P/N 1808684 Rev. I
8
Spring Pivot Installation - Trailers
STEP 2:
Position pivot mount plate at marked location. Using
holes in plate as guide, mark hole locations on frame
rail and drill 5/8" holes. Fasten with grade 5 or better
5/8" bolts, washers and nuts (not included). Repeat to
install pivot mount plate in same location on passenger
side frame rail.
STEP 1:
Determine spring pivot mount locations on trailer
frame. On driver side of trailer, measure distance from
back of base assembly to back of longest container.
Divide measurement in half and mark location on
trailer frame. Repeat on passenger side.
NOTE:
To obtain accurate measurements, load longest
container before measuring.
NOTE:
Do not weld directly to trailer frame as this can weaken
frame and potentially void warranty. Components may be
welded to plates/structure already existing on trailer frame.
STEP 3:
To determine spring pivot tube lengths, first measure
distance between outside faces of pivot mount plates
(frame width plus thickness of two plates). Subtract
measurement from overall width of 99 1/2" and divide
remainder in half. Cut spring pivot tubes to this length.
Item Part #
Description
1. 1808635 Internal Mount Spring Assembly - Driver Side
2. 1808634 Internal Mount Spring Assembly - Passenger Side
3. 1808641 Spring Pivot Tube
4. 1808646 Frame Mount Gusset
5. 1808645 Frame Mount Plate
J. 1800356 Carriage Bolt - 1/2" x 1 1/2"
R. 1800995 Lock Nut - 1/2"
1
2
J
R
3
5
4
3
5
4
R
J
1/2
length
1/2
length
full
length
99 1/2"
length
of
pivot
tube
length
of
pivot
tube
width
at
pivot
plates
frame
mount
plate
drill
5/8"
holes
5/8"
bolts
(
washers
&
nuts
not
shown
)
1/2
length