DE08TS Diesel Engines Maintenance of Major Components
2. disassembly
a. Clamp the feed pump with a vise and disassem-
ble the hollow screw (30, 32), strainer (31) and
seal ring (35, 36).
b. Take off the priming pump (25), plug (16), both
seal rings (18), spring (15), and check valve (14).
c. Take off the plug (7), seal ring (8), spring (6), and
piston (5) on the piston side.
d. Pull out the snap ring (20) holding the tappet (10).
e. Disassemble the snap ring, then take off the tap-
pet (10) and push rod (1).
3. Inspection
a. If the check valve is damaged or scored on its
seat face, replace it with a new one.
b. Inspect the piston and tappet for damage.
c. Replace the push rod if excessively worn, and
replace together with the pump housing if
required. The inspection for wear should be per-
formed 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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