Inspection; Assembly - JLG 400S Service And Maintenance Manual

Inspection

SMALL OR MINOR SURFACE SCRATCHES CAN BE CAREFULLY POLISHED.
1. Clean all parts in a solvent tank and dry with com-
pressed air prior to inspecting. Carefully inspect all criti-
cal areas for any surface finish abnormalities: Seal
grooves, bearing grooves, thrust surfaces, rod surface,
housing bore and gear teeth.
2. Inspect the thrust washers (304) for rough or worn
edges and surfaces. Measure it's thickness to make sure
it is within specifications (Not less than 0.092 in. or
2.34 mm).
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SECTION 4 - BOOM & PLATFORM
3. Inspect the wear guide condition and measure thick-
ness (not less than 0.123 in. or 3.12 mm).

Assembly

1. Gather all the components and tools into one location
prior to re-assembly. Use the cut away drawing to refer-
ence the seal orientations.
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