Singer 6160 Manuale utente

Service Manual

6160

6180

104 73 11-26

26 Oct 2010

Service Manual

Page

2/27

MODEL 6180 / 6160

Contents

SEC.01 Disassembling of outer covers

*SEC.02 Positions described in this manual

SEC.03 Needle height

SEC.04 Timing of needle and shuttle hook

SEC.05 Needle clearance

SEC.06 Adjustment of shuttle race position

SEC.07 Needle side motion (Left-right position)

SEC.08 Timing of needle and feed dog

SEC.09 Feed dog position

SEC.10 Feed dog height

SEC.11 Needle threader height

SEC.12 Presser foot height

SEC.13 Adjustment of thread tension

SEC.14 Origin point positioning of motor

SEC.15 Circuit board

SEC.16 Wiring diagram

Service Manual

Page

3/27

MODEL 6180 / 6160

SEC.01 Disassembling of outer covers

Remove screw at the face cover shown in the picture below.

Remove screws at the rear cover shown in the picture below.

Remove screws at the bottom shown in the picture below.

Remove face cover.

Remove front cover and rear cover

Service Manual

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MODEL 6180 / 6160

Remove spring plate at the shuttle race cover.

Then remove shuttle race cover.

Remove thread guide pin.

Previous shape (left), Current shape (right)

Service Manual

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MODEL 6180 / 6160

Remove front cover by screwdriver as shown on picture below.

Machine with front cover removed

Then remove rear cover

Service Manual

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6/27

MODEL 6180 / 6160

*SEC.02 Positions described in this manual

SEC.02,

SEC.06

SEC.10

SEC.09

SEC.07-2

SEC.04

SEC.10

SEC.02

SEC.06

SEC.05

SEC.10

SEC.13

Service Manual

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MODEL 6180 / 6160

SEC.03

SEC.08

SEC.04

SEC.12

SEC.13

Service Manual

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MODEL 6180 / 6160

SEC. 03 Needle height

Procedure of how to check and adjust needle height is described in this

section.

(Checking)

Distance between needle plate and tip of needle should be 14.5 mm ± 0.2 mm,

when needle is at its highest position under specification of design. If it is

unable to measure needle height, follow the simple method below.

Set needle to its lowest position, while it is set at center position. Check to see if

the needle tip is located about 0.5 to1.0 mm deeper than shuttle hook point as

shown below.

(Adjustment)

Set needle bar to its lowest position and loosen screw at needle bar clamp

through adjustment hole at needle bar support. Slide needle bar to adjust

needle height. Tighten the screw after adjustment.

Service Manual

Page

9/27

MODEL 6180 / 6160

SEC.04 Timing of needle and shuttle hook

Procedure of how to check and adjust timing of needle and shuttle hook is

described in this section. Check needle height beforehand.

(Checking)

Select zigzag stitch and set stitch width at maximum.

Turning hand wheel slowly, bring up needle from its right hand and lowest point,

until shuttle hook point comes to align with left side of needle. Check to see if

hook point is 0.5mm to 1.0mm above the upper edge of needle eye as shown

below. (This is simple checking method without gauge.)

(Adjustment)

Loosen screw A at the lower shaft rocker as shown above and turn hand wheel

in either direction to adjust timing of shuttle hook and needle while holding

shuttle hook as shown above.

0.5-1.0mm

Service Manual

Page

10/27

MODEL 6180 / 6160

SEC.05 Needle clearance

Procedure of how to check and adjust needle clearance is described in this

section.

(Checking)

Check to see if the clearance between needle and shuttle hook point is 0 to

0.15 mm when needle and shuttle hook point are overlapped. Check the

clearance by pushing needle tip by small screw driver.

(Adjustment)

Loosen screw Afixing shaft linked with support bracket

Slide needle bar support in either direction as shown above.

1. To decrease the clearance;

Slide needle bar support toward direction of arrow 1 as shown above.

2. To increase the clearance (if needle hits the shuttle hook);

Slide needle bar support toward direction of arrow 2 as shown above.

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