MAYEKAWA M Series User manual

2202G1JE-DA-M-N_2010.01.
Third Edition 2010/1/5
3–14–15 Botan Koto-ku, Tokyo 135-8482, Japan
Reciprocating Compressor
M Series Operation Manual
4M/6M/8M/62M/62M-FM
CAUTION
Before operating, inspecting, or servicing the compressor, read this manual thoroughly to fully
understand the contents.
Keep this operation manual in a safe, designated place for future reference whenever the
manual is needed.

2202G1JE-DA-M-N_2010.01.
Preface
Reciprocating Compressor M Series
i
Preface
Thank you for having purchased our M series reciprocating compressor (hereinafter indicated as "this
machine").
This operation manual (hereinafter indicated as "this manual") describes safety information, operational and
maintenance procedures in detail for safe and effective use of this product.
Before installing or using this product, make sure you read this manual.
Keep this manual in a safe place near the product for quick reference.

2202G1JE-DA-M-N_2010.01.
Warranty and Disclaimer
Reciprocating Compressor M Series
ii
Warranty and Disclaimer
Warranty Clauses
If malfunctions or damages occur under proper usage (conditions) following documents such as operation
manual or drawings of this product, or, if MAYEKAWA judges that malfunctions or damages are related to
design or manufacture of the product, and if the malfunctions or damages are within the warranty period, we
will repair or replace the product without any charges.
The warranty period is "12 months from factory shipment of this product".
MAYEKAWA is not liable for production or man made disaster compensation due to malfunction or damage
of this product.
Disclaimer Clauses (Exclusion of Warranty Clauses)
Although MAYEKAWA warrants the clauses mentioned above, the following clauses are exempted.
Malfunction or damage of this product caused by natural disaster, or other accidental forces (such as
fire, thunderbolt, windstorm, intense rainfall, flood, tidal wave, earthquake, land subsidence, e.t.c).
Malfunction or damage caused by misusage described below.
Malfunction, damage, or defect of this product due to abnormal or improper use (such as storing
this product for middle to long term outside the building or in locations subject to high
temperatures and high humidity, unexpected inspections, tests, operations, and excessive repetition
start-up/stoppage of the product.)
Malfunction or damage caused by devices or equipments not provided by MAYEKAWA including
operation control methods of those devices.
Malfunction or damage caused by refrigerants, gases, or refrigerant oils, and operating conditions
(design conditions) not approved for this product.
Malfunction or damage caused by maintenance or inspection not recommended by MAYEKAWA.
Malfunction or damage caused by parts that are not Mayekawa genuine.
Malfunction or damage caused by remodeling the product without approval of MAYEKAWA.
Malfunction or damage caused by unexpected misusage

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Important Information
Reciprocating Compressor M Series
iii
Important Information
Intended Use of the Product
This product is a universal screw compressor intended for refrigeration, cold storage, and air conditioning. Do
not use the product for any other purposes that are not intended for or which depart from the specifications.
For specifications of this product, refer to "2.2 Compressor Specifications".
When performing maintenance use qualified refrigeration personnel.
Important Information for Safe Use of the Product
Although MAYEKAWA has paid a lot of attention to safety measures for this product, all hazards including
potential hazards caused by human errors, or due to environmental conditions can not be anticipated.
There are guidelines that must be observed for operating this product. However, the warnings in this manual
and safety labels on the product are not all inclusive. When operating this product, pay extreme caution on
personnel safety as well as on items described in this manual.
Important rules for safety work with the product that apply to all workers including managers and supervisors
are listed below.
Before using this product, carefully read and fully understand the contents written in this manual and pay
attention to safety.
Operation, maintenance, and inspection of this product should be performed by qualified personnel
educated about the fundamentals of the product and trained about hazards involved and measures to
avoid danger.
Do not allow any person other than those educated on the fundamental expertise of the product and
trained about hazards involved and measures to avoid dangers to approach the product while it is
operating or during maintenance.
Observe all related federal/national and local codes and regulations.
To prevent accidents, do not carry out any operation or maintenance other than those described in this
manual, or use the product for any unapproved purpose.
Replace the parts with the genuine parts.
Not only workers but also managers should actively participate safety and health activities in the
workplace to prevent accidents.
Observe the following precautions when performing maintenance work on electrical control.
Electrical maintenance of the product must be performed by certified/qualified personnel and only those
educated about the electrical control of the product.
Before servicing or inspecting the electrical equipments or devices, turn "OFF" the motor main power
and control power, and perform lockout/tagout to prevent the power from being turned on during work.
Even when the motor main power and control power are turned "OFF", the product may be turned on if the
power is supplied from outside the refrigeration system, cold storage, and air conditioning system. Make sure
the power supply on the power source side is shut off, and perform lockout/tagout to prevent the product from
being turned on during work.

2202G1JE-DA-M-N_2010.01.
Important Information
Reciprocating Compressor M Series
iv
About This Manual
This product may be modified without prior notice. Therefore, the appearance of actual machine may
differ from the descriptions in this manual. If you have any questions contact your sales offices or
service centers.
This manual is in English. If any other language is required it is the customers responsibility to prepare
a manual for safety education and operation instructions.
This manual is copyrighted. Drawings and technical references including this manual shall not, in
whole or part, be copied, photocopied, or reproduced into any electronic medium or machine-readable
form without prior permission from MAYEKAWA.
Photographs or drawings included in this manual may differ from the appearance of actual product.
If this manual is lost or damaged, immediately place a purchase order to your local sales office or
service center for a new manual. Using the product without the manual may result in safety issues.
If you resell the product, never fail to attach this manual to the product.
Construction of This Manual
Title of section and chapter Description details
Preface Describes the outline of this manual and how to read this manual.
Warranty and Disclaimer Describes clauses and coverage of warranty.
Exclusion of warranty clauses is described as disclaimer.
Important Information Describes important information related to the machine and this manual.
1. Safety
Describes safety information for the worker, safety rules for this machine,
and management details regarding the work safety that is required for
handling the machine.
2. Configuration and
Specification of Compressor
Describes the main components of the machine, functional information,
specification, and service limits.
3. Installation Describes the installation procedure of the machine.
4. Operation of the Compressor
and the System
Describes the precautions for operating the machine.
5. Maintenance Describes sections and period for inspecting, and assembly and
disassembly of this product.
6. Troubleshooting Describes the methods of the machine in case of problem occurring during
operation of the machine.
7. Related Document Describes information such as illustrated parts breakdown and parts list.
How to Order Genuine Parts
Confirm the applicable parts in "7.1 Development View and Configuration Table of the Parts" of "Chapter 7,
Related Document". And inform the “Product Name, Part Number, Part Name, and required quantity” to your
local sales offices or service centers.

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Reciprocating Compressor M Series
v
Inquiry
If you need further information or have any questions, please contact your local sales offices or service
centers.
1. Domestic
Description Address Tel/Facsimile
Head office
〒135-8482
3–14–15 Botan Koto-ku, Tokyo
TEL:[phone]
FAX:[phone]
Moriya plant 〒302-0118
2000, Taysuzawa Moriya-shi, Ibaraki-pref
TEL:[phone]
FAX:[phone]
Hokkaido office 〒063-0803
2-5-1, 3-jyo Nijuuyonken Nishi-ku, Sapporo-city, Hokkaido
TEL:[phone]
FAX:[phone]
Tohoku office 〒983-0012
2-5-12, Ideka, Miyagino-ku, Sendai-shi, Miyagi-pref.
TEL:[phone]
FAX:[phone]
Hokushinetsu
office
〒950-0925
Oyama-build. 303, 1-2-34, Bentenbashi-dori, Chuo-ku, Niigata-shi,
Niigata-pref.
TEL:[phone]
FAX:[phone]
Kanto office 〒135-8482
3–14–15 Botan Koto-ku, Tokyo
TEL:[phone]
FAX:[phone]
Tokai office 〒422-8034
1-15-36, Takamatsu, Suruga-ku, Shizuoka-shi, Shizuoka-pref.
TEL:[phone]
FAX:[phone]
Chubu office 〒460-0002
2-9-6, Marunouchi, Naka-ku, Nagoya-shi, Aichi-pref.
TEL:[phone]
FAX:[phone]
Kansai office 〒553-0001
1-4-27, Ebie, Fukushima-ku, Osaka-shi, Osaka
TEL:[phone]
FAX:[phone]
Chugoku office 〒739-2117
2-3-40, Takayadai, Higashihiroshima-shi, Hiroshima-pref.
TEL: [phone]
FAX: [phone]
Shikoku office 〒761-8074
410-1, Otakamimachi, Takamatsu-shi, Kagawa-pref.
TEL:[phone]
FAX:[phone]
Kyushu office 〒810-0802
Fukuoka-fujiland-build. 10F, 2-3, Nakajima-cho, Nakasu,
Hakata-ku, Fukuoka-shi, Fukuoka-pref.
TEL:[phone]
FAX:[phone]
2. Overseas
Description Location Telephone and
facsimile No.
NORTH AMERICA
MYCOM CANADA LTD.
(VANCOUVER OFFICE)
UNIT 110, 6620 MCMILLAN WAY,
RICHMOND, B.C., V6W 1J7, CANADA
TEL: [phone]
FAX: [phone]
MYCOM CANADA LTD.
(TORONTO OFFICE)
1745 BONHILL ROAD,
UNIT #6&7 MISSISSAUGA,
ONTARIO, L5T 1C1, CANADA
TEL: [phone]
FAX: [phone]
MAYEKAWA U.S.A. INC.
(HEAD OFFICE)
8750 WEST BRYN MAWR AVENUE,
SUITE 190 CHICAGO, IL 60631, U.S.A.
TEL: [phone]
FAX: [phone]
MAYEKAWA U.S.A. INC.
INDUSTRIAL REFRIGERATION
DIVISION (MIAMI OFFICE)
7220 N.W. 32TH AVE., SUITE 303,
MIAMI, FL 33166, U.S.A.
TEL: [phone]
FAX: [phone]
MAYEKAWA U.S.A. INC.
INDUSTRIAL REFRIGERATION
DIVISION (CHARLOTTE OFFICE)
15905 BROOKWAY DRIVE UNIT 4208
HUNTERSVILLE, NC 28078, U.S.A.
TEL: [phone]
FAX: [phone]

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Description Location Telephone and
facsimile No.
MAYEKAWA U.S.A. INC.
INDUSTRIAL REFRIGERATION
DIVISION (NASHVILLE OFFICE)
SUITE 203 BROOKSIDE LANDING
1550 N MT JULIET RD.,
MT JULIET, TN 37122, U.S.A
TEL: [phone]
FAX: [phone]
MAYEKAWA U.S.A. INC.
INDUSTRIAL REFRIGERATION
DIVISION (LA OFFICE, FACTORY)
19475 GRAMERCY PLACE,
TORRANCE, CA 90501, U.S.A.
TEL: [phone]
FAX: [phone]
MAYEKAWA U.S.A. INC.
INDUSTRIAL REFRIGERATION
DIVISION (SEATTLE OFFICE)
2615 W CASINO ROAD, UNIT-3D,
EVERETT, WA 98204, U.S.A.
TEL: [phone]
FAX: [phone]
MAYEKAWA U.S.A. INC.
INDUSTRIAL REFRIGERATION
DIVISION
(MODESTO OFFICE)
4718 GREEN LEAF COURT,
SUITE 5 MODESTO, CA 95356, U.S.A.
TEL: [phone]
FAX: [phone]
MAYEKAWA U.S.A. INC.
INDUSTRIAL REFRIGERATION
DIVISION
(SAN FRANCISCO OFFICE)
1840 GATEWAY DRIVE, # 226 SAN MATEO,
CA 94404, U.S.A.
TEL: [phone]
FAX: —
MAYEKAWA U.S.A.INC.
INDUSTRIAL REFRIGERATION
DIVISION (SAN ANTONIO OFFICE)
16825 IH 35 NORTH SELMA,
TX 78154, U.S.A.
TEL: [phone]
FAX: [phone]
MAYEKAWA U.S.A. INC.
INDUSTRIAL REFRIGERATION
DIVISION (NY OFFICE)
303 SOUTH BROADWAY,
SUITE 102 TARRYTOWN,
NEW YORK 10591, U.S.A.
TEL: [phone]
FAX: [phone]
MAYEKAWA U.S.A. INC.
INDUSTRIAL REFRIGERATION
DIVISION (YORK OFFICE)
3395 FARMTRAIL ROAD YORK,
PA 17406, U.S.A.
TEL: [phone]
FAX: [phone]
MAYEKAWA U.S.A.INC.
MANUFACTURING DIVISION
(SAN ANTONIO OFFICE, FACTORY)
16825 IH 35 NORTH SELMA,
TX 78154, U.S.A.
TEL: [phone]
FAX: [phone]
MAYEKAWA U.S.A. INC.
CHEMICAL PROCESS DIVISION
19475 GRAMERCY PLACE,
TORRANCE, CA 90501, U.S.A.
TEL: [phone]
FAX: [phone]
MAYEKAWA U.S.A. INC.
CHEMICAL PROCESS DIVISION
(HUSTON OFFICE)
3222 PASADENA FREEWAY PASADENA,
TX 77503, U.S.A.
TEL: [phone]
FAX: [phone]
EUROPE
N.V.MAYEKAWA EUROPE S.A.
(HEAD OFFICE, FACTORY)
LEUVENSESTEENWEG 605,
1930 ZAVENTEM, BELGIUM
TEL: [phone]
FAX: [phone]
N.V.MAYEKAWA EUROPE S.A.
ZWEGNIEDEALASSUNG
DEUTSHLANSD
NUERNBERGER STRASSE 118,
97076 WUERZBURG, DEUTSCHLAND
TEL: [phone]
FAX: [phone]
MAYEKAWA UK REPRESENTATIVE
OFFICE
16 OAKHURST GARDENS, BEXLEYHEATH,
KENT DA7 5JP, UNITED KINGDOM
TEL: [phone]
FAX: [phone]
MAYEKAWA. S.L. CALLE MONTEVIDEO 5, NAVE 13 POL.
INDUSTRIAL CAMPORROSO 28806 ALCALA
DE HENARES, MADRID, SPAIN
TEL: [phone]
FAX: [phone]
MAYEKAWA EUROPE S.A.
SUCCURSALE FRANCAISE
9, RUE MICHAEL FARADAY, 78180
MONTIGNY-LE-BRETONNEUX, FARNCE
TEL: [phone]
FAX: [phone]
MAYEKAWA MFG. CO., LTD.
MOSCOW LIAISON OFFICE
HOUSE 3, FLAT 54, MYTNAYA ST,
MOSCOW, 119049 RUSSIA
TEL: [phone]
FAX: [phone]
MYCOM INTERTEC AG ROSENBERGSTRASSE 31, CH-6300 ZUG,
SWITZERLAND
TEL: [phone]
FAX: [phone]
MAYEKAWA EUROPE S,A,
DUBAI OFFICE
P.O.BOX.61349, LOB.11.NO.126,
JEBEL ALI FREE ZONE, DUBAI, U.A.E.
TEL: [phone]
FAX: [phone]
MAYEKAWA BULGARIA
REPRENSETATIVE OFFICE
94, HRISTO BOTEV STR. 1202, SOFIA,
BULGARIA
TEL: [phone]
FAX: [phone]
MYCOM REFRIGERATION
INDIA PVT.LTD.
#30 CENTRUM PLAZA,
GOLF COURESE ROAD, SECTOR 53,
GURAGAON, HARYANA, 122002,
REPBLIV OF INDIA
TEL: [phone]
FAX: [phone]
MAYEKAWA AUSTRALIA
PTY.LTD.
UNIT 2, 44 MCCAULEY STREET
MATRAVILLE NSW 2036, AUSTRALIA
TEL: [phone]
FAX: [phone]

2202G1JE-DA-M-N_2010.01.
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Reciprocating Compressor M Series
vii
Description Location Telephone and
facsimile No.
MAYEKAWA AUSTRALIA PTY.
LTD.(NEW ZEALAND BRANCH)
30 TUI STREET OTAHUHU PO. BOX 12106
AUCKLAND NEWZELAND
TEL: [phone]
FAX: [phone]
ASIA
P.T.MYCOM INDONESIA GRAHA PRATAMA BUILDING, 9TH FLOOR
JI. M. T. HARYONO KAV.15 JAKARTA 12810,
INDONESIA
TEL: [phone]
FAX: [phone]
MAYEKAWA (M) SDN. BHD. 35-1, BLOCK D1, DATARAN PRIMA,
JALAN PJU 1/41, KELANA JAYA,
47301 PETALING JAYA,
SELANGOR, MALAYSIA
TEL: [phone]
FAX: [phone]
MYCOM PHILIPPINES CORP. UNIT 2706 UNION BANK PLAZA
MERALCO AVENUE CORNER ONYX St.
ORTIGAS CENTER, PASIG CITY 1605,
PHILIPPINES
TEL: [phone]
FAX: [phone]
MYCOM PHILIPPINES CORP.
(GENARAL SANTOS OFFICE)
ROOM 4, LEAH DAPROZA BUILDING
FISCAL DAPROZA AVENUE
GENERAL SANTOS CITY 9500
TEL: [phone]
FAX: [phone]
MAYEKAWA SINGAPORE
PTE.LTD.
6 TAGORE LANE SINGAPORE 787470 TEL: [phone]
FAX: [phone]
MYCOM INDUSTRY CO., LTD.
(HEAD OFFICE)
1F., NO.2, SHIN JANN ROAD,
CHIEN CHEN DIST., KAOHSIUNG,
TAIWAN 80672, REP.OF CHINA
TEL: [phone]
FAX: [phone]
MYCOM INDUSTRY CO., LTD.
CHEMICAL DEPARTMENT
1F., NO.2, SHIN JANN ROAD,
CHIEN CHEN DIST., KAOHSIUNG,
TAIWAN 80672, REP.OF CHINA
TEL: [phone]
FAX: [phone]
MYCOM INDUSTRY CO., LTD.
TAIPEI BRANCH
10F-4, NO, 421, SONG-SHAN ROAD, TAIPEI,
TAIWAN 11083, REP. OF CHINA
TEL: [phone]
FAX: [phone]
MYCOM INDUSTRY CO., LTD.
TAICHUNG BRANCH
NO. 19, SEC.3, HUANJUNG RD., TAICHUNG,
TAIWAN, REP. OF CHINA
TEL: [phone]
FAX: [phone]
MAYEKAWA CHINA INDUSTRIES
CO., LTD.
ROOM 705,
WISE LOGIC INTERNATIONAL CENTER,
NO.66 NORTH SHANXI RD.,
SHANGHAI, 200041, CHINA
TEL: [phone]
FAX:[phone]
MAYEKAWA CHINA INDUSTRIES
CO., LTD.
QINGDAO OFFICE
ROOM 503, FULIN BUILDING
NO.87 SOUTH FUZHOU ROAD,
SOUTH DISTRICT, QINGDAO CITY, 266071,
CHINA
TEL: [phone]
FAX:
(86) 532-8602-6269
MAYEKAWA MFG. CO., LTD
BEIJING LIAISON OFFICE
NO.7B222 HANWEI PLAZA,
NO.7 GUANGHUA ROAD,
CHAOYANG DISTRICT,
BEIJING 100004, CHINA
TEL: [phone]
FAX: [phone]
MAYEKAWA (THAILAND) CO.,
LTD.
2/3 MOO 14,
9TH FLOOR BANGNA TOWER BLDG., TOWER
A,
BANGNA-TRAD RD, K.M.6.5,
BANGKAEW BANGPLEE,
SAMUTPRAKARN 10540, THAILAND
TEL: [phone]
FAX: [phone]
MAYEKAWA (THAILAND) CO.,
LTD.
TRANG BRANCH
1/7 TRANG-PALIAN RD., MUANG,
TRANG 92000, THALAND
TEL: [phone]
FAX: [phone]
MAYEKAWA HOLDING
(THAILAND) CO., LTD.
2/3 MOO 14,
9TH FLOOR BANGNA TOWER BLDG., TOWER
A,
BANGNA-TRAD RD, K.M.6.5,
BANGKAEW BANGPLEE,
SAMUTPRAKARN 10540, THAILAND
TEL: [phone]
FAX: [phone]
MAYEKAWA MFG.CO., LTD.
HO CHI MINH CITY
REPRESENTATIVE OFFICE
ROOM 305, 3FL, TOUI TRE TOWER,
60A HOANG VAN THU, WARD 9,
PHU NHUAN DIST., HO CHI MINH CITY,
VIETNAM
TEL: [phone]
FAX: [phone]

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Description Location Telephone and
facsimile No.
MAYEKAWA VIETNAM ONE
MEMBER COMPANY LIMITED
(MAYEKAWA VIETNAM)
ROOM 305, 3FL, TOUI TRE TOWER,
60A HOANG VAN THU, WARD 9,
PHU NHUAN DIST., HO CHI MINH CITY,
VIETNAM
TEL: [phone]
FAX: [phone]
MYCOM KOREA CO., LTD.
HEAD OFFICE
JUYEON BUILDING 2F, SEOGYE-DONG 209,
YONGSAN-KU, SEOUL, 140-710,
REP.OF KOREA
TEL: [phone]
FAX: [phone]
MYCOM KOREA CO., LTD.
CHANGWON FACTORY
PALYONG DONG 24-20,
CHANGWON KYUNGSANGNAM-DO 641847,
REP.OF KOREA
TEL: [phone]
FAX: [phone]
MYCOM KOREA CO., LTD.
PUSAN BRANCH
TONG YOUNG SU SAN 6F,
763-20 KAMCHEON-DONG, SAHA-KU,
PUSAN 604-806, REP.OF KOREA
TEL: [phone]
FAX: [phone]
MYCOM KOREA CO., LTD.
GWANGJU BRANCH
970-6 WOLCHUL-DONG PUK-KU GWANGJU
500-460, REP. OF KOREA
TEL: [phone]
FAX: [phone]
LATIN AMERICA
MAYEKAWA ARGENTINA S.A.
(BUENOS AIRES OFFICE)
AV. VELEZ SARSFIELD 670/74 C1282
AFT-CAPITAL FEDERAL BUENOS AIRES,
REPUBLICA ARGENTINA
TEL: [phone]
FAX: [phone]
MAYEKAWA ARGENTINA S.A.
(PUERTO MADRYN OFFICE)
OFICINA PTO. MADRYN LEOPOLDO
LUGONES 45 (U9129KDA)-PUERTO MADRYN
ＰＣＩＡ DE CHUBUT REPUBLICA ARGENTINA
TEL: [phone]
FAX: [phone]
MYCOM PERU S.A.C. CALLE LUIS PASTEUR 1490,
LINCE, LIMA, PERU
TEL: [phone]
FAX: [phone]
MAYEKAWA CHILE S.A.C.el.
(SANTIAGO OFFICE)
CORDILLERA No.331, MODULO D14,
FLEX CENTER, PUERTO VESPUCIO,
QUILICURA, SANTIAGO, CHILE
TEL: [phone]
FAX: [phone]
MAYEKAWA CHILE S.A.C.el.
(CONCEPCION OFFICE)
ANIBAL PINTO No.215, OFICINA 403,
CONCEPCION, CHILE
TEL: [phone]
FAX: [phone]
MAYEKAWA CHILE S.A.C.el.
(PUERTO MONTT OFFICE)
BERNARDINO 1057 MODULO 6,
PARQUE INDUSTRIAL SAN ANDRES
PUERTO MONTT, CHILE
TEL: [phone]
FAX: [phone]
ANREC LTDA TRANSVERSAL 93 NO.53-48 INTERIOR 37,
PAQUE INDUSTRIAL EL DORADO, BOGOTO,
COLOMBIA
TEL: [phone]
FAX: [phone]
MAYEKAWA DO BRASIL REF.
LTDA.
RUA LICATEM 250, JARDIM FAZENDA
RINCAO POLO INDUSTRIAL DE ARUJA-SP,
CEP 07400-000, BRASIL
TEL: [phone]
FAX: [phone]
MAYEKAWA DO BRASIL LTDA.
(BAHIA BRANCH)
RUA DR. JOSE PEROBA, 275 - SALA 902
EDIFICIO METROPOLIS - BAIRRO STIEPE,
SALVADOR-BA, CEP 41770-2325, BRASIL
TEL: [phone]
FAX: —
MAYEKAWA DO BRASIL LTDA.
(BELO HORIZONTE BRANCH)
AV. BARAO HOMEM DE MELLO,
4386 – S 401 ED.EMYR SOARES - BAIRRO
ESTORIL BELO HORIZONTE-MG,
CEP 30450-250, BRASIL
TEL: [phone]
FAX: —
MAYEKAWA DO BRASIL LTDA.
(CHAPECO BRANCH)
RUA FERNANDO MECHADO,
593 D-S 201 CHAPECO-SC
CAIXA POSTAL 177, CEP 89801-973, BRASIL
TEL: [phone]
FAX: [phone]
MAYEKAWA DO BRASIL LTDA.
(CUIABA BRANCH)
AVENIDA ISSAC POVOAS, 586 – SALA 405
EDIFICIO WALL STREET - CENTRO
CUIABA-MT, CEP 78055-560, BRASIL
TEL: [phone]
FAX: —
MAYEKAWA DO BRASIL LTDA.
(CURITIBA BRANCH)
RUA ISABEL A. REDENTORA, 1826 – SALA 8
CENTRO - SAO JOSE DOS PINHAIS-PR,
CEP 83095-980, BRASIL
TEL: [phone]
FAX: —
MAYEKAWA DO BRASIL LTDA.
(CAMPO GRANDE BRANCH)
RUA JOSE ANTONIO PEREIRA, 2200 – S 02
CONDOMINIO COSTA D’OURO CAMPO
GRANDE-MS, CEP 79010-190, BRASIL
TEL: [phone]
FAX: —
MAYEKAWA DO BRASIL LTDA.
(GOIANIA BRANCH)
RUA C, 255 – QUADRA 588 – LOTE 4/8 SALA
1004 – CENTRO EMPRESARIAL SEBBA
GOIANIA-GO, CEP 74280-010, BRASIL
TEL: [phone]
FAX: —

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Description Location Telephone and
facsimile No.
MAYEKAWA DO BRASIL LTDA.
(OESTE PAULISTA BRANCH)
AV. FRANCISCO DE CHAGAS OLIVEIRA,
344 JARDIM PINHEIRO SAO JOSE DO RIO
PRETO-SP, CEP 15091-330, BRASIL
TEL: [phone]
FAX: —
MAYEKAWA DO BRASIL LTDA.
(RECIFE BRANCH)
RUA SA E SOUZA, 687 – SALA 103 SETUBAL
RECIFE-PE, CEP 51030-065, BRASIL
TEL: [phone]
FAX: -
MAYEKAWA DO BRASIL LTDA.
(RIO GRANDE DO SUL BRANCH)
RUA MUCK, 298 – SALA 601 EDIFICIO
SANTA HELENA CANOAS-RS, BRASIL
TEL: [phone]
FAX: -
MAYEKAWA DO BRASIL LTDA.
(MACAE)
RUA PROFESSOR MARIETA PEIXOTO,
62 CENTRO - MACAE – RJ,
CEP 27910-250, BRASIL
TEL: [phone]
FAX: [phone]
MAYEKAWA DO BRASIL LTDA.
(RIO DE JANEIRO BRANCH)
AV. DAS AMERICA, 8445 - LOJA 1309 BARRA
DA TIJUCA, RIO DE JANEIRO-RJ,
CEP 22793-081, BRASIL
TEL: [phone]
FAX: [phone]
MYCOM CENTROAMERICA S.A BODEGA #63, CONDOMINIO COMERCIAL
TIERRA DOS, EL CACIQUE DE RIO SEGUNDO,
ALAJUELA, COSTA RICA
TEL: [phone]
FAX: [phone]
MYCOM VENEZUELA
SALES & SERVICES,C.A.
(CARACAS OFFICE)
CALLE LOS MANGOS,
EDIFICIO SELEMAR, PISO 8,
SABANA GRANDE, CARACAS, VENEZUELA
TEL: [phone]
FAX: [phone]
MYCOM VENEZUELA
SALES & SERVICE, C.A.
(MARACAY OFFICE)
AV.INTERCOMUNAL TURMERO,
EDF.TECHOMAT METROPOLITANO, PISO 1,
OFICINA 3, MARACAY, EDO.ARAGUA,
VENEZUELA
TEL: [phone]
FAX: [phone]
MYCOM VENEZUELA
SALES & SERVICE, C.A.
(MARACAIBO OFFICE)
AV.17 SECTOR LOS HATICOS C.C. PARQUE
INDUSTRIAL ANGELINI, LOCAL #14,
PLANTA ALTA, MARACAIBO, EDO. ZULIA,
VENEZUELA
TEL: [phone]
FAX: [phone]
MYCOM CHEMICAL PROCESS
CORP. DE VENEZUELA S.A.
AV.17 SECTOR LOS HATICOS C.C. PARQUE
INDUSTRIAL ANGELINI, LOCAL #14,
PLANTA ALTA, MARACAIBO, EDO. ZULIA,
VENEZUELA
TEL: [phone]
FAX: [phone]
MAYEKAWA DE MEXICO,
S.A. DE C.V.
(CUERNAVACA OFFICE)
AV.DE LOS 50MTS.NO.381,
CIVAC. JIUTEPEC MORELOS, C.P.62578,
MEXICO
TEL: [phone]
FAX: [phone]
MAYEKAWA DE MEXICO,
S.A. DE C.V.
(MEXICO CITY OFFICE)
AV.COYOACAN #945 COL .DEL VALLE DEL.
BENITO JUAREZ C.P.03100, MEXICO,
D.F. MEXICO
TEL: [phone]
FAX: [phone]
MAYEKAWA DE MEXICO,
S.A. DE C.V.
(GUADALAJARA OFFICE)
SANTA MARIA No.3086, COL. VALLARTA SAN
LUCAS GUADALAJARA, JALISCO, C.P.44690,
MEXICO
TEL: [phone]
FAX: [phone]
MAYEKAWA DE MEXICO,
S.A. DE C.V.
(MONTERREY OFFICE)
AV. HIDALGO 2258 LOCAL 8 COL. OBISPADO
MONTERREY, N.L., C.P.64060, MEXICO
TEL: [phone]
FAX: [phone]
MAYEKAWA DE MEXICO,
S.A. DE C.V.
(OBREGON OFFICE)
CALLE SINALOA NO.611 (ENTRE NICOLAS
BRAVO Y 6 DE ABRIL), COL. CENTRO,
C.P.85000, CD. OBREGON, SON, MEXICO
TEL: [phone]
FAX: [phone]
MAYEKAWA DE MEXICO,
S.A. DE C.V.
(IRAPUATO OFFICE)
CALLE AGUSTIN ZARAGOZA NO.219 LOCAL-2
COL.DEPORTIVA, C.P.36612, IRAPUATO, GTO.
MEXICO
TEL: [phone]
FAX: [phone]
MAYEKAWA DE MEXICO,
S.A. DE C.V.
(CULIACAN OFFICE)
AV. NICOLAS BRAVO 1572, LOCAL 1
COL.MORELOS CULIACAN, SINALOA,
C.P.80170, MEXICO
TEL: [phone]
FAX: [phone]

2202G1JE-DA-M-N_2010.01.
Revision Description
Reciprocating Compressor M Series
x
Revision Description
Operation
manual name
M Series
Operation
Manual
Document
No. 2202G1JE-DA-M-N_2010.01. First edition issue date 2008/4/1
Revision
No.
Issuance
Date
Contents of revisions
(modified clause, page, and details) Created/approved by:
2 2009/2/2 2.2.1 Specification/ 2.3 Selection of V-belt/7.1
Development View and Configuration Table of the
Parts - Parts Configuration Table/7.7 Parts Inspection
and Replacement Standards - “O”ring List
Yamamoto, Yamada
3 2010/1/5 Parts drawing change due to design change, addition of
62M/62M-FM
Yamamoto, Yamada

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Table of Contents
1 Safety
1.1 Observation/Prevention ..............................................................................1-1
1.1.1 Observance (Do's) ................................................................................................. 1-1
1.1.1.1 Do's on Operation........................................................................................ 1-1
1.1.1.2 Do's on Maintenance................................................................................... 1-1
1.1.1.3 Do's on Lockout/Tagout after Shutting off the Power .................................. 1-1
1.1.1.4 Do's about Personal Protective Devices ..................................................... 1-2
1.1.1.5 Do's about Handling of Hazardous and Toxic Substances.......................... 1-2
1.1.1.6 Do's about Handling Emergency Situation.................................................. 1-2
1.1.1.7 Do's about Waste Oil, Fluid, and Materials ................................................. 1-2
1.1.1.8 Other Do's.................................................................................................... 1-2
1.1.2 Don'ts..................................................................................................................... 1-2
1.2 Warnings.......................................................................................................1-3
1.2.1 Types and Meanings of Warnings ......................................................................... 1-3
1.2.2 Safety labels .......................................................................................................... 1-4
1.3 Remaining Hazard........................................................................................1-6
1.4 Safety Devices..............................................................................................1-8
1.4.1 Emergency Stop Button......................................................................................... 1-8
1.4.2 Breakers of Motor Main Power and Control Power
(with Lockout/Tagout Devices) .............................................................................. 1-8
1.4.3 Safety Belt/coupling Guard .................................................................................... 1-9
1.4.4 Safety valve ......................................................................................................... 1-10
1.4.5 Automatic Control and Protection Equipment M compressor.............................. 1-11
1.4.6 Compressor Cooling Fluid Temperature Failure Alarm ....................................... 1-14
1.4.7 Oil Heater and Thermometer Switch ................................................................... 1-14
1.5 Example of Material Safety Data Sheet (MSDS) ......................................1-15
2 Configuration and Specification of Compressor
2.1 Configuration of Compressor.....................................................................2-1
2.1.1 Overall View of Compressor .................................................................................. 2-1
2.1.2 Cross-Sectional View of Assembly ........................................................................ 2-3
2.1.3 Oil Supply Mechanism ........................................................................................... 2-5
2.1.4 Unloader Mechanism............................................................................................. 2-6
2.2 Specification of Compressor ......................................................................2-7
2.2.1 Specification........................................................................................................... 2-7
2.2.2 Service Limits and Range...................................................................................... 2-8
2.2.3 External Dimensions.............................................................................................. 2-9
2.3 Selection of V-belt......................................................................................2-12

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3 Installation
3.1 Safety Precautions for Installation.............................................................3-1
3.2 Installation Works ........................................................................................3-2
3.2.1 Unpacking .............................................................................................................. 3-2
3.2.2 Storage .................................................................................................................. 3-2
3.2.3 Transfer..................................................................................................................3-2
3.2.4 Preparation for Installation..................................................................................... 3-4
3.2.5 Installation..............................................................................................................3-6
3.2.5.1 Installation.................................................................................................... 3-6
3.2.5.2 Position of the Oil Returning Point in the Oil Separator /
Procedure of Oil Returning.......................................................................... 3-6
3.2.5.3 Protection Switch......................................................................................... 3-6
3.2.5.4 Centering of the Compressor/Driving Machine and
Attachment of the V-belt .............................................................................. 3-7
3.2.5.5 Centering of the Compressor/Driving Machine and
Attachment of the Direct Coupling............................................................. 3-10
3.2.5.6 Piping......................................................................................................... 3-12
3.2.5.7 Charging of Refrigerant Oil........................................................................ 3-14
3.2.6 Check after Installation ........................................................................................ 3-14
3.3 Documents Related to Installation *1.......................................................3-15
4 Operation of the Compressor and the System
4.1 Refrigerant Oil ..............................................................................................4-1
4.1.1 Precautions for Selecting the Refrigerant Oil ........................................................ 4-1
4.1.2 Initial Charging Method.......................................................................................... 4-2
4.1.3 Replenishment of the Refrigerant Oil .................................................................... 4-2
4.1.4 Set Oil Pressure..................................................................................................... 4-2
4.1.5 Oil Quantity ............................................................................................................ 4-3
4.2 Initial Operation............................................................................................4-4
4.2.1 Initial Operation Method......................................................................................... 4-4
4.3 Operation Order of the Unloader................................................................4-5
4.4 Operation Notices ........................................................................................4-7
4.4.1 Start/Stop Limitation .............................................................................................. 4-7
4.4.2 Action for Stopping the Compressor for Long Period of Time............................... 4-7
4.4.3 Operation after the Compressor has been stopped for Long Period of Time ....... 4-7
5 Maintenance
5.1 Safety Precautions for Maintenance ..........................................................5-1
5.2 Periodic Inspection......................................................................................5-2
5.2.1 Daily Inspection ..................................................................................................... 5-2
5.2.2 Monthly Inspection................................................................................................. 5-3
5.2.3 Biannual Inspection ............................................................................................... 5-3

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5.3 Maintenance (Overhaul) ..............................................................................5-4
5.3.1 Maintenance Period and Operation Conditions..................................................... 5-4
5.3.2 First Maintenance Period....................................................................................... 5-5
5.3.3 Second Maintenance Period.................................................................................. 5-5
5.4 Refrigerant Oil Control Standard................................................................ 5-6
5.5 Disassembly/Assembly ...............................................................................5-7
5.5.1 Exterior Equipment ................................................................................................ 5-7
5.5.1.1 Attentions for Removing the Oil Cooler Piping/
Water Cooled Type Oil Cooler ..................................................................... 5-9
5.5.1.2 Attentions for Removing the Mechlock........................................................ 5-9
5.5.1.3 Attentions for Removing the Flywheel......................................................... 5-9
5.5.1.4 Attentions for Removing the Motor End Bearing Assembly ...................... 5-10
5.5.1.5 Attentions for Removing the Motor Rotor .................................................. 5-10
5.5.1.6 Attentions for Removing the Motor Cage .................................................. 5-10
5.5.1.7 Attentions for Attaching the Flywheel ........................................................ 5-11
5.5.1.8 Attentions for Attaching the Mechlock ....................................................... 5-11
5.5.1.9 Attentions for Attaching the Motor Rotor ................................................... 5-11
5.5.1.10 Attentions for Attaching the Oil Cooler Piping/
Water Cooled Type Oil Cooler ................................................................... 5-12
5.5.2 Suction/Discharge Area ....................................................................................... 5-13
5.5.2.1 Attentions for Removing the Suction/Discharge Shut-off Valve ................ 5-14
5.5.2.2 Attentions for Attaching the Suction/Discharge Shut-off Valve.................. 5-14
5.5.2.3 Attentions for Removing the Discharge Manifolds .................................... 5-14
5.5.2.4 Attentions for Attaching the Discharge Manifolds...................................... 5-15
5.5.3 Head Cover/Hand Hole Cover ............................................................................. 5-17
5.5.3.1 Attentions for Removing the Head Jacket Cover ...................................... 5-18
5.5.3.2 Attentions for Removing the Head Cover.................................................. 5-18
5.5.3.3 Attentions for Removing the Hand Hole Cover ......................................... 5-19
5.5.3.4 Attentions for Attaching the Hand Hole Cover........................................... 5-20
5.5.3.5 Attentions for Attaching the Head Cover ................................................... 5-20
5.5.3.6 Attentions for Attaching the Head Jacket Cover........................................ 5-21
5.5.4 Valve Plate/Piston Assembly/Cylinder Sleeve Assembly.................................... 5-22
5.5.4.1 Attachment of the Spacer （4M/6M/8M/62M）............................................ 5-23
5.5.4.2 Attachment of Knob Bolt (62M-FM）.......................................................... 5-23
5.5.4.3 Attentions for Removing the Valve Plate ................................................... 5-24
5.5.4.4 Attentions for Removing the Piston Assembly .......................................... 5-24
5.5.4.5 Attentions for Attaching the Cylinder Sleeve Assembly............................. 5-24
5.5.4.6 Attentions for Attaching the Piston Assembly ............................................ 5-25
5.5.4.7 Attentions for Attaching the Suction Plate Valve/Suction Valve Spring ..... 5-27
5.5.4.8 Attentions for Attaching the Valve Plate .................................................... 5-27
5.5.4.9 Removal of the Spacer (4M/6M/8M/62M).................................................. 5-27
5.5.4.10 Removal of Knob Bolt (62M-FM）.............................................................. 5-28
5.5.5 Unloader .............................................................................................................. 5-29
5.5.5.1 Attentions for Attaching the Unloader Push Rod Washer.......................... 5-30
5.5.5.2 Attentions for Attaching the Unloader Push Rod Assembly ...................... 5-30
5.5.5.3 Attentions for Attaching the Solenoid Valve Unloader Cover Integrated... 5-31

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5.5.6 Seal Cover/Mechanical Seal/Oil Seal.................................................................. 5-32
5.5.6.1 Attentions for Removing the Seal Cover Assembly................................... 5-33
5.5.6.2 Attentions for Removing the Oil Seal Retainers........................................ 5-33
5.5.6.3 Attentions for Removing the Oil Seal ........................................................ 5-33
5.5.6.4 Attentions for Attaching the Oil Seal.......................................................... 5-33
5.5.6.5 Attentions for Attaching the Mechanical Seal Collar ................................. 5-34
5.5.6.6 Attentions for Attaching the Seal Cover Assembly .................................... 5-34
5.5.7 Main Bearing Head Assembly/Oil Pump Assembly/Oil Filter Assembly.............. 5-35
5.5.7.1 Attentions for Removing the Main Bearing Head Assembly...................... 5-36
5.5.7.2 Attentions for Attaching the Main Bearing Head Gasket ........................... 5-36
5.5.7.3 Attentions for Attaching the Main Bearing Head Assembly ....................... 5-36
5.5.8 Crankshaft............................................................................................................ 5-37
5.5.8.1 Attentions for Removing the Crankshaft.................................................... 5-38
5.5.8.2 Attentions for Attaching the Thrust Roller Bearing (Shaft Side) ................ 5-39
5.5.8.3 Attentions for Attaching the Crankshaft ..................................................... 5-40
5.5.9 Bearing Head....................................................................................................... 5-41
5.5.9.1 Attentions for Removing the Bearing Head (4M/6M/8M/62M) .................. 5-42
5.5.9.2 Attentions for Replacing the Main Bushing (Bearing Head Side) ............. 5-42
5.5.9.3 Attentions for Attaching the Thrust Roller Bearing (Bearing Head Side)... 5-42
5.5.9.4 Attentions for Attaching the Bearing Head (4M/6M/8M/62M).................... 5-43
5.5.10Discharge Valve Cage Assembly ........................................................................ 5-44
5.5.10.1 Attentions for Attaching the Discharge Valve Spring ................................. 5-44
5.5.11Piston Assembly .................................................................................................. 5-45
5.5.11.1 Attentions for Attaching the Connecting Rod Bushing/Needle Bearing .... 5-46
5.5.11.2 Attentions for Attaching the Piston Rings .................................................. 5-46
5.5.12Cylinder Sleeve Assembly ................................................................................... 5-47
5.5.12.1 Attentions for Attaching the Cam Ring ...................................................... 5-47
5.5.13Seal Cover Assembly .......................................................................................... 5-48
5.5.13.1 Attentions for Removing the Shower Flushing Sleeve .............................. 5-48
5.5.13.2 Attentions for Attaching the Mechanical Seal Mating Ring........................ 5-49
5.5.13.3 Attentions for Attaching the Shower Flushing Sleeve ............................... 5-49
5.5.14Main Bearing Head Assembly ............................................................................. 5-50
5.5.14.1 Attentions for Replacing the Main Bushing (Pump Side) .......................... 5-50
5.5.14.2 Attentions for Attaching the Thrust Washer (Pump Side).......................... 5-50
5.5.15Oil Filter Assembly............................................................................................... 5-51
6 Troubleshooting
6.1 Troubleshooting Table ................................................................................6-1
7 Related Document
7.1 Development View and Configuration Table of the Parts ........................7-1
7.2 List of Tightening Torques for Bolts and Nuts........................................7-12
7.3 List of Tools for Disassembly...................................................................7-13

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7.4 Vibration and Sound Data .........................................................................7-15
7.4.1 Vibration............................................................................................................... 7-15
7.4.2 Sound Data.......................................................................................................... 7-16
7.5 Oil Cooler Heat Rejection (OHR)/
Head Jacket Heat Rejection (JHR) (N4M, N6M, N8M) .............................7-17
7.6 Starting Torque ..........................................................................................7-27
7.7 Parts Inspection and Replacement Standards........................................7-31

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2202G1JE-DA-M-N_2010.01.
1 Safety
Reciprocating Compressor M Series 1.1 Observation/Prevention
1-1
1 Safety
1.1 Observation/Prevention
1.1.1 Observance (Do's)
1.1.1.1 Do's on Operation
Attach safety and protection devices into compressors operation sequence.
Regularly inspect the safety and protective devices function properly.
If safety and protective devices do not work properly or the machine continues to run even during test
of these devices, stop the operation! Inform your supervisor of it immediately.
If the compressor stops for unknown reasons, immediately inform your supervisor of it. Obtain his/her
approval before restarting the compressor.
Some refrigerants in use generate bad smell or toxic gases, or may cause deficiency of oxygen. Make
sure to ventilate the air during operation.
The properties of refrigerant and refrigerant oil can be corrosive, decomposable, and/or toxic, insure to
obtain the Material Safety Data Sheet (MSDS) and follow its instructions.
When stopping the operation of this compressor, turn "OFF" the motor (main power), heater power,
and control power. Close the suction and discharge side shut-off valves. Follow proper compressor
evacuation procedures.
1.1.1.2 Do's on Maintenance
Before performing the work together with at least one other person, thoroughly confirm the work
details and acknowledge other worker's movement.
Always turn OFF and lock out/tag out the motor (main power), control power, and other devices before
troubleshooting during operation, and before setup, cleaning, or maintenance and inspection of the
compressor.
Always lock out/tag out the fluid supply/stop valve and the valves at downstream or upstream side of
an opening part before troubleshooting during operation, setup, cleaning, or maintenance and
inspection of the compressor to prevent the valves from opening during work.
Some refrigerants in use generate bad smell or toxic gases, or may cause deficiency of oxygen. Make
sure to ventilate the air during work.
The properties of refrigerant and refrigerant oil can be corrosiveness, decomposability, and/or toxicity,
insure to obtain the Material Safety Data Sheet (MSDS) and follow its instructions.
After using tools always restore to designated place and never leave tools in the compressor.
1.1.1.3 Do's on Lockout/Tagout after Shutting off the Power
Prepare lockout/tagout devices for the main breakers of motor main power and control power.
Performing lockout/tagout after shutting off the power is very effective for preventing mis-operation of
the worker, and for preventing injury of all workers that are working in the power facility and on the
compressor.
If there are any possibilities of danger during works (especially during cleaning, maintenance and
inspection, and troubleshooting), turn "OFF" the motor main power and control power, and perform
lockout/tagout.
The worker himself must always lock out/tag out the compressor before working in the compressor for
troubleshooting during operation, setup, cleaning, or maintenance and inspection of the compressor.
The worker who performed lockout/tagout should release them after checking that all procedures have
completed.

2202G1JE-DA-M-N_2010.01.
1 Safety
Reciprocating Compressor M Series 1.1 Observation/Prevention
1-2
1.1.1.4 Do's about Personal Protective Devices
Prepare and use protective devices complying with the safety standards of the regulations.
Check the function of each protective device before using.
Wear designated clothes such as work outfits.
Do not wear any neckties or jewelry as there is a possibility of being entangled by a movable part or
rotating part. Put on a helmet as your hair may get entangled.
Do not have anything in your pocket to prevent objects from falling into the machine.
1.1.1.5 Do's about Handling of Hazardous and Toxic Substances
Obtain Material Safety Data Sheet (MSDS) from manufacturers of hazardous and toxic substances.
Check the MSDS and follow the handling instructions recommended by the manufacturers to handle
and store those substances.
An example of Material Safety Data Sheet (MSDS) is provided as a reference at the end of this
chapter.
1.1.1.6 Do's about Handling Emergency Situation
Formulate an emergency action plan complying with the regulations, and post it on a safe place.
1.1.1.7 Do's about Waste Oil, Fluid, and Materials
Disposing of refrigerant and oil used for the compressor are subject to a number of regulations for the
environmental protection purposes. Follow the local, state, federal acts and regulations and your
company's rules when disposing of such waste oil, fluid and materials.
1.1.1.8 Other Do's
Keep the floor clean around the refrigerating, cold storage, and air conditioning systems, and keep
passages and walkways clear.
Walk only on the areas set up as a work floor. Also, do not leave tools and cleaning solutions in that
area.
If water or oil is spilled on the compressor or the floor, immediately wipe it off to prevent workers
from injury caused by slipping.
1.1.2 Don'ts
Do not remove or relocate any safety device, including electrical interfaces.
Do not disable any safety device by short-circuiting or bypassing without any permission.
Do not leave the compressor unsafe and unattended, by removing a safety cover or some other
measures.
Do not touch, clean, or lubricate any moving part of the compressor during operation.
Do not touch, clean, or lubricate the compressor during its operation.
Do not touch relays or electric systems such as terminal block with bare hands when turning on the
power.