SkyTrak 6042 Operation Manual - Manual (Page 157)

General Maintenance
155 Model 6042 Origin 5/02
11. Measure the sag (Figure 104, 1) in the top boom extend chains (2)
between the bottom of the chains and the top of the intermediate
boom (3) at their closest point. Acceptable boom chain sag is
between 1.5" (38 mm) and 2.5" (64 mm). If the measurement is less
than 1.5" (38 mm), the top boom chains need to be adjusted. See
“Top Boom Chain Tension Adjustment” on page 156.
Figure 104
OA0491
1
2
3