A lane maintenance machine has a cleaning system that includes at least one liquid dispensing head that reciprocates back and forth transversely of the lane as the machine travels along the length of the lane. The dispensing head includes a dispensing tip therein that emits a pin deck treatment product and applies it to a pin deck. The system provides accurate, precise metering of the pin deck treatment liquid and affords board-by-board control of the dispensing action. A wiping assembly immediately behind the dispensing head provides a web of cloth-like material looped under a compressible backup roller to wipe or smear the applied liquid. In a preferred embodiment, the dispensing head is a double head, and it includes a second tip for dispensing a cleaning solution so that pin deck treatment can take place with the same piece of equipment, after lane cleaning has taken place, making the entire process automated.