Brother LH4-B800E, Руководство по обслуживанию

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LH4-B800E
1 - 8
1. MECHANISM DESCRIPTION
1-8. Lubrication mechanism
1. The plunger pump
w
that is attached to the lower shaft
q
draws oil up (A) through the pump filter
e
and sends
the oil (B) to the oil terminal
r
, where the wick lubricates the felt
t
.
2. The oil is transferred from the felt
t
by means of the wick to the following places.
1) Oil is supplied to bush F
y
, and it passes through the upper shaft
u
and thread take-up crank
i
to the needle
bar crank
o
. Furthermore, oil is supplied from bush F
y
to zigzag lever bush F
!0
.
2) Oil is supplied from the needle bar bracket support shaft
!1
to the needle bar
!2
, and from there it is supplied
to parts such as the needle bar clamp
!3
.
3) Oil is supplied from the support shaft
!4
to the thread take-up
!5
.
4) Oil is supplied to bush M
!6
.
5) Oil is supplied to zigzag lever bush R
!7
.
6) Oil is supplied to the motor lever shaft
!8
, and from there it is supplied to the zigzag connecting rod shaft
!9
.
(Oil which splatters inside the arm is collected by the felt
@0
and is supplied to the crank rod guide
@1
and to the
slide block
@2
.)
3. The oil which is sent to the oil terminal
r
is returned to the oil tank via the oil return tube (C).
4. The oil which collects in the jaw of the arm, is absorbed by the felt
@3
and is drawn up by the plunger pump
w
through the tube (D), and it is then returned to the oil tank (E) by the plunger pump
w
.
e
w
q
i
u
y
!3
!2
!1
!8
!7
!6
(B)
(C)
(D)
(E)
(A)
(B)
(D)
(A)
r
!9
t
o
!5
!4
@0
!0
@1
@2
@3