Tuthill KINNEY KSVB 25 Operating instructions

KINNEY® KSVB™ SERIES
Manual 1863-2
Oil Lubricated, Rotary Vane Vacuum Pumps
INSTALLATION
OPERATION
MAINTENANCE
REPAIR
WARNING
DO NOT OPERATE
BEFORE READING MANUAL
07/2014
LEADING THE SEARCH FOR NEW SOLUTIONS
4840 West Kearney Street, P. O. Box 2877
Springfield, Missouri USA 65801-2877
Tel [phone] 825-6937 Fax [phone]
www.tuthillvacuumblower.com

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DO NOT VALVE OR RESTRICT PUMP
DISCHARGE OPENING.
USE OIL MIST ELIMINATOR WHEN
OPERATING PUMP, ENSURE ADEQUATE
VENTILATION WHEN DISCHARGING INDOORS
REFER TO MANUAL SAFETY INSTRUCTIONS.
!CAUTI ON
NOTICE
The above safety instruction tags were permanently affixed to your pump prior to shipment.
Do not remove, paint over or obscure in any manner.
Failure to heed these warnings could result in serious bodily injury
to the personnel operating and maintaining this equipment.
SAFETY PRECAUTIONS FOR ROTARY VANE PUMPS
Please read the following safety information on this page before operating your vacuum pump.
• Please read the following safety information on this page before operating your vacuum pump.
• Do not operate the pump without the guard properly attached. Disconnect the pump motor from the electrical supply
at the main disconnect before removing the guard. Replace the guard before reconnecting the power supply to the
pump motor. Operating the pump without the guard properly installed exposes personnel in the vicinity of the pump
to risk from rotating drive components.
• Do not operate the pump with oxygen-enriched gas (greater than 20% by volume) in the suction line, unless the
pump has been prepared with an inert fluid suitable for the application.
• Pumping oxygen-enriched gases with mineral oil or other non-inert fluids can cause fire or explosion in the pump,
resulting in damage or serious bodily injury.
• Take precautions to avoid prolonged or excessive exposure to oil mist or process materials emanating from the
discharge of the pump.
• Do not allow the pump to discharge into a closed, or inadequately ventilated room. Always use a discharge oil mist
eliminator unless the pump discharge is discharged to outside atmosphere. Laws and ordinances may pertain to
your local area regarding discharge of oil mist or vapor to atmosphere. Check local laws and ordinances prior to
operation of the pump with discharge to outside atmosphere. Venting of the discharge of an oil mist eliminator to
outside atmosphere is highly recommended.
• Do not restrict the pump discharge in any way, or place valves in the discharge line. The vacuum pump is a
compressor and will generate high pressures without stalling the motor when operated at low suction pressures.
Excessive pressure could cause damage or serious bodily injury.
• Disconnect the pump motor from the electrical supply at the main disconnect before disassembling or servicing the
pump. Make sure pump is completely reassembled, the belt guard is properly installed, and that all fill and drain
valves are installed and closed before reconnecting the power supply. Accidental starting or operation of the pump
while maintenance is in progress could cause damage or serious bodily injury.
• Lift pump only as shown in this manual.
• Do not touch hot surfaces on the pump. In normal operation at low pressures, surface temperatures will not normally
exceed 180° F (82° C). Prolonged operation at 200 Torr (267 mbar a) may cause surface temperatures as high as
220° F (104° C)

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TABLE OF CONTENTS
SECTION PAGE
SAFETY PRECAUTIONS FOR ROTARY VANE PUMPS 2
INTRODUCTION 4
SECTION 1 — GENERAL INSTRUCTIONS 4
1.1 — SAFETY INSTRUCTIONS 4
1.2 — APPLICATION RANGE 4
1.3 — PRINCIPLE OF OPERATION 4
1.4 — SPECIFICATION TABLE 5
KSVB-25 DIMENSIONAL DRAWINGS AND PERFORMANCE CURVES 6
KSVB-40/65 DIMENSIONAL DRAWINGS AND PERFORMANCE CURVES 7
KSVB-100 DIMENSIONAL DRAWINGS AND PERFORMANCE CURVES 8
1.5 — TRANSPORT AND PACKING 9
1.6 — MOUNTING ORIENTATION AND STORAGE 9
1.7 — LUBRICANTS 9
SECTION 2 — INSTALLATION 9
2.1 — SETTING-UP 9
2.2 — INLET CONNECTION 9
2.3 — CONNECTION TO EXHAUST SIDE 9
2.4 — OIL FILLING 9
2.5 — ELECTRICAL CONNECTION 10
2.6 — OPERATION 10
2.7 — SHUTDOWN 10
SECTION 3 — MAINTENANCE 10
MAINTENANCE SCHEDULE CHART 11
3.1 — OIL LEVEL 11
3.2 — OIL CHANGING AND REPLACING THE OIL FILTER 12
3.3 — EXHAUST FILTERS REPLACEMENT 12
3.4 — GAS BALLAST VALVE CLEANING 12
3.5 — INLET FLANGE DIRT TRAP CLEANING 12
3.6 — ANTI-SUCK BACK VALVE CHECKING 12
3.7 — FAN COVER CLEANING 12
3.8 — CHECKING THE FLOAT VALVE 12
3.9 — BREAKDOWN ANALYSIS 12
SECTION 4 — SPARE PARTS 13
TROUBLESHOOTING GUIDE 13
KSVB-25 EXPLODED VIEW & PARTS LIST 14
KSVB-40 EXPLODED VIEW & PARTS LIST 16
KSVB-65 EXPLODED VIEW & PARTS LIST 18
KSVB-100 EXPLODED VIEW & PARTS LIST 20
WARRANTY – VACUUM PRODUCTS 22

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INTRODUCTION
CONGRATULATIONS on your purchase of a new KINNEY®KSVB™ oil lubricated, rotary vane vacuum pump from
Tuthill Vacuum & Blower Systems. Please examine the pump for shipping damage, and if any damage is found, report
it immediately to the carrier. If the pump is to be installed at a later date make sure it is stored in a clean, dry location
and rotated regularly. Make sure covers are kept on all openings. If pump is stored outdoors be sure to protect it from
weather and corrosion.
KINNEY KSVB vacuum pumps are built to exacting standards and if properly installed and maintained will provide many
years of reliable service. We urge you to take time to read and follow every step of these instructions when installing and
maintaining your pump. We have tried to make these instructions as straightforward as possible. We realize that getting
any new piece of equipment up and running in as little time as possible is imperative to production.
WARNING: Serious injury can result from operating or repairing this machine without first reading the service manual
and taking adequate safety precautions.
IMPORTANT: Record the model and serial numbers of your pump in the OPERATING DATA form on the inside back
cover of this manual. You will save time and expense by including this reference identification on any replacement part
orders, or if you require service or application assistance.
SECTION 1 — GENERAL INSTRUCTIONS
1.1 — SAFETY INSTRUCTIONS
WARNING: KSVB pumps are not designed:
• For pumping of aggressive, corrosive, flammable or explosive gases or gases mixtures
• For pumping of oxygen or other highly reactive gases with a greater concentration than atmospheric concentration
(>20% )
• For working in flammable or explosive environment.
• For all these cases, special materials must be used. In case of doubt, please contact Tuthill Vacuum & Blower
Systems.
OTHER WARNINGS:
• Liquid and solid particles must not enter the pump. Install the adequate filters, separators and/or condensers.In
case of doubt consult Tuthill Vacuum & Blower Systems.
• The intake line of the pump must never be connected to a device with greater than atmospheric pressure. Size
the exhaust line to not exceed a pressure higher than 16.7 PSIA (1,15 bar abs) [2 PSIG (0,15 Bar )] at the pump
discharge port.
• Operating the pump without oil or operating with incorrect motor rotation can destroy the pump.
• Never expose any part of the body to the vacuum. Serious injury can occur. Never operate the pump with an open
and thus accessible inlet. Vacuum connections as well as oil filling and oil-draining ports must not be opened during
operation of the pump.
• When operating, pump is hot and some surfaces could reach a temperature higher than 80°C (176°F). There is a
risk of burn by touching.
• Depending on the process involved, dangerous substances and oil may escape from the pump. Take the necessary
safety precautions!
1.2 — APPLICATION RANGE
KSVB pumps are designed for the pumping of inert gases in the range of rough vacuum, between atmospheric pressure
and ultimate pressure of the pump.
1.3 — PRINCIPLE OF OPERATION
The KSVB pumps are single-stage oil sealed rotary vane vacuum pumps. The rotor, having three slots in which the
vanes are sliding, is eccentrically installed in a pump cylinder (stator). The vanes separate the interior space into three

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chambers. The volume of these chambers varies with the rotation of the rotor. The gas sucked into the inlet chamber
is compressed and then pushed out at the exhaust valve. The oil injected in the inlet chamber guarantees the air-
tightness, the lubrication and cooling of the pump. It is dragged off by the compressed gases and roughly separated
by gravity, when entering in the oil sump. A fine separation is then performed in the exhaust filter. An internal transfer
pushes the collected oil back into the vacuum generator, the transfer is operated by a float valve to avoid atmospheric
air coming from the oil casing to the inlet of the pump when no oil is present in the recovery system. The oil circulation
functions by differential pressures. On some models, the oil circuit integrated contains an oil filter. The anti-suckback
valve at the inlet flange prevents oil from coming back into the inlet line when the pump is stopped.
1.4 — SPECIFICATION TABLE
TECHNICAL DATA UNIT
KSVB 25 KSVB 40 KSVB 65 KSVB 100
50 Hz 60 Hz 50 Hz 60 Hz 50 Hz 60 Hz 50 Hz 60 Hz
Nominal Pumping speed cfm / m3/h 15 / 26 18 / 31 26 / 44 31 / 53 35 / 59 42 / 71 57 / 97.5 69 / 117
Pumping Speed cfm / m3/h 13 / 22.5 15 / 25 23 / 38.5 28 / 47 32 / 54 38 / 64 51 / 87.5 62 / 105
Ultimate Partial Pressure without
Gas Ballast torr / mbar .375 / <0.5 .375 / <0.5 .375 / <0.5 .375 / <0.5 .375 / <0.5 .375 / <0.5 .375 / <0.5 .375 / <0.5
Ultimate Total Pressure with small
gas ballast torr / mbar — — 0.6 / <0.8 0.6 / <0.8 0.6 / <0.8 0.6 / <0.8 0.6 / <0.8 0.6 / <0.8
Ultimate total pressure with
standard gas ballast torr / mbar 0.6 / <0.8 0.6 / <0.8 1.1 / <1.5 1.1 / <1.5 1.1 / <1.5 1.1 / <1.5 1.1 / <1.5 1.1 / <1.5
Water vapor tolerance
with small gas ballast
with standard gas ballast
torr / mbar
—
7.5 / 10
—
7.5 / 10
7.5 / 10
22.5 / 30
7.5 / 10
22.5 / 30
7.5 / 10
22.5 / 30
7.5 / 10
22.5 / 30
11.25 / 15
22.5 / 30
11.25 / 15
22.5 / 30
Water vapor tolerable load
with small gas ballast
with standard gas ballast
qt/h / kg.h-1
—
0.09 / 0.08
—
0.11 / 0.1
0.3 / 0.28
0.8 / 0.76
0.36 / 0.34
0.95 / 0.90
0.38 / 0.36
1.1 / 1
0.44 / 0.42
1.32 / 1.25
0.48 / 0.45
1.69 / 1.60
0.63 / 0.60
1.80 / 1.70
Noise Level dB(A) 64 67 58 60 60 64 61 64
Motor Power —
Rated rotational speed HP / kW 1.2 / 0.9 1.5 / 1.1 1.5 / 1.1 2 / 1.5 2 / 1.5 2.5 / 1.8 3 / 2.2 4 / 3
Mains voltage
V – 1Ø — 115 / 230 — — — — — —
V – 3Ø 220/400
230-400 208-230/460 208-230/460 208-230/460 208-230/460
Protection – Isolation IP 55 - F IP 55 - F IP 55 - F IP 55 - F IP 55 - F IP 55 - F IP 55 - F IP 55 - F
Leak Rate mbar.1.s-1 1 x 10-3 1 x 10-3 1 x 10-3 1 x 10-3 1 x 10-3 1 x 10-3 1 x 10-3 1 x 10-3
Oil Type/Capacity qt / l 0.53 / 0.5 0.53 / 0.5 1 / 1 1 / 1 2.1 / 2 2.1 / 2 2.1 / 2 2.1 / 2
Intake Connection
& Exhaust Connection NPT (F) in. 3/4” 3/4” 1-1/4” 1-1/4” 1-1/4” 1-1/4” 1-1/4” 1-1/4”

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KSVB25
A B C D E F G H J K L M N P Q R S T U V W X Y Z AA BB
in. * 9.09 2.28 1.73 3.50 6.18 8.31 6.81 9.69 1.97 * * 8.31 8.31 0.75 11.02 2.56 14.02 2.20 6.10 7.48 3.15 0.43 3.94 2.25 7.76
mm * 231 58 44 89 157 211 173 246 50 * * 211 211 19 280 65 356 56 155 190 80 11 100 57 187
KSVB-25 A L M
230 V 10.83 / 275 7.6 / 193 8.19 / 208
115 V (60 Hz only) 10.83 / 275 9.25 / 235 8.82 / 224
3Ø 9.09 / 231 — 8.23 / 209
* Motor size specific dimensions
TYPICAL PUMPING SPEED CURVES
All dimensions are shown in both inches and millimeters.

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KSVB40/65
TYPICAL PUMPING SPEED CURVES
A B C D E F G H J K L M N P Q R S T
KSVB-40 in. 11.2 6.3 2.9 9.25 1.8 10.04 10.43 8.54 13.78 16.7 16.7 20.1 — 1.57 8.66 5.91 1.69 425
mm 284 160 74 235 46 255 265 217 350 143 425 510 — 40 220 150 43 16.73
KSVB-65 in. 12.6 6.69 3.74 10 1.97 10.47 10.39 8.50 13.78 18.9 18.9 22.2 8.46 — 8.46 5.91 2.05 18.9
mm 320 170 95 254 50 266 264 216 350 480 480 565 215 — 215 150 52 480
All dimensions are shown in both inches and millimeters.

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KSVB100
All dimensions are shown in both inches and millimeters.
TYPICAL PUMPING SPEED CURVES
A B C D E F G H J K L M N P Q R S T U
in. 8.23 3.74 10.16 12.60 15.75 10.67 9.66 10.67 11.42 13.78 6.30 29.72 23.23 12.99 2.09 8.86 1.06 8.86 5.91
mm 209 95 258 320 400 271 220 271 290 350 160 755 590 330 53 225 27 225 150

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1.5 — TRANSPORT AND PACKING
KSVB vacuum pumps pass a rigorous operating test in the factory and are packed to avoid transportation damage.
Please check packaging on delivery for any shipping damage. Packing materials should be disposed of according to
environmental laws or reused. These operating instructions are part of the consignment. The connection ports are
blanked off by plastic protective caps or self-adhesives. Take these caps or self-adhesives off before turning on the
pump.
For KSVB 40 and KSVB 65, the initial bottle of oil is supplied with the pump. For the KSVB 100, the pump is shipped
filled with oil.
1.6 — MOUNTING ORIENTATION AND STORAGE
MOUNTING ORIENTATION: See required space on charts on pages 6-9. Pumps which have been filled with oil must
only be moved in the upright position (horizontally), otherwise oil may escape. The angle of slope may not be over 10°
max. Avoid any other orientations while moving the pump.
STORAGE: Before storing the pump for a long time, put it back to its original condition (blank off inlet and exhaust ports
with the shipping seals, drain the oil sump) and store the pump in a dry place at room temperature.
1.7 — LUBRICANTS
The KSVB pumps should be run with mineral oils for vacuum pumps with low viscosity according to ISO category VG77.
The TVBS AX oil meets these requirements.
SECTION 2 — INSTALLATION
It is essential to observe the following instructions step-by-step to ensure safe start-up. Start-up may only be conducted
by trained specialists.
2.1 — SETTING-UP
The pump must be set up or mounted horizontally on a flat surface. Special mounting is not required. In order to avoid
over-heating of the pump, an undisturbed fresh airflow to the pump is necessary. The following ambient operating
environment must be observed:
• Ambient temperature: 12°C to 40°C (54°F to 104°F)
• Ambient pressure = Atmospheric pressure
2.2 — INLET CONNECTION
The inlet flange can be connected with a vacuum-tight flexible hose and/or pipe. The pipes should not cause stress on
the pump’s flanges. If necessary, flex connectors must be installed. Restriction of the pipes must be avoided in order
to not decrease the pumping speed of the pump. The nominal diameter of the pipes has to be at least the same as the
diameter of pump’s inlet flange.
2.3 — CONNECTION TO EXHAUST SIDE
No isolation or restricting devices should be installed in the exhaust line of the pump. If an exhaust line is installed, it
must at least have the same diameter as the exhaust flange. It should be installed in a manner so that no condensation
can enter the pump (siphon, slope). WARNING: The maximum exhaust pressure must not exceed 16.7 PSIA (1,15 bar
absolute) [2 PSIG ( 0,15 Bar rel.)], nor fall under atmosphere pressure minus 1 torr (15 mbar).
2.4 — OIL FILLING
To fill the pump with oil, unscrew the oil fill plug (Fig. 52) and fill in until the oil level reaches the MAX–mark beside the
oil sight glass.

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2.5 — ELECTRICAL CONNECTION
WARNING: Ensure that incoming power to the pump is off before wiring the motor or altering the wiring. Electrical
connections must be done by a qualified electrician in accordance with the applicable safety regulations.
Wire the motor for the correct supply voltage via connections in the junction box. See the wiring diagram on the motor
or in the junction box. For proper connection, a suitable motor protection switch must be used. Set the switch in
accordance with the rating on the motor nameplate.
WARNINGS:
• If any security switch or electrical defect cuts out the pump, re-startup of the pump is only possible by hand-action.
• After connecting the motor and after each time you alter the wiring, check the direction of rotation. Observe the
direction arrow on the motor hood. During the check, the intake port should be open. If the direction of rotation is
wrong, oil may be ejected out the intake port. The vacuum system may be pressurized.
• Don’t use the motor fan for checking the rotation direction. The motor fan rotates too fast to clearly check during
operation; when it slows during shutdown, it reverses its direction.
• Briefly switch ON the pump, check if you can feel suction at the inlet port, and immediately turn off the pump. When
the pump is rotating correctly, you should feel suction at the inlet port.
• If you need to correct the direction of rotation, turn off the power supply and interchange two phases of the connection.
• We recommend checking the direction of rotation with a phase-sequence indicator.
• Prolonged running of the motor in the wrong direction of rotation will damage the pump!
2.6 — OPERATION
When removing condensable vapors, a gas ballast valve must be used. The vacuum pump must be run for 30 minutes
prior to operation with the inlet connection closed, in order to reach the operating temperature of about 165˚F (75°C).
Condensable vapors can only be processed above the minimum operating temperature. After use, the pump has to be
left running for an additional 30 minutes with the inlet connection closed, to clear the oil of condensate.
2.7 — SHUTDOWN
The inlet flange of the KSVB-pumps contains an anti-suck back valve. It closes the inlet flange when the pump is
manually or accidentally shut down, thus maintaining the vacuum in the connected system and preventing oil from being
sucked back into the system. Except as indicated in Section 2.6 (operation) there are no particular precautions for the
shutdown of the pump. If the pump must be stopped for a longer period, see Section 1.7.
SECTION 3 — MAINTENANCE
WARNINGS:
• Disconnect the power before disassembling the pump. Make absolutely sure that the pump cannot be accidentally
started.
• If the pump has pumped harmful substances, ascertain the nature of the hazard and take adequate safety measures.
Observe all safety regulations.
SERVICE AT TUTHILL VACUUM & BLOWER SYSTEMS: If you send a pump to TVBS you must indicate whether the
pump is free of substances damaging to health, or whether it is contaminated. If it is contaminated, you should also
indicate the nature of hazard. For this you must use the form which will be provided upon request. Call TVBS Service
Department for authorization to return any pump for service. No pump will be accepted without pre-authorization. TVBS
will return any pump received without a “Declaration of Contamination” to the sender’s address.
WARNING: The pump must be packaged in such a way that it will not be damaged during shipping, and that no harmful
substances can escape from the package.

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WARNING: When disposing of used oil, please observe the relevant environmental regulations.
Due to the design concept, KSVB pumps require very little maintenance under normal operating conditions. The work
required is described in the following sections.
IMPORTANT:
• All work must be done by suitably trained personnel.
• Maintenance or repairs carried out incorrectly will affect the life and performance of the pump and may cause
problems when filing warranty claims.
• The vacuum pump must be switched off and secured against accidental switch-on for all maintenance jobs.
• All work must be done by suitably trained personnel. The following maintenance-schedule shows the regular
maintenance periods for an average use of the pump.
• Unfavorable ambient conditions and/or aggressive media may significantly reduce the maintenance intervals.
MAINTENANCE SCHEDULE CHART
MAINTENANCE JOB FREQUENCY SECTION
Check the oil level Daily 3.1
Check the oil condition Depends on process 3.2
First oil change After 150 hours of operation 3.2
Subsequent oil changes Every 500 hours of operation or 3 months 3.2
Replace oil filter At each oil change 3.2
Replace the exhaust filter If oil mist at exhaust or annually 3.3
Clean the dirt trap Monthly 3.5
Check the anti-suckback valve Annually 3.6
To simplify the maintenance work, we recommend combining several jobs.
3.1 — OIL LEVEL
The oil level should be checked at least once a day. If the oil level is below the “MAX” mark, oil has to be added until the
level reaches the mark. If the oil level is below the “MIN” mark, stop the pump and check it.
The pump’s oil level during operation must always be between the middle and the top edge of the oil-level glass. When
necessary, switch off the pump and add the correct quantity of oil. Overfilling leads to oil losses at high intake pressures.
High oil consumption often indicates that exhaust filters are clogged.
3.2 — OIL CHANGING AND REPLACING THE OIL FILTER

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Oil must be changed after the first 150 operating hours. Further oil changes, depending on operating conditions
(products, vapors, ambient temperature…) must be done every 500 to 1500 operating hours or at least every 6 months.
If there is considerable pollution, it could be necessary to change the oil more frequently. Oil changing must be done with
the pump switched off and still warm. Open the oil drain plug and let the used oil run out into an appropriate container.
Replace the oil drain plug when oil runs slower, start up the pump briefly (5 sec. max) and switch off immediately.
Reopen the oil drain plug and drain the rest of the oil. Some pumps are equipped with an oil filter. In this case, unscrew
the oil filter. Moisten the gasket of the new oil filter with oil and screw it in manually. Before installing the oil drain plug,
check the O-ring and if necessary replace it. Open the oil fill plug and pour in clean oil; reinstall the oil fill plug. The pump
must be rinsed out if there is considerable pollution. Therefore pour in clean oil up to the low edge of the oil-level glass,
let the pump run briefly (for a few minutes) then drain the oil again.
IMPORTANT: When disposing of used oil or exhaust filters, please observe the relevant environmental regulations!
3.3 — EXHAUST FILTERS REPLACEMENT
Oil mist escaping from the exhaust during operation indicates that the filter is probably clogged. Increased energy intake
by the motor could also be the result of a soiled exhaust filter. Open the exhaust flange, take out the old filter and replace
it. Also check the gasket of the exhaust flange and change it if necessary.
3.4 — GAS BALLAST VALVE CLEANING
NOTE: KSVB 25 requires gas ballast replacement.
To clean the gas ballast valve, disassemble the fan cover, and the fan. Unscrew the locking ring. Remove the plug and
the gas ballast valve by using a long M10 screw (or 3/8” 16 UNC) screwed in the valve and pulling on the screw. Clean
the membrane, the seat and the RILSAN tube. Reassemble in the reverse sequence.
3.5 — INLET FLANGE DIRT TRAP CLEANING
To clean the inlet flange dirt trap, disconnect the inlet flange and clean the screen with compressed air or an appropriate
solvent.
3.6 — ANTI-SUCK BACK VALVE CHECKING
The anti-suck back valve should be checked at the same time as the inlet flange dirt trap and if dirty, be cleaned with an
appropriate solvent. Also check for damage on the gasket of the valve.
3.7 — FAN COVER CLEANING
A dirty fan cover may lead to overheating of the motor and the pump. Pull off the cover and clean it with a blast of air.
Before starting the pump again, be sure that the cover has been reassembled.
3.8 — CHECKING THE FLOAT VALVE
When replacing the exhaust filter, check the cleanliness and the proper operation of the float valve. After having
disassembled the exhaust flange, remove the centering pin, pull on the float valve, clean the nozzle and check that
the float itself oscillates freely around its axle and that the valve is tight. Clean the float chamber of the oil casing.
Reassemble in the reverse sequence.
3.9 — BREAKDOWN ANALYSIS
If you have a breakdown, please contact the Tuthill Vacuum & Blower Systems Service Department.
SECTION 4 — SPARE PARTS
To guarantee safe operation of the vacuum pump, only original spare parts and accessories should be used. When
ordering spare parts and accessories, always state pump type and serial number. Utilizing the OPERATING DATA form

13
on the inside back cover of this manual can save you time and expense by including this reference identification on any
replacement part orders, or if you require service or application assistance.
Listed below are consummables and main spare parts kits for KSVB pumps. These are usually available from TVBS’s
service centers, consult factory for details. We recommend using these kits which have been defined to allow an
optimal maintenance or repair. Individual spare parts may require longer delivery time.
• Oil filter (depending on the part number)
• Exhaust demisters
• Kinney AX Oil (Special oils please refer to the specific notice of the pump or contact TVBS).
• Service kit
• Set of seals
• Repair kit
If the pump has to be returned to TVBS Service Department for repair, you have to attach the form “Declaration
of Contamination of Vacuum Equipment and Components.” The Service Department of TVBS will send it to you on
request. TVBS will return to the sender’s address any material received without this declaration. For the transport, the
pump and its components must be packaged in such a way, that it will not be damaged during shipping, and that no
harmful substances can escape from the package.
TROUBLESHOOTING GUIDE
SYMPTOM POSSIBLE CAUSE REMEDY
Pump will not start
Pump is not connected correctly Connect the pump correctly
Motor protection switch incorrectly set Set motor protection switch properly
Operating voltage does not match motor Replace Motor
Motor is malfunctioning Replace Motor
Oil Temperature is below 54° F (12° C) Heat pump or pump oil or use different grade
Oil is too viscous Use appropriate oil grade
Exhaust filter / exhaust line is clogged Replace filter or clean exhaust line
Pump has seized (jammed) Repair pump
Pump does not reach ultimate
pressure
Gauge is unsuitable Use correct gauge
External leak — piping fittings loose Check and tighten all fittings
Float valve does not close Repair the valve
Malfunctioning of anti-suckback valve Repair the valve
Malfunctioning of exhaust valve Repair the valve
Inadequate lubrication due to:
• Unsuitable or contaminated oil
• Clogged oil filter
• Clogged oil lines
• Change or degas the oil
• Replace the oil filter
• Clean the oil lines and oil case
Vacuum lines are dirty Clean vacuum lines
Pump is too small Check required pump capacity and replace the pump as
necessary.
Pumping speed is too low
Dirt trap in the intake port is clogged Clean the dirt trap. Precaution: Install dust filter in the intake
line
Exhaust filter is clogged Install new filter elements
Connecting lines are too narrow or too long Use adequately wide and short connecting lines
Anti-suckback valve is hard to open Check spring for free length
After switching off pump under
vacuum, pressure in system
rises too fast
System has a leak Check the system
Malfunctioning of the anti-suckback valve Repair the valve

14
KSVB-25 — EXPLODED VIEW

15
KSVB-25 — PARTS LIST
ITEM
#DESCRIPTION QTY
1 Screw 3
2 Screw 10
3 End Plate with Gas Ballast 1
3 End Plate without Gas Ballast 1
4 Gas Ballast Screw Kit 1
5 Gas Ballast Silencer 1
6 Rotor 1
7 Vane set of 3 3
8 Screw 2
9 Washer 2
10 O-Ring 2
11 O-Ring 2
12 Pump Cylinder 1
13 Rubber Mount 2
14 Screw 2
15 Supporting Plate 1
16 Rubber Mount 1
17 Motor 1 ph 1
17a Capacitor 1
17b Capacitor 1
17c Terminal Box 1
17d Terminal Board 1
18 Fan 1
19 Fan Cover 1
20 Key 1
21 Ball Bearing 1
22 Radial Shaft Seal 1
23 End Bearing Plate 1
24 Inlet Spring 1
25 Anti-suckback Valve 1
26 O-Ring 4
27 Inlet Adapter 1
ITEM
#DESCRIPTION QTY
28 Dirt Trap 1
29 Intake Flange 1
29 Intake Flange 1
30 Screw 4
31 O-Ring 1
32 Reduction + O-Ring 1
32 Reduction 1
33 Valve Plate 1
34 Valve Stop 1
35 Centering Pin 2
36 Washer 1
37 Nut 2
38 Flat Gasket 1
39 Grid 1
40 O-Ring 2
41 Plug Slotted 2
42 Exhaust Flange 1
42 Exhaust Flange 1
43 Spring Unit 1
44 Exhaust Filter 1
45 Flat Gasket 1
46 Oil Return Screw 1
47 O-Ring 1
48 Oil Level Glass 1
49 Float Compl. 1
49a O-Ring 1
49b Oil Return Valve Seal 1
50 Oil Casing 1
50a Locking Screw 1
51 Lifting Lug 1
52 Plug + O-Ring 2

16
KSVB-40 — EXPLODED VIEW

17
KSVB-40 — PARTS LIST
ITEM
#DESCRIPTION QTY
1 Module 1
2 Screw 3
3 Protective Cover 1
4 Cooling Fan 1
5 Screw 8
6 Washer 10
7 Radial Shaft Seal 1
8 End Plate without GB 1
8 End Plate with GB 1
9 Screw 1
10 Screw 1
11 Gas Ballast Valve 1
11a O-Ring 1
11b O-Ring 2
11c Spring 1
11d Washer 1
11e Locking Ring 1
12 Gas Ballast 1
12 Gas Ballast 1
12a Membrane 1
13 Rilsan Tube 1
14 Clamping Ring 1
15 Rotor with Rings 1
15a Rotor Ring 1
15b Rotor Ring 1
15c Rotor Ring 1
16 Vane set of 3 1
17 O-Ring 2
18 O-Ring 1
19 Rubber Mount 4
20 Hexagon Flange Unit 4
21 Pump Cylinder 1
21a Centering Pin 2
22 Radial Shaft Seal 1
23 Motor
23a Electrical Rotor 1
23b Motor Ring 1
23c Screw 1
23d Tie Rod (Set of 4) 1
23e Terminal Box 1
23f Terminal Board 1
24 Fan 1
25 Fan Cover 1
26 Lifting Lug 1
ITEM
#DESCRIPTION QTY
27 O-Ring 1
28 Spring 1
29 Intake Valve 1
30 Intake Flange 1
31 O-Ring 1
32 O-Ring 1
33 Filter 1
34 Locking Screw 4
35 Intake Flange 1
36 Intake Flange 1
37 Washer 4
38 Nut 8
39 Oil Filter 1
40 Nipple 1
41 Screw 4
42 Oil Filter Holder 1
43 O-Ring 1
44 Flat Gasket 1
45 Screw 4
46 Valve Stop 1
47 Valve 1
48 Oil Level Glass 1
49 Oil Recovery Pipe 1
50 Plug + O-Ring 1
50a O-Ring 1
51 Exhaust Flange 1
51 Exhaust Flange 1
52 Spring Unit 1
53 Exhaust Filter 1
54 Centering Pin 1
55 Flat Gasket 1
56 Float Compl. 1
56a Oil Return Valve Seal 1
56b O-Ring 1
57 Oil Casing with oil Filter 1
57 Oil Casing without oil Filter 1
57a Plug + Gasket 2
57 b O-Ring 2
57c Locking Screw M8x25 4
57d Grid 1
58 Screw 4
59 Plug + O-Ring 1
59a O-Ring 1

18
KSVB-65 — EXPLODED VIEW

19
KSVB-65 — PARTS LIST
ITEM
#DESCRIPTION QTY
1 Module Cover 1
2 Screw 3
3 Protective Cover 1
4 Screw 1
5 Turbine 1
6 Screw 8
7 Washer 10
8 Radial Shaft Seal 1
9 End Plate without Gas Ballast 1
9 End Plate with Gas Ballast 1
10 Screw 1
11 Screw 1
12 Gas Ballast Valve 1
12a O-Ring 1
12b O-Ring 2
12c Spring 1
12d Washer 1
12e Locking Ring 1
13 Gas Ballast 1
13 Gas Ballast 1
13a Membrane 1
14 Rilsan Tube 1
15 Clamping Ring 1
16 Rotor with Rings 1
16a Rotor Ring 1
16b Rotor Ring 1
16c Rotor Ring 1
17 Vane set of 3 1
18 O-Ring 2
19 O-Ring 1
20 Rubber Mount 4
21 Hexagon Flange Nut 4
22 Pump Cylinder 1
22a Centering Pin 2
23 Radial Shaft Seal 1
24 Motor 1
24a Electrical Rotor 1
24b Motor Ring 1
24c Terminal Box 1
24d Terminal Board 1
25 Screw
26 Tie Rod (Set of 4) 1
27 Fan 1
28 Fan Cover 1
ITEM
#DESCRIPTION QTY
29 Lifting Lug 1
30 O-Ring 1
31 Spring 1
32 Intake Valve 1
33 Intake Flange 1
34 O-Ring 1
35 O-Ring 1
36 Filter 1
37 Locking Screw 4
38 Intake Flange 1
38 Intake Flange 1
39 Washer 4
40 Nut 8
41 Oil Filter 1
42 Nipple 1
43 Screw 4
44 Oil Filter Holder 1
45 O-Ring 1
46 Flat Gasket 1
47 Screw 4
48 Valve Stop 1
49 Valve 1
50 Oil Level Glass 1
51 Oil Recovery Pipe 1
52 Plug + O-Ring 1
52a O-Ring 1
53 Exhaust Flange 1
53 Exhaust Flange 1
54 Spring Unit 1
55 Exhaust Filter 1
56 Centering Pin 1
57 Flat Gasket 1
58 Float Compl. 1
58a Oil Return Valve Seal 1
58b O-Ring 1
59 Oil Casing with Oil Filter 1
59a Plug + Gasket 2
59b O-Ring 1
59c Locking Screw M8x25 4
59d Grid 1
60 Screw 4
61 Plug + O-Ring 1
61a O-Ring 1

20
KSVB-100 — EXPLODED VIEW