Brother BAS-311F-L, BAS-326F-0, BAS-311F-0 Replacing the bobbin case and threading the thread

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5. INSTALLATION

5-5. Replacing the bobbin case and threading the thread

CAUTION

If the power switch needs to be left on when carrying out replacing the bobbin, be extremely careful to observe all safety precautions.

The machine may operate if the foot switch is depressed by mistake, which could result in injury. (ex. Continuing sewing from a stopping point)

	(3)	(2)	30 mm
		(4)

(1)

1201S

0110Q

1202S

1.Pull the shuttle race cover (1) forward and then open the cover.

2.Lift the bobbin case latch and remove the bobbin case.

3.Insert a new bobbin into the bobbin case, and then pass the thread through the slot (2) and pull it out from the thread hole (3). Check that the bobbin turns in the direction of the arrow when the thread is pulled at this time.

4.Pass the thread through the lever thread hole (4), and then pull out approximately 30 mm of thread.

5-6. Sewing conditions and thread tension

5-6-1. Sewing conditions

		BAS-311F-0, 326F-0		BAS-311F-0	BAS-311F-L

	Specifications	For heavy materials	For medium	For extra heavy	For heavy materials
	Specifications	For heavy materials	materials	materials	(denim)
			materials	materials	(denim)
	Upper thread	# 20 or equivalent	# 50 or equivalent	# 4 or equivalent	# 20 or equivalent
	Upper thread	# 20 or equivalent	# 50 or equivalent	# 4 or equivalent	(cotton)
					(cotton)
	Lower thread	# 20 or equivalent	# 60 or equivalent	# 4 or equivalent	# 20 or equivalent
	Lower thread	# 20 or equivalent	# 60 or equivalent	# 4 or equivalent	(cotton)
					(cotton)
	Upper thread	1.4 - 1.8	1.0 - 1.3	4.5 - 5.0	1.4 - 1.8
	Tension (N)	1.4 - 1.8	1.0 - 1.3	4.5 - 5.0	1.4 - 1.8
	Tension (N)
	Lower thread	0.2 - 0.3		1.0 - 1.2	0.3 - 0.4
	Tension (N)	0.2 - 0.3		1.0 - 1.2	0.3 - 0.4
	Tension (N)
	Thread take-up	6 - 8		0	6 - 8 mm
	spring height (mm)	6 - 8		0	6 - 8 mm
	spring height (mm)
	Thread take-up	0.4 - 0.6	0.15 - 0.35	-	0.4 - 0.6
	spring tension (N)	0.4 - 0.6	0.15 - 0.35	-	0.4 - 0.6
	spring tension (N)
	Pre-tension (N)	0.3 - 0.5	0.1 - 0.3	0.3 - 0.5	0.2 - 0.4

	Needle	DP X 17 # 21	DP X 5 # 16	DP 17 # 25	DP X 17 # 19

	Normal sewing	2000 rpm	2000 rpm	1300 rpm	2000 rpm
	speed	2000 rpm	2000 rpm	1300 rpm	2000 rpm
	speed

The sewing conditions given in the above table may need to be changed depending on the article being sewn.

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BAS-311F-0, 311F-L, 326F-0

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Contents BAS-326F-0 Safety indications and their meanings Safety InstructionsEnvironmental requirements InstallationSewing CleaningMaintenace and inspection Direction of operation Frame side cover Contents Changing Special Functions Name of Major Parts BAS-311F-L *3 a BAS-326F-0 *4 a SpecificationsInstallation Positioning Table processing diagramInstalling the control box Installing the oil pan Installing the rubber cushionsInstalling the switching plate Installing the cushionsInstalling the machine head Tilting the sewing machine head 1170S Connecting the cords Installing the operation panel Connecting the ground wireBAS-311F-0 Solenoid type only ORG Installing the foot switch Installing the belt coverInstalling the spool stand Installing the eye guard Installing the programmer option Installing the X feed base cover BAS-311F-L, 326F-0 Installing the feed base cover supports BAS-311F-L, 326F-0Connecting the tubes pneumatic type only When installing to a beam When installing to the underside of the work tableLubrication points LubricationBAS-326F-0 Correct Operation Installing the needleSelecting the needle and thread Threading the upper thread Winding the lower thread Sewing conditions and thread tension Replacing the bobbin case and threading the threadLower thread tension Explanation of panel Using the Operation Panel110 Compatible types of floppy disk Using the floppy diskHow to use the cleaning disk Setting the floppy diskTo Read a pattern to memory Using the program R/W Read/Write switchIf an error message is displayed Clearing the errorResuming operation from a stopping poing Using the Test switch Checking the sewing patternContinuing sewing from a stopping point Using the emergency stop switchChanging the X-SCALE and Y-SCALE settings Adjusting the sewing Speed controlUsing the bobbin thread counter Using production counter Using single split mode Shifting a stitch pattern Before starting sewing SewingSewing operation 1230S Draining the oil Cleaning and InspectionCleaning the rotary hook LubricationChecking the needle Cleaning the control box air inlet portCleaning the air holes of belt cover and frame side cover Cleaning the eye guardAdjusting the needle bar height Standard AdjustmentsAdjusting the needle bar lift amount Adjusting the driver needle guard Adjusting the needle clearanceAdjusting the shuttle race thread guide Adjusting the movable knife Abcd Replacing the movable and fixed knivesAdjusting the presser foot Standard presser foot lift is 3 mm max mm Adjusting presser foot lift to 3 5mmAdjusting presser foot lift to 5 8 mm Changing the presser foot liftFor vertical wiper standard Adjusting the wiperBAS-311F-0 Solenoid type Adjusting the two-step work clamp lift amountBAS-326F-0 Adjusting the needle up stop position Checking the input sensor and DIP switch input Checking the input voltage Clearing all memory settingsPanel DIP switch functions DIP SwitchBAS-311F-L only DipswitchDIP Switch C DIP switches inside the control boxDipswitch Changing Special Functions and Using the Memory Switches If memo-0E is ON, the work clamp opens and closes twice Switch No When on Memo-10 Main circuit board instead of the voltage Switch No Possible Units Error Codes Can not backup data. Control PCB Turn off power and check connector P20 Gauge Parts List According to Subclasses Bobbin case assy S59221-001 LC Troubleshooting Incorrect needle and rotary hook timing Adjust the needle bar lift Amount Adjust the position Head position switch cord connection WP stitch device Automatic bobbin changer OptionsPlay prevention work clamp 15-1, Naeshiro-cho, Mizuho-ku, Nagoya 467-8561, Japan. Phone