Plunger Pump Mechanism - Brother HE-800A Service Manual

3-22-4. Plunger pump mechanism

4272Q
1. Check that the notches A of the plungers (1) and the lower shaft (2) are aligned, and then insert the two
plungers (1) and the compression springs (3) into the bush M (4) and secure them with the two screws (5).
2. Insert the oil tube (6) into the lubricating hole to the right of the bush M (4).
3. Insert the oil tube (7) that is connected between the plunger and the filter into the lubricating hole to the left of
the bush M (4).
4. Insert the oil tube (8) into the lubricating hole to the right of the bush M (4).
5. Pass the outlet of the oil tube (8) through the tube support (9), and then install the tube support (9) to the bed
with the screw (10).
6. Insert the oil tube (11) that is connected between the oil terminal and the plunger pump through the lubricating
hole to the left of the bush M (4).
7. Pass the oil tube (13) that is connected between the oil terminal and the oil outlet through the tube support D
(12), and then install the tube support D (12) to the bed with the screw (14).
8. Secure the four tubes that are coming out from the bush M (4) to the bed in two places as shown in the
illustration with the cord holders (15), screws (16) and plain washers (17).
9. Install the pump filter (18) to the oil filter bracket (21) with the two springs (19) and the two screws (20).
10.Insert the oil tube (7) that is connected between the plunger and the filter through the oil filter bracket (21).
11.Install the oil filter bracket (21) to the bed with the three screws (22).
HE-800A
3. ASSEMBLY
4273Q
75