{"product_id":"sumitomo-best-sh125x-3-sh135x-service-repair-workshop-manual-511695","title":"Sumitomo Best SH125X 3 SH135X Service Repair Workshop Manual","description":"\u003cp\u003eThis is the COMPLETE Service and Repair Manual for the Sumitomo Best SH125X 3 SH135X Service Repair Workshop Manual. It covers every single detail.\u003c\/p\u003e\n\u003cp\u003eSumitomo Best SH125X-3 SH135X Service Repair Workshop Manual PDF\nVEHICLE\/EQUIPMENT INTRODUCTION:\nThe Sumitomo SH125X-3 and SH135X represent the third generation of Sumitomo hydraulic excavators in the 12-13 ton operating class. Sumitomo Construction Machinery has a long-standing reputation for building reliable, fuel-efficient hydraulic excavators that excel in urban construction, utility work, and general earthmoving. The X-3 series features a refined cab with improved ergonomics, a fuel-efficient Isuzu diesel engine meeting Tier 3\/Stage IIIa emissions standards, and the advanced SPATEC electronic control system that optimizes hydraulic flow for smooth, precise digging and lifting. These excavators are equipped with a powerful boom and arm combination, a generous bucket capacity, and an auto-deceleration system that reduces fuel consumption during idle periods. The SH125X-3 and SH135X are popular choices for rental fleets, small contractors, and municipal public works departments.\nSERVICE \u0026amp; REPAIR SCOPE:\n- Isuzu diesel engine overhaul including cylinder head, injector, and turbocharger service\n- Fuel system diagnostics: high-pressure pump testing and injector coding\n- Hydraulic main pump flow testing and regulator valve adjustment\n- Control valve spool inspection and load-sensing signal circuit testing\n- Travel motor overhaul with piston and barrel inspection\n- Swing motor and swing reduction gear service with backlash setting\n- Boom, arm, and bucket cylinder rebuild with seal kit installation\n- Relief valve calibration for boom, arm, bucket, swing, and travel circuits\n- Auto-deceleration motor and electronic control module diagnostics\n- Undercarriage service: track tension adjustment, idler replacement, roller inspection\n- Hydraulic oil cooler cleaning and radiator pressure testing\n- Operator cab HVAC service with refrigerant system repair\n- Alternator and starter overhaul with output verification\n- Safety lock solenoid circuit testing and diagnostic code retrieval\nTECHNICAL SPECIFICATIONS:\n- Engine: Isuzu diesel, Tier 3\/Stage IIIa\n- Operating weight: approximately 12-13 metric tons\n- Hydraulic pump: Variable displacement axial piston\n- Max hydraulic flow: Check manual for specifications\n- Travel speed: Two-range hydrostatic drive\n- Swing system: Axial piston motor with planetary reduction\n- Undercarriage: Track shoe with carrier and lower rollers\n- Bucket breakout force: See manual for SH125X-3 and SH135X specifications\nDIAGNOSTIC INFORMATION:\n- Excavator lacks digging power: test main pump pressure at relief, inspect control valve spool wear, check engine RPM under load\n- Slow swing speed: inspect swing motor case drain flow, verify swing relief valve setting, examine swing bearing gear wear\n- Track drive pulls to one side: check travel motor output, test counterbalance valve, inspect final drive planetary gear\n- Hydraulic oil runs hot: clean cooling core, inspect relief valve bypass, verify correct oil viscosity for ambient temperature\n- Eng\u003c\/p\u003e\n\u003cp\u003eInstant download — no shipping, no waiting. Access it right away and use it as many times as you need.\u003c\/p\u003e","brand":"Sumitomo","offers":[{"title":"Default Title","offer_id":68003514318999,"sku":null,"price":16.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0651\/1788\/0471\/files\/4_Construction_Icon.800x800_3f11dd58-d8ab-4bd6-945d-c4551f429715.jpg?v=1791098025","url":"https:\/\/agriculturemanual.com\/products\/sumitomo-best-sh125x-3-sh135x-service-repair-workshop-manual-511695","provider":"agriculturemanual.com","version":"1.0","type":"link"}