pads “1”, “3”, and “5” are to be backed off to enable aligning the boom
sections later.
2. With the boom still retracted adjust the cast iron blocks “11”, “9”, and “7” to
center the boom sections at the front and allow approximately 1/16 to 1/8 inch
clearance on each side between the cast padr and the boom section.
3. Lubricate pads “1”, “2”, “3”, “4”, “5”, and “6” and extend the boom.
4. Visually align #2 boom section with base section by shimming pad “12” on
either side to bring the #2 section into alignment. Check the alignment of the
#2 section by running a string along the top of the base and #2 section as
shown below. Shim and install the other pad “12” to a 1/ 32 inch clearance
between the pad surface and the #2 boom section.
RT500
Service / Parts
256 REVISED:
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