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Leyland

Olympian Bus
 

 

Leyland Olympian Bus
Workshop Repair Manual

 
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This is a very comprehensive Factory Workshop Manual suitable for the home mechanic or professional technician.

It is easy to understand with step by step instructions and lots of drawings/photos for you to undertake any task on your Leyland Olympian.

The following Leyland models are covered by this manual:

  • Leyland Olympian ON 6LXB 1R
  • Leyland Olympian ON 6LXB 2R
  • Leyland Olympian ON TL11 2L

Below is a comprehensive list showing what this manual covers:

Miscellaneous Information

  • Model Range
  • Approximate Vehicle Weights
  • Approximate Vehicle Dimensions
  • General Data

Maintenance

  • Lubrication Diagram
  • Maintenance Schedule
  • Maintenance and Lubrication Procedures
    • Batteries
    • Gearbox and Charged Coupling Oil Level Check and Change
    • Gearbox Voith D851 Oil Level Check, Change, Load Transmitter
    • Front Hub Greasing
    • Rear Hub Greasing
    • Rear Axle Topping up/ Draining/Filling
    • Induction Air Filter Element renewal
    • Air Suspension Air Filter
    • Air Suspension Leveling Valve Hydraulic Fluid level
    • Air Suspension Isolator Valve Filter Cleaning
    • Automatic Lubrication Reservoir Filling
    • Fuel Sedimenter Draining/Cleaning
    • Hydraulic System Fluid Change
    • Hydraulic Reservoir Filter
    • Hydraulic System Priming
    • Alternator Drive Belt Adjustment
    • Compressor Drive Belt Adjustment
    • Starter Motor Lubrication
    • C.A.V. Alternator Lubrication
    • Wheel Removal and Fitting
    • Condenser Drain Valve Cleaning
  • Valve Clearances (TL 11/15/2)
  • Injectors (TL 11/15/2)
  • Fuel Filter Element (TL 11/15/2)
  • Fuel System Bleeding (TL 1115/2)
  • Engine Oil Changing (TL 11/15/2)
  • Engine Oil Filter Element (TL 11/15/2)
  • Cooling System Draining, Topping up, Filling

Lubricants and fluids

  • Engine Lubricants
  • Leyland Specifications
  • Fuel Oil
  • Anti-Freeze Fluids and Inhibitors
  • Air Suspension Leveling Valve

Special tools

Torque Tightening Figures

Engine (TL 11/15/2)

  • Data
  • Removal
  • Refit
  • Fault Finding

Cooling System

  • Data
  • Torque Tightening Figures
  • Removal and refitment
    • Shutter Assembly
    • Water Pump
    • Radiator
    • Header tank
    • Cylinder Head Water Outlet Pipe
    • Thermostats
    • Oil Cooler
  • Testing
    • Thermostats
  • Overhaul
    • Water Pump
    • Oil Cooler

Engine Compartment Ventilation Fan Hydraulic System

  • Data
  • Description
  • Removal and Refitment
  • Fault Diagnosis
  • Overhaul
    • Hydraulic Pump

Engine Cooling Fan Hydraulic System

  • Data
  • Description
  • Overhaul
    • Switching valve
    • Thermostatic Valve
  • Testing
    • Switching Valve
    • Thermostatic Valve

Cylinder Head

  • Data
  • Removal and Refitment
    • Rocker Shaft Assembly
    • Cylinder Head
    • Valve Springs
  • Adjustment
    • Valve Clearances
  • Overhaul
    • Cylinder Head
    • Valve Seat Insert

Crankcase Assembly

  • Data
  • Removal and Refitment
    • Tappets and Cam Followers
    • Crankshaft Damper
    • Crankshaft Pulley and Front Oil Seal
    • Timing Gear Case
    • Timing Gear Backplate
    • Camshaft
    • Oil Sump
    • Oil Pump
    • Oil Filter
    • Connecting Rod Big-End Bearings
    • Main Bearings and Thrust Washers
    • Connecting rod and Piston
    • Cylinder Liner
    • Crankshaft Rear Oil Seal
    • Crankshaft
  • Overhaul
    • Crankshaft Regrind
    • Connecting Rod and Piston
    • Oil pump

Fuel System

  • Data
  • Removal and Refitment
    • Injection Pump
    • Fuel Lift Pump
    • Injector
    • Fuel System (Bleeding)
    • Throttle Control Valve
  • Adjustment
    • Throttle Linkage
    • Stop Linkage
  • Overhaul
    • Fuel Injection Pump

Gearbox

  • Removal and Refitment
  • Leyland Fully Charged Hydraucyclic
  • Voith 851

Propeller Shaft

  • Removal and Refitment

Propeller Shaft with Yoke Coupling

  • Removal and Refitment
  • Fault Diagnosis
  • Overhaul

Gearbox - Leyland Hydraucyclic, Fully Charged

  • Data
  • Description
  • Brake Band Adjustment
  • Fault Diagnosis
  • Overhaul

Electro - Hydraulic Valve Block

  • Description
  • Testing
  • Removal and Refitment

Retarder Valve block - With Two Stage Air Cylinder

  • Data
  • Description
  • Testing
  • Adjustment
  • Removal and Refitment

Note: Refer to Voith Literature for Overhaul of Voith D851 Fully Automatic Gearbox

Front Axle

  • Removal and Refitment
  • Leyland Axle Beam
  • Leyland front Axle

Front Axle - Leyland Beam type

  • General Information
    • Data
    • Camber and Caster Angles
  • Overhaul
    • Front Hubs
    • Stub Axle
    • Renewing Stub Axle Bushes
    • Renewing Wheel Stubs
  • Power Assisted Steering Gear
    • Removal and Refitment
    • ZF 8043 955 132 Steering Box
    • Steering Column Housing
    • Steering Column Shaft and Universal Joints
    • Dismantling Steering Column Housing
    • Setting the Steering Limiter valves

Power Assisted Steering Gear - ZF 8043

  • General Information
    • Data
    • Description
    • Operation
    • Periodic Inspections and Fault Finding
    • Fault Diagnosis
  • Overhaul
    • Dismantling Steering Box to Major Components
    • Checking and Adjusting the Hydraulic Centre

Power Steering Pump and Flow Control System

  • Removal and Refitment
    • Power Steering pump
    • Flow Control Valve Assembly
    • Reservoir
    • Testing the Steering System Components
  • Power Steering Pump - Plessey

    • General Information
      • Data
      • Description
      • Operation
    • Overhaul
  • Test Connection
    • General Information
      • Data
      • Description
      • Operation
    • Overhaul
    • Testing
  • Flow Control Valve assembly
    • General Information
      • Data
      • Description
      • Operation
    • Overhaul
    • Testing
  • Steering Linkage
    • Removal and Refitment
      • Relay Arm Assembly
      • Draglinks and Track-rods
  • Steering Linkage
    • General Information
      • Data
    • Overhaul
      • Relay Arm and Mounting Bracket Assembly
      • Draglinks and Track-rods
      • Setting the Steering Linkage
      • Draglink and Track-rod Adjustment
      • Wheel Stop Setting
Rear Axle
  • Removal and Refitment
    • Leyland with Drop Centre Casing
  • General Information
    • Data
  • Removal and Refitment
    • Axle Shafts
  • Overhaul
    • Hubs
    • Rear Axle Unit
Brakes
  • General information
    • Data
    • Description
    • Diagrammatic Layout of Brake system
    • Location of Brake System Components
    • Braking System Fault Diagnosis
  • Brake Assemblies
    • Description
    • Removal and Refitment of Brake shoes
    • Removal and Refitment of Brake Camshafts
  • Slack Adjuster (S.A.B. Automatic type)
    • Description
    • Removal and Refitment
    • Overhaul
  • Hand Control valve
    • Description
    • Removal and Refitment
    • Testing and rebuilding valve
  • Air Compressor
    • Description
    • Fault Diagnosis
    • Removal and Refitment
    • Overhaul
  • Unloader valve
    • Description and Operation
    • Removal and refitment
    • Overhaul
    • Testing
    • Adjustment
  • Foot brake Valve
    • Description
    • Operation
    • Removal and Refitment
    • Testing
    • Overhaul
    • Adjustment
    • Bench Testing
  • Single Diaphragm Brake Chambers
    • Removal and Refitment
    • Testing
    • Overhaul
  • Spring Brake Actuators (Clayton Type 30)
    • Removal and Refitment
    • Overhaul
    • Testing
  • Spring Brake Actuator (Westinghouse Type 30)
    • Removal and Refitment
    • Overhaul
    • Testing
  • Relay Valve
    • Description and Operation
    • Overhaul

Electrical

  • Electrical System General Information
    • Description
    • Routine maintenance
    • Jump Starting
    • Driver Controls
    • Warning/ Information Lights
    • Front Junction Box
    • Rear Junction Box (Upper)
    • Batteries
    • Isolation Switch
    • Steering Column Combination Switch
    • Push Button Switches
    • Start/Run Switch
    • Exterior Lighting Switches
    • Coolant Temperature Switch
    • Oil Pressure Switch
    • Lock-Out Over-ride Switch
    • Brake Light Switch
    • Accelerator Interlock Valve
    • Warning Buzzer
    • Micro Switches
    • Wiring Diagrams
  • Lead Acid Batteries
    • Filling of Batteries
    • Mixing Electrolyte
    • Battery Charging
    • Testing
  • Alkaline Batteries
    • Routine Precautions
    • Operation
    • Care of Batteries in Service
    • Changing Electrolyte
    • Repairs
    • Filling and Charging
  • Butec Charging System (A100 Alternator)
    • Data
    • Description
    • Precautions
    • Removal and Refitment
    • Maintenance
    • Lubrication
    • Overhaul
      • Dismantling
      • Inspection and testing
      • Reassembly
      • Bench Testing
    • Voltage Regulator Type R102
      • Data
      • Description
      • adjustment
      • Removal and Refitment
      • Fault Detection
  • CAV Charging System (AC203 Alternator)
    • Data
    • Description
    • Removal and Refitment
    • Service Precautions
    • Maintenance
    • Lubrication
    • Overhaul
      • Dismantling
      • Inspection
      • Bearing Renewal
      • Slip-Ring Renewal
      • Reassembly
      • Testing
    • Voltage Regulator
      • Removal and Refitment
    • Charging System Fault Detection
    • Fault Diagnosis
  • Butec Starter Motor Type MS1A
    • Data
    • Description
    • Operation
    • Maintenance
    • Fault Tracing
    • Overhaul
      • Removing the Solenoid Switch
      • Dismantling the Switch
      • Dismantling the Starter Motor
      • Cleaning and Inspecting
      • Reassembling the Starter Motor
      • Abutment Test

Suspension and Chassis Equipment

  • Air Suspension System
    • Data
    • Torque Tightening Figures
    • Description
    • Operating Test
    • Adjustment of vehicle Ride Height
    • Removal and Refitment of:
      • Spring Location Link
      • Air Springs
      • Levelling valve
      • Isolator Valve
  • Shock absorbers
    • Data
    • Description
    • Removal and Refitment
  • Automatic Lubrication System
    • Data
    • Description
    • Maintenance
    • Overhaul
    • Fault Finding Chart
    • Testing

Body

  • Glazing
    • Description
    • Removal and Refitment of Windows
  • Doors
    • Description
    • Operation
    • Removal and refitment of:
      • Entrance/ Exit Door
      • Drive Shaft Assembly
      • Door Pillar Tube Assembly
      • Door Actuator
      • Double Pilot Air Bleed Valve
      • Air Filter - Regulator Valve
      • Driving Position Door Operating Button Assembly
      • Internal Emergency Door Operating Button Assembly
      • External Emergency Door Operating Button Assembly
    • Overhaul - Entrance/Exit Door and Equipment
      • Door Actuator
      • Fault Diagnosis
    • Removal and Refitment - Emergency Doors and Engine Access Doors
      • Emergency Door - Lower Section
      • Emergency Door Lower Section - Locks, Handles and Linkages
      • Rear Access Doors - Engine Compartment
  • Windscreen Wipers and Washers
    • Description
    • Removal and Refitment of:
      • Wiper Blades
      • Wiper Arms
      • Wiper Motor Assembly
      • Swivel Shaft and Tension Plate Assembly

 

 
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