Avery Dennison Mobile Work Station (MWS) Monarch 9876 Operating & Maintenance Instructions page 24

Make sure the ground wires are attached using one M5 screw with two M4
nuts and M4 washers as shown.
Battery
Strap
Battery
Support
Ground Wires
This equipment contains components which can produce arcs
or sparks. To prevent fire or explosion, do not install near
Flammable materials or in locations that require
ignition-protected equipment (including gasoline-powered
4-4 Power Options
WARNING
machinery, fuel tanks, joints, or fittings).