Forklift Repair & Maintenance: Common Problems and Warning Signs

A forklift can still start, lift and move while a fault quietly gets worse. A small hydraulic leak, a change in braking, or stiffer steering can be easy to miss during a busy shift, but these signs often point to a problem that needs attention. 

Good forklift maintenance catches faults early. Knowing the warning signs helps operators decide when a machine should be checked rather than pushed through another shift.

Disclaimer: This article provides general information about forklift repair and maintenance. It does not replace the forklift manufacturer’s instructions, workplace procedures, risk assessment or advice from a suitably competent person. Requirements can vary by equipment and workplace, so check what currently applies to yours.

What Are the Most Common Forklift Problems?

Forklift problems can affect the hydraulic system, brakes, steering, mast, forks, tyres, battery, electrical components or engine, depending on the machine type.

The cause is not always obvious from the first symptom. Slow lifting could come from the hydraulic system, while starting trouble could be electrical, battery, fuel or engine-related. A warning sign is a reason to inspect the machine, not a diagnosis on its own.

WorkSafe WA’s forklift checklist calls for attention to brakes, steering, hydraulics and tyres, along with pre-operational checks of the mast, chains, tynes, hoses, controls and warning devices.

10 Warning Signs Your Forklift May Need Repairs

1. The forks lift slowly or jerk

If the forks take longer to rise, move unevenly or behave differently under load, something has changed in the lifting system.

Possible causes include a hydraulic leak, low or contaminated fluid, worn seals, a pump issue or another hydraulic fault. The exact cause needs checking rather than assuming.

A change in lifting behaviour matters because a forklift needs predictable movement to position a load safely.

2. You notice a hydraulic oil leak

Oil around a hose, fitting or cylinder is worth reporting.

Hydraulic components can leak through damaged hoses, worn seals, loose fittings or component damage. A small patch of oil may not look serious, but continued use can lower fluid levels and affect lifting or tilting.

Hydraulic lines and oil leaks are part of the standard forklift pre-start checks.

If a leak is affecting lifting or load control, the forklift should be assessed before it goes back into service.

3. Braking feels different

Take note if the forklift takes longer to stop, pulls to one side, makes an unusual noise while braking or feels different through the pedal.

A brake problem can develop gradually, so any change in normal stopping behaviour matters.

WorkSafe WA’s forklift guidance includes service and parking brakes in pre-start checks, and its checklist also calls for maintenance records covering brakes.

A forklift with a brake fault should not simply be kept running until its next scheduled service.

4. Steering feels heavy or loose

A forklift needs predictable steering, especially when working around racking, pedestrians, loading areas or other equipment.

If the steering suddenly feels heavier, looser or less responsive, report the change. The cause could be mechanical, hydraulic or elsewhere in the steering system.

Because the symptom alone can’t identify the failed part, a proper inspection is the safer way to find out what’s wrong.

5. Battery performance has dropped

An electric forklift that no longer runs as long as it used to may have a battery, charging or electrical issue.

Look out for:

• Reduced operating time
• Longer charging periods
• Unusual power loss
• Repeated charging problems
• Battery or electrical warning messages

A drop in performance is a more useful early clue than waiting until the forklift won’t start or run at all.

6. The forklift struggles to start

Starting problems can look different depending on the forklift.

An electric machine may have a battery, charging, wiring or controller issue. LPG and diesel forklifts can have fuel, ignition, battery or engine-related faults as well.

Note what happens when it occurs. Does it crank slowly? Start intermittently? Does a warning light appear? These details help with diagnosis.

7. A warning light or fault code appears

Don’t ignore a warning light just because the forklift keeps working.

Electronic systems monitor different parts of a modern forklift, and a fault code points a technician toward the affected system. It doesn’t always mean the named component needs replacing.

Write down the code and what the forklift was doing when it appeared. That record can help when the machine is inspected.

8. Forks, chains or the mast show damage

The load-handling parts of a forklift deserve close attention.

Look for visible wear, cracks, deformation or damage around the fork arms, mast, chains and attachments. Pre-start guidance for forklifts specifically includes fork arms, attachments, chains and lifting systems in the inspection process.

A damaged component shouldn’t be overlooked just because the forklift can still lift a load. It needs to be assessed before returning to normal work.

9. There is a new noise or vibration

Operators often notice a change in sound or feel before a fault shows up in a formal inspection.

A new grinding, knocking, rattling or whining sound may point to mechanical wear or a loose or damaged part. New vibration can also be a sign that something needs attention.

Don’t assume the machine “sounds normal enough” after the first few minutes. If it’s new, report it.

10. Fluid levels keep dropping

Topping up a fluid without checking why it’s falling leaves the real problem untouched.

A drop in hydraulic, brake or other fluid levels may point to a leak or another fault. Checking relevant fluid levels is a standard part of forklift pre-start procedures.

Keep track of repeat top-ups. If the same fluid keeps needing more, the cause should be investigated.

Forklift Hydraulic Problems: What Should You Watch For?

Hydraulic faults can affect lifting, lowering and tilting. The clearest clues are usually changes in how the machine moves.

Watch for the following:

• Slow lifting
• Jerky movement
• Forks drifting or failing to hold position
• Visible oil leaks
• Unusual pump noise
• Reduced lifting performance

A hydraulic fault doesn’t always mean the pump is at fault. Hoses, seals, cylinders, valves and fluid condition can all affect hydraulic performance.

Checking hydraulic lines for oil leaks is a standard part of the pre-start process.

If hydraulic performance has changed, avoid guessing which part has failed. A proper inspection will confirm what needs attention.

Forklift Electrical Problems: Which Signs Matter?

Electrical faults can be harder to spot than a damaged tyre or a visible oil leak.

Keep an eye out for:

• Warning lights or fault codes
• Intermittent electrical operation
• Charging problems
• Unusual battery discharge
• Starting difficulties
• Damaged wiring or connections
• Electrical accessories or warning devices not working

On an electric forklift, battery and charging performance matter most. On LPG or diesel machines, electrical faults can affect starting, controls and other systems.

Standard pre-start checks include lights, controls, warning devices and other operating components.

Electrical troubleshooting needs a careful approach. Replacing parts at random can hide the real fault and add unnecessary cost. Our team handles both forklift and skid steer repairs and broader mechanical and auto-electrical repairs, so electrical faults are traced properly rather than guessed at.

How Often Should Forklift Maintenance Be Done?

There’s no single maintenance interval that suits every forklift.

The manufacturer’s maintenance schedule should be the starting point, alongside the machine’s workload and operating conditions. A forklift working long shifts in a demanding environment wears differently from one used for lighter duties.

WorkSafe WA states that forklifts should be inspected, serviced and maintained periodically in line with the manufacturer’s instructions. It also calls for an inspection and maintenance program that sets standards, frequencies, procedures and a way to report abnormal operation.

Operating hours matter too. Where a forklift has an hour meter, the reading should be recorded as part of maintenance and repair records.

Regular forklift servicing, paired with daily pre-start checks, is what catches most of these issues while they’re still small and inexpensive to fix.

A Practical Forklift Maintenance Checklist

A forklift maintenance checklist should be simple to use and broad enough to catch the obvious problems.

Before use, check the following:

• Steering and brakes
• Forks, mast and chains
• Hydraulic hoses and visible leaks
• Tyres and wheels
• Controls
• Lights, horn and warning devices
• Seat belt
• Fluid levels
• Gas cylinder and securing system, where applicable

These areas match the standard forklift checklist and pre-start guidance.

While operating:

Don’t ignore changes once the forklift is moving. Listen for new noises, watch for unusual vibration, and pay attention to braking, steering, lifting and warning indicators.

If something feels different from normal, report it rather than assuming it will pass.

When Should a Forklift Be Taken Out of Service?

A forklift shouldn’t stay in operation just because it can still move.

If a fault affects safe operation, the machine should be isolated and assessed before it’s used again. WorkSafe WA advises that any damage or problems found during checks be reported immediately, with the forklift isolated so it can’t be used.

Examples include:

• Brake faults
• Steering problems
• Significant hydraulic leaks
• Damaged forks or mast components
• Serious electrical faults
• Failed warning devices
• Problems that affect load control

Maintenance work itself needs care too. Serious injuries have occurred from unexpected movement during forklift maintenance, which is why securing plant and following the manufacturer’s instructions matters.

Repairs and maintenance should be carried out by people with the right skills and competence. For LPG-powered forklifts, gas piping repairs or replacement must be handled by licensed gas fitters.

Why Keep Forklift Repair Records?

Repair records tell you more than when the last service happened.

They reveal recurring faults, show how often a component needs attention, and give maintenance staff a record of work already done.

WorkSafe WA recommends keeping records that identify the forklift, the inspection or repair date, operating hours where an hour meter is fitted, details of the work, and who carried it out.

For businesses running several forklifts, these records also help flag machines developing repeat problems.

Keep Your Forklift Working Safely with SavQuip

A forklift showing unusual behaviour is worth checking before a small fault turns into a breakdown. SavQuip provides forklift and skid steer repairs for Perth and WA businesses, along with mechanical and auto-electrical repairs.

For equipment that can’t easily be brought to a workshop, SavQuip also offers mobile mechanic services at depots, workplaces and roadside locations, covering forklifts and other heavy machinery repair needs on site.

The sooner a change in braking, steering, lifting, electrical performance or general operation is reported, the sooner it can be assessed, and the right next step decided. 

Contact SavQuip to talk through what you’re seeing.

FAQs

Can a forklift be operated during a scheduled maintenance period?

Only if it stays safe and fit for use, and the manufacturer’s requirements and workplace procedures allow it. A scheduled service date isn’t permission to ignore an existing fault.

What should an operator do after noticing a new forklift fault?

Stop and report the problem through the workplace’s procedures. If the fault could make the forklift unsafe, isolate the machine and report the problem straight away.

Are forklift attachments included in pre-start checks?

Yes. Operators should check the forklift and any attachment before operation, including the load-engaging means and attachments, for damage or wear.

Does every forklift operator need a high-risk work licence?

For workplace operation, forklift operation is classed as high-risk work in Western Australia, and the relevant licence requirements apply. WorkSafe WA states forklift operators need the appropriate licence and must be over 18, subject to applicable exceptions.