LBH-1790 - Computer-controlled, High-speed, Lockstitch Buttonholing Machine - Instruction Manual

Oct 24, 2026

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Safety and operating guidance for the LBH-1790 computer-controlled, high-speed lockstitch buttonholing machine. The manual details mandatory precautions before installation and operation, operator training requirements, recommended personal protective equipment, and specific shutdown steps for threading, replacing parts, repairs, and leaving the work area. It also covers handling of oil/grease exposure, prohibitions on tampering with live parts, maintenance responsibilities by qualified personnel, pneumatic air isolation, periodic cleaning, grounding and noise-free operating conditions, and electrical safety checks.

LanguageEnglish

CategoryHealthcare

FormatPDF

Pages65

Reading Time2 h 44 min

AccessFree to download

IMPORTANT SAFETY INSTRUCTIONS

Basic operational safety rules

For your personal protection and emergency steps

R Computer-controlled, High-speed, Lockstitch Buttonholing Machine LBH-1790 INSTRUCTION MANUAL NOTE : Read safety instructions carefully and understand them before using. Retain this Instruction Manual for future reference. E-No.03 40012734 R MARKETING & SALES H.Q. 8-2-1, KOKURYO-CHO, CHOFU-SHI, TOKYO 182-8655, JAPAN PHONE : (81)3-3480-2357 • 2358 FAX : (81)3-3430-4909 • 4914 Copyright C 2003-2006 JUKI CORPORATION All rights reserved throughout the world. Please do not hesitate to contact our distributors or agents in your area for further information when necessary. *The description covered in this instruction manual is subject to change for improvement of the commodity without notice. 06 · 09 Printed in Japan (E) ~~ ~~ IMPORTANT SAFETY INSTRUCTIONS ~~ ~~ Putting sewing systems into operation is prohibited until it has been ascertained that the sewing systems in which these sewing machines will be built into, have conformed with the safety regulations in your country. Technical service for those sewing systems is also prohibited. 1. Observe the basic safety measures, including, but not limited to the following ones, whenever you use the machine. 2. Read all the instructions, including, but not limited to this Instruction Manual before you use the machine. In addition, keep this Instruction Manual so that you may read it at anytime when necessary. 3. Use the machine after it has been ascertained that it conforms with safety rules/standards valid in your country. 4. All safety devices must be in position when the machine is ready for work or in operation. The operation without the specified safety devices is not allowed. 5. This machine shall be operated by appropriately-trained operators. 6. For your personal protection, we recommend that you wear safety glasses. 7. For the following, turn off the power switch or disconnect the power plug of the machine from the receptacle. 7-1 For threading needle(s), looper, spreader etc. and replacing bobbin. 7-2 For replacing part(s) of needle, presser foot, throat plate, looper, spreader, feed dog, needle guard, folder, cloth guide etc. 7-3 For repair work. 7-4 When leaving the working place or when the working place is unattended. 7-5 When using clutch motors without applying brake, it has to be waited until the motor stopped totally. 8. If you should allow oil, grease, etc. used with the machine and devices to come in contact with your eyes or skin or swallow any of such liquid by mistake, immediately wash the contacted areas and consult a medical doctor. 9. Tampering with the live parts and devices, regardless of whether the machine is powered, is prohibited. 10. Repair, remodeling and adjustment works must only be done by appropriately trained technicians or specially skilled personnel. Only spare parts designated by JUKI can be used for repairs. 11. General maintenance and inspection works have to be done by appropriately trained personnel. 12. Repair and maintenance works of electrical components shall be conducted by qualified electric technicians or under the audit and guidance of specially skilled personnel. Whenever you find a failure of any of electrical components, immediately stop the machine. 13. Before making repair and maintenance works on the machine equipped with pneumatic parts such as an air cylinder, the air compressor has to be detached from the machine and the compressed air supply has to be cut off. Existing residual air pressure after disconnecting the air compressor from the machine has to be expelled. Exceptions to this are only adjustments and performance checks done by appropriately trained technicians or specially skilled personnel. 14. Periodically clean the machine throughout the period of use. 15. Grounding the machine is always necessary for the normal operation of the machine. The machine has to be operated inan environment that is free from strong noise sources such as high-fr

FAQs

When is it prohibited to put the sewing systems into operation?

Operation is prohibited until it has been ascertained that the sewing systems built into the relevant country conform to the safety regulations. Technical service for those sewing systems is also prohibited.

What steps should be taken before threading, replacing parts, repairing, or leaving the work area?

Turn off the power switch or disconnect the power plug before threading needle(s), looper and spreader, replacing bobbin, replacing needle-related and feed-related parts, performing repair work, and when leaving the working place or when it is unattended.

Who is allowed to perform repair, remodeling, and maintenance work on the machine?

Repair, remodeling, and adjustment must be done only by appropriately trained technicians or specially skilled personnel. General maintenance and inspection must also be performed by appropriately trained personnel, and electrical component maintenance requires qualified electric technicians or audit/guidance by specially skilled personnel.

Oct 24, 2026

Uploaded by 404brain