![Case CX17B Repair Manual [Mini Excavators]](https://youfixthis.com/wp-content/uploads/2013/10/YouFixThis-Kawasaki-Screen-11-300x300.png)
Part of the Case Repair Manuals.
This 715-page Case CX17B Service Manual (OEM #S5PU0018E01) covers your Hydraulic Excavator from the cutting edge down to the last capscrew, and yes, that includes the Mitsubishi L3E engine section most competing manuals skip. Open it up and you get full electric circuit diagrams with harness connection routing, hydraulic circuit operation for travel, slew, and bucket functions, and a dedicated troubleshooting section split by hydraulic, electrical, and engine trouble. You also get the general disassembly and assembly standards before any teardown, so you're not guessing at sequence on the upper slewing structure or travel system. Check your M10 capscrews at 39.2±3.9 N-m, and confirm the hydraulic tank holds 9 liters before you button it back up. No more flipping between three PDFs looking for the right torque spec. Bookmarked by system, so you jump straight to Components or Attachments and start turning wrenches.
What's Inside This Case CX17B, CX31B, CX36B Manual
| System | Pages | Key Topics |
|---|---|---|
| Service Manual - Hydraulic Excavator - Cx17B | 1-2 | - |
| Revision History | 3 | - |
| General Safety Information | 5-7 | - |
| Outline | 10-19 | International Unit Conversion System |
| Specifications | 20-33 | Components Name, Machine Dimensions, Specifications and Performance, Machine & Components Weight (Dry), Transportation, Engine Specifications |
| Attachment Dimensions | 34-57 | Boom, Arm, Bucket, Dozer, Swing |
| Tools | 58-71 | Torque Specifications for Capscrews & Nuts, Screw Size, Torque Specifications for Joints and Hoses, Torque Specifications for Sleeve Type Tube Fittings, Plugs, Special Tools |
| Standard Maintenance Timetable | 72-83 | Standard Working Time Table for the Maintenance of Excavator, Working Conditions, Applicable Range of Standard Maintenance Time, Excluded Time |
| Maintenance Standard and Test Procedure | 84-105 | How to Use Maintenance Standards and Precautions, Performance Inspection Standard Table, Measuring Engine Speed, Measuring Hydraulic Oil Pressure, Measuring Travel Performances |
| Hydraulic System | 106-135 | Summary, Hydraulic Circuits and Component Models, Hydraulic Circuit Operation, Travel Operating Circuit, Slew Operating Circuit, Bucket Operating Circuit |
| Electrical System | 136-181 | How to Read Circuit Diagram and Harness Connection, Electrical Equipment & Harness, Electric Circuit Diagram, Arrangement Drawing for Components & Harness |
| Components System | 182-253 | Hydraulic Components, Hydraulic Pump, Pilot Valve (Att), Control Valve, Slewing Motor, Cylinder |
| General Disassembly and Assembly | 254-257 | Contents of General Disassembly and Assembly, Specification of Tightening Torque |
| Attachments | 258-289 | Removing and Installing, Attachment Assembly and Name, Bucket, Arm, Boom, Cylinder |
| Upper Slewing Structure | 290-417 | Removing and Installing, Pump, Control Valve, Engine, Slewing Motor, Swivel Joint |
| Travel System | 418-481 | Removing and Installing, Name of Travel System Parts, Crawler, Lower Roller, Travel Motor, Adjustable Crawler Frame Width |
| Troubleshooting (Hydraulic System) | 482-493 | General Precautions, Trouble Diagnosis : Hydraulic, Attachment, Travel Operation, Slewing Operation, Pump |
| Troubleshooting (Electrical System) | 494-503 | Trouble Diagnosis : Electric System, General, Attachment Operation, Travel Operation |
| Troubleshooting (Engine) | 504-515 | Trouble Diagnosis : Engine, Starting Trouble, E/G Rotation Trotuble, Output Drops Down, Other Trouble |
| Engine | 516-517 | - |
| Engine Service Manual - Mitsubishi Diesel Engine L3E | 518-715 | Disassembling and Inspecting Cylinder Head and Valve Mechanism, Disassembling and Inspecting Flywheel, Disassembling and Inspecting Gear Case, Timing Gears and Camshaft |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Metric Coarse Thread Standard Tightening Torque (M6 P=1, 4.8T, No lubrication) | 4.4±0.5 N·m (3.2±0.4 lbf·ft) | p. 60 |
| Metric Coarse Thread Standard Tightening Torque (M10 P=1.5, 7T, Oil lubrication) | 39.2±3.9 N·m (28.9±2.9 lbf·ft) | p. 60 |
| Engine Total Displacement | 952 ml (58.1 cu-in) | p. 24 |
| Engine Maximum Torque | 53.5 N-m / 1,800 min-1 (39.4 lbf-ft / 1,800 rpm) | p. 24 |
| Hydraulic Oil Tank Capacity | 9 liters (2.4 gal) | p. 303 |
| Engine Oil Volume (High) | 3.5 liter (0.92 gal) | p. 32 |
| Cooling Water Capacity (Max) | 3.7 liter (0.98 gal) | p. 32 |
| Main Relief Valve Pressure (P1, P2) | 21.6 MPa (3130 psi) | p. 88 |
| Slewing Speed | 8.6 min-1 (8.6 rpm) | p. 24 |
| Travel Speed (High/2nd) | 4.0 km/h | p. 24 |
| Crawler Tension (Rubber) | 45~50 mm (1.77~1.97 in) | p. 89 |
| Bucket Heaped Capacity | 0.044 m3 (0.058 cu-yd) | p. 31 |
Case CX17B, CX31B, CX36B Common Problems This Manual Covers
Case CX17B hydraulic pump grinding noise under load, bucket won't lift to full height
Check the Troubleshooting Procedures on page 486 for pump noise and low-flow faults. Verify main relief valve pressure reads 21.6 MPa (3130 psi) at ports P1 and P2 per page 88; low readings point to worn swash plate bearings. Confirm the hydraulic tank still holds its 9 liter (2.4 gal) capacity from page 303 before condemning the pump.
Manual Section: Hydraulic Pump TroubleshootingEngine won't start or turns over slowly in cold weather despite good battery charge
Follow the Troubleshooting (Engine) starting trouble diagnosis on page 504. Verify engine oil is filled to the 3.5 liter (0.92 gal) high mark specified on page 32, since underfilled crankcase oil thickens in cold temps and drags cranking speed. Check glow plug operation and battery terminals for corrosion before condemning the starter motor.
Manual Section: Troubleshooting (Engine) p. 504Slewing motor turns sluggishly or won't rotate the upper structure at all
Reference the Troubleshooting (Hydraulic System) section on page 482 for slewing operation faults. Confirm slewing speed reaches the rated 8.6 min-1 (8.6 rpm) listed on page 24; a reading well below spec points to a worn slewing motor relief valve. Check main circuit pressure against the 21.6 MPa (3130 psi) standard on page 88 before pulling the motor.
Manual Section: Hydraulic System Troubleshooting p. 482Control valve spool sticks, bucket and arm attachment movements feel jerky or unresponsive
Check the Troubleshooting Procedures on page 486 for spool binding and load check valve damage. Torque any disturbed tube fitting joints to 44±4.9 N·m (33±4 lbf·ft) per page 64, since an undertightened fitting bleeds off pressure and mimics a sticking spool. Clean the spool bore of contamination before reassembly and retest response.
Manual Section: Control Valve TroubleshootingSwivel joint leaking hydraulic oil externally around the upper structure while slewing
Check the Troubleshooting Procedures on page 486 for swivel joint external leakage sources. Inspect seal grooves for scoring and confirm mounting bolts are torqued to the 71.6±6.9 N·m (52.8±5.1 lbf·ft) fine-thread spec on page 61. Replace worn O-rings and refill the hydraulic tank to its 9 liter (2.4 gal) capacity per page 303.
Manual Section: Swivel Joint Troubleshooting p. 417Frequently Asked Questions
What are the recommended service intervals?
The manual specifies service intervals for certain components. For instance, the fuel filter should be washed in diesel fuel every 100 hours and replaced every 400 hours. Similarly, the water segment should be washed in gas oil every 100 hours and replaced every 400 hours. p. 636
What fluids and capacities does this machine require?
The hydraulic excavator CX17B requires specific fluid capacities. The engine oil volume is 3.5 liters (0.92 gal) for high and 2.2 liters (0.58 gal) for low. The cooling water capacity for the engine is 1.9 liters (0.50 gal), with a maximum of 3.7 liters (0.98 gal) for the entire system. The hydraulic oil tank has a capacity of approximately 9 liters (2.4 gal), and the fuel tank capacity is about 22 liters (5.8 gal). The travel motor reduction unit requires 330 cc (20 cu-in) of ENGINE OIL SAE-30-CD. p. 32
How to troubleshoot engine won't start?
To troubleshoot an engine that won't start, first check the battery voltage, fluid, and specific gravity. If the starter still doesn't rotate, verify the voltage at the key switch B terminal (12V) and the starter motor B terminal (12V). If the starter rotates but struggles, inspect the air suction system, fuel feed system, and electrical system, including glow plug voltage (12V detected). p. 497
What are the valve clearance specifications?
The standard valve clearance for both inlet and exhaust valves is 0.25 mm [0.0099 in.]. This specification is crucial for proper engine operation and should be checked when the engine is cold. p. 543
How will I receive this Case CX17B Service Manual?
This is a 715-page searchable PDF ready for immediate download. Works on any device, so pull it up on your phone while you're under the hood. No shipping, no waiting.
Can I print this Case CX17B manual?
Yes. The PDF has no DRM restrictions, so print any page or section you need for your shop. Works with any standard printer.
Does this Case CX17B manual include wiring diagrams?
Complete wiring diagrams are included, covering all electrical circuits, harness routing, and connector pinouts for the Case CX17B.
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