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Z886 PERMA-TRENCH
INSTALLATION INSTRUCTIONS
Z886
Installing Grates
After the concrete has been poured, vibrated, and given
sufficient time to dry, grate lockdown bolts must be
installed. The center of the grate should straddle the tie
strap that spans the frame. The exception is when both
channels and frames are cut. To place these grates, line
up the lockdown hole in the grate with the lockdown
hole in the tie strap. Lockdown bolts can be installed
using a 1/2" [13] socket.
LOCKING DOWN GRATES
• Start all lockdown bolts on each grate into the
lockdown prior to tightening them down.
• There may be gaps up to 1/4" [6] to ensure all grates
will lockdown.