Johnston VT551 - Page 46

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Page Issue 02Chapter - Electrical System9:20

VT551 - Maintenance

VM Engine Diagram - SE309z01

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Maintenance2
Page Issue Levels3
Section Hydraulic System4
Water System5
Scheduled Maintenance7
Regular Maintenance8
Safety Precautions8
Security of Sweeping Equipment9
Circuit Diagrams9
Fluid Finder - Diagram Sf300Z0310
Diagram Index - Se300Z0111
Maintenance and Adjustment Instructions12
Auxiliary Engine - Fuel System Bleeding12
Throttle Settings12
Page Issue 01 Chapter - Scheduled Maintenance13
Renewing the Suction Filter13
System Draining13
Renewing the Return Filter13
Hydraulic Oil Return Filter13
Filter Regulator Unit14
Pneumatic Cylinder Maintenance14
Hydraulic Cylinder Maintenance14
Cleaning the Vehicle14
Table of Contents15
Hydraulic System15
Circuit Pressures16
Brush Pressure16
Water System17
- Suction Fan17
- Hopper Raise17
- Hopper Lower17
- Fan Pump18
- Standby18
- Main Operating Pressure18
- Valve Identification19
- Hydraulic System Initial Operation19
- Hydraulic Tank Connections - Diagram Sh301A0220
- Single Sweep - Diagram Sh302Z0221
- Dual Sweep - Diagram Sh303Z0222
- Suction Fan / Load Discharge - Diagram Sh304A0123
- Pump Services - Diagram Sh306A0224
- Emergency Hand Pump - Diagram Sh307Z0125
- Introduction General Description27
- Electrical System27
- General Description28
- System Description28
- Relay/Fuse Box28
- Fuse Ratings28
- Component Identification29
- Relays30
- Fuses31
- Connectors - Numeric32
- Connectors Alphanumeric33
- Electrical Components Diagram - Se300Z0235
- Electrical Components Diagram - Se300Z0336
- System Map Diagram - Se301Z0137
- Relay and Fuse Box Diagram 24 Volt - Se302Z0138
- Relay and Fuse Box Diagram 12 Volt - Se302Z0239
- Supawash48
- Supawash Unloader Valve - Pressure Setting48
- Hydrant Filter49
- Pressure Setting49
- Solenoid Valves49
- Relief Valve49
- Piping Diagram - Low Pressure System50
- Illustration Component Key51
- Water Valve Station Utilisation51
- Single Sweep Low Pressure Water - Diagram Sw301A0252
- Water System Low Pressure Dual Sweep - Diagram Sw302A0153
- LP / HP Valve Location54
- Water Pump Repair55
- Seal and Valve Maintenance Instructions56
- Exploded View of Pump59
- High Pressure Water - Diagram Sw303Z0260
- Pneumatic System61
- Pneumatic Pipe Colours62
- Air Filtration and Regulator (Fr)64
- Pneumatic Valve Island64
- To Replace a Valve Segment64
- Pneumatic Valve Island Configuration65
- Regulator66
- Wide Sweep Brush Regulator Maintenance66
- Maxigap Single Sweep - Diagram Sp301Z0267
- Maxigap Dual Sweep - Diagram Sp302Z0368
- Mesh Shakers and Littasnatch Option - Diagram Sp305Z0169
- Wearing Items71
- Wearing Parts Replacement Instructions72
- Fan Impeller72
- Wear Plate73
- Refitting73
- Intake Duct Flap73
- Intake Duct74
- Flexible Intake Trunking74
- Intake Seat75
- Suction Nozzle Wheel75
- Tyre - Suction Nozzle Wheel75
- Nozzle Wheel Bearings76
- Suction Nozzle Rubbers76
- Channel Brush76
- Wide Sweep Brush Core Assembly76
- Wide Sweep Brush Fills77
- Plastic Throw Away Stock77
- Replaceable Segment Option77
- Remove and Refit Procedures79
- Wide Sweep Brush Motor80
- Wide Sweep Brush Motor - Removal and Refitting80
- Water Pump - Removal and Refitting80
- Channel Brush Motor - Removal and Refitting81
- Channel Brush Cylinder - Removal and Refitting81
- Lifting or Removal of the Body82
- Body Tip Ram - Removal and Refitting82
- Radiator - Removal and Refitting83
- Hydraulic Pump - Removal and Refitting83
- Fan Impeller - Removal83
- Fan Case and Fan Motor - Removal and Refitting84
- Fan Drive Motor - Removal and Refitting84
- Fuel Tank Lh (Red Diesel) - Removal and Refitting85
- Fuel Tank Rh (White Diesel) - Removal and Refitting85
- Engine Actuator - Removal and Refitting85
- Fault Diagnosis87
- Hydraulic Systems88
- Service Tools95
- Health and Safety101
- Batteries102
- Health and Safety Precautions102
- Anti Freeze102
- Sharp Objects Warning102
- Jump Starting Procedure103
- Chemical Materials103
- Reminders104
- Dusts105
- Electric Shocks105
- Exhaust Fumes105
- Fire and Welding105
- First Aid106
- High-Pressure Air and Lubrication Equipment106
- Oils and Greases106
- Solvents107
- Suspended Loads107
- Workshop Tools and Equipment107

Johnston VT551 - Page 46

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