Brother BAS-311F-L, BAS-326F-0, BAS-311F-0 Standard Adjustments, Adjusting the needle bar height

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9. STANDARD ADJUSTMENTS

9. STANDARD ADJUSTMENTS

CAUTION

	Maintenance and inspection of the sewing	Hold the machine head with both hands when
	machine should only be carried out by a qualified	tilting it back or returning it to its original position.
	technician.	Furthermore, after tilting back the machine head,
	Ask your Brother dealer or a qualified electrician to	do not push the face plate side or the pulley side
		from above, as this could cause the machine head
	carry out any maintenance and inspection of the
		to topple over, which may result in personal injury
	electrical system.
		or damage to the machine.
	Turn off the power switch and disconnect the
		If the power	switch	needs to be	left	on when
	power cord from the wall outlet at the following
		carrying out	some	adjustment,	be	extremely
	times, otherwise the machine may operate if the
		careful to observe all safety precautions.
	foot switch is depressed by mistake, which could

	result in injury.	If any safety devices have been removed, be
	When carrying out inspection, adjustment and	absolutely sure to re-install them to their original
	maintenance	positions and check that they operate correctly
	When replacing consumable parts such as the	before using the machine.

rotary hook and knife

9-1. Adjusting the needle bar height

(1)

		(2)
a	A	(3)
		(3)
1237S		1238S

Turn the machine pulley to move the needle bar to the lowest position. Then remove the rubber plug (2), loosen the screw (3) and then move the needle bar up or down to adjust so that the second reference line from the bottom of the needle (reference line A) is aligned with the lower edge of the needle bar bush (1).

* If using a DP X 5 needle, use the highest reference line (reference line a).

9-2. Adjusting the needle bar lift amount

(1)

bB

(2)

1239S

1240S

Turn the machine pulley to raise the needle bar from the lowest position until the lowest reference line on the needle (reference line B) is aligned with the lower edge of the needle bar bush (1). Then loosen the screw (2) and move the driver to adjust so that the tip of the rotary hook is aligned with the needle center line.

* If using a DP X 5 needle, use the second reference line from the top of the needle (reference line b).

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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 diskIf an error message is displayed Using the program R/W Read/Write switchClearing the error To Read a pattern to memoryResuming 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 Cleaning the rotary hook Cleaning and InspectionLubrication Draining the oilCleaning the air holes of belt cover and frame side cover Cleaning the control box air inlet portCleaning the eye guard Checking the needleAdjusting 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 Adjusting presser foot lift to 5 8 mm Adjusting presser foot lift to 3 5mmChanging the presser foot lift Standard presser foot lift is 3 mm max mmFor 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