Or. Admin. Code § 437-007-0610

Current through Register Vol. 64, No. 1, January 1, 2025

Section 437-007-0610 - Line Cutting and Splicing

(1) Hard hammers must not be used when splicing or cutting wire rope with a wire axe.

(2) Eye protection must be used when cutting lines.

(3) Marlin spikes (needles) must be used when splicing.

(4) Short splices, eye-to-eye splices, cat's paws, and knots are prohibited except when used to move nonload-bearing lines.

(5) Knots may be used on single drum tractor winch lines, grapple pickup lines and carriage droplines when the knot is tied on the end of the dropline/pickup line. The knot must be pulled as tight as possible and the ends trimmed in accordance with Table 7-2.

(6) Eye splices in wire rope 1/2-inch or less in diameter must be tucked at least two times when used as haywire (strawline).

(7) Eye splices in all regular lay lines and straps must be tucked at least three times.

(8) Eye splices in lang lay lines must be tucked at least four times.

(9) When flemish (rolled) eye splices are used on load bearing lines, the strand ends must be secured by:

(a) Hand tucking each strand three times; or

(b) Applying a compression fitting (pressed eye fittings).

(10) Log splices must be used for permanently joining regular lay running line.

EXCEPTION: When using mechanical slack pulling carriages, jump splices may be used to connect the main and slack pulling lines, and tucked splices may be used to attach drop lines to main lines only if the:

1. Crew members are notified of the splices being used.

2. Yarder boom sheaves are of the Tommy Moore type.

3. Splices are on the yarder side of the carriage.

4. Lines are arranged so splices do not go through the carriage.

5. Spliced strands are trimmed at 6 inches.

6. Splices are inspected at least once daily for signs of excessive wear or failure.

7. Defective splices are immediately repaired (spliced) or removed from service.

8. Jump splices connecting main and slack pulling lines are between 30 inches and 48 inches long and tucked at least three times.

9. Splices attaching drop lines to main lines are tucked at least three times.

(11) Follow Table 7-1 for the length of line strand to unravel to make a long splice in wire rope. The full length of the splice must be twice the length of the unraveled rope.

Table 7-1 -- Length of Wire Rope to Unravel When Long Splicing [Table not included. See ED. NOTE.]

(12) Wire strand ends must be trimmed to the length shown in Table 7-2.

Table 7-2 -- Trimmed Length For Wire Rope Strand Ends [Table not included. See ED. NOTE.]

Or. Admin. Code § 437-007-0610

OSHA 5-2003, f. 6-2-03, cert. ef. 12-1-03

Tables referenced are available from the agency.

Stat. Auth.: ORS 654.025(2) & ORS 656.726(4)

Stats. Implemented: ORS 654.001-654.295