JUKI DDL-8700 Instruction Manual

ENGLISH

DDL-8700

Instruction Manual

	CONTENTS
1.	SPECIFICATIONS.......................................................................................................	1
2.	INSTALLATION...........................................................................................................	1
3.	INSTALLING THE BELT COVER AND THE BOBBIN WINDER................................	2
4.	ADJUSTING THE HEIGHT OF THE KNEE LIFTER...................................................	2
5.	INSTALLING THE THREAD STAND..........................................................................	3
6.	LUBRICATION.............................................................................................................	3
7.	ADJUSTING THE AMOUNT OF OIL (OIL SPLASHES) IN THE HOOK....................	4
8.	ATTACHING THE NEEDLE........................................................................................	5
9.	SETTING THE BOBBIN INTO THE BOBBIN CASE..................................................	5
10.	ADJUSTING THE STITCH LENGTH...........................................................................	5
11.	PRESSER FOOT PRESSURE....................................................................................	6
12.	HAND LIFTER.............................................................................................................	6
13.	ADJUSTING THE HEIGHT OF THE PRESSER BAR.................................................	6
14.	THREADING THE MACHINE HEAD...........................................................................	7
15.	THREAD TENSION.....................................................................................................	8
16.	THREAD TAKE-UP SPRING.......................................................................................	8
17.	ADJUSTING THE THREAD TAKE-UP STROKE.......................................................	8
18.	NEEDLE-TO-HOOK RELATIONSHIP.........................................................................	9
19.	HEIGHT OF THE FEED DOG......................................................................................	9
20.	TILT OF THE FEED DOG..........................................................................................	10
21.	ADJUSTING THE FEED TIMING..............................................................................	10
22.	ADJUSTING THE FEED TIMING (DDL-8700L)........................................................	11
23.	MOTOR PULLEYS AND BELTS...............................................................................	12

1. SPECIFICATIONS

	DDL-8700			DDL-8700A	DDL-8700H
Application	General fabrics, light-weight			General fabris, light-weight	Medium-weight materials,
	and medium-weight materials			materials	heavy-weight materials
Sewing speed	Max. 5,500 sti/min			Max. 4,000 sti/min	Max. 4,000 sti/min
Stitch length	Max. 5 mm			Max. 4 mm	Max. 5 mm
Needle	DB x 1 #9 to #18 (134 #65 to #110)			DAx 1 #9 to #11 (134 #65 to #75)	DB x 1 #20 to #23 (134 #125 to #160)
Presser foot lift (by knee lifter)	10 mm (Standard) 13 mm (Max.)			9 mm (Max.)	10 mm (Standard) 13 mm (Max.)
Lubricating oil				JUKI New Defrix Oil No. 1
Noise	- Equivalent continuous emission sound pressure level (LpA) at the workstation :
	A-weighted value of 83.5 dB; (Includes KpA = 2.5 dB); according to ISO 10821- C.6.2 -ISO 11204
	GR2 at 5,000 sti/min.
	- Sound power level (LWA) ;
	A-weighted value of 88.0 dB; (Includes KWA = 2.5 dB); according to ISO 10821- C.6.2 -ISO 3744
	GR2 at 5,000 sti/min.
				DDL-8700L
Application				For heavy-weight materials
Sewing speed	3,000 sti/min		Max. 4,000 sti/min (for feed pitch of 5 mm or less)
			Max. 3,200 sti/min (for feed pitch of 5 mm or more)
Stitch length				Max. 7 mm
Needle		DB x 1 #20 to #23 (DP x 5 #16 to #18)
Presser foot lift (by knee lifter)				13 mm (Max.)
Lubricating oil				JUKI New Defrix Oil No. 1

- Equivalent continuous emission sound pressure level (LpA) at the workstation :

Noise A-weighted value of 83.5 dB; (Includes KpA = 2.5 dB); according to ISO 10821- C.6.2 -ISO 11204 GR2 at 5,000 sti/min.

-Sound power level (LWA) ;

A-weighted value of 88.0 dB; (Includes KWA = 2.5 dB); according to ISO 10821- C.6.2 -ISO 3744 GR2 at 5,000 sti/min.

2. INSTALLATION

					3
			3		3
3	3
1	1
					4
				3
						1

14

22.5 mm			18.5 mm

2	3
A	B

(1)Installing the under cover

1)The under cover should rest on the four corners of the machine table groove.

2)Two rubber seats 1 for supporting the head portion on the operator side A are fixed on the extended portion of the table by hitting the nail 2 , and the other two rubber cushion seats 3 on the hinge side

B are fixed by using a rubber-based adhesive. Then, oil pan 4 is placed.

3)Fit hinge 1 into the opening in the machine bed, and fit the machine head to table rubber hinge 2 before placing the machine head on cushions 3 on the four corners.

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3. INSTALLING THE BELT COVER AND THE BOBBIN WINDER

	WARNING :
	To protect against possible personal injury due to abrupt start of the machine, be sure to start the
	following work after turning the power off and ascertaining that the motor is at rest.
		(mm)			(DDL-8700L)	(mm)
	47
						33
		33				62
		62
						63.5
						75.5

4. ADJUSTING THE HEIGHT OF THE KNEE LIFTER

WARNING :

To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work after turning the power off and ascertaining that the motor is at rest.

1

2

3

1)The standard height of the presser foot lifted using the knee lifter is 10 mm.

2)You can adjust the presser foot lift up to 13 mm using knee lifter adjust screw 1. (Max. 9 mm for A type)

3)When you have adjusted the presser foot lift to over 10 mm, be sure that the bottom end of needle bar

2 in its lowest position does not hit presser foot 3.

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5. INSTALLING THE THREAD STAND

6. LUBRICATION

WARNING :

To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work after turning the power off and ascertaining that the motor is at rest.

(1) Information on lubrication

1) Fill oil pan 1 with JUKI New Defrix Oil No. 1 up to HIGH mark A.

2) When the oil level lowers below LOW mark B, refill the oil pan with the specified oil.

3) When you operate the machine after lubrication, you will see splashing oil through oil sight window

2 if the lubrication is adequate.

4) Note that the amount of the splashing oil is unrelated to the amount of the lubricating oil.

When you first operate your machine after setup or after an extended period of disuse, run your machine at 3,000 sti/min. for about 10 minutes for the purpose of break-in.

A

2

maximum minimum

1

(2) Adjusting the amount of oil supplied to the face plate parts

1) Adjust the amount of oil supplied to the thread take-up and needle bar crank 2 by turning adjust pin 1.

2) The minimum amount of oil is reached when marker dot A is brought close to needle bar crank 2 by turning the adjust pin in direction B.

3) The maximum amount of oil is reached when marker dot A is brought to the position just opposite from the needle bar crank by turning the adjust pin in direction C.

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