M-D Pneumatics
Rotary Positive Displacement Blower
WARNING: Do Not Operate Before Reading Manual
CP Series
OPERATOR’S MANUAL
Models
2002 3002 4002 5003 6005 7006
™
Manual 2017 Rev C p/n 2017
2004 3003 4005 5006 6008 7011
3006 4007 5009 6015 7018
Grease Lubrication / Air Service
Splash Lubrication / Air Service
All rights reserved. 3roduct inIormation and speci¿cations subMect to change.
Operator’s Manual: Tuthill CP Series Rotary Positive Displacement Blower
Tuthill Vacuum & Blower Systems www.tuthillvacuumblower.com 800.825.6937
Copyright © 2018 Tuthill Vacuum & Blower Systems
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 continuous 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
mechanical, including photocopying, recording, taping or information storage and retrieval systems – without
the written permission of Tuthill Vacuum & Blower Systems.
Copyright © 2018 Tuthill Vacuum & Blower Systems
All rights reserved. Product information and speci¿ cations subject to change.
Table of Contents
Introduction .................................................................................. 1
Applicable Documentation ................................................................... 1
Scope of Manual ................................................................................... 1
Conventions and Data Plate ....................................................... 2
Graphic Conventions in this Manual ..................................................... 2
Data Plate .............................................................................................. 3
Lifting ............................................................................................ 5
Description ................................................................................... 6
Flow by Direction and Rotation ............................................................. 7
Specifi cations ........................................................................................ 8
Installation ...................................................................................11
General ............................................................................................... 11
Location .................................................................................... 13
Foundation ................................................................................ 13
Blower Air Intake ...................................................................... 13
Soft Foot ................................................................................... 14
Safety .................................................................................................. 14
Lubrication .......................................................................................... 15
Filling Procedure ...................................................................... 16
Manual 2017 Rev C p/n 2017
i
Table of Contents
Frequently Asked Questions Regarding Lubrication ............... 17
Hazards Associated With Breakdown or
Ignition of Lubrication .............................................................. 17
Release Lubricated Bearings –
Grease Lubrication Series Only ............................................... 17
Piping Connections ............................................................................. 18
Hazards Associated With Hazardous Process Fluids .............. 18
Blockage or Restriction ............................................................ 18
Motor Drives ........................................................................................ 19
Direct Coupled ......................................................................... 19
V-Belts ...................................................................................... 19
Setting V-Belt Tension ............................................................... 20
V-Belt Troubleshooting ............................................................. 21
Motor and Electrical Connections ....................................................... 22
Operation .................................................................................... 23
General ............................................................................................... 23
Start-Up Checklist ............................................................................... 24
Stopping .............................................................................................. 25
Recommended Shutdown Procedure to Minimize
Risk of Freezing or Corrosion ............................................................. 26
Maintenance ............................................................................... 27
General ............................................................................................... 27
Regular Maintenance .......................................................................... 27
Spare Parts ......................................................................................... 28
Factory Service and Repair ................................................................ 28
Long-Term Storage ............................................................................. 29
ii
Manual 2017 Rev C p/n 2017
Table of Contents
Disassembly and Reassembly .................................................. 30
Disassembly of Blower ....................................................................... 30
Reassembly of Blower ........................................................................ 33
Adjusting Rotor Interlobe Clearance ........................................ 36
Lubrication, Final Assembly and Mounting .............................. 37
Troubleshooting ......................................................................... 38
Assembly Clearances ................................................................ 40
Torque Chart ....................................................................................... 41
Recommended Lubricants ........................................................ 42
Recommended Lubricants for Rotary Blowers
and Vacuum Boosters ......................................................................... 42
Special Tool Drawings ............................................................... 44
Parts List ..................................................................................... 46
Cutaway Drawing for Grease Lubrication / Air Service ...................... 46
Parts List for Model CP Series – Grease Lubrication / Air Service ..... 47
Cutaway Drawing for Splash Lubrication / Air Service ....................... 48
Parts List for Model CP Series – Splash Lubrication / Air Service ...... 49
Declaration of Incorporation ..................................................... 51
Warranty – Blower Products ..................................................... 52
Operating Data Form / Product Registration ........................... 53
Manual 2017 Rev C p/n 2017
iii
Table of Contents
iv
Manual 2017 Rev C p/n 2017
01
INTRODUCTION
CONGRATULATIONS on the purchase of a new
CP Series Rotary Positive Displacement Blower
from Tuthill Vacuum & Blower Systems. Please
examine the blower for shipping damage, and if
any damage is found, report it immediately to the
carrier. If the blower 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 the blower is stored outdoors, be
sure to protect it from weather and corrosion.
CP Series blowers 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 blower.
OTE: N Record the blower 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:
• 2006/42/CE – Machinery Directive
• EN 1012-1:1996 - Compressors and vacuum
pumps - Safety Requirements - Part 1:
Compressors
SCOPE OF MANUAL
The scope of this manual and the Declaration of
Incorporation includes the bare shaft rotary positive
displacement blower.
Manual 2017 Rev C p/n 2017
1
02
CONVENTIONS AND DATA PLATE
GRAPHIC CONVENTIONS IN THIS
MANUAL
This manual is the result of a risk assessment
according to the applicable documents referenced
in Applicable Documentation on page 1. 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.
OTE: N Indicates a procedure, practice, or
condition that should be followed in
order for the equipment to function in the
manner intended.
CAUTION
!
Read manual before operation
or bodily harm may result.
Attention should be given to the
safety related sections of this
manual.
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.
2
Manual 2017 Rev C p/n 2017
DATA PLATE
q
g
02
Conventions and Data Plate
REBMUN LAIRESREBMUN LEDOM
Tuthill Vacuum & Blower Systems
4840 West Kearney Street
Springfield, Missouri USA 65803
READ INSTRUCTION MANUAL BEFORE OPERATION OR BODILY HARM MAY RESULT
MAX RPM
WARNING WARNING CAUTION CAUTION
Keep body & clothing away
from machine openings.
http://www.tuthill.com
Do not operate without
uards in place.
(
Figure 2-1 – General Operation and Symbols on Data Plate
The following information is contained on the data
plate:
WARNING
!
Keep body and clothing away
from machine.
During operation, keep body
and clothing away from inlet
and outlet of the blower.
Hearing protection
re
uired.
!
Do not touch hot surfaces.
The upper limit of the blower
operation is 400°F (205°C). Do
not touch the blower while it is
in operation and assure blower
is cool when not in operation.
CAUTION
Do not touch hot
surfaces.
YEARMAWP
AS
U eht ni edaM7396-528 )008
WARNING
!
Do not operate without guards
in place.
CAUTION
!
Hearing protection is required
while the blower is in operation.
Noise levels may reach as high
as 81 dBA.
Manual 2017 Rev C p/n 2017
3
02
Conventions and Data Plate
MODEL NUMBER: The speci¿ c model of the blower
SERIAL NUMBER: Unique to each blower
YEAR: Year of manufacture
MAWP: Maximum Allowable Working Pressure
The standard MAWP is per Table 4-2 – Maximum Operating Limits on page
9. The MAWP shall not be exceeded.
4
Manual 2017 Rev C p/n 2017
WARNING
!
The blower must be handled using an
appropriate device such as a fork truck or
appropriate lifting device. See Table 4-1 on
page 8 for approximate weights. Care
should be taken to assure blower does not
over-turn during handling and installation.
03
LIFTING
Manual 2017 Rev C p/n 2017
5
04
DESCRIPTION
Refer to speci¿ c data sheets for À ow capacities
and vacuum capacities.
OTE: N Refer to diagrams in this manual for
proper rotation and orientation in inlet
and discharge.
Tuthill Vacuum & Blower Systems CP Series model
rotary lobe blowers are positive displacement type
units, whose pumping capacity is determined by
size, operating speed, and differential pressure
conditions. Blowers employ rotors rotating in
opposite directions within a housing closed at the
ends by end plates.
The inlet to the discharge is sealed with operating
clearances that are very small. Internal lubrication
is not needed, as there is no moving contact.
Clearances between the rotors during rotation are
maintained by a pair of accurately machined helical
timing gears, mounted on the two shafts extended
outside the air chamber. The intermeshing rotary
lobes are designed to rotate and trap air or gas
between each rotor and the housing. As the rotor
lobes rotate past the edge of the suction port, the
trapped air or gas is essentially at suction pressure
and temperature. Since the blower is a constant
volume device, the trapped air remains at suction
pressure until the leading rotor lobe opens into the
discharge port. The close clearances between the
rotors inhibit back slippage of the trapped volume
from between the rotors, and the trapped volume
is forced into the discharge piping. Compression
occurs not internal to the blower but by the amount
of restriction, either downstream of the blower
discharge port or upstream of the blower inlet port.
Figure 4-1 illustrates the air movement within the
machine. In addition, the machine can operate in
either direction.
Never attempt to control capacity by means of a
throttle valve in the intake or discharge piping.
This will increase the power load on the drive
system, will increase operating temperatures, and
can overload and/or seriously damage the blower.
Likewise, if the possibility exists that À ow to the
blower inlet may be cut off during normal operation
of a process, install an adequate vacuum relief
valve. A pressure-type relief valve in the discharge
line near the blower is also recommended for
protection against cutoff or blocking in this line.
Use check valves on each blower when more than
one blower is connected to a discharge line.
When a belt drive is used, it is possible to adjust
blower speed to obtain the desired capacity by
changing the diameter of one or both sheaves,
or by using a variable-speed motor pulley. In a
direct-coupled arrangement, a variable-speed
motor or transmission is required. Gas blowers can
use bypasses, but some applications may require
additional cooling. If there is a large volume of
high-pressure air or gas downstream of the blower,
a check valve in the piping downstream of the
blower will protect the blower from overspeeding in
a backward direction upon shutdown.
Consult a Tuthill Vacuum & Blower Systems sales
professional if questions arise.
6
Manual 2017 Rev C p/n 2017
INLET INLET INLET
DISCHARGE DISCHARGE DISCHARGE
Figure 4-1 – General Operation Principle
04
Description
FLOW BY DIRECTION AND
ROTATION
WARNING
!
Refer to diagrams in this manual for
proper rotation and orientation in inlet and
discharge.
INTAKE
DISCHARGE
RIGHT DRIVE
CW ROTATION
RIGHT DRIVE
CCW ROTATION
LEFT DRIVE
CW ROTATION
INTAKEDISCHARGE DISCHARGE
DISCHARGEINTAKE INTAKE
LEFT DRIVE
CCW ROTATION
HORIZONTAL FLOWVERTICAL FLOW
INTAKE
TOP DRIVE
CW ROTATION
DISCHARGE INTAKE
BOTTOM DRIVE
CW ROTATION
DISCHARGE
DISCHARGE
INTAKE DISCHARGE
TOP DRIVE
CCW ROTATION
BOTTOM DRIVE
CCW ROTATION
INTAKE
Figure 4-2 – Flow Direction by Rotation
Manual 2017 Rev C p/n 2017
7
04
Description
SPECIFICATIONS
MODEL
2002
2004
3002
3003
3006
4002
4005
4007
APPROXIMATE OIL CAPACITY
1
VERTICAL FLOW HORIZONTAL FLOW
GEAR
2
END
3.4 oz
(101 mL)
3.4 oz
(101 mL)
6.0 oz
(177 mL)
6.0 oz
(177 mL)
6.0 oz
(177 mL)
8.5 oz
(251 mL)
8.5 oz
(251 mL)
8.5 oz
(251 mL)
DRIVE
3
END
–
–
4.0 oz
(118 mL)
4.0 oz
(118 mL)
4.0 oz
(118 mL)
6.4 oz
(189 mL)
6.4 oz
(189 mL)
6.4 oz
(189 mL)
GEAR
2
END
1.7 oz
(50 mL)
1.7 oz
(50 mL)
3.4 oz
(101 mL)
3.4 oz
(101 mL)
3.4 oz
(101 mL)
5.8 oz
(172 mL)
5.8 oz
(172 mL)
5.8 oz
(172 mL)
DRIVE
END
2.5 oz
(74 mL)
2.5 oz
(74 mL)
2.5 oz
(74 mL)
4.7 oz
(139 mL)
4.7 oz
(139 mL)
4.7 oz
(139 mL)
PORT SIZE
3
–
–
1 in.
(25 mm)
2 in.
(51 mm)
1.25 in.
(32 mm)
2 in.
(51 mm)
2.5 in.
(64 mm)
1.5 in.
(38 mm)
2.5 in.
(64 mm)
3 in.
(76 mm)
MAXIMUM
RPM
5,275 41 lb (19 kg)
5,275 53 lb (24 kg)
3,600 78 lb (35 kg)
3,600 83 lb (38 kg)
3,600 113 lb (51 kg)
3,600 95 lb (43 kg)
3,600 127 lb (58 kg)
3,600 146 lb (66 kg)
APPROXIMATE
WEIGHT
5003
5006
5009
6005
6008
6015
7006
7011
7018
1
2il capacities are based on ¿ lling Irom dry condition. Less oil may be needed depending on emptiness oI oil reservoir(s) aIter draining. Always ¿ ll the
gear housing until oil drips out oI the oil level hole. Replace plugs in their respective holes. )ollowing this procedure will ensure proper oil level.
2
Gear (nd amounts apply to all C3 Series blowers.
3
'rive (nd amounts apply only to Splash Lubrication models.
18.3 oz
(541 mL)
18.3 oz
(541 mL)
18.3 oz
(541 mL)
25.5 oz
(754 mL)
25.5 oz
(754 mL)
25.5 oz
(754 mL)
28.7 oz
(849 mL)
28.7 oz
(849 mL)
28.7 oz
(849 mL)
10.2 oz
(302 mL)
10.2 oz
(302 mL)
10.2 oz
(302 mL)
18.0 oz
(532 mL)
18.0 oz
(532 mL)
18.0 oz
(532 mL)
–
–
–
7.1 oz
(210 mL)
7.1 oz
(210 mL)
7.1 oz
(210 mL)
16.9 oz
(500 mL)
16.9 oz
(500 mL)
16.9 oz
(500 mL)
20.3 oz
(600 mL)
20.3 oz
(600 mL)
20.3 oz
(600 mL)
5.4 oz
(160 mL)
5.4 oz
(160 mL)
5.4 oz
(160 mL)
9.0 oz
(266 mL)
9.0 oz
(266 mL)
9.0 oz
(266 mL)
–
–
–
2.5 in.
(64 mm)
4 in.
(102 mm)
4 in.
(102 mm)
3 in.
(76 mm)
5 in.
(127 mm)
6 in.
(152 mm)
4 in.
(102 mm)
6 in.
(152 mm)
8 in.
(152 mm)
2,850 152 lb (69 kg)
2,850 185 lb (84 kg)
2,850 222 lb (101 kg)
2,350 250 lb (113 kg)
2,350 310 lb (141 kg)
2,350 456 lb (207 kg)
2,050 425 lb (193 kg)
2,050 555 lb (252 kg)
2,050 675 lb (306 kg)
Table 4-1 – Specifi cations
8
Manual 2017 Rev C p/n 2017
04
Description
MODEL
MAXIMUM
RPM
MAXIMUM
PRESSURE
DIFFERENTIAL*
MAXIMUM VACUUM*
MAXIMUM
TEMPERATURE
RISE*
MAWP
2002 5,275 12 psi (827 mbar) 16 inch-Hg (542 mbar) 225°F (125°C) 15 psi (1,034 bar)
2004 5,275 7 psi (483 mbar) 16 inch-Hg (542 mbar) 185°F (103°C) 15 psi (1,034 bar)
3002 3,600 15 psi (1,034 mbar) 16 inch-Hg (542 mbar) 210°F (117°C) 15 psi (1,034 bar)
3003 3,600 12 psi (827 mbar) 15 inch-Hg (508 mbar) 180°F (100°C) 15 psi (1,034 bar)
3006 3,600 7 psi (483 mbar) 15 inch-Hg (508 mbar) 170°F (94°C) 15 psi (1,034 bar)
4002 3,600 15 psi (1,034 mbar) 16 inch-Hg (542 mbar) 220°F (122°C) 17 psi (1,172 bar)
4005 3,600 10 psi (690 mbar) 16 inch-Hg (542 mbar) 210°F (117°C) 15 psi (1,034 bar)
4007 3,600 7 psi (483 mbar) 15 inch-Hg (508 mbar) 170°F (94°C) 15 psi (1,034 bar)
5003 2,850 15 psi (1,034 mbar) 16 inch-Hg (542 mbar) 195°F (108°C) 17 psi (1,172 bar)
5006 2,850 15 psi (1,034 mbar) 16 inch-Hg (542 mbar) 195°F (108°C) 15 psi (1,034 bar)
5009 2,850 7 psi (483 mbar) 15 inch-Hg (508 mbar) 160°F (89°C) 15 psi (1,034 bar)
6005 2,350 18 psi (1,241 mbar) 16 inch-Hg (542 mbar) 250°F (139°C) 18 psi (1,241 bar)
6008 2,350 14 psi (965 mbar) 16 inch-Hg (542 mbar) 240°F (133°C) 15 psi (1,034 bar)
6015 2,350 7 psi (483 mbar) 12 inch-Hg (406 mbar) 180°F (100°C) 15 psi (1,034 bar)
7006 2,050 15 psi (1,034 mbar) 16 inch-Hg (542 mbar) 235°F (131°C) 17 psi (1,172 bar)
7011 2,050 10 psi (690 mbar) 16 inch-Hg (542 mbar) 210°F (117°C) 15 psi (1,034 bar)
7018 2,050 6 psi (414 mbar) 12 inch-Hg (406 mbar) 120°F (67°C) 15 psi (1,034 bar)
* Maximum conditions based upon 70°F (21°C) inlet temperature and 14.7 psi (1 bar) absolute inlet pressure.
Table 4-2 – Maximum Operating Limits
Manual 2017 Rev C p/n 2017
9
04
Description
WARNING
!
The maximum pressure differential is based
on the difference between the inlet pressure
and the outlet pressure. The maximum
pressure differential shall not be exceeded.
Exceeding the maximum pressure differential
will cause serious damage to the equipment
and could cause bodily injury.
WARNING
!
The maximum allowable working pressure
(MAWP) is based on the absolute pressure of
the blower housing and is NOT the maximum
allowable pressure differential. Exceeding
the MAWP will cause serious damage to the
equipment and could cause bodily injury.
To permit continued satisfactory performance, a
blower must be operated within certain approved
limiting conditions. The manufacturer’s warranty
is, of course, also contingent on such operation.
Maximum limits for pressure, temperature, and
speed are speci¿ ed in Table 4-2 on page 9
for various blower sizes when operated under the
standard atmospheric conditions. Do not exceed
any of these limits.
Specially ordered blowers with nonstandard
construction, or with rotor end clearances
greater than shown in Assembly Clearances
on page 40, will not have the operating
limits speci¿ ed here. Contact your
Tuthill Vacuum & Blower Systems sales
representative for speci¿ c information.
Special attention must be paid when a blower
has a higher than standard ambient suction
temperature. Special recommendations
for operating parameters and/or additional
cooling may be recommended. Consult the
factory or local representative for appropriate
information.
10
Manual 2017 Rev C p/n 2017
05
INSTALLATION
GENERAL
DANGER
!
The blower is not intended to be used
with explosive products or in explosive
environments. The blower is not intended
to be used in applications that include
hazardous and toxic gases. Consult the
factory for support.
DANGER
!
It is the responsibility of the installer to
assure that proper guarding is in place and
compliant with all applicable regulatory
requirements.
WARNING
!
The bare shaft blower can
generate excessive noise.
Methods to reduce the noise
levels by installing inlet and
outlet silencers will be required.
Even with inlet and outlet
silencers, hearing protection
will be required.
WARNING
!
Customers are warned to provide adequate
protection, warning and safety equipment
necessary to protect personnel against
hazards in the installation and operation of
this equipment in the system or facility.
WARNING
!
The standard MAWP is per Table 4-2. The
MAWP shall not be exceeded unless speci¿ c
factory testing of the pressure containing
components of the blower has been
performed.
WARNING
!
Table 4-2 states the maximum operating
speed in RPM (rotations per minute) and
maximum temperature. Do not exceed these
limits. The installation of the blower shall
take these critical operating parameters
into account and adequate control features
implemented.
Manual 2017 Rev C p/n 2017
11
05
Installation
WARNING
!
Upon completion of the installation, and
before applying power, rotate the drive
shaft by hand. It must move freely. If it
does not, look for uneven mounting, piping
strain, excessive belt tension or coupling
misalignment or any other cause of binding.
If blower is removed and still does not move
freely, check inside the blower housing for
foreign material.
Remove the protective covers from the shaft
and inspect for damage.
Carefully check to ensure that no transit damage
has been sustained. If damage has occurred from
shipment, ¿ le a claim with the carrier immediately.
Preserve the shipping container for inspection by
the carrier.
In the event that your unit sustains damage
while being shipped to your facility, do not
return it to the factory without ¿ rst obtaining
shipping instructions from us.
Do not remove protective covers and plugs until
the connections are complete. Mount the blower on
a À at, level surface. Use a baseplate that is rigid,
solidly supported, and structurally sound. Shim
under the legs where necessary so that each leg of
the blower supports an equal share of the blower
weight. This is necessary to prevent twisting of
the blower. Make sure the feet rest evenly on the
mounting surface before fastening down. Twisting
or cramping the blower during mounting will
cause rotor contact and binding during operation,
resulting in a condition called “soft foot.” See
Soft Foot on page 14 for further details and
preventative measures.
A blower that is factory-mounted on a base should
not require such adjustments. However, since
the assembly can become twisted in shipping or
installation, check for soft foot after installing the
base. Shims may be needed for alignment. Loosen
the foot hold-down screws to check foot contact
with the mounting surface. Mount the base on a
solid foundation or heavy À ooring, using shims as
necessary at bolting points to prevent warping the
assembly.
Transmission of small operating vibrations to a
support structure may be objectionable in some
applications. Use of vibration isolators or vibrationabsorbing materials can be effective in overcoming
this transmission. To avoid causing distortion, apply
the treatment under the common motor/blower
base or mounting plate rather than directly under
the feet alone.
Make sure piping is accurately squared with the
blower and supported independently. Stress
imparted from incorrectly aligned piping or
mounting will create problems with bearing and
seal life, possibly leading to premature internal
contact. The blower should sit stress free and
evenly on its supporting surface. Take care
to evenly tighten the mounting bolts to avoid
imparting undue stress into the blower. Stress
can be checked in a free state with feeler stock or
veri¿ ed on a previously installed blower with the
aid of a dial indicator. Spring or gap should be less
than 0.002 in. (0.05 mm).
Use only clean, new pipe and make certain it is
free of scale, cuttings, weld beads, dirt, or any
other foreign material. To guard against damage
to the blower, make sure that an inlet ¿ lter is used.
Clean the ¿ lter of collected debris after 3 hours of
operation and periodically thereafter. See Piping
Connections on page 18 for additional details.
Figure 5-1 shows a typical complete installation
of the blower and accessories. Note the absence
of throttle or shut-off valves in both discharge and
intake piping. If it is possible for airÀ ow to be cut off
in either line, add a pressure and/or vacuum relief
valve. In some installations, it may be desirable to
use only an inlet silencer-cleaner supported directly
from the blower connection. Keep the weight of
accessories and piping to a minimum to prevent
blower casing distortion. If the weight exceeds
10% of blower weight, support the components
independently of the blower and connect them with a
À exible hose or connectors. The approximate weight
of the blower is listed in Table 4-1 on page 8.
12
Manual 2017 Rev C p/n 2017
05
Installation
AIR FILTER
INTAKE SILENCER
FLOW
PRESSURE
RELIEF VALVE
CHECK VALVE
FLEX CONN.
FLOW
PRESSURE GAUGE
DISCHARGE
SILENCER
Figure 5-1 – Typical Blower Installation
A blower may be driven by direct-coupling to
the driver or by V-belt drive for the purpose of
obtaining other speeds within the approved
range. See Motor Drives on page 19 for more
information.
Location
Install the blower in a room or outdoor area that
supplies adequate space and lighting for routine
maintenance. Make sure that indoor installation
areas are well ventilated and kept as cool as
possible, because operating the blower at elevated
temperatures can result in nuisance overload or
temperature shutdowns. An unprotected outdoor
installation is satisfactory only when correct
lubrication for the expected temperatures is
provided, as per Recommended Lubricants on
page 42.
Foundation
The blower does not need a special foundation.
However, it does require a solid, level À oor and
adequate frame support. Bolt the blower system to
the À oor and seal any cracks.
Blower Air Intake
Blowers from Tuthill Vacuum & Blower Systems
are internally and externally treated after factory
assembly and testing to protect against rusting in
normal atmospheric conditions prior to installation.
The maximum period of internal protection
is considered to be 6 months under average
conditions, provided closing plugs and seals are
not removed. Protection against chemical or saltwater atmosphere is not provided. Avoid opening
the blower until ready to begin installation, as
protection will be quickly lost due to evaporation.
For recommended preparations for long-term
storage (longer than 6 months), see Long-Term
Storage on page 29.
To minimize maintenance, supply the blower with
the cleanest air possible. The air must not contain
any À ammable or toxic gases, as the blower will
concentrate these gases. This could result in
damage to the blower and surrounding property
and lead to personal injury or death. Do not block
or restrict the opening of the blower, as the motor
could overheat and fail.
Do not use blowers on explosive or hazardous
gases. Do not exceed the limits described in Table
4-2 on page 9 on performance criteria such as
pressure differential, running speed, and discharge
temperature.
If it is necessary to take air from a remote source,
such as in a vacuum application, make sure the
diameter of the piping is at least equal to the
diameter of the blower inlet. For distances greater
than 20 ft (6 m), enlarge the pipe diameter to
reduce inlet restriction. Excessive restriction will
reduce the ef¿ ciency of the blower and elevate its
discharge temperature. The piping used should
also be corrosion-resistant and free of scale and
dirt. Keep the inlet covered to keep out foreign
objects and rain. Vacuum kits are available.
Manual 2017 Rev C p/n 2017
13
05
Installation
Soft Foot
Soft foot is a condition in which one of the blower
feet does not sit À at on the base. Soft foot is
usually due to irregularities in the surface to which
the blower is mounted. When the bolt on the foot
gets tightened, a slight distortion occurs that can
affect bearing and seal life as well as internal
contact between parts.
ANGULAR
SOFT FOOT
PARALLEL
SOFT FOOT
Figure 5-2 – Illustrations of Soft Foot
1. Place the blower on the base.
2. Check each foot for gaps between the foot and
base (soft foot). Shim as necessary to ¿ ll the
gap within 0.002 in. (0.05 mm).
Figure 5-2 shows the two most common types
of soft foot conditions. If either type is present
at a measurement of more than 0.003 in.
(0.076 mm), the blower may fail prematurely.
3. Tighten all bolts.
SAFETY
Tuthill Vacuum & Blower Systems recommends
the use of relief valves to protect against excessive
pressure or vacuum conditions. Test these valves
at initial start-up to be sure they are properly
adjusted to relieve at or below the maximum
pressure differential rating of the blower.
DANGER
!
It is the responsibility of the
installer to assure that proper
guarding is in place and
compliant with all applicable
regulatory requirements.
DANGER
!
Internal and external rotating
parts of the blower and driving
equipment can produce
serious physical injuries. The
blower should never be run
with the inlet or discharge
piping removed. If it becomes
necessary to inspect the
rotating parts of the blower or
to change V-belts, be absolutely
sure that all power to the motor
controls has been shut off, the
motor controls are locked out,
and properly tagged before
proceeding.
4. Mount a dial indicator on the base contacting
one foot at 12 o’clock position.
5. Loosen the bolt on that foot. Observe indicator
travel and add shims as needed to reduce
“spring” to less than 0.002 in. (0.05 mm).
Repeat steps 4 and 5 on the remaining feet.
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Manual 2017 Rev C p/n 2017
05
Installation
DANGER
!
Assure that properly sized vacuum breaks/
relief valves are used on the inlet side of
the blower. Also assure that properly sized
pressure relief valves are used on the outlet
of the blower. The sizing shall be such to
assure that the proper À ow can be achieved
without exceeding the rated vacuum and
pressure ratings.
DANGER
!
Blower housing and associated
piping or accessories may
become hot enough to cause
major skin burns on contact.
WARNING
!
Use lock out/tag out procedures
to disable the electrical energy
source before any service or
work is done on the blower.
WARNING
!
LUBRICATION
Every blower from Tuthill Vacuum & Blower
Systems is factory-tested, oil-drained, and shipped
dry to its installation point. Fill both independent oil
reservoirs to the proper level before operation.
Shaft bearings at the gear end of the blower are
splash-lubricated by one or both gears dipping into
an oil reservoir formed in the gear end plate and
cover. Shaft bearings at the drive end of the blower
are lubricated by a slinger assembly dipping into
an oil reservoir. Before starting the blower, ¿ ll the
oil sumps as described in Filling Procedure on
page 16.
Add oil to the blower in the quantity listed
inTable 4-1 on page 8. Make sure oil level is
maintained within the notched area of the sight
glass. See Figure 5-3. Lower drive blowers have
“bull’s eye” type oil level gauges. Maintain oil levels
at the center of the glass.
WARNING
!
Never attempt to change or add lubrication
while the blower is running. Failure to heed
this warning could result in damage to the
equipment or personal injury. Oil must be
checked when the blower is NOT running.
Avoid extended exposure in
close proximity to machinery
with high intensity noise levels.
Wear adequate ear protection.
OTE: N Use proper care and good procedures in
handling, lifting, installing, operating, and
maintaining the equipment.
Manual 2017 Rev C p/n 2017
WARNING
!
Properly dispose of the spent lubricants.
Refer to the manufacturer of the lubricant and
any regulations to assure proper and safe
disposal.
WARNING
!
Do not start the blower until you are sure oil
has been put in the gear housing and rear
cover. Operation of the blower without proper
lubrication will cause the blower to fail and
void the warranty.
15
05
Installation
Filling Procedure
Most CP Series blowers are shipped from
the factory in a left hand drive, vertical À ow
con¿ guration. If drive shaft location is changed,
the oil level plugs, sight glasses and breathers
must be relocated to proper positions, as
shown in Figure 5-3. Failure to change plug
location will result in blower failure and void the
product warranty.
See Figure 5-3. See Recommended Lubricants
on page 42 for suggested lubricants and
grease.
1. Remove the ¿ ll plugs or breathers from both
gear end and drive end plates.
2. Slowly pour oil through the ¿ ll until oil appears
in the oil sight glass. Bring the oil level to the
center of the sight glass.
3. Verify oil level is at proper level in both gear
end and drive end sight glasses.
4. Replace the ¿ ll plugs or breathers that were
removed in step 1.
Figure 5-3 – Location of Oil Fill, Drain and Level Gauges on CP Series Blowers
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05
Installation
Frequently Asked Questions Regarding
Lubrication
What is the functional detriment if the “wrong
oil” is used?
The lubricant is selected based on bearing
speed, gear speed, and operating temperature.
If the lubricant is too light, it increases wear by
not separating the sliding surfaces and it will not
remove the heat adequately. If the lubricant is too
thick, the drag in the bearings is increased, causing
them to run hotter. Thicker lubricant will not À ow
as readily into the gears and it will reduce the
available backlash. Lubricants at our conditions are
incompressible.
What is the functional detriment if the oil is not
serviced?
If the lubricant is not serviced at the proper
interval, the shearing action in the bearing and the
gears will begin to take its toll and the lubricant
will thicken. The blower will run hotter and the
wear on moving parts will increase. The lubricant
will generally appear dirtier, caused by material
rubbing off the components. The lubricant will
discolor because of overheating. An indicator of the
breakdown of a lubricant is the increase in the Total
Acid Number (TAN) and a change of 10 percent in
the base viscosity.
Several things are happening as the lubricant
goes through the blower. First, it is absorbing
frictional energy in the form of heat. This heat has
to be dissipated through either surface contact
with cooler materials or in a rest volume of
lubricant. While reducing the friction, the lubricant
is also going through a shearing process and the
molecular structure is broken down.
The result is that the lubricant will begin to thicken
because of the shorter molecular chains and the
drop out of additive packages. The thickened
lubricant will cause more drag, increasing the
friction and heat and further degrading the
lubricant.
Operation of the blower (environment, run time,
speed, and pressure) has a direct effect on duty
cycles. The published cycles are based on worstcase conditions.
Hazards Associated With Breakdown or
Ignition of Lubrication
DANGER
!
There is a risk associated
with the lubrication media
breaking down and resulting
in a hazardous À uid or vapor.
There may also be a hazard
associated with the ignition of
the lubrication media. Refer to
the lubrication manufacturer’s
applicable instruction for safety
precautions.
Release Lubricated Bearings – Grease
Lubrication Series Only
Service the drive end bearing at regular intervals
(see Table 5-1). Use NLGI #2 premium-grade,
petroleum-base grease with high temperature
resistance and good mechanical stability, such as
PneuLube grease, available from a local Tuthill
Vacuum & Blower System professional. Use
a pressure gun to force new grease into each
bearing until traces of clean grease come out of the
relief ¿ tting.
OPERATING HOURS PER DAY
SPEED IN
RPM
750 – 1,000 7 4 2
1,000 – 1,500 5 2 1
1,500 – 2,000 4 2 1
2,000 – 2,500 3 1 1
2,500 – 3,000 2 1 1
3,000 and up 1 1 1
Table 5-1 – Suggested Lubrication Intervals for Grease
Lubricated Bearings
81624
GREASING INTERVALS IN
WEEKS
Manual 2017 Rev C p/n 2017
17
05
Installation
To avoid blowing out the drive shaft seal, do
not grease too rapidly.
OTE: N See Figure 5-3 for locations of grease
¿ ttings and grease reliefs for horizontal
and vertical À ow blowers.
PIPING CONNECTIONS
WARNING
!
Pipe loading on the blower should be
negligible as pipe loading can cause
distortion of the blower. Use proper supports
and pipe hangers to assure that there is no
loading.
Hazards Associated With Hazardous
Process Fluids
DANGER
!
It shall be the responsibility
of the installer to ensure that
piping is adequate, sealing
between pipe joints is adequate
for the process À uids and
proper process and pressure
protection devices are in place.
It is also the responsibility
of the installer to assure that
process gases are not vented
in a manner that would be
hazardous.
Refer to the manufacturer of the
process media to assure that
proper safety precautions are in
place.
Remove the protective covers from the inlet
and outlet ports and inspect for dirt and foreign
material.
Inlet and outlet connections on all blowers are
large enough to handle maximum volume with
minimum friction loss. Maintain same-diameter
piping. Do not support silencers by the blower.
Avoid stress loads and bending moments.
Be certain all piping is clean internally before
connecting to the blower. Place a 16-mesh wire
screen backed with hardware cloth at or near
the inlet connections for the ¿ rst 50 hours of use
until the system is clean. Clean the screen after
3 hours of operation and completely discard it
once the system is clean, as it will eventually
deteriorate and small pieces going into the blower
can cause serious damage. A horizontal or vertical
airÀ ow piping con¿ guration is easily achieved by
rearranging the mounting feet position.
Blockage or Restriction
WARNING
!
Damage to the blower could occur if there is
blockage in the inlet or outlet ports or piping.
Care should be taken when installing the
blower to assure that there are no foreign
objects or restrictions in the ports or piping.
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05
Installation
MOTOR DRIVES
Two drive connections commonly used are direct
drive and V-belt drive.
Direct Coupled
When installing the motor directly to the blower,
align the shafts to the coupling according to the
coupling manufacturer’s instructions. Blowers
shipped with the motor directly coupled and
mounted on a common base have been aligned
prior to shipment. Further alignment is not normally
necessary, but be sure to check the alignment and
make adjustments if necessary prior to starting the
blower.
Coupling halves must correctly ¿ t the blower and
drive shafts so that only light tapping is required to
install each half. The two shafts must be accurately
aligned. A direct-coupled blower and motor must
be aligned with the two shafts having no more than
0.005 in. (13 mm) Total Indicator Reading (TIR).
Make sure the face is aligned within 0.002 in.
(0.05 mm).
Establish proper gap between coupling halves
according to the coupling manufacturer’s
instructions with the motor armature. Proper
gap will minimize the chance for end thrust
on the blower shaft. Re-align and grease all
direct-coupled base-mounted blowers after ¿ eld
installation.
Adjust the belt tension to the manufacturer’s
speci¿ cations using a belt tension tester. Check
new belts for proper tension after 24 hours of run
time. When manufacturer data is not available,
industry guidelines recommend 1/64 in. deÀ ection
for each inch of span (0.157 mm deÀ ection per
centimeter of span) at 8 – 10 lb (3.6 – 4.5 kg) of
force in the center of the belt.
Insuf¿ cient tensioning is often indicated by slipping
(squealing) at start-up. Do not use belt dressing
on V-belts. Keep sheaves and V-belts free of oil
and grease. Remove tension from belts if the
drive is to be inactive for an extended period of
time. For more speci¿ c information, consult the
drive manufacturer. In a V-belt drive, the blower
sheave must ¿ t its shaft accurately, run true, and
be mounted as close to the bearing housing as
possible to minimize bearing loads.
A tight or driving ¿ t will force the drive shaft out of
its normal position and cause internal damage. A
loose ¿ t will result in shaft damage or breaking.
Make sure the motor sheave ¿ ts correctly and is
properly aligned with the blower sheave.
Adjust the motor position on its sliding base
so that belt tension is in accordance with drive
manufacturer’s instructions. Always avoid
excessive belt tension. Recheck tension after
the ¿ rst 10 hours of operation and periodically
thereafter to avoid slippage and loss of blower
speed.
Check the blower after installation and before
applying power by rotating the drive shaft by hand.
V-Belts
If the motor and blower are V-belt connected, the
sheaves on both the motor and blower shafts
should be as close to the shaft bearings as
possible. Blower sheave is not more than 1/4 in.
(6.5 mm) from the blower drive end cover. The
drive sheave is as close to the driver bearing as
possible. Take care when installing sheaves on
the blower and motor shafts. Make sure the face is
accurately in line to minimize belt wear.
Manual 2017 Rev C p/n 2017
If the drive shaft does not rotate freely:
• Look for uneven mounting, piping strain,
excessive belt tension, or coupling misalignment
• Check the blower to make sure oil was added to
the reservoirs
19
05
Installation
Setting V-Belt Tension
Proper belt tension is essential to long blower
life. Figure 5-4, Figure 5-5, and the following
procedure are provided to aid in ¿ eld-adjusting
V-belts (when the blower is so equipped) for
maximum performance. A visual inspection of the
V-belt drive should yield the appearance shown in
Figure 5-4.
Too Tight
Slight Bow
Figure 5-4 – General appearance of a V-belt drive
Too Loose
20”
(50.8 cm)
20/64” = 5/16” (8 mm)
As such, it is recommended to check belt tension
monthly and make any manual adjustments found
necessary.
1. Turn off and lock out power.
2. Remove the belt guard fasteners (if equipped).
3. Remove the belt guard.
4. Check and adjust the belt tension as
necessary. Tension should be 1/64 in.
deÀ ection per inch of span (0.157 mm
deÀ ection per centimeter of span) between
sheaves, with 8 – 10 lb (3.6 – 4.5 kg) force
applied at the center point of the top section of
belt.
5. Install the belt guard, making sure that all drive
components are free of contact with the guard.
6. Install the belt guard fasteners that were
removed in step 2.
7. Unlock the power and start the blower.
8. Resume normal operation.
8-10 lbs.
(3.6-4.5 kg)
Figure 5-5 – Setting of proper tension for a V-belt drive
Factors outside the control of the belt tensioning
system used on an individual blower package
assembly, such as environmental factors and
quality of the belts installed, may contribute to
decreased belt life. Such factors can cause wear
of the belts beyond the ability of the tensioning
system to compensate.
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Manual 2017 Rev C p/n 2017
V-Belt Troubleshooting
PROBLEM POSSIBLE CAUSES SOLUTION
05
Installation
Belts slip (sidewalls
glazed)
Drive squeals
Belt(s) turned over
Mismatched belts New belts installed with old belts Replace belts in matched sets only.
Breakage of belt(s)
Rapid belt wear
Not enough tension Replace belts; apply proper tension.
Shock load Apply proper tension.
Not enough arc of contact Increase center distance.
Heavy starting load Increase belt tension.
Broken cord caused by prying on sheave
Overloaded drive Redesign drive.
Impulse loads Apply proper tension.
Misalignment of sheave and shaft Re-align drive.
Worn sheave grooves Replace sheaves.
Excessive belt vibration
Shock loads Apply proper tension; recheck drive.
Heavy starting loads
Belt pried over sheaves Replace set of belts correctly.
Foreign objects in drives Provide drive guard.
Sheave grooves worn Replace sheaves.
Sheave diameter too small Redesign drive.
Mismatched belts Replace with matched belts.
Drive overloaded Redesign drive.
Belt slips Increase tension.
Sheaves misaligned Align sheaves.
Oil or heat condition Eliminate oil. Ventilate drive.
Replace set of belts and install
correctly.
Check drive design.
Check equipment for solid mounting.
Consider use of banded belts.
Apply proper tension; recheck drive.
Use compensator starting.
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05
Installation
MOTOR AND ELECTRICAL
CONNECTIONS
WARNING
!
The motor and connections shall be protected
to assure that product and environmental
condensation does not come in contact with
the electrical connections.
It is the responsibility of the installer to assure
that the motor is in compliance with the latest
edition of IEC 60204-1 and all electrical
connections are performed per IEC 60204-1,
this includes overcurrent protection.
Wire the motor and other electrical devices, such
as solenoid valves and temperature switch, to the
proper voltage and amperage as indicated on the
nameplate of the component being wired. Turn
the blower by hand after wiring is completed to
determine that there are no obstructions and that
the blower turns freely. Then, momentarily start the
blower to check the direction of rotation. Figure
4-2 shows direction of airÀ ow in relation to rotor
rotation. The airÀ ow direction can be reversed by
reversing the appropriate motor leads.
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06
OPERATION
GENERAL
DANGER
!
The blower is not intended to be used
with explosive products or in explosive
environments. The blower is not intended
to be used in applications that include
hazardous and toxic gases. Consult the
factory for support.
WARNING
!
Do not operate without guards
in place.
WARNING
!
The blower can generate
excessive noise. Hearing
protection is required while the
unit is in operation.
Before starting the blower for the ¿ rst time under
power, recheck the installation thoroughly to
reduce the likelihood of dif¿ culties. Use the
following checklist as a guide, but consider any
other special conditions in your installation.
1. Be certain no bolts, rags, or dirt have been left
in blower.
2. Be certain that inlet piping is free of debris. If
an open outdoor air intake is used, be sure the
opening is clean and protected by an inlet ¿ lter.
This also applies to indoor use.
3. If installation is not recent, check blower
leveling, drive alignment, belt tension, and
tightness of all mounting bolts.
WARNING
!
Maximum operating speed: Table 4-2 states
the maximum operating speed in RPM
(rotations per minute), the maximum pressure
differential, maximum vacuum and maximum
temperature rise. Do not exceed these limits.
Manual 2017 Rev C p/n 2017
4. Be certain the proper volume of oil is in the oil
reservoir chambers.
5. Be certain the driving motor is properly
lubricated and connected through suitable
electrical overload devices.
6. With electrical power off and locked out to
prevent accidental starting, rotate the blower
shaft several times by hand to make sure the
blower is rotating freely. Unevenness or tight
spots are indicators of a condition that should
be corrected before progressing.
23
06
Operation
7. Check motor rotation by momentarily pushing
the START button and then checking the À ow
direction of the blower. Reverse the motor
connections if the À ow is in the wrong direction.
Carry out initial operation under “no load”
conditions by opening all valves and venting the
discharge to the atmosphere, if possible. Then,
start the motor brieÀ y, listen for unusual noises,
and make sure the blower coasts freely to a stop.
If no problem appears, repeat this check and let
the motor run slightly longer. If any questions exist,
investigate before proceeding.
Assuming all tests are satisfactory, the blower will
now be ready for continuous full-load operation.
During the ¿ rst several days, check periodically to
make sure all conditions remain acceptable and
steady. These checks may be particularly important
if the blower is part of a process system where
conditions may vary. At the ¿ rst opportunity, stop
the blower and clean or remove the inlet ¿ lter.
Also recheck leveling, coupling alignment or belt
tension, and mounting bolts for tightness.
START-UP CHECKLIST
It is recommended that these start-up procedures be followed in sequence and checked off ( ) in the boxes
provided in any of the following cases.
• During initial installation
• After any shutdown period
DATES
CHECKED:
• After maintenance work has been performed
• After blower has been moved to a new location
Check the unit for proper lubrication. Proper oil level is critical. See Lubrication on page
15. See Recommended Lubricants on page 42 for information on acceptable
lubricants for the product.
Check the V-belt drive for proper belt alignment and tension.
Carefully turn the rotors by hand to be certain they do not bind.
WARNING
!
Disconnect power. Make certain power is
off and locked out before touching any
rotating element of the blower, motor, or drive
components.
24
Manual 2017 Rev C p/n 2017
“Bump” the unit with the motor to check rotation (counterclockwise when facing the shaft)
and to be certain it turns freely and smoothly.
Start the unit and operate it for 30 minutes at no load. During this time, feel the cylinder
for hot spots. If minor hot spots occur, see Troubleshooting on page 38.
Apply the load and observe the operation of the unit for 1 hour.
If minor malfunctions occur, discontinue operation and see Troubleshooting on page
38.
DANGER
!
The blower is not intended to be used
with explosive products or in explosive
environments. The blower is not intended
to be used in applications that include
hazardous and toxic gases. Consult the
factory for support.
06
Operation
The upper temperature limits are not intended
for continuous operation. Consult with factory
for detailed information assistance.
STOPPING
WARNING
!
Physical harm may occur if human body parts
are in contact or exposed to the process
vacuum. Assure that all connections are
protected from human contact.
WARNING
!
If rated vacuum or pressure levels are
exceeded, process À uids will migrate to other
parts of the blower and system.
CAUTION
!
Do not touch hot surfaces.
Do not touch the blower while
it is in operation and assure
blower is cool when not in
operation.
CAUTION
!
Do not stop the blower if there are high
outlet pressures in the outlet piping. Unload
the outlet piping prior to shutting down the
blower.
Stop the blower by turning off the motor. Isolate
the blower from the vacuum system and vent the
blower to the atmosphere.
Manual 2017 Rev C p/n 2017
25
06
Operation
RECOMMENDED SHUTDOWN
PROCEDURE TO MINIMIZE RISK OF
FREEZING OR CORROSION
When an air piping system has high humidity or
moisture, water condensation can occur after
the blower is shut down and it begins to cool.
Condensation creates an environment favorable
to corrosion of the iron internal surfaces and to
ice formation in cold weather. Both conditions can
close the operating clearances, causing the blower
to fail upon future start-up.
The following shutdown procedure minimizes
the risk of moisture condensation, corrosion, and
freezing.
Care must be taken not to overload or
overheat the blower during this procedure.
4. If the blower is being taken out of commission
for an extended period of time, see Long-
Term Storage on page 29.
1. Isolate the blower from the moist system
piping, allowing the blower to intake
atmospheric air. Operate the blower under a
slight load, allowing the blower to heat within
safe limits. The heat generated by the blower
will quickly evaporate residual moisture.
2. For carpet cleaning applications, after the
work is completed, allow the blower to run
3 – 5 minutes with the suction hose and wand
attached. The suction hose and wand will
provide enough load to the blower to evaporate
the moisture quickly.
3. For extended shutdown, inject a small amount
of a light lubricating oil such as 3-in-One® or
a spray lubricant such as WD-40® into the
inlet of the blower just before shutdown (3-in-
One and WD-40 are registered trademarks of
WD-40 Company). The lubricant will provide
an excellent protective coating on the internal
surfaces. If using a spray lubricant, take care
to prevent the applicator tube from getting
sucked into the blower. The applicator tube will
damage the blower, likely to a degree where
repair would be required.
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Manual 2017 Rev C p/n 2017
07
MAINTENANCE
GENERAL
Regular inspection of the blower and its
installation, along with complete checks on
operating conditions, will pay dividends in added
life and usefulness. Also, service the drive per
the manufacturer’s instructions and lubricate
the coupling or check the belt drive tension. Use
thermometers and gauges to make sure that
blower operating temperature and pressure remain
within allowed limits.
DANGER
!
The blower and parts may
contain hazardous media.
Assure that pump and parts are
evacuated of hazardous media
prior to servicing.
CAUTION
!
The electrical service must be isolated and
de-energized prior to maintenance. Apply
appropriate procedures to assure electrical
supply is de-energized and cannot be
inadvertently energized during maintenance.
Assure piping and product is isolated prior
to maintenance of blower. Apply appropriate
procedures to assure piping and product
is isolated and that inadvertent opening of
valves cannot occur during maintenance.
CAUTION
!
During routine maintenance, inspect and
assure that guards are in place and secure.
Pay special attention to lubrication of timing gears
and bearings according to the information in
Lubrication on page 15.
When a blower is taken out of service, it may
require internal protection against rusting or
corrosion. The need for such protection must be
a matter of judgment based on existing conditions
as well as length of downtime. Under atmospheric
conditions producing rapid corrosion, protect the
blower immediately. See Long-Term Storage on
page 29.
REGULAR MAINTENANCE
A well-designed maintenance program will add
years of service to the blower.
Check a newly installed blower frequently during
the ¿ rst month of operation, especially lubrication.
With the blower at rest, check the oil level in both
the gear (drive) end and free (non-drive) end of
the blower and add oil as needed. Complete oil
changes are recommended every 1,000 – 1,200
operating hours, or more frequently depending
on the type of oil and operating temperature. Also
change the oil more frequently if pumping corrosive
vapors or where excessive operating temperatures
are encountered. The following is recommended as
a minimum maintenance program.
Manual 2017 Rev C p/n 2017
27
07
Maintenance
DAILY WEEKLY MONTHLY
1. Check and maintain oil
level, and add oil as
necessary.
2. Check for unusual
noise or vibration (see
Troubleshooting on
page 38).
Oil levels should be checked every 24 hours of
operation.
Proper oil drain schedules require oil be changed
before the contaminant load becomes so great
that the lubricating function of the oil is impaired
or heavy disposition of suspended contaminants
occurs. To check the condition of the oil, drain a
sample into a clean container and check for the
presence of water or solids. Slight discoloration of
the oil should not necessitate an oil change.
1. Clean all air ¿ lters. A clogged
air ¿ lter can seriously affect the
ef¿ ciency of the blower and cause
overheating and oil usage.
2. Check the relief valve to make sure
it is operating properly.
SPARE PARTS
Should adjustments or replacement be needed,
repairs can often be performed locally as described
in this manual after obtaining the required parts.
Personnel should have a good background of
mechanical experience and be thoroughly familiar
with the procedures outlined in this manual. For
major repairs not covered in this manual, contact
the nearest Tuthill Vacuum & Blower Systems
service representative.
When ordering parts, supply the blower nameplate
information, as well as the item number and parts
description as per the parts lists and assembly
drawings. Repair kits are available for all models.
These kits contain all the seals, bearings, O-rings,
locks, and special retaining screws necessary for
an overhaul. For convenience when ordering parts,
complete the Operating Data Form included on
the inside back cover of this manual.
1. Inspect the entire system for leaks.
2. Inspect the condition of the oil and
change if necessary.
3. Check drive belt tension and
tighten if necessary.
In developing a stock of spare parts, consider the
following factors:
• The degree of importance in maintaining the
blower in a “ready” condition
• The time lag in parts procurement
• Cost
• Shelf life (seals and O-rings)
FACTORY SERVICE AND REPAIR
With proper care, Tuthill Vacuum & Blower
Systems blowers will give years of reliable service.
The parts are machined to close tolerances
and require special tools by mechanics who are
skilled at this work. Should major repairs become
necessary, contact the factory for the location of
the nearest service facility. Blowers that are still
under warranty must be returned to the factory,
freight prepaid, for service.
Current regulations require Material Safety
Data Sheet to be completed and forwarded to
Tuthill Corporation on any unit being returned
for any reason which has been handling or
involved with hazardous gases or materials.
This is for the protection of the employees of
Tuthill Corporation who are required to perform
service on this equipment. Failure to do so will
result in service delays.
28
Manual 2017 Rev C p/n 2017
When returning a blower to the factory for
repair, under warranty, please note the factory
will not accept any unit that arrives without
authorization. Contact the Service Department
for return authorization.
LONG-TERM STORAGE
Any time the blower will be stored for an extended
period of time, make sure it is protected from
corrosion by following this procedure:
1. Spray the interior (lobes, housing, and end
plates) with rust preventative. Repeat as
conditions dictate and on an at least a yearly
basis.
07
Maintenance
10. If possible, rotate the drive shaft by hand at
least monthly to prevent seals from setting in
one position.
2. Fill both end covers completely full of oil.
3. Firmly attach a prominent tag stating that the
end covers are full of oil and must be drained
and re¿ lled to proper levels before start-up.
4. Apply a rust-preventative grease to the drive
shaft.
5. Spray all exposed surfaces, including the inlet
and discharge À anges, with rust preventative.
6. Seal the inlet, discharge, and vent openings.
It is not recommended that the blower be set
in place, piped to the system, and allowed to
remain idle for a prolonged amount of time. If
any component is left open to the atmosphere,
the rust preventative will escape and lose its
effectiveness.
7. During storage, make sure the blower does not
experience excessive vibration.
8. Attach a desiccant bag to one of the covers to
prevent condensation from occurring inside the
blower. Make sure any desiccant bag (or bags)
is attached to the covers so that they will be
removed before start-up of the blower.
9. Store the blower in an air conditioned and
heated building if possible. If air conditioned
and heated storage is not possible, make
conditions as dry as possible.
Manual 2017 Rev C p/n 2017
29
08
DISASSEMBLY AND REASSEMBLY
DISASSEMBLY OF BLOWER
WARNING
!
Before performing any repair or replacement,
disconnect and lock out power.
With proper maintenance and lubrication, normal
life expectancy for gears, bearings, and seals
can be achieved. However, over time these parts
must be repaired or replaced to maintain the
ef¿ ciency of the blower. This section is written in a
way that will allow you to completely disassemble
the blower. The inspection of certain repairable
or replaceable parts is referred to at the point of
disassembly where these parts are exposed. If
repair or replacement is deemed necessary at any
point of inspection, appropriate instruction is given
to achieve.
1. Remove the oil drain plugs in the bottom of the
end covers and drain the oil.
Gears are not exposed for visual inspection prior to
disassembly.
Inspect the gears for the following:
• Broken teeth
• Chipped teeth
• Uneven wear
• Excessive wear
• Any other abnormalities
3. Position the blower with the drive gear on the
left when facing the gears. Remove the sockethead screws and washers.
4. Align the timing marks, count 3 teeth up, and
place reference marks on the gears (see
Figure 8-1).
2. Remove eight cap screws and remove the
gear cover.
OTE: N It may be necessary to tap the sides with
a mallet or wooden block to break the seal
joint.
30
DRIVE
GEAR
Figure 8-1 – Timing Marks Matched
DRIVEN
GEAR
Manual 2017 Rev C p/n 2017
08
Disassembly and Reassembly
DRIVE
GEAR
Figure 8-2 – Timing Marks Advanced 3 Teeth (Reference
Marks Aligned)
5. Align the reference marks (see Figure 8-2).
6. Use a puller to remove the driven gear. A bar
puller or jaw puller (see Figure 8-3) can be
used.
DRIVEN
GEAR
Figure 8-4 – Pulling Driven Gear with Bar Puller
OTE: N If the unit becomes locked up, switch
gears.
8. Remove the shim and spacer, and note from
which shaft the shim is removed.
9. Turn the blower around and remove the 8 cap
screws securing the drive end cover.
10. Remove the cover.
11. Loosen the set screws on the oil slingers and
remove the oil slingers from the rotor shafts
(see Figure 8-5).
Figure 8-3 – Pulling Driven Gear with Jaw Puller or Bar
Puller
7. Remove the drive gear using a bar puller or
jaw puller (see Figure 8-4).
Manual 2017 Rev C p/n 2017
Figure 8-5 – Set Screws for Slingers
31
08
Disassembly and Reassembly
12. Remove the 10 cap screws that secure the
drive end plate to the housing.
13. Use a jaw puller or jackscrews to remove the
drive end plate (see Figure 8-6 and Figure
8-7).
14. Press the rotors out of the free (non-drive)
end plate in press if available. If press is not
available, support the end plate and rotors in
the housing. Block up the housing and use a
soft mallet to drive the rotors out (see Figure
8-8). A jaw-type puller can also be used.
Figure 8-6 – Removing Drive End End Plate Using
Jackscrews (21 Series)
Figure 8-7 – Pulling Drive End Plate (22 Series)
Figure 8-8 – Driving Rotors Out Using Soft Mallet
15. Using a tube or round bar of a slightly smaller
diameter than the shaft clearance holes in the
end plates, tap the bearings out of the end
plates. Remove the bearing retainers before
knocking out the bearings (see Figure 8-9).
32
Manual 2017 Rev C p/n 2017
Figure 8-9 – Tapping Bearings Out of End Plates
08
Disassembly and Reassembly
Figure 8-10 – Rotors Assembled on Drive End Plate
(Model 4000 with Tri-Lobe Rotors Shown)
16. Remove the seals from both end plates with a
punch or dull chisel. The seals will be damaged
during removal and must be replaced. Inspect
all parts for wear or damage.
17. Clean and inspect all parts for burrs, and polish
the seal journals with at least 320-grit emery or
crocus cloth.
REASSEMBLY OF BLOWER
After thoroughly cleaning the seal and bearing
bores of both end plates, apply a thin coat of
sealant on the outside diameter of the new seals
and press them into the end plate using a tool that
will bear on the outer edge of the seal. The spring
side of the seal should be facing you. Apply a thin
coat of grease to the seal lip.
See Special Tool Drawings on page 44 for
drawings and dimensions of the seal and bearing
pressing tools.
Using the drive end plate as a ¿ xture, support the
plate high enough so the input shaft of the drive
rotor clears the assembly surface (see Figure
8-10). Place the rotors in the ¿ xture with the drive
rotor to the left (see Figure 8-10 and Figure 8-14).
Figure 8-11 – Tapping Bearings into End Plates
Manual 2017 Rev C p/n 2017
33
08
Disassembly and Reassembly
Figure 8-12 – Checking Gear End Clearances
2-LOBE UNITS
ALL MODELS
DRIVE
DRIVEN
3-LOBE UNITS
4000 MODELS
DRIVEN
DRIVE
Figure 8-13 – Check Drive End Clearances
3000 AND 5000 MODELS
DRIVEN
DRIVE
Figure 8-14 – Rotor Keyway Positions
1. Place end plate on rotors.
2. Apply a thin coat of lubricant on the rotor shafts
and the inner race of the bearings. Tap the
bearings into place using a tube with a À anged
end that will contact both the inner and outer
bearing races (see Figure 8-11).
3. Install bearing retainers to both bearings.
34
4. Check clearances between the end of the
rotors and the face of the end plate. See
Assembly Clearances on page 40 for
proper clearances for your model blower.
Manual 2017 Rev C p/n 2017
08
Disassembly and Reassembly
5. If clearances check OK, put a spacer on each
shaft. Timing shims that were removed should
be put back on the shaft from which they were
removed.
6. Add keys to keyways.
7. Lubricate shafts and bores on gears. Begin
by pressing on the DRIVE gear. This will be
pressed on the drive rotor, which is to the left.
8. Start the driven gear on the shaft and align
the reference timing marks and press gear on.
Lock gears in place with socket head screw
and washer. Turn assembly over and rest the
unit on the socket head screws and washers
on the gear end, securing the unit with support
blocks.
9. Set dowel pins in housing and position housing
over the rotors and fasten with cap screws.
Check drive end clearance (see Figure 8-13).
A depth mic can be used.
10. Press seals into drive endplate.
13. Apply a bead of a good quality RTV silicone
sealant to the inner surface of the drive end
cover that mates to the drive end plate. Install
drive end cover and drive shaft seal.
14. Install any removed plugs and sight glasses,
and replace breather if required.
WARNING
!
Keep hands and loose clothing
away from lobes and gears.
11. Set on drive end plate and fasten with cap
screws.
12. Lubricate shafts and bearings. Install the
ball bearing on the driven rotor and the roller
bearing on the input shaft. Install oil slingers to
appropriate rotors.
OTE: N Oil slingers are on the Splash Lubrication/
Air Service models only. The Grease
Lubrication/Air Service blowers will not
have oil slingers.
Manual 2017 Rev C p/n 2017
35
08
Disassembly and Reassembly
Adjusting Rotor Interlobe Clearance
1. Use feeler gauges to take interlobe readings,
and record them on each side of housing as
indicated in Figure 8-15. As shim is removed
or added behind the helical gear, the gear
rotates as it is moved in or out and the driven
rotor turns with it, thus changing the clearance
between rotor lobes.
Figure 8-15 – Checking Rotor Interlobe Clearances
2. Changing the shim thickness will change the
rotor lobe clearance.
3. To determine the amount of shim to add or
remove, subtract the smaller value from the
larger value.
36
EXAMPLE: Referring to Figure 8-15, check
the clearance at AA (right-hand reading) and
BB (left-hand reading). If the AA reading is
0.009 in. (0.23 mm) and the BB reading 0.003
in. (0.08 mm), adjust by removing 0.006 in.
(0.15 mm) shims from the driven rotor. The
readings will change one half the amount
removed: 0.003 in. (0.08 mm). AA should then
read 0.006 in. (0.15 mm) and BB should read
0.006 in. (0.15 mm). The ¿ nal readings should
be within 0.002 in. (0.05 mm) of each other.
Manual 2017 Rev C p/n 2017
08
Disassembly and Reassembly
MODEL CHANGE
2000 1 1
3000/4000/5000 1 1
6000 1 1.5
7000 1 1.8
OTE: N Both the drive and driven gears can be
shimmed.
SHIM
CHANGE
Lubrication, Final Assembly and
Mounting
1. Apply a bead of a high-quality RTV silicone
sealant to the inner surface of the gear end
cover that mates to the gear end plate. Install
the gear end cover with cap screws and tighten
evenly.
2. Fill both end covers with oil. See Lubrication
on page 15 for the ¿ lling procedure, and see
Recommended Lubricants on page 42 for
recommended lubricants.
3. To make sure the blower has not been
distorted during mounting in the installation,
turn the lobes by hand to make sure they are
not making contact before connecting to the
driver.
Manual 2017 Rev C p/n 2017
37
09
TROUBLESHOOTING
Although Tuthill Vacuum & Blower Systems blowers are well designed and manufactured, problems may occur
due to normal wear and the need for readjustment. The following chart lists symptoms that may occur along
with probable causes and remedies.
SYMPTOM PROBABLE CAUSE REMEDIES
Loss of oil
Excessive
bearing or gear
wear
Lack of volume
Knocking
Gear housing not
tightened properly
Lip seal failure Disassemble and replace lip seal.
Insuf¿ cient sealant
Loose drain plug Tighten drain plug.
Improper lubrication
Excessive belt tension
Coupling misalignment Check carefully. Re-align if necessary.
Slipping belts
Worn lobe clearances
Speed too low Increase blower speed within limits.
Obstruction in piping Check system to ensure an open À ow path.
Blower out of time Re-time.
Distortion due to
improper mounting or
pipe strains
Excessive pressure
differential
Worn gears
Tighten gear housing bolts.
Remove gear housing and replace sealant. See Disassembly
of Blower on page 30.
Correct oil level. Replace dirty oil. See Lubrication on page
15.
Check belt manufacturer’s speci¿ cations for tension and adjust
accordingly.
Check belt manufacturer’s speci¿ cations for tension and adjust
accordingly.
Check for proper clearances. See Assembly Clearances on
page 40.
Check mounting alignment and relieve pipe strains.
Reduce to manufacturer’s recommended pressure. Examine
relief valve and reset if necessary.
Replace timing gears. See Disassembly of Blower on page
30.
38
Manual 2017 Rev C p/n 2017
SYMPTOM PROBABLE CAUSE REMEDIES
09
Troubleshooting
Excessive
blower
temperature
Rotor end or tip
drag
Too much or too little
oil in gear reservoir
Too low operating
speed
Clogged ¿ lter or
silencer
Excessive pressure
differential
Elevated inlet
temperature
Worn lobe clearances
Insuf¿ cient assembled
clearances
Case or frame
distortion
Excessive operating
pressure
Excessive operating
temperature
Belt or coupling
misalignment
Lobes rubbing
Check oil level. See Lubrication on page 15.
Increase blower speed within limits.
Remove cause of obstruction.
Reduce pressure differential across the blower.
Reduce inlet temperature.
Check for proper clearances. See Assembly Clearances on
page 40.
Correct clearances. See Assembly Clearances on page 40.
Check mounting and pipe strain.
Reduce pressure differential.
Reduce pressure differential or reduce inlet temperature.
Check carefully. Re-align if necessary.
Check cylinder for hot spots, and then check for lobe contact at
these points. Correct clearances. See Assembly Clearances
on page 40.
Vibration
Manual 2017 Rev C p/n 2017
Worn bearings or gears Check condition of gears and bearings. Replace if necessary.
Unbalanced or rubbing
lobes
Driver or blower loose Check mounting and tighten if necessary.
Piping resonance
Possible build-up on casing or lobes, or inside lobes. Remove
build-up and restore clearances.
Check pipe supports, check resonance of nearby equipment,
and check foundation.
39
10
ASSEMBLY CLEARANCES
MODEL
2002
2004
3002
3003
3006
4002
4005
4007
5003
5006
5009
6005
6008
6015
7006
701 1
7018
LOBES TO END PLATES
DRIVE END GEAR END TOTAL TIP-DOWEL TIP-PORT
0.004 – 0.007 in.
(0.10 – 0.18 mm)
0.004 – 0.007 in.
(0.10 – 0.18 mm)
0.004 – 0.007 in.
(0.10 – 0.18 mm)
0.005 – 0.008 in.
(0.13 – 0.20 mm)
0.006 – 0.010 in.
(0.15 – 0.25 mm)
0.004 – 0.009 in.
(0.10 – 0.23 mm)
0.005 – 0.010 in.
(0.12 – 0.25 mm)
0.005 – 0.010 in.
(0.12 – 0.25 mm)
0.004 – 0.009 in.
(0.10 – 0.23 mm)
0.005 – 0.010 in.
(0.13 – 0.25 mm)
0.005 – 0.010 in.
(0.13 – 0.25 mm)
0.008 – 0.013 in.
0.20 – 0.33 mm)
0.008 - 0.013 in.
(0.20 - 0.33 mm)
0.009 – 0.014 in.
(0.23 – 0.36 mm)
0.008 – 0.012 in.
(0.20 – 0.30 mm)
0.010 – 0.014 in.
(0.25 – 0.36 mm)
0.010 – 0.014 in.
(0.25 – 0.36 mm)
0.003 – 0.005 in.
(0.08 – 0.13 mm)
0.003 – 0.005 in.
(0.08 – 0.13 mm)
0.003 – 0.005 in.
(0.08 – 0.13 mm)
0.003 – 0.005 in.
(0.08 – 0.13 mm)
0.003 – 0.005 in.
(0.08 – 0.13 mm)
0.004 – 0.006 in.
(0.10 – 0.15 mm)
0.004 – 0.006 in.
(0.10 – 0.15 mm)
0.004 – 0.006 in.
(0.10 – 0.15 mm)
0.004 – 0.006 in.
(0.10 – 0.15 mm)
0.004 – 0.006 in.
(0.10 – 0.15 mm)
0.004 – 0.006 in.
(0.10 – 0.15 mm)
0.005 – 0.007 in.
(0.12 – 0.18 mm)
0.005 – 0.007 in.
(0.12 – 0.18 mm)
0.005 – 0.007 in.
(0.13 – 0.18 mm)
0.005 – 0.007 in.
(0.13 – 0.18 mm)
0.005 – 0.007 in.
(0.13 – 0.18 mm)
0.005 – 0.007 in.
(0.13 – 0.18 mm)
0.008 – 0.011 in.
(0.20 – 0.28 mm)
0.008 – 0.011 in.
(0.20 – 0.28 mm)
0.008 – 0.012 in.
(0.20 – 0.30 mm)
0.009 – 0.012 in.
(0.23 – 0.30 mm)
0.010 – 0.013 in.
(0.25 – 0.33 mm)
0.009 – 0.013 in.
(0.23 – 0.33 mm)
0.010 – 0.014 in.
(0.25 – 0.36 mm)
0.010 – 0.014 in.
(0.25 – 0.36 mm)
0.009 - 0.013 in.
(0.29 - 0.33 mm)
0.010 – 0.014 in.
(0.25 – 0.36 mm)
0.010 – 0.014 in.
(0.25 – 0.36 mm)
0.015 – 0.019 in.
(0.38 – 0.48 mm)
0.015 – 0.019 in.
(0.38 – 0.48 mm)
0.016 – 0.020 in.
(0.40 – 0.50 mm)
0.015 – 0.018 in.
(0.38 – 0.46 mm)
0.017 – 0.020 in.
(0.43 – 0.51 mm)
0.017 – 0.020 in.
(0.43 – 0.51 mm)
INTERLOBE
0.005 – 0.009 in.
(0.13 – 0.23 mm)
0.005 – 0.009 in.
(0.13 – 0.23 mm)
0.006 – 0.012 in.
(0.15 – 0.30 mm)
0.010 – 0.014 in.
(0.25 – 0.36 mm)
0.010 – 0.014 in.
(0.25 – 0.36 mm)
0.012 – 0.016 in.
(0.30 – 0.41 mm)
0.012 – 0.016 in.
(0.30 – 0.41 mm)
0.012 – 0.016 in.
(0.30 – 0.41 mm)
0.014 – 0.018 in.
(0.36 – 0.46 mm)
0.014 – 0.018 in.
(0.36 – 0.46 mm)
0.014 – 0.018 in.
(0.36 – 0.46 mm)
0.010 – 0.014 in.
(0.25 – 0.36 mm)
0.010 – 0.014 in.
(0.25 – 0.36 mm)
0.010 – 0.014 in.
(0.25 – 0.36 mm)
0.012 – 0.016 in.
(0.30 – 0.41 mm)
0.012 – 0.016 in.
(0.30 – 0.41 mm)
0.012 – 0.016 in.
(0.30 – 0.41 mm)
LOBE TO CASING
0.002 – 0.004 in.
(0.05 – 0.10 mm)
0.002 – 0.004 in.
(0.05 – 0.10 mm)
0.002 – 0.005 in.
(0.05 – 0.13 mm)
0.002 – 0.005 in.
(0.05 – 0.13 mm)
0.002 – 0.005 in.
(0.05 – 0.13 mm)
0.003 – 0.006 in.
(0.08 – 0.15 mm)
0.003 – 0.006 in.
(0.08 – 0.15 mm)
0.003 – 0.006 in.
(0.08 – 0.15 mm)
0.003 – 0.006 in.
(0.08 – 0.15 mm)
0.003 – 0.006 in.
(0.08 – 0.15 mm)
0.003 – 0.006 in.
(0.08 – 0.15 mm)
0.004 – 0.007 in.
(0.10 – 0.18 mm)
0.004 – 0.007 in.
(0.10 – 0.18 mm)
0.004 – 0.007 in.
(0.10 – 0.18 mm)
0.004 – 0.007 in.
(0.10 – 0.18 mm)
0.004 – 0.007 in.
(0.10 – 0.18 mm)
0.004 – 0.007 in.
(0.10 – 0.18 mm)
0.003 – 0.006 in.
(0.08 – 0.15 mm)
0.003 – 0.006 in.
(0.08 – 0.15 mm)
0.004 – 0.007 in.
(0.10 – 0.18 mm)
0.004 – 0.007 in.
(0.10 – 0.18 mm)
0.004 – 0.007 in.
(0.10 – 0.18 mm)
0.005 – 0.008 in.
(0.13 – 0.20 mm)
0.005 – 0.008 in.
(0.13 – 0.20 mm)
0.005 – 0.008 in.
(0.13 – 0.20 mm)
0.005 – 0.008 in.
(0.13 – 0.20 mm)
.005 – .008 in.
(0.13 – 0.20 mm)
0.005 – 0.008 in.
(0.13 – 0.20 mm)
0.006 – 0.009 in.
(0.15 – 0.23 mm)
0.006 – 0.009 in.
(0.15 – 0.23 mm)
0.006 – 0.009 in.
(0.15 – 0.23 mm)
0.006 – 0.009 in.
(0.15 – 0.23 mm)
0.006 – 0.009 in.
(0.15 – 0.23 mm)
0.006 – 0.009 in.
(0.15 – 0.23 mm)
40
Manual 2017 Rev C p/n 2017
TORQUE CHART
Data shown represents “wet” torque values in foot-pounds and (Newton-meters).
PART DESCRIPTION TORQUE
11
CAP SCREW 10-32UNF
CAP SCREW 1/4"-20UNC GR5
CAP SCREW 5/16"-18UNC GR5
CAP SCREW 3/8"-16UNC GR5
CAP SCREW 1/2"-13UNC GR5
CAP SCREW 5/8"-14UNC GR5
CAP SCREW 3/4"-10UNC GR5
3 ft-lb
(4 N-m)
6 ft-lb
(8 N-m)
13 ft-lb
(17 N-m)
23 ft-lb
(31 N-m)
57 ft-lb
(77 N-m)
113 ft-lb
(153 N-m)
200 ft-lb
(271 N-m)
Manual 2017 Rev C p/n 2017
41
12
RECOMMENDED LUBRICANTS
RECOMMENDED LUBRICANTS FOR ROTARY BLOWERS AND VACUUM
BOOSTERS
RECOMMENDED SYNTHETIC BASED LUBRICANTS FOR BLOWERS
TEMPERATURE
0° to 32°F
(-18° to 0°C)
32° to 90°F
(0° to 32°C)
90° to 120°F*
(32° to 50°C)
TUTHILL VISCOSITY GRADE ISO 100
16°C (62°F)
Viscosity
40°C (104°F)
PneuLube™ (ISO 100)
Viscosity
100°C (212°F)
Viscosity Index
Pour Point
Flash Point
Copper Corrosion Rating
0.859
91.8 cSt
13.1 cSt
142
-51°C (-60°F)
246°C (475°F)
1A
ISO 150AMBIENT
0.865Specific Gravity
142.7 cSt
18.0 cSt
140
-51°C (-60°F)
246°C (475°F)
1A
AMBIENT
TEMPERATURE
0° to 32°F
(-18° to 0°C)
32° to 90°F
(0° to 32°C)
90° to 120°F*
(32° to 50°C)
42
RECOMMENDED SYNTHETIC BASED, FOOD GRADE LUBRICANTS FOR BLOWERS
LUBRICANT MEETING U.S. FDA REGULATION
21 CFR 178.3570 GOVERNING PETROLEUM
PRODUCTS WHICH MAY HAVE INCIDENTAL
CONTACT WITH FOOD, AND USDA H1
REQUIREMENTS
PneuLube™ FG (ISO 100) CONSULT FACTORY
LUBRICANT MEETING U.S. FDA
REGULATIONS 21 CFR 172.878 AND
178.3620(A) FOR DIRECT AND INDIRECT
FOOD CONTACT
Manual 2017 Rev C p/n 2017
12
Recommended Lubricants
RECOMMENDED LUBRICANTS FOR M-D VACUUM BOOSTERS
REQUIREMENTS
• Suitable for high vacuum service
• 100 cSt @ 40°C
• Vapor pressure of 1 micron or less @ 70°F (21°C)
• Straight mineral (no additives) or PAO synthetic oil
RECOMMENDED GREASE FOR CP BLOWERS:
TUTHILL
Tuthill PneuLube™ NLGI #2 premium grade,
petroleum base lithium grease.
* For higher ambient temperatures, please consult the factory.
RECOMMENDED OIL FOR OXYGEN-ENRICHED SERVICE
Blowers used in oxygen-enriched service should use only non-flammable, PFPEsynthetic lubricant. Blowers used in hydrogen
service should use only PneuLube synthetic oil. Tuthill Vacuum & Blower Systems cannot accept responsibility for damage to
seals, O-rings and gaskets caused by use of synthetic lubricants not recommended by Tuthill Vacuum and Blower Systems
Food Grade HTEP grease, NLGI No. 2 grade. Must meet all requirements of
FDA Regulation 21 CFR 178.3570 (the former USDA H-1 approval
requirements) for lubricants having incidental contact with food.
Manual 2017 Rev C p/n 2017
43
13
SPECIAL TOOL DRAWINGS
MODEL
2000
3000
4000
5000
6000
7000
A
±.001
± 0.0254
1.560
39.624
2.035
51.689
2.425
61.595
2.820
71.628
3.135
79.629
3.525
89.535
F
B
±.005
± 0.127
1.27
32.258
1.70
43.18
2.02
51.308
2.42
61.468
2.73
69.342
2.98
75.692
G
±.005
± 0.127
24.892
1.335
33.909
1.61
40.894
1.81
45.974
2.00
50.8
2.46
62.484
C
.98
A
B
C
D
E
D
±.005
± 0.127
.70
17.78
1.015
25.781
1.21
30.734
1.41
35.814
1.605
40.767
1.605
40.767
R .06
1.524
MIN
±.005
± 0.127
1.10
27.94
1.415
35.941
1.61
40.894
1.81
45.974
2.00
50.8
2.00
50.8
.06
1.524
E
F
±.005
± 0.127
3.50
88.9
3.75
95.25
4.50
114.3
5.00
127
6.25
158.75
6.25
158.75
G
±.005
± 0.127
3.00
76.2
3.00
76.2
3.75
95.25
4.25
107.95
5.50
139.7
5.50
139.7
MODEL
2000
3000
4000
5000
6000
7000
A
±.001
± 0.0254
1.560
39.624
2.035
51.689
2.425
61.595
2.820
71.628
3.135
79.629
3.525
89.535
.75
19.05
F
B
±.005
± 0.127
1.24
31.496
1.74
44.196
1.865
47.371
2.427
61.645
2.74
69.596
2.99
75.946
A
B
C
D
E
C
±.005
± 0.127
1.04
26.416
1.54
39.116
1.665
42.291
2.227
56.565
2.54
64.516
2.79
70.866
3.048
R .12
3.048
MIN
D
±.005
± 0.127
.70
17.78
1.015
25.781
1.21
30.734
1.41
35.814
1.605
40.767
1.605
40.767
.12
E
±.005
± 0.127
1.10
27.94
1.415
35.941
1.61
40.894
1.81
45.974
2.00
50.8
2.00
50.8
F
±.005
± 0.127
4.00
101.6
4.37
110.99
5.25
133.35
5.68
144.272
7.00
177.8
7.00
177.8
Figure 13-1 – Bearing Pressing Tool
44
Figure 13-2 – Seal Pressing Tool
Manual 2017 Rev C p/n 2017
13
Special Tool Drawings
This Page Intentionally Left Blank
Manual 2017 Rev C p/n 2017
45
Parts List
Cutaway Drawing for Grease Lubrication / Air Service
8
5
30
31
29
16
27
15 4
22
25
13
26
28
18
17
24 15 19
3
15
10
20
6
23
2
17
7
11
46
19
Manual 2017 Rev C p/n 2017
PARTS LIST
Parts List for Model CP Series – Grease Lubrication / Air Service
Parts List
ITEM
NO.
1 Housing 1
2 Mounting Foot 2
3 Drive End Plate 1
4 Gear End Plate 1
5 Gear Cover 1
6 Drive Rotor 1
7 Driven Rotor 1
8 Gear Set 1
9 Dowel Pin 4
10 Cover Grease 1
11 Bearing 1
12* Bearing 1
13 Bearing 2
15 Screw, Socket Head 14
16 Screw, Socket Head 8
17 Screw, Socket Head 6
18 Pipe Plug 3
18 Magnetic Plug 2
19 Relief Fitting 2
20 Grease Fitting 2
22 Bearing Retainer 2
23 Lip Seal 1
24 Lip Seal 4
25 Screw, Hex Head 8
26 Washer 2
27 Breather 1
28 Spacer 2
29 Cap Screw 2
30 Shim 6
30 Shim 2
30 Shim 2
31 Key Gear 2
42* Nameplate 1
PART DESCRIPTION QTY
ITEM
NO.
45* Lifting Lug 2
* Not shown
NOTES:
• QUANTITIES SHOWN ARE MAXIMUM
VALUES. QUANTITIES MAY VARY BETWEEN
BLOWER.
PARTS KITS ARE AVAILABLE. CONSULT
AUTHORIZED REPRESENTATIVE FOR PART
NUMBERS.
PART DESCRIPTION QTY
Manual 2017 Rev C p/n 2017
47
Parts List
Cutaway Drawing for Splash Lubrication / Air Service
22
415 27 16
12 3 1524 9 1 6 7
10
25
45
13
26
26
29
48
11
8
23
30
31
29
47
28
46
21
(BOTH ENDS)
16
18
17
44
5
48
15
27
16
2
17
Manual 2017 Rev C p/n 2017
Parts List for Model CP Series – Splash Lubrication / Air Service
Parts List
ITEM
NO.
1 Housing 1
2 Mounting Foot 2
3 Drive End Plate 1
4 Gear End Plate 1
5 Gear End Cover 1
6 Drive Rotor 1
7 Driven Rotor 1
8 Gear Set 1
9 Dowel Pin 4
10 Drive End Cover 1
11 Bearing 1
12 Bearing 1
13 Bearing Ball 2
15 Screw, Socket Head 14
16 Screw, Socket Head 16
17 Screw, Socket Head 6
18 Pipe Plug 8
18 Magnetic Plug 4
21 Oil Sight Glass 4
22 Bearing Retainer 2
23 Lip Seal 1
24 Lip Seal 4
25 Screw, Hex Head 8
26 Washer 3
27 Breather 2
28 Spacer 2
29 Cap Screw 3
30 Shim 6
30 Shim 2
30 Shim 2
31 Key Gear 2
42* Nameplate 1
44 Roll Pin 2
45* Lifting Lug 2
PART DESCRIPTION QTY
ITEM
NO.
46* Slinger Oil-2, Machine-1 2
48* Roll Pin 2
* Not shown
NOTES:
• QUANTITIES SHOWN ARE MAXIMUM
VALUES. QUANTITIES MAY VARY BETWEEN
BLOWER.
PARTS KITS ARE AVAILABLE. CONSULT
AUTHORIZED REPRESENTATIVE FOR PART
NUMBERS.
PART DESCRIPTION QTY
Manual 2017 Rev C p/n 2017
49
Parts List
This Page Intentionally Left Blank
50
Manual 2017 Rev C p/n 2017
WARRANTY – BLOWER PRODUCTS
Subject to the terms and conditions hereinafter set forth and set forth in General Terms of Sale, Tuthill Vacuum & Blower
Systems (the Seller) warrants products and parts of its manufacture, when shipped, and its work (including installation and
start-up) when performed, will be of good quality and will be free from defects in material and workmanship. This warranty
applies only to Seller’s equipment, under use and service in accordance with seller’s written instructions, recommendations
and ratings for installation, operating, maintenance and service of products, for a period as stated in the table below. Because
of varying conditions of installation and operation, all guarantees of performance are subject to plus or minus 5% variation.
(Non-standard materials are subject to a plus or minus 10% variation)
PRODUCT
TYPE
New
(Qx™ models only)
New
(all other models)
Repair/Reman
ATMOSPHERIC AIR OR PROCESS AIR
WITHOUT LIQUIDS PRESENT
30 months from date of shipment, or 24 months after
initial startup date, whichever occurs first.
24 months from date of shipment, or 18 months after
initial startup date, whichever occurs first
12 months from date of shipment, or remaining warranty
period, whichever is greater
TYPE OF APPLICATION
PROCESS GASES OTHER THAN AIR,
OR ANY LIQUID INJECTED APPLICATION
Consult Factory
18 months from date of shipment, or 12 months after
initial startup date, whichever occurs first
12 months from date of shipment, or remaining
warranty period, whichever is greater
THIS WARRANTY EXTENDS ONLY TO BUYER AND/OR ORIGINAL END USER, AND IN NO EVENT SHALL THE SELLER
BE LIABLE FOR PROPERTY DAMAGE SUSTAINED BY A PERSON DESIGNATED BY THE LAW OF ANY JURISDICTION
AS A THIRD PARTY BENEFICIARY OF THIS WARRANTY OR ANY OTHER WARRANTY HELD TO SURVIVE SELLER’S
DISCLAIMER.
All accessories furnished by Seller but manufactured by others bear only that manufacturer’s standard warranty.
All claims for defective products, parts, or work under this warranty must be made in writing immediately upon discovery and,
in any event within one (1) year from date of shipment of the applicable item and all claims for defective work must be made
in writing immediately upon discovery and in any event within one (1) year from date of completion thereof by Seller. Unless
done with prior written consent of Seller, any repairs, alterations or disassembly of Seller’s equipment shall void warranty.
Installation and transportation costs are not included and defective items must be held for Seller’s inspection and returned to
Seller’s Ex-works point upon request.
THERE ARE NO WARRANTIES, EXPRESSED, IMPLIED OR STATUTORY WHICH EXTEND BEYOND THE DESCRIPTION
ON THE FACE HEREOF, INCLUDING WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS OF PURPOSE.
After Buyer’s submission of a claim as provided above and its approval, Seller shall at its option either repair or replace its
product, part, or work at the original Ex-works point of shipment, or refund an equitable portion of the purchase price.
The products and parts sold hereunder are not warranted for operation with erosive or corrosive material or those which may
lead to build up of material within the product supplied, nor those which are incompatible with the materials of construction.
The Buyer shall have no claim whatsoever and no product or part shall be deemed to be defective by reason of failure to
resist erosive or corrosive action nor for problems resulting from build-up of material within the unit nor for problems due to
incompatibility with the materials of construction.
Any improper use, operation beyond capacity, substitution of parts not approved by Seller, or any alteration or repair by
others in such manner as in Seller’s judgment affects the product materially and adversely shall void this warranty.
No employee or representative of Seller other than an Officer of the Company is authorized to change this warranty in any
way or grant any other warranty. Any such change by an Officer of the Company must be in writing.
The foregoing is Seller’s only obligation and Buyer’s only remedy for breach of warranty, and except for gross negligence,
willful misconduct and remedies permitted under the General Terms of Sale in the sections on CONTRACT PERFORMANCE,
INSPECTION AND ACCEPTANCE and the PATENTS Clause hereof, the foregoing is BUYER’S ONLY REMEDY
HEREUNDER BY WAY OF BREACH OF CONTRACT, TORT OR OTHERWISE, WITHOUT REGARD TO WHETHER ANY
DEFECT WAS DISCOVERED OR LATENT AT THE TIME OF DELIVERY OF THE PRODUCT OR WORK. In no event shall
Buyer be entitled to incidental or consequential damages. Any action for breach of this agreement must commence within
one (1) year after the cause of action has occurred.
May 2008
OPERATING DATA FORM / PRODUCT REGISTRATION
It is to the user’s advantage to have the requested data filled in below and available in the event a problem should develop
in the blower or the system. This information is also helpful when ordering spare parts.
Model No. V-Belt Size Length
Serial No. Type of Lubrication
Start-up Date
Pump RPM Operating Vacuum
Pump Sheave
Diameter Any Other Special Accessories Supplied or in Use:
Motor Sheave
Diameter
Motor RPM HP
NOTES:
IMPORTANT
All blowers manufactured by Tuthill Vacuum & Blower Systems are date-coded at time of shipment. In order
to assure you of the full benefits of the product warranty, please complete, tear out and return the product
registration card, or register online at tuthillvacuumblower.com.
Technical Support: 1-877-955-TECH (8324)
Service & Repair or Product Sales:
Tuthill Vacuum & Blower Systems
4840 West Kearney Street
Spring¿ eld, Missouri USA 65803-8702
O 417.865.8715 800.825.6937
F 417.865.2950
www.tuthillvacuumblower.com
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VACUUM & BLOWER SYSTEMS
TUTHILL CORPORATION
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Manual 2017 Rev C p/n 2017
4/18
All rights reserved. Product information and speci¿ cations subject to change.
Copyright © 2018 Tuthill Vacuum & Blower Systems
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