What is included in a concrete mixer truck 250-hour service?

A 250-hour concrete mixer truck service is a minor service that includes draining and replacing engine oil (truck engine), replacing the engine oil filter, checking PTO oil level and condition, checking hydraulic oil level for the drum drive system, replacing the drum drive hydraulic filter, inspecting the drum for concrete buildup, inspecting drum interior wear (spiral fins), checking drum roller condition and alignment, inspecting the ring gear and pinion for wear or play, inspecting chutes, extension chutes and hoppers, checking the water system (tank, pump, hoses, nozzle), greasing drum drive bearings and drum support rollers/trunnion, checking PTO engagement and disengagement, inspecting chassis/truck systems (brakes, tyres, lights), checking all safety guards around the drum drive and testing the emergency drum stop. It takes approximately 2 to 3 hours.

How often should a concrete mixer truck be serviced?

Concrete mixer trucks should follow the engine manufacturer service schedule (typically every 250 engine hours or 10,000-15,000 km) for the truck chassis and engine. The drum drive system (hydraulics, ring gear, rollers, bearings) should be serviced at the same interval. Daily cleaning of the drum interior after each pour is essential to prevent concrete buildup that accelerates wear on spiral fins and reduces drum capacity. Always refer to both the truck and mixer body manufacturer service manuals.

Why is drum interior inspection important?

Concrete buildup inside the drum reduces mixing capacity and adds weight, increasing fuel consumption and reducing payload. Worn or damaged spiral fins (flights) reduce mixing efficiency and can cause segregation of the concrete mix. Regular inspection at 250-hour intervals allows you to schedule drum cleaning or fin repair before performance is significantly affected. Severe buildup may require mechanical removal or drum replacement.

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Free concrete mixer truck 250-hour service checklist

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A step-by-step 250-hour (minor) service procedure for concrete mixer and agitator trucks. Covers engine oil and filter change, PTO inspection, drum drive hydraulic system, drum interior wear, drum rollers, ring gear and pinion, chutes, water system, grease points, chassis/truck systems, safety guards and emergency drum stop testing. Includes fluid specifications, parts list and technician sign-off. This page explains what the service involves, how to perform it, and offers a free PDF-ready form you can download straight away.

Last updated: 2026-03-26 · MapTrack

Jarrod Milford

Commercial Director

Updated 26 March 2026

How to use: Fill equipment details and hour reading, then work through each service action. Tick Done as each task is completed. Record fluid quantities and part numbers used. Set the next service due hours and sign off.

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What is a concrete mixer truck 250-hour service?

A 250-hour service is a scheduled preventive maintenance procedure for concrete mixer and agitator trucks. It covers both the truck engine/chassis and the specialised mixing equipment: the drum drive hydraulic system, mixing drum, rollers, ring gear, chutes, water system and PTO. Unlike a daily washout (which removes residual concrete after each pour), the 250-hour service involves actual maintenance actions: draining and replacing engine oil, replacing hydraulic filters, inspecting drum wear, greasing bearings and testing safety systems. It is typically performed by a qualified mechanic or fitter and takes approximately 2 to 3 hours.

Benefits of scheduled concrete mixer servicing

Reduced breakdowns: regular oil, filter and hydraulic maintenance prevent engine and drum drive failures that cause missed pours and idle batching plant time.
Extended drum life: inspecting spiral fins, rollers and ring gear at regular intervals catches wear early, extending the life of the drum assembly.
Lower repair costs: a 250-hour service costs a fraction of replacing a worn drum or failed hydraulic motor.
Operator safety: testing the emergency drum stop, checking safety guards and inspecting the PTO reduces the risk of entanglement or crush injuries around the drum drive.
Compliance: documented service records demonstrate that equipment is maintained to WHS standards, supporting insurance and regulatory obligations.
Resale value: a complete service history increases the vehicle's value at trade-in or auction.

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Service actions included in the 250-hour procedure

This service procedure covers 17 service actions across 7 system areas:

Engine and PTO: drain and replace engine oil, replace oil filter, check PTO oil level and condition, check PTO engagement and disengagement.
Drum drive hydraulics: check hydraulic oil level (drum drive system), replace drum drive hydraulic filter.
Drum and mixing system: inspect drum for concrete buildup, inspect drum interior wear (spiral fins), check drum roller condition and alignment, inspect ring gear and pinion, inspect chutes, extension chutes and hoppers.
Water system: check water tank, pump, hoses and nozzle.
Lubrication: grease drum drive bearings, grease drum support rollers and trunnion.
Chassis and truck systems: inspect brakes, tyres and lights.
Safety: check all safety guards around drum drive, test emergency drum stop.

Fluid specifications

General fluid specifications for concrete mixer/agitator trucks. Capacities vary by truck and drum size.

System	Type / Grade	Approx. Capacity
Engine oil	15W-40 CI-4 / CK-4	20 - 40 L
Hydraulic oil (drum drive)	ISO VG 46	30 - 60 L (system)
Drum drive gear oil	EP 220 or per manufacturer	Per manufacturer
Grease	EP2 lithium complex	As required
Water system	Clean water	Tank capacity varies

Specifications are general guidelines. Always refer to the manufacturer's service manual for your specific make and model.

Parts and consumables

Have the following parts and consumables ready before starting the 250-hour service:

Engine oil (15W-40 CI-4/CK-4) - 20-40 litres
Engine oil filter - 1
Hydraulic filter (drum drive) - 1
EP2 grease cartridges - 2-4
Water pump filter/strainer - 1
Rags, drip tray and waste oil container

Look up part numbers in the manufacturer's parts manual for your specific make and model before ordering.

How to perform a concrete mixer truck 250-hour service

Park the mixer truck on level ground, ensure the drum is empty and clean, disengage the PTO and shut down the engine. Allow the engine to cool before draining oil.
Record the equipment details and current hour meter reading at the top of the service procedure form.
Start with the engine and PTO section: drain the old engine oil, replace the oil filter, fill with new oil, then check PTO oil level and test PTO engagement.
Check hydraulic oil level for the drum drive system and replace the drum drive hydraulic filter.
Inspect the drum exterior and interior for concrete buildup and spiral fin wear. Check drum roller condition, alignment, ring gear and pinion. Inspect chutes and hoppers.
Check the water system: tank level, pump operation, hose condition and nozzle function.
Grease drum drive bearings and drum support rollers/trunnion with EP2 lithium complex grease.
Inspect chassis/truck systems: check brakes, tyres and lights. Check all safety guards around the drum drive. Test the emergency drum stop.
Start the engine, engage the PTO and rotate the drum. Check for leaks, abnormal noises or vibration. Record any defects in the notes section.
Set the next service due hours. Sign off and update the vehicle's maintenance log.

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Frequently asked questions

What is included in a concrete mixer truck 250-hour service?: A 250-hour concrete mixer truck service is a minor service that includes draining and replacing engine oil (truck engine), replacing the engine oil filter, checking PTO oil level and condition, checking hydraulic oil level for the drum drive system, replacing the drum drive hydraulic filter, inspecting the drum for concrete buildup, inspecting drum interior wear (spiral fins), checking drum roller condition and alignment, inspecting the ring gear and pinion for wear or play, inspecting chutes, extension chutes and hoppers, checking the water system (tank, pump, hoses, nozzle), greasing drum drive bearings and drum support rollers/trunnion, checking PTO engagement and disengagement, inspecting chassis/truck systems (brakes, tyres, lights), checking all safety guards around the drum drive and testing the emergency drum stop. It takes approximately 2 to 3 hours.
How often should a concrete mixer truck be serviced?: Concrete mixer trucks should follow the engine manufacturer service schedule (typically every 250 engine hours or 10,000-15,000 km) for the truck chassis and engine. The drum drive system (hydraulics, ring gear, rollers, bearings) should be serviced at the same interval. Daily cleaning of the drum interior after each pour is essential to prevent concrete buildup that accelerates wear on spiral fins and reduces drum capacity. Always refer to both the truck and mixer body manufacturer service manuals.
Why is drum interior inspection important?: Concrete buildup inside the drum reduces mixing capacity and adds weight, increasing fuel consumption and reducing payload. Worn or damaged spiral fins (flights) reduce mixing efficiency and can cause segregation of the concrete mix. Regular inspection at 250-hour intervals allows you to schedule drum cleaning or fin repair before performance is significantly affected. Severe buildup may require mechanical removal or drum replacement.
Is the template free to use without MapTrack?: Yes. Download and use the concrete mixer truck 250-hour service procedure for free. Open the file and use your browser's Print, then Save as PDF. No MapTrack account required. If you later want digital service procedures linked to each vehicle with scheduling by hours, cost tracking and alerts, we would be happy to show you MapTrack.

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