J&M Roll Tarp GRAVITY BOX (Since 2011) - Manual (Page 8)

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STEP 4 - ENDCAPS
3.1 Rest the lip lock OCS and centered on the top of the Gravity Box.
3.2 Rest the assembled front and back Endcaps in place.
440/540 & 680/760 Models
4.1 Using the lower holes on the front Endcap Plate
as a guide, drill holes through the front using a 1/4”
drill bit.
4.2 Insert 1/4” x 1/2” bolts and fasten using 1/4” ser-
rated fange nuts.
4.3 Repeat steps 4.1 & 4.2 for the back Endcap.
250 & 385 Models
4.1 Install the Spring Return onto the front Endcap
using only the bottom five holes. Fasten using 1/4” x
1/2” bolts and 1/4” serrated flange nuts.
4.2 Drill holes with a 1/4” drill bit through the outer
lip of the sideboard using the top five holes of the
Endplate/Spring Return as a guide.
4.3 Insert 1/4” x 3/4” bolts and fasten using 1/4” ser-
rated fange nuts.
4.4 Repeat Steps 4.2 & 4.3 for the back endcap.
-NOTE: No spring return is installed on the
back so only 1/4” x 1/2” bolts should be used.
STEP 3 - PLACE LIP LOCK AND ENDCAPS