Quincy Compressor Industrial Series, QT Series, PLT Series, QT-5, Air Master Series Instruction Manual

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IndustrialIndustrial

Industrial

IndustrialIndustrial

2 Stage Compr2 Stage Compr

2 Stage Compr

2 Stage Compr2 Stage Compr

essorsessors

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Instruction Manual

This manual contains important safety information and should be made
available to all personnel who operate and/or maintain this product.
Carefully read this manual before attempting to operate or perform
maintenance on this compressor

Manual No. 50161-105

March 2008 Edition

Warranty Statement

True Blue Warranty

Quincy Compressor Two-Stage

Reed Valve Reciprocating Products

QT, PLT & AMT in PRO or MAX Configurations

WARRANTY PERIODS

Qui ncy Com pre ssor (Selle r) w arr ants ba sic
compressors on factory assembled PRO or MAX
units for five (5) years from date of start-up, provided
Purcha se r registers t he product with Quincy
Compressor and maintains the unit with Quincy
genuine parts and lubricant. Rings and gaskets are
covered for the entire five (5) year period. Suction
and discharge valves are covered for two (2) years.

The True Blue warranty covers approved parts, labor
and travel per the schedule below:

One (1) year:
Parts, Labor, and Travel - 100%
Two (2) years:
Parts, Labor, and Travel - 100%
Three (3) years:
Approved Parts and Labor - 100%
Four (4) years:
Approved Parts and Labor - 100%
Five (5) years:
Approved Parts and Labor - 100%

The complete PRO or MAX package is warranted
for two (2) years from date of start-up and includes
labor, parts and approved travel.

Normal maintenance items, such as belts, filters,
check valves and tank drains, are not warranted unless
found to be defective in material or workmanship.

GENERAL PROVISIONS

Seller warrants, to each retail Purchaser, products
of the Seller’s own manufacture, against defects in
material and workmanship under normal use and
service. With respect to products not manufactured by
the Seller, the Seller will, if reasonably practical, pass
along the warranty of the original manufacturer.

The Seller’s sole obligation under this warranty shall
be, at its option, to repair, replace or refund the
purchase price of any product or part thereof which
is deemed by the Seller to be defective, provided the
Purchaser meets all of the applicable requirements of
this warranty and none of the limitations apply.

Requirements:

1. Purchaser must register product with Seller
vi a www .quincycompressor.c om or th e
registration card provided.

2. Purchaser must maintain the compressor
with genuine Quincy Compressor parts and
lubricants for entire warranty period (proof of
purchase required).

LIMITATIONS

Notice of any alleged defect must be given to the
Seller in writing, with all identifying details (including
serial number, model number, type of equipment
and date of purchase), within thirty (30) days of
discovery, during the warranty period. If requested
by the Seller, the defective product or portion thereof
must be promptly returned to Seller for inspection.

The Seller must have the Purchaser’s warranty
registration on file at Quincy, Illinois within ten (10)
days of start-up, or this warranty may be declared
null and void.

The above warranties shall not apply to and Seller
shall not be liable for:

a. Equipment conditions caused by normal wear

and tear, abnormal conditions, accident, neglect
or misuse of equipment, improper storage or
damages resulting during shipment;

b. De viation fr om op erati ng in struc tions ,

specifications or other terms of sales;

c. Labor charges, loss or damage resulting from

improper operation, maintenance or repairs
made by person(s) other than Seller or Seller’s
authorized service station; or

d. Im proper ap plication or in stallat ion of

product.

DISCLAIMER

THIS WAR RANTY IS THE SOLE WARRANT Y
OF THE SELLER AND ANY AND ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
AN Y WA RRANT IES OF M ERCHANTABILIT Y
AND FITNESS FOR PARTICULAR PURPOSE, ARE
HEREBY SPECIFICALLY EXCLUDED. THE SELLER’S
LIABILITY FOR ANY LOSS OR DAMAGE ARISING
OUT OF OR RESULTING FROM OR IN ANY WAY
CONNECTED WITH THE PRODUCTS SHALL
NOT EXCEED PURCHASER’S PURCHASE PRICE
FOR THE PARTICULAR PRODUCT UPON WHICH
SUCH LIABILITY IS BASED, REGARDLESS OF
WHETHER SUCH LIABILITY ARISES IN CONTRACT
(INCLUDING, BUT NOT LIMITED TO, FAILURE OR
DELAY IN PERFORMANCE OR DELIVERY DUE TO
ANY CAUSE WHATSOEVER), TORT (INCLUDING,
BUT NOT LIMITED TO, NEGLIGENCE OR STRICT
LIABILITY) OR OTHERWISE. IN NO EVENT SHALL
THE SELLER BE LIABLE FOR LOSS OF PROFITS
OR REV ENUE OR FOR AN Y IN CID ENTAL,
CO NSEQU ENTIA L, INDIRECT, SPEC IAL OR
PUNITIVE DAMAGES.

Quincy Compressor

WW

ARRANTYARRANTY

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ARRANTY

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ARRANTYARRANTY

Quincy CompressorQuincy Compressor

Quincy Compressor

Quincy CompressorQuincy Compressor

Industrial Reciprocating ProductsIndustrial Reciprocating Products

Industrial Reciprocating Products

Industrial Reciprocating ProductsIndustrial Reciprocating Products

QT & PLT Industrial / Air Master Two Stage CompressorsQT & PLT Industrial / Air Master Two Stage Compressors

QT & PLT Industrial / Air Master Two Stage Compressors

QT & PLT Industrial / Air Master Two Stage CompressorsQT & PLT Industrial / Air Master Two Stage Compressors

GENERAL PROVISIONSGENERAL PROVISIONS

GENERAL PROVISIONS

GENERAL PROVISIONSGENERAL PROVISIONS

Quincy Compressor (The Seller) warrants to each retail purchaser (Purchaser) products of the Seller's own manufacture against
defects in material and workmanship. With respect to products not manufactured by the Seller, the Seller will, if practical, pass
along the warranty of the original manufacturer.

The Seller's sole obligation under this warranty shall be, at its option, to repair, replace, or refund the purchase price of any
product or part thereof which is deemed to be defective, provided the Purchaser meets all of the applicable requirements of this
warranty and none of the limitations apply.

WARRANTY PERIODSWARRANTY PERIODS

WARRANTY PERIODS

WARRANTY PERIODSWARRANTY PERIODS

Basic CompressorsBasic Compressors

Basic Compressors

Basic CompressorsBasic Compressors

Seller warrants for twelve (12) months from date of start-up or twenty-four (24) months from factory shipment, whichever occurs
first. This includes labor and approved travel. All warranty travel expense will be paid to the nearest authorized repair center.

Remanufactured BasicsRemanufactured Basics

Remanufactured Basics

Remanufactured BasicsRemanufactured Basics

Seller warrants for six (6) months from date of start-up or eighteen (18) months from date of factory shipment, whichever occurs
first. This includes labor and approved travel. All warranty travel expense will be paid to the nearest authorized repair center.

Replacement PartsReplacement Parts

Replacement Parts

Replacement PartsReplacement Parts

Seller warrants repaired or replaced parts of its own manufacture against defects in material and workmanship under normal use
and service for ninety (90) days, or for the remainder of the warranty on the product being repaired, whichever is longer.

Parts purchased outside the compressor's warranty period are warranted for ninety (90) days from the date of distributor sale,
or one (1) year from the date of shipment from the factory, whichever occurs first.

Normal maintenance items and procedures are not warranted unless found to be defective in material or workmanship, i.e. but
not limited to filters, gaskets, rings, valves and control lines.

LimitationsLimitations

Limitations

LimitationsLimitations

Notice of the alleged defect must be given to the Seller in writing with all identifying details, including serial number, model number,
type of equipment and date of purchase within thirty (30) days of discovery of same during the warranty period. If requested by
Seller, such product or product thereof must be promptly returned to Seller, freight collect for inspection.

The Seller must have the warranty registration card on file at Quincy, IL. within ten (10) days of start-up or the warranty may
be declared null and void.

The above warranties shall not apply and Seller shall not be responsible nor liable for:

(a) Consequential, collateral or special losses or damages.
(b) Equipment conditions caused by fair wear and tear, abnormal conditions, accident, neglect or misuse of equipment,

improper storage or damages resulting during shipment.
(c) Deviation from operating instructions, specifications or other terms of sales.
(d) Labor charges, loss or damage resulting from improper operation, maintenance or repairs made by person(s) other

than Seller or Seller's authorized service station.
(e) Improper application or installation of product.
(f) Warranty travel expense is not covered on QT-5 & PLT-5 compressors sold as basics.

DisclaimerDisclaimer

Disclaimer

DisclaimerDisclaimer

In no event shall Seller be liable for any claims, whether arising from breach of contract or warranty or claims of negligence

or negligent manufacture, in excess of the purchase price.

This warranty is the sole warranty of Seller and any other warranties, express, implied in law or implied in fact,

including any warranties of merchantability and fitness for particular use, are hereby specifically excluded.

Industrial / Air Master Series Quincy Compressor

50161-105, March 2008 i 3501 Wismann Lane, Quincy Ill. - 62305-3116

Contents

SECTION 1SECTION 1

SECTION 1

SECTION 1SECTION 1

Safety First ............................................................................................................................................. 1

Summary of Changes .............................................................................................................................. 3

SECTION 2SECTION 2

SECTION 2

SECTION 2SECTION 2

Description & Application ...................................................................................................................... 4

Principles of Compression Cycles ..........................................................................................................4

Principles of Lubrication Systems .........................................................................................................4

Principles of Cooling Systems ................................................................................................................5

Principles of Dryers & Filters ................................................................................................................ 5

Specifications ..........................................................................................................................................6

SECTION 3SECTION 3

SECTION 3

SECTION 3SECTION 3

Receiving Delivery .................................................................................................................................. 7

Freight Damage ...................................................................................................................................... 7

Location ..................................................................................................................................................8

Electrical Supply Requirements ............................................................................................................9

Wiring & Piping Schematics ................................................................................................................10

Mounting............................................................................................................................................... 17

System Components ............................................................................................................................. 17

Induction System .................................................................................................................................. 19

Compressed Air Discharge System ...................................................................................................... 19

SYSTEM DYNAMICSSYSTEM DYNAMICS

SYSTEM DYNAMICS

SYSTEM DYNAMICSSYSTEM DYNAMICS

INSTINST

ALLAALLA

INST

ALLA

INSTINST

ALLAALLA

SAFETYSAFETY

SAFETY

SAFETYSAFETY

TIONTION

TION

TIONTION

SECTION 4SECTION 4

SECTION 4

SECTION 4SECTION 4

Pre-Starting Checklist .........................................................................................................................23

Initial Starting & Operating ................................................................................................................24

Daily Starting Checklist ....................................................................................................................... 25

SECTION 5SECTION 5

SECTION 5

SECTION 5SECTION 5

Stopping for Maintenance .................................................................................................................... 26

Maintenance Schedule ......................................................................................................................... 26

Maintenance Schedule Checklist Sample ...........................................................................................26

Lubrication ........................................................................................................................................... 28

Pulley / Sheave Alignment & Belt Tension .........................................................................................29

Pressure Switch Adjustment ................................................................................................................ 30

Torquing Cylinder to Head Capscrews ................................................................................................. 31

Pilot Valve Adjustment Instructions .................................................................................................... 32

SECTION 6SECTION 6

SECTION 6

SECTION 6SECTION 6

Troubleshooting .................................................................................................................................... 33

SECTION 7SECTION 7

SECTION 7

SECTION 7SECTION 7

Decal Locations..................................................................................................................................... 37

MAINTENANCE & LUBRICAMAINTENANCE & LUBRICA

MAINTENANCE & LUBRICA

MAINTENANCE & LUBRICAMAINTENANCE & LUBRICA

STST

ARAR

ST

STST

REFERENCE INFORMAREFERENCE INFORMA

REFERENCE INFORMA

REFERENCE INFORMAREFERENCE INFORMA

T-UP & OPERAT-UP & OPERA

AR

T-UP & OPERA

ARAR

T-UP & OPERAT-UP & OPERA

TROUBLESHOOTINGTROUBLESHOOTING

TROUBLESHOOTING

TROUBLESHOOTINGTROUBLESHOOTING

TIONTION

TION

TIONTION

TIONTION

TION

TIONTION

TIONTION

TION

TIONTION

Industrial / Air Master Series Quincy Compressor
50161-105, March 2008 ii 3501 Wismann Lane, Quincy Ill. - 62305-3116

SECTION 1SECTION 1

SECTION 1

SECTION 1SECTION 1

Safety First

SAFETYSAFETY

SAFETY

SAFETYSAFETY

At Quincy Compressor safety is not only a primary concern, but a faithfully
performed practice. Beginning with the design stage, safety is built into “The
World’s Finest Compressor”. It is the intention of this manual to pass along the
“safety first” concept to you by providing safety precautions throughout its
pages.

“DANGER !”, “WARNING !”, and “CAUTION !” are displayed in large
bold capital letters in the left hand column to call attention to areas of vital
concern. They represent different degrees of hazard seriousness, as stated
below. The safety precaution is spelled out in bold upper and lower case letters
in the right hand column.

DANGER !

WARNING !

CAUTION !

Immediate hazards which will result in severe personal injury or
death.

Hazards or unsafe practices that could result in personal injury or
death.

Hazards or unsafe practices which could result in minor personal
injury, product or property damage.

Each section of this instruction manual, as well as any instructions supplied
by manufacturers of supporting equipment, should be read and understood
prior to starting the compressor. If there are any questions regarding any part
of the instructions, please call your local Quincy distributor, or the Quincy
Compressor factory before creating a potentially hazardous situation. Life,
limb, or equipment could be saved with a simple phone call.

Compressors are precision high speed mechanical equipment requiring
caution in operation to minimize hazard to property and personnel. There are
many obvious safety rules that must be observed in the operation of this type
of equipment. Listed below are some additional safety precautions that must
be observed.

Industrial / Air Master Series Quincy Compressor
50161-105, March 2008 1 3501 Wismann Lane, Quincy Ill. - 62305-3116

•Transfer of toxic, dangerous, flammable or explosive substances using Quincy
Compressor products is at the user’s risk.

•Turn off and lockout/tagout (per OSHA regulation 1910.147) the main power
disconnect switch before attempting to work or perform any maintenance.

•Do not attempt to service any part of the unit while it is operating.

•Per OSHA regulation 1910.147, relieve the system of all pressure before
attempting to service any part of the unit.

•Allow ample time for the compressor to cool before performing service
procedures. Some surface temperatures exceed 350°F when the compressor is
operating.

•Do not operate the unit with any of its safety guards, shields, or screens
removed.

•Do not remove or paint over any DANGER!, WARNING!, CAUTION!, or
instructional materials attached to the compressor. Lack of information re­garding hazardous conditions can cause property damage or personal injury.

•Periodically check all pressure relief valves for proper operation.

•Do not change the pressure setting of the pressure relief valve, restrict the
function of the pressure relief valve, or replace the pressure relief valve with
a plug.

•Do not install a shutoff valve in the compressor discharge line without first
installing a pressure relief valve of proper size and design between the shutoff
valve and the compressor.

•Do not use plastic pipe, rubber hose, or lead-tin soldered joints in any part of
the compressed air system.

•Alterations must not be made to this compressor without Quincy Compressor’s
approval.

•Be sure that all tools, shipping and installation debris have been removed
from the compressor and installation site prior to starting the compressor.

•Do not operate the compressor in excess of the ASME pressure vessel rating
for the receiver or the service rating of the compressor, whichever is lower.

•Make a general overall inspection of the unit daily and correct any unsafe
situations. All fasteners must be kept tight.

•Reckless behaviour of any kind involving compressed air is dangerous and
can cause very serious injury to the participants.

•Provisions should be made to have the instruction manual readily available
to the operator and maintenance personnel. If for any reason any part of the
manual becomes illegible or the manual is lost, have it replaced immediately.
The instruction manual should be read periodically to refresh one’s memory. It
may prevent a serious or fatal accident.

•Never use a flammable or toxic solvent for cleaning the air filter or any parts.

Air used for breathing or food processing must meet OSHA 29 CFR

DANGER !

Industrial / Air Master Series Quincy Compressor
50161-105, March 2008 2 3501 Wismann Lane, Quincy Ill. - 62305-3116

1910.134 or FDA 21 CFR 178.3570 regulations. Failure to do so may
cause severe injury or death.

The owner, lessor or operator of any compressor unit manufactured by
Quincy Compressor is hereby warned that failure to observe the safety
precautions and procedures outlined in this manual may result in serious
personal injury, damage to property, and may void your warranty. Quincy
Compressor must authorize all warranty service. Before contacting your
distributor or the factory, check the maintenance requirements and the

troubleshooting guide for your compressor. Most warranty issues can be
resolved by following proper maintenance procedures.

Quincy Compressor neither states as fact, nor in any way implies that the
above list of safety precautions is an all inclusive list, the observance of which
will prevent all damage to property or injury to personnel.

Every effort has been taken to ensure that complete and correct instructions
have been included in this manual. However, possible product updates and
changes may have occurred since this printing. Quincy Compressor reserves
the right to change specifications without incurring any obligation for equip­ment previously or subsequently sold.

Summary of Changes to This Manual

(since previous printing dated October 2004):

Pro & Max series warranty information was added.

Industrial / Air Master Series Quincy Compressor
50161-105, March 2008 3 3501 Wismann Lane, Quincy Ill. - 62305-3116

SECTION 2SECTION 2

SECTION 2

SECTION 2SECTION 2

Description & Application

Principles of Compression Cycles

SYSTEM DYNAMICSSYSTEM DYNAMICS

SYSTEM DYNAMICS

SYSTEM DYNAMICSSYSTEM DYNAMICS

Quincy Compressor QT Series and PLT Series compressors are heavy duty, air
cooled, belt driven compressors. QT Series two stage compressors are splash
lubricated and capable of delivering 175 PSIG of compressed air. The PLT
Series compressors are pressure lubricated and capable of delivering 175 PSIG
of compressed air.

Two Stage Compressors

During the downstroke of the piston of a two stage compressor, air is drawn
through an intake valve in the head of the compressor into the low pressure
cylinder and compressed during the upstroke of the piston.

The compressed air is then released through a discharge valve in the head
of the compressor to an intercooler (usually finned tubing) where the heat
resulting from compression is allowed to dissipate. The cooler compressed air
is then drawn into a second compression cylinder, the high pressure cylinder,
for compression to final pressure.

From there the compressed air is released through a discharge valve to an
air receiver tank or directly to a network of compressed air supply lines. In one
revolution of the crankshaft a compression cycle is completed.

Principles of Lubrication Systems

Splash Lubricated Compressors (QT Series)

With each stroke of the compressor, a dipper attached to the bottom of the
connecting rod , dips into an oil bath at the bottom of the crankcase. This dipper
splashes oil throughout the interior of the crankcase, lubricating all moving
parts.

It is important with this system that the correct oil level be maintained. If
the oil level is too high, excessive oil carryover could result. If the oil level is too
low, or the compressor is not operated within the correct RPM range, the
moving parts will not be adequately lubricated.

Pressure Lubricated Compressors (PLT Series)

Moving parts within the crankcase are supplied with lubrication by a positive
displacement, gerotor type oil pump. Oil is drawn up from the bottom of the
crankcase to the oil pump through an oil sump strainer screen. Oil travels
under pressure through drilled journals in the crankshaft to lubricate crank­shaft bearings and connecting journals.

Optional Low Oil Level Switch

QT-5, PLT-5, QT-7.5, PLT-7.5 & QT-10 compressors are available with an
optional low oil level switch. A separate instruction manual is available which
explains the operation, retrofit installation, and removal for inspection of the
low oil level switch. Request instruction manual # 112210-101.

Industrial / Air Master Series Quincy Compressor
50161-105, March 2008 4 3501 Wismann Lane, Quincy Ill. - 62305-3116

Principles of Cooling Systems

Fan blades of the compressor sheave force ambient air across fins of the
cylinder head(s), and intercooler fins of two stage compressors, to cool the
compressor. These compressors are designed to operate in a counterclockwise
rotation. QT & PLT series compressors should be operated in temperatures
under 104°F.

Principles of Dryers & Filters

Moisture occurs naturally in air lines as a result of compression. Moisture
vapor in ambient air is concentrated when pressurized and condenses when
cooled in downstream air piping. Compressed air dryers reduce the moisture
vapor concentration and prevent water formation in compressed air lines.
Dryers are a recommended companion to filters, aftercoolers, and automatic
drains for improving the productivity of compressed air systems.

Water and moisture vapor removal increases the efficiency of air operated
equipment, reduces contamination and rusting, increases the service life of
pneumatic equipment and tools, prevents air line freeze-ups, and reduces
product rejects.

Industrial / Air Master Series Quincy Compressor
50161-105, March 2008 5 3501 Wismann Lane, Quincy Ill. - 62305-3116

Specifications

QT-5 / PLT-5 QT-7.5 / PLT-7.5 QT-10

Cylinder Bore Dia. H.P. 2.250 / 2.251 2.500 / 2.501 2.753 / 2.752

L.P. 4.00 / 4.001 4.502 / 4.503 5.003 / 5.002

Piston Skirt Dia. H.P. 2.247 / 2.246 2.497 / 2.496 2.749 / 2.748

L.P. 3.995 / 3.994 4.499 / 4.498 4.997 / 4.995

Piston / Cylinder H.P. 0.003 / 0.005 0.003 / 0.005 .003 / .005
Clearance at Skirt L.P. 0.005 / 0.007 0.003 / 0.005 .005 / .008

Crankshaft Dia. journals 1.2500 / 1.2495 1.2500 / 1.2495 1.7500 / 1.7495
main bearing (pulley end) 1.1819 / 1.1812 1.3788 / 1.3781 1.5756 / 1.5749
main bearing (opposite pulley end) 1.1819 / 1.1812 1.1819 / 1.1812 1.3788 / 1.3781

Housing Bore (pulley end) 2.4409 / 2.4419 2.8346 / 2.8351 3.1506 / 3.1496
Main Bearing (opposite pulley end) 2.4409 / 2.4419 2.4409 / 2.4419 2.8349 / 2.8344

Crankshaft End Play N/A N/A N/A

RPM Range electric 400-1000 RPM 500-1060 RPM 400-1000 RPM

gas 1060 RPM 1060 RPM

QT-15 / PLT-15 QT-54

Cylinder Bore Dia. H.P. 2.500 / 2.501 2.000 / 2.001

L.P. 4.502 / 4.503 2.750 / 2.751

Piston Skirt Dia. H.P. 2.4985 / 2.4980 1.9955 / 1.9945

L.P. 4.499 / 4.498 2.7455 / 2.7445

Piston / Cylinder H.P. 0.0015 / 0.0030 .0045 / .0065
Clearance at Skirt L.P. .003 / 0.005 .0045 / .0065

Crankshaft Dia. journals 1.7500 / 1.7495 1.1250 / 1.1245
main bearing (pulley end) 1.5753 / 1.5749 1.1816 / 1.1812
main bearing (opposite pulley end) 1.3785 / 1.3781 1.1816 / 1.1812

Housing Bore (pulley end) 3.5433 / 3.5442 2.442 / 2.441
Main Bearing (opposite pulley end) 2.8341 / 2.8346 2.442 / 2.441

Crankshaft End Play N/A N/A

RPM Range 400-1150 RPM 550-1420 RPM

Industrial / Air Master Series Quincy Compressor
50161-105, March 2008 6 3501 Wismann Lane, Quincy Ill. - 62305-3116

SECTION 3SECTION 3

SECTION 3

SECTION 3SECTION 3

Receiving Delivery

WARNING !

INSTINST

INST

INSTINST

Immediately upon receipt of compressor equipment and prior to completely
uncrating, the following steps should be taken:

Step 1) Inspect compressor equipment for damage that may have occurred

during shipment. If any damage is found, demand an inspection
from the carrier. Ask the carrier how to file a claim for shipping
damages. (Refer to SECTION 3, Freight Damage for complete
details.) Shipping damage is not covered by Quincy Com-

pressor warranty.

Step 2) Insure that adequate lifting equipment is available for moving the

compressor equipment.

Improper lifting can result in component or system damage, or
personal injury. Follow good shop practices and safety procedures
when moving the unit.

Step 3) Read the compressor nameplate to verify the model and size

ordered.

ALLAALLA

ALLA

ALLAALLA

TIONTION

TION

TIONTION

Step 4) Read the motor nameplate to be sure the motor is compatible with

your electrical conditions (volts, phase, hertz).

Step 5) Read the pressure relief valve nameplate to be sure it does not

exceed the working pressure shown on the compressor or any other
component in the system.

Step 6) Read and understand the safety precautions contained

within this manual. The successful and efficient operation of

compressor equipment depends largely upon the amount of care
taken to install and maintain the equipment. Quincy Compressor
strongly recommends that any or all person(s) in charge of install­ing, maintaining, or servicing one of our compressors read and
understand the entire contents of this manual in order to perform
such duties safely and efficiently.

Freight Damage

It is extremely important that you examine every carton and crate as soon as
you receive it. If there is any obvious damage to the shipping container, have
the delivering carrier sign the freight bill, noting the apparent damage, and
request a damage report.

If concealed damage is discovered at a later date, the carrier must
be notified within 15 days of initial receipt of freight. Concealed
shipping damage is not covered by Quincy Compressor Warranty.

Contact the carrier as soon as possible, giving them an opportunity to inspect
the shipment at the premises where the delivery was made. Do not move the
damaged freight from the premises where the original delivery was made.

Industrial / Air Master Series Quincy Compressor
50161-105, March 2008 7 3501 Wismann Lane, Quincy Ill. - 62305-3116

Location

Retain all containers and packing for inspection by the carrier.

A claim form can be requested from the carrier: Standard Form for Presen­tation of Loss and Damage Claims (form # 3208). Your claim will need to be
substantiated with the following documents:

a.) form #3208

b.) original bill of lading

c.) original paid freight bill

d.) original invoice or certified copy

e.) other particulars obtainable in proof of loss or damage (photos,

damage inspection, etc.)

The proper description and classification of our product in the National
Motor Freight Classification 100-H, contained in item 118100, reads as follows:
Compressors, air, or air ends: with or without air tanks, hose or nozzles,
mounted or not mounted.”

We suggest that these instructions be circulated to your shipping and
receiving personnel.

QT & PLT Series air compressors should be installed in an area that is clean,
dry, well lighted, adequately ventilated, and not more than 24 inches to a wall
or other compressor. (Note: A gas engine will produce carbon monoxide; always
provide adequate ventilation!) Inspection and maintenance checks are re­quired daily. Therefore, sufficient space needs to be provided around the
compressor for safe and proper inspection, cleaning, and maintenance.

Ample circulation of air must be provided across the compressor cylinders,
heads and cooler (if so equipped). If at all possible, the pulley drive system (i.e.
motor pulley, compressor sheave, belts and guard) should be located next to a
wall to minimize any danger created by the drive system while the compressor
is operating. Do not allow hot air from additional equipment to blow towards
the compressor.

QT & PLT series compressors should be operated in temperatures under
104°F. In cold climates, the compressor should be installed in a heated building.

Do not operate this compressor in ambient temperatures lower

CAUTION !

WARNING !

Industrial / Air Master Series Quincy Compressor
50161-105, March 2008 8 3501 Wismann Lane, Quincy Ill. - 62305-3116

than -15° F. A crankcase heater is recommended for a compressor
that is to operate in temperatures under 32° F.

Under no circumstances should a compressor be used in an area
that may be exposed to toxic, volatile, or corrosive atmosphere. Do
not store toxic, volatile, or corrosive agents near the compressor.

Noise

Noise is a potential health hazard that must be considered. There are federal
and local laws governing acceptable noise levels. Check with local officials for
specifications.

WARNING !

Electrical Supply Requirements

Excessive noise can be effectively reduced through various methods. Total
enclosures, intake silencers, baffle walls, relocating or isolating the compressor
can reduce noise levels. Care must be taken when constructing total enclosures
or baffle walls. If not properly constructed or positioned, they could contribute
to unacceptable noise levels or overheating. Consult your local Quincy distribu­tor if assistance is required.

Unusual noise or vibration indicates a problem. Do not operate the
compressor until the source has been identified and corrected.

The electrical installation of this unit should be performed by a qualified
electrician with knowledge of the National Electrical Code (NEC), OSHA code
and/or any local or state codes having precedence.

Before installation, the electrical supply should be checked for adequate
wire size and transformer capacity. Verify that the electrical supply voltage
matches the requirements of the motor. A suitable circuit breaker or fused
disconnect switch should be provided. When a 3 phase motor is used to drive
a compressor, any unreasonable voltage imbalance between the legs must be
eliminated and any high or low voltage corrected to prevent excessive current
draw. Note: This unit must be grounded.

DANGER !

WARNING !

WARNING !

The installation, electric motor, wiring, and all electrical controls must be in
accordance with NFPA 70-1996 National Electric Code, National Electric
Safety Code, state and local codes. Failure to abide by the national, state and
local codes may result in physical harm and/or property damage.

High voltage may cause personal injury or death. Disconnect and
lockout/tagout per OSHA regulation 1910.147 all electrical power
supplies before opening the electrical enclosure or servicing.

Never assume a compressor is safe to work on just because it is not
operating. It could restart at any time. Follow all safety precautions
outlined in SECTION 5, Stopping For Maintenance.

Electrical enclosures and components must be in compliance with
NEMA environmental ratings for the areas in which they are being
installed.

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Install incoming power line

connections at screw

terminals L1, L2 & L3.

Wiring Schematic WP1744A (Rev. D)

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Fig. 3-1

3 Phase Start / Stop Control

Install incoming power line

connections at screw

terminals L1 & L2.

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Fig. 3-2

Single Phase Start / Stop Control

Wiring Schematic WP1744B (Rev. D)

Install incoming power line

connection at this screw terminal.

Splice incoming power line

connection to this white wire

(wrapped in red tape).

Start / Stop Control- Pressure Switch / Motor

(for unit models 150934A712, 150935A712, 150959A712, 151047-712, 151048-712 & 151050-712)

Wiring Schematic WP1753 (Rev. H)

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Fig. 3-3

Install incoming power

line connections at screw

terminals L1 & L2.

Single Phase MDR Pressure Switch / Overload Relay

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Fig. 3-4

Connection Diagram

(Rated 22-30 Amps)

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Fig. 3-4

Start / Stop Control

Piping Schematic WP1781B

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Fig. 3-5

Continuous Run - Load / Unload Control

Piping Schematic WP1781C

Dual Control with Pilot Valve Unloading

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Fig. 3-6

Piping Schematic WP1781A

Mounting

Proper mounting of QT & PLT series compressor units is crucial to the safe
operation and longevity of the equipment. The installation requires a flat and

FLANGE NUT

RECEIVER FOOT

ISOLATOR BACKING
PLATE

BOLT

ISOLATOR

UNANCHORED ANCHORED

Fig. 3-7 Isolator Installation for

Unanchored or Anchored Receiver

Mounting Mobile Units

Gas engine driven compressors mounted to truck beds should be fastened in
such a way so as not to create any stress to the air receiver tank. Truck beds,
characteristically, have a tendency to flex and could cause damage to the
receiver tank if the tank is fastened directly to the truck bed. It is the user’s
responsibility to provide an adequate means of fastening the unit in these
applications.

FLANGE NUT

Leave loose & lock
with a back-up nut

RECEIVER FOOT

ISOLATOR BACKING
PLATE OR SHIMS IF
NECESSARY

ISOLATOR

ANCHORED
FLOOR
STUD

110365

level concrete floor or pad (for mobile units see Mounting
Mobile Units). Satisfactory results can usually be ob-
tained by mounting the compressor unit on vibration
isolating pads available from your local Quincy distribu­tor. All vertical tank units must be anchored! Refer to

Fig. 3-7, Isolator Installation for Unanchored or
Anchored Receiver.

State or local codes may mandate that the compressor
be bolted to the floor. In this case the unit must be leveled
and bolted making absolutely certain the feet are not
stressed in any manner. Leave the flange nut loose &
lock it with a back-up nut! Uneven feet drawn tightly
to the concrete pad will cause severe vibrations resulting
in cracked welds or fatigue failure. The customer is
responsible for providing a suitable foundation & isolator
mounting where necessary.

CAUTION !

System components

Do not operate this compressor more than 15° off level or move it
while it is operating.

Efficiency and safety are the primary concerns when selecting components for
compressed air systems. Products of inferior quality can not only hinder
performance of the unit, but could cause system failures that result in bodily
harm or even death. Select only top quality components for your system. Call
your local Quincy distributor for quality parts and professional advice.

Drive Pulleys / Sheaves

Various pulley and sheave combinations are available to obtain the desired air
pressure and delivery rate of your compressor. Consideration must be given to
these combinations to ensure that the motor is not overloaded by operating
above or below the designed speed range.

Whatever combination is employed, the drive pulleys & compressor sheaves
must be properly aligned and drive belt tension set to specifications (refer to
SECTION 5, Pulley / Sheave Alignment & Belt Tension). Improper pulley/
sheave alignment and belt tension can cause motor overloading, excessive
vibration, and premature belt and/or bearing failure.

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WARNING !

WARNING !

Excessive compressor RPM’s (speed) could cause a pulley or sheave
to shatter. In an instant, the pulley or sheave could separate into
fragments capable of penetrating the belt guard and causing bodily
harm or death. Do not operate the compressor above the recom­mended RPM (refer to SECTION 2, Specifications).

Guards

All mechanical action or motion is hazardous in varying degrees and needs to
be guarded. Guards should be designed to achieve the required degree of
protection and still allow full air flow from the compressor sheave across the
unit. Guards shall be in compliance with OSHA safety and health standards 29
CFR 1910.219 in OSHA manual 2206 and any state or local codes.

Guards must be fastened in place before starting the compressor
and never removed before cutting off and locking out the main
power supply.

Check Valves

Check valves are designed to prevent back-flow of air pressure in the com­pressed air system (air flows freely in one direction only). The check valve must
be properly sized for air flow and temperature. Do not rely upon a check

valve to isolate a compressor from a pressurized tank or compressed
air delivery system during maintenance procedures!

DANGER !

Manual Shutoff Valves

Manual shutoff valves block the flow of air pressure in either direction. This
type of valve can be used to isolate a compressor from a pressurized system,
provided the system is equipped with a pressure relief valve capable of being
manually released. The pressure relief valve should be installed between the
manual shutoff valve and the compressor (refer to Fig. 3-8, Typical Drop Leg

& Component Location).

Pressure Relief Valves

Pressure relief valves aid in preventing system failures by relieving system
pressure when compressed air reaches a determined level. They are available
in various pressure settings to accommodate a range of applications. Pressure
relief valves are preset by the manufacturer and under no circumstances
should the setting be changed by anyone other than the manufacturer.

Pressure relief valves are designed to protect compressed air
systems in accordance with ASME B19 safety standards. Failure to
provide properly sized pressure relief valves may cause property
damage, severe personal injury or even death.

Pressure Switch

The pressure switch detects the demand for compressed air and allows the
motor to start. When the demand is satisfied, the unit stops. Pressure switches
provided by Quincy Compressor are pre-set at the factory and usually do not
require adjustment.

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Induction System

Air Intake

A clean, cool and dry air supply is essential to the satisfactory operation of your
Quincy QT or PLT Series air compressor. The standard air filter that the
compressor is equipped with when leaving the factory is of sufficient size and
design to meet normal conditions, when properly serviced, in accordance with
the maintenance section of this manual.

dust, dirt and other contaminants are prevalent, consult your local Quincy
distributor for advice and optional filters. A condensate trap must be installed
as close as possible to the inlet filter if, as a result of installation or environmen­tal conditions, there is any risk of moisture forming in the inlet piping. It is the
user’s responsibility to provide adequate filtration for those conditions. Oil
bath filters are not to be used. Warranty will be void if a failure is determined
to be caused by inadequate filtration.

Remote Inlet Filters

Depending on the size of the compressor and the size and construction of the
room in which the unit operates, the air inlet may have to be located outside of
the room. If it is necessary to remotely install the air filter, make the inlet piping
as short and direct as possible. Remotely installed air filters can lead to
vibrations in the inlet piping. These vibrations can be minimized by adding a
pulsation dampener in the inlet piping between the remote inlet filter(s) and
the compressor.

If, however, the compressor is to be installed in a location where considerable

CAUTION !

Compressed Air Discharge System

If the inlet is routed to outside atmosphere, the inlet piping should be
equipped with a hooded air filter and designed to prevent condensate, water or
snow from being injested into the compressor.

All inlet piping should be at least the same size (or larger) in diameter as the
inlet connection to the compressor. For every 10 feet of inlet piping or every 90°
bend, increase the inlet piping diameter by one pipe size. The inlet piping must
be thoroughly clean inside. Remove all weld slag, rust or dirt. Galvanized pipe
with threaded or flanged fittings is preferred.

Never locate the compressor air inlet system where toxic, volatile
or corrosive vapors, air temperatures exceeding 100°F, water, or
extremely dirty air could be ingested. These types of atmospheres
could adversely affect the performance of the compressor system.

The discharge piping should be of the same diameter as the compressor
discharge connection, or sized so that the pressure drop at any point in the
system does not exceed 10% of the air receiver pressure. Install auxiliary air
receivers near heavy loads or at the far end of a long system. This will insure
sufficient pressure if the use is intermittent, or sudden large demands are
placed on the system.

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Discharge piping should slope to a drop leg (refer to Fig. 3-8, Typical Drop
Leg & Component Location) or moisture trap to provide a collection point

where moisture can be easily removed. All service line outlets should be
installed above the moisture traps to prevent moisture from entering the tool
or device using the air. Manual shutoff valves, protected by pressure relief
valves, should be installed at all service line outlets to eliminate leakage while
the tools are not in use.

Fig. 3-8 Typical Drop Leg & Component Location

Pix 1007-004

As with any piping, all parts of the discharge piping should fit so as not to

create any stress between the piping and components.

Pnuematic Circuit Breakers or Velocity Fuses

The Occupational Safety and Health Act (OSHA), Section 1926.303, Paragraph
7, published in the Code of Federal Regulations 29 CFR 1920.1, revised July 1,
1982 states that all hoses exceeding 1/2" inside diameter shall have a safety
device at the source of supply or branch line to reduce pressure in case of a hose
failure”

These pnuematic safety devices are designed to prevent hoses from whip­ping and/or the loss of hazardous or toxic gasses, all of which could result in a
serious or fatal accident.

Never join pipes or fittings with lead-tin soldering. Welded or

WARNING !

threaded steel pipes and cast iron fittings, designed for the pres­sures and temperatures, are recommended.

Pressure Vessels

Air receiver tanks and other pressure containing vessels such as (but not
limited to) pulsation bottles, heat exchangers, moisture separators and traps,

must be in accordance with ASME Boiler and Pressure Vessel Code Section VIII
and ANSI B19.3 safety standards. They must be equipped with a properly sized

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WARNING !

pressure relief valve, pressure gauge, tank drain, & manual shutoff valve (refer
to Fig. 3-8, Typical Drop Leg & Component Location).

Follow ASME code for air reciever tanks and other pressure con­taining vessels. Pressure vessels must not be modified, welded,
repaired, reworked or subjected to operating conditions outside
the nameplate ratings. Such actions will negate code status, affect
insurance status and may cause property damage, severe injury or
even death.

A drain valve should be located in the bottom of the air receiver to allow for
moisture drainage. An automatic drain valve is recommended. Extend piping
away from the unit and any personnel in the immediate area to provide safe and
convenient removal of excess moisture.

If the air receiver is going to be subject to temperatures of 32°F or below,
provisions must be made to guard against freezing of the pressure relief valves,
check valves, pressure gauge, and moisture drain.

Condensation

Rust can form inside the crankcase and on internal components as a result of
condensation. A compressor must operate long enough during each run cycle
to reach full operating temperature in order to reduce the risk of condensation.

CAUTION !

Fig. 3-9 Internal Drain Tube

Lubricant that appears milky on the dipstick may have mixed with
condensate. Failure to replace contaminated lubricant will result
in damage to the compressor and may void warranty.

Condensation can also form in the air tank of your
compressor. When this happens, a mixture of air and
moisture will be expelled through the service valve and
into whatever is connected to the valve (e.g. air hoses,

30 PSIG

Pix 1224

Manual Tank Drain Valve Operation

The manual tank drain valve on portable compressors and some stationary
compressors is located on the underside of the air tank. Portable compressors
can be tilted in the direction of the drain to allow removal of tank moisture.

Some tanks use an internal drain tube (Refer to Fig. 3-9, Internal Drain
Tube) to drain the moisture. Tank pressure is required to force moisture out
of the tank through the drain tube. Safe removal of tank moisture from the air
tank is dependent upon an internal tank pressure of no more than 30 PSIG.
Higher internal tank pressures are dangerous and could cause serious injury!

metal air lines, pneumatic tools, spray guns). An in-line
filter or dryer, available from your local Quincy dis­tributor, may be required to eliminate the moisture.

Condensation in the air tank can be kept to a mini­mum by draining the tank on a daily basis. This also
reduces the risk of rust developing and weakening the
tank.

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WARNING !

Do not open a manual tank drain valve on any air tank containing
more than 30 PSIG of air pressure!

WARNING !

Fig. 3-10 Checking Pressure Relief Valves

& Relieving System Pressure

Never attempt to relieve an air tank by removing a pipe plug or any
other system component!

Manually Draining An Air Tank:

Pix 1160

Step 1) Disconnect & lockout the compressor from the
power source (electric models) or disconnect the spark
plug wire from the spark plug (gas engine models).

Step 2) Tanks subjected to freezing temperatures may
contain ice. Store the compressor in a heated area
before attempting to drain moisture from the tanks.
Reduce the air pressure in the tank to 30 PSIG by
pulling the pressure relief valve ring (refer to Fig. 3-10,

Checking Pressure Relief Valves & Relieving
System Pressure).

Step 3) Open the drain valve and allow the moisture

and air mixture to drain from the tank.

Step 4) Once the moisture has been completely drained,
close the drain valve.

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SECTION 4SECTION 4

SECTION 4

SECTION 4SECTION 4

Pre-starting Checklist

WARNING !

WARNING !

STST

ARAR

ST

STST

Never assume a compressor is safe to work on just because it is not
operating. It could restart at any time. Follow all safety precautions
outlined in SECTION 5, Stopping For Maintenance.

Failure to perform the pre-starting checklist may result in me­chanical failure, property damage, serious injury or even death.

Steps 1 through 12 should be performed prior to connecting the

unit to a power source. If any condition of the checklist is not satisfied, make

the necessary adjustments or corrections before starting the compressor.

Step 1) Remove all installation tools from the compressor and check for

installation debris.

Step 2) Unless otherwise specified, Quincy QT & PLT Series compressors

are normally shipped with break-in lubricant in the crankcase.

Check the lubricant level in the crankcase. (Refer to SEC­TION 5, Lubrication for quantity and types of lubricant to be

used.)

T-UP & OPERAT-UP & OPERA

AR

T-UP & OPERA

ARAR

T-UP & OPERAT-UP & OPERA

TIONTION

TION

TIONTION

Step 3) Check motor pulley and compressor sheaves for alignment and

tightness on shaft. (Refer to SECTION 5, Pulley / Sheave
Alignment & Belt Tension.)

Step 4) Manually rotate the compressor sheave several rotations to be sure

there are no mechanical interferences.

Step 5) Check inlet piping installation (Refer to SECTION 3, Induction

System.)

Step 6) Check belt tension. (Refer to SECTION 5, Pulley / Sheave

Alignment & Belt Tension.)

Step 7) Check all pressure connections for tightness.

Step 8) Make sure all pressure relief valves are correctly installed. (Refer

to SECTION 3, System Components.)

Step 9) Be sure all guards are in place and securely mounted. (Refer to

SECTION 3, System Components.)

Step 10) Check fuses, circuit breakers, and thermal overloads for proper

size. Verify that the supply voltage matches the motor require­ments. (Refer to SECTION 3, Electrical Supply Requirements.)

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Step 11) Open all manual shutoff valves at and beyond the compressor

discharge.

Step 12) After all the above conditions have been satisfied, the unit can be

connected to the proper power source.

Step 13) Jog the starter switch to check the rotational direction of the

compressor. It should agree with the rotation arrow embossed on
the compressor sheave.

Step 14) Check for proper rotation of the cylinder cooling fan (fins inside

sheave). The fan should blow cooling air across the cylinder.

Initial Starting & Operating

This instruction manual, as well as any instructions supplied by manufactur­ers of supporting equipment, should be read and understood prior to starting
the compressor. If there are any questions regarding any part of the instruc­tions, please call your local Quincy distributor, or the Quincy Compressor
factory.

With the pre-starting checklist completed and satisfied, start the com-

OIL

PRESSURE

ADJUSTMENT

SCREW

pressor. Watch and listen for excessive vibration and strange noises. If either
exist, stop the compressor. Refer to SECTION 6, Troubleshooting for help
in determining the cause of such problems.

If you are starting a pressure lubricated model, check the oil pressure.
Compressors producing up to 175 PSIG of discharge air pressure should
maintain 18 to 20 PSIG of oil pressure.

Fig. 4-1

Pix 1220

Oil Pressure Adjustment

Normally the oil pressure does not need to be adjusted. But if it does,
loosen the locknut on the adjustment screw located on the right side of the
oil pump housing (see Fig. 4-1, Oil Pressure Adjustment). Increase the
oil pressure by turning the adjustment screw clockwise; decrease the oil
pressure by turning the adjusting screw counterclockwise. After adjust­ment tighten the locknut.

Check the air receiver pressure gauge or system pressure gauge for proper

readings. If inadequate or excessive air pressure conditions exist, refer to
Section 6 Troubleshooting.

Observe compressor operation closely for the first hour of operation and

then frequently for the next seven hours. After the first eight hours, monitor the
compressor at least once every eight hours. If any abnormal conditions are
witnessed, stop the compressor and correct the problem. After two days of
operation check belt tension, lubricant level, and inspect the system for leaks.

A new or rebuilt reciprocating compressor should be run for a total of 100

hours at full discharge operating pressure to break-in the new piston rings.
Until the rings are seated, the compressor will discharge higher than normal
amounts of lubricant. In light of this fact, the lubricant level should be checked
more frequently during the 100 hour break-in period.

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Daily Starting Checklist

Do not proceed until the Pre-starting Checklist and Initial Starting &

Operating sub-sections have been read and are thoroughly understood.

Step 1) Check lubricant level in crankcase.

Step 2) Drain liquid from the air receiver and moisture trap (if so equipped).

Step 3) Jog the starter button and check compressor rotation.

Step 4) Start compressor per factory instructions. (Refer to SECTION 4,

Step 5) Check system pressure.

Step 6) Check cooling fan.

Note: Continuous Run Units - Prior to starting a continuous run
unit, flip the toggle lever on the pilot valve stem to the “Manual
Unload” position (see below). Now the compressor can be started
unloaded. Once the compressor is running at full speed, flip the
toggle lever back to the “RUN” position.

Pre-Starting Checklist and Initial Starting & Operating.)

Step 7) Check all pressure relief valves for proper operation.

Step 8) Check control system for proper operation.

"MANUAL

UNLOAD"

"RUN"

position

position

Fig. 4-2

Continuous Run Pilot Valve

Step 9) Check the lubricant level in the crankcase several minutes after

the compressor has run. (Discoloration or a higher lubricant level
reading may indicate the presence of condensed liquids.) If lubri­cant is contaminated, drain and replace.

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SECTION 5SECTION 5

SECTION 5

SECTION 5SECTION 5

Stopping for Maintenance

WARNING !

MAINTENANCE & LUBRICAMAINTENANCE & LUBRICA

MAINTENANCE & LUBRICA

MAINTENANCE & LUBRICAMAINTENANCE & LUBRICA

The following procedures should be followed when stopping the compressor for
maintenance or service:

Step 1) Per OSHA regulation 1910.147: The Control of Hazardous Energy

Source (Lockout/Tagout), disconnect and lockout the main power
source. Display a sign in clear view at the main power switch
stating that the compressor is being serviced.

Never assume a compressor is safe to work on just because it is not
operating. It could restart at any time.

Step 2) Isolate the compressor from the compressed air supply by closing

a manual shutoff valve upstream and downstream from the com­pressor. Display a sign in clear view at the shutoff valve stating that
the compressor is being serviced.

Step 3) Lock open a pressure relief valve within the pressurized system to

allow the system to be completely de-pressurized. NEVER remove
a plug to relieve the pressure!

TIONTION

TION

TIONTION

Step 4) Open all manual drain valves within the area to be serviced.

Step 5) Wait for the unit to cool before starting to service. (Temperatures

of 125°F can burn skin. Some surface temperatures exceed 350°F
when the compressor is operating.)

Maintenance Schedule

To assure maximum performance and service life of your compressor, a routine
maintenance schedule should be developed. A sample schedule has been
included here to help you to develop a maintenance schedule designed for your
particular application. Time frames may need to be shortened in harsher
environments.

At the back of this instruction manual you will find a Maintenance

Schedule Checklist. Make copies of this checklist and retain the master to
make more copies as needed. On a copy of the checklist, enter dates and initials
in the appropriate spaces. Keep the checklist and this Instruction Manual
readily available near the compressor.

Maintenance Schedule Checklist Sample

Every 8 Hours (or Daily)

•QT-5, PLT-5, QT-7.5, PLT-7.5, QT-10 & PLT-15 lubricant levels should
be kept at the top of the sight glass (add lubricant until it reaches the
bottom edge of the lubricant fill opening).

•Maintain lubricant levels of QT-15, QT-25 & QT-54 models between
high and low level marks on dipstick. Check the lubricant level several
minutes after the compressor has run. (Discoloration or a higher

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lubricant level reading may indicate the presence of condensed liq-

uids.) If lubricant is contaminated, drain and replace.

•Drain receiver tank, drop legs and traps in air distribution system.
Receiver tanks subjected to freezing temperatures may contain ice.
Store the compressor unit in a heated area before attempting to drain
moisture from the tank.

•Give compressor an overall visual inspection and be sure safety guards
are in place.

•Check for any unusual noise or vibration.

•Check for lubricant leaks.

•Check all pressurized components for rust, cracks or leaks. Immedi­ately discontinue use of the equipment and relieve all system pressure
if any of these problems are discovered. Do not use the equipment until
it has been inspected and repaired by a qualified mechanic.

Every 40 Hours (or Weekly)

•Manually operate the pressure relief valves to be certain they are
working.

•Clean the cooling surfaces of the intercooler, aftercooler and compres­sor.

•Check the compressor for air leaks.

•Check the compressed air distribution system for leaks.

•Inspect lubricant for contamination & change if necessary.

•Clean or replace the air intake filter. Check more often under humid
or dirty conditions.

Every 160 Hours (or Monthly)

•Check belt tension

Every 500 Hours (or Every 3 Months)

•Change lubricant (more frequently in harsher environments).

•Torque pulley clamp screws or jamnut.

Every 1000 Hours (or Every 6 Months)

•When Quin-Cip lubricant is used, lubricant change intervals may be
extended to every 1000 hours or every 6 months, whichever occurs first
(change more frequently in harsher conditions).

•Inspect compressor valves for leakage and/or carbon build-up. If
excessive sludge build-up exists inside the crankcase, clean the inside
of the crankcase as well as the screen. Never use a flammable or

toxic solvent for cleaning. Always use a safety solvent and
follow the directions provided.

Every 2000 Hours (or Every 12 Months)

•Inspect the pressure switch diaphragm and contacts. Inspect the
contact points in the motor / starter.

Servicing Reed Valves

QT & PLT Series compressor valve plates and reed valves should be inspected
and cleaned on a regular basis. The reed valves are made of stainless steel and
can be cleaned with a stiff bristle brush(not a wire brush!). A clean safety
solvent may also be used to loosen carbon deposits on the valve plates and reed
valves. Handle all parts with care; do not bend, mar or scratch any sealing
surfaces.

DANGER !

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Never use gasoline, thinners, or other flammable solutions to clean
valves or related parts.

Lubrication

QT and PLT Series basic compressors and units are normally shipped
from the factory with break-in lubricant in the crankcase. Before

starting your compressor, check the lubricant level in the crankcase. The
lubricant level of QT-5, PLT-5, QT-7.5, PLT-7.5, QT-10 & PLT-15 compressors
must reach the bottom edge of the lubricant fill opening. The lubricant level of
QT-15, QT-25 & QT-54 compressors must register between the high and low
marks on the dipstick. Replace the break-in lubricant after 100 hours of

operation with Quin-Cip lubricant!

Quin-Cip lubricant has proven under extensive testing to minimize friction
and wear, limit lubricant carryover, and reduce carbon and varnish deposits. It
will support the performance characteristics and life designed into all Quincy
compressors and is highly recommended. Refer to the charts below to deter­mine the correct amount of lubricant and viscosity to use for your model and
application.

Approximate Crankcase Lubricant Capacities

Basic Compressor Model Lubricant Capacity

QT-5 & PLT-5 1

QT-7.5 & PLT-7.5 15/8 qts. (1.5 lit.)

QT-10 17/8 qts. (1.8 lit.)

QT-15 & PLT-15 4 3/4 qts. (4.5 lit.)

QT-54 11/4 qts. (1.15 lit.)

5

/8 qts. (1.5 lit.)

CAUTION !

CAUTION !

Lubricant Specifications

(Use Quin-Cip lubricant or consult factory.)

Ambient Temperature SAE Viscosity ISO Viscosity

Below 0°F SAE 5W ISO 22

0-32° F SAE 10W ISO 32

32-80°F SAE 20W ISO 68

60-104°F SAE 30 ISO 100

The lubricant selected must have a pour point at least 15° F lower
than the minimum expected ambient temperature .

Do not operate this compressor in ambient temperatures lower
than -15° F. A crankcase heater is recommended for compressors
operating in temperatures under 32° F.

Industrial / Air Master Series Quincy Compressor
50161-105, March 2008 28 3501 Wismann Lane, Quincy Ill. - 62305-3116

Pulley / Sheave Alignment & Belt Tension

Improper pulley/sheave alignment and belt tension are causes for motor
overloading, excessive vibration, and premature belt and/or bearing failure. To
prevent this from happening, check the pulley/sheave alignment and belt
tension on a regular basis (refer to SECTION 5, Maintenance Schedule).

Periodically inspect the motor pulley(s) and compressor sheave(s) for oil,
grease, nicks or burrs. Clean or replace if necessary. Make sure they are
securely fastened. Align the compressor sheave with the motor or engine pulley.
Drive belt grooves of the pulley(s) and sheave(s) should be in line with each
other. The compressor crankshaft must be parallel to the motor or engine drive
shaft.

Belt tension should be measured and adjusted to provide smooth operation.
Step-by-step procedures are provided here to correctly measure and set the
drive belt tension:

Step 1) Measure the span length of the drive. (Refer to Fig. 5-1, Setting

Belt Tension.)

Fig. 5-1

Pix 1152

Setting Belt Tension

Belt Motor Pulley Recommended

Cross Dia. Range Deflection Force (lbs.)

Section (inches) Minimum Maximum

A QT-54 only 2 3
B 4.6 4.0 5.9
B 5.0 - 5.4 4.5 6.7
B 5.6 - 6.4 5.0 7.4
B 6.8 - 9.4 5.8 8.6

Industrial / Air Master Series Quincy Compressor
50161-105, March 2008 29 3501 Wismann Lane, Quincy Ill. - 62305-3116

POCKET CLIP

SLIDING

RUBBER O-RINGS

DEFLECTION
FORCE SCALE
(READ DOWN)

DEFLECTION

DISTANCE

SCALE

(READ UP)

Step 2) Determine the amount of deflection (
in inches) required to measure deflection force (in
pounds) by multiplying the span length x 1/
(i.e. 32” span length x 1/

[.016] = 1/2”[.50] of deflec-

64

(.016)

64

tion required to measure deflection force).

Step 3) Lay a straightedge across the top outer
surface of a drive belt from pulley to sheave.

Step 4) At the center of the span, perpendicu­lar to the belt, apply pressure to the outer surface
of the belt with a belt tension gauge (refer to Fig.
5-2, Belt Tension Gauge). Force the belt to the
predetermined deflection (refer to Step 2 above).
Record the reading on the belt tension gauge and
compare to the chart following Fig 5-1. The de­flection force reading should be within the mini­mum and maximum values shown. Adjust belt(s)
accordingly. New belts should be initially tensioned
to the maximum value plus 33% (multiply by 1.33).

Fig. 5-2 Belt Tension Gauge

PRESSURE

ADJUSTMENT

SCREW

Fig. 5-3 Pressure Switch

with a fixed 20 PSIG (approx.) differential. Optional switches include both
pressure and differential adjustment capabilities.

Pix 1153

Step 5) Recheck the tension of the new belts
several times in the first 50 hours of operation and

adjust if necessary. Thereafter, check belt tension

ELECTRICAL

CONTACTS

on a regular basis (refer to SECTION 5, Mainte-
nance Schedule).

Pressure Switch Adjustment

Pressure switches provided by Quincy Compres­sor are pre-set at the factory and usually do not
require adjustment. However, the following pro­cedures can be performed by a qualified electri­cian to adjust the pressure switch.

Pix 1067

to increase the amount of air pressure required to open the switch
and stop the unit. Screw the spring loaded adjustment screw out
(counterclockwise) to decrease the amount of air pressure required
to open the switch and stop the unit.

Standard pressure switches supplied by Quincy Compressor are equipped

Step 1) Remove the pressure switch cover.

Step 2) While the compressor is running, screw

the spring loaded adjustment screw in (clockwise)

Electric power always exists inside the pressure switch whenever
the compressor package is connected to a power supply. Be careful

WARNING !

not to touch any electrical leads when adjusting the pressure
switch.

Industrial / Air Master Series Quincy Compressor
50161-105, March 2008 30 3501 Wismann Lane, Quincy Ill. - 62305-3116

WARNING !

WARNING !

Torquing Cylinder to Head Capscrews

Never exceed the designed pressure for the system or overload the
motor beyond its Maximum Amp Draw.

* Full Load Amps x Service Factor = Maximum Amp Draw

Never assume a compressor is safe to work on just because it is not
operating. It may be in the automatic stand-by mode and may
restart any time. Follow all safety precautions outlined in SEC­TION 5, Stopping For Maintenance.

Torque cylinder to head capscrews to specifications listed in the parts book
corresponding to the Record of Change for your compressor. Then, run the
compressor for at least 1 hour. Shut the unit off and follow precautions outlined
in SECTION 5, Stopping for Maintenance. Retorque the head capscrews to
same specifications after the unit has cooled.

* Full load amps (FLA) & Service Factor can usually be found on the motor nameplate.
† Reference torque spec. note in parts book corresponding to Record of Change for your compressor.

Industrial / Air Master Series Quincy Compressor
50161-105, March 2008 31 3501 Wismann Lane, Quincy Ill. - 62305-3116

PILOT VPILOT V

PILOT V

PILOT VPILOT V

All adjustments made to the pilot valve must be performed by a qualified technician. The adjustments must
be made while the unit is operating, therefore, extreme caution must be taken while working on the unit.
Observe all necessary precautions. Always use a back-up wrench and make all differential and unload pressure
adjustments in very small increments (1/8 turn).

ALAL

VE ADJUSTMENTSVE ADJUSTMENTS

AL

VE ADJUSTMENTS

ALAL

VE ADJUSTMENTSVE ADJUSTMENTS

WARNING !

The pressure switch and / or pilot valve are set at the factory for maximum efficiency. Adjustments to either
component must be performed by a qualified technician. Exceeding the factory recommended maximum pressure
will void the warranty and may cause personal injury.

Setting Unload Pressure

Step 1. Flip the toggle to the

"RUN" position as

shown, or turn the

knurled knob (if so

equipped) counter-

clockwise until it

stops.

*

Step 2. Loosen locknut

(counterclockwise). *

Stabilize with

back-up wrench!

Setting Differential Pressure

Step 5. Loosen locknut (counterclock-

wise). * Stabilize with back-up

wrench!

"MANUAL
UNLOAD"

position

(Ref.)

Step 3. Turn clockwise to increase unload pres-

sure, turn counterclockwise to decrease
unload pressure. Hold position with
wrench and proceed to Step 4.

Step 4. Tighten locknut (clockwise) with wrench.

* Stabilize with back-up wrench!

Step 6. Turn clockwise to decrease the

differential pressure and coun-

*

Step 7. Tighten locknut (clockwise)

terclockwise to increase the dif­ferential pressure. Hold posi­tion with wrench and proceed
to Step 7.

with wrench. * Stabilize with

back-up wrench!

Industrial / Air Master Series Quincy Compressor
50161-105, March 2008 32 3501 Wismann Lane, Quincy Ill. - 62305-3116

SECTION 6SECTION 6

SECTION 6

SECTION 6SECTION 6

Trouble Probable Cause

Low discharge pressure •Restricted inlet

•Defective compressor valves or valve unloading mechanism

•Leaks in the compressed air distribution system at fittings, connections,
etc.

•Unloader pilot valve defective or set wrong

•Pressure switch defective or set wrong

•Drive belt slipping

•Incorrect speed

•Worn piston rings or loose piston

•Leaking head gasket

•Drain valve open

•Defective pressure gauge

•Excessive running clearances (refer to SECTION 2, Specifications)

•Pressure relief valve leaking

•Clogged intercooler

•Loose compressor valves or leaking at valve gaskets

•Compressor incorrectly sized for the altitude it is operating at

•Piston rings not seated; allow 100 hours at full pressure

TROUBLESHOOTINGTROUBLESHOOTING

TROUBLESHOOTING

TROUBLESHOOTINGTROUBLESHOOTING

Water in the crankcase •Compressor does not run long enough to get hot and vaporize the liquids
(lubricant appears milky) squeezed out of the air during compression (compressor may be too large

for application)

•Incorrect or inferior grade of lubricant

•System pressure leaking back through discharge valve

Rusty valves •Compressor operated too infrequently
and/or cylinders •Compressor does not run long enough to get hot and vaporize the liquids

squeezed out of the air during compression (compressor may be too large
for application)

•Compressor not properly prepared for storage

•Discharge line from compressor head is pointed upward allowing con
densation to drain back at shutdown

Excessive vibration •Incorrect speed

•Compressor valves not functioning properly

•Loose pulley/sheave

•Motor or engine out of balance

•Compressor, motor or engine not secured tightly, or tightened into a
bind

•Foundation or frame inadequate

•Piping inadequately supported or tightened into a bind

•Excessive discharge pressure

•Compressor feet may need to be leveled with shims

Industrial / Air Master Series Quincy Compressor
50161-105, March 2008 33 3501 Wismann Lane, Quincy Ill. - 62305-3116

Trouble Probable Cause

Excessive drive belt wear •Pulley/sheave out of alignment

•Belt too loose or too tight

•Belt slipping

•Pulley/sheave wobbling

•Pulley/sheave groove damaged or rough

•Incorrect belts

Low oil pressure •Oil sump strainer plugged

•Excessive leakage at crankshaft seals

•Low oil level

•Oil pump incorrectly assembled to the bearing carrier (“o”ring not
properly located between oil pump body & bearing carrier)

•Oil pressure adjusting screw not set properly

•Defective oil pressure gauge

Compressor loads •Air receiver too small
and unloads excessively •Compressor valves or unloaders defective

•Excessive system leakage

•Compressor operating at incorrect speed

•Unloader pilot differential set too close

•Pressure switch defective

Defective pressure switch •Moisture &/or oil buildup on the pressure switch diaphragm

•Ruptured diaphragm

•Burned contact points

•Plugged air passage from the receiver to the pressure switch

•Loose electrical connection

Excessive air pressure •Air pressure gauge inaccurate
in air receiver •Leaks in unloader piping system

•Defective compressor head unloader

•Pilot valve or pressure switch set incorrectly or defective

•Pressure switch wired incorrectly

•Tube to compressor head unloader plugged

Excessive •Intercooler restricted or plugged
intercooler pressure •Compressor valves in second stage broken or not functioning properly

(Two stage models only) •Pilot valve or pressure switch set incorrectly or defective

•Pressure gauge defective

Industrial / Air Master Series Quincy Compressor
50161-105, March 2008 34 3501 Wismann Lane, Quincy Ill. - 62305-3116

Trouble Probable Cause

Intercooler pressure •Compressor valves or head unloaders in first stage not functioning
abnormally low properly or defective

(Two stage models only) •Restricted air inlet filter or suction line

•Pilot valve or pressure switch set incorrectly or defective

•Pressurized air at head unloader not venting properly when demand for
air is required

•Compressor valve or head gasket leaking

•Worn piston rings

•Defective pressure gauge

•Leaking air at intercooler or intercooler connections

Compressor overheats •Clogged intake system

•Defective compressor valves

•Pressure setting too high

•Clogged intercooler, internally or externally

•Inadequate ventilation, or recirculation of hot air

•Pulley/sheave rotation wrong

•Incorrect speed

•Running clearances insufficient (piston to cylinder wall or running gear)

•Lubrication inadequate

•Compressor incorrectly sized

High discharge •Compressor valve assemblies defective
temperature •Discharge pressure too high

•Inadequate ventilation or hot air recirculating

•Cooling surfaces of compressor or intercooler excessively dirty

•Internal surface of heat exchanger fouled

•Ambient temperature too high

•Scored or excessively worn cylinder walls

Compressor knocks •Head clearance insufficient

•Piston loose in cylinder bore, cylinder bore worn, piston or piston rings
worn

•Worn rods or main bearing

•Wrong pressure setting, discharge pressure excessive

•Crankcase lubrication inadequate

•Loose pulley/sheave

•Compressor valve assemblies loose

Industrial / Air Master Series Quincy Compressor
50161-105, March 2008 35 3501 Wismann Lane, Quincy Ill. - 62305-3116

Trouble Probable Cause

Excessive oil consumption •Compressor runs unloaded too long

•Worn piston rings

•Restricted intake system

•Compressor running too hot

•Breather valve not functioning properly

•Oil level in crankcase too high

•Oil viscosity wrong for the application

•Connecting rod out of alignment, bent or twisted

•Leaking oil seal

•Piston rings not seated (allow 100 hours for seating)

•Wrong oil (may be a detergent oil with a tendency to foam)

•Inferior grade of oil

Excessive current draw •Low voltage (must be within 10% of nameplate voltage)
(To determine maximum •Loose electrical connection
amperage allowed, multiply •Wire size too small
the FLA on the motor •Incorrect oil
nameplate by the service •Discharge pressure too high
factor.) •Intercooler plugging

CAUTION ! •Bearings tight or seizing
Motor surface temperature •No crankshaft endplay
normally exceeds 170° F. •Motor sized incorrectly

•Motor defective

•Drive belts too tight

Failure to start •Power not on

•Blown circuit fuse

•Thermal overload fuses tripped

•Low voltage

•Faulty start switch

•Power failure

•Pressure switch incorrectly adjusted or faulty

•Loose or broken wire

•Motor defective

•Compressor seized

Motor stalls •Motor overloaded (refer to Excessive current draw)

Industrial / Air Master Series Quincy Compressor
50161-105, March 2008 36 3501 Wismann Lane, Quincy Ill. - 62305-3116

SECTION 7SECTION 7

SECTION 7

SECTION 7SECTION 7

Decal Locations

REFERENCE INFORMAREFERENCE INFORMA

REFERENCE INFORMA

REFERENCE INFORMAREFERENCE INFORMA

TIONTION

TION

TIONTION

Typical QT & PLT Series Unit with Horizontal Receiver

Industrial / Air Master Series Quincy Compressor
50161-105, March 2008 37 3501 Wismann Lane, Quincy Ill. - 62305-3116

Typical QT & PLT Series Unit with Vertical Receiver

Industrial / Air Master Series Quincy Compressor
50161-105, March 2008 38 3501 Wismann Lane, Quincy Ill. - 62305-3116

Typical QT & PLT Series Engine Driven Unit with Horizontal Receiver

Industrial / Air Master Series Quincy Compressor
50161-105, March 2008 39 3501 Wismann Lane, Quincy Ill. - 62305-3116

QUINCY COMPRESSOR

STANDARD TERMS AND CONDITIONS

LEGAL EFFECT: Except as expressly otherwise agreed to in writing by an authorized representative of Seller, the
following terms and conditions shall apply to and form a part of this order and any additional and/or different terms
of Buyer’s purchase order or other form of acceptance are rejected in advance and shall not become a part of this
order.

The rights of Buyer hereunder shall be neither assignable nor transferable except with the written consent of Seller.
This order may not be canceled or altered except with the written consent of Seller and upon terms which will indemnify

Seller against all loss occasioned thereby. All additional costs incurred by Seller due to changes in design or
specifications, modification of this order or revision of product must be paid for by Buyer.

In addition to the rights and remedies conferred upon Seller by this order, Seller shall have all rights and remedies
conferred at law and in equity and shall not be required to proceed with the performance of this order if Buyer is in
default in the performance of such order or of any other contract or order with seller.

TERMS OF PAYMENT: Unless otherwise specified in the order acknowledgment, the terms of payment shall be 1%
15, net forty-five (45) days after shipment. These terms shall apply to partial as well as complete shipments. If any
proceeding be initiated by or against Buyer under any bankruptcy or insolvency law, or in the judgment of Seller the
financial condition of Buyer, at the time the equipment is ready for shipment, does not justify the terms of payment
specified, Seller reserves the right to require full payment in cash prior to making shipment. If such payment is not
received within fifteen (15) days after notification of readiness for shipment, Seller may cancel the order as to any
unshipped item and require payment of its reasonable cancellation charges.

If Buyer delays shipment, payments based on date of shipment shall become due as of the date when ready for
shipment. If Buyer delays completion of manufacture, Seller may elect to require payment according to percentage
of completion. Equipment held for Buyer shall be at Buyer’s risk and storage charges may be applied at the discretion
of Seller.

Accounts past due shall bare interest at the highest rate lawful to contract for but if there is no limit set by law, such
interest shall be eighteen percent (18%). Buyer shall pay all cost and expenses, including reasonable attorney’s fees,
incurred in collecting the same, and no claim, except claims within Seller’s warranty of material or workmanship, as
stated below, will be recognized unless delivered in writing to Seller within thirty (30) days after date of shipment.

TAXES: All prices exclude present and future sales, use, occupation, license, excise, and other taxes in respect of
manufacture, sales or delivery, all of which shall be paid by Buyer unless included in the purchase price at the proper
rate or a proper exemption certificate is furnished.

ACCEPTANCE: All offers to purchase, quotations and contracts of sales are subject to final acceptance by an
authorized representative at Seller’s plant.

DELIVERY: Except as otherwise specified in this quotation, delivery will be F. O. B. point of shipment. In the absence
of exact shipping instruction, Seller will use its discretion regarding best means of insured shipment. No liability will
be accepted by Seller for so doing. All transportation charges are at Buyer’s expense. Time of delivery is an estimate
only and is based upon the receipt of all information and necessary approvals. The shipping schedule shall not be
construed to limit seller in making commitments for materials or in fabricating articles under this order in accordance
with Seller’s normal and reasonable production schedules.

Seller shall in no event be liable for delays caused by fires, acts of God, strikes, labor difficulties, acts of governmental
or military authorities, delays in transportation or procuring materials, or causes of any kind beyond Seller’s control.
No provision for liquidated damages for any cause shall apply under this order. Buyer shall accept delivery within
thirty (30) days after receipt of notification of readiness for shipment. Claims for shortages will be deemed to have
been waived if not made in writing with ten (10) days after the receipt of the material in respect of which any such
shortage is claimed. Seller is not responsible for loss or damage in transit after having received “In Good Order”
receipt from the carrier. All claims for loss or damage in transit should be made to the carrier.

Industrial / Air Master Series Quincy Compressor
50161-105, March 2008 40 3501 Wismann Lane, Quincy Ill. - 62305-3116

TITLE & LIEN RIGHTS: The equipment shall remain personal property, regardless of how affixed to any realty or
structure. Until the price (including any notes given therefore) of the equipment has been fully paid in cash, Seller
shall, in the event of Buyer’s default, have the right to repossess such equipment.

PATENT INFRINGMENT: If properly notified and given an opportunity to do so with friendly assistance, Seller will
defend Buyer and the ultimate user of the equipment from any actual or alleged infringement of any published United
States patent by the equipment or any part thereof furnished pursuant hereto (other than parts of special design,
construction, or manufacture specified by and originating with Buyer), and will pay all damages and costs awarded
by competent court in any suit thus defended or of which it may have had notice and opportunity to defend as aforesaid.

STANDARD WARRANTY: Seller warrants that products of its own manufacture will be free from defects in
workmanship and materials under normal use and service for the period specified in the product instruction manual.
Warranty for service parts will be Ninety (90) days from date of factory shipment. Electric Motors, gasoline and diesel
engines, electrical apparatus and all other accessories, components and parts not manufactured by Seller are
warranted only to the extent of the original manufacturer’s warranty.

Notice of the alleged defect must be given to the Seller, in writing with all identifying details including serial number,
type of equipment and date of purchase within thirty (30) days of the discovery of the same during the warranty period.

Seller’s sole obligation on this warranty shall be, at its option, to repair or replace or refund the purchase price of any
product or part thereof which proves to be defective. If requested by Seller, such product or part thereof must be
promptly returned to seller, freight prepaid, for inspection.

Seller warrants repaired or replaced parts of its own manufacture against defects in materials and workmanship under
normal use and service for ninety (90) days or for the remainder of the warranty on the product being repaired.

This warranty shall not apply and Seller shall not be responsible or liable for:
(a) Consequential, collateral or special losses or damages;
(b) Equipment conditions caused by fair wear and tear, abnormal conditions of use, accident, neglect or misuse

of equipment, improper storage or damage resulting during shipping;
(c) Deviation from operating instructions, specifications or other special terms of sale;
(d) Labor charges, loss or damage resulting from improper operation, maintenance or repairs made by

person(s) other than Seller or Seller’s authorized service station.
In no event shall Seller be liable for any claims whether arising from breach of contract or warranty or claims of

negligence or negligent manufacture in excess of the purchase price.
THIS WARRANTY IS THE SOLE WARRANTY OF SELLERS AND ANY OTHER WARRANTIES, WHETHER

EXPRESS OR IMPLIED IN LAW OR IMPLIED IN FACT, INCLUDING ANY WARRANTIES OF MERCHANTABILITY
AND FITNESS FOR PARTICULAR USE ARE HEREBY SPECIFICALLY EXCLUDED.

LIABILITY LIMITATIONS: Under no circumstances shall the Seller have any liability for liquidated damages or for
collateral, consequential or special damages or for loss of profits, or for actual losses or for loss of production or
progress of construction, whether resulting from delays in delivery or performance, breach of warranty, negligent
manufacture or otherwise.

ENVIROMENTAL AND OSHA REQUIREMENTS: At the time of shipment of the equipment from the factory, Quincy
Compressor / Ortman Fluid Power will comply with the various Federal, State and local laws and regulations
concerning occupational health and safety and pollution. However, in the installation and operation of the equipment
and other matters over which the seller has no control, the Seller assumes no responsibility for compliance with those
laws and regulations, whether by the way of indemnity, warranty or otherwise.

June 30, 2003

Industrial / Air Master Series Quincy Compressor
50161-105, March 2008 41 3501 Wismann Lane, Quincy Ill. - 62305-3116

*QRD Series excluded 50253-100

mnchklst.doc

MAINTENANCE SCHEDULE CHECKLIST

Use this form to develop a routine maintenance schedule and record of performed maintenance. In the numbered columns enter the initials
of the person who performed the maintenance and the date. Enter additional maintenance procedures in the spaces provided in the left hand
column as needed per your application.

Equipment operating under humid or dirty conditions may require shorter intervals between scheduled maintenance.

The instruction manual provided with Quincy Compressor products, as well as any instructions supplied by manufacturers of supporting
equipment, should be read and understood prior to performing maintenance.

NOTE: Make your entries on a copy of this form. Retain this original form to make more copies in the future.

Suggested Weekly (40 hrs.) Intervals

Maintenance Procedures 1 2 3 4 5 6 7 8 9 10 11 12

•manually test pressure relief valves

•

•clean surfaces of intercooler

•

•check distribution system for leaks

•

•check for contaminated lubricant *

•

•check for compressor/vacuum leaks

•

•

Suggested Monthly (160 hrs.) Intervals

Maintenance Procedures 1 2 3

•check belt tension (if applicable)

•

•torque sheave fasteners (if applicable)

•

•change lubricant (& filter if applicable)*

•

ReciprRecipr

ocating / Systems:ocating / Systems:

Recipr

ocating / Systems: 217.222.7700

ReciprRecipr

ocating / Systems:ocating / Systems:

Air MasterAir Master

Air Master 217.277.0270

Air MasterAir Master

E-mail:E-mail:

E-mail: [e-mail]

E-mail:E-mail:

WW

ebsite:ebsite:

W

ebsite: quincycompressor.com

WW

ebsite:ebsite:

quincyairmaster.com

© 2006 Quincy Compressor, an EnPro Industries company

All Rights Reserved. Litho in U.S.A.