10.4 The blower housing shall be constructed of 10 □ □ gauge steel and lined with Linatex (or equal) for maximum extended wear in abrasive environments. 10.5 Blower housing shall have an inspection door □ □ for quick inspections without removing the blower housing or looking into the air exhaust opening. 10.6 Blower housing shall not be an integral part of □ □ the hopper. Should the replacement of the blower housing be necessary it shall be possible without any cutting and/or welding of the housing and or hopper. 10.7 The blower shall be mounted and supported on □ □ both sides by heavy-duty grease-able bearings. Greasing of the bearings must be possible from ground level, without tilting the hopper. Non- grease-able bearing are not acceptable. 10.8 The blower must not be directly exposed or □ □ open to the dust separator to preclude carry-over of material from the separator into the blower and blower housing. 10.9 A flow blocker shall be provided. The flow □ □ blocker will engage when sweeper is put into reverse or sweep mode is disengaged. It must also have an in cab switch for operator to engage at any time 11. Pickup Head 11.1 The pickup head is a spring-balanced, all steel □ □ fabricated pickup head with separated upper and lower chambers where pressurized air is blasted from the upper chamber through an elongated blast orifice, to the lower vacuum chamber. 11.2 The pickup head shall be not less than 90 □ □ inches wide and 30 inches long for a total area of 2700 square inches.
10.4 The blower housing shall be constructed of 10 gauge steel and lined with Linatex (or equal) for maximum extended wear in abrasive environments. □ □ 10.5 Blower housing shall have an inspection door for quick inspections without removing the blower housing or looking into the air exhaust opening. □ □ 10.6 Blower housing shall not be an integral part of the hopper. Should the replacement of the blower housing be necessary it shall be possible without any cutting and/or welding of the housing and or hopper. □ □ 10.7 The blower shall be mounted and supported on both sides by heavy-duty grease-able bearings. Greasing of the bearings must be possible from ground level, without tilting the hopper. Non- grease-able bearing are not acceptable. □ □ 10.8 The blower must not be directly exposed or open to the dust separator to preclude carry-over of material from the separator into the blower and blower housing. □ □ 10.9 A flow blocker shall be provided. The flow blocker will engage when sweeper is put into reverse or sweep mode is disengaged. It must also have an in cab switch for operator to engage at any time □ □ 11. Pickup Head 11.1 The pickup head is a spring-balanced, all steel fabricated pickup head with separated upper and lower chambers where pressurized air is blasted from the upper chamber through an elongated blast orifice, to the lower vacuum chamber. □ □ 11.2 The pickup head shall be not less than 90 inches wide and 30 inches long for a total area of 2700 square inches. □ □