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
AgustaWestland Signs Latest AW101 Support Contract with UK MoD
AgustaWestland has signed a contract with the UK Ministry of...
aviationtoday.com
NATO’s AWACS Aircraft to Upgrade Avionics to Meet Mandates
NATO’s Airborne Warning and Control System (AWACS) aircraft. Photo: Rockwell...
aviationtoday.com
NATO Ugrades AWACS Aircraft Avionics to Meet Mandates
NATO’s Airborne Warning and Control System (AWACS) aircraft. Photo: Rockwell...
aviationtoday.com
DARPA Awards Contracts for Tern Naval UAS Project
Tern UAS phase 2 artist rendering. Photo: DARPA [Avionics Today...
aviationtoday.com
RwandAir selects the A330 for fleet growth and modernisation
New Airbus operator with commitment for two A330s Share this...
airbus.com
US Army to Use Ensco Avionics in GBSAA
[Avionics Today 03-24-2015] The U.S. Army will use the Ensco...
aviationtoday.com
IS&S Completes NextGen C-130 FMS Flight Testing
[Avionics Today 03-24-2015] Innovative Solutions & Support (IS&S) completed the...
aviationtoday.com
FAA Streamlines UAS COAs for Section 333
The Federal Aviation Administration has established an interim policy to...
faa.gov
Airbus celebrates delivery of its 9,000th aircraft
A321 for fast-growing Vietnamese carrier VietJetAir Share this Read more...
airbus.com
Textron Preflight EW System Tester Selected for F-35
Textron Systems’ Model 527 radar signal simulator. Photo: Textron [Avionics...
aviationtoday.com
Amazon Gets Experimental Airworthiness Certificate
March 19The Federal Aviation Administration today issued an experimental airworthiness...
faa.gov
Cobham AvComm Introduces New 8800S Digital Radio Test Set
[Avionics Today 3-19-2015] Cobham AvComm has introduced the new 8800S...
aviationtoday.com
Airline 1: supporting a smooth A350 XWB commercial service entry
When the cornerstone member of Airbus’ new-generation A350 XWB Family...
airbus.com
UH-60 Black Hawk Crash, 11 Heroes Lost
At approximately 8:30 p.m. on March 10, 2015, a Louisiana...
aviationtoday.com
VxWorks 653 Selected for Black Hawk Cockpit Upgrade
[Avionics Today 3-18-2015] Northrop Grumman Corp. has selected the Wind...
aviationtoday.com
Airbus Helicopters Delivers Two Upgraded AS532s to French Army Aviation
On Friday, March 13, the French General Directorate for Armament...
aviationtoday.com
French Army Aviation Receives Enhanced Airbus Helicopters AS532 Airframes
Last Friday, the French General Directorate for Armament (DGA) received...
aviationtoday.com
Tintin in ‘la ville Rose’
Airbus & Toulouse airport welcome a Brussels Airlines A320 with...
airbus.com
Vueling takes delivery of its first enhanced comfort A320 cabin featuring the Airbus Space-Flex concept
Airbus Innovations offering flexibility and maximising airline revenues Share this...
airbus.com
Airbus and SIAEC to strengthen collaboration by establishing maintenance training services in Singapore
Signifying Airbus’ latest milestone to become even closer to its...
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 +