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JUKI HZL-F series Service Manual

JUKI HZL-F series
32 pages
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SERVICE Manual
HZl-F Series
COMPuTER SEWInG MaCHInE

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JUKI HZL-F series Specifications

General IconGeneral
Needle ThreaderAutomatic
LightingLED
LCD ScreenYes
TypeComputerized
Bobbin TypeDrop-in
Included Accessoriesbobbins, needles
Automatic Thread CutterYes

Summary

Specifications of HZL-F Series

Power switch

Details about the power switch voltage specifications.

Power consumption

Specifies the power consumption in Watts.

Dimensions and weight

Provides the main unit and case set dimensions and weight.

Revolution control

Details speed control for different stitch types and foot controller usage.

Stop position

Explains how the machine stops after sewing or in case of fault.

Zigzag width

States the maximum zigzag width available.

Amount of feed

Explains how feed amount changes and its default setting.

Pattern selection

Describes pattern selection methods and the LCD display.

Number of patterns that can be selected

Indicates the maximum number of patterns storable.

Number of patterns

Lists the number of patterns for different HZL-F models.

Automatic threading device

Describes the function of the automatic threading device.

Automatic lock stitch

Explains the lock stitch function for different stitch types.

Buttonholing

Mentions auto-return type full automatic buttonholing.

Save and call patterns

Describes pattern saving and recall capabilities.

Helpful messages

Lists various helpful messages displayed by the machine.

Principal parts

Disassembling the machine covers

Top cover

Instructions for removing the top cover.

Face cover

Steps to remove the face cover using setscrews.

Throat plate

Procedure to remove the throat plate by unscrewing it.

Spool cover

Detailed steps for removing the spool cover and related components.

Bottom cover of the free arm

Instructions for removing the bottom cover of the free arm.

Bed cover

Steps to remove the bed cover, including metal plate.

Upper cover of the free arm

Procedure to remove the upper cover of the free arm.

Face plate cover

Instructions for removing the face plate cover.

Front panel

Steps for removing the front panel and its components.

Rear panel

Procedure to remove the rear panel with the presser foot lever raised.

PCB connection diagram

Adjustment

Adjusting the needle bar height

Detailed procedures for adjusting needle bar height with specific values.

Adjusting the needle entry point

Steps to adjust the needle's entry point into the throat plate.

Feed dog height

Procedure for adjusting the height of the feed dogs.

Timing belt

Instructions for adjusting the timing belt tension and position.

Feed timing

Procedure to adjust the timing between the needle and feed dog.

Timing between the needle and the hook

Steps to align needle and hook timing for correct stitch formation.

Clearance between the needle and the blade point of hook

Adjusting the clearance between the needle and hook blade.

Adjusting the balance of the clearances at the right and left needle entry points

Balances clearances for right and left needle positions.

Position of the hook rotation stopper plate

Procedure to set the position of the hook rotation stopper plate.

Adjusting the bobbin thread tension

Instructions for adjusting the bobbin thread tension using a gauge.

Adjusting the thread tension release adjusting plate

Adjusts the thread tension release adjusting plate alignment.

Pretension disk opening amount

Adjusts the pretension disk float for approximately 1 mm opening.

Tension disk opening amount

Adjusts clearance between tension disks to 1 mm.

Base tension opening amount

Adjusts base tension opening amount to 1 mm.

Adjusting the disk opening amount at the time of thread trimming

Adjusts disk opening amounts for thread trimming.

Adjusting the needle thread tension

Procedure to adjust needle thread tension using a tension gauge.

Vertical position of the needle threading hook

Adjusts the vertical position of the needle threading hook.

Adjusting the auxiliary hook height

Adjusts the height of the auxiliary hook.

Adjusting the opening amount of auxiliary hook

Adjusts the opening amount of the auxiliary hook.

Adjusting the presser foot lifting switch

Adjusts the presser foot lifting switch position.

Adjusting the presser bar height

Adjusts the presser bar height and alignment.

Motor belt

Adjusts the motor belt deflection.

Automatic thread trimming

Instructions for changing the thread trimming knife.

Longitudinal feed

Procedure for adjusting the longitudinal feed for darning.

Service mode screen

Explains how to access and navigate the service mode screen.

Service-mode items and descriptions

Lists and describes various service mode items and their functions.

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