New Wheel Loader Running-In Period: 6 Maintenance Rules for the First Stage of Operation
A new wheel loader may be ready for work when it leaves the factory, but the first stage of operation still deserves special attention.
During the running-in period, drivetrain components, hydraulic systems, pins, bushings, fasteners and other moving parts begin working together under real operating conditions.
Correct operation and maintenance during this period can help operators identify abnormal conditions early and establish good maintenance habits for the rest of the machine's service life.
At KLIONCE, new-machine operation should always follow the operating and maintenance instructions supplied for the specific loader model.
What Is the Wheel Loader Running-In Period?
The running-in period is the early operating stage after a new machine enters service.
During this stage, newly assembled mechanical components begin operating under load, lubricants circulate through working systems and fasteners experience vibration from actual job-site use.
The purpose of careful operation during this period is not simply to operate the machine slowly. It is to monitor the loader closely while gradually placing it into normal working conditions.
Why the First Operating Stage Matters
New machinery contains many components that have not yet accumulated significant operating hours.
Pins, bushings, bearings, gears, hydraulic components and sealing surfaces all begin experiencing real-world load, vibration, heat and contamination.
Small issues such as a loose fastener, minor leak or incorrect fluid level are easier to correct when discovered early.
Ignoring these signs can allow a minor problem to develop into unnecessary wear or downtime.
1. Make Sure the Operator Understands the Machine
The first rule is operator familiarity.
Before operating a new loader, the driver should understand the controls, warning indicators, operating limits, maintenance points and normal startup and shutdown procedures.
The operator should read the machine's operation and maintenance instructions rather than relying entirely on experience with another loader.
Control layouts, hydraulic functions and maintenance requirements can differ between models.
Know the Controls Before Starting Work
The operator should identify the steering controls, service brake, parking brake, accelerator, loader controls, instrument panel and emergency procedures before beginning productive work.
Understanding warning lights and gauges is especially important because these indicators may provide the first sign of an abnormal operating condition.
A new machine should never be treated as identical to an older loader simply because both perform similar jobs.
2. Avoid Unnecessarily Severe Operation
During the early operating stage, avoid placing the machine immediately into the most demanding possible duty cycle unless the manufacturer specifically permits it.
Repeated maximum-load operation, aggressive acceleration, excessive travel speed or continuous heavy work can generate additional heat and mechanical stress.
The exact running-in limits vary by model, so rated-load restrictions and operating-hour requirements should follow the specific KLIONCE machine manual.
Gradually Introduce Normal Workloads
A practical approach is to begin with normal light-to-moderate work while monitoring machine behavior.
As operating hours increase and inspections confirm that the machine is functioning normally, the loader can move toward its intended working cycle according to the manufacturer's instructions.
The goal is controlled operation, not deliberately underusing the machine indefinitely.
3. Watch the Instruments and Warning Indicators
Operators should monitor the instrument panel regularly, especially during the first days of operation.
Pay attention to temperature, warning lights and any other available machine-status indicators.
If the loader begins behaving differently from normal, stop and investigate rather than continuing until a more serious failure occurs.
Do Not Ignore New Sounds or Vibrations
An unfamiliar sound does not automatically mean a major problem, but it should not be ignored on a new machine.
Listen for unusual knocking, rubbing, squealing or hydraulic noise.
Also pay attention to unexpected vibration through the steering system, seat, loader arms or drivetrain.
If the cause cannot be identified safely, the machine should be inspected before returning to demanding work.
4. Check Lubricants and Working Fluids Frequently
Fluid inspection is particularly important during the early operating period.
Operators should check the relevant engine oil, coolant, hydraulic oil, fuel system and other service fluids according to the maintenance manual.
Fluid levels should remain within the specified range and visible leakage should be investigated.
Inspect for Leaks During the Walk-Around
Before starting the loader, walk around the machine and inspect the ground underneath it.
Look around hydraulic hoses, cylinders, fittings, engine components, axles and other visible areas for signs of leakage.
A small wet area can provide an early warning that a connection needs attention.
Do not simply add more fluid repeatedly without identifying why the level is dropping.
Lubrication Is Essential
Loader linkage points operate under repeated movement and load.
Grease helps reduce friction and protect pins and bushings from premature wear.
During the early operating period, follow the lubrication intervals specified for the machine carefully.
Working in mud, dust, sand or wet conditions may also require additional attention to lubrication and cleaning.
5. Keep the Loader Clean and Check Fasteners
A clean machine is easier to inspect.
Mud, oil, dust and material buildup can hide leaks, damaged hoses and loose components.
Regular cleaning therefore supports both maintenance and inspection.
Why Fasteners Deserve Extra Attention
New equipment experiences vibration, thermal cycles and structural loading as it begins regular work.
Accessible fasteners should be inspected according to the maintenance schedule.
If a bolt or connection is found loose, use the correct tightening procedure and specified torque where applicable.
Random over-tightening can damage threads or components, so manufacturer specifications should be followed.
Check Loader Pins and Linkage Areas
Bucket pins, loader-arm pivots and articulation areas experience frequent movement.
During inspection, look for missing retainers, unusual movement, insufficient lubrication or other visible abnormalities.
Early attention to these areas can help reduce unnecessary wear.
6. Complete the Required First Service
The end of the running-in period should not be treated as simply another working day.
Many machines require an early inspection or first-stage service after a specified number of operating hours.
The exact service interval and required oil, filter, adjustment or inspection items depend on the model.
Always follow the maintenance schedule supplied with the machine.
Record the Operating Hours
Maintenance schedules are often based on machine operating hours.
Operators and fleet managers should record the hour-meter reading when the loader enters service and monitor it regularly.
This prevents the first maintenance interval from being missed simply because the machine appears new.
KL906 Compact Wheel Loader Example
The KLIONCE KL906 is a compact loader with a rated load of 600 kg and a standard bucket capacity of 0.3 m³.
It has an operating weight of approximately 1935 kg and uses a Yanmar engine rated at 17.8 kW.
The loader uses hydrostatic drive and has a dump height of 2070 mm.
Its overall dimensions are approximately 3785 × 1120 × 2210 mm, making it suitable for compact working environments.
Do Not Confuse Rated Capacity with Running-In Guidance
A loader's rated load describes its designed load-handling capacity under specified operating conditions.
Running-in recommendations are separate operating instructions for the early stage of machine use.
Operators should not invent their own percentage limit based only on rated capacity.
Always follow the specific machine manual for temporary workload limitations during the running-in period.
Warm the Machine Before Heavy Work
After startup, allow the engine and hydraulic system to reach suitable operating conditions before demanding rapid or heavy cycles, particularly in cold environments.
Avoid immediately applying maximum engine speed or aggressive hydraulic movement after a cold start.
Controlled warm-up supports proper fluid circulation throughout the machine.
Avoid Excessive Idling
Running-in does not mean allowing the machine to idle for long periods.
Unnecessary idling adds engine hours without productive work and can complicate maintenance scheduling.
Operate the loader normally within the manufacturer's early-use recommendations rather than leaving it stationary with the engine running for extended periods.
Monitor Tire Condition
Tires should be included in daily inspection from the first day.
Check for visible damage, abnormal wear and appropriate inflation according to the specified tire requirements.
Incorrect tire condition can affect traction, steering and machine stability.
Inspect the Cooling System
Cooling performance becomes especially important when a new loader begins working under load.
Keep cooling-air passages clean and inspect coolant level according to the maintenance procedure.
Dust, agricultural debris and construction material can restrict airflow around cooling components.
Pay Attention to Hydraulic Temperature and Response
The hydraulic system should operate smoothly and predictably.
If loader-arm movement becomes unusually slow, jerky or noisy, stop and investigate the cause.
Visible hydraulic leakage, abnormal temperature or repeated warning indications should never be considered normal simply because the machine is still in the running-in stage.
Train More Than One Operator Consistently
If several people will operate the same loader, they should follow the same startup, inspection and maintenance procedures.
Different operating habits can make it more difficult to identify abnormal machine behavior.
A simple daily checklist can help standardize inspection across shifts.
Create a Daily Running-In Checklist
A useful early-operation checklist can include fluid levels, visible leakage, tire condition, lubrication points, bucket and linkage components, hoses, warning indicators, brake response and steering condition.
The operator can also record machine hours and any unusual observations after each shift.
This creates a basic service history from the first day of ownership.
What Should You Do If a Problem Appears?
If an abnormal condition is found, do not continue operating simply to complete the day's workload.
Continuing to use equipment with insufficient lubrication, overheating, hydraulic leakage or loose components can turn a manageable maintenance issue into more serious damage.
Stop the loader, identify the cause and arrange appropriate inspection or service before normal work resumes.
The Running-In Period Builds Long-Term Maintenance Habits
The first operating stage is valuable not only because the machine is new but because it establishes how the equipment will be maintained in the future.
Operators who develop strong inspection, lubrication and record-keeping habits during the running-in period are more likely to identify problems early throughout the machine's service life.
For additional long-term maintenance guidance, read How to Maximize the Lifespan of Your Wheel Loader.
Explore the full KLIONCE wheel loader range for construction, agriculture and material-handling applications.
