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Figure 2-6.-Portable scales. | Up
Equipment Operator Advanced - Advanced construction equipmet operators manual | Next
Shoring |
Figure 2-8.—Weight and balance of tracked
vehicle.
Step 10. Compute moment 3 (M3). The formula for
M3 is distance 3 times the rear axle weight or D3 X
RAW = M3.
Step 11. Compute the gross vehicle weight
(GVW). The formula for GVW is FAW + IAW + RAW
= GVW.
Step 12. Determine the total moment (TM).
TM is determined by adding all the moments
together. The formula is Ml + M2 + M3 = TM.
Step 13. Compute the center of balance (C/B)
of the vehicle. This is done by dividing the GVW into
the total moment, which provides the C/B value in
inches.
Step 14. Locate the center of balance (C/B).
The C/B is located by measuring from the RDL the
number of inches computed in Step 13. At that point,
label on the side of the vehicle with masking tape, a
letter “T.” The horizontal portion of the tape is
labeled “GVW” plus the weight. The vertical portion
of the tape is labeled “C/B” and the distance in inches
measured from the RDL (fig. 2-7).
Although there are other procedures used to
compute the center of balance for vehicles, the above
procedures must be followed when you use the
computer aided load manifest (CALM) computer
program currently used in the NCF.
To find the C/B of a track vehicle (dozer),
drive the vehicle onto a wooden beam until it balances
(fig. 2-8). The weight of a track vehicle is determined
Figure 2-9.-Roller shoring.
2-8
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