Service Repair Manual
Model
245D EXCAVATOR
Shutdown SIS
Previous Screen
Product: EXCAVATOR
Model: 245D EXCAVATOR 7ZJ
Configuration: 245D EXCAVATOR 7ZJ00001-UP (MACHINE) POWERED BY 3406 ENGINE
Disassembly and Assembly
3406C DIESEL ENGINES FOR CATERPILLAR BUILT MACHINES
Media Number -SENR6409-02
Publication Date -01/07/2006
Date Updated -19/05/2015
SENR64090006
Automatic Timing Advance
SMCS - 1272-010; 1272-015; 1272-016
Remove & Install Automatic Timing Advance
1. Remove nuts (1), cover (2), and the gasket.
2. Put No. 1 piston at the top center compression position (TC) with the following procedure:
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a. Remove plug (3), two bolts and cover (2) from the flywheel housing.
b. Install Tool (B) in the flywheel housing. Use Tool (B) to slowly rotate the engine in the
direction of normal rotation, (counterclockwise as seen from the flywheel end of the engine), until
timing bolt (4) can be installed in the flywheel housing and into the hole in the flywheel.
c. Remove the valve cover from the valve cover base. Check to see if both rocker arms (5) for the
No. 1 cylinder can be moved backward and forward.
NOTE: The No. 1 piston is at the top center compression position (TC) when the timing bolt is
installed in the flywheel and both rocker arms for the No. 1 cylinder can be moved backward and
forward. If both rocker arms cannot be moved, the No. 1 piston is not at the top center
compression position (TC). Remove the timing bolt from the flywheel and rotate the engine in the
direction for normal rotation, (counterclockwise as seen from the flywheel end of the engine one
full turn 360 degrees, and install the timing bolt again.
3. Remove the timing bolt, and use Tool (B) to rotate the engine in the opposite direction of
normal rotation (clockwise as seen from the flywheel end of the engine) a minimum of 30
degrees.
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245D EXCAVATOR 7ZJ00001-UP (MACH