Bosski 800 UT-X Use and care manual

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Assembly instructions for 800 UT-X knock down
1. Unpack parts from inside trailer bed, saving
the cardboard lid to be used in Step 18.
2. With the help of 2 people, turn trailer bed
upside down for assembly. Use cardboard from
packaging to protect bed rails- be careful not to
damage tailgate pins or D-rings.
3. Remove the 4 wooden blocks used for shipping
and discard/recycle as shown in the photo left.

4. Mount subframe struts with
shortest section of struts closest
to the handle, photo left. Each
strut is either Right or Left. Place
each strut on the inside portion,
flush with the bed, use bolts from
package labeled AX.
Leave bolts loose- do NOT
tighten until Step 8.
5. Install bed rest to rectangular frame as shown in the photo above with the Striker pointing forward,
use bolts from package labeled B. Notice the direction of the pivot point near the taillight points up in
the same direction as the mounted bed rest.

7. Install cross bar to the struts with
direction of ‘angle iron’ on the bottom
as shown, use bolts from package
labeled EX. Leave bolts loose- do NOT
tighten until Step 8.
6. Take assembly portion from STEP 5 and install to struts as shown in photo above, with the taillight
pointing toward the tailgate. Use pivot bolts from package labeled D.
8. Tighten bolts that join bed and sub frame
struts from Step 4.
9. Tighten bolts on cross bar from Step 7.

10. Install slam latch hook by aligning the angle of latch to the striker on the bed rest. See pictures
above for proper hardware order. Tighten small bolt from hook to spring loaded pin only tight enough so
hook and pin still move freely. Use hardware labeled I.
11. Install handle to the bed as shown in
the photo left. Use hardware labeled J.
12. Mount idler axle to the frame with the swing
arm pointing to the rear or taillight, use bolts
from package labeled H.
Note:There are 2 packages of bolts labeled H
which are used in steps 12 and 15.

13. Mount each wheel/tire assembly to
the hubs with the 4 tapered lug nuts.
Install with the valve stems facing away
from the frame. Tighten the nuts
gradually, alternating between nuts
opposite each other to
assure even seating of the wheel onto
the axle.
Inflate tire to recommended pressure on
sidewall of tire (3-5 P.S.I.)
14. On the tongue assembly, connect the male
electrical connectors to the female electrical
connectors, ensuring that the colors of the wires
match. BE CAREFUL NOT TO DAMAGE WIRES.
15. Install the tongue assembly to the frame.
Tighten to 50-71 ft-Ibs (68-96nm). Be sure the
wires do not become pinched between the frame
and the tongue. Use bolts from package labeled H.
16. Place tongue
wires in hook on
coupler.

18. Use cardboard and position as shown above to
protect sides and wheels.
19. With the help of 2 people, carefully turn trailer
over onto tires. Be careful not to damage tailgate
pins or D-rings.
17. First bolt the piston of the gas
shock and cable to the cross bar as
shown in the photo left. Next raise
the frame to position the mounting
point for easier assembly. Finally bolt
the other end of the gas shock to the
frame including the other end of the
cable. See photos for assistance. Use
hardware labeled K.