Safety 1st Advancer Manual do Operador descarregar pdf (Página 72)

Environmental Remediation Drilling

Safety Guideline

Page 72 of 132

4.10.1 - Wire Rope Safety cont.

Listed below are guidelines regarding wire ropes and hoists:

• Always wear the appropriate gloves when handling wire ropes.

• Minimize shock loading on wire rope, apply loads smoothly and steadily.

• Protect wire rope from sharp corners or edges.

• Do not guide wire ropes onto cable drum with your hands.

• Discard cable when kinked or frayed.

• Thoroughly inspect all wire ropes that have not been used for a period of a month or more.

• Install all connections and end fittings, which consist of spliced eyes and various manufactured devices,

according to the manufacturer's specifications.

• If a ball bearing type hoisting swivel is used to hoist drill rods, inspect and lubricate swivel bearing daily

to assure that the swivel freely rotates under load.

• If a rod slipping device is used to hoist drill rods, do not drill through or rotate drill rods through the

slipping device, do not hoist more than 1 ft. (0.3 m) of the drill rod column above the top of the mast, do

not hoist a rod column with loose tool joints, and do not make, tighten, or loosen tool joints while the

rod column is being supported by a rod slipping device. If drill rods should slip back into the borehole,

do not attempt to break the fall of the rods by hand or by tensioning the slipping device.

• Most sheaves on drill rigs are stationary with a single part line.

• Never increase the number of parts of line without first consulting with the manufacturer of the drill rig.

• Wire ropes must be properly matched with each sheave. If the rope is too large, the sheave will pinch the

wire rope. If the rope is too small, it will groove the sheave. Once the sheave is grooved, it will severely

pinch and damage larger sized wire ropes.

• Following the installation of a new wire rope, first lift a light load to allow the wire rope to adjust.

• Use replacement wire ropes that conform to the drill rig manufacturer's specifications.

• Apply loads smoothly and steadily to minimize shock loading of a wire rope.

• There should be at all times at least three wraps of hoisting line on the hoist drum to prevent a line load

from being applied directly to the fastening clamp

DANGER!

Do not subject a cable to shock load. Rapidly engaging and disengaging the hoist while

attached to a load puts an enormous strain on the cable and may lead to catastrophic

failure.

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Safety 1st Advancer Manual do Operador Página 72