777D Off-Highway Truck FKR00001-UP (MACHINE) POWERED BY 3508B Engin...
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Product: TRUCK
Model: 777D TRUCK FKR
Configuration: 777D Off-Highway Truck FKR00001-UP (MACHINE)
POWERED BY 3508B Engine
Testing and Adjusting
3500B Engines for Caterpillar Built Machines
Media Number -SENR1123-12 Publication Date -01/10/2007 Date Updated -15/10/2007
i02708199
Crankshaft Position for Fuel Injector Adjustment and Valve
Lash Setting
SMCS - 1202
Table 1
Counterclockwise Rotation (Standard) from the Flywheel End of the Engine
Cylinders to Check/Adjust
Engine Correct Stroke For No. 1 Piston At Inlet Valves Exhaust Valves
Injectors
Top Center Position (1)
Compression 1-2-6-8 1-2-3-7 2-3-4-7
3508
Exhaust 3-4-5-7 4-5-6-8 1-5-6-8
1-3-6-7-10-12
Compression 1-4-5-6-9-12 2-4-5-8-9-11
3512
2-4-5-8-9-11 1-3-6-7-10-12
Exhaust 2-3-7-8-10-11
1-2-5-7-8-12- 1-2-3-4-5-6-8-9 3-4-6-9-10-11-
Compression
13-14 15-16
3516
3-4-6-9-10- 7-10-11-12-13- 1-2-5-7-8-12-
Exhaust
11-15-16 14-15-16 13-14
(1) Put the No. 1 Piston at the top center (TC) position and identify the correct stroke. Refer to Testing and Adjusting,
"Finding the Top Center Position for the No 1 Piston". Find the top center position for a particular stroke and make
the adjustment for the correct cylinders. Remove the timing bolt . Turn the flywheel by 360 degrees in the direction
of normal engine rotation. This will put the No. 1 piston at the top center (TC) position on the other stroke. Install
the timing bolt in the flywheel and complete the adjustments for the cylinders that remain.
Table 2
Clockwise Rotation (Reverse) from the Flywheel End of the Engine
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777D Off-Highway Truck FKR00001-UP (MACHINE) POWERED BY 3508B Engin... Page 2 of 2
Cylinders To Check/Adjust
Engine Correct Stroke For No. 1 Piston Exhaust Valves
Inlet Valves Injectors
At Top Center Position (1)
Compression 1-3-4-8 1-2-7-8 2-6-7-8
3508
Exhaust 2-5-6-7 3-4-5-6 1-3-4-5
1-3-4-6-7-12 2-5-8-9-10-11
Compression 1-4-5-8-9-12
3512
2-5-8-9-10-11 2-3-6-7-10-11
Exhaust 1-3-4-6-7-12
1-2-5-6-7-8- 1-2-3-4-5-6-9- 3-4-9-10-11-
Compression
13-14 10 12-15-16
3516
3-4-9-10-11- 7-8-11-12-13- 1-2-5-6-7-8-13-
Exhaust
12-15-16 14-15-16 14
(1) Put the No. 1 Piston at the top center (TC) position and identify the correct stroke. Refer to Testing and Adjusting,
"Finding the Top Center Position for the No 1 Piston". Find the top center position for a particular stroke and make
the adjustment for the correct cylinders. Remove the timing bolt . Turn the flywheel by 360 degrees in the direction
of normal engine rotation. This will put the No. 1 piston at the top center (TC) position on the other stroke. Install
the timing bolt in the flywheel and complete the adjustments for the cylinders that remain.
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