Elliott Digger Derrick, Руководство по эксплуатации и техническому обслуживанию, Страница: 213 / 376

Four Section Boom Operation-common EEC-0021 V1.3
Four Section Boom Operation
use same shim quantity and location as was previously used. If locations are in
question, refer to shim calibration section in this book.
SS. Push boom together until extend cylinder butt plate makes contact with the
rear cylinder anchor plates in the rear of the 1
st
section. Install spacers, washers
and capscrews, attaching cylinder to 1
st
section boom. If cylinder is misaligned
with anchor points, cylinder butt plate can be rotated to achieve proper alignment
(holding valve up, parallel with boom top plate).
TT. Assemble top rear wear pads to the top of the 2
nd
boom section with the
cam plates and install through the winch mount end of the boom. Install
capscrew through holes in out boom sections. The wear pads on each side at the
top/rear of the boom can be adjusted over a range of 3/16 inch (4.8mm) by
rotating, end for end, the wear pad and plate or the wear pads and plate
independently. This is possible because the holes in these parts are offset from
the center. The holes are .06 inch (1.5mm) off center in the plate and .03 inch
(.8mm) off center in the wear pad. Various combinations of rotation of these parts
allow the adjustment.
UU. Install thick winch attachment bar into the mount. This bar anchors the
extend cable.
VV. Install the threaded ends of the small extend cables through hole in center
of the winch mount attachment assembly.
WW. Slightly tighten all cables. Cycle boom slowly to assure proper operation
before torqueing cables. Refer to the “Four Section Cable Tensioning” section to
properly torque the cables in the extend system. Cables must be torqued to
proper specifications for proper boom operation.
XX. Install winch and anti-two block system
Top Wear Pad Adjustment
A. With the boom fully retracted, located the inner boom section horizontally in the
outer boom section its riding in, a pry bar used to manipulate the side to side