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Revision B December 2013
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8. Attach the “Upper Frame Support” (PN 615578) to the attachment Bracket using the 1” x 3”
grade 5 bolts. Center the Upper Frame support to the Attachment Brackets before
tightening. Torque the nuts to 240 N-m [175 ft-lb].
9. Check again to assure that the front of the Cartridge is at 305 mm [12”] high and the rear of
the Cartridge is set at 330 mm [13”] high. Move the Cartridge, Backup, and Support Frame
Assembly up to the truck frame. Center the “Upper Frame Support” on the truck frame (with
underride) and tack weld in place.
Note:
The Upper Frame Support must be in intimate
contact with the truck frame and centered before welding.
Important:
If there is interference with something on the truck which cannot be
moved, the
Upper Frame Support
may be disassembled from the
Support
Frame Attachment Brackets
and assembled to the truck frame by inverting the
Upper Frame Support
as shown in Figure 5 and then locating and welding it
using the dimensions and cautions as shown in Figure 1 and 2. Angle cross
member may need to be cut out at this time in order to proceed.
10. Remove the 1” diameter Pins from the Support Frame and Support Frame Attachment
Brackets and move the Cartridge, Backup, and Support Frame Assembly away from the
truck.
11. Weld the “Upper Frame Support” to the truck frame per Underride Assembly drawing.
Note:
Minimum weld length to each frame (excluding gusset welds) is 380 mm [15”] (see
Part A in Step #4). Weld the four Gussets (PN 610073) as shown making sure there is
adequate bolt clearance near the holes. Paint the exposed metal parts using the primer and
spray paints provided (see Figure 2 and 3).
12. Position Lower Truck Brackets (PN 605505) as shown in Figure 6. Place one 13 mm [1/2”]
thick Shim (PN 614055) under each Lower Truck Bracket (PN 605505). Attach with 3/4"
diameter x 4” long all thread H.H. bolts, and torque to 200 N-m [150 ft-lb].
Figure 5
NUT, HX, 1, G5
WASHER, FLAT, 1 X 2 1/2”, G5
WASHER, LOCK, 1, G5
TRIM AS REQUIRED
(SEE INSTRUCTION, FIG 2)
UPPER FRAME SUPPORT
Part may be rotated as summarized
in shaded box (step 10).
SUPPORT FRAME
ATTACHMENT BRACKET
BOLT, HX, 1 X 3, G5
