Jackco Body Straightener Model 857 (w/1.2 Ton Crane & Swivel Post) - Manual (Page 4)

HOOK-FOR SWAY WITH MASH
Perimeter Frame(ladder frame)
HOOK-UP SWAY AND MASH
Unibody Construction
this configuration will move the frame forward and sideways
at the same time. Thereby correcting combination damage in
a single hookup. For vehicles with unibody construction, secure the body
by using underbody clamps and rocker pinch welds.
Multiple clamps (secure points) maybe needed to move
the section as a unit
24"Min 24"Min
24"Min
ALTERNATE HOOK-UP FOR FRONT END SWAY
Place the body straightener as show and anchor it to the rocker
panel pinch weld. The pivot arm first is chained the frame rail or
with the help of underbody clamps, to prevent the machine from
swinging forward under load. Then a pulling chain is attached to
the front end to provide a direct sideway pull. Both the holding
chain and pulling chain should be attached to the body
straightener at the same point to avoid tipping the body
straightener. To obtain a direct side movement of the front end, use a
hook-up as shown above. Place body straightener on its
side and anchor it to the pinch welds or to the pivot arm
pulls horizontally sideways. The underbody anchoring
system should be used to resist the side load through
both rocker panels. This system can be used with either
unibody or frame type construction.
HOOK-UP FOR FRONT END SWAY
3.