Section 296-96-11045. What drive machine requirements apply to belt manlifts?

(1) Belt manlifts must be driven either by directly connected machines or by multiple "V" belts.

(2) Cast iron gears must not be used.

(3) Brakes:

(a) On direct connected machines, the brake must be mechanically applied to the motor shaft and released electronically.

(b) On "V" belt driven machines, the brake must be mechanically applied to the input shaft and released electronically.

(c) All brakes must be capable of stopping and holding the lift while carrying its rated capacity.

(4) Belts:

(a) Belts may not have more than one splice per belt.

(b) There shall not be more than one inch of space between the opposing ends of the belt.

(c) A belt manlift that has evidence of severe belt damage must be removed from service immediately. Belts with severe belt damage may not be repaired and/or returned to service. "Severe belt damage" means that the protective outer cover of a belt becomes cut, cracked or separated exposing damaged inner fabric, and such damage extends across the full width of the belt, spans between adjacent bolt holes, or damage goes through the entire thickness of the inner fabric. A torn belt is also considered severe.

Exception: A lap splice that has become cracked or damaged may be converted to a butt splice and returned to service, provided that the damaged area on the splice is completely removed.

(d) The conversion of a lap splice to a butt splice does not constitute a repair.

(e) A belt that has evidence of superficial belt cover damage while in use on a manlift is not required to be replaced. "Superficial belt cover damage" means that the protective outer cover of a belt becomes scratched, cut or cracked exposing the inner fabric. Such damage may not be continuous across the full width of the belt.

(5) Belts fastening:

(a) Belts must be fastened either by a lap splice or a butt splice with a strap on the belt side opposite the pulley.

(b) For lapped splices on manlifts with travel distances not exceeding 100 feet, the overlap of the belt at the splice must be at least 3 feet; or

(c) For lapped splices exceeding 100 feet, the overlap at the splice must be at least 4 feet.

(d) For butt splices on manlifts with travel distances not exceeding 100 feet, the strap must extend at least 3 feet on one side of the butt; or

(e) For butt splices not exceeding 100 feet, the strap must extend at least 4 feet on one side of the butt.

(f) For 12-inch belts, the joint must be fastened with a minimum of 20 special elevator bolts with minimum diameters of 1/4 inch. To effectively cover the belt joint area, these bolts must be arranged symmetrically in 5 rows.

(g) For a 14-inch belt, the minimum number of bolts is 23.

(h) For a 16-inch belt, the minimum number of bolts is 27.

(6) All installations must use machines designed and constructed to hold the driving pulley when there is shaft failure or overspeed.

[Statutory Authority: RCW 70.87.020, 70.87.030, 70.87.034, 70.87.120, 70.87.185, 70.87.190, 2002 c 98, 2003 c 143 and 2004 c 66. WSR 04-12-047, § 296-96-11045, filed 5/28/04, effective 6/30/04. Statutory Authority: RCW 70.87.020, 70.87.030, 70.87.034, 70.87.120, 70.87.185 and chapter 70.87 RCW. WSR 01-02-026, § 296-96-11045, filed 12/22/00, effective 1/22/01.]

RCW 70.87.020, 70.87.030, 70.87.034, 70.87.120, 70.87.185, 70.87.190, 2002 c 98, 2003 c 143 and 2004 c 66. WSR 04-12-047, § 296-96-11045, filed 5/28/04, effective 6/30/04. Statutory Authority: RCW 70.87.020, 70.87.030, 70.87.034, 70.87.120, 70.87.185 and chapter 70.87 RCW. WSR 01-02-026, § 296-96-11045, filed 12/22/00, effective 1/22/01.