Case CX350C Service Manual
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Case CX350C Service Manual

Case CX350C Service Manual

Crawler excavator
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CX350C
CX380C
Crawler Excavator
SERVICE MANUAL
Part number 47877018
English
July 2015
© 2015 CNH Industrial Italia S.p.A. All Rights Reserved.

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  • Page 1 CX350C CX380C Crawler Excavator SERVICE MANUAL Part number 47877018 English July 2015 © 2015 CNH Industrial Italia S.p.A. All Rights Reserved.
  • Page 2 SERVICE MANUAL CX350C Crawler excavator STD version (TIER 3) - CHINA Market CX380C Crawler excavator LC version (TIER 3) - CHINA Market 47877018 01/07/2015 Find manuals at https://best-manuals.com...
  • Page 3 Contents INTRODUCTION Engine..................10 [10.001] Engine and crankcase ............. 10.1 [10.102] Pan and covers .
  • Page 4 [35.355] Hydraulic hand control ............. 35.8 [35.356] Hydraulic foot control.
  • Page 5 [55.010] Fuel injection system ............. . . 55.9 [55.014] Engine intake and exhaust system.
  • Page 6 INTRODUCTION 47877018 01/07/2015 Find manuals at https://best-manuals.com...

  • Page 7: Table Of Contents

    Contents INTRODUCTION Foreword - Important notice regarding equipment servicing ........3 Safety rules .

  • Page 8: Foreword - Important Notice Regarding Equipment Servicing

    In any case, no warranty is given or attributed on the product manufactured or marketed by the manufacturer in case of damages caused by parts and/or components not approved by the manufacturer.

  • Page 9: Safety Rules

    INTRODUCTION Safety rules Personal safety This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible death or injury. Throughout this manual you will find the signal words DANGER, WARNING, and CAUTION followed by special in- structions.

  • Page 10: Safety Rules - General Information

    Service parts Install CASE CONSTRUCTION genuine service parts. When placing an order, check the parts catalog. It contains the CASE CONSTRUCTION genuine part numbers. Any breakdowns arising from the installation of non-genuine parts are not covered by the warranty. Lubricants (fuel, hydraulic oil) Use the oil from the specified company or specified in the operator's manual or service Manual.

  • Page 11: Safety Rules - Personal Safety

    Check the operating methods in a safe location before starting the actual work. Understand the machine operations well, then operate in compliance with all service-related laws and regulations. The operator's manual can be purchased at your CASE CONSTRUCTION dealer. WARNING: Working with sloppy clothes or clothes with which safety cannot be ensured leads to damage to the machine and injury to the operator.
  • Page 12 INTRODUCTION WARNING: Check that there is no one in the surroundings before draining the pressure from hydraulic circuits during machine hydraulic cylinder inspection. WARNING: Use gloves when handling high-temperature parts. WARNING: Bring the lower parts or attachments in contact with the ground before inspecting or repairing them. WARNING: Check that hoses and tubes are securely connected.

  • Page 13: Safety Rules - Cab Protective Structure

    All modifications (grinding, welding, drilling holes, removing, etc.) are prohibited. Modifications permitted under conditions (gray Removal of parts is prohibited. Bar welding and making holes (up part) to diameter 20 mm (0.787 in)) by drilling are possible. ( CX130C/CX210C/CX220C/CX260C/CX300C/CX350C/CX380C ) SMPH15CEX6544FA 47877018 01/07/2015...

  • Page 14: Torque - Bolt And Nut

    INTRODUCTION Torque – Bolt and nut • Tighten alternating between left and right and top and bottom so that uniform tightening force is applied. LPIL12CX00005EA • If L ® was used on a removed bolt (there is something white sticking to the bolt when it is removed), clean the OCTITE old L ®...

  • Page 15: Torque - Special Torque Setting

    INTRODUCTION Torque – Special torque setting Nominal bolt Retightening location Tightening torque Code Wrench diameter 900 - 1051 N·m (664 - 775 lb ft) Travel motor 36 mm Drive sprocket 521 - 608 N·m (384.27 - 448.44 lb ft) 30 mm Take-up roller 24 mm 267 - 312 N·m (196.93 - 230.12 lb ft)
  • Page 16 INTRODUCTION SMIL14CEX2929HB 47877018 01/07/2015...
  • Page 17 INTRODUCTION SMIL15CEX3370HB 47877018 01/07/2015...
  • Page 18 INTRODUCTION SMIL15CEX3371GB 47877018 01/07/2015...

  • Page 19: Basic Instructions - Shop And Assembly

    Only use CNH Original Parts or CASE CONSTRUCTION Original Parts. Only genuine spare parts guarantee the same quality, duration, and safety as original parts, as they are the same parts that are assembled during standard production. Only CNH Original Parts or CASE CONSTRUCTION Original Parts can offer this guarantee.
  • Page 20 W0111A Special tools The special tools that CASE CONSTRUCTION suggests and illustrate in this manual have been specifically re- searched and designed for use with CASE CONSTRUCTION machines. The special tools are essential for reliable repair operations. The special tools are accurately built and rigorously tested to offer efficient and long-lasting oper- ation.

  • Page 21: General Specification

    INTRODUCTION General specification CX350C Crawler excavator STD version (TIER 3) - CHINA Market APAC Main data Operating weight 34930 kg (77007.47 lb) Engine output 200 kW (271.92 Hp) / 2000 RPM Performance Standard weight 21 kN (4720.988 lb) Swing speed 10.2 RPM...
  • Page 22 INTRODUCTION Oil cooler Fin type Wavy Fin pitch 1.75 mm (0.06890 in) Intercooler Fin type Wavy Fin pitch 2.5 mm (0.09843 in) Fuel cooler Fin type Wavy Fin pitch 2.0 mm (0.07874 in) Upper side work system Type Backhoe attachment Components, dimensions, working dimensions Standard bucket capacity Heaped 1.60 m³...
  • Page 23 INTRODUCTION Hour meter Warning display and warning alarm * has warning alarm OVERHEAT (*) ALTERNATOR (*) ELEC PROBLEM (*) LOW FUEL (*) LOW OIL PRESS. (*) LOW COOLANT (*) ENG. PRE HEAT AUTO WARM UP AIR FILTER (*) SECURITY ON CHECK ENGINE (*) ENGINE STOP (*) Illumination equipment Right front tool 24V 70W x1...
  • Page 24 INTRODUCTION Type Gear pump x 1 Discharge volume 62 l/min (62.000 US gpm) Relief set pressure 20.6 MPa (2988.106 psi) Control valve and cylinder Control valve Quadruple spool + quintuple spool x 1 Model Hydraulic pilot type: Travel, swing, and operating machine Operating method Cylinder No.

  • Page 25: General Specification

    INTRODUCTION General specification CX380C Crawler excavator LC version (TIER 3) - CHINA Market APAC Main data Operating weight 35830 kg (78991.63 lb) Engine output 200 kW (271.92 Hp) / 2000 RPM Performance Standard weight 21 kN (4720.988 lb) Swing speed 10.2 RPM Low speed 3.4 km/h (2.1127 mph) Travel speed...
  • Page 26 INTRODUCTION Oil cooler Fin type Wavy Fin pitch 1.75 mm (0.06890 in) Intercooler Fin type Wavy Fin pitch 2.5 mm (0.09843 in) Fuel cooler Fin type Wavy Fin pitch 2.0 mm (0.07874 in) Upper side work system Type Backhoe attachment Components, dimensions, working dimensions Standard bucket capacity Heaped 1.60 m³...
  • Page 27 INTRODUCTION Hour meter Warning display and warning alarm * has warning alarm OVERHEAT (*) ALTERNATOR (*) ELEC PROBLEM (*) LOW FUEL (*) LOW OIL PRESS. (*) LOW COOLANT (*) ENG. PRE HEAT AUTO WARM UP AIR FILTER (*) SECURITY ON CHECK ENGINE (*) ENGINE STOP (*) Illumination equipment Right front tool 24V 70W x1...
  • Page 28 INTRODUCTION Type Gear pump x 1 Discharge volume 62 l/min (62.000 US gpm) Relief set pressure 20.6 MPa (2988.106 psi) Control valve and cylinder Control valve Quadruple spool + quintuple spool x 1 Model Hydraulic pilot type: Travel, swing, and operating machine Operating method Cylinder No.

  • Page 29: General Specification - Main Equipment

    INTRODUCTION General specification – Main equipment CX350C Crawler excavator STD version (TIER 3) - CHINA Market APAC Lower component Travel unit Manufacturer KYB Corporation Motor type Variable displacement piston motor Automatic 2-speed switchover with parking brake Intake amount 181.3 cm³/rev (11.06 in³/rev) Operating pressure 34.3 MPa (4975 psi)
  • Page 30 INTRODUCTION Upper component Swing unit Swing motor assembly Swing motor Manufacturer Kawasaki Precision Machinery Ltd. Motor type Fixed displacement piston motor With parking brake Intake amount 180.1 cm³/rev (10.99 in³/rev) Operating pressure 30.4 MPa (4410 psi) Operating flow 300 l/min (300.0000 US gpm) Mechanical brake torque 1010.8 N·m (745.528 lb ft) min.
  • Page 31 INTRODUCTION Air cleaner (double element) Nippon Donaldson, Ltd. Manufacturer Element (outer) 12.7 m² Element (inner) 1.74 m² Weight 13 kg (28.6601 lb) Pre_cleaner Rain cap Manufacturer Nippon Donaldson, Ltd. Weight 0.4 kg (0.8818 lb) Pre-cleaner Nippon Donaldson, Ltd. Manufacturer Weight 3.5 kg (7.7162 lb) Pre-cleaner (auto-discharge type) Manufacturer...
  • Page 32 INTRODUCTION Maximum discharge volume 65 l/min (65.00 US gpm) (at 3.4 MPa (493.2 psi) 2000 RPM) 62 l/min (62.00 US gpm) (at 20.6 MPa (2988.0 psi) 2000 RPM) Control-related Control valve Manufacturer KYB Corporation Maximum flow 300 l/min (300.000 US gpm) (at 2000 RPM) Overload set pressure 27.4 MPa (3974 psi) boom down 39.2 MPa (5686 psi) other...
  • Page 33 INTRODUCTION Valve for left/right operations Kawasaki Heavy Industries, Ltd. Manufacturer Operating pressure 3.92 MPa (569 psi) Secondary pressure 0.64 - 2.45 MPa (92.8320 - 355 psi) primary short type 1,3 port 19 ° Operating angle 2,4 port 25 ° Weight 1.9 kg (4.1888 lb) Valve for travel operation Manufacturer...
  • Page 34 INTRODUCTION Travel remote control valve control diagram A. Secondary pressure [MPa (psi)] B. Push rod stroke [mm (in)] C. Pedal operating angle [deg.] Secondary pressure SMIL14CEX0423AB Option remote control valve control diagram A. Secondary pressure [MPa (psi)] B. Operating angle [deg.] Secondary pressure SMIL15CEX1698BB Cushion valve (heat circuit, with shuttle valve)
  • Page 35 INTRODUCTION Port D Backward left Port T Drain port G1/2 Port P Pilot port G1/4 Weight 55.5 kg (122.357 lb) Backhoe attachment Cylinder Boom cylinder Cylinder bore Æ 145 mm (5.709 in) Rod diameter Æ 100 mm (3.973 in) Maximum retracted length 2090 mm (82.283 in) Stroke 1495 mm (58.858 in)

  • Page 36: General Specification - Main Equipment

    INTRODUCTION General specification – Main equipment CX380C Crawler excavator LC version (TIER 3) - CHINA Market APAC Lower component Travel unit Manufacturer KYB Corporation Motor type Variable displacement piston motor Automatic 2-speed switchover with parking brake Intake amount 181.3 cm³/rev (11.06 in³/rev) Operating pressure 34.3 MPa (4975 psi) Operating flow...
  • Page 37 INTRODUCTION Upper component Swing unit Swing motor assembly Swing motor Manufacturer Kawasaki Precision Machinery Ltd. Motor type Fixed displacement piston motor With parking brake Intake amount 180.1 cm³/rev (10.99 in³/rev) Operating pressure 30.4 MPa (4410 psi) Operating flow 300 l/min (300.0000 US gpm) Mechanical brake torque 1010.8 N·m (745.528 lb ft) min.
  • Page 38 INTRODUCTION Air cleaner (double element) Nippon Donaldson, Ltd. Manufacturer Element (outer) 12.7 m² Element (inner) 1.74 m² Weight 13 kg (28.6601 lb) Pre_cleaner Rain cap Manufacturer Nippon Donaldson, Ltd. Weight 0.4 kg (0.8818 lb) Pre-cleaner Nippon Donaldson, Ltd. Manufacturer Weight 3.5 kg (7.7162 lb) Pre-cleaner (auto-discharge type) Manufacturer...
  • Page 39 INTRODUCTION Hydraulic simultaneous constant output control Maximum flow adjustment control through external commands (negative control) Control method Maximum flow adjustment control through external command milli-amp (negative control, front side) Setting horsepower adjustment control through external command milli-amp Dry weight 188 kg (414.4691 lb) With power take-off 205 kg (451.9476 lb) Add-on pump...
  • Page 40 INTRODUCTION Arm-in forced regenerative circuit Swing priority variable orifice 2 pumps flow (external flow merging) Weight 215 kg (473.994 lb) Solenoid valve (4 stack) Manufacturer Yuken Kogyo Co., Ltd. Valve specifications Maximum flow P→B 20 l/min (20.000 US gpm) Other 5 l/min (1.321 US gpm) Rated pressure 4.5 MPa (652 psi) Port size...
  • Page 41 INTRODUCTION A. Secondary pressure [MPa (psi)] B. Push rod stroke [mm (in)] C. Operating angle [deg.] Secondary pressure SMIL14CEX0418AB Travel remote control valve control diagram A. Secondary pressure [MPa (psi)] B. Push rod stroke [mm (in)] C. Pedal operating angle [deg.] Secondary pressure SMIL14CEX0423AB Option remote control valve control diagram...
  • Page 42 INTRODUCTION G1/4 ( Q - V ports) Weight 12.5 kg (27.5578 lb) Center joint Operating pressure High-pressure passage (ABCD) 34.3 MPa (4975 psi) Drain port (T) 1.0 MPa (145 psi) Operating pressure Pilot port (P) 3.9 MPa (566 psi) Flow amount High-pressure passage (ABCD) 360 l/min (360.000 US gpm) Drain port (T)

  • Page 43: Weight

    INTRODUCTION Weight CX350C Crawler excavator STD version (TIER 3) - CHINA Market APAC Divided Weight LPIL12CX00012GB Code Component name Weight Operating weight 34930 kg (77007.468 lb) Upper component (including counterweight and 15030 kg (33135.478 lb) turntable bearing) Counterweight 7420 kg (16358.300 lb) Lower component (with grouser shoe) 12030 kg (26521.610 lb)
  • Page 44 INTRODUCTION * The weights displayed are approximate weights. * Specified amount of water and lubricating oil are included. * The fuel tank is full. Stand alone part weight Weight Component name Travel unit (travel motor + drive sprocket) 501 kg (1104.516 lb) Take-up roller 174 kg (383.604 lb) Upper roller...

  • Page 45: Weight (*)

    INTRODUCTION Weight CX380C Crawler excavator LC version (TIER 3) - CHINA Market APAC Divided Weight LPIL12CX00012GB Code Component name Weight Operating weight 35830 kg (78991.629 lb) Upper component (including counterweight and 15370 kg (33885.050 lb) turntable bearing) Counterweight 7720 kg (17019.687 lb) Lower component (with grouser shoe) 12560 kg (27690.060 lb) Main unit weight...
  • Page 46 INTRODUCTION * The weights displayed are approximate weights. * Specified amount of water and lubricating oil are included. * The fuel tank is full. Stand alone part weight Weight Component name Travel unit (travel motor + drive sprocket) 501 kg (1104.516 lb) Take-up roller 174 kg (383.604 lb) Upper roller...

  • Page 47: Dimension

    INTRODUCTION Dimension CX350C Crawler excavator STD version (TIER 3) - CHINA Market APAC Standard arm [ 3.25 m (10.662 ft)] NOTE: Numbers are subject to change without notice due to design change or other reason. The diagrams give values that include the shoe lug height “a” [ 36 mm (1.417 in)].
  • Page 48 INTRODUCTION Short arm [ 2.63 m (8.628 ft)] NOTE: Numbers are subject to change without notice due to design change or other reason. The diagrams give values that include the shoe lug height “a” [ 36 mm (1.417 in)]. SMIL15CEX5941FA 47877018 01/07/2015...

  • Page 49: Dimension (*)

    INTRODUCTION Dimension CX380C Crawler excavator LC version (TIER 3) - CHINA Market APAC Standard arm [ 3.25 m (10.662 ft)] NOTE: Numbers are subject to change without notice due to design change or other reason. The diagrams give values that include the shoe lug height “a” [ 36 mm (1.417 in)]. SMIL15CEX5942FA 47877018 01/07/2015...
  • Page 50 INTRODUCTION Short arm [ 2.63 m (8.628 ft)] NOTE: Numbers are subject to change without notice due to design change or other reason. The diagrams give values that include the shoe lug height “a” [ 36 mm (1.417 in)]. SMIL15CEX5943FA 47877018 01/07/2015...

  • Page 51: Conversion Factors

    INTRODUCTION Conversion factors Unit conversion rate - x → Gravitational unit SI unit ← ÷ - 9.807 4.448 kgf•cm 0.0981 N•m lbf•ft 1.356 N•m lbf•in 0.113 N•m kgf/cm 0.0981 0.1013 lbf/in 0.0069 mm Hg 133.3 in Hg 3386 kgf・m/s 0.00981 lbf•ft/s 0.00136 0.7355...
  • Page 52 INTRODUCTION Inches to millimeters 1/64 0.3969 17/64 6.7469 33/64 13.0969 49/64 19.4469 1/32 0.7938 9/32 7.1438 17/32 13.4938 25/32 19.8438 3/64 1.1906 19/64 7.5406 35/64 13.8906 51/64 20.2406 1/16 1.5875 5/16 7.9375 9/16 14.2875 13/16 20.6375 5/64 1.9844 21/64 8.3344 37/64 14.6844 53/64...
  • Page 53 INTRODUCTION Miles to kilometers miles miles 　 　 　 　 　 　 ---- 1.609 3.219 4.828 6.437 8.047 9.656 11.265 12.875 14.484 ---- 16.093 17.703 19.312 20.921 22.531 24.140 25.750 27.359 28.968 30.578 32.187 33.796 35.406 37.015 38.624 40.234 41.843 43.452 45.062 46.671...
  • Page 54 INTRODUCTION Square centimeters to square inches 　 　 　 　 　 　 ---- 　 0.155 0.310 0.465 0.620 0.775 0.930 1.085 1.240 1.395 ---- 1.550 1.705 1.860 2.015 2.170 2.325 2.480 2.635 2.790 2.945 3.100 3.255 3.410 3.565 3.720 3.875 4.030 4.185 4.340...
  • Page 55 INTRODUCTION Gallons (U.S) to liters U.S- U.S- .gal. .gal. 　 　 　 　 　 　 liters liters liters liters liters liters liters liters liters liters ---- 3.7853 7.5707 11.3560 15.1413 18.9266 22.7120 26.4973 30.2826 34.0680 ---- 37.8533 41.6386 45.4239 49.2093 52.9946 56.7799 60.5653 64.3506 68.1359 71.9213 10 102.203 105.989 109.774...
  • Page 56 INTRODUCTION Gallons (Imp.) to liters Imp- p.g- .gal. 　 　 　 　 　 　 liters liters liters liters liters liters liters liters liters liters ---- 　 4.5455 9.0909 13.6364 18.1818 22.7273 27.2727 31.8182 36.3636 40.9091 ---- 45.4545 50.0000 54.5455 59.0909 63.6364 68.1818 72.7273 77.2727 81.8182 86.3636 10 100.000 104.545 109.090...
  • Page 57 INTRODUCTION Kilograms to pounds 　 　 　 　 　 　 lbs. lbs. lbs. lbs. lbs. lbs. lbs. lbs. lbs. lbs. ---- 2.205 4.409 6.614 8.819 11.023 13.228 15.432 17.637 19.842 ---- 22.046 24.251 26.456 28.660 30.865 33.069 35.274 37.479 39.683 41.888 44.093 46.297...
  • Page 58 INTRODUCTION Pressure Weight pounds/square inch to weight kilograms/square centimeter lbf/in lbf/in (psi) kgf/cm kgf/cm kgf/cm kgf/cm kgf/cm kgf/cm kgf/cm kgf/cm kgf/cm kgf/cm (psi) ---- 　 0.0703 0.1406 0.2109 0.2812 0.3515 0.4218 0.4921 0.5624 0.6327 ---- 0.7030 0.7733 0.8436 0.9139 0.9842 1.0545 1.1248 1.1951...
  • Page 59 INTRODUCTION Kilopascals to weight kilograms/square centimeter 　 　 　 　 　 　 kgf/cm kgf/cm kgf/cm kgf/cm kgf/cm kgf/cm kgf/cm kgf/cm kgf/cm kgf/cm ---- 　 1.020 2.039 3.059 4.079 5.099 6.118 7.138 8.158 9.177 ---- 1000 10.197 11.217 12.237 13.256 14.276 15.296 16.315 17.335...
  • Page 60 INTRODUCTION Weight kilogram meters to Newton meters kgf·m kgf·m 　 　 　 　 　 　 N·m N·m N·m N·m N·m N·m N·m N·m N·m N·m ---- 9.81 19.61 29.42 39.23 49.03 58.84 68.65 78.45 88.26 ---- 98.07 107.87 117.68 127.49 137.29 147.10 156.91...
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