Presser Lifter Mechanism (1) - Brother HE-800A Service Manual

3-9. Presser lifter mechanism (1)

4212Q
Apply grease
4213Q
1. Install the presser lifter connecting rod assembly (1) and the knee lifter lever (2) with the spacer (3), the washer
D (4) and the bolt (5). (Presser lifter connecting rod set (6))
2. Install the driving link (7) and the knee lifter lever (8) with the shoulder screw (9). (Lifter lever assembly (10))
3. Install the presser lifter connecting rod set (6) and the lifter lever assembly (10) with the shoulder screw (11).
4. Insert the two trimmer driving levers (12) to the inside of the arm.
5. Pass the two O-rings (13) into the shafts of trimmer driving levers (12) from the outside of the arm, and fit them
into the hollow in the arm.
6. Insert the pin of the tension release driving lever (14) into the cam grove in the lifter lever assembly (10), and
then insert into the arm.
7. Install the O-ring (16) to the tension release shaft (15), and then insert into the arm.
8. Insert the tension release cam (17) into the tension release shaft (15). Pass the tension release shaft (15)
through the tension release driving lever (14), and install the retaining ring (18).
9. While pushing the tension release shaft (15) in the direction of the arrow A, and also pushing the tension
release driving lever (14) in the direction of the arrow B, tighten the set screw (19) on the screw flat of the
tension release shaft (15).
10.Install the tension release cam (17) with the set screw (20).
11.Install the lifter lever assembly (10) using the lifter shaft (21), plain washer (22) and retaining ring (23) to the
arm, and then tighten the set screw (24).
12.Install the driving lever roller (25) and the ball bearing (26) to the trimmer driving levers (12) with the two
shoulder screws (27).
13.Install the presser lifter connecting rod set (6) to the arm with the lifter shaft A (28) and the set screw (29).
Apply grease to (12)
Insert into the cam
groove
HE-800A
Apply grease to (21)
3. ASSEMBLY
4214Q
4215Q
57