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Bobcat 331, 331E, 334 G Series Excavator Service Manual

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Language: English
Manufacturer: Komatsu
Models Covered: 331, 331E, 334 G Series
Serial Numbers Covered: 331 – SN 234313000 & Above, 331E – SN 234412000 & Above, 334 – SN 234513000 & Above
Manual Type: Service Manual
Manufacturer Part Number: 6903830_7_07
Pages: 953
Format: PDF Instant View+Download

SKU: 6903830_7_07 Category:

Description

Bobcat 331, 331E, 334 G Series Excavator Service Manual



Condition: Brand New
Language: English
Manufacturer: Bobcat
Models Covered: 331, 331E, 334 G Series
Serial Numbers Covered: 331 – SN 234313000 & Above, 331E – SN 234412000 & Above, 334 – SN 234513000 & Above
Manual Type: Service Manual
Manufacturer Part Number: 6903830_7_07
Pages: 953
Format: PDF Instant View+Download

A Service Manual (sometimes referred to as a Repair, Technical, Workshop
or Shop Manual) is often
large and broken down in to sections for different parts of your equipment.
Service
manuals cover absolutely every aspect of your machine unless mentioned
otherwise. Sometimes, the
engine is covered in a separate service manual that is written specifically for
the
engine. Most of the time though, it’s included in the main service manual. A
service manual will
arm you with the same exact information that your local service center has and
includes
electrical and hydraulic diagrams
and which are usually color and or large
foldout pages.
Most OEM service manuals will also include troubleshooting flow charts, error
codes and
exploded views of components which are a great help for disassembly and
re-assembly.

An Operator’s Manual typically describes basic equipment operation and
maintenance. This
is the manual distributed with your equipment at the time of purchase from the
dealer.

A Parts Catalog is often large and broken down in to sections for
different parts of your
equipment. Parts Catalogs cover absolutely every aspect of your machine unless
mentioned
otherwise. Sometimes, the engine is covered in a separate parts catalog that is
written
specifically for the engine. Most of the time though, it’s included in the main
parts
catalog. A parts catalog will arm you with the same exact information that your
local
service center has and includes exploded views of assemblies that are a great
help with
disassembly and re-assembly. Parts catalogs also include all part numbers for
every part
of your machine which makes for easy ordering of parts.

PDF Contents:

  • MAINTENANCE SAFETY
  • ALPHABETICAL INDEX
  • CONTENTS
    • FOREWORD
    • SAFETY INSTRUCTIONS
      • Fire Prevention
    • SERIAL NUMBER LOCATIONS
      • Excavator Serial Number
      • Engine Serial Number
    • DELIVERY REPORT
    • BOBCAT EXCAVATOR IDENTIFICATION
  • SAFETY AND MAINTENANCE
    • LIFTING AND BLOCKING THE EXCAVATOR
      • Procedure
    • UPPERSTRUCTURE SLEW LOCK
      • Operation (Early Models)
      • Operation (Later Models)
    • LIFTING THE EXCAVATOR
      • Procedure
    • OPERATOR CAB (ROPS/TOPS)
      • Emergency Exit
      • Cab Door
      • Front Window
      • Right Side Windows
    • TRANSPORTING THE EXCAVATOR
    • TAILGATE
      • Opening And Closing The Tailgate
      • Adjusting The Bumper
      • Adjusting The Latch
    • RIGHT SIDE COVER
      • Opening And Closing The Right Side Cover
    • SERVICE SCHEDULE
      • Chart
    • AIR CLEANER SERVICE
      • Daily Check
      • Replacing The Filters
    • HEATER AIR FILTER (WITH CAB OPTION ONLY)
      • Removal And Installation
    • ENGINE COOLING SYSTEM
      • Replacing The Coolant
      • Checking Coolant Level
      • Cleaning The Cooling System
    • FUEL SYSTEM
      • Fuel Specifications
      • Filling The Fuel Tank
      • Removing Water From The Fuel Filter
      • Draining The Fuel Tank
      • Fuel Filter
      • Removing Air From The Fuel System
    • ENGINE LUBRICATION SYSTEM
      • Checking Engine Oil
      • Oil Chart
      • Replacing Oil And Filter
    • HYDRAULIC SYSTEM
      • Checking And Adding Hydraulic Fluid
      • Replacing The Hydraulic Fluid
      • Replacing The Hydraulic Filter
      • Replacing The Case Drain Filter
      • Diagnostic Couplers
    • LUBRICATION OF THE HYDRAULIC EXCAVATOR
      • Procedure
    • TRAVEL MOTOR
      • Checking Oil Level
      • Draining The Travel Motor
    • SPARK ARRESTOR MUFFLER
    • ENGINE ACCESSORY DRIVE BELT
      • Belt Tension
      • Belt Adjustment
    • SEAT BELT
      • Inspection And Maintenance
  • HYDRAULIC SYSTEM
    • HYDRAULIC/HYDROSTATIC SCHEMATICS
    • HYDRAULIC SYSTEM INFORMATION
      • Glossary Of Hydraulic/Hydrostatic Symbols For Excavators
      • Troubleshooting The Hydraulic Circuit
      • Troubleshooting The Cylinder Circuit
      • Troubleshooting The Swing (Upperstructure Slew) Circuit
      • Troubleshooting The Travel Circuit
    • BOOM CYLINDER
      • Testing
      • Removal And Installation
      • Parts Identification
      • Disassembly
      • Assembly
    • ARM CYLINDER
      • Testing
      • Removal And Installation
      • Parts Identification
      • Disassembly
      • Assembly
    • BOOM SWING CYLINDER
      • Testing
      • Removal And Installation
      • Parts Identification
      • Disassembly
      • Assembly
    • BUCKET CYLINDER
      • Testing
      • Removal And Installation (Standard And Long Arm)
      • Removal And Installation (Extendible Arm)
      • Parts Identification
      • Disassembly
      • Assembly
    • BLADE CYLINDER
      • Testing
      • Removal And Installation
      • Parts Identification
      • Disassembly
      • Assembly
    • EXTENDIBLE ARM CYLINDER
      • Removal And Installation
      • Parts Identification
    • MAIN RELIEF VALVE
      • Testing And Adjusting The Main Relief Valve
    • PORT RELIEF VALVES
      • Testing And Adjusting Port Relief Valve Pressure
    • CROSSPORT RELIEF VALVES
      • Testing And Adjusting The Crossport Relief Valves
    • PRESSURE REDUCING VALVE
      • Testing And Adjusting The Pressure Reducing Valve
    • HYDRAULIC CONTROL VALVE (s/N 234313000 – 234316876, S/N 234412000 – 234413318, S/N 234513000 – 234515532)
      • Description
      • Removal And Installation
    • HYDRAULIC CONTROL VALVE (S/N 234313000 – 234316876, S/N 234412000 – 234413318, S/N 234513000 – 234515532) (CONT’D)
      • Parts Identification
    • HYDRAULIC CONTROL VALVE (S/N 234313000 – 234316876, S/N 234412000 – 234413318, S/N 234513000 – 234515532) (CONT’D)
      • Disassembly
      • Right Travel Valve Section Disassembly And Assembly
      • Left Travel Valve Section Disassembly And Assembly
      • Blade Valve Section Disassembly And Assembly
      • Slew Valve Section Disassembly And Assembly
      • Second Auxiliary Valve Section Disassembly And Assembly
      • Bucket Valve Section Disassembly And Assembly
      • Arm Valve Section Disassembly And Assembly
      • Boom Valve Section Disassembly And Assembly
      • Boom Swing Valve Section Disassembly And Assembly
      • First Auxiliary Valve Section Disassembly And Assembly
      • Inlet Section Disassembly And Assembly
      • Assembly
    • HYDRAULIC CONTROL VALVE (S/N 234316877 & ABOVE, S/N 234413319 & ABOVE, S/N 234515533 & ABOVE)
      • Description
      • Removal And Installation
      • Parts Identification
      • Disassembly
      • Right Travel Valve Section Disassembly And Assembly
      • Left Travel Valve Section Disassembly And Assembly
      • Blade Valve Section Disassembly And Assembly
      • Slew Valve Section Disassembly And Assembly
      • Auxiliary Valve Section Disassembly And Assembly
      • Bucket Valve Section Disassembly And Assembly
      • Arm Valve Section Disassembly And Assembly
      • Boom Valve Section Disassembly And Assembly
      • Boom Swing Valve Section Disassembly And Assembly
      • Inlet Section Disassembly And Assembly
      • Assembly
      • HYDRAULIC PUMP
        • Description
        • Torque Adjustment
        • Testing The Piston Pump
        • Testing Auxiliary Hydraulic Flow
        • Removal And Installation
        • Coupler Removal And Installation
        • Parts Identification
        • Disassembly
        • Assembly
      • MANIFOLD ASSEMBLY/ ACCUMULATOR
        • Description
        • Removal And Installation
        • Parts Identification
        • Disassembly And Assembly
      • TRAVEL MOTOR
        • Removal And Installation
        • Parts Identification
        • Disassembly
        • Assembly
      • SWIVEL JOINT
        • Description
        • Removal And Installation
        • Parts Identification
        • Disassembly
        • Assembly
      • SWING MOTOR
        • Removal And Installation
        • Parts Identification
        • Disassembly
        • Assembly
      • SWING MOTOR DRIVE CARRIER
        • Removal And Installation
        • Parts Identification
        • Disassembly
        • Assembly
      • CONTROL PATTERN SELECTOR VALVE
        • Removal And Installation
        • Parts Identification
        • Disassembly
        • Assembly
      • RIGHT CONTROL LEVER (JOYSTICK)
        • Testing
        • Handle Removal And Installation
        • Joystick Assembly Removal And Installation
        • Parts Identification
        • Disassembly
        • Assembly
      • LEFT CONTROL LEVER (JOYSTICK)
        • Testing
        • Handle Removal And Installation
        • Joystick Assembly Removal And Installation
        • Parts Identification
        • Disassembly
        • Assembly
      • HYDRAULIC FILTER MOUNT
        • Removal And Installation
      • HYDRAULIC RESERVOIR
        • Removal And Installation
      • OIL COOLER
        • Removal And Installation
      • DIRECT TO TANK VALVE
        • Removal And Installation
        • Parts Identification
        • Disassembly And Assembly
      • CASE DRAIN FILTER
        • Removal And Installation
      • BOOM SWING LOCK VALVE
        • Removal And Installation
        • Parts Identification
        • Disassembly
        • Assembly
      • TRAVEL CONTROL VALVE
        • Removal and Installation
        • Parts Identification
        • Disassembly And Assembly
          • HYDRAULIC X-CHANGE VALVE
            • Figure 20-190-1
            • Figure 20-190-2
            • Figure 20-190-3
          • HYDRAULIC X-CHANGE VALVE (CONT’D)
            • Figure 20-190-4
            • Figure 20-190-5
            • Figure 20-190-6
            • Figure 20-190-7
          • HYDRAULIC X-CHANGE VALVE (CONT’D)
            • Figure 20-190-8
            • Figure 20-190-9
            • Figure 20-190-10
          • HYDRAULIC X-CHANGE VALVE (CONT’D)
            • Figure 20-190-11
            • Figure 20-190-12
      • HYDRAULIC X-CHANGE VALVE (CONT’D)
        • Parts Identification
        • HYDRAULIC X-CHANGE VALVE (CONT’D)
          • Figure 20-190-13
          • Figure 20-190-14
          • Figure 20-190-15
          • Figure 20-190-16
        • HYDRAULIC X-CHANGE VALVE (CONT’D)
          • Figure 20-190-17
          • Figure 20-190-18
          • Figure 20-190-19
          • Figure 20-190-20
        • HYDRAULIC X-CHANGE VALVE (CONT’D)
          • Figure 20-190-21
          • Figure 20-190-22
          • Figure 20-190-23
          • Figure 20-190-24
        • HYDRAULIC X-CHANGE VALVE (CONT’D)
          • Figure 20-190-25
          • Figure 20-190-26
          • Figure 20-190-27
          • Figure 20-190-28
        • HYDRAULIC X-CHANGE VALVE (CONT’D)
          • Figure 20-190-29
          • Figure 20-190-30
          • Figure 20-190-31
          • Figure 20-190-32
        • HYDRAULIC X-CHANGE VALVE (CONT’D)
          • Figure 20-190-33
          • Figure 20-190-34
          • Figure 20-190-35
          • Figure 20-190-36
        • HYDRAULIC X-CHANGE VALVE (CONT’D)
          • Figure 20-190-37
          • Figure 20-190-38
          • Figure 20-190-39
          • Figure 20-190-40
        • HYDRAULIC X-CHANGE VALVE (CONT’D)
          • Figure 20-190-41
        • HYDRAULIC X-CHANGE VALVE (CONT’D)
          • Figure 20-190-42
          • Figure 20-190-43
          • Figure 20-190-44
          • Figure 20-190-45
        • HYDRAULIC X-CHANGE VALVE (CONT’D)
          • Figure 20-190-46
          • Figure 20-190-47
          • Figure 20-190-48
          • Figure 20-190-49
        • HYDRAULIC X-CHANGE VALVE (CONT’D)
          • Figure 20-190-50
          • Figure 20-190-51
          • Figure 20-190-52
          • Figure 20-190-53
        • HYDRAULIC X-CHANGE VALVE (CONT’D)
          • Figure 20-190-54
          • Figure 20-190-55
          • Figure 20-190-56
          • Figure 20-190-57
        • HYDRAULIC X-CHANGE VALVE (CONT’D)
          • Figure 20-190-58
          • Figure 20-190-59
          • Figure 20-190-60
          • Figure 20-190-61
        • HYDRAULIC X-CHANGE VALVE (CONT’D)
          • Figure 20-190-62
          • Figure 20-190-63
          • Figure 20-190-64
          • Figure 20-190-65
        • HYDRAULIC X-CHANGE VALVE (CONT’D)
          • Figure 20-190-66
          • Figure 20-190-67
          • Figure 20-190-68
          • Figure 20-190-69
          • Figure 20-190-70
  • UNDERCARRIAGE
    • BLADE
      • Removal And Installation
    • TRACKS
      • Track Lug Height
      • Adjustment
      • Rubber Track Removal And Installation
      • Steel Track Removal And Installation
    • TRACK FRAME
      • Disassembly And Assembly
      • Recoil Spring Cylinder
    • TRACK DAMAGE IDENTIFICATION
      • Cutting Of Steel Cords
      • Abrasion Of Embedded Metals
      • Separation Of Embedded Metals
      • Separation Of Embedded Metals Due To Corrosion
      • Cuts On The Lug Side Rubber
      • Cracks On The Lug Side Rubber Due To Fatigue
      • Lug Abrasion
      • Cracks And Cuts On The Lug Side Rubber
      • Abrasion Of The Track Roller Side
      • Cuts On The Edges Of Track Roller Side
    • TRACK IDLER
      • Parts Identification
      • Disassembly
      • Assembly
    • TRACK ROLLER
      • Parts Identification
      • Disassembly
      • Assembly
    • SWING CIRCLE GEAR
      • Swing Bearing Removal
    • SWING CIRCLE GEAR
      • Swing Bearing Installation
  • UPPERSTRUCTURE & SWING SECTION
    • UPPERSTRUCTURE
      • Removal
      • Installation
    • ROPS CANOPY
      • Removal And Installation
    • CAB
      • Removal And Installation
      • Door Removal And Installation
      • Front Window Removal And Installation
      • Right Side Rear Sliding Window Removal And Installation
      • Right Side Front Sliding Window Removal And Installation
      • Right Side Front And Rear Sliding Window Weather Strip Removal And Installation
      • Right Side Front And Rear Sliding Window Wiper Strip Removal And Installation
      • Glass Removal
      • Glass Installation
    • SEAT AND SEAT MOUNT
      • Removal And Installation
    • RIGHT CONSOLE
      • Console Cover Removal And Installation
      • Console Base Removal And Installation
    • LEFT CONSOLE
      • Lower Console Cover Removal And Installation
      • Upper Console Cover Removal And Installation
      • Compression Spring Removal And Installation
      • Compression Spring Disassembly And Assembly
      • Lock Lever Removal And Installation
      • Console Removal And Installation
      • Disassembly And Assembly
      • Console Base Removal And Installation
    • ENGINE SPEED CONTROL
      • Removal And Installation
      • Adjustment (Later Models)
    • BLADE CONTROL
      • Lever Removal And Installation
      • Linkage Removal And Installation
      • Linkage Bar Removal And Installation
      • Lower Linkage Removal And Installation
    • RIGHT PEDAL AND LINKAGE
      • Pedal Removal And Installation
      • Pedal Disassembly And Assembly
      • Linkage Removal And Installation
    • TRAVEL CONTROLS
      • Removal And Installation
      • Disassembly And Assembly
      • Adjustment
      • Control Linkage Removal And Installation
    • FLOOR MAT AND FLOOR PLATE
      • Removal And Installation (Canopy Equipped Excavators)
      • Removal And Installation (Cab Equipped Excavators)
    • FUEL TANK
      • Removal And Installation
    • HORN
      • Removal And Installation (Early Models)
      • Removal And Installation (Later Models)
    • SWING FRAME
      • Removal And Installation
      • Boom Swing Frame Hose Routing
      • Bushing Removal
      • Bushing Installation
    • BOOM
      • Removal And Installation
    • STANDARD AND LONG ARM
      • Removal And Installation
      • Arm To Boom Bushing Removal And Installation
      • Arm To Bucket And Bucket Link Bushing Removal And Installation (Early Models)
      • Arm To Bucket And Bucket Link Bushing Removal And Installation (Later Models)
      • Arm To Bucket And Bucket Link Bushing Removal And Installation (Later Models) (Cont’d)
    • EXTENDIBLE ARM
      • Removal And Installation
      • Disassembly And Assembly
    • BUCKET
      • Bucket Teeth Removal And Installation
      • Bucket Side Cutting Edge Removal And Installation
    • TAILGATE
      • Removal And Installation
      • Latch Removal And Installation
    • X-CHANGE™
      • Removal And Installation
      • Disassembly
      • Assembly
      • Check Proper Latch Engagement
    • X-CHANGE (HYDRAULIC)
      • Removal And Installation
      • Parts Identification
      • Disassembly
      • Assembly
    • UPPERSTRUCTURE SLEW LOCK
      • Removal And Installation (Early Models)
      • Removal And Installation (Later Models)
      • Disassembly And Assembly (Later Models)
    • RIGHT SIDE COVER
      • Removal And Installation
  • ELECTRICAL SYSTEM AND ANALYSIS
    • ELECTRICAL SCHEMATICS
    • ELECTRICAL SYSTEM INFORMATION
      • Troubleshooting Chart
      • Description
      • Fuse And Relay Location
    • BATTERY
      • Servicing
      • Removal And Installation
      • Using A Booster Battery (Jump Starting)
    • ALTERNATOR
      • Engine Accessory Drive Belt
      • Removal And Installation
      • Alternator Identification
      • Charging System Check
      • Alternator Voltage Test
      • Low Voltage Test
      • High Voltage Test
      • Rectifier Continuity (Diode) Test
      • Alternator Regulator Test
      • Parts Identification
      • Disassembly
      • Stator Continuity Test
      • Stator Ground Test
      • Rotor Continuity Test
      • Rotor Ground Test
      • Assembly
    • STARTER
      • Removal And Installation
      • Parts Identification
      • Disassembly
      • Inspection And Repair
      • Assembly
    • LIGHTS
      • Removal And Installation
      • Boom Light Removal And Installation (Early Models)
      • Boom Light Disassembly And Assembly (Early Models)
      • Boom Light Removal And Installation (Later Models)
      • Boom Light Bulb Replacement (Later Models)
    • MAGNETIC LOCKOUT SENSOR
      • Removal And Installation
    • TWO SPEED SWITCH
      • Removal And Installation
    • FUEL LEVEL SENDER
      • Removal And Installation
      • Testing
    • DIAGNOSTICS SERVICE CODE
      • Number Codes List
    • DELUXE INSTRUMENT PANEL SETUP
      • Passwords
      • Password Entry (For Starting and Operating the Machine)
      • Changing The Owner Or Operator Password
      • Password Lockout Feature
      • Job Clock
      • RPM
  • ENGINE SERVICE
    • TROUBLESHOOTING
      • Chart
    • SPARK ARRESTOR MUFFLER
      • Removal And Installation
    • AIR CLEANER
      • Removal And Installation
    • RADIATOR
      • Removal And Installation
    • ENGINE COMPONENTS AND TESTING
      • Engine Compression Checking
      • Glow Plugs Removal And Installation
      • Checking The Glow Plug
      • Fuel Shut-off Solenoid Removal And Installation
      • Fuel Injection Pump Check
      • Fuel Injection Pump Removal And Installation
      • Fuel Injection Pump Timing
      • Fuel Injector Nozzles Removal And Installation
      • Fuel Injector Nozzle Check
      • Valve Clearance Adjustment
    • ENGINE
      • Removal And Installation
    • ENGINE FLYWHEEL (EARLY MODELS)
      • Flywheel Removal And Installation
      • Hydraulic Pump Coupler
      • Flywheel Ring Gear
    • ENGINE FLYWHEEL (LATER MODELS)
      • Flywheel Removal And Installation
      • Hydraulic Pump Coupler
      • Flywheel Ring Gear
    • RECONDITIONING THE ENGINE
      • Cylinder Head Removal And Installation
      • Cylinder Head Disassembly And Assembly
      • Cylinder Head Servicing
      • Cylinder Head Top Clearance
      • Valve Guide Checking
      • Reconditioning The Valve And Valve Seat
      • Valve Spring
      • Rocker Arm And Shaft Checking
      • Timing Gearcase Cover Removal And Installation
      • Idler Gear And Camshaft Removal And Installation
      • Camshaft Servicing
      • Idler Gear And Shaft Servicing
      • Timing Gears Checking Backlash
      • Fuel Camshaft Removal And Installation
      • Fuel Camshaft Governor
      • Crankshaft Gear Removal And Installation
      • Oil Pump Removal And Installation
      • Oil Pump Service
      • Checking Engine Oil Pressure
      • Valve Tappets
      • Piston And Connecting Rod Removal And Installation
      • Piston And Connecting Rod Servicing
      • Connecting Rod Alignment
      • Crankshaft And Bearings Removal And Installation
      • Crankshaft And Bearings Servicing
      • Cylinder Bore Checking
      • Water Pump Removal And Installation
      • Water Pump Disassembly And Assembly
      • Fan Removal And Installation
  • HEATING, VENTILATION, AIR CONDITIONING
    • HEATER COIL (EARLY MODELS)
      • Removal And Installation With A/C
      • Removal And Installation Without A/C
    • HEATER COIL (LATER MODELS)
      • Removal And Installation With A/C
      • Removal And Installation Without A/C
    • BLOWER FAN (EARLY MODELS)
      • Removal And Installation
      • Disassembly And Assembly
    • BLOWER FAN (LATER MODELS)
      • Removal And Installation
      • Disassembly And Assembly
      • Resistor Removal And Installation
    • HEATER VALVE (EARLY MODELS)
      • Removal And Installation
    • HEATER VALVE (LATER MODELS)
      • Removal And Installation
    • AIR CONDITIONING SYSTEM FLOW
      • Principals
      • Chart
    • COMPONENTS
      • Identification
    • SAFETY
      • Safety Equipment
    • REGULAR MAINTENANCE
      • Heater Air Filter
      • Engine Accessory Drive Belt Inspection
      • Cleaning The Condenser
    • BASIC TROUBLESHOOTING (EARLY MODELS)
      • Poor A/C Performance
      • Cleaning The A/C Evaporator Coil & Heater Coil
      • Engine Accessory Drive Belt Inspection
      • Checking The Electrical System
      • Engine Coolant By-Passing The Heater Valve
    • BASIC TROUBLESHOOTING (LATER MODELS)
      • Poor A/C Performance
      • Cleaning The A/C Evaporator Coil & Heater Coil
      • Engine Accessory Drive Belt Inspection
      • Checking The Electrical System
      • Engine Coolant By-Passing The Heater Valve
    • GENERAL AIR CONDITIONING SERVICE GUIDELINES
      • Compressor Oil
      • Compressor Oil Check
      • Component Replacement And Refrigeration Leaks
    • SYSTEM TROUBLESHOOTING CHART
      • Blower Motor Does Not Operate
      • Blower Motor Operates Normally, But Air Flow Is Insufficient
      • Insufficient Cooling Although Air Flow And Compressor Operation Are Normal
      • The Compressor Operates Improperly Or Not At All
      • Gauge Pressure Related Troubleshooting
    • TEMPERATURE/PRESSURE
      • Chart
    • AIR CONDITIONING SERVICE
      • Chart
    • SYSTEM CHARGING AND RECLAMATION
      • Reclamation Procedure
      • Charging Procedure With A Manifold Gauge Set
    • COMPRESSOR
      • Removal And Installation
      • Compressor Clutch Disassembly And Assembly
    • CONDENSER
      • Removal And Installation
    • RECEIVER/DRIER
      • Removal And Installation
    • PRESSURE RELIEF VALVE
      • Removal And Installation
    • PRESSURE SWITCH
      • Removal And Installation
    • EVAPORATOR/HEATER UNIT (EARLY MODELS)
      • Removal And Installation
      • Disassembly And Assembly
    • EVAPORATOR/HEATER UNIT (LATER MODELS)
      • Removal And Installation
      • Disassembly And Assembly
    • THERMOSTAT (EARLY MODELS)
      • Removal And Installation
    • THERMOSTAT (LATER MODELS)
      • Removal And Installation
    • EXPANSION VALVE (EARLY MODELS)
      • Removal And Installation
    • EVAPORATOR VALVE (LATER MODELS)
      • Removal And Installation
    • EVAPORATOR (EARLY MODELS)
      • Removal And Installation
    • EVAPORATOR (LATER MODELS)
      • Removal And Installation
  • SPECIFICATIONS
    • SPECIFICATIONS
      • 331 & 334 Excavator Machine Dimensions
      • 331E Excavator Machine Dimensions
      • Performance
      • Controls
      • Engine
      • Hydraulic System
      • Hydraulic Cylinders
      • Hydraulic Cycle Times
      • Drive System
      • Undercarriage
      • Track
      • Electrical
    • ENGINE SPECIFICATIONS
      • Fuel Injection Nozzles
      • Fuel Injection Pump
      • Cylinder Head
      • Valves
      • Valve Springs
      • Valve Timing
      • Rocker Arms
      • Camshaft
      • Tappet
      • Cylinders
      • Piston Rings
      • Pistons
      • Connecting Rods
      • Oil Pump
      • Crankshaft
      • Timing Gear
      • Thermostat
      • Engine Bolt Torque
      • Crankshaft Re-Grind Data
    • TORQUE SPECIFICATIONS
      • Torque For General SAE Bolts
      • Torque For General Metric Bolts
    • HYDRAULIC CONNECTION SPECIFICATIONS
      • O-Ring Face Seal Connection
      • Straight Thread O-Ring Fitting
      • Tubelines And Hoses
      • Flare Fitting
      • O-Ring Flare Fitting
      • Port Seal Fitting
    • HYDRAULIC FLUID SPECIFICATIONS
      • Specifications
    • FUEL, COOLANT AND LUBRICANTS
      • Chart
    • CONVERSIONS
      • Decimal And Millimeter Equivalents
      • U.S. To Metric Conversion
  • SMR
    • 331/331E/334-1
    • 331/331E/334-2
    • 331/331E/334-3
    • 331/331E/334-4
    • 331/331E/334-5
    • 331/331E/334-6

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