Hole Plugs are provided for front and rear panel control lockout.
Control knobs may be removed and the front panel holes plugged to prevent the operator from changing the settings.

Additional information available in the User Guides GR2 GR05 GR8A

To order replacements, please contact your dealer or local distributor
quoting part no. AK3174 [HOLE PLUG NYLON 9.5MM]