| 摘要 |
A pavement cutting machine (30) having a rotary cutting wheel (34) which is controlled by a clutch (32) on either the drive shaft (92) of the engine or a driven shaft (84) of the cutting wheel (34) with activation by a deadman's switch (36). The machine (30) also includes a stand (40) that enables the entire machine (30) to be tipped forwardly about its support wheels (44) to expose the cutting wheel (34) so it can be serviced. The clutch (32) preferably is an electromagnetic clutch mounted to the engine drive shaft (92) that is selectively energized by a deadman's switch (36) on a handle (46) of the machine (30) that is constructed and arranged to close upon an operator (48) gripping handle grips (120) of the handle (46). When energized or engaged, a pulley (86) of the clutch (32) rotates in unison with the drive shaft (92). When the handle grips (120) are released, the clutch (32) is deenergized or disengaged, decoupling the cutting wheel (34) from the engine (90).
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