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Commando 3122 repair times and service schedule

Commando 3122: 155 bar · 37.5 l/min · cold water, diesel trailer / bowser pressure washer. Below are the recommended service intervals and guide labour times. The annual service takes about 1 h 30 min.

Specifications

TypeCold water, diesel
FormatTrailer / bowser
Pressure155 bar
Flow rate37.5 L/min (2250 L/h)
EngineLister LPW3 3-cylinder
StatusCurrent model
Model code3122

Service schedule and repair times

Every 6 months

OperationGuide timeHours
Air Filter Replacement10 min0.17 h
6-Month Intermediate Service1 h1 h

Every 12 months

OperationGuide timeHours
Spark Plug Replacement10 min0.17 h
Engine Oil Change15 min0.25 h
Fuel Filter Replacement15 min0.25 h
Pump Oil Change15 min0.25 h
Annual Full Service1 h 30 min1.5 h
Water Tank Clean / Disinfect45 min0.75 h
Trailer Annual Inspection (DVSA equivalent)1 h1 h
Trailer Brake Adjustment / Service1 h1 h
Annual Service — Trailer Cold Water2 h2 h

Every 24 months

OperationGuide timeHours
Engine Valve Clearance Adjustment40 min0.67 h

Repairs (as required)

OperationGuide timeHours
High-Pressure Hose ReplacementMembers
Recoil Starter ReplacementMembers
Unloader Valve ReplacementMembers
Diagnostic — Fault FindingMembers
Check Valve Replacement (set)Members
Carburettor Clean / RebuildMembers
Pump Seal Kit ReplacementMembers
Engine ReplacementMembers
Pump Rebuild (full)Members
Trailer Lighting RepairMembers
Tank Outlet / Ball Valve ReplacementMembers
Wheel Bearing Replacement (per side)Members

Guide times are for a competent technician with the correct parts and tools, and exclude travel. Always follow the manufacturer's service documentation. Specifications: manufacturer data.

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