Part of the Case Repair Manuals.
Engine internals on the Yanmar 3TNV88F-ESHYB are covered: cylinder heads, valve clearance, connecting rods and pistons, crankshaft and flywheel, plus the fuel injection pump with fuel injector pressure and the injection timing method. The torque figures for the cylinder head, connecting rod and main bearing cap bolts are printed in the engine section.
The book then covers the variable displacement pump, the main control valve and its relief valves, and the pilot circuit. Swing and travel motors, the central joint and the undercarriage idler wear limits follow, then electrical schematic sheets 01-15 and the SPN-FMI fault code index.
The manual is Case part number 48127449 and covers both the cab and canopy CX37C with the Tier IV final engine. Each system has its own section, so you can go straight to the travel motor charts or the alternator test.
What's Inside This Case CX37C Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction and Machine Data | 1-50 | Safety Rules, Standard and Special Torque Settings, Machine Specifications, Weights, Dimensions, Working Range, Conversion Tables, Fluids and Lubricants, Product Identification |
| Engine and Crankcase | 51-107 | Engine Diagnosis, Service Limits, Compression Pressure Measurement, Engine Torque for Special Use, Engine Troubleshooting Chart, Crankcase |
| Valve Drive, Cylinder Head, Pistons and Crankshaft | 108-157 | Valve Drive and Gears, Cylinder Heads and Valve Clearance, Connecting Rods and Pistons, Crankshaft and Flywheel |
| Fuel System, Air Intake and EGR | 158-217 | Fuel Tanks, Fuel Filters, Fuel Injection System with Injector Pressure and Injection Timing, Air Cleaners, Exhaust Gas Recirculation |
| Engine Cooling and Lubrication | 218-254 | Engine Cooling System, Fan and Drive, Engine Lubrication System |
| Hydraulic System Overview | 255-303 | Hydraulic Circuit Description, Hydraulic Schematic, Releasing Pressure, Hydraulic Troubleshooting |
| Variable Displacement Pump | 304-337 | Main Pump, System Pressure Regulator Relief Setting, Pump Troubleshooting |
| Main Control Valve | 338-389 | Main Control Valve Ports and Tightening Torques, Main and Overload Relief Valves, Troubleshooting |
| Pilot System and Hand and Foot Controls | 390-465 | Pilot System, Hydraulic Hand Control, Hydraulic Foot Control |
| Hydraulic Swing System | 466-515 | Swing Motor and Swing Reduction Gear, Swing Troubleshooting |
| Hydraulic Travel System and Central Joint | 516-599 | Travel Motor and Reduction Unit, Travel Motor Troubleshooting, Hydraulic Central Joint |
| Boom, Dipper, Bucket, Swing Arm and Dozer Hydraulics | 600-676 | Boom Hydraulic System Troubleshooting, Dipper and Bucket Hydraulics, Swing Arm Hydraulics, Dozer Blade Cylinders, Hydraulic Lines |
| Frames and Ballasting | 677-686 | Ballasts and Supports |
| Tracks and Track Suspension | 687-732 | Track Frame and Driving Wheels, Tracks, Track Tension Units and Service Limits, Track Rollers |
| Electrical System | 733-793 | Electrical Component Identification, Electrical System Layout, Engine Diagnostic Connector |
| Harnesses, Connectors and Electrical Schematic Sheets | 794-939 | Electrical Schematic Sheets 01-15 (Power Distribution, Grounding, Engine Controller), Connectors, Harness Routing |
| Cab Engine Controls and Engine Control System | 940-957 | Speed Control Switch, Engine Control System, Engine Fault Code Index (Spn-Fmi) |
| Starting System, Alternator and Battery | 958-1007 | Engine Starter, Alternator and Battery Testing and Troubleshooting |
| Engine Sensors, Cab Controls, Wipers, Lighting and Warnings | 1008-1080 | Fuel Tank System, Intake and Exhaust, Cooling and Oil System Sensors, Instrument Cluster, Cab Controls, Lever Lock Solenoid, Wiper and Washer, External and Cab Lighting, Warning Indicators |
| Booms, Dippers, and Buckets | 1081-1118 | Boom Pivoting Support, Boom, Dipper Arm, Bucket |
| Platform, Cab, Bodywork, and Decals | 1119-1137 | Engine Hood and Panels, Machine Shields and Guards |
| Fold-Out Electrical and Hydraulic Schematics | 1138-1140 | Electrical Schematic CX33C-CX37C 48125605EN, Hydraulic Schematic CX33C-CX37C 48125599EN |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Engine | Yanmar 3TNV88F-ESHYB | p. 20 |
| Engine type | 3 cylinders, in-line, 4-cycle vertical overhead valve, diesel fuel | p. 20 |
| Piston displacement | 1642 cm³ (100.2 in³) | p. 20 |
| Rated gross horse power (SAE J1995) | 18.2 kW (24.7 Hp) at 2200 RPM | p. 20 |
| Main pump | Variable displacement tandem axis piston pumps, 2 x 37.4 L/min (9.9 US gpm) | p. 20 |
| Main relief valve pressure P1, P2 / P3 | 20105 - 22553 kPa (2916 - 3271 psi) | p. 20 |
| Overload relief valve pressure | 24518 kPa (3556 psi) | p. 20 |
| Swing / travel motor relief pressure | 19616 kPa (2845 psi) swing / 22553 kPa (3271 psi) travel | p. 21 |
| Operating weight (cab / canopy version) | 3760 kg (8289 lb) cab / 3620 kg (7981 lb) canopy | p. 23 |
| Fuel tank | 40 L (10.6 US gal) | p. 42 |
| Engine oil | 6.7 L (1.8 US gal), SAE 15W-40 | p. 42 |
| Engine coolant | 5 L (1.3 US gal) | p. 42 |
| Hydraulic oil tank | 37 L (9.8 US gal) | p. 42 |
| Hydraulic system total capacity | 60 L (15.9 US gal) | p. 42 |
| Travel reduction unit oil | 0.5 L (0.13 US gal) x2, SAE 80W90 | p. 42 |
| Intake/exhaust valve clearance | 0.150 - 0.250 mm (0.006 - 0.010 in) | p. 65 |
| Compression pressure at 250 RPM | 3.33 - 3.53 MPa (483.02 - 512.03 psi), limit 2.65 - 2.85 MPa (384.38 - 413.39 psi) | p. 65 |
| Cylinder head bolt torque (M10 × 1.25) | 85.3 - 91.1 N·m (63 - 67 lb ft) | p. 64 |
| Main bearing cap bolt torque (M12 × 1.5) | 93.2 - 98.1 N·m (69 - 72 lb ft) | p. 64 |
| Main control valve P1/P2 port torque (PF 1/2) | 59 - 69 N·m (44 - 51 lb ft) | p. 341 |
