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8- Service procedures - Cylinder head
Rear cylinder head
Gear
O-ring
Gasket
Valve plate
assembly
Suction valve
Roll pins
Reassembly
Rear cylinder head
1. Place the cylinder shaft assembly on the
bench with the rear side up.
2. Install the rear suction valve so that it
matches the roll pins.
3. Install the rear valve plate on the rear suction
valve.
4. Coat the new gasket with clean compressor
oil and install it on the rear valve plate.
5. Coat the new gear pump with clean
compressor oil and install it on the end of
the drive shaft.
6. Coat the new O-ring with clean compressor
oil and install it on the rear cylinder head.
7. Install the rear cylinder head.
When positioning the head, ensure the gear
pump is inserted into the hole in the cylinder
head.
Ensure each valve matches each cylinder
valve escape groove.
CAUTION!
Do not mistake the front and rear valve
plates.
CAUTION!
Escape groove
Gear pump
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