Singer 491D Service Manual page 33

PART NO.
545858 Oil Pump (centrifugal) Screen Frame
545862 Pair of Gears Nos. 545764 and 545887
545863 Pair of Gears Nos. 545757 and 545765
545864 Presser Bar (hollow)
545868 Presser Bar Lifter
545871 Presser Bar Lifting Lever Connecting Rod
545872 Presser Bar Lifting Lever Connecting Rod Oil
Mist Retaining Disc (felt)
545873 Presser Bar Lifting Lever Connecting Rod Swivel
545875 Presser Bar Lifting Lever Pin
545876 Presser Bar Guide and Pressure Regulating Thumb
Screw 549363 with 545403
545881 Rotating Hook Bobbin Case Holder Position Bracket
545883 Rotating Hook Oil Flow Regulating Thumb Screw
Spring
545884 Rotating Hook Shaft
545885 Rotating Hook Shaft 545884 with 505648
545886 Rotating Hook Shaft 545885 with 545890
545887 Rotating Hook Shaft Bevel Gear (left hand
spiral) with two 504101
545890 Rotating Hook Shaft Oil Retaining Collar with
two 504134
545892 Slack Thread Regulator
545894 Tension Releasing Lever (body)
545898 Tension Stud
545901 Thread Eyelet (side of arm)
545902 Thread Take-up Lever Guard
545908 Thread Take-up Lever Oil Guard with 545909
545909 Oil Wick (cotton) (2)
545909 Thread Take-up Lever Oil Guard Wick (cotton)
545949 Feed Lifting Rock Shaft Flanged Bushing (2)
545949 Feed Rock Shaft Flanged Bushing (back)
545950 Rotating Hook (body) with two 549182
545951 Rotating cock complete, Nos. 945950, 545954,
545955, three 549187 and four 549186
545954 Rotating Hook Section
545955 Rotating Hook Thread Guard
545983 Presser Bar Guide Bracket with 545099
545987 Feed Bar
545990 Rotating Hook and Rotating Hook Bobbin Case
Holder complete, Nos. 545951 and 545994
545991 Rotating Hook, Rotating Hook Bobbin Case Holder
and Rotating Hook Bobbin Case complete, Nos.
540770 and 545990
545994 Rotating Hook Bobbin Case Holder
546925 Face Plate Gasket
546927 Thread Take-up Spring Regulator with 504047
546928 Thread Take-up Spring Regulator 546927 with
540533 and 540534
546933 Needle Bar Bushing (lower) 540524 with 540771
548091 Feed Rock Shaft Driving Frame Spring
548479 Oil Pump (centrifugal)(body) Position Pin (2)
548970 Presser Bar Lifting Lever Pin Spring
549128 Thread Eyelet (side of arm) Screw (Spec. No.
1003)
549182 (803) Rotating Hook Screw (2)
549183 (850) Feed Lifting Rock Shaft Crank (back) Clamping
Screw (2)
549183 (850) Feed Reverse Lever Hinge Stud Crank Clamping
Screw
549183 (850) Feed Rock Shaft Crank Clamping Screw
549186 (806) Rotating Hook Thread Guard Screw (4)
549187 (803) Rotating Hook Section Screw (3)
549230 (805) Arm Shaft (horizontal) Screw Plug (2)
549288 (830) Feed Reverse Lever Hinge Stud Crank Connecting
Link Screw (2)
549336 (825) Thread Guard (side of arm) Screw
549363 (819) Presser Bar Guide and Pressure Regulating
Thumb Screw
549382 Feed Regulating Screw (Spec. No. 1050)
549383 Feed Regulating Screw Guide Screw (Spec. No.
1050)
549384 Feed Reverse Lever Spring Screw (Spec. No.
1019)
549396 Rotating Hook Oil Flow Regulating Thumb Screw
CAT. 1901 Needle (135 x 7 #14)
PARTS FOR 491D300GA MACHINE
WHICH DIFFER FROM 491D200GA MACHINE
125314 Tension Spring, in place of 540682
142061-452 Throat Plate (large needle hole) for 149057,
in place of 52033-452
149057 Feed Dog, 21 teeth (22 teeth per inch), in
place of 149031
NUMERICAL LIST OF PARTS FOR MACHINE 491D200GA
DESCRIPTION PART NO.
540525 Needle Bar Bushing (lower), in place of 540524
540546 Needle Bar Bushing (lower) 540525 with 545935,
in place of 546933
540685 Thread Take-up Crank, in place of 540677
540688 Thread Take-up Crank 540685 with 504118, 540661
and 540662, in place of 540678
540696 Tension complete, Nos. 32758, 99691, 125314,
540672, 540683, 540684, 546928 and two 2102,
in place of 540671
540698 Needle Bar (hollow) with 504112, in place of
540702
543364 Oil Wick Holder, in place of 543363
543366 Oil Wick Holder complete, Nos. 543364, 545051
and two 545909 in place of 543365
543?17 Thread Take-up complete, Nos. 540662, 540676,
540688, 543367 and 543369, in place of 540675
545935 Needle Bar Bushing (lower) Thread Eyelet, in
place of 540771
CAT.1901 Needle (135 x 7 #16)
ACCESSORIES AND ATTACHMENTS
41400 Machine Rest Pin (wood)
55623 Rotating Hook Bobbin (3)
505655-001 Universal Bobbin Winder complete (include two
wood screws) (purchased assembly)
505656-001 Thread Unwinder (for two spools) complete
(include three wood screws)(purchased
assembly)
540520 Machine Base and Oil Reservoir Cushion (front)
(with two wire nails) (2)
540521 Machine Base and Oil Reservoir Cushion (back)
(with two wire nails) (2)
540522 Machine Hinge Connection (2)
540523 Machine Hinge Connection Cushion (2)
541513 Screw Driver (large)
541514 Screw Driver (small)
541515-001 Cloth Guide (purchased part)
545927 Oil Can (950 cc, filled with Singer Type "C"
Oil)
548701 Screw Driver (long)
549184-001 Cloth Guide Screw (purchased part)
CAT.1901 Needle (135 x 7 #14) (for 491D200AA) (3)
CAT.1901 Needle (135 x 7 #16) (for 491D300AA) (3)
MACHINE BASE AND OIL RESERVOIR
540471 Machine Base and Oil Reservoir Plug (2)
540500 Machine Base and Oil Reservoir Gasket (rubber)
543360 Machine Base and Oil Reservoir
545036 (819) Machine Base and Oil Reservoir Oil Drain Plug
Screw
545064 (805) Machine and Machine Base and Oil Reservoir
Screw Hole Plug Screw
545754 Machine Base and Oil Reservoir Oil Drain Plug
Screw Gasket (4)
545925 Machine and Machine Base and Oil Reservoir
Screw with Washer (for shipping purposes
only)
505402 Rock Shaft Knee Arm Plate
540686 Rock Shaft Spring (coil)
545912 Bell Crank Plunger
545913 Rock Shaft
545915 Rock Shaft Crank
545917 Rock Shaft Knee Arm
545918 Rock Shaft Knee Arm Hub
545921 Rock Shaft Spring
545922 Rock Shaft Stop Dog
545923 Rock Shaft complete, Nos. 505402, 540686,
545913, 545915, 545917, 545918, 545921,
545922 and 546736
546736 Rock Shaft Spring (coil) Washer
AVAILABLE AT EXTRA CHARGE
12481 Feed Dog for 12482 (for heavy material sewing)
12482-452 Throat Plate for 12481 (for heavy material
sewing)
52032-452 Throat Plate (large needle hole) for 149031
142060-452 Throat Plate (small needle hole) for 149057
545945 Box Wrench
DESCRIPTION
KNEE LIFTER PARTS