Service Repair Manual
Models
323D L Excavator
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Product: EXCAVATOR
Model: 323D L EXCAVATOR NZF
Configuration: 323D L Excavator NZF00001-UP (MACHINE) POWERED BY C6.6 Engine
Disassembly and Assembly
C6.6 Engines for Caterpillar Built Machines
Media Number -KENR6081-15
Publication Date -01/03/2014
Date Updated -04/03/2014
i06960581
Inlet and Exhaust Valve Springs - Remove and Install
SMCS - 1108-010
Removal Procedure
Table 1
Required Tools
Tool Part Number
Part Description
Qty
A
1P-1860
Retaining Ring Pliers
1
B
9U-6193
Valve Spring Compressor
1
416-0288
Adapter
1
416-0292
Head
1
C(1)
9U-6198
Crankshaft Turning Tool
1
C(2)
9U-7336
Housing
1
5P-7305
Engine Turning Tool
1
(1) The Crankshaft Turning Tool is used on the front pulley.
(2) This Tool is used in the aperture for the electric starting motor.
Start By:
a. Remove the rocker shaft assembly. Refer to Disassembly and Assembly, "Rocker Shaft and
Pushrod - Remove" for the correct procedure.
Note: Either Tooling (C) can be used. Use the Tooling that is most suitable.
NOTICE
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323D L Excavator NZF00001-UP (MACHINE) POWERED BY C6.6 Engine(SEBP56...
2020/8/28
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Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
Note: The following procedure should be adopted to remove the valve springs when the cylinder
head is installed to the engine. Refer to Disassembly and Assembly, "Inlet and Exhaust Valves -
Remove and Install" for the procedure to remove the valve springs from a cylinder head that has
been removed from the engine.
Note: Ensure that the appropriate piston is at top dead center before the valve spring is removed.
Failure to ensure that the piston is at top dead center may allow the valve to drop into the cylinder
bore.
Personal injury can result from being struck by parts propelled by a
released spring force.
Make sure to wear all necessary protective equipment