Figure 4-11.Marking procedures.
Step 7. Determine the rear axle weight (RAW). The
RAW is the total weight reading of the scales under the
rear tires. Follow the procedures for step 5 and label the
reading as RAW on the masking tape. Remember, the
RAW is the weight readings of both tire scales added
together and recorded in pounds.
NOTE: The RAW for vehicles with tandem axles is
the weight of the IAW and the RAW added together and
labeled above the trunnion (fig. 4-11).
Step 8. Compute moment 1 (M1). The formula for
M1 is distance 1 times the forward axle weight, or
D1 x FAW = M1.
Step 9. Compute moment 2 (M2). The formula for
M2 is distance 2 times the intermediate axle weight, or
D2 x IAW = M2.
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).
GVW is determined by adding the axle weights. The
formula for GVW is FAW + IAW + RAW = GVW.
Step 12. Determine the total moment (TM). TM is
determined by adding all the moments. The formula is
M1 + M2 + M3 = TM.
Step 13. Compute the C/B of the vehicle. This is
done by dividing the GVW into the total moment, which
Figure 4-12.Center of balance of tracked vehicle.