Manuals / Motorola / Household Appliance / Sewing Machine

Motorola LH4-B800E, HE-8000 I Thread take-up spring tension, Thread take-up spring height

Models: LH4-B800E HE-8000 HE-8000 I

1 100

Download 100 pages 58.84 Kb

Page 69

7. CORRECT USE

Thread take-up spring tension

Turn the thread tension stud (1) to adjust the thread take-up spring tension to between approximately 0.10 - 0.20 N in accordance with the material to be sewn.

Thread take-up spring height

Loosen the set screw (2), and turn the entire thread tension adjuster to adjust the thread take-up spring height to between 4 - 6 mm in accordance with the material to be sewn.

Thread take-up spring tension

Thread take-up spring height

		4 – 6 mm
Weaker
Stronger	(1)			(2)
Stronger	(1)
2149Q					2150Q
2149Q					2150Q

Reference thread tension

Stitch patterns	Whip stitch		Purl stitch
Upper thread	Polyester #50	Spun #60	Polyester #50	Spun #60
Lower thread	Polyester #50	Spun #60	Polyester #50	Spun #60
Upper thread tension	0.30 - 0.70 N	0.50 - 0.85 N	0.75 – 2.00 N	1.00 – 2.20 N
Lower thread tension	0.15 - 0.25 N		0.05 - 0.15 N
Thread take-up spring tension		0.10 - 0.20 N
Thread take-up spring height		4 - 6 mm

2151Q

Upper thread tension for whip stitches (with zigzag tension open)

When using a program that has whip stitches set, press the RESET key to lower the work clamp, and then take the measurement shown in the illustration.

Upper thread tension for purl stitches (with zigzag tension closed)

When using a program that has purl stitches set, press the RESET key to lower the work clamp, and then take the measurement shown in the illustration.

2152Q

62

HE-8000

Image 69

Motorola LH4-B800E, HE-8000 I Thread take-up spring tension, Thread take-up spring height, Reference thread tension

Contents

LH4-B800E HE-8000 Safety Instructions Environmental requirements Sewing Moving parts may cause injury Contents Changing Functions Using Name of Each Part Safety devicesSpecifications SubclassHE-8000 Standard sewing pattern list Special needle plate Optional PartsLeg parts Standing operation pedalTape guard RulerAuxiliary table Programmer Replacement parts set for 70 mm buttonhole lengthPower table InstallationVertical positioning Installing the flange nut Installing the motorInstalling the control box Installing the bed base Installing the power switchInstalling the head rest Installing the machine headInstalling the operation panel Connecting the cords Connecting the ground wireConnecting the machine head harness Connect the connectors of the feed motor harness Connecting the motor harnessConnecting the power cord Connecting the standing pedal harness option Installing the transformer Floor installationTable leg installation treadle support plates Connecting the cords Installation underneath the work tableInstalling the V-belt Installing the belt cover plate Adjusting the belt retainerAdjusting the finger protector Adjusting the treadle pressure Installing the treadleAdjusting the treadle return pressure Adjusting the treadle strokeInstalling the spool stand Installing the eye guard Lubricating the bed base LubricationRotary hook lubrication adjustment Lubricating the armLubricating the rotary hook Installing the belt cover Part names and functions OperationManual mode indicator Test feed mode indicatorProgram mode indicator Select keyBefore starting home position return Home position return preparationOperating the treadle Operating the standing pedal option Two pedals + kick pedalThree pedals Program setting method Program initialization conditionParameter table Setting items Setting range Unit Default Zigzag width 3.0 mm Setting items Setting range Unit Default Front tack pitch except radial 05 1.00 mm Setting items Setting range Unit No. of stitches in X direction for saw-shaped rear Start backtack width 3.0 mm Saw-shaped underlays Saw-shaped underlay bar tack X stitch no Stitches Rear bar tack tension release timing Stitches Changing program details Bar tacking stitches being cut by the knife 13 17 2118Q 2123Q Triangle Rear tack vector shape programsRectangle Saw-shapeUnderlays sewn together Underlay programsSaw-shape underlay Rectangle underlayCenter knife standard Rear knife Cutter operationCycle program Changing the production counter Changing the lower thread counter setting value Adding patterns created using the BAS-PC/300 Using the program memosProgram memo contents Adding patterns to a P-ROM→ 1 → 2 → 3 →….. → 90→ P1 → P2 → …… → P9 → 1 → 2 → …… Checking the Sewing Pattern 2136Q Correct USE Installing the needleThreading the thread at the sewing start position Threading the upper threadWinding the lower thread Adjusting the bobbin winding amountStitch patterns Threading the bobbin caseWhip stitch plain stitch Purl stitch seal stitchThread tension Thread take-up spring tension Thread take-up spring heightReference thread tension Sewing SewingTo finish sewing in this condition If the emergency stop switch is pressed during sewingEmergency stop If the thread breaks during sewingTo continue sewing from around the location of the breakage Thread breakage before sewing is finishedLower thread counter When resuming sewing in test feed mode or manual modeCleaning MaintenanceCleaning the control box air inlet port Cleaning the eye guardDraining the oil Checking the needle Cleaning the length feed plateNeedle bar height Standard AdjustmentsAdjusting the clearance between needle and hook point Needle and hook timing adjustmentAdjusting the knife installation Adjusting the work clamp pressureAdjusting the upper thread trimming Adjusting the upper thread scissors opening timing Gradual opening timing adjustmentScissors fully opening timing adjustment Adjusting the lower thread clamp timing Adjusting the bobbin presserAdjusting the needle up stop position Changing Functions Using the Memory Switches Memory switch table Program Initialization Settings which are initializedInitializing all programs Initializing a single programPanel DIP switches Changing Functions Using the DIP SwitchesDipswa Panel DIP switch tableControl circuit board DIP switches DIP switch inside the control box table Needle plate Gauge Parts ListFor flat cutter Work clamp assy, W/F-G Finger guard Gauge Parts List Cutter Error Code Table Like to keep the program which exceeds the area Troubleshooting TroubleshootingCause Needle is incorrectly installed 15-1, Naeshiro-cho, Mizuho-ku, Nagoya 467-8561, Japan. Phone