Ulvac GLD-137CC User manual

No.62500-2-01-8
Instruction Manual
for
Direct-Drive Oil Sealed Rotary Vacuum Pump
Model
GLD-137CC
GLD-202BB
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)

(1/2)
Power Cable Selection Standards
Thank you very much for your purchasing our vacuum pump.
This vacuum pump does not have any power cable attached as supplied.
It is up to the user to provide an appropriate power cable for your vacuum pump.
Please be advised of the standards and precautions that you should use to provide
the power cable.
1. Power Cable Selection Standards
The pump is equipped with a single-phase 100-120 V (50/60 Hz) and 200-240 V (50/60 Hz) motor.
Power cable selection standards vary with the working power supply voltage, 100-120V or 200-240V.
The power cable selection standards are shown in a table below.
Do not fail to select your power cable in accordance with the standards.
For a shape of the cable plug to be inserted in the pump motor power inlet, select Type IEC60320-C13.
Power Cable Selection Standards
Supply Voltage Voltage Rating Current Rating Temperature
Rating
100-120V 120V or more 13A or more instantaneous (5sec)
50A or more
200-240V 240V or more 7A or more instantaneous (5sec)
30A or more
70℃ or more
2. Precautions
2.1 Unplug-preventive hardware
Whenever you may operate the vacuum pump with your power cable, provide it with the
unplug-preventive hardware, which should be selected so as to fit the shape of the power cable.
The unplug-preventive hardware allows you to secure the power cable so that the motor may not
Accidentally have it unplugged.
For a procedure for installing the unplug-preventive hardware, refer to “2.2 How to Install
Unplug-preventive Hardware.”
Whenever you may operate the vacuum pump with the power cable, do not fail to secure
it with the unplug-preventive hardware.
Should you operate the vacuum pump without the unplug-preventive hardware, there
is a fear that the power cable may be unplugged during the operation. If so, the
vacuum pump will stop operating, bringing about possibilities, such as electric
shock, injury, fire or the like.
Warning

(2/2)
2.2 How to Install Unplug-preventive Hardware
Install the unplug-preventive hardware in accordance with the procedure as follows:
(1) Let one end of the unplug-preventive hardware
catch the hole to the side of the inlet in the interior.
(2) While pushing the unplug-preventive hardware at
the other end, let it catch the hole to the side of the
inlet in the interior.
(3) Raise the unplug-preventive hardware.
(4) Insert the power cable firmly enough.
(5) Lower the unplug-preventive hardware and
secure the power cable.
Now, the unplug-preventive hardware is completely installed.
(1) (2)
(3)
(4)
(5)

- 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 recommended 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).
The Vacuum Pump Unit is device a built-in device. Do not install it without
adequate protection against heat hazard. The surface temperature of the
vacuum Pump Unit can exceed 90 degrees in case it is operated under high
pressure (atmospheric to 10kPa).
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.
Danger
Warning
Warning
Warning
Warning
Warning

- 04 -
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“Changing the voltage class.”
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.
Warning
Caution
Caution
Caution
Caution
Warning

- 05 -
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.
Note
Caution

- 06 -
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 over 20 kg, do not lift or transport it by yourself. Doing
so may cause an injury. Wear safety shoes at the time of work. Perform such
work by two people as shown in 3.1 “Installation.” and wear safety shoes.
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

- 07 -
When you keep it, without using a pump for a long period of time, please put
pump oil into a pump and seal a inlet port. Oil is not put into a pump, but
if it is kept where a inlet port is opened wide, water absorption may expand
vanes of a pump and a pump may stop rotating.
Please do not leave it, where moisture is sucked. If it is left with moisture
sucked, since water absorption expansion of vanes and the corrosion of pump
parts will be promoted, a pump may stop rotating.
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.
An overload protector (Auto reset thermal protector) is incorporated.
The use of another protective device (such as an earth leakage breaker) in addition to the
overload protector is recommended.
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 ± 9℃.
If the thermal protector is activated, switch off the power 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
Note
Note

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 ·························· 06
0.4.1 Acceptance of the pump ·························· 06
0.4.2 Environmental conditions for storage, installation and operation ·· 06
0.5 Protective device ·························· 07
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 ·························· 1
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 ·························· 6
3.1 Installation ·························· 6
3.2 Lubrication ·························· 7
3.3 Vacuum piping ·························· 8
3.4 Changing the voltage class ·························· 9
3.5 Electric wiring ·························· 10
3.6 Fluctuation in the power voltage and frequency ························· 12
4. Operation ·························· 13
4.1 Cautions for operation ·························· 13
4.2 Start of operation ·························· 14
4.3 Stopping the operation ·························· 14
4.4 Operation in cold climates ·························· 15
4.5 Backflow preventer ·························· 15
4.6 Thermal protector ·························· 16
4.7 Gas ballast valve ·························· 16
4.8 Installation of the oil mist trap (Option) ·························· 17
4.9 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 ·························· 30
Warranty
Safety Data Sheet (SDS)
Pump Usage Check Sheet (Use this sheet for requesting an overhaul.)

Contents - 3
Figures and Tables
Fig. 1 Dimensional drawing of GLD-137CC oil sealed rotary vacuum pump ······· 4
Fig. 2 Dimensional drawing of GLD-202BB oil sealed rotary vacuum pump ······· 5
Fig. 3 Transportation method of the oil sealed rotary vacuum pump ··········· 6
Fig. 4 Lubrication of the oil sealed rotary vacuum pump ······················ 7
Fig. 5 Basic piping diagram to the vacuum chamber ·························· 8
Fig. 6 Changeover switch in the terminal box ··························· 9
Fig. 7 Electric wiring diagram ·························· 11
Fig. 8 An Inlet(EN60320) ·························· 11
Fig. 9 Change region of the voltage and frequency ·························· 12
Fig. 10 Pumping speed curve ·························· 19
Fig. 11 Replacement of the coupling spider ·························· 24
Fig. 12 Disassembly drawing of GLD-137CC oil sealed rotary vacuum pump ······· 30
Fig. 13 Disassembly drawing of GLD-202BB oil sealed rotary vacuum pump ······· 31
Table 1 Specification ·························· 3
Table 2 Characteristics of the thermal protector ·························· 16
Table 3 Periodic inspection table ·························· 21
Table 4 Trouble check list ·························· 25
Table 5 GLD-137CC Maintenance parts list ·························· 28
Table 6 GLD-202BB Maintenance parts list ·························· 29
Attached table: Safety Data Sheet for Vacuum Pump Oil SMR-100

-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 turn off the
power and be sure to connect the earth wire.
②When inspecting and transferring the pump, always turn
off the power.
③Never insert hands, fingers, or thin objects through the
motor opening.
Do not expose any part of the human body to vacuum.
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.
Caution

-2-
1.1.4 Caution High temperature
Cause Prevention method and measures
High temperatures caused
burns.
⇒① The pump reaches a high temperature during operation.
(Temperature increasing)
Pump main unit during non-load operation → 25K
Motor during non-load operation →25K
Pump main unit during high-load operation → 75K
Motor during high-load operation → 25K
(High-load operation: Operation at a pressure of 1kPa ~ 10kPa)
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 90℃and you must fit suitable
guards to prevent contact with hot surfaces.
③ Please be sure to protect and cool surface of
vacuum pump and away from human body. Use this pump
as built-in type.
④ 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.
Newest SDS shall be used when the safety of material is investigated.
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-137CC GLD-202BB
Model Unit
50 Hz 60 Hz 50 Hz 60 Hz
Type Rotary vane (2 vanes)
Pumping speed L/min 136 162 200 240
G.V. close 6.7×10-1
Ultimate
pressure G.V. open Pa 6.7
Type 1-phase, 400W, 4 poles,
fully-closed external fan 1-phase, 550W, 4 poles, fully-closed external fan
Motor Voltage V 100-120/
200-240 100-120/ 200-240 100-120/ 200-240 100-120/ 200-240
Full-load current A
6.8
(100-120V)
3.5
(200-240V)
5.8
(100-120V)
2.9
(200-240V)
8.2
(100-120V)
4.1
(200-240V)
7.9
(100-120V)
3.9
(200-240V)
Motor speed r/min
1455
(100-120V)
1455
(200-240V)
1750
(100-120V)
1750
(200-240V)
1435
(100-120V)
1435
(200-240V)
1730
(100-120V)
1730
(200-240V)
Standard
oil SMR-100
Oil Oil
amount mL 1,000 1,100
Weight kg 29 31
Ambient temperature
range ℃7 ～40 (If it falls below the 7 ℃, operation start-up may be difficult.)
Installation features Indoor
Noise level dB (A) 57 or less(Ultimate pressure at 1m)
Inlet port diameter - KF-25 (NW-25)
Max. size mm 170(W)×487.5(L)×249.5(H) 170(W)×515.5(L)×249.5(H)
Leak rate Pa･m3/sec 1×10-6
Note 1: Ultimate pressure indication by 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: SMR-100
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-137CC oil sealed rotary vacuum pump

-5-
Fig. 2 Dimensional drawing of GLD-202BB oil sealed rotary vacuum pump

-6-
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. 3 Transportation method of the oil sealed rotary vacuum pump
Since the pump weighs over 20 kg, do not lift or transport it by yourself.
Doing so may cause an injury. Always carry out work with two people as shown
in Fig. 3.
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. 1.2.
Keep strictly to the followings if you install the pump with eyebolts.
① You must not use eyebolts if it exceed the pump in weight.
② Surely check out wear and bend of eyebolts before using.
Don't use them if you find them deformation.
③ Sling the pump up slowly. It is dangerous to sling up rapidly.
④ Keep strictly to an angle of 60 degrees at wires when you sling it up.
Note
Caution
Caution
Caution