Tuthill KINNEY KD Series User manual

KINNEY®
Rotary Piston Vacuum Pump
KD Series
Models
KD-30
KD-50
OPERATOR’S MANUAL
Manual 1808 Rev B p/n 001808 0000
Tuthill Vacuum & Blower Systems tuthillvacuumblower.com 800.825.6937
WARNING: Do Not Operate Before Reading Manual
Operator’s Manual: Tuthill KINNEY®KD Series Rotary Piston Vacuum Pump
Copyright © 2019 Tuthill Vacuum & Blower Systems
All rights reserved. Product information and specications subject to change.

Disclaimer Statement:
All information, illustrations and specications in this manual are based on the latest information available at
the time of publishing. The illustrations used in this manual are intended as representative reference views only.
Products are under a continous improvement policy. Thus, information, illustrations and/or specications to
explain and or exemplify a product, service or maintenance improvement may be changed at any time without
notice.
Rights Reserved Statement:
No part of this publication may be reproduced or used in any form by any means - graphic, electronic or me-
chanical, including photocopying, recording, taping or information storage and retrieval systems - without the
written permission of Tuthill Vacuum & Blower Systems.
Copyright © 2019 Tuthill Vacuum & Blower Systems
All rights reserved. Product information and specications subject to change.
The employees of Tuthill Vacuum & Blower Systems thank you for your purchase!
Tuthill Vacuum & Blower Systems proudly manufactures
Kinney®vacuum pumps and M-D PneumaticsTM blowers and
vacuum boosters in Springeld, Missouri, USA. We bring
100+ years of engineering experience and solid, hands-
on care to help customers keep their processes running.
Your satisfaction is important to us so please take time to
provide your Tuthill sales representative with performance
feedback. We love to hear from our customers!
Tuthill is a family owned business that was started by James
B. Tuthill in 1892. At that time, Tuthill manufactured com-
mon brick to Chicago construction companies who were
fueling the city’s rapid expansion. Fast forward to today
and Tuthill now serves sustaining, global markets like agri-
culture, chemical, construction, energy, food and beverage,
pharmaceuticals and medical, transportation, and utilities.
While the company has changed in what it manufactures,
one thing remains throughout every Tuthill line of business
– we are a company with HEART. Our slogan is “Pump Your
Heart Into It” and everyday our employees do just that as
they represent the Tuthill brand and dare to make better.
Thank you for making Tuthill Vacuum & Blower Systems
part of your company’s process! FIND OUT MORE AT
TUTHILL.COM
A company with heart
right from the start.

i
Manual 1808 Rev B p/n 001808 0000
Table of Contents
Introduction .................................................................................. 1
Applicable Documentation ................................................................... 1
Scope of Manual................................................................................... 1
Conventions, Safety and Data Plate........................................... 2
Graphic Conventions Used in this Manual............................................ 2
Safety Instruction Tags.......................................................................... 2
Safety Precautions for Rotary Piston Pumps......................................... 3
Data Plate.............................................................................................. 4
Lifting ............................................................................................ 5
Description ................................................................................... 6
General ................................................................................................. 6
Pump Components ............................................................................... 6
Operating Cycle.................................................................................... 8
Sealing and Lubricating........................................................................ 8
Oil Types ............................................................................................... 8
Installation .................................................................................... 9
General ................................................................................................. 9
V-Belt Drive............................................................................................ 9
Direct Drive ......................................................................................... 10
Discharge Piping ................................................................................ 10
Inlet Piping .......................................................................................... 10
Vacuum Gauges ................................................................................. 11
Electrical Connections ........................................................................ 11
Operation .................................................................................... 12
General ............................................................................................... 12
Filling Pump with Oil............................................................................ 12

ii
Table of Contents
Manual 1808 Rev B p/n 001808 0000
Pre-Start Checks................................................................................. 12
Starting................................................................................................ 12
Stopping.............................................................................................. 13
Gas Ballast.......................................................................................... 13
Maintenance ............................................................................... 14
General ............................................................................................... 14
Changing Oil ....................................................................................... 14
V-Belts ................................................................................................. 14
Gear Drive Units.................................................................................. 14
Draining and Refilling Oil .................................................................... 14
Bearing Lubrication............................................................................. 15
Cleaning.............................................................................................. 15
Oil Separator ....................................................................................... 15
Disassembly / Assembly ........................................................... 17
Disassembly........................................................................................ 17
Reassembly......................................................................................... 17
Troubleshooting......................................................................... 19
Starting Troubles or Stalling................................................................ 19
Checking Pump Performance............................................................. 19
Pump Leaks ........................................................................................ 20
Oil Contamination................................................................................ 21
Discharge Valves ................................................................................ 21
Shaft Seal ............................................................................................ 22
Replacement Parts..................................................................... 25
General ............................................................................................... 25
Spare Parts ......................................................................................... 25
KD-30A Exploded View Drawing ........................................................ 26
KD-30A Parts List................................................................................ 27
KD-50B Exploded View Drawing ........................................................ 28
KD-50B Parts List................................................................................ 29
Declaration of Incorporation..................................................... 30
Warranty – Vacuum Products ................................................... 31
Operating Data Form / Product Registration........................... 32

Manual 1808 Rev B p/n 001808 0000 1
CONGRATULATIONS on the purchase of a new
KINNEY®KD Single-Stage, Duplex Rotary Piston
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.
This manual applies to Kinney Vacuum models
KD-30 and KD-50. Be thoroughly familiar with
these instructions before attempting to install,
operate, or repair this unit. Consult Tuthill Vacuum
& Blower Systems when problems arise that
cannot be resolved after reading this manual.
Always include pump nameplate information when
ordering parts or components.
KINNEY KD vacuum pumps are built to exacting
standards and, if properly installed and maintained,
will provide many years of reliable service. Read
and follow every step of these instructions when
installing and maintaining the pump.
CAUTION
!
Read manual before operation or bodily harm
may result. Attention should be given to the
safety related sections of this manual.
OTE:NRecord the pump model and serial
numbers of the machine in the
OPERATING DATA FORM on the inside
back cover of this manual. Use this
identication on any replacement part
orders, or if service or application
assistance is required.
APPLICABLE DOCUMENTATION
The applicable documents associated with this
manual are:
• EN 1012-1:1996 - Compressors and vacuum
pumps - Safety Requirements - Part 2: Vacuum
Pumps
SCOPE OF MANUAL
The scope of this manual includes the following
components as offered by Tuthill Vacuum & Blower
Systems: Rotary Piston Pump.
INTRODUCTION
01

Manual 1808 Rev B p/n 001808 0000
2
GRAPHIC CONVENTIONS USED IN
THIS MANUAL
The following hazard levels are referenced within
this manual:
DANGER
!
Indicates a hazardous situation that, if not
avoided, will result in death or serious injury.
WARNING
!
Indicates a hazardous situation that, if not
avoided, could result in death or serious
injury.
CAUTION
!
Indicates a hazardous situation that, if not
avoided, could result in minor or moderate
injury.
Indicates a situation that can cause damage
to the engine, personal property, and/or
the environment or cause the equipment to
operate improperly.
OTE:NIndicates a procedure, practice, or
condition that should be followed in
order for the equipment to function in the
manner intended.
SAFETY INSTRUCTION TAGS
WARNING
!
Do not operate without belt
guard.
CAUTION
!
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.
The above safety instruction tags were
permanently afxed 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.
CONVENTIONS, SAFETY AND DATA PLATE
02

Manual 1808 Rev B p/n 001808 0000 3
02
Conventions, Safety and Data Plate
SAFETY PRECAUTIONS FOR
ROTARY PISTON PUMPS
Please read the following safety information before
operating the vacuum pump.
• Do not operate the pump without the beltguard
properly attached.
• Disconnect the pump from the electrical supply
at the main disconnect before removing the
beltguard. Replace the beltguard before
reconnecting the power supply. Operating the
pump without the beltguard secured in place
exposes people in the vicinity of the pump to risk
from rotating drive parts.
• Do not operate the pump with oxygen-enriched
gas in the suction line, where the proportion
of oxygen exceeds 21%, unless the pump has
been prepared with an inert uid suitable for the
application. Pumping oxygen-enriched gases
with mineral oil or other non-inert uids can
cause an explosion in the pump, resulting in
damage or injury.
• Take precautions to avoid prolonged or
excessive exposure to oil mist or process
materials from the discharge of the pump. Do
not allow the pump to discharge into a closed
room or a room without adequate ventilation.
Always use a discharge oil mist eliminator
unless the pump discharge is vented to the open
air. Venting the outlet of the oil mist eliminator to
the open air is highly recommended.
• Do not restrict the pump discharge line in any
way or place any valves in the discharge line.
The vacuum pump is a compressor and will
generate high pressures without the motor
stalling when operated at low suction pressures.
Excessive pressure buildup could cause
damage or injury.
• Disconnect the pump from the electrical supply
at the main disconnect before dismantling
or servicing the pump. Make sure the pump
is completely reassembled, the beltguard is
replaced, and all drain and ll valve and plugs
are closed before reconnecting the power
supply.
• Accidental starting or operation of the pump
while maintenance is in progress may cause
injury or damage.
• Lift only with the lifting eyebolts supplied with
the pump. Do not lift equipment attached to the
pump with the eyebolts supplied.
• 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 may
cause surface temperatures up to 220°F
(104°C).
• GEAR DRIVES UNITS: During operation,
gear drive units may become sufciently hot to
cause skin burns. Take care to avoid accidental
contact. After extended running, the lubricant in
gear units and lubrication systems may reach
temperature sufcient to cause burns. Allow
equipment to cool before servicing or performing
adjustments.

Manual 1808 Rev B p/n 001808 0000
4
02
Conventions, Safety and Data Plate
DATA PLATE
MODEL NUMBER: The specic model of the blower
SERIAL NUMBER: Unique to each blower
YEAR: Year of manufacture
This manual describes instructions and precautions
to be observed in the handling and maintenance
of Tuthill Vacuum & Blower Systems Kinney
KD Rotary Piston Vacuum Pumps. It is strongly
recommended that those who operate or maintain
the pump read this manual carefully prior to pump
operation, to ensure personal safety and pump life.
WARNING
!
Keep body & clothing away
from machine.
During operation, keep body
and clothing away from inlet
and outlet of the pump.
WARNING
!
Do not operate without guard in
place. Assure that the guards
are in place and secure prior to
operation.
CAUTION
!
Hearing protection is required
while the pump is in operation.
At ultimate pressure noise
levels are 75 dBA, however
due to process or installation
conditions noise levels may be
higher.
CAUTION
!
Do not touch hot surfaces.
Do not touch the vacuum pump
while it is in operation and
assure that the pump is cool
before touching, when not in
operation.

Manual 1808 Rev B p/n 001808 0000 5
LIFTING
03
WARNING
!
The vacuum pump must be handled using
an appropriate device such as a fork truck
or appropriate lifting device. See Table 4-2
on page 7 for approximate weights. Care
should be taken to assure pump does not
overturn during handling and installation.

Manual 1808 Rev B p/n 001808 0000
6
GENERAL
The visual difference between the two pumps is
in the oil separators. Internally, the pistons, cams,
and slide pins of the KD-50 are treated to be able
to tolerate the increased speed. Both pumps are
air-cooled rotary piston type, consisting of two
rotary pistons pumping in parallel. The pumps
attain a low ultimate pressure of less than 10
microns (1 x 10 in. Torr McLeod gauge). The
rugged, simple design ensures dependable service
under the most severe applications without costly
or complicated maintenance. The ruggedness
of the pump is evidenced by all cast-iron rotary
internals, including the cast-iron sleeve bearings.
The external drive shaft bearing is a sealed
grease packed bearing. The mechanical shaft seal
contains viton elastomer, which is suitable for most
chemical as well as high-temperature operations.
PUMP COMPONENTS
All components are easily serviced and no special
tools are required. The reliable, leak-free shaft seal
requires no adjustment or maintenance. The gas
ballast valve regulates the vapor handling capacity
of the pump, decelerates contamination buildup
in the oil, and quiets the discharge valve noise
of the pump. The oil separator of the KD pump is
equipped with a mist eliminator to provide ltering
of the exhaust, thereby resulting in a cleaner pump
area. The pump specications are shown in Table
4-1 and Table 4-2 on page 7.
DESCRIPTION
04