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Curtis 1JD2520AS Installation Instructions Manual page 7

Hard/soft sided cab enclosure

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4. SIDE FRAMES (cont'd.)
4.5 With assistance, position the side frame onto the
vehicle. See fig. 4.5. Use a Phillips head screwdriver to
puncture the weatherseal on the rear legs so that bolts can
pass through. Only pierce the holes that line up with the
factory installed threaded inserts in the back of the side
frames for your particular model. Model 2320 uses the
top holes. Model 2520/2720 uses the bottom holes. Use
the following hardware: three 5/16-18 x 3/4" long button
head bolts, 3 steel washers, and 3 plastic washers per side
frame. Leave out the top bolts for 2320 only. On model
2320 only, be sure the 5/8" thick nylon spacer is in place
under the floorboard hole in the side frame. Install the
new, longer M8 x 1.25 x 45mm long bolt and washer
provided. Do not tighten any of these bolts. On models
2520/2720 only, the single floorboard hole on the side
frame on each side does not get used.
5. TOP FILLER (for model 2320 only)
5.1 Per fig. 5.1, install the top filler oriented so the long
straight edge is up top. Fig. 5.1 shows a soft sided cab
installation. The top filler should be sandwiched between
the side frames and the rear legs. Use the following hard-
ware: one 5/16-18 x 1" long button head bolt, one steel
washer, and one plastic washer per side in the higher of
the two slots as shown and into the factory installed
threaded insert in the back of the side frame.
5.2 For a hard side cab only, there would be a hard rear
panel in place in fig. 5.2. Use the following hardware:
add three (3) 5/16-18 x 3/4" long button head bolts, 3
steel washers, and 3 plastic washers to the outside sur-
face and 3 steel washers and 3 locknuts to the inside sur-
face to secure the top filler to the rear panel as shown in
fig. 5.2.
5.3 For a soft sided cab only, use only the two end
holes (not the middle hole). Use two (2) 5/16-18 x 3/4"
long button head bolts, 2 steel washers, and 2 plastic
washers to the outside surface and 2 steel washers and 2
locknuts to the inside surface. See fig. 5.2.
bulb rubber to lay flat and to-
wards the outside of the vehicle
Fig. 4.5 View from left side of vehicle
use top slot
Top
Filler
piece
locknut of snaps to be outboard
Fig. 5.1 View from left side of vehicle
three bolts here for
hard sided cab only
leave middle hole open
on soft sided cab
Fig. 5.2 View from left side of vehicle
p. 7 of 16
use lower holes
for 2520/2720
only

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