Manitowoc National Crane NBT40 Series, Руководство по обслуживанию

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OUTRIGGERS NBT40 SERVICE MANUAL
7-6
Published 8-01-2017 Control # 287-11
CABLE TENSIONING
1. With outriggers assembled, cycle the outriggers and
front stabilizer through full extension and retraction for
five complete cycles to remove air in cylinders.
2. Fully retract outriggers.
3. Look through the hole in the end of the outrigger box to
determine the outrigger beam position. At full retraction:
• The base of the 1
ST
section beam bottoms out in the
base of the outrigger box.
• The base of the 2
ND
section beam bottoms out against
the sheave cable anchor plates in the base of the 1
ST
section outrigger.
4. If the outrigger beams do not bottom out as described
above:
• Loosen the upper cable adjustment if the 1
ST
section
beam does not bottom out in the outrigger box.
• Loosen the lower cable adjustment if the 2
ND
section
beam does not bottom out in the 1
ST
section beam.
5. After the cables have been loosened to allow full
retraction, torque cables to 30-35 ft-lb (40-47 Nm) by:
• torque the lower cables.
• torque the upper cable to equal the lower cables.
6. Check the outriggers for proper proportioning when
extended and position retracted.
OUTRIGGER CALIBRATION
Side Pads
1. With a pair of inside/outside calipers, measure the inside
width of the outer section outrigger (Wi, Figure 7-7) at
the front pad location and three ft back from the front of
the section and record the smallest measurement.
NOTE: Method of Calibration is the same for section the 1
or 2 of the outrigger.
2. With the inside/outside calipers, measure the outside
width of the appropriate inner section (Wo,Figure 7-8) at
the rear of the section and three ft from the rear. Record
the largest measurement.
3. Measure the thickness of the wear pads and record (t
wp,
Figure 7-9).
4. Subtract the largest outside width (W
o,
Figure 7-8) of the
inner section and the thickness of the two pads (t
wp,
Figure 7-9) from the inside width of the outer section (W
i,
Figure 7-7). Add shims as required (each shim is 0.03 or
0.06 thick) to tighten the pads so that there is 0.00 - 0.06
clearance between the widest part of the inner outrigger
section and the most narrow part of the outer outrigger
OUTSIDE
CALIPERS
INSIDE
FIGURE 7-6
OUTER SECTION
FIGURE 7-7
W
0
2 PLCS TOP
W
0
1 PLC BOTTOM
INNER SECTION
FIGURE 7-8
FIGURE 7-9
Reference Only