Case 21E, 121E, 221E, 321E Series 3 Tier 3 Compact Wheel Loader Service Manual
489 pages · Publication 87734636A
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What's inside
From the manual's own table of contents: 11 sections, 138 entries. See sample pages (PDF, 935 KB)
INTRODUCTION3 topics
- SAFETY INSTRUCTIONS
- GENERAL SAFETY INSTRUCTIONS
- TECHNICAL SPECIFICATIONS
ENGINE2 topics
- DIESEL ENGINE
- FUEL SYSTEM
FRONT AXLES14 topics
- REMOVAL AND INSTALLATION
- DIMENSIONS
- OIL CHANGE
- DISASSEMBLY AND ASSEMBLY
- DISC BRAKE ASSY
- BRAKE CALIPER
- REDUCTION GEAR (21E)
- WHEEL HUB (21E)
- BRAKE AND WHEEL SHAFT (121E, 221E, 321E “HIGH SPEED”)
- DIFFERENTIAL SUPPORT
- DIFFERENTIAL ASSY
- PINION
- TROUBLESHOOTING
- SPECIAL TOOLS
REAR AXLES10 topics
- MOTOR TB150
- MOTOR TB138.5 “HIGH SPEED
- TRANSMISSION BOX TB150
- TRANSMISSION TB138.5 “HIGH SPEED
- REDUCTION GEAR (21E)
- WHEEL HUB (21E)
- DIFFERENTIAL SUPPORT
- DIFFERENTIAL ASSY
- LIMITED SLIP DIFFERENTIAL ASSY
- PINION
BRAKE SYSTEM19 topics
- BRAKE SYSTEM DIAGRAM
- STANDARD DIAGRAM
- HIGH SPEED” DIAGRAM
- TECHNICAL SPECIFICATIONS
- BRAKE PEDAL VALVE
- PRESSURE SWITCHES
- OPERATION
- SERVICE BRAKE OPERATION
- PARKING BRAKE OPERATION
- BRAKE PEDAL VALVE
- PRESSURE SWITCHES
- BRAKE ACCUMULATOR
- TECHNICAL SPECIFICATIONS
- CHECKS AND ADJUSTMENTS
- SERVICE BRAKE SYSTEM PRESSURE CHECK
- ACCUMULATOR PRESSURE CHECK
- PEDAL ANGLE ADJUSTMENT
- INCHING” VALVE ADJUSTMENT
- TROUBLESHOOTING
HYDRAULIC SYSTEM34 topics
- HYDRAULIC DIAGRAMS
- HYDRAULIC DIAGRAM FOR 21E
- HYDRAULIC DIAGRAM FOR 21E WITH OPTIONAL OUTFITS
- HYDRAULIC DIAGRAM FOR 121E
- HYDRAULIC DIAGRAM FOR 121E WITH OPTIONAL OUTFITS
- HYDRAULIC DIAGRAM FOR 221E
- HYDRAULIC DIAGRAM FOR 221E WITH OPTIONAL OUTFITS
- HYDRAULIC DIAGRAM FOR 321E
- HYDRAULIC DIAGRAM FOR 321E WITH OPTIONAL OUTFITS
- TRANSMISSION
- HYDRAULIC DIAGRAM
- OPERATION
- ADJUSTMENTS
- VARIABLE-DISPLACEMENT PISTON PUMP
- TECHNICAL SPECIFICATIONS
- MAIN VALVES
- DISASSEMBLY
- ASSEMBLY
- GEAR PUMP
- TECHNICAL SPECIFICATIONS
- COMPONENTS
- DISASSEMBLY AND ASSEMBLY
- PRIORITY VALVE
- TECHNICAL SPECIFICATIONS
- TRAVEL MOTOR
- TECHNICAL SPECIFICATIONS
- MAIN COMPONENTS
- OPERATION
- REMOVAL
- DISASSEMBLY AND ASSEMBLY
- ONE-WAY DISTRIBUTOR VALVE
- HYDRAULIC OIL TANK
- OIL FILTER
- TROUBLESHOOTING
FRAME3 topics
- ARTICULATED JOINT
- COMPONENTS
- DISASSEMBLY AND ASSEMBLY
STEERING SYSTEM13 topics
- OPERATION
- EMERGENCY STEERING
- PRESSURE ADJUSTMENT
- POWER STEERING
- TECHNICAL SPECIFICATIONS
- COMPONENTS
- DISASSEMBLY AND ASSEMBLY
- TROUBLESHOOTING
- SPECIAL TOOLS
- STEERING CYLINDER
- REMOVAL AND INSTALLATION
- DISASSEMBLY
- TROUBLESHOOTING
HEATING AND AIR CONDITIONING SYSTEM3 topics
- HEATING
- AIR CONDITIONING
- TROUBLESHOOTING
ELECTRICAL SYSTEM6 topics
- ELECTRICAL DIAGRAMS
- FUSES AND RELAYS
- VOLTAGE AND CONTINUITY CHECK
- BATTERY
- REPLACEMENT
- BULBS
WORKING EQUIPMENT20 topics
- HYDRAULIC DIAGRAM
- OPERATION
- REMOVAL AND INSTALLATION
- QUICK TOOL COUPLER
- COMPONENTS
- QUICK TOOL COUPLER CYLINDERS
- BUCKET
- ASSEMBLY
- DISASSEMBLY
- BUCKET TEETH - REPLACEMENT
- FORKS
- DISASSEMBLY AND ASSEMBLY
- CHECKS
- CYLINDERS
- BOOM CYLINDER
- DUMPING CYLINDER
- CONTROL VALVE
- LOAD HOLDING VALVE
- TECHNICAL SPECIFICATIONS
- TROUBLESHOOTING
Inside this manual
Real pages from this service manual (489 pages). Open the sample pages (PDF, 935 KB)
- Specifications, page 50: SECTION 25 - FRONT AXLES
- Diagram, page 365: SECTION 41 - STEERING SYSTEM
- Troubleshooting, page 393: SECTION 41 - STEERING SYSTEM
- Foldout diagram: SECTION 35 - HYDRAULIC SYSTEM
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This is a service manual
Here's how it compares to the other manual types.
Service manual
Factory repair procedures and technical information such as specifications, troubleshooting, and wiring and hydraulic diagrams, for the models and systems the manual covers. See What's inside for its topics.
Operator's manual
Safe operation, controls, maintenance schedules, lubrication points, inspections, and basic checks. Repair procedures are in the service manual.
Parts manual
Illustrated diagrams with factory part numbers for identifying components and ordering parts. Repair procedures are in the service manual.
Engine service manuals are sometimes sold separately, since certain machine models were offered with more than one engine option.
What it's used for
Factory manual for in-house farm and construction shop use. Straightforward, complete, and easy to follow. It contains the OEM information dealership service departments and parts counters use to diagnose problems, identify components, and perform maintenance or repairs correctly.
Service shops and owner/operators who repair their own equipment
Identifying correct parts and seeing how assemblies come apart and go back together
Keeping equipment running with less downtime
Factory manual, 489 pages
Quantity one is the manual described above.
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Binder not included
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Other editions and similar models
Questions about model, serial number, engine coverage or contents? Contact us before purchasing and we'll help confirm it's the right manual. Please verify the manual type, machine model, serial number range and engine coverage before purchasing: manuals ordered in error carry a 20% restocking fee (return policy).