SkyTrak 6036 Tier II Operation Manual - Manual (Page 157)

General Maintenance
151 Model 6036
11. Measure the sag (3) in the top boom extend chains (4) between the
bottom of the chains and the top of the intermediate boom (5) 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) or more than 2.5" (64 mm), the top boom chains need to be
adjusted. See “Top Boom Chain Tension Adjustment” on page 152.
OA0491
3
4
5