Thermo King SLXi Spectrum, Руководство по обслуживанию

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Engine Maintenance 9-29
TK 482, TK 486 and TK 486V Engines
1. Remove the rocker arm cover.
2. Remove the round cover (plug) from the timing mark access hole on the front of the bell housing.
CAUTION: Loosen all of the injection lines at the injection nozzles to prevent the possibility of the engine firing while it is
being rotated.
3. Place the engine at top dead center of the compression stroke for the number one cylinder.
a. Rotate the engine in the normal direction of rotation (clockwise viewed from the water pump end). Rotate the engine until
the 1-4 timing mark on the flywheel lines up with the index mark in access hole.
b.Check the rocker arms on the number one cylinder.
c. If the rocker arms are loose, the engine is at top dead center of the compression stroke for the number one cylinder.
d.If the rocker arms are tight, the engine is at top dead center of the exhaust stroke for the number one cylinder. Rotate the
engine 360 degrees to place the engine at top dead center of the compression stroke for the number one cylinder.
4. Check the valve clearance of both valves for the number one cylinder with a feeler gauge. The clearance for both the intake
and exhaust valve should be 0.15 to 0.25 mm.
NOTE: Check to make sure that the valve stem cap is in good condition and is positioned squarely on the top of the valve stem.
Replace the valve stem cap if it shows significant wear.
5. Loosen the lock nut and adjust the valves as required by turning the adjustment screw.
6. Hold the adjustment screw while tightening the lock nut.
7. Recheck the valve clearance.
8. Place the engine at top dead center of the compression stroke for the number three cylinder.
a. Rotate the engine again in the normal direction of rotation until the 2-3 timing mark on the flywheel lines up with the index
mark in the access hole.
b.Check the rocker arms on the number three cylinder.
c. If the rocker arms are loose, the engine is at top dead center of the compression stroke for the number three cylinder.
d.If the rocker arms are tight, the engine is at top dead center of the exhaust stroke for the number three cylinder. Rotate the
engine 360 degrees to place the engine at top dead center of the compression stroke for the number three cylinder.
9. Check and adjust both valves for the number three cylinder.
Timing Marks – TK 482, TK 486 and TK 486V
Engines
1. Timing Mark
2. Top Dead Center Mark for Cylinders 1 and 4
3. Top Dead Center Mark for Cylinders 2 and 3