A VNA forklift is one of the hardest-working pieces of equipment in any warehouse. Operating in narrow aisles, lifting heavy loads to significant heights and often working across multiple shifts means every component is placed under constant stress.

Unfortunately, many businesses only arrange servicing once a fault has already developed. By that stage, what may have started as a minor issue can quickly become an expensive repair, unexpected downtime or even a safety risk.

Recognising the early warning signs allows warehouse managers to schedule maintenance before small problems become major failures. Preventative servicing not only reduces repair costs but also improves reliability, extends the life of your equipment and helps keep warehouse operations running smoothly.

Below are ten common Signs Your VNA Needs Servicing and should be professionally inspected.

1. Unusual Noises

Grinding, knocking, squealing or clicking noises should never be ignored.

These sounds can indicate:

• Worn bearings

• Chain wear

• Mast roller damage

• Hydraulic pump issues

• Loose components

The earlier these faults are investigated, the less likely they are to develop into expensive failures.

2. Slower Lifting Speeds

If the forks no longer lift as quickly as they used to, the truck may be suffering from:

• Low hydraulic performance

• Worn pumps

• Oil contamination

• Hydraulic leaks

• Blocked filters

Reduced lifting performance often develops gradually, making routine servicing particularly important.

3. Steering Doesn't Feel Right

Warehouse operators quickly notice when steering changes.

Watch for:

• Excessive play

• Heavy steering

• Poor tracking

• Inconsistent response

These symptoms may indicate steering component wear or electronic control issues.

4. Wire Guidance Problems

If your wire-guided VNA truck begins:

• Drifting

• Losing guidance

• Struggling to locate the wire

• Displaying guidance faults

the issue may not always be the truck itself.

Specialist engineers should inspect both the truck and the warehouse wire guidance system before faults become operational problems. Learn more about wire issues HERE

5. Hydraulic Oil Leaks

Even small leaks should be investigated.

Oil leaks can:

• Reduce lifting performance

• Create slip hazards

• Damage components

• Lead to complete hydraulic failure

Early repair is usually far cheaper than replacing major hydraulic components.

6. Battery Performance Is Declining

Electric VNA trucks rely heavily on battery condition.

Common warning signs include:

• Shorter operating times

• Slow charging

• Reduced performance

• Battery warning messages

• Overheating

Routine servicing helps identify battery issues before productivity is affected.

7. Mast Movement Feels Rough

A healthy mast should operate smoothly.

If operators notice:

• Jerky lifting

• Vibration

• Hesitation

• Mast sway

• Excessive movement

the truck should be inspected immediately.

8. Warning Lights or Fault Codes

Modern VNA forklifts constantly monitor their own systems.

Never ignore:

• Dashboard warning lights

• Error codes

• System alerts

Many electronic faults can be resolved quickly if diagnosed early.

9. Increased Downtime

If the truck seems to require more frequent repairs, it may simply be overdue for planned servicing.

Preventative maintenance is almost always more cost-effective than repeated reactive repairs.

10. Your Service Is Overdue

One of the biggest warning signs is simply time.

Waiting until something breaks often results in:

• Higher repair costs

• Unexpected downtime

• Lost productivity

• Safety concerns

Regular servicing keeps equipment operating efficiently throughout its working life.

Why Preventative Servicing Matters

A structured servicing programme helps:

✔ Reduce breakdowns

✔ Extend equipment lifespan

✔ Improve operator safety

✔ Lower repair costs

✔ Maintain productivity

✔ Protect warehouse operations

Rather than reacting to faults, preventative maintenance enables businesses to plan servicing around operational requirements and minimise disruption.

Frequently Asked Questions

Keep Your VNA Forklifts Performing at Their Best

Don't wait for a minor issue to become a costly breakdown. Whether you've noticed warning signs or simply want to keep your fleet operating safely and efficiently, Forklift Truck Depot provides specialist VNA forklift servicing, preventative maintenance and expert engineering support throughout the UK.