Bobcat 331 331e 334 Repair Manual [Excavator] (512913001-…)

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Description

Revised Factory [6900464 ] Workshop Repair Service Manual For Bobcat 331, 331E, 334 Excavator. Detailed Step by Step Instructions, diagrams, illustrations make easy any repair, Overhaul, Disassembly and Assembly, Testing, Adjustment, Replacement and Change, Inspection and Adjustment, etc.

= Printable,
= Zoom able,
= Clickable index,
= Bookmarks,
= Searchable Text

MODELS Covered

Bobcat Excavator

331 (S/N 512913001 & Above)
331E (S/N 517711001 & Above)
334 (S/N 516711001 & Above)


SECTIONS covered

* Preventive Maintenance

Air Cleaner
Air Cleaner Service
Alternator Belt
Adjustment
Cooling System
Coolant Level
Coolant Replacement
Electrical System
Using A Booster Battery (Jump Starting)
Engine Cover
Adjustment Of The Engine Cover Latch
Opening The Cover
Engine Lubrication System
Checking Engine Oil
Replacement Of Oil And Filter
Fuel System
Filling The Fuel Tank
Fuel Filter
Fuel Specifications
Fuel System Maintenance
Removing Air From The Fuel System
Heater Air Filter (With Cab Option Only)
Procedure
Hydraulic System
Checking And Adding Fluid
Replacing The Drain Line Filter
Replacing The Hydraulic Filter
Replacing The Hydraulic Oil
Lifting And Blocking The Excavator
Procedure
Lubrication Of The Excavator
Procedure
Service Schedule
Chart
Spark Arrestor Muffler
Cleaning The Spark Arrestor Muffler
Transporting The Excavator
Procedure
Travel Motor
Checking The Oil Level
Draining And Refilling

* Hydraulic Section

Accumulator / Pressure Reducing Valve
Assembly
Description
Disassembly
Parts Identification
Removal And Installation
Testing
Arm Cylinder
Parts Identification
Removal And Installation
Auxiliary Selector Valve
Disassembly And Assembly
Blade Cylinder
Parts Identification
Removal And Installation
Boom Cylinder
Parts Identification
Removal And Installation
Boom Swing Cylinder
Parts Identification
Removal And Installation
Bucket Cylinder
Parts Identification
Removal And Installation (Extendible Arm)
Removal And Installation (Standard And Long Arm)
Build Up Valve
Description
Disassembly And Assembly
Removal And Installation
Cross Port Relief Valve
Description
Testing
Removal And Installation
Extendible Arm CylinderParts
Identification
Removal And Installation
Hydraulic Control Valve (Spool)
Boost, Arm, Boom Swing, Blade And Swing Section
Assembly
Arm, Boost And Swing Motor Assembly
Arm, Boost And Swing Motor Disassembly
Blade Assembly
Blade Disassembly
Boom Swing Assembly
Boom Swing Disassembly
Hydraulic Control Valve (Spool) (Cont’D)
Description
Disassembly
Inlet Section Disassembly And Assembly
Parts Identification
Removal And Installation
Left Travel, Right Travel, Boom, Bucket And Auxiliary
Assembly
Boom And Bucket Assembly
Boom And Bucket Disassembly
Disassembly
Left Travel, Right Travel And Auxiliary Assembly
Left Travel, Right Travel And Auxiliary Disassembly
Mid Inlet Section Assembly
Mid Inlet Section Disassembly
Outlet Sections Assembly
Outlet Sections Disassembly
Parts Identification
Removal And Installation
Hydraulic Cylinder
Assembly
Disassembly
Hydraulic Filter Assembly
Removal And Installation
Hydraulic Pump
Assembly
Checking The Hydraulic Pump
Disassembly
Parts Identification
Removal And Installation
Hydraulic Reservoir And Fuel Reservoir
Removal And Installation
Hydraulic Service Information
Description
Hydraulic System Troubleshooting
Troubleshooting The Cylinder Circuit
Troubleshooting The Hydraulic Circuit
Troubleshooting The Swing (Slew) Circuit
Troubleshooting The Travel Circuit
Joystick Control Change
Iso To Standard Control Pattern
Standard To Iso Control Pattern
Main Relief Valves (Adjustable)
Adjusting The Main Relief Valves
Assembly
Checking The Main Relief Valves
Testing The Auxiliary And Bucket Circuit Relief Valve
Testing The Blade, Boom Swing, Arm And Boost
Circuit Relief Valves
Testing The Boom Circuit Relief Valve
Testing The Left Hand Travel Circuit Relief Valve
Testing The Right Hand Travel Circuit Relief Valve
Testing The Swing Circuit Relief Valve
Disassembly
Parts Identification
Pressure Settings
Oil Cooler
Removal And Installation
Port Block
Removal And Installation
Port Relief Valves And Main Relief Valves
Adjustment Procedure (Work Port Relief Valves Only)
Assembly
Disassembly
Parts Identification
Port Relief Valve Pressure Setting

* Drive Section

Left Console
Console Removal And Installation
Console And Mount Removal And Installation
Control Lock Microswitch Removal And Installation
Gas Spring Removal And Installation
Lock Lever Removal And Installation
Joystick
Assembly
Disassembly
Parts Identification
Removal And Installation
Removal And Installation Of Right Hand Joystick
Troubleshooting
Right Console
Blade Lever And Cable Removal And Installation
Removal And Installation
Speed Control Lever Adjustment
Speed Control Lever Removal And Installation
Right Console
Swing Lock Lever Removal And Installation
Right Console Cover
Arm Rest Removal And Installation
Gauge Removal And Installation
Removal And Installation
Steering Lever And Pedals
Adjusting Linkage Rods
Removal And Installation

* Main Frame And Tracks

Blade
Removal And Installation
Track
Adjustment
Rubber Track Clearance
Rubber Track Removal And Installation
Steel Track Clearance
Steel Track Removal And Installation
Track Lug Height
Track Tension Adjustment
Track Damage Identification
Abrasion Of Embedded Metals
Abrasion Of The Track Roller Side
Cracks And Cuts On The Lug Side Rubber
Cracks Of The Lug Side Rubber Due To Fatigue
Cuts On The Edges Of Track Roller Side
Cuts On The Lug Side Rubber
Cutting Of Steel Cords
Lug Abrasion
Separation Of Embedded Metals
Separation Of Embedded Metals Due To Corrosion
Track Frame
Disassembly And Assembly
Recoil Spring Disassembly And Assembly
Track Idler
Assembly
Disassembly
Parts Identification
Track Roller
Assembly
Disassembly
Parts Identification
Travel Motor
Assembly
Disassembly
Parts Identification
Removal And Installation
Testing

* Electrical System

Alternator
Alternator Regulator Test
Alternator Output Test
Assembly
Belt Adjustment
Disassembly And Inspection
Parts Identification
Rectifier (Diode) Test
Rectifier Continuity (Diode) Test
Removal And Installation
Rotor Continuity Test
Rotor Ground Test
Stator Continuity Test
Stator Ground Test
Battery
Removal And Installation
Servicing The Battery
Buzzer
Removal And Installation
Cab Electrical
Cab Option
Diodes
Diode Location
Diode Replacement
Diode Testing
Electrical System
Description
Electrical Relays And Diodes

Fuse Arrangement
Fuel Level Sender
Testing
Removal And Installation
Gauges
Bulb Replacement
Removal And Installation
Horn
Removal And Installation
Assembly
Cleaning And Inspection
Disassembly And Assembly
Disassembly
Inspection And Repair
Removal And Installation
Parts Identification
Timer
Removal And Installation
Troubleshooting
Chart

* Engine Service

Air Cleaner
Removal And Installation
Crankshaft And Bearings
Removal And Installation
Servicing The Crankshaft And Bearings
Crankshaft Gear
Removal And Installation
Cylinder Bore
Checking The Cylinder Bore
Cylinder Head
Disassembly And Assembly
Removal And Installation
Servicing The Cylinder Head
Top Clearance
Engine
Removal And Installation
Engine Compression
Checking
Engine Flywheel
Flywheel Ring Gear
Removal And Installation
Fan Guard
Removal And Installation
Fuel Camshaft
Governor
Removal And Installation
Fuel Injector Nozzles
Checking The Injector Nozzles
Removal And Installation
Fuel Injection Pump
Checking The Injection Pump
Removal And Installation
Timing The Injection Pump
Fuel Shutoff Solenoid
Adjustment
Removal And Installation
Timer Module Removal And Installation
Glow Plugs
Checking The Glow Plug
Removal And Installation
Idler Gear And Camshaft
Removal And Installation
Servicing The Camshaft
Servicing The Idler Gear And Shaft
Muffler
Removal And Installation
Oil Pump
Checking Engine Oil Pressure
Oil Pump Service
Relief Valve
Removal And Installation
Piston And Connecting Rod
Connecting Rod Alignment
Removal And Installation
Servicing The Piston And Connecting Rod
Radiator
Removal And Installation
Rocker Arm And Shaft
Checking
Timing Gears
Checking Backlash
Timing Gearcase Cover
Removal And Installation
Troubleshooting
Chart
Valve Clearance
Adjustment
Valve, Valve Seat And Guide
Checking The Valve Guide
Reconditioning The Valve And Valve Seat
Valve Spring
Water Pump
Disassembly And Assembly
Removal And Installation

* Specifications

Antifreeze Solution
Propylene Glycol
Decimal & Millimeter Equivalents
Chart
Engine Specifications
Camshaft
Crankshaft
Crankshaft Regrind Data
Connecting Rods
Cylinders
Cylinder Head
Engine Bolt Torque
Fuel Injection Nozzles
Fuel Injection Pump
Oil Pump
Pistons
Piston Rings
Rocker Arms
Tappet
Thermostat
Timing Gear
Torque For General Metric Bolts
Valves
Valve Springs
Valve Timing
Engine Oil Specifications
Description
Fuel, Coolant And Lubricants
Chart
Hydraulic Excavator Specifications
Brakes
Controls
Cylinder Cycle Time
Digging Force
Drive System
Electrical
Engine
Hydraulic Cylinders
Hydraulic System
Lifting Capacity
Machine Dimensions
Refill Capacities
Std Track Shoes
Swing System
Undercarriage
Weights
Us To Metric Conversion
Chart