Hitch Assembly for 20,500#:
If the hitch type to be installed is a 20,500# (Part #0800), there is no assembly required
except to attach the Base Rails to the base feet of the hitch Base using the four 1/2" Base
Rail Pins and four #3 Pin Clips (See exploded drawing on page 3).
This hitch has four height settings and should be adjusted according to the directions
found in the Operators Instructions found in the same box as the hitch. Be sure to torque
all four 1/2" x 1 1/2" Bolts to 75 foot pounds after adjusting height.
Hitch Assembly for 15,500#:
If the hitch type to be installed is a 15,500# (Part #1200), it will be necessary to assem-
ble the hitch first. Refer to page 3, the exploded view of this hitch and the parts list below
the drawing then follow these steps:
1. Attach the Base Sides to the Base Rail Assembly using the four 1/2" Base Rail Pins and
four #3 Pin Clips.
2. Remove the 3/4" x 7" Pivot Bolt from the Rocker Arm and Crossmember.
3. The Rocker Arm is shipped upside down in the Crossmember for better packaging and
will need to be removed and reinstalled right side up in the Crossmember as shown in
the exploded view drawing on page 3. Tighten the 3/4" x 7" Pivot Bolt only enough to
flatten the 3/4" Lock Washer or enough so that the Rocker Arm will rotate stiffly. Lu-
bricate the 3/4" Pivot Bolt with heavy grease before installing.
4. Fasten the Crossmember and Base Sides together using six each of the 1/2"-13 x 1
1/2" Bolts, 1/2" Lock Washers and 1/2"-13 Hex Nuts, tighten bolts to 75 foot pounds.
This hitch has four height settings and should be adjusted according to the directions
found in the Operators Instructions found in the same box as the hitch.
5. Fasten the Fifth Wheel Plate in the Rocker Arm using two each of the 1/2" Clevis Pins
and #3 Pin Clips after installing the Release Handle and Main Spring as shown below.
Be sure to install the Main Spring so that the end with the swivel hook is inserted into
the open end of the Release Handle as shown below.
SuperRail Installation Inst. Rev. 2/23/2003
Hitch Assembly
Fig. 3.
Page 4
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