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DISASSEMBLY -832450370
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TM-10-3930-660-24-2 Truck Forklift; 6 000 lb. Variable Reach Rough Terrain Manual
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INSPECTION - CONTINUED -832450372
TM 10-3930-660-24-2
CYLINDER HEAD ASSEMBLY REPAIR - CONTINUED
0270 00
CLEANING - CONTINUED
7.
Remove valves according to their location in the cylinder head.
8.
Clean valve springs with dry cleaning solvent and dry thoroughly with compressed air.
INSPECTION
1.
To inspect cylinder head assembly (WP 0317 00), check for uneven surfaces and warpage of cylinder head.
2.
Place a straightedge along length of cylinder head mating surface and check for distortion.
3.
Measure gap under straightedge in areas indicated in chart.
NOTE
If warpage, uneven surfaces, or distortion are found, cylinder head assembly must be replaced.
409-858
Measured Area
Variation Limit
Any 2 in. (5 cm) dia. area
0.004 in. (0.1016 mm)
Overall end-to-end
0.003 in. (0.0762 mm)
Overall side-to-side
0.003 in. (0.0762 mm)
4.
Inspect valves. Grind all reused valves. Mark new
valves respective to their location in the cylinder head.
5.
Inspect valve stems for scratches or scuff marks.
Replace valve if scratches or scuffing is found.
6.
Inspect valve faces for ridges, cracks, or pitting.
Replace valve is ridges, cracks or pitting is found.
7.
Check valve stem tip for flatness and replace valve if
necessary.
409-859
0270 00-3

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