30SG OPERATOR’S MANUAL 4/23/19 Page 14 of 23
DETERMINE LOCATION OF UNDERGROUND UTILITIES
OSHA CFR 29 1926.651 requires that the estimated location of underground utilities be determined before
beginning excavation or an underground drilling operation. When the actual excavation or bore approaches
an estimated utility location, the exact location of the underground installation must be determined by a
safe, acceptable and dependable method. If any utility cannot be precisely located, the appropriate utility
company must shut it off.
Call before you cut.
If you do not call, you may cause an accident; suffer injuries or death; cause
interruption of services; damage the environment; and/or incur project delays. Expect to be held liable for
any damages caused, if you fail to call.
DANGER
: Buried electric cables or gas lines can cause serious injury or death if struck with cutter
wheel. Always determine location of utilities before operating the machine.
WARNING
: Fiber optic cables convey laser light that can injure your eyesight.
To locate utilities before beginning your grinding project, call 811 or 1-888-258-0808 (US. or Canada).
This free service will provide a “One-Call” number for the geographic area that you select. Before you start
any cutting project, be sure to call the local One-Call system in your area and any utility company that does
not subscribe to the One-Call system. The One-Call representative will notify participating utility
companies of your proposed cutting activities. Utilities will then mark their underground facilities by using
the following international marking codes:
Red
Electric
Yellow
Gas, oil, or petroleum
Orange
Communication, telephone, television
Blue
Potable water
Green/brown Sewer
White
Proposed excavation
Pink
Surveying
For areas not represented by One-Call Systems International, contact the appropriate utility companies to
locate and mark the underground installations. Do not rely on visual evidence of underground utilities such
as manhole covers or electrical drop boxes…
CALL!
