Tuthill Qx 3200 Series Operating instructions

LEADING THE SEARCH FOR NEW SOLUTIONS
4840 West Kearney Street, P. O. Box 2877
Springfield, Missouri USA 65801-2877
Tel [phone] 825-6937 Fax [phone]
http://vacuum.tuthill.com
Models 3200 4600 6000
INSTALLATION
OPERATION
MAINTENANCE
REPAIR
MANUAL
WARNING
DO NOT OPERATE
BEFORE READING MANUAL
6/2009
Rotary Positive Displacement Air Blowers

2
SAFETY INSTRUCTIONS
Do not operate before reading the enclosed instruction
manual.
Use adequate protection, warning and safety equipment
necessary to protect against hazards involved in installation
and operation of this equipment.
1.
2.
NOTICE
The safety instruction tags shown below were attached to
your unit 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.
1.
2.
SAFETY WARNINGS
Keep hands and clothing away from rotating machinery, inlet and discharge openings.
Blower and drive mounting bolts must be secured.
Drive belts and coupling guards must be in place.
Noise level may require ear protection.
Blower heat can cause burns if touched.
TUTHILL VACUUM AND BLOWER SYSTEMS — SPRINGFIELD, MO USA
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SAFETY PRECAUTIONS
For equipment covered specifically or indirectly in this instruction book, it is important that all personnel observe safety
precautions to minimize the chances of injury. Among many considerations, the following should particularly be noted:
Blower casing and associated piping or accessories may become hot enough to cause major skin burns on contact.
Internal and external rotating parts of the blower and driving equipment can produce serious physical injuries. Do not reach
into any opening in the blower while it is operating, or while subject to accidental starting. Cover external moving parts with
adequate guards.
Disconnect power before doing any work, and avoid bypassing or rendering inoperative any safety or protective devices.
If blower is operated with its piping disconnected, place a strong, coarse screen over the inlet and avoid standing in discharge
air stream.
Avoid extended exposure in close proximity to machinery with high intensity noise levels.
Use proper care and good procedures in handling, lifting, installing, operating, and maintaining the equipment.
Other potential hazards to safety may be associated with operation of this equipment. All personnel working in or passing
through the area should be warned by signs and trained to exercise adequate general safety precautions.
Hearing protection may be required depending on silencing capabilities.
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IMPORTANT
In order to assure you of the full benefits of our product warranty, please complete, tear out and return the warranty
registration card located on the back cover of this manual, or you can register your product online at:
http://vacuum.tuthill.com/product_registration
WARNING
Keep body and
clothing away from
machine openings.
WARNING
Hearing
Protection
Required
CAUTION
Do not
operate without
guards in place.
CAUTION
Do not
touch hot
surfaces.

3
TABLE OF CONTENTS
SECTION PAGE
SAFETY PRECAUTIONS 2
INTRODUCTION 4
OPERATING CHARACTERISTICS 4
OPERATING LIMITATIONS 4
SPECIFICATIONS TABLE 5
INSTALLATION 5
PROTECTIVE MATERIALS 5
SAFETY 5
START-UP CHECKLIST 6
FOUNDATION 6
LOCATION 6
MOUNTING STRESS 6
BLOWER AIR INTAKE 7
MOTOR DRIVES 7
DIRECT COUPLED 7
V-BELTS 7
ELECTRICAL CONNECTIONS 8
RELIEF VALVES 8
PIPING 8
LUBRICATION (SPLASH) 8
FREQUENTLY ASKED QUESTIONS REGARDING LUBRICATION 9
OPERATION 9
RECOMMENDED SHUTDOWN PROCEDURE TO MINIMIZE RISK OF FREEZING OR CORROSION 9
LONG TERM STORAGE 10
MAINTENANCE 10
PREVENTATIVE MAINTENANCE 10
TROUBLESHOOTING 11
REPAIR AND REPLACEMENT PARTS 12
SERVICE 12
DISASSEMBLY AND REASSEMBLY INSTRUCTIONS 12-13
DISASSEMBLY (3200 AND 4600) 12
ASSEMBLY (3200 AND 4600) 13
GEAR END ASSEMBLY (3200 AND 4600) 13
DRIVE END (FREE END) ASSEMBLY (3200 AND 4600) 13
DISASSEMBLY AND REASSEMBLY (6000) 13
ASSEMBLY CLEARANCES 14
RECOMMENDED LUBRICANTS FOR ROTARY BLOWERS AND VACUUM BOOSTERS 15
CUTAWAY DRAWINGS AND PARTS LISTS 16-17
WARRANTY 18

4
INTRODUCTION
CONGRATULATIONS on your purchase of a new Qx®Rotary Positive Displacement Air 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 blower is stored outdoors be sure to protect it from weather and corrosion.
Qx blowers are built to exacting standards and if properly installed and maintained will provide many years of reliable service. We
urge you to take time to read and follow every step of these instructions when installing and maintaining your blower. We realize
getting any new piece of equipment up and running in as little time as possible is imperative to production, so we have tried to make
these instructions as straightforward as possible.
WARNING: Serious injury can result from operating or repairing this machine without first reading the service
manual and taking adequate safety precautions.
IMPORTANT: Record the blower model and serial number of your machine in the OPERATING DATA FORM on the inside back cover
of this manual. You will save time and expense by including this reference identification on any replacement part orders, or if you
require service or application assistance.
OPERATING CHARACTERISTICS
Qxblowers are rotary positive displacement type units with tri-lobe rotors rotating in opposite directions within a housing closed at
the ends by end plates. The pumping capacity is determined by size, operating speed, and differential pressure conditions.
Effective sealing of the inlet to the discharge is accomplished through the use of very small operating clearances. The resulting
absence of moving contact eliminates the need for any internal lubrication. 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
two 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
ot the blower discharge port, or upstream of the blower inlet port.
Air moves not between the rotors but between the rotors and the side of the housing. Also, the machine is bi-directional, meaning that
the direction of rotation of the blower can make either side the inlet or discharge. See also Figure 1, Flow Direction by Rotation.
Blowers must be protected by cut-in switches or with bypass valving to limit differential pressure across the blower. This is described
in greater detail in the Operating Limitations section, below. When a belt drive is employed blower speed can usually be adjusted
to obtain desired capacity by changing the diameter of one or both sheaves, or by using a vari-speed motor pulley.
OPERATING LIMITATIONS
To permit continued satisfactory performance, a blower must be operated within certain conditions. The manufacturer’s warranty
is contingent on such operation. Maximum limits for temperature and speed are specified here for various blower sizes when
operated under the standard atmospheric conditions. Do not exceed these limits.
EXAMPLE: Seldom does the operation of a blower result in pressure differentials large enough to strain the blower drive train
(bearings, gears, and seals). Typically, the maximum allowable temperature limit (the limit is a function of the temperature rise as
well as the inlet temperature), for any particular blower may occur well before the maximum speed or allowable power rating is
reached. Temperature rise then becomes the limiting condition. The operating limit is to be determined by the maximum rating
reached first, and it can be any one of the three: temperature, speed, or horsepower.
NOTE: Specially ordered blowers with non-standard construction, or with rotor end clearances greater than shown in this manual,
will not have the operating limits specified here. Contact your Tuthill Vacuum & Blower Systems sales representative for specific
information.

5
SPECIFICATIONS TABLE
MODEL SERIES
PORT SIZE
INCHES / mm
APPROX. OIL CAPACITY
QUARTS / LITERS MAX. ALLOWABLE
DISCHARGE TEMP.
° F / ° C
MAX. TEMP.
RISE
° F / ° C
MAX.
PRESSURE
PSIG
MAX.
VACUUM
in. Hg / mbar
MAX.
RPMVERTICAL FLOW HORIZONTAL FLOW
3203
3205
3208
3213
AP
2 / 51
3 / 76
4 / 102
4 / 102
0.68 / 0.64 0.38 / 0.36 445 / 229 325 / 163 18 17 / 576 4800
4606
4610
4616
AP
4 / 102
6 / 152
6 / 152
1.82 / 1.1 1.07 / 1.7 445 / 229 325 / 163 18 17 / 576 4000
6009
6015
6024
AP
8 / 203
8 / 203
10 / 254
4.68 / 4.4 2.63 / 2.5 445 / 229 325 / 163 18 17 / 576 3200
INSTALLATION
CAUTION: Customers are cautioned to provide adequate protection, warning and safety equipment necessary to
protect personnel against hazards involved in the installation and operation of this equipment in the system or
facility.
WARNING: Do not use air blowers on explosive or hazardous gases. Each size blower has limits on pressure
differential, running speed, and discharge temperature, which must not be exceeded. Consult Specifications
Table.
PROTECTIVE MATERIALS
Remove protective materials from the shaft.
Remove the protective covers from the inlet and outlet ports and inspect the interior for dirt and foreign material.
WARNING: Keep hands, feet, foreign objects, and loose clothing from inlet and outlet openings to avoid injury or
damage if lobes are to be rotated at this point.
SAFETY
Blower housing and associated piping or accessories may
become hot enough to cause major skin burns on contact.
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, and that the motor
controls are locked out and have been properly tagged before
proceeding.
WARNING: Avoid extended exposure in close
proximity to machinery with high intensity noise
levels. Always wear adequate ear protection.
Use proper care and good procedures in
handling, lifting, installing, operating, and
maintaining the equipment.
CAUTION: Use proper care and good procedures
in handling, lifting, installing, operating and
maintaining the equipment.
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Figure 1 - Flow Direction by Rotation

6
START-UP CHECKLIST
We recommend that these startup 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
After maintenance work has been performed
After blower has been moved to a new location
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DATES CHECKED:
 Check the unit for proper lubrication. Proper oil level cannot be over-emphasized. Refer to the Lubrication section. Please
see Recommended Lubricants for information on acceptable lubricants for your product.
 Check 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.
 “Bump” the unit with the motor to check rotation (counter-clockwise [CCW] when facing 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, refer to the Troubleshooting chart.
WARNING: When touching the blower or motor during operation, make certain that loose clothing, long
hair, neckties, loose shoelaces, rags, etc. are secured snugly and cannot accidentally dangle into rotating
elements such as shafts, belts, and sheaves.
 Apply the load and observe the operation of the unit for one hour.
 If minor malfunctions occur, discontinue operation and refer to the Troubleshooting chart.
FOUNDATION
Your blower does not need a special foundation, however it does require a solid, level floor and adequate frame support.
LOCATION
Install the unit in a protected indoor location, if possible. However, an unprotected outdoor installation will be satisfactory if correct
lubrication for expected temperatures is provided (see recommended lubrication section). Just before starting the installation,
remove plugs or covers from inlet and discharge connections. Inspect for dirt or foreign objects inside machine, then turn drive
shaft by hand to make sure it rotates freely. Mount in a level position. Use of a rigid, solidly supported, structurally sound baseplate
is recommended. Make sure feet rest evenly on the plate before fastening down. Twisting or cramping the blower in mounting will
cause rotor contact and binding during operation.
A unit that is factory mounted on a base, should not require the above adjustments. However, since the assembly can become
twisted in shipping or installation, checking for soft foot should be done after installation of the base. Shims may be needed for
alignment. Loosen the foot hold-down screws to check foot contact with the mounting surface. The base should be mounted on a
solid foundation or heavy flooring, 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 cases. Use of vibration isolators or
vibration absorbing materials can be effective in overcoming this problem. To avoid casing distortion, the treatment used should
be applied under the motor-blower common mounting plate or base, rather than directly under the feet alone. Piping should be
accurately squared with the blower and supported independently. 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, insure that an inlet filter is used.
Make provisions to clean the filter of collected debris after a few hours of operation and periodically thereafter.
MOUNTING STRESS
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. Care should be taken to evenly
tighten the mounting bolts to not impart undue stress into the blower. Stress can be checked in a free state with feeler stock or
verified on a previously installed blower with the aid of a dial indicator. Less than .002” (.05 mm) spring or gap should be found.

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BLOWER AIR INTAKE
To minimize maintenance, supply your blower with the cleanest air possible. It is important that the air does not contain any
flammable or toxic gases, as the blower will concentrate these gases. This could result in damage to the unit and surrounding
property, lead to personal injury or death.
WARNING: Do not use air blowers on explosive or hazardous gases. Each size blower has limits on pressure
differential, running speed, and discharge temperature. These limits must not be exceeded.
If it is necessary to take air from a remote source, such as in a vacuum application, the piping should be at least the same diameter
of the blower inlet. For distances greater than 20 feet (6 m) the pipe diameter should be enlarged to reduce inlet restriction.
Excessive restriction will reduce the efficiency of the blower and elevate its discharge temperature. The piping used should also
be corrosion resistant, and free of scale and dirt. The inlet should be covered to keep out precipitation, insects, and small animals.
Vacuum kits are available.
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 shafts to the coupling in accordance with the coupling manufacturer’s
instructions. blowers shipped with motor directly coupled and mounted on a common base have been aligned prior to shipment
and normally no further alignment is necessary. However, alignment should be checked and adjustments made if necessary prior
to starting the unit.
V-BELTS
If the motor and blower are V-belt connected, the sheaves on both motor and blower shafts, should be as close to the shaft bearings
as possible. Blower sheave is not more than 1/4” (6.5 mm) from the blower drive end cover. The drive sheave is as close to the driver
bearing as possible. Care should be taken when installing sheaves on the blower and motor shafts. The face of the sheave should
be accurately in line to minimize belt wear.
Adjust the belt tension to the manufacturer’s specifications using a belt tension tester. New belts should be checked for proper
tension after 24 hours of run time. When manufacturer data is not available industry guidelines are 1/64” deflection for each inch of
span at 8 to 10 pounds of force in the center of the belt. (Also see Figure 3).
Insufficient tensioning is often indicated by slipping (squealing) at start up. Belt dressing should not be used on V-belts. Sheaves and
V-belts should remain free of oil and grease. Tension should be removed from belts if the drive is to be inactive for an extended period
of time. For more specific information consult the drive manufacturer.
In a V-belt drive, the blower sheave must fit its shaft accurately, run
true, and be mounted as close to the bearing housing as possible to
minimize bearing loads. (Also see Figure 3)
A tight or driving fit will force the drive shaft out of its normal position
and cause internal damage. A loose fit will result in shaft damage or
breaking. The motor sheave must also fit correctly and be properly
aligned with the blower sheave.
Adjust motor position on its sliding base so that belt tension is in
accordance with drive manufacturer’s instructions. Avoid excessive
belt tension at all times. Re-check tension after the first ten hours of
operation and periodically thereafter to avoid slippage and loss of
blower speed.
Check blower after installation and before applying power by rotating the
drive shaft by hand. If it does not rotate freely, look for uneven mounting,
piping strain, excessive belt tension, or coupling misalignment. Check
blower at this time to insure oil was added to reservoirs.
Figure 3. General appearance of V-belt drive
Too Tight
Slight Bow Too Loose
Figure 4. Proper tension for a V-belt drive
20/64” = 5/16” (8 mm)
20”
(50.8 cm)
8-10 lbs.
(3.6-4.5 kg)

8
ELECTRICAL CONNECTIONS
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 each component being wired. Turn the machine by hand after wiring is completed to determine
that there are no obstructions, and if the blower turns freely momentarily start the unit to check the direction of rotation. The air flow
direction can be reversed by reversing the appropriate motor leads.
RELIEF VALVES
We recommend the use of relief valves to protect against excessive pressure or vacuum conditions. This valve should be tested at
initial start-up to be sure they are properly adjusted to relieve at or below the maximum pressure differential rating of the blower.
CAUTION: 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, coupling misalignment
or any other cause for binding. If blower is removed and still does not rotate freely, check inside the blower
housing for foreign material.
PIPING
Inlet and outlet connections on all blowers are large enough to handle maximum volume with minimum friction loss.
Maintain same diameter piping.
Silencers must not be supported by the blower.
Stress loads and bending moments must be avoided.
Be certain all piping is clean internally before connecting to the blower. We recommend placing a 16-mesh wire screen backed with
hardware cloth at or near the inlet connections for the first 50 hours of use until the system is clean. Make provisions to clean the
screen after a few 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 air flow piping configuration is easily achieved by
rearranging the mounting feet position.
WARNING: Do not operate equipment without adequate silencing devices since high noise level may cause
hearing damage. (Reference OSHA Standards).
LUBRICATION (SPLASH)
Before starting the unit, fill oil reservoirs as instructed below:
Remove fill plugs or breathers from gear (drive) end and free (non-drive) end plates.
Pour oil through fill hole until oil appears in sight glass. Slowly bring oil up to center of glass. Repeat for both end plates. Each
oil sump must be filled independently.
Re-seal plugs and reinstall in end plates.
Oil levels should be checked frequently. Unit must be shut down to properly check oil levels.
PLEASE NOTE THE FOLLOWING:
Time lapse between oil changes will vary depending on operating conditions.
Higher blower operating temperatures are directly related to higher oil temperatures.
Every Tuthill Vacuum & Blower Systems blower has been factory tested, oil drained, and shipped dry.
Oil reservoirs must be filled to proper level before operation.
Lubricants approved for use in Tuthill blowers are shown on page 15.
Add oil in the quantity shown in the specifications table on page 5.
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1.
2.
3.
4.
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9
FREQUENTLY ASKED QUESTIONS
REGARDING LUBRICATION
What are the perceived modes of failure when units are run beyond
the specified duty cycles?
Several things are happening as the lubricant goes through the
unit. 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. Our published cycles
are based on worst-case conditions.
What is the functional detriment if the “wrong oil” is used?
The lubricant is selected based on bearing and gear speed, and operating temperature. Too light of a lubricant 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. Since it is thicker, it will not flow 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 their toll
and the lubricant will thicken, making matters worse. The unit will run hotter and the wear on running surfaces will increase.
Generally, the lubricant will appear dirtier, this is actually material rubbed off the unit’s components. The discoloration comes from
overheating the additive package. An indicator of the breakdown of a lubricant is the increase in the TAN (Total Acid Number) and
a change in the base viscosity of ten percent.
OPERATION
Before starting the blower for the first time under power, recheck the installation thoroughly to reduce the likelihood of troubles. Use
the following list as a guide, but also consider any other special conditions in your installation.
Be certain no bolts, rags, or dirt have been left in blower.
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 filter. This also applies to indoor use.
If installation is not recent, check blower leveling, drive alignment, belt tension, and tightness of all mounting bolts.
Be certain the proper volume of oil is in the oil reservoir chambers.
Be certain the driving motor is properly lubricated, and that it is connected through suitable electrical overload devices.
With electrical power off and locked out to prevent accidental starting, rotate blower shaft several times by hand to make sure
blower is rotating freely. Unevenness or tight spots is an indication of a problem that should be corrected before progressing.
Check motor rotation by momentarily pushing the start button and check flow direction of the blower. Reverse the motor
connections if flow is in the wrong direction.
Initial operation should be carried out under “no load” conditions by opening all valves and venting the discharge to atmosphere, if
possible. Then start motor briefly, listen for unusual noises, and check that the blower coasts freely to a stop. If no problem appears,
repeat this check, and let the motor run a little longer. If any questions exist, investigate before proceeding further. Assuming all tests
are satisfactory, the blower will now be ready for continuous full load operation. During the first several days, make periodic checks
to determine that 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 first opportunity, stop the blower and clean or remove inlet filter. Also, recheck
leveling, coupling alignment or belt tension, and mountlng bolts for tightness.
RECOMMENDED SHUTDOWN PROCEDURE TO MINIMIZE RISK OF FREEZING OR CORROSION
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 down time. Under atmospheric conditions producing
rapid corrosion, the blower should be protected immediately. When high humidity or moisture is present in an air piping system,
1.
2.
3.
4.
5.
6.
7.
Figure 5. Locations of Oil Fill, Oil Drain Plug, and Oil Sight Glass
Oil Fill
Oil Sight
Glasses
Oil Drain
Plugs
NOTE: This illustration shows oil fill, oil drain, and sight
glass locations on both ends.

10
condensation of water can occur after the blower is shut down and the blower begins to cool. This creates an environment favorable
to corrosion of the iron internal surfaces, or in cold weather, the formation of ice. Either of these conditions can close the operating
clearances, causing the blower to fail upon future start-up.
The shutdown procedure outlined below minimizes the risk of moisture condensation, corrosion, and freezing. Care must be taken
to avoid overloading or overheating.
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.
For carpet cleaning applications, after the work is completed, simply allow the blower to run a few (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.
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 prior to shutdown. The lubricant will provide an excellent protective coating on the
internal surfaces. If using a spray lubricant, exercise care to prevent the applicator tube from getting sucked into the blower.
The applicator tube will damage the blower, most likely to the point that repair would be required.
* 3-in-One and WD-40 are registered trademarks of WD-40 Company.
LONG TERM STORAGE
Spray the interior (lobes, housing and end plates) with rust preventative.
Apply a rust preventative grease to the drive shaft.
Attach a dessiccant bag to either of the covers to prevent condensation from occuring inside the blower. Make sure any
dessiccant bag (or bags) is so attached to the covers that they will be removed when dust cover is removed. It is imperative that
these be removed before startup of the blower.
Store the blower in an air conditioned and heated building if at all possible. At least insure as dry conditions as possible.
If possible, rotate the drive shaft by hand at least monthly in order to prevent the seals from setting in one position.
MAINTENANCE
A good maintenance program will add years of service to your blower. A newly installed blower should be checked frequently
during the first month of operation, especially lubrication. Check oil level in both the drive end and gear end of the blower and add
oil as needed. Complete oil changes are recommended every 1000 operating hours, or more frequently depending on the type of
oil and oil operating temperature.
PREVENTATIVE MAINTENANCE
The following is recommended as a minimum maintenance program.
DAILY WEEKLY MONTHLY
Check and maintain oil level,
and add oil as necessary.
Check for unusual noise or
vibration (See Troubleshooting)
1.
2.
Clean all air filters. A clogged
air filter can seriously affect the
efficiency of the blower and cause
overheating and oil increased oil
usage. Replace if necessary.
1. Inspect the entire system for leaks.
Inspect condition of oil and change if necessary.
Check drive belt tension and tighten if
necessary.
1.
2.
3.
1.
2.
3.
4.
1.
2.
3.
4.
5.

11
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 chart below lists symptoms that may occur along with probable causes and remedies.
SYMPTOM PROBABLE CAUSE REMEDIES
Loss of oil
Gear housing not tightened properly. Tighten gear housing bolts.
Lip seal failure. Disassemble and replace lip seal.
Insufficient sealant. Remove gear housing and replace sealant. (See Disassembly section on
page 12)
Loose drain plug. Tighten drain plug.
Excessive
bearing or
gear wear
Improper lubrication. Correct oil level. Replace dirty oil. (See Lubrication section on page 8)
Excessive belt tension. Check belt manufacturer’s specifications for tension and adjust accordingly.
Coupling misalignment. Check carefully, realign if necessary.
Lack of
volume
Slipping belts. Check belt manufacturer’s specifications for tension and adjust accordingly.
Worn lobe clearances. Check for proper clearances. (See Assembly Clearances on page 14)
Speed too low. Increase blower speed within limits.
Obstruction in piping. Check system to assure an open flow path.
Knocking
Unit out of time. Re-time.
Distortion due to improper mounting
or pipe strains. Check mounting alignment and relieve pipe strains.
Excessive pressure differential. Reduce to manufacturer’s recommended pressure. Examine relief valve and
reset if necessary.
Worn gears. Replace timing gears. (See Disassembly section on page 12)
Excessive
blower
temperature
Too much or too little oil in gear
reservoir. Check oil level. (See Lubrication section on page 8)
Too low operating speed. Increase blower speed within limits.
Clogged filter or silencer. Remove cause of obstruction.
Excessive pressure differential. Reduce pressure differential across the blower.
Elevated inlet temperature. Reduce inlet temperature.
Worn lobe clearances. Check for proper clearances. (See Assembly Clearances on page 14)
Rotor end or
tip drag
Insufficient assembled clearances. Correct clearances (See Assembly Clearances on page 14)
Case or frame distortion. Check mounting and pipe strain.
Excessive operating pressure. Reduce pressure differential.
Excessive operating temperature. Reduce pressure differential or reduce inlet temperature.
Vibration
Belt or coupling misalignment. Check carefully, realign if necessary.
Lobes rubbing. Check cylinder for hot spots, then check for lobe contact at these points.
Correct clearances. (See Assembly Clearances on page 14)
Worn bearings or gears. Check condition of gears and bearings; replace if necessary.
Unbalanced or rubbing lobes. Possible buildup on casing or lobes, or inside lobes. Remove buildup and
restore clearances.
Driver or blower loose. Check mounting and tighten if necessary.
Piping resonance. Check pipe supports, check resonance of nearby equipment, check
foundation.

12
REPAIR AND REPLACEMENT PARTS
Regular inspection of your blower and its installation, along with complete checks on operating conditions will pay dividends in
added life and usefulness. Particular attention should be paid to lubrication of timing gears and bearings in accordance with the
Lubrication section on page 8. Also, the drive should be serviced per manufacturer’s instructions and lubricate the coupling or
check belt drive tension. By use of thermometers and gauges, make sure that blower operating temperature and pressure remain
within allowed limits.
Should adjustments or replacement eventually be needed, these can often be performed locally as described in this book after
obtaining required parts. Personnel should have a good background of mechanical experience and be thoroughly familiar with
these instructions. Major repairs not covered in this book should be referred to the nearest Tuthill Vacuum & Blower Systems
service representative. When ordering parts, give all nameplate information, plus the item numbers and names as taken from the
appropriate assembly drawing in this book.
When ordering repair parts or replacement units, you should provide the model number and serial number of unit as well as the
description of the part. Repair kits are available, consult factory.
SERVICE
Tuthill Vacuum & Blower Systems offers service on all repair parts shipments. If any trouble occurs to a unit within the warranty
period, we suggest you immediately contact the factory for assistance. When returning units under warranty, transportation charges
must be prepaid to:
Tuthill Vacuum & Blower Systems
4840 West Kearney Street
Springfield, Missouri 65803
Additionally, the factory will not accept any unit that arrives without authorization. Contact the Service Department for return
authorization.
DISASSEMBLY (3200 AND 4600)
Remove all oil drain plugs and vent plugs from both ends of the blower. Before removing any parts, match-mark each component
with a punch. This will allow the blower to be reassembled with the components in the same position. Match-mark the covers,
endplate, housing, and both rotors.
Remove drive key from drive shaft. Remove gear end cover. Remove drive end cover. This is best accomplished by using two
small pry bars at the dowel pins. Tap on cover with a mallet while putting pressure on the cover with the pry bar. The cover will
slowly move off the dowel pins. Inspect the drive shaft for grooves and burrs. Remove drive shaft seal from drive end cover.
Carefully remove the drive seal wear ring from the drive shaft. The simplest method to do so is to use a cut off wheel and a die
grinder. The hardened ring will typically snap open once it is cut most of the way through.
Remove washer from the rotor shafts on the gear end. Remove oil slinger assemblies.
Rotate unit. Remove bolts and washers from rotor shafts on the gear end. Remove the timing gear bolts completely from the
driven rotor. Remove the timing gear from the rotor shaft by using a gear puller. See figure 6. Rotate the gear as it is being
removed to prevent binding. Inspect gear teeth for wear and pitting. Inspect rotor shaft keyway for wear and damage.
Remove bolts from free end endplate.
Use 4 jacking screws on the endplate, apply even pressure to the jack screws to push the end plate from the housing. Remove
screws. Remove retainer plate. Push rotors out of gear end endplate. Remove bearings and remove bearing shield. Save
shims and measure for proper clearance for rebuilding the unit. Remove seal assembly from the endplate. OR Using a
large Arbor press, orient the blower drive shaft down, supported
by the ports and use a straight bar (such as a puller bar shown in
figure 6) to put even pressure on the gear end of the rotors. Once
the rotors are pressed to flush with the bearings, insert metric bolts in
to the rotor or use a spacer slightly smaller than the shaft diameter to
press the rotors through the bearings. Save shims and measure for
proper clearance for rebuilding the unit. Remove seal assembly from
endplate. Reverse the machine to drive shaft up and press each rotor
free from the Drive End endplate.
Remove seals from the rotors with a plastic mallet or by tapping
towards the end of the rotor shaft.
Remove bearings, bearing shield, and seal assembly out of free end
endplates.
Use a hammer and brass bar to drive bearing and seal housing from
endplates. Inspect bearing wear pattern and seal for wear and heat
marks. Clean all parts before inspecting. Check the rotors’ bearing
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Figure 6. Bar Puller Illustration

13
and seal fits for bearing spinning
along with seal housing on the rotor
shaft. Check bearing bores and seal
bores in the endplate for spinning of
bearings and seal housing.
ASSEMBLY (3200 AND 4600)
A maintenance kit is available from Tuthill
Vacuum and Blower Systems. This kit
contains all the components that are
replaced during a normal blower overhaul.
As a minimum, these parts should be on
hand prior to assembly. Be certain to have
your serial number available when you
contact the factory.
Check all parts to insure they are clean
and free of burrs or nicks that may have
occured when the blower was being
disassembled. Check the repair kit for the
correct parts needed to complete the assembly of the unit. Make sure you have the
proper tooling and training required to assemble the blower. Take the proper time to
read the instruction manual before you begin.
GEAR END ASSEMBLY (3200 AND 4600)
Seat rotors on a fixture with the gear end of the rotors upward and in the “T”
position. Make sure the drive rotor is in the correct location for the proper flow and
rotation required for the application.
Install endplate and housing assembly onto rotors. Using a seal pressing tool,
press seal assembly onto rotor shafts and into bores of endplates. Add shims
as needed. Install seal slinger. Add shims as needed. Press oil shild onto rotor
shafts. The oil shield is part of the seal assembly, but it must be pressed on after the seal assembly is installed.
Install bearings press until seated. Install retainer and bolts. Install keys into shaft. Install gear assembly. Install solid gear onto
long-tail drive rotor and two-piece gear onto the driven rotor. Install locks. Install screws.
DRIVE END (FREE END) ASSEMBLY (3200 AND 4600)
Turn unit over. Set on face of gears and with feeler gauges check the gear end for proper clearances.
Consult Figure 10, regarding bearing bore stack up and seal measurement.
Put depth micrometer on housing and measure the distance to rotor face or use flat block and feeler gauge. Add shims to get
proper free end clearances. Install O-ring
into groove.
Install endplate onto unit dowels. Bold
down with screws. With feeler gauge check
free end clearance. Adjust with shims
appropriately.
Install seal assembly onto rotor shafts and
into endplates. Press slinger onto shaft.
Press oil shield onto shaft. Install bearings.
Install slingers. Tighten set screws in to
shaft. Install washer and install flathead
cap screw into end of shaft.
DISASSEMBLY AND REASSEMBLY
(6000)
Consult the Factory for diassembly and
reassembly instructions for Qx 6000 model
blowers.
1.
2.
3.
1.
2.
3.
4.
5.
Figure 9.
Checking Rotor Interlobe Clearance
A
A
A
A
B
B
B
B
A
A
B
B
Long
Feeler
Gauge
Record A-A Reading Here
Record
B-B
Reading
Here
A
B
A
A
B
B
A
A
A
B
B
B
DRIVE DRIVEN
DRIVE DRIVEN
3-LOBE MODELS
Figure 8. 3 Lobe Keyway Position
Figure 7. Gear Alignment
.004”
GEAR END CLEARANCE
A
A
B
DETAIL A
SCALE 3:1
EXAMPLE:
A = 1.511 B = 1.495
C = 0.010 E = 0.004
1.511 - (1.495 + 0.010) = 0.006
0.006 + 0.004 = 0.010 (HEIGHT OF SHIM STACK-UP)
A: DIMENSION FROM END PLATE
FACE TO BEARING BORE STEP
B: SEAL ASSEMBLY HEIGHT
C: BEARING SHIELD THICKNESS (0.010")
D: DIMENSIONAL DIFFERENCE BETWEEN
BEARING BORE LIP AND SEAL ASSEMBLY
HEIGHT PLUS BEARING SHIELD
THICKNESS
E: DESIRED GEAR END CLEARANCE
A - (B + C) = D
D + E = HEIGHT OF SHIM STACK-UP
Figure 10. Bearing Bore Stack Up and Seal Measurement

14
NOTES:
ASSEMBLY CLEARANCES
MODEL GEAR END DRIVE END TOTAL CLEARANCE INTERLOBE TIP TO DOWEL TIP TO PORT
3203 .003 - .006
.08 - .15
.005 - .007
.13 - .18
.008 - .013
.20 - .33
.004 - .008
.10 - .20
.002 - .005
.05 - .13
.005 - .007
.13 - .18
3205 .003 - .006
.08 - .15
.008 - .010
.20 - .25
.011 - .016
.28 - .41
.004 - .008
.10 - .20
.002 - .005
.05 - .13
.005 - .007
.13 - .18
3208 .003 - .006
.08 - .15
.011 - .014
.28 - .36
.014 - .020
.36 - .51
.004 - .008
.10 - .20
.002 - .005
.05 - .13
.005 - .007
.13 - .18
3213 .003 - .006
.08 - .15
.016 - .019
.41 - .48
.019 - .025
.48 - .64
.004 - .008
.10 - .20
.004 - .008
.10 - .20
.009 - .011
.23 - .28
4606 .003 - .006
.08 - .15
.009 - .012
.23 - .30
.012 - .019
.30 - .48
.005 - .011
.13 - .28
.002 - .005
.05 - .13
.006 - .008
.15 - .20
4610 .003 - .006
.08 - .15
.014 - .017
.36 - .43
.017 - .024
.43 - .61
.005 - .011
.13 - .28
.002 - .005
.05 - .13
.006 - .008
.15 - .20
4616 .003 - .006
.08 - .15
.020 - .023
.51 - .58
.023 - .030
.58 - .76
.005 - .011
.13 - .28
.004 - .008
.10 - .20
.009 - .011
.23 - .28
6009 .002 - .005
.05 - .013
.018 - .022
.46 - .56
.022 - .025
.56 - .64
.015 - .016
.38 - .41
.004 - .007
.10 - .18
.007 - .009
.18 - .23
6015 .002 - .005
.05 - .013
.020 - .024
.51 - .61
.024 - .027
.61 - .69
.015 - .016
.38 - .41
.004 - .007
.10 - .18
.007 - .009
.18 - .23
6024 .002 - .005
.05 - .013
.021 - .025
.53 - .64
.025 - .028
.64 - .71
.015 - .016
.38 - .41
.004 - .007
.10 - .18
.009 - .011
.23 - .28

15
RECOMMENDED MINERAL BASED LUBRICANTS
AMBIENT
TEMPERATURE SHELL CITGO CHEVRON TEXACO EXXONMOBIL
0° to 32° F
(-18° to 0° C)
TELLUS®68
(ISO 68)
A/W 68
(ISO 68)
RANDO HD 68
(ISO 68)
DTE HEAVY MEDIUM
(ISO 68)
32° to 90° F
(0° to 32° C)
TELLUS®100
(ISO 100)
A/W 100
(ISO 100)
RANDO HD 100
(ISO 100)
DTE HEAVY
(ISO 100)
90° to 120° F
(32° to 50° C)
TELLUS®150
(ISO 150)
A/W 150
(ISO 150)
RANDO HD 150
(ISO 150)
DTE EXTRA HEAVY
(ISO 150)
RECOMMENDED MINERAL BASED, FOOD GRADE LUBRICANTS
AMBIENT
TEMPERATURE
Lubricant meeting U. S. FDA regulation 21 CFR 178.3570
governing petroleum products which may have incidental
contact with food, and USDA H1 requirements
Lubricant meeting U.S. FDA regulations 21 CFR 172.878 and
178.3620(a) for direct and indirect food contact
0° to 32° F
(-18° to 0° C)
CITGO CLARION®A/W 68
(ISO 68)
CITGO CLARION®350 FOOD GRADE
(ISO 68)
32° to 90° F
(0° to 32° C)
CITGO CLARION®A/W 100
(ISO 100) CONSULT FACTORY
90° to 120° F
(32° to 50° C) CONSULT FACTORY CONSULT FACTORY
RECOMMENDED SYNTHETIC BASED LUBRICANTS*
AMBIENT
TEMPERATURE TUTHILL EXXONMOBIL SHELL
0° to 32° F
(-18° to 0° C)
PneuLube™
(ISO 100)
SHC 626
(ISO 68)
OMALA®RL 68
(ISO 68)
32° to 90° F
(0° to 32° C)
SHC 627
(ISO 100)
OMALA®RL 100
(ISO 100)
90° to 120° F
(32° to 50° C)
SHC 629
(ISO 150)
OMALA®RL 150
(ISO 150)
* Blowers used in oxygen-enriched service should use only Castrol Brayco 1726 Plus non-flammable, PFPE synthetic 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.
RECOMMENDED LUBRICANTS FOR ROTARY BLOWERS AND VACUUM BOOSTERS
NOTES:

16
22
25
26 27
28
29
GEAR END COVER HIDD
31
32
1
3
245 6
7
8
9
1012
11 1315
14 30
16
17
19 20
21
23
24
CUTAWAY DRAWING FOR Qx-3200 AND Qx-4600 SERIES BLOWERS
PARTS LIST FOR Qx-3200 AND Qx-4600 SERIES BLOWERS
ITEM
NO.
PART
DESCRIPTION QTY
1 HOUSING 1
2 DRIVEN ROTOR 1
3 DRIVE ROTOR 1
4 ENDPLATE 1
5 DRIVE COVER 1
6 GEAR END COVER 1
7 GEAR ASSEMBLY 1
8 GEAR SPACER 1
9 GEAR KEY 2
10 BALL BEARING 2
11 BEARING SHIELD 4
12 CYLINDER BEARING 2
13 SEAL ASSEMBLY 4
14 DRIVE COLLAR 1
15 OIL SLINGER 1
16 LIP SEAL 1
ITEM
NO.
PART
DESCRIPTION QTY
17 SEAL WEAR RING 1
18 BEARING SHIM —
19 HOUSING SHIM —
20 O-RING 1
21 DOWEL PIN 4
22 CAP SCREW 26
23 ROTOR WASHER 3
24 FLAT CAP SCREW 3
25 OIL SIGHT GLASS 4
26 HEX PIPE PLUG 2
27 OIL DRAIN PLUG 4
28 SOCKET PIPE PLUG 8
29 SQUARE PIPE PLUG 2
30 SET SCREW 2
31 WASHER 4
32 CAP SCREW 4

17
CUTAWAY DRAWING FOR Qx-6000 SERIES BLOWERS
31
25
30
6
26
2
15
5
3
11 13
4
49
101819
7
112
23
9
8
27
1416
17 20
21 22
32
33 24 29
28
FREE END COVER HIDDEN
PARTS LIST FOR Qx-6000 SERIES BLOWERS
ITEM
NO.
PART
DESCRIPTION QTY
1 HOUSING 1
2 DRIVEN ROTOR 1
3 DRIVE ROTOR 1
4 ENDPLATE 2
5 DRIVE COVER 1
6 GEAR END COVER 1
7 GEAR ASSEMBLY 1
8 GEAR SPACER 1
9 TIMING GEAR KEY 2
10 BALL BEARING 2
11 BEARING SHIELD 4
12 CYLINDER BEARING 2
13 SEAL ASSEMBLY 4
14 DRIVE COLLAR 1
15 OIL SLINGER 1
16 SET SCREW 2
17 OIL SLINGER SPACER 1
ITEM
NO.
PART
DESCRIPTION QTY
18 LIP SEAL 1
19 SEAL WEAR RING 1
20 BEARING SHIM —
21 HOUSING SHIM —
22 ORING 2
23 DOWEL PIN 6
24 CAP SCREW 16
25 CAP SCREW 20
26 ROTOR WASHER 3
27 FLAT CAP SCREW 3
28 SOCKET PIPE PLUG 8
29 HEX PIPE PLUG 6
30 OIL SIGHT GLASS 4
31 OIL DRAIN PLUG 2
32 WASHER 8
33 CAP SCREW 8

WARRANTY
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
TYPE OF APPLICATION
ATMOSPHERIC AIR OR PROCESS AIR
WITHOUT LIQUIDS PRESENT
PROCESS GASES OTHER THAN AIR,
OR ANY LIQUID INJECTED APPLICATION
New
(Qx™ models only)
30 months from date of shipment, or 24 months
after initial startup date, whichever occurs first. Consult Factory
New
(all other models)
24 months from date of shipment, or 18 months
after initial startup date, whichever occurs first
18 months from date of shipment, or 12 months
after initial startup date, whichever occurs first
Repair 12 months from date of shipment, or remaining
warranty period, whichever is greater
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

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 this product registration card.
Company
Location
City State/Province ZIP/Postal Code Country
PLEASE CHECK ONE
Pnuematic Conveying 
Food 
Vacuum 
Paper 
Wastewater 
Gas/Petrochemical 
Other
Telephone : ( )
E-mail:
Model:
Serial Number:
Date of Purchase:
Date of Startup:
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 below, or you can visit our
product registration web page at:
http://vacuum.tuthill.com/product_registration
OPERATING DATA
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. This information is also helpful when ordering spare parts.
Model No. V-Belt Size: Length:
Serial No. Type of Lubrication:
Startup Date
Pump RPM Operating Vacuum
Pump Sheave Diameter: Any other special accessories supplied or in use:
Motor Sheave Diameter:
Motor RPM HP
NOTES:

NO POSTAGE
NECESSARY
IF MAILED
IN THE
UNITED STATES
ATTN. CUSTOMER SERVICE – VACUUM PRODUCTS
TUTHILL VACUUM & BLOWER SYSTEMS
PO BOX 2877
SPRINGFIELD MO 65890-2150
POSTAGE WILL BE PAID BY ADDRESSEE
BUSINESS REPLY MAIL
FIRST-CLASS MAIL PERMIT NO. 2912 SPRINGFIELD MO