have received
the pump, check that the delivered pump is as per your order and that it has not been damaged in
transportation, etc.
In order to use the pump for as long as possible, read this instruction manual
thoroughly before performing installation, operation, inspection and
maintenance, and sufficiently understand the cautions for safety, the
specifications and operation methods of the pump.
No part of this instruction manual may be copied for use by a third party
without our permission.
Warning
Note

- 02 -
0.2 Safety symbols
In this instruction manual and on warning labels attached to the pump, the following symbols
are used so that matters which must be strictly adhered to can be readily understood.
These symbols are divided as shown below.
When mishandled, there is an imminent danger of the operator suffering a fatal
accident or serious injury.
When mishandled, there is a possibility of the operator suffering a fatal
accident or serious injury.
When mishandled, there is a possibility of the operator suffering an injury
(light or medium injury) or of damage occurring to property.
When mishandled, there is a possibility of the pump being damaged or
malfunctioning.
The Inlet port of the pump
The exhaust port of the pump
Caution
Note
Warning
Danger

- 03 -
0.3 Cautions for safety
This pump is for dry air or the dry nitrogen suck only.
Never allow people other than repair engineers to disassemble or repair the
pump. Failure to do so may result in ignition or malfunction, leading to injury
or electric shock.
Connect the earth wire correctly. It is set up that a dedicated earth leakage
breaker should be installed. If the earth wire is not connected, there is
a possibility of electric shock occurring in the case of a malfunction or
electrical leakage.
There is a risk of explosion. Never block the outlet or operate the pump with
equipment mounted at the outlet side which blocks the passage of gas.
Otherwise, the internal pump pressure increases causing the pump to explode,
the oil level gauge to protrude or the motor to be overloaded.
This pump is not resistant to pressure. The internal pump pressure is limited
to 0.03 MPa (gauge pressure).
It gets an electric shock touching the motor energizing part. Please work after
pulling out the power plug without fail when wires electricity is connected,
it checks, and it transfers it.
Do not use the pump in an explosive atmosphere. Failure to do so will result
in injury or fire.
When shipping from the factory, the motor is set for 100-120V class. Do not
operate with 200-240V power supply voltage. In order to operate with 200-240V
class, the changeover switch in the terminal box must be changed into 200-240V
class as shown in fig.3.4“Electric wiring.”
Danger
Warning
Warning
Warning
Warning
Warning
Warning

- 04 -
Never touch the rotating section of the motor, shaft or coupling while the
pump is in operation. Failure to do so will result in injury.
Never place combustible materials around the motor or pump. There is a risk
of fire.
Also, do not place objects which block ventilation around the motor. Abnormal
heat generation may result in burns or fire.
Do not touch the motor while the pump is in operation or when the pump is
still hot immediately after it stops. Touching it will result in burns.
Arrange wires correctly in accordance with the “Electrical Equipment
Technical Standard” and “Wiring Regulations.” Incorrect wiring may result
in fire.
If the pump ceases operation or malfunctions, turn off the power switch
immediately to prevent accidents, and ask the company from which you purchased
the pump or the manufacturer for inspection and repair.
Do not operate the pump without adding pump oil. If it is operated in an
oil-less condition, the pump will be damaged.
Caution
Caution
Caution
Caution
Caution
Note

- 05 -
0.4 Acceptance and storage of the pump
0.4.1 Acceptance of the pump
Although the pump is delivered with great care, check the following after unpacking.
①The delivered pump is in accordance with your request.
②The specified accessories (enough pump oil to use the pump once; optional equipment) have
been provided.
③No parts have been damaged in transportation.
④Neither screws nor nuts have become loose nor were lost in transportation.
If there are any problems, contact the company from which you purchased the pump or the sales
department of the manufacturer.
0.4.2 Environmental conditions for storage, installation and operation
Since this pump is precisely engineered, ensure that the following conditions be satisfied during
storage, installation and operation.
①Ambient temperature, relative humidity: 7°C ~ 40°C, 85% RH or less
② Height above sea level during storage and installation: 1,000 m or less
③ Minimum required distances from the wall, 100mm
④ Other conditions for storage and operation
a）Free from corrosive and explosive gases
b）No condensation
c）Dust-free environment
d）Indoors
e）Do not place pumps on top of each other or place a pump on its side.
f）Not subject to direct sunlight
g）Far from heat sources
h）When you keep it for a long period of time, put pump oil into a pump and seal a inlet port
with a cap.
i）Don't keep it, where moisture is attracted.
Since the pump weighs as much as 16 kg, do not lift or transport it by yourself.
Doing so may cause an injury. Please wear safety shoes at the time of work.
Perform such work by two people as shown in 3.1 “Installation.”
Do not subject the pump to shocks or place the pump on its side. Doing so
may damage the pump.
For indoors use only.
Note
Caution
Note

- 06 -
0.5 Protective device
The pump is equipped with a single-phase 100-120 V (50/60 Hz) and 200-240 V (50/60 Hz)
motor.
This motor has a total of two overload protectors built in: one is of automatic reset type and the other
of manual reset type.
The automatic reset type thermal protector is intended to protect the motor when the pump is locked.
For details, refer to “4.6 Automatic Reset Type Thermal Protector.” The manual reset type thermal
protector is intended to protect the auxiliary coil.
For details, refer to “4.7 Manual Reset Type Thermal Protector.”
End-user has to make provisions for the installation of the over current protection of the power
circuit.
For the selection of an overload protector, refer to “3.4 Electric wiring.”
The automatic reset type thermal protector, one of the overload protectors in
this motor, will automatically reset itself after it has functioned.
This motor houses an automatic returning thermal protector, which may be
activated in case of trouble. The motor will restart automatically when the
temperature goes down to 78 ± 5℃.
If the thermal protector is activated, pulled out the power plug immediately
for safety reason.
Use the pump only at the rated voltage. Use at other than the rated voltage
will interfere with correct operation of the overload protector, and result
in the motor burning out, or fire.
Note
Caution

Contents - 1
Contents
0. Introduction ·························· 01
0.1 Before using the vacuum pump ·························· 01
0.2 Safety symbols ·························· 02
0.3 Cautions for safety ·························· 03
0.4 Acceptance and storage of the pump ·························· 05
0.4.1 Acceptance of the pump ·························· 05
0.4.2 Environmental conditions for storage, installation and operation ·· 05
0.5 Protective device ·························· 06
1. For Safe Operation ·························· 1
1.1 Hazards peculiar to the pump and safety measures ······················· 1
1.1.1 Danger Leakage of hazardous gases and substances ············ 1
1.1.2 Warning Electric shock ·························· 1
1.1.3 Warning Explosion ·························· 2
1.1.4 Caution High temperature ·························· 2
1.2 Safety Data Sheet (SDS) ·························· 2
2. Outline of the Pump ·························· 3
2.1 Specification ·························· 3
2.2 Dimensional drawing ·························· 4
3. Installation ·························· 5
3.1 Installation ·························· 5
3.2 Lubrication ·························· 6
3.3 Vacuum piping ·························· 7
3.4 Electric wiring ·························· 8
3.5 Fluctuation in the power voltage and frequency ························· 10
4. Operation ·························· 11
4.1 Cautions for operation ·························· 11
4.2 Start of operation ·························· 12
4.3 Stopping the operation ·························· 12
4.4 Operation in cold climates ·························· 13
4.5 Backflow preventer ·························· 13
4.6 Automatic reset type Thermal protector ·························· 14
4.7 Manual reset type Thermal protector ·························· 14
4.8 Gas ballast valve ·························· 16
4.9 Installation of the oil mist trap (Option) ·························· 17
4.10 Restriction on operation when the oil mist trap is installed ········· 17

Contents - 2
5. Pump Performance ·························· 18
5.1 Ultimate pressure ·························· 18
5.2 Pumping speed ·························· 18
5.3 Power requirement ·························· 18
6. Maintenance, Inspection and Repair ·························· 20
6.1 Maintenance ·························· 20
6.2 Periodic inspection ·························· 20
6.3 Replacement of the pump oil ·························· 22
6.4 Replacement of the coupling spider ·························· 24
6.5 Trouble check list ·························· 25
7. Disposal ·························· 27
8. Maintenance parts ·························· 28
8.1 Maintenance parts list ·························· 28
8.2 Disassembly drawing ·························· 29
Warranty
Safety Data Sheet (SDS)
Pump Usage Check Sheet (Use this sheet for requesting an overhaul.)
Sales and Service Centers

Contents - 3
Figures and Tables
Fig. 1 Dimensional drawing of GLD-040 oil sealed rotary vacuum pump ·········· 4
Fig. 2 Transportation method of the oil sealed rotary vacuum pump ············ 5
Fig. 3 Lubrication of the oil sealed rotary vacuum pump ······················ 6
Fig. 4 Basic piping diagram to the vacuum chamber ·························· 7
Fig. 5 Electric wiring diagram ·························· 9
Fig. 6 Method of wiring for power supply switch ·························· 9
Fig. 7 Changeover switch in the terminal box ·························· 9
Fig. 8 Change region of the voltage and frequency ·························· 10
Fig. 9 Interior of Terminal Box,GLD-040 ·························· 15
Fig. 10 Manual Reset Type Thermal Protector ·························· 15
Fig. 11 Pumping speed curve ·························· 19
Fig. 12 Replacement of the coupling spider ·························· 24
Fig. 13 Disassembly drawing of GLD-040 oil sealed rotary vacuum pump ········· 29
Table 1 Specification ·························· 3
Table 2 Characteristics of the thermal protector ·························· 14
Table 3 Periodic inspection table ·························· 21
Table 4 Trouble check list ·························· 25
Table 5 GLD-040 Maintenance parts list ·························· 28
Attached table: Safety Data Sheet for Vacuum Pump Oil R-2

-1-
1. For Safe Operation
1.1 Hazards peculiar to the pump and safety measures
Before operating or inspecting the pump, read this section carefully to fully understand potential
hazards and prevention methods.
The pump is not to be used with toxic of flammable gases.
1.1.1 Danger Leakage of hazardous gases and substances
Cause Prevention method and measures
Injury due to touching toxic
pump oil in the pump or
harmful substances attached
to the pump during
inspection or disposal
⇒ ① Before overhauling and disposing of the pump, ask a
waste disposal specialist to make it safe.
②Ask an authorized waste disposal specialist to carry out
disposal.
1.1.2 Warning Electric shock
Cause Prevention method and measures
The energized part of the
motor was touched.
⇒ ① When connecting electric wires, always pulled out the
power plug and be sure to connect the earth wire.
②When inspecting and transferring the pump, always
pulled out the power plug.
③Never insert hands, fingers, or thin objects through the
motor opening.
Do not expose any part of the human body to vacuum.
Caution

-2-
1.1.3 Warning Explosion
Cause Prevention method and measures
The pressure in the pump
increased causing the pump
to explode.
⇒The maximum internal pump pressure is 0.03 MPa (gauge
pressure).
Measure the pressure at the outlet side and, if the pressure
is 0.03 MPa or more (gauge pressure), remove objects
which block the passage of gas from the outlet side. When
an oil mist trap is adopted, replace or clean it so that it will
not block the passage of gas.
1.1.4 Caution High temperature
Cause Prevention method and measures
High temperatures caused
burns.
⇒① The pump reaches a high temperature during operation.
Pump main unit during non-load operation →22 ~ 55℃
Motor during non-load operation →22 ~ 55℃
Pump main unit during high-load operation →32 ~ 65℃
Motor during high-load operation →32 ~ 65℃
(High-load operation: Operation at a pressure of 1kPa ~ 13kPa)
② If you use the pump in a high ambient temperature and
have a high gas throughput, the temperature of the
pump-boby may exceed 70℃and you must fit suitable
guards to prevent contact with hot surfaces.
③ Since the surface temperature is hot, touching the
surface accidentally may result in burns. Never touch the
pump during operation. When carrying out inspection, wait
for 10 minutes until the pump has cooled down completely
after it stops.
1.2 Safety Data Sheet (SDS)
The attached “Safety Data Sheet (SDS)” shows chemical materials which may be used or
touched when operating the pump. Read the SDS carefully in order to understand the harmful
properties of these materials.
Contact us before using chemical materials (vacuum pump oil) other than those mentioned in
this instruction manual.
SDS is submitted as reference information to ensure safe handling of hazardous
and harmful materials. Personnel handling the pump oil should be aware that
proper measures must be taken depending on the conditions of use as their
responsibility. Keep in mind that the SDS itself is not a warranty for safety.
Caution

-3-
2. Outline of the Pump
2.1 Specification
This oil sealed rotary vacuum pump is a rotary vane pump (hereinafter called Gaede type pump)
in which the pump is directly driven by the motor. Since the pump is small, light, and quite
simply constructed, it is easily maintained and repaired.
Table 1 Specification
GLD-040
Model Unit 50 Hz 60 Hz
Type Rotary vane (2 vanes)
Pumping speed L/min 40 48
G.V. close 6.7×10-1
Ultimate
pressure G.V. open Pa 6.7
Type 1-phase, 200W, 4 poles,
fully-closed external fan
Motor Voltage V 100-120/
200-240 100-120/ 200-240
Full-load current A
4.20 (100 V)
4.40 (110 V)
4.60 (115 V)
5.05 (120 V)
2.10 (200 V)
2.20 (220 V)
2.30 (230 V)
2.60 (240 V)
3.60 (100 V)
3.40 (110 V)
3.40 (115 V)
3.60 (120 V)
1.80 (200 V)
1.70 (220 V)
1.70 (230 V)
1.80 (240 V)
Revolution r/min
1440 (100 V)
1450 (110 V)
1460 (115 V)
1460 (120 V)
1440 (200 V)
1450 (220 V)
1460 (230 V)
1460 (240 V)
1740 (100 V)
1750 (110 V)
1750 (115 V)
1760 (120 V)
1740 (200 V)
1750 (220 V)
1750 (230 V)
1760 (240 V)
Standard oil R-2
Oil Oil amount mL 550～800
Weight kg 16
Ambient temperature
range ℃7 ～40 (If the oil temperature is lower than 7 °C, operation start-up may be difficult.)
Installation features Indoor
Noise level dB (A) 55 or less
Inlet port diameter - KF-25 (NW-25)
Max. size mm 150(W)×427(L)×227.5(H)
Leak rate Pa･m3/sec 1×10-6
Note 1: The ultimate pressure values in the above table are indicated by a Pirani gauge.
Note 2: Vacuum pump oils have different steam pressures, viscosities, and oil properties depending
on the type. Always use the oil sealed rotary vacuum pump oil specified by us. The use of
other oils will affect the pump’s performance.
Specified oil: R-2
Note 3: “G.V.” is an abbreviation for gas ballast valve.
Note 4: The motor voltage is switched between 100-120V and 200-240V by the changeover switch
in the terminal box.

-4-
2.2 Dimensional drawing
Fig. 1 Dimensional drawing of GLD-040 oil sealed rotary vacuum pump

-5-
3. Installation
3.1 Installation
The pump should be installed on a level surface in a location with minimal dust, dirt and
humidity and be arranged with consideration given to ease of installation, removal, inspection
and cleaning.
Particular attention should be paid to the ambient temperature when building the pump into
equipment. Use a rubber vibration isolator to separate the pump from other equipment and to
isolate the pump from the vibrations of other equipment. See “0.4.2 Environmental conditions
for installation, storage and operation” for details.
Fig. 2 Transportation method of the oil sealed rotary vacuum pump
Since the pump weighs as much as 16 kg, do not lift or transport it by yourself.
Doing so may cause an injury. Always carry out work with two people when
transporting a pump, wear safety shoes as shown in Fig. 2.
Minimum required distances from the wall, 100mm.
If the pump is operated whilst it is tilted, placed on its side or upside-down,
the pump will be damaged. Install the pump level with the inlet facing up
as shown in Fig. 1.
Note
Caution
Caution

-6-
3.2 Lubrication
Remove the oil inlet plug from the oil inlet port, and add the pump oil which has been delivered
together with the pump or the pump oil specified by us (R-2) up to the range marked with the
line on the oil level gauge. When making the first lubrication, add oil near to the upper oil level
limit shown on the oil level gauge. After lubrication, mount the oil inlet plug to the pump (see
Fig. 3).
Always keep the oil level of the pump within the oil limit range shown on the oil level gauge
during operation. If the amount of oil is incorrect, the performance of the pump will deteriorate
resulting in the malfunctioning of the pump. When the amount of oil has reduced and the oil
level has reached an area below the lower line which shows the lower limit on the oil level
gauge such that the level cannot be seen, the ultimate pressure increases and exhausting sound
may not cease.
(1) Oil level shown on the oil level gauge (2) Lubrication method
Fig. 3 Lubrication of the oil sealed rotary vacuum pump
① Wear protective equipment such as rubber gloves and safety goggles.
② Be sure to read the attached “Safety Data Sheet” before adding oil. If
the oil accidentally comes into contact with your hands or enters your
eyes, take proper measures in accordance with the section “First-aid
treatment” shown in “Safety Data Sheet.”
Use only oils specified by us. If other oils are used, the pump performance
will deteriorate or its life will be shortened.
Note
Caution

-7-
3.3 Vacuum piping
(1) Before connecting the pipe to the pump, clean the inner walls of the vacuum chamber,
piping and vacuum valve to completely eliminate moisture, fine particles, dust, dirt and rust.
If fine particles, dust or dirt, etc are evacuated, the pump may malfunction.
If moisture is evacuated, not only does the ultimate pressure increase but also
the inside of the pump becomes rusty causing the pump to malfunction.
(2) Mount vacuum valve (A) and leak valve (B) between the vacuum chamber and pump as
shown in Fig. 4.
Fig. 4 Basic piping diagram to the vacuum chamber
(3) Use a KF-25 (NW-25) flange for the connection to the inlet port.
The wire mesh in the inlet port has been adopted to prevent foreign matter from
entering the pump. Do not remove the wire mesh.
Note
Vacuum chamber
Vacuum valve
(A)
Leak valve (B)
Pump
Note

-8-
3.4 Electric wiring
(1) The pump rotates in the clockwise direction as seen from the front of the pump (level gauge
side).
(2) When wiring, open the terminal box of the motor and connect the wires as shown in Fig. 5.
(3)Please select the power supply cord with a suitable plug to the power-supply voltage, and
connect wires by using pressure wear terminal (#250) with the insulation coating as shown in
Fig 6.
(4) Convert the voltage, 100-120V class or 200-240V class by pressing the intended voltage side
of the changeover switch in the terminal box. When shipping from the factory, the
motor is set for 100-120V class.(Fig 7.)
(5)An overload protector (auto reset thermal protector) is incorporated.
(6)End-user has to make provisions for the installation of the over current protection of the
power circuit.
(7)The screw of the earth terminal at the motor side is provided with an “earth mark” in the
terminal box.
If the pump is directly (and permanently) connected to the host equipment then
the end-user has to provide adequate disconnection device.
GROUNDING INSTRUCTIONS
In the event of an electrical short circuit, grounding reduces the risk of
electric shock by providing an escape wire for the electric current. This pump
is equipped with a cord having a grounding wire with an appropriate grounding
plug. The plug must be plugged into an outlet that is properly installed and
grounded in accordance with all local codes and ordinances.
If power code is not equipped (option) then appropriate grounding shall be
provided upon installation.
Improper installation of the grounding plug is able to result in a risk of
electric shock. When repair or replacement of the cord or plug is required,
do not connect the grounding wire to either flat blade terminal. The wire with
insulation having an outer surface that is green with or without yellow stripes
is the grounding wire.
When shipping from the factory, the motor is set for 100-120V class. Do not
operate with 200-240V power supply voltage. In order to operate with 200-240V
class, the changeover switch in the terminal box must be changed into 200-240V
class as shown in fig.7.
Warning
Note
Warning
Warning

-9-
Check with a qualified electrician or serviceman when the grounding
instructions are not completely understood, or when in doubt as to whether the
product is properly grounded. Do not modify the plug provided; if it does not
fit the outlet, have the proper outlet installed by a qualified electrician.
This pump must be connected to a grounded, metallic, permanent wiring system,
or an equipment-grounding terminal or lead on the product.
Fig. 5 Electric wiring diagram
Fig. 6 Method of wiring for power supply switch
1-phase, 100-120V power source 1-phase, 200-240V power source
Fig. 7 Changeover switch in the terminal box
Pressure wear terminal
Earth terminal
Power supply switch
Note
Note