SD7H15 Type C Service Manual
Prepared July 1999 – Application Engineering
14
Service Operations – Cylinder head
5.2 Valve plate removal
1.
Using a small hammer and gasket scraper carefully separate valve plate
from cylinder block. Be careful not to damage sealing surface of cylinder
block.(Fig.21)
2.
Inspect reed valves and retainer. Replace valve plate assembly if any part
is damaged.
3.
Carefully remove any gasket material remaining on valve plate, cylinder
block or cylinder head.
Fig.21 Removal of valve plate
5.3 Valve plate and cylinder head installation.
1.
Coat new block gasket with clean refrigerant oil.
2.
Install block gasket. Align new gasket to location pin holes and orifice(s).
Notch (if present) should face same direction as oil plug or adapter.
3.
Place valve plate on cylinder block with discharge valve, retainer and nut
facing up (away from cylinder block) and location pins properly located
in holes.
4.
Ensure that there is no residual oil in each bolt hole. If oil is present it
must be removed to prevent thread damage.
5.
Coat head gasket with clean refrigerant oil.
6.
Install head gasket over location pins, checking for correct orientation.
7.
Install cylinder head.
