Baby Lock BLE1 Service Manual page 19

17. REPLACEMENT OF LOOPER DRIVING CAM AND ROLLER
To replace
Before remove the cams on the main shaft, you are required to check the distance of gap
between rightside of right bush and left side of handwheel (A).
1) Remove Spool stand set, Bace plate, Side cover, Face cover, Knife holder cover and Knife cover set.
2) Loosen all screws of Timing pully (1), Machine engage plate set(2), Balancer (5), Lower looper
driving cam (7), Chain looper driving cam (8), Feed dog driving cam (9) and Knife driving cam (10)
on the main shaft.
3) Remove the main shaft with the handwheel to the rightward.
For Model BLE1,BLE1DX,BLE1AT, BLE1ATW,BLE1SX and BLE1LX:
Replace Upper driving cam or Rollers .
For Model BLE8,BLE8W and BLCS:
In case of replasement of Upper looper driving cam or Rollers, it can be replaced.(Except BLCS)
In case of replasement of Lower looper driving cam or Rollers, you are required to do next steps.
4) Remove the nut (11) of Needle driving rod set (6) and loosen the screw (13).
5) Remove Needle driving rod set (6) from Lower looper driving cam (7).
6) Remove lower looper driving cam (7) with slightly twist from Chain looper thread take-up and
Chain looper driving cam.
7) Replace Lower looper driving cam or Rollers.
12.Needle height adjuster
14.Needle driving arm
13.Screw
9.Feed dog driving cam
10.Knife driving cam
8.Chain looper
driving cam
7.Lower looper driving cam
10
8
9
11.Nut
6.Needle driving rod set
5.Balancer
4
7
5
6
18
4.Upper looper driving cam
3.Spring
2.Machine engage plate set
1.Timing pully
1
3
2
A
.