Brother UM 103D manual Troubleshooting, Trouble Cause Remedy

Troubleshooting

This sewing machine is designed for trouble-free operation. However, the following chart indicates trouble which may occur if basic adjustments are not made properly.

Trouble		Cause	Remedy
1. Does not feed	Presser foot pressure too loose		Turn the pressure adjustment screw clock-
			wise to increase the presser foot pressure.
	1.	Needles bent, or needle tip blunt	Replace with new needle.
	2.	Needles incorrectly installed	Install needles correctly.
2. Needles break			(See page 5.)
	3.	Material pulled forcibly	Do not press or pull material too hard when
			sewing.
	1.	Improper threading	Thread correctly.
			(See pages 14~24.)
	2.	Thread tangled	Check spool pin, thread holders, etc. and
			remove tangled thread.
3. Threads break	3. Thread tension too tight		See pages 27~32, “Thread tension”.
	4.	Needles incorrectly installed	Install needles correctly.
			(See page 5.)
	5.	Wrong needle used	Use correct needle
			Schmetz 130/705H – suggested
	1.	Needle bent, or needle tip blunt	Replace with new needle.
	2.	Needle incorrectly installed	Install needle correctly.
			(See page 5.)
4. Skipped stitches	3. Wrong needle used		Use correct needle.
			Schmetz 130/705H – suggested
	4.	Improper threading	Thread correctly.
			(See pages 14~24.)
	5.	Presser foot pressure too loose	Turn the pressure adjustment screw clock-
			wise to increase the presser foot pressure.
5. Stitches are not uni-	Thread tensions are not adjusted		See pages 27~32, “Thread tension”.
form	properly
			Decrease thread tension when sewing light-
	1.	Thread tension too tight	weight or fine material.
6. Fabric is puckered			(See pages 27~32.)
	2.	Improper threading or thread	Thread correctly.
		tangled	(See pages 14~24.)

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CONTENTS	TABLE OF
Chapter 1
Chapter 2
Chapter 3
Chapter 4
Chapter 5
Chapter 6
Chapter 7
Chapter 8
Chapter 9
10	Chapter
11	Chapter
12	Chapter
13	Chapter
14	Chapter
15	Chapter
16	Chapter
17	Chapter
18	Chapter