When disassembling the pump, unscrew the cover bolt 9 (see fig. 16), remove the cover and take out the fuel filter 6 of the pump. Then, the screws securing the upper housing 7 of the pump and the lower housing 1 are unscrewed and separated. Turning the diaphragm assembly 90°, remove the assembly and spring.
If necessary, the axle is pressed out and the balancer 15, the lever 16 and the balancer spring are removed. Unscrew the stem nut 11 and remove the pump diaphragms.
The assembly of the fuel pump is carried out in the reverse order.
When installing diaphragms, pay attention to the correct location of the holes relative to the holes in the lower pump housing.