Fitting the restraint to the driver – Simpson R3 User Manual
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6) Drill the helmet using a 3/16” drill at the point marked
in step 5.
7) Clean the hole in the helmet as much as possible.
Put a medium strength locker on the Nut-Washer and
place it on the inside of the helmet over the hole.
Thread the screw from the outside of the helmet
trough the D-ring and into the helmet and Nut-Washer.
8) Tighten the hel-
met D-ring screw
snuggly. Over tight-
ening is not neces-
sary and could dam-
age the helmet shell.
The D-ring should sit
at a 45 degree down-
ward angle.
Fitting the Restraint to the Driver
To adjust the chest strap:
Loosen the chest strap in the buckle and slide the buckle to fit the occupant’s chest size. The har-
ness should fit snug to tight in the chest area; this is the bottom anchor for the restraint.
The R3 Restraint should be properly adjusted on the occupant with the chest strap buckled.