2) Disassembly
•
Clamp the feed pump with a vise and disassemble the plugs (30, 32), strainer (31) and gaskets
(35, 36).
•
Take off the priming pump (25), plug (16), both gaskets (18), spring (15), and check valve (14).
•
Take off the prig (7), gasket (8), spring (6), and piston (5) on the piston side.
•
Pull out the snap ring (20) holding the tappet (10).
•
Disassemble the snap ring, then take off the tappet (10) and push rod (1).
3) Inspection
•
If the check valve is damaged or scored on its seat face, replace it with a new one.
•
Inspect the piston and tappet for damage.
•
Replace the push rod if excessively worn, and replace together with the pump housing if
required. The inspection for wear should be performed in the same procedure as for suction
pressure test described below.
4) Reassembly
Reassembly operation is performed in reverse order of disassembly. All the gaskets must be
replaced with new ones at reassembly.
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