Quantcast Setting the Needle Bar at the Correct Height

Share on Google+Share on FacebookShare on LinkedInShare on TwitterShare on DiggShare on Stumble Upon
Custom Search
 
  
as it will go. Using a screwdriver, remove the two screws holding the needle plate (N) to the bed of the machine. Remove presser foot (P) from the presser bar and lift the needle plate off the bed. Now the feed dog becomes exposed. Loosen the two screws that attach the feed dog to its carrier, and remove the feed dog. Proceeding in reverse order, first install the special rope-sewing feed dog on the feed dog carrier,    making certain that the two screws are tightened well. Next, put in place the special (throat) needle plate, and then the special presser foot, tightening all their screws securely, and close the slide plate. Adjust the stitch length and the width of zigzag to suit the rope to be sewn. Setting the Needle Bar at the Correct Height Before adjusting the height of the needle bar, make sure that the needle is pushed up into the needle bar as far as it will go. Now, remove the faceplate from the machine. Set the zigzag control knob for straight sewing and turn the handwheel toward you until the needle reaches the lowest point of its downward stroke. See that the needle enters the needle slot in the throat (needle) plate at the very center. When the needle is centered, proceed in the following manner: Remove the slide plate, needle (throat) plate and feed dog. Continue turning the hand- wheel toward you until the needle bar has risen approximately 3/32 inch above its lowest position. The point of the sewing hook should now be at the center of the needle at a distance approximately 3/32 inch above the eye. If adjustment should be required, loosen the setscrew (B of fig. 9-48) in the needle bar connecting stud to raise or lower the needle bar as may be necessary. Be sure to tighten the setscrew after making this adjustment. Centering the Needle in the Throat (Needle) Plate If the needle needs centering within the needle slot in the needle (throat) plate, set 239.457 Figure 9-48.-Setting needle bar. the machine for straight sewing and turn the handwheel toward you until the needle bar reaches the lowest point of its downward stroke. Loosen setscrew (C of fig. 9-48) and turn eccentric stud (A of fig. 9-48) until the needle is centered correctly. Retighten setscrew (C). Set the zigzag knob to the widest stitch position and turn the handwheel toward you. Observe the passage of the needle through the needle (throat) plate. It should pass at about an equal distance from either end of the needle slot when making the left and right zigzag stitch. If necessary, readjust the eccentric stud (A of fig. 9-48) as described before. Timing the Sewing Hook Remove the presser foot, slide plate, throat (needle) plate and bobbin case. Also remove the feed dog. With anew needle in the machine, turn the handwheel toward you until the needle bar reaches its lowest point. Continue turning and allow the needle bar to rise about 3/32 inch while on its upward stroke. With needle bar in this 9-37



Aviation News
Airbus Americas seeking next group of Liaison Engineers for Mobile Assembly Line
• Liaison Systems Engineer-Powerplant & Mechanical• Liaison Systems Engineer-Cabin... Share...
airbus.com
IAG converts eight A330-200 options into firm orders
Iberia to become new operator of the efficient A330-200 Share...
airbus.com
Georgia ANSP Signs Follow-on Contracts with Comsoft
[Avionics Today 09-22-2014] Sakaeronavigatsia, Georgia’s national Air Navigation Service Provider...
aviationtoday.com
Staying on the Radar: Nav Canada and Aireon Plan to Track and Locate Distressed Aircraft
A diagram of Aireon’s global space-based ADS-B coverage. Photo: Aireon...
aviationtoday.com
UTC Aerospace Opens New Facility to Develop SWIR Technology
UTC Aerospace executives inaugurate the new facility with a ribbon-cutting...
aviationtoday.com
A350 XWB takes centre stage at Istanbul airshow 2014
Airbus products support the fast growing Turkish market Share this...
airbus.com
Northrop Grumman Introduces Sapphire for ATC Communications
Sapphire for ATC Communications. Photo: Northrop Grumman [Avionics Today 09-19-2014]...
aviationtoday.com
Navy’s Triton UAS Completes Cross-Country Test Flight
[Avionics Today 09-19-2014] The MQ-4C Triton Unmanned Aircraft System (UAS)...
aviationtoday.com
Much Remains to be Seen: The Future of NextGen
Michael Whitaker, deputy administrator and chief NextGen officer at the...
aviationtoday.com
easyJet orders 27 more A320 aircraft
A320 Family delivers the best operating costs and passenger comfort...
airbus.com
Embraer Selects Rockwell Collins for Flight Simulator
Embraer's Super Tucano Aircraft. Photo: Wikipedia [Avionics Today 09-18-2014]  Embraer...
aviationtoday.com
FAA Streamlines Aircraft Certification Process
September 17As part of the Federal Aviation Administrations (FAA) ongoing...
faa.gov
NextGen Keeps Operations Running Smoothly at Ft. Lauderdale
A sophisticated NextGen software tool called Time-Based Flow Management (TBFM)...
faa.gov
NextGen Keeps Operations Running Smoothly at Ft. Lauderdale
A sophisticated NextGen software tool called Time-Based Flow Management (TBFM)...
faa.gov
Swiss International Air Lines orders up to 25 A320neo
Successful A320 operations expand with eco-efficient NEOs Share this Read...
airbus.com
Lufthansa Group orders 10 A320ceo aircraft for Eurowings
Eurowings to become new A320 operator Share this Read more...
airbus.com
Qatar Airways flies into a new era of travel with delivery of its first A380
World’s flagship aircraft takes Gulf airline to new heights with...
airbus.com
National Aerospace Week Partners with Congress to Garner Attention to the Industry
[Aviation Today 09-17-14] Already underway, this year’s Congress-backed National Aerospace...
aviationtoday.com
National Aerospace Week Partners with Congress to Garner National Attention to the Industry
[Aviation Today 09-17-14] Already underway, this year’s Congress-backed National Aerospace...
aviationtoday.com
Airbus launches new pivoting overhead carry-on stowage bins for A320 Family with order from Delta Air Lines
A320 Family non-stop cabin innovation: offering passengers the greatest overhead...
airbus.com


Privacy Statement - Copyright Information. - Contact Us

comments powered by Disqus

Integrated Publishing, Inc.
9438 US Hwy 19N #311 Port Richey, FL 34668

Phone For Parts Inquiries: (727) 755-3260
Google +