JLG 340AJ, Руководство по обслуживанию и ремонту

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SECTION 4 - BOOM & PLATFORM
3121259 – JLG Lift – 4-3
Inspection
1. Inspect all boom pivot pins for wear, scoring or other
damage, and for tapering or ovality. Replace pins as nec-
essary.
2. Inspect lift cylinder pins for wear, scoring or other dam-
age, and for tapering or ovality. Ensure pin surfaces are
protected prior to installation. Replace pins as neces-
sary.
3. Inspect telescope cylinder rod attach pin for wear, scor-
ing or other damage. Replace pin as necessary.
4. Inspect inner diameter of boom pivot bushings for scor-
ing, distortion, wear or other damage. Replace bushings
as necessary.
5. Inspect wear pads for wear.
6. Inspect all threaded components for damage such as
stretching, thread deformation, or twisting. Replace as
necessary.
7. Inspect structural units of boom assembly for bending,
cracking, separation of welds, or other damage. Replace
boom sections as necessary.
Assembly of the Main Boom
1. Using JLG P/N 0100011 thread locking compound or
equivalent, install the bottom wear pads and shims as
noted during disassembly on the rear of the fly section.
Torque the retaining bolts to 40 ft.lbs. (55 Nm). Install
the rest of the wear pads on the rear of the fly section
but do not install the shims or torque them at this time.
2. Using an adequate lifting device, slide the fly boom sec-
tion into the base boom section. Install the remaining
shims on the rear of the fly section as noted during dis-
assembly and torque the retaining bolts to 40 ft.lbs. (55
Nm). Pull the fly section out of the base section enough
to install the pin that secures the telescope cylinder rod
to the fly boom section.
3. Using JLG P/N 0100011 thread locking compound or
equivalent, install the front wear pads and shims as
noted during disassembly on the base boom section.
Torque the retaining bolts to 40 ft.lbs. (55 Nm).
4. Using an adequate lifting device, install the telescope
cylinder into the boom assembly. It will aid assembly if
the cylinder is extended to enable connection to the fly
boom section.