A SERVICE OF

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5
5
with the “35” index mark on the staff
(Figure 8). To continue in increments of one minute
of angle, continue the adjustment procedure as
explained, always aligning the next index mark
on the elevator with the very next index mark on
the staff.
When a full 5 minute cycle of angle adjustment has
been finished, the first line on the elevator will align
with the next 5 minute mark on the staff. (In this
example, the “30” index mark.)
FIGURE 7
FIGURE 8
26 Minutes of Angle Indicated
27 Minutes of Angle Indicated