Manitowoc National Crane 1300A Service And Maintenance Manual

CRANE INSTALLATION 1300A
9-14 01-22-2019 Control # 051-08
6. With a WB of 258 inches (655 cm) and a 12 inch
(30.5 cm) set back from the back of the cab to the front
of the T-box, the
1300A requires an AF of about
105 inches (297 cm). Calculate the weight distribution of
the complete machine in order to determine where the
crane center of rotation is in relationship to the center of
the rear axles. A typical mount, on a 258 inch WB and a
12 inch (30.5 cm) set back, positions the crane
centerline of rotation 48 inches (122 cm) behind the
center of tandems. At this location, an AF length
(distance from center of tandems to back of truck frame)
of 105 inches (267 cm) is required. If AF is too long, cut
off excess and remove any crossmembers from back of
truck frame.
If the AF is too short, the frame needs to be lengthened.
Use channels fabricated from 100,000 psi yield material
that are the same size as the truck frame. Weld these
channels to the ends of the existing truck frame
channels. Bevel the ends of the channels to get 100%
weld joints with Grade 90 weld material. Fabricate an
inner channel of the same thickness as the truck frame
channels to span the weld joint for at least 12 inches
(30 cm) on each side of joint. Plug weld this channel to
the inside of the truck frame, then skip weld the inside
edge of the top and bottom flanges to the truck frame
flanges.
Weld 6 (152)
Skip 6 (152)
Weld 6 (152)
Skip 6 (152)
Weld 12 (304)
Reinforcing under crane
Cut outs Replace as much
material as possible. Butt weld
Overload spring stop.
Remove and replace.
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Truck frame (REF)
Reinforcing (REF)
6 (152)
6 (152)
6 (152)
6 (152)
Butt weld
FIGURE 9-8
NOTE: All dimensions are inches (millimeters)

Manitowoc National Crane 1300A Specifications

General

Brand	Manitowoc
Model	National Crane 1300A
Category	Construction Equipment
Language	English