16
(4) Apply a uniformly thin covering of vacuum grease to the new O-ring (P-18), and
replace the old O-ring used with the type-B inlet pipe.
(5) Screw the type-B inlet pipe into the non-return valve casing.
Note: Take care not to cut the O-ring when screwing in the inlet pipe.
(6)
Coil the seal tape four to five times around R1/4 screw of non-return valve.
(7) Assemble in the reverse order to disassembly.
5) Replacing head gaskets (simultaneous replacement of head gaskets and non-return valves
is recommended)
Use tools No.1, 3, 5, 7, 9, and 10.
(1) Remove up to the head gasket in accordance with steps (1)~(3) for replacement of the
valves.
(2) Replace the head gasket.
(3) Place the pump head cover on the pump head gasket, and tighten the six hexagon
socket head cap screws (M5 x 16L) equally in diagonally opposite pairs to 5Nm with a
torque wrench.
6) Replacing bearings
Contact the manufacturer's service division for replacement of bearings.
