{"product_id":"hitachi-zaxis-27u-30u-35u-excavator-service-repair-manual","title":"Hitachi Zaxis 27U, 30U, 35U Excavator Service Repair Manual","description":"Format : PDF\u003cbr\u003eSUPPLIED AS DOWNLOADABLE LINK\u003cbr\u003e\u003cbr\u003eHitachi Zaxis 27U, 30U, 35U Excavator Manual:\u003cbr\u003eTechnical Manual: Vol No. T1LAE – 261 Pages\u003cbr\u003eWorkshop Manual: Vol No. W1LAE – 447 Pages\u003cbr\u003eHydraulic Schematics: 6 Pages\u003cbr\u003e\u003cbr\u003eDescription\u003cbr\u003eHitachi Zaxis 27U, 30U, 35U Excavator Manual\u003cbr\u003eExcavator Model\u003cbr\u003e: 27U, 27U-1, 30U, 30U-1, 35U, 35U-1\u003cbr\u003eEnglish\u003cbr\u003eFormat: PDF\u003cbr\u003eHitachi Zaxis 27U, 30U, 35U Excavator Manual:\u003cbr\u003eTechnical Manual: Vol No. T1LAE – 261 Pages\u003cbr\u003eWorkshop Manual: Vol No. W1LAE – 447 Pages\u003cbr\u003eHydraulic Schematics: 6 Pages\u003cbr\u003eManual Table of Content:\u003cbr\u003eWorkshop Manual Covers:\u003cbr\u003eSafety\u003cbr\u003eGeneral Information\u003cbr\u003eUpperstructure\u003cbr\u003eUndercarriage\u003cbr\u003eFront Attachment\u003cbr\u003eEngine\u003cbr\u003eTechnical Manual Covers:\u003cbr\u003eGeneral\u003cbr\u003eSystem\u003cbr\u003eComponent Operation\u003cbr\u003eOperational Performance Test\u003cbr\u003eTroubleshooting\u003cbr\u003eManual Extract: PARKING BRAKE\u003cbr\u003eThe parking brake is a wet-negative-type single disc brake which is released only when the brake release pressure oil is routed into the brake piston chamber.\u003cbr\u003eWhen releasing the brake:\u003cbr\u003eWhen the pilot control shut-off lever is in the UNLOCKED position, the pilot shut-off switch is ON. By this action, the pilot shut-off valve solenoid valve is ON, so that the brake release pressure (pilot pressure) is guided to the brake piston chamber to push the brake piston upward, allowing the brake piston and the disc plate contact to free which releases the brake.\u003cbr\u003eWhen the brake is applied:\u003cbr\u003eWhen the pilot control shut-off lever is in the LOCKED position, the pilot shut-off switch is OFF.\u003cbr\u003eBy this action, the pilot shut-off valve solenoid valve is OFF, so that the brake release pressure (pilot pressure) is not guided to the brake piston chamber.\u003cbr\u003eThe brake release pressure oil in brake piston chamber flows back to the hydraulic oil tank via the pilot shut-off valve solenoid valve.\u003cbr\u003eAccordingly, by the spring, the brake piston gradually moves downward, allowing the brake piston to slowly come in contact with the disc plate to make the swing brake applies","brand":"Uploader","offers":[{"title":"Default Title","offer_id":53601560101195,"sku":null,"price":59.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0978\/2519\/4315\/files\/1-54-600x766.jpg?v=1760443219","url":"https:\/\/manualbull.com\/products\/hitachi-zaxis-27u-30u-35u-excavator-service-repair-manual","provider":"ManualBull","version":"1.0","type":"link"}