Pfaff 5483 Series User manual

k.® 5483
5483 H
Service Manual
Pfaff, D 6750 Kaiserslautem, Postfach 3020/3040, Telefon [phone], Telex 45753
Telefax (0631) 17202
From the library of: Superior Sewing Machine & Supply LLC

Service Manual for the Pfaff 5483
Notes on safety:
The machine must only be used for the purpose it has been designed for.
When converting it to another version, ali valid safety rules must be followed.
Service and repair work must only be performed by qualified personnel.
Work on live parts is not permitted, apart from exceptions according to DIN 57105 and
VDE 0105.
Please note:
The illustrations in this Manual show the Pfaff 5483-814/01 single-needle, two-thread
chainstitch, high-speed sewing machine, whereas the adjusting instructions apply to the
Pfaff 5483-814/01 single- and two-needle machines.
Differing or additional adjusting instructions for machines with floating foot (No. 91-055
660-91) are given on page 38, and for machines in version H and with -911/.. backtacking
mechanism in the Appendices on pages 40 and 44 respectively.
The machine version is indicated on the model plate on the arm standard.
Tools, gauges and other equipment needed for adjusting the Pfaff 5483:
Set of screwdrivers with blades from 2 to 10 mm wide
Set of alien keys of sizes 1.5 to 6.0 mm
Set of open-ended spanners/wrenches from 7 to 14 mm wide
Spanner/wrench, 22 mm wide
Metal rule
C-clamp No. 08-880137-00
Adjustment pin (5 mm dia.) No. 13-030341-05
Gauge No. 61-111642-19 or 08-880179-00
Gauge No. 61-111643-06
Packet of needles
Needle system: 4463-35
in version -911/.., 5463-35
in version H without -911/.., UY 128 GAS
in version -814/01 HO, 4463 KK
in version -814/02 HO, 4463-8 FL and 4463-8 FR
Spacers; 0.3, 0.5, 0.8 or 1.2 mm thick
Shims: 0.3 or 0.6 mm thick (for subcl. -911/..)
Thread and material for testing purposes
From the library of: Superior Sewing Machine & Supply LLC

1
Preparations for adjustment
1.1 Remove the belt guard.
1.2 Take out the two face plate screws and remove the face plate.
Note:
This machine Is equipped with a bearing platewithfour holes InIt(Fig. 1.0.1). By
Inserting a pin In one of these holes and pushing It Into a recess behind the
bearing plate the machine can be blocked with the needle bar at a certain
position.
P
1.0.1
From the library of: Superior Sewing Machine & Supply LLC

Correct
setting:
Position of needie in needie hoie
The needle must be centered In the needle hole In crosswise direction and Its
center line must be 32 mm from the front edge of the needle plate (Fig. 2.0.2).
2.1 Bring the needle bar to top dead center and remove the presser foot.
2.2 insert a new needle (for needle system see Inside front cover) and push It up
Into the needle bar as far as It will go; the long groove must face toward you.
2.3 Loosen screws 1, 3 and 4.
2.4 Turn out screws 5 by 2 to 3 turns.
2.5 Turn the balance wheel until the needle point Is Immediately above the needle
hole.
From the library of: Superior Sewing Machine & Supply LLC

2.6 Adjust the position of the needle bar frame so that the needle Is centered In
the needle hole In crosswise direction and that In sewing direction there Is a
distance of 32 mm between the front edge of the needle plate and the center
line of the needle.
2.7 In this position, tighten screw 3 Just lightly and screw 4securely.
2.8 Using
screw 1,pull the guide stud behind it against the eye of needle bar frame 2.
Then tighten screw 1.
2.9 Loosen screw 3 again, turn the balance wheel a few turns to make sure no twist
has occurred in the needle bar frame, then tighten screw 3again.
2.10 Tighten
both screws 5, making sure that slotted guide 6 is parallel to the needle
bar.
2.11 Check this adjustment (see "Correct setting").
From the library of: Superior Sewing Machine & Supply LLC

Correct
setting;
Note:
Preliminary adjustment of needle bar height
With the needle bar at top dead center (pin In hole 1) the needle point must
be positioned 11 mm (on versions R and HO, 8 mm) above the needle plate
(see Fig. 3.0.2 and 3.0.3).
On version H machines the distance between needle plate and needle point must
be 12.5 mm.
3.0.3
3.1 Bring the needle bar to top dead center.
3.2 Insert the pin In hole 1 of the bearing plate (to block the machine).
3.3 Loosen clamp screw 1 (see Fig. 3.0.1) in the needle bar connecting stud.
3.4 Move the needle bar up or down until the needle point is positioned 11 mm
(on version R and HO machines, 8 mm) above the needle plate (see Fig. 3.0.2
and 3.0.3).
3.5 Securely tighten both clamp screws 1.
3.6 Pull the pin out of the hole In the bearing plate.
From the library of: Superior Sewing Machine & Supply LLC

Correct
setting;
4.1
Zeroing the bottom feed
With the stitch length set at "0", the feed dog must not move when the
balance wheel Is turned.
On machines with feed regulator wheel and closed gearcase.
©
0
4.0.1
4.1.1 Loosen clamp screw 1 (Fig. 4.0.1) of stop crank 2.
4.1.2 Turn the stitch length control to "0".
4.1.3 Also loosen clamp screw 3 of feed regulation crank 4.
4.1.4 In order to show the absence of feed motion more clearly, Insert a screwdriver
In the slot of feed driving crank 5 (Fig. 4.0.2).
4.1.5 Place a 22-mm open-ended spanner on hexagon tension nut 6 and use It to hold
feed regulating shaft 7fast.
4.1.6 Rotate the balance wheel and simultaneously turn nut 6 on its shaft untii
the feed dog (1. e. the screwdriver in feed driving crank 5) no ionger moves
(Fig. 4.0.2).
4.1.7 Hold the spanner In this position and securely tighten clamp screw 3, making
sure that there Is a clearance of about 8 mm between thrust washer 8 and feed
regulating crank 4.
4.1.8 Check this adjustment (see "Correct setting") and take the screwdriver out of
feed driving crank 5 (Fig. 4.0.2).
4.1.9 Clamp screw 11s left loose for adjusting the stitch condensation.
From the library of: Superior Sewing Machine & Supply LLC

4.2
On machines with feed regulator wheel and open gearcase.
4.0.2
4.2.1 Turn the stitch length control to "0".
4.2.2 Remove the 16 screws of the gearcase cover and take off the cover with its
gasket, making sure that oil which may be running out, is caught.
4.2.3 Remove the lubrication pad from the gearcase.
4.2.4 Loosen clamp screw 9 just sufficiently to allow crank 10 to be turned on its shaft.
4.2.5 In order to show the absence of feed motion more clearly, insert a screwdriver
in the slot of feed driving crank 5.
4.2.6 Rotate the balance wheel and simultaneously tum crank 10 on Its shaft until
the feed dog (i. e. the screwdriver in feed driving crank 5) no longer moves.
4.2.7 In this position, tighten clamp screw 9.
4.2.8 Check this adjustment (see "Correct setting") and take the screwdriver out of
feed driving crank 5.
From the library of: Superior Sewing Machine & Supply LLC

4.3
On machines with feed regulator lever and closed gearcase.
©
4.3.1 Loosen clamp screw 1 of stop crank 2.
4.3.2 Push feed regulator lever 11 fully downwards.
4.3.3 Loosen screw 12.
4.3.4 Turn eccentric bush 13 so that marking 14 faces downward and the edge of the
milled surface is at an angle of roughly 45° to the front side of the machine
(preliminary adjustment for machines with subcl. -911/..; for final adjustment see
section 48).
4.3.5 Tighten screw 12.
4.3.6 In order to show the absence of feed motion more clearly, Insert a screw driver
In the slot of feed driving crank 5 (Fig. 4.0.2).
4.3.7 Place a 22-mm socket wrench on hexagon tension nut 6 and use It to hold feed
regulating shaft 7 fast.
6.3.8 Loosen clamp screw 3 of feed regulation crank 4.
4.3.9 Rotate the balance wheel and simultaneously turn nut 6 on its shaft until the
feed dog (i.e. the screw driverin feed driving crank 5, Fig. 4.0.2) no longer moves.
4.3.10 Hold the spanner In this position and tighten clamp screw 3, making sure that
there Isa clearance of about 8 mm between thrust washer and regulating crank 4.
4.3.11 Check this adjustment (see "Correct setting") and take the screw driver out of
feed driving crank 5 (Fig. 4.0.2).
4.3.12 Clamp screw 1 remains loose for adjusting the stitch condensation.
From the library of: Superior Sewing Machine & Supply LLC

4.4
4.4.1
4.4.2
4.4.3
4.4.4
4.4.5
4.4.6
4.4.7
4.4.8
4.4.9
4.4.10
4.4.11
On machines with feed regulator lever and open gearcase.
4.0.5
Make sure that clamp screw 1 (Fig. 4.0.3) is still loose, and push feed regulator
lever 11 fully downwards.
Loosen screw 12.
Turn eccentric bush 13 so that marking 14 faces downward and the edge of the
milled surface is at an angle of roughly 45° to the front side of the machine
(preliminary adjustment for machines with subcl. -911/..; for final adjustment see
section 48).
Tighten screw 12.
Remove the 16 screws of the gearcase cover and take off the cover with its
gasket, making sure that oil which may be running out, is caught.
Remove the lubrication pad from the gearcase.
Loosen clamp screw 9 just sufficiently to allow crank 10 to be turned on its shaft.
In order to show the absence of feed motion more clearly, insert a screw driver
in the slot of feed driving crank 5.
Rotate the balance wheel and simultaneously turn crank 10 on its shaft until
the feed dog (i. e. the screw driver in feed driving crank 5) no longer moves.
In this position, tighten clamp screw 9.
Check this adjustment (see "Correct setting") and take the screw driver out of
feed driving crank 5.
8
From the library of: Superior Sewing Machine & Supply LLC

Correct
setting:
Feed driving motion
With the stitch length set at its maximum and the needle bar positoned
0.8 mm before top dead center (pin in hole 4) the feed dog must not move
when the reverse-feed control is operated.
5.0.1
5.1 Turn the balance wheel until screws 1 of feed driving eccentric 2 are accessible.
5.2 Loosen both screws 1.
5.3 Turn the balance wheel to position the needle bar 0.8 mm before top dead center.
5.4 Insert the pin in hole 4 of the bearing plate (to block the machine).
5.5 Set the machine for its longest stitch.
5.6 In order to show the absence of feed motion more clearly, insert a screwdriver
in the slot of feed driving crank 3.
5.7 Turn feed driving eccentric 2 while operating the reverse-feed control until the
slot In the eccentric Is visible and the feed dog (I. e. the screwdriver) does not
move.
5.8 In this position, tighten the accessible screw 1.
5.9 Pull the pin out of the hole in the bearing plate.
5.10 Now tighten the second screw 1.
5.11 Check this adjustment (see "Correct setting").
9
From the library of: Superior Sewing Machine & Supply LLC

Feed lifting motion
For machines In version H see page 40.
For machines w/ith backtacking mechanism -911/.. see page 45.
When the needle bar is at top dead center (pin in hole 1) the slot in feed
lifting eccentric 2 must point vertically downwards (see arrow in Fig. 6.0.2).
Loosen screws 1 (Fig. 6.0.1) of feed lifting eccentric 2.
Turn
the balance wheel to bring the needle bar to top dead center.
insert the pin in hole 1 of the bearing plate (to block the machine).
Turn feed lifting eccentric 2 so that its slot points vertically downwards (see
arrow in Fig. 6.0.2).
In this position, tighten the accessible screw 1.
Pull
the pin out of the hole in the bearing plate.
Also tighten the second screw 1.
Check this adjustment (see "Correct setting").
From the library of: Superior Sewing Machine & Supply LLC

7 Feed dog height
For machines in version H see page 41.
For machines with backtacking mechanism -911/.. see page 46.
Correct With the stitch length set at its maximum and the needle bar positioned at
setting: top dead center (pin in hole 1), the feed dog must be centered in its slots
and contact the adjustment gauge throughout its length (Fig. 7.0.2).
f
7.0.2
7.0.1
7.1 Set the machine for its longest stitch and bring the needle bar to top dead center.
7.2 Insert the pin in hole 1 of the bearing plate (to block the machine).
7.3 Loosen clamp screw 1 (Fig. 7.0.1) of feed lifting crank 2.
7.4 Also
loosen both clamp screws 3 of feed driving crank 4.
7.5 Unscrew the presser foot.
7.6 Place adjustment gauge No. 61-111642-19 or 08-880179-00 on the needle plate
so that its recess is centered above the feed slots and the arrow on the gauge
points in feed direction (Fig. 7.0.2).
7.7 Lower the presser foot onto the gauge.
7.8 Center the feed dog in its siots.
7.9 Push the feed bar upwards until the feed dog contacts the gauge and hold it
there.
7.10 Turn eccentric sleeve 5 beneath the feed driving crank so that the feed dog
contacts the gauge throughout its length.
7.11 In this position, tighten clamp screws 1 and 3, making sure that the feed dog is
still centered in the needle plate slots.
7.12 Raise the presser foot, remove the gauge and pull the pin out of the hole in the
bearing plate.
7.13 Check this adjustment (see "Correct setting").
11
From the library of: Superior Sewing Machine & Supply LLC

Correct
setting:
stitch condensation
(This adjustment does not apply to machines fitted with backtacking mechanism
-911/..)
When the reverse-feed control is fully pressed, the stitch length must be
1.5 mm.
'VW mum
©
Q)
8.0.1
8.1 Set the stitch length at "1.5".
8.2 Turn stop crank 1 until it contacts the bedplate and tighten clamp screw 2 in
this position.
8.3 Set the machine for Its longest stitch and check this adjustment (see "Correct
setting").
12
From the library of: Superior Sewing Machine & Supply LLC

Looper avoiding motion
For machines in version H see page 42.
For machines with backtacking mechanism -911/.. see page 47.
I With the needle bar at top dead center (pin in hole 1) the slot in the avoiding
motion eccentric must be positioned exactly below the center line of the
shaft (see arrow in Fig. 9.0.2).
Loosen both screws 1 (Fig. 9.0.1) of avoiding motion eccentric 2.
Turn the balance wheel to bring the needle bar to top dead center.
Insert the pin in hole 1 of the bearing plate (to block the machine).
Turn avoiding motion eccentric 2 so that Its slot points vertically downwards
(see Fig. 9.0.2).
In this position, tighten the accessible screw 1.
Pull
the pin out of the hole in the bearing plate.
Also tighten the second screw 1.
Check this adjustment (see "Correct setting"). ,
From the library of: Superior Sewing Machine & Supply LLC

10
Correct
setting:
Timing the looper
When the needle bar reaches bottom dead center, the looper must be at
its right point of reversal.
J
10.0.1
10.1 Turn the balance wheel in sewing direction until the point of the advancing
looper is at the right-hand side of the needle.
10.2 In this position, attach C-clamp No. 08-880137-00 to the needle bar so that it
contacts the needle bar frame (thus blocking the upward motion of the needle
bar).
10.3 Turn the balance wheel in the opposite direction until the C-clamp contacts the
needle bar frame again.
10.4 in this position, the looper point should again be at the right-hand side of the
needle.
10.5 if it is not, loosen both screws 1 (Fig. 10.0.1) in the gearcase so that gear 2 can
just be turned by hand.
10.6 Remove the C-clamp and tum gear 2 to the required position.
14.7 Repeat steps 10.1 through 10.4.
10.8 After these adjustments, remove the C-clamp again and tighten both screws 1.
1(19 Check this adjustment (see "Correct setting").
14
From the library of: Superior Sewing Machine & Supply LLC

11
Correct
setting:
Looper height on machines without subcl. -900/..
For machines in version H see page 43.
For machines with backtacking mechanism -911/.. see page 48.
When the looper holder is in its vertical position, there must be a clearance
of 0.7 mm between the highest point of the looper and the underside of the
needle plate on single-needle machines (Fig. 11.0.2).
On two-needle machines, there must be a clearance of 1.0 mm between the
front looper and the needle plate.
11.1 Remove bed slide, cover plate, needle plate and feed dog.
11.2 Place the needle plate Inposition again and operate the presser bar lifter to lower
the presser foot onto the needle plate.
11.3 Turn balance wheel until the looper holder is vertical.
11.4 Loosen clamp screw 1 and screw 2 of eccentric bearing stud 3.
11.5 Turn eccentric bearing stud 3 until there is a clearance of 0.7 mm between the
highest point of the looper and the underside of the needle plate (or a clearance
of 1.0 mm between front looper and needle plate on two-needle machines).
11.6 In this position, tighten clamp screw 1 and screw 2.
Continued on next page.
15
From the library of: Superior Sewing Machine & Supply LLC

11.7 Ifa clearance of 0.7 mm (or 1.0 mm on two-needle machines) cannot be obtained,
proceed as follows;
10.7.1 Raise the presser foot and remove the needle plate.
11.7.2
Loosen clamp screw 4 in looper holder 5 and take off the looper (do not lose
spacer).
11.7.3 Fit an appropriate spacer (see inside front cover) on the looper neck and push
the looper into looper holder 5 again as far as it will go.
11.7.4 Set the looper blade roughly parallel to the front edge of the bedplate (pre
liminary adjustment) and tighten clamp screw 4.
11.7.5 Replace the needle plate and operate the presser bar lifter to lower the presser
foot onto the needle plate.
11.7.6 Check that there is a clearance of 0.7 mm (or 1.0 mm on two-needle machines)
between the highest point of the looper and the underside of the needie plate
when the looper holder is in its vertical position.
11.8 If necessary, repeat steps 11.3 through 11.6.
11.9 Check this adjustment (see "Correct setting").
16
From the library of: Superior Sewing Machine & Supply LLC

12
Correct
setting:
Looper angle
The surface of the looper with the thread groove must be at an angle of 2°
to the Imaginary center of the bedplate (Fig. 12.0.2).
12.0.1
12.1 Raise the presser foot with the presser bar lifter.
12.2 Remove needle plate and feed dog, then loosen clamp screw 1 (Fig. 11.0.1) of
looper holder 2.
12.3 Turn the balance wheel to move looper holder 2 to Its vertical position.
12.4 Place adjustment gauge No. 61-111843-06 against the left edge of the cover
plate support (see arrow in Fig. 12.0.2), push It against the looper and bring the
grooved looper surface into contact with the gauge.
12.5 In this position, tighten clamp screw 1.
12.6 Remove the gauge.
17
From the library of: Superior Sewing Machine & Supply LLC

13
Correct
setting:
13.1
13.2
13.3
13.4
13.5
Looper-to-needle clearance in sewing direction (preliminary adjustment)
in sewing direction there must be a clearance of 0.1 mm between looper
point and needle (see Fig. 13.0.2).
13.0.2
13.0.1
Check to make sure that the needle guard does not deflect the needle, then
turn the balance wheel until the point of the advancing looper Is in line with the
left side of the needle.
Slightly loosen both screws 1 (Fig. 13.0.1) of looper assembly 2.
Adjust the position of the looper assembly so that there is a clearance of
0.1 mm between looper point and needle.
In this position, tighten both screws 1.
If a clearance of 0.1 mm cannot be obtained, the setting of eccentric bearing
stud 3 (Fig. 11.0.1) has to be corrected. In this case repeat check of step 11.
18
From the library of: Superior Sewing Machine & Supply LLC