Stellar
®
TMAX™ Owner’s Manual | Page 15
Electrical Circuit Grounding
When installing product which requires 12 volt power to operate the equipment, always
locate a good source for grounding the circuit. A majority of electrical failures are due
to poor grounding. Poor grounding can cause intermittent operation of the equipment,
electrical component failures and cause the equipment to not operate at all. Chassis
manufacturers usually will have a ground strap which ties into the truck frame from the
battery, but it is always a good idea to check each individual model to verify where the
ground is located. If you are installing a body onto the chassis, never use the body as a
ground source. If you add a crane or compressor to the body make sure the electrical
grounds are routed to either the chassis frame or the chassis’s main grounding source.
Welder Installation
When installing welders on Stellar® Mechanic body packages it is highly recommended
that you install an electrical surge protector to the chassis battery. If the electrical surge
protector is not installed on to the battery, your customer could experience failures to the
Chassis wiring circuit and also to the Stellar Mechanic body package wiring circuits. This
electrical surge protector will help protect the Chassis ECM (Electronic Control Module),
Transmission TCM (Transmission Control Module) and the Crane Radio Remote system
against any electrical surges or spikes caused by poor grounding or from operators using
the rear work bench bumper as a welding area.
