Page 14 | Stellar
®
7630 Telescopic Crane Owner’s Manual PN: 106864
Electrical Circuit Grounding
When installing the crane, 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. Never use
the mechanic body as a ground source. Make sure the electrical grounds are routed to either the chassis
frame rail or the chassis’s main grounding source.
Stellar provides a stud (PN 40992) for grounding the crane to the chassis frame rail:
• Hole size: 21/64”
• The hole location should allow for the shortest length of ground wire while keeping enough slack for
exibility.
• Be sure to grind the frame rail around the hole to ensure a proper ground connection.
• Frame rail thickness may require additional at washers (as shown).
• Use an electrical coating on hardware to prevent corrosion.
Inside Frame Rail
Outside Frame Rail
WARNING
Drill the hole to the frame rail in accordance with the chassis body
builder’s guide.
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