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6.1.A. - Page 21 <br />CITY AND COUNTY OP SAN FRANCISCO 1 1 <br />1_1SE11000009 <br />T SF110005821CD <br />EQUIPMENT SPECIFICATION VOh <br />DIESEL POWFRIED 7.3 CUBIC YARD VOLUMETRIC C APACITY <br />MUNICIPAL. STREET SWEEPER SPEC IFICA't IONS <br />a <br />(WITH DUAL. GUTTED BROOMS 8t DUAL STEERING) <br />REVISION DATE 04/01/1 dpw <br />410 �� Hopper shall have Polibrid 705 minimum of 50.00 dry mils- protective coating for easy clean <br />411 r out and protection. No exceptions allowed., <br />412 A stainless steel limb guard shall be mounted on the curb side of the unit to deflect tree <br />413 branches. <br />414 i A frame rnormted sensor with audible and visual indicators in cab that signals full load shall <br />415 be furnished. <br />416 <br />417 HYDRAULIC SYSTEM: <br />418 &,,Tile hydraulic system shall be adequate for use within the design requirements of the <br />419 sweeper. The system shall include a minimum 25 gallon reservoir, sight gauge, <br />420 temperature gauge, 80 mesh suction strainer, spin -on replaceable full flow oil filter, <br />421 hydraulic cylinders, gutter broorn drive motors, control valves, relief valves, oil cooler, <br />422 hydraulic hoses and standard fittings. <br />42.3 The hydraulic pump shall be engine mounted, gear driven by the auxiliary engine. <br />424 _ * Pressrare shall be 2500 PSI maximum for gutter brooms and 1500 PSI maximurn%for pick -up <br />425 head and dump door. <br />426 Auxiliary hydraulic system shall be furnished to electrically operate the hydraulic system <br />427 without auxiliary engine running. <br />428 <br />429 BL <br />430 4 1,EX Heavy -duty, wear resistant, high strength cast aluminum alloy turbine type open face Blower <br />431 computer balanced within 4 grams shall be provided to create air pressure and suction. <br />432 Blower wheel shall be covered with wear resistant rubber for long life. <br />433 Blower shall be mounted on self - aligning antifriction bearings, sealed and lubricated for life. <br />434 If bearings are not sealed, then an automatic tube system must be furnished. <br />435 Blower shall be driven from PTO off auxillary engine by heavy -duty power belt, which shall <br />436 ° be adjustable for tension. <br />437. Blower housing shall be a -bolt on design and shall be lined with a bolt - we <br />resistant, <br />438 replaceable rubber liner for long life. <br />439 _9 Blower shall not exceed 3000 RPM to Insure smooth efficient performance. <br />440 ` <br />441 PICK -UP HEAD: <br />442 S A spring balanced all steel fabricated pick -up head with maximum length and width of 87" x <br />443 30" I .-D. shall be provided. <br />444 _9�E The pick -up head shall have a separate upper and lower chamber where pressurized air is <br />445 blasted from upper chamber through an elongated blast orifice to street surface. <br />446 Blast orifice flange.shall be of bolt =on design so that flange is easily replaced and shall have <br />447 slots so that blast orifice gap is easily adjusted without removing pick -up head from <br />448 sweeper. <br />449 , Pick -up head shall have a 14" diameter (minimum) pressure inlet ring located on left side of <br />450 pick -up head. <br />! i t Of 20 <br />(•AINel Ar"m;,mblppDIVIA l vaK1 rmpbi ICxplititili Orgsc1101N1 rmtil:.S'11 31Cp llixl (000I.III. I Ld"r <br />