Detroit Diesel 4000 Series, Service Manual, Page: 783 / 2706

SERIES 4000 12/16V SERVICE MANUAL
To avoid personal injury when barring the engine over,
stand clear so that the crankshaft will not unexpectedly
rotate and cause loss of control of barring tool.
29. Using the barring tool, set piston of cylinder to be checked to firing TDC. See Figure 482.
Figure 482 Position of Swing Arm Rollers at Firing TDC
NOTE:
At firing TDC, both rollers of swing arm of respective cylinder are in base circle (arrow) of
camshaft.
All information subject to change without notice.
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