Mast Adjustments - Sperian Miller DURAHOIST Serie Instrucciones De Uso

5.1 Mast Adjustments

The circumstances in which you are working will establish what offset you need to use. Once you determine what
offset you will apply to your mast, refer to the next page and match the mast offset to your base to ensure a safe
and steadily working system.
Pin Position 1
Top Pulley Offset
Maximum 19.00" (482mm)
Minimum 13.25" (337mm)
Bottom Pulley Offset
Maximum 16.50" (419mm)
Minimum 12.00" (305mm)
U-Bracket Maximum Anchor
Load 5000lbs (22.2kN)
Pin Position 3
Top Pulley Offset
Maximum 25.00" (635mm)
Minimum 18.00" (457mm)
Bottom Pulley Offset
Maximum 22.50" (571mm)
Minimum 17.50" (445mm)
U-Bracket Maximum
Anchor Load 3600lbs (16kN)
USE R I N S TR U C TIO N S - E N G L I SH
You may attain the
maximum offset by
fully collapsing (no
visible threads) the
adjustable gusset.
To reach the
minimum offset, you
must fully extend the
adjustable gusset.
(All pictures are shown with a maximum offset)
12
Pin Position 2
Top Pulley Offset
Maximum 21.50" (546mm)
Minimum 15.25" (387mm)
Bottom Pulley Offset
Maximum 18.75" (476mm)
Minimum 14.50" (368mm)
U-Bracket Maximum
Anchor Load 5000lbs (22.2kN)
Pin Position 4
Top Pulley Offset
Maximum 29.00" (737mm)
Minimum 21.00" (533mm)
Bottom Pulley Offset
Maximum 26.00" (660mm)
Minimum 20.00" (508mm)
U-Bracket Maximum Anchor
Load 3000lbs (13.3kN)