Daewoo ST Series Instruções de Operação Página 143

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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 plug (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) Re-assembly
Re-assembly operation is performed in reverse order of disassembly. All the gaskets must be
replaced with new ones at re-assembly.
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