Brother International DB2-B773 Service Manual - Page 33

Brother International DB2-B773 Manual

Get Brother International DB2-B773 PDF manuals and user guides View all Brother International DB2-B773 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 33 highlights

El Upper feed mechanism 0 9 0 0 O 0 O 0 O 1) Attach the upper feed rock shaft 0 and the upper feed rock arm (upper) @ to the machine head. Then attach the upper feed rock shaft Oto the collar ©, the upper feed rock shaft 0, and the collar in that order with the screws O. 2) Tighten the screw firmly. 3) Attach the upper feed arm assembly @ to the upper feed bracket assembly ® pin. Then attach them to the arm. 4) Insert the upper feed rock arm (lower) 0 into the branch of the upper feed rock arm (upper) ®. Place the washer 0 on the upper feed rock arm (lower) O. Then attach them to the upper feed arm assembly ®. 5) Tighten the screw firmly. 6) Attach the connecting lever stud ®, the upper feed connecting lever 4D, and the crank assembly 0 with the screw 0 and the two screws O. NOTE: After assembling the upper feed mechanism, see page 36 " E Adjusting the timing of the upper feed vertical movement," and page 35 " Adjusting the timing of the upper feed horizontal movement." Tighten the screws firmly. -29-

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
El
Upper
feed
mechanism
0
9
0
0
O
0
0
O
O
1)
Attach
the
upper
feed
rock
shaft
0
and
the
upper
feed
rock
arm
(upper)
@
to
the
machine
head.
Then
attach
the
upper
feed
rock
shaft
Oto
the
collar
©,
the
upper
feed
rock
shaft
0,
and
the
collar
in
that
order
with
the
screws
O.
2)
Tighten
the
screw
firmly.
3)
Attach
the
upper
feed
arm
assembly
@
to
the
upper
feed
bracket
assembly
®
pin.
Then
attach
them
to
the
arm.
4)
Insert
the
upper
feed
rock
arm
(lower)
0
into
the
branch
of
the
upper
feed
rock
arm
(upper)
®.
Place
the
washer
0
on
the
upper
feed
rock
arm
(lower)
O.
Then
attach
them
to
the
upper
feed
arm
assembly
®.
5)
Tighten
the
screw
firmly.
6)
Attach
the
connecting
lever
stud
®,
the
upper
feed
connecting
lever
4D,
and
the
crank
assembly
0
with
the
screw
0
and
the
two
screws
O.
NOTE:
After
assembling
the
upper
feed
mechanism,
see
page
36
"
E
Adjusting
the
timing
of
the
upper
feed
vertical
movement,"
and
page
35
"
Adjusting
the
timing
of
the
upper
feed
horizontal
movement."
Tighten
the
screws
firmly.
-29-