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Manuals
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Pfaff Manuals
Sewing Machine
471
Instruction manual
Pfaff 471 Instruction Manual
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Contents
Table of Contents
Bookmarks
Table of Contents
Instruction Manual
Table of Contents
Safety
Directives
General Notes on Safety
Safety Symbols
Important Points for the User
Operating and Specialist Personnel
Operating Personnel
Specialist Personnel
Danger
Proper Use
Specifications
Pfaff 471, 474, 491
Needles and Threads
Possible Models and Subclasses
Disposal of Machine
Transportation, Packing and Storage
Transportation to Customer's Premises
Transportation Inside the Customer's Premises
Disposal of Packing Materials
Storage
Explanation of Symbols
Controls
On/Off Switch on Machines with Mini-Stop Motor
Without Edge Trimmer -725
And Edge Trimmer -725
Button on Machine Head (Only on Machines with -911
Pedal
Lever for Lifting Roller Presser
Knee Lever
Key for Setting Stitch Length
Swing out Roller Presser
Edge Trimmer -725/04 for 471
Edge Trimmer -725/04 for 474 and 491
Edge Trimmer -726/05 for 491
Installation and Commissioning
Installation
Adjusting the Table Height
Fitting the Tilt Lock
Tensioning the V-Belt (Does Not Apply to Machines with Mini-Stop Motor)
Fitting the V-Belt Guard
Fitting the Bottom V-Belt Guard (Does Not Apply to Machines with Mini-Stop Motor)
Fitting the Synchronizer
Fitting the Reel Stand
Switching the Machine On/Off
Commissioning
Setting up
Inserting the Needle on Model 471 and 491
Inserting the Needle on Model 474
Winding the Bobbin Thread; Adjusting the Primary Thread Tension
Removing/Inserting the Bobbin Case
Threading the Bobbin Case/Adjusting the Bobbin Thread Tension
Threading the Needle Thread and Regulating Its Tension on Model 471/491
Threading the Needle Thread and Regulating Its Tension on Model 474
Setting the Stitch Length
Care and Maintenance
Cleaning
Oiling the Hook
Filling the Oil Reservoir of the Thread Lubrication Unit
Lubricating the Bevel Gears
Checking/Adjusting the Air Pressure
Cleaning the Air Filter of the Air-Filter/Lubricator
Adjustment
Notes on Adjustment
Tools, Gauges and Other Accessories
Abbreviations
Adjusting the Basic Machine
Adjusting the Synchronizer
Needle Position in Sewing Direction on the PFAFF 471 and 491
Needle Position in Sewing Direction on the PFAFF 474
Preliminary Adjustment of the Needle Height
Needle Rise, Hook Clearance, Needle Height and Needle Guard on the PFAFF 471
Needle Rise, Hook Clearance, Needle Height and Needle Guard on the PFAFF 474
Needle Rise, Hook Clearance, Needle Height and Needle Guard on the PFAFF 491
Needle Position Crosswise to Sewing Direction on the PFAFF 471
Needle Position Crosswise to Sewing Direction on the PFAFF 474
Needle Position Crosswise to Sewing Direction on the PFAFF 491
Height of the Bobbin-Case Opener
Bobbin-Case Opener Stroke
Height of the Feed Wheel on the PFAFF 471
Height of the Feed Wheel on the PFAFF 474
Height of the Feed Wheel on the PFAFF 491
Stitch Length Control Eccentric
Stitch Length Scale Disk
Shaft Crank to Feed Wheel Drive
Shaft Crank to Roller Presser Drive
Clearance between Roller Presser and Feed Wheel
Roller Presser
Stitch Length on Stitch Length Scale
Synchronization of Roller Presser and Feed Wheel
Retainer (Only on Model 474)
Knee Lever
Needle Thread Tension Release
Thread Check Spring
Bobbin Winder
Pressure of Roller Presser
Re-Engage Safety Coupling
Adjusting the Edge Trimmer -725/04
Knife Stroke on Model 471
Knife Stroke on Models 474 and 491
Cutting Stroke on Model 471
Cutting Stroke on Models 474 and 491
Knife Position
Adjusting the Thread Trimmer -726/05 on Model 491
Position of the Knife to the Needle Plate
Knife Position Crosswise to Sewing Direciton
Knife Height
Cutting Stroke
Knife Stroke
Adjusting the Thread Trimmer -900/53
Removing the Cutter
Control Cam with Respect to Bobbin Opener and Tripping Lever
Radial Position of the Tripping Lever
Engaging Solenoid
Cutter Drive Lever
Control Cams for Bobbin Opener and Cutter (Using Adjustment Gauge)
Radial Position of the Control Cam in Relation to the Bobbin Opener
Control Cam for Cutter (Adjustment Without Gauge)
Cutter Control Lever for the Control Cam of the Cutter
Cutter Return Lever
Cutter Return Control
Fitting the Cutter
Eccentric Sleeve
Cutter Driving Rod
Cutter Function Test
Tension Release (Only on Machines with Thread Tension Control -906/10)
Adjustment of Backtacking Mechanism -911
Needle in Needle Hole (Only for PFAFF 471 and 491)
Coupling for Roller Presser Drive
Bevel Gears for Feed Wheel Drive (on the PFAFF 471 and 474)
Bevel Gear Play (on the PFAFF 471 and 474)
Bevel Gears for Feed Wheel Drive (on the PFAFF 491)
Bevel Gear Play (on the PFAFF 491)
Parameter Settings for the Quick-Ministop Motor
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Pfaff 471, 474, 491
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471
474
Instruction Manual
491
This instruction manual applies to machines from the
following serial numbers onwards:
PFAFF
471 # 2560474
PFAFF
474 # 2561194
PFAFF
491 # 2561421
296-12-18 398/002
Betriebsanleitung engl. 12.99
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474
491
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