DENVER -- The city of Denver gave its ok for the use of all escalators at Coors Field at tonight's Colorado Rockies game, except for a malfunctioning escalator that injured more than two dozen people last month. A Rockies spokesman said later, however, that the escalators won't be running.

All of the escalators at Coors Field have been shut down since the July 2 accident, when the three-story escalator near Gate C suddenly began to accelerate and scores of people were sent speeding and tumbling to the bottom. At least 35 people were injured as a result.

Kone Inc., the company that makes and maintains the escalators, said the accident was caused by overloading and misconnected wiring in the braking system. The company said the combination caused the escalator to speed up beyond what the brakes could handle after a sold-out Colorado Rockies game and fireworks show.

City inspectors, however, said that Kone's explanation is inadequate. City crews believe that there was an eight-tenths of a second delay in the braking system and are trying to find out if weight might have been a factor as well. The city says the escalator brakes should have been set at 400 to 600 foot-pounds of torque, according to the brake manufacturer's recommendation. The city's tests showed one brake was set at 200 foot-pounds of torque and the other at 220 foot-pounds.

The Rockies have disputed Kone's statement that overloading contributed to the accident and said that Kone never warned that it was a possibility.

Investigators say it will take several more tests to determine exactly what caused the escalator to fail.

The Rockies said Tuesday that even though the city had signed off for use of the escalators, the team decided against using them.