Who This Checklist Is For
If you're a rehab center, hospital procurement specialist, or authorized Permobil dealer receiving a shipment of F5, M3, M300, or Corpus-series power wheelchairs, this is for you. Specifically, this checklist is designed for the first visual and functional inspection—the one you do before you sign the delivery note and before you hand the chair to a user.
I manage quality compliance for a medical equipment distributor. We handle roughly 200 units a year—Permobil, Invacare, Sunrise. Over four years, I've rejected about 12% of first deliveries for issues that were visible to someone with a checklist. Not a technician. Just someone looking in the right places.
This checklist has 7 steps. Follow them in order. Skip one, and you might be signing for a chair that needs a factory return.
Step 1: Verify the Model and Spec Against the Purchase Order
Start before you open anything. Match the box label or the chair's serial plate to your purchase order.
What to check:
- Model number: F5, M3, M300, or Corpus. They look different.
- Joystick type: Standard, mid-mount, or specialty (e.g., for head or chin control).
- Seat size: Check the frame width and depth. A mismatch here is a $600 return.
Common mistake: Assuming the box label matches the contents. In Q1 2024, we accepted a batch where three M300 boxes contained F3 frames. The vendor's picker made an error. Our receiving team caught it because they checked.
Checkpoint: Model number matches PO. Seat size matches user prescription (if provided). Joystick type matches order.
Step 2: Inspect the Battery Compartment and Lead
This step is about safety and future maintenance. The battery is a high-cost item—replacement Permobil M3 batteries run $400-800 depending on the supplier. You want to know the condition of the compartment now, not when the user needs a charge.
What to check:
- Are the battery terminals clean and free of corrosion? Look for white or blue deposits.
- Are the mounting brackets secure? A loose battery can shift during transport, damaging the wiring harness.
- Is the battery the correct type? Permobil uses specific battery packs. If you see a generic battery swapped in, reject it.
From experience: We received a batch of M3 wheelchairs where the vendor had used a lower-capacity battery to meet a price target. The batteries fit, but the run time was 40% shorter than spec. We caught it because the battery label didn't match the PO. The vendor replaced all 12 units at their cost—$4,800 in total.
Checkpoint: Battery terminals clean. Mounting brackets tight. Battery label matches PO.
Step 3: Joystick Functionality and Mounting
The joystick is the primary control interface. This isn't just about responsiveness—it's about whether the mount can withstand regular use.
What to check:
- Is the joystick rigidly mounted? Gently apply lateral pressure. If it shifts more than 2-3mm, the mount is loose.
- Does the joystick return to center when released? A slow or sticky return means a calibration issue.
- Test all inputs: forward, backward, left, right. Do it on a flat surface. Watch for hesitation or drifting.
I'm not a joystick calibration specialist, so I can't speak to the internal adjust parameters. What I can tell you from a quality perspective is: if it doesn't feel right at delivery, it won't get better with use.
Checkpoint: Joystick firmly mounted. Returns to center. Drives smoothly in all directions.
Step 4: Wheel and Tilt Mechanism Inspection
Permobil power wheelchairs, especially the M300 and F5, have complex tilt and recline systems. These are common failure points.
What to check:
- Tilt the seat to max angle (45 degrees for most models). Does it move smoothly? Any grinding noise?
- Check for visible hydraulic fluid leaks around the tilt cylinder. A small leak now means a replacement cylinder in 6 months.
- Inspect the drive wheels. Spin them manually. Do they rotate freely without wobble? Wobble indicates a bent axle or damaged bearing.
Checkpoint: Tilt operates smoothly, no leaks. Wheels spin true, no wobble.
Step 5: Damage Inspection—Structural and Cosmetic
This is straightforward but frequently skipped under time pressure. The frame is aluminum; it can crack if mishandled during shipping.
What to check:
- Run your hand along the frame rails—front, back, and under the seat. Feel for cracks, dents, or sharp edges.
- Check all plastic panels (shrouds, footrest covers, control panel bezels) for stress marks or cracks. Stress marks look like white lines near screw holes.
- Inspect the upholstery: seat cushion, backrest, armrest pads. Look for tears, loose seams, or discoloration.
Example: In 2023, we rejected a batch of 8 Corpus chairs because the footrest shrouds had hairline cracks around the mounting screws. The vendor claimed it was 'within industry standard.' Normal tolerance for plastic cracks is zero on a new unit. We sent them back.
Checkpoint: No frame cracks or dents. No cracked plastic. Upholstery intact.
Step 6: Documentation and Accessories
This step is about what comes with the chair, not the chair itself.
What to check:
- Is the user manual included? Permobil manuals are model-specific. The F5 manual is not a substitute for the M3 manual.
- Are all accessories present? Charger, battery cable, anti-tip wheels (if ordered), headrest, accessories bracket.
- Check the warranty card. It should be filled in by the vendor with the serial number and delivery date.
Checkpoint: Manual included for correct model. All accessories present. Warranty card completed.
Step 7: Final Functional Test (Short Ride)
This is the step that most distributors skip. They inspect the chair, do the paperwork, and push it to storage. Instead, take it for a 2-minute ride.
What to check:
- Drive forward 10 meters, reverse 10 meters. Does it track straight? Or does it pull to one side (indicating a motor or alignment issue)?
- Test the brakes. From a slow roll (2-3 km/h), release the joystick. The chair should stop smoothly and hold position on a gentle incline.
- Listen: any clicking, grinding, or electrical buzzing from the motors? Normal operation is quiet—mostly tire noise.
If a chair fails this test, don't accept it. The issue is almost always a motor or controller problem that will require a technician visit later. Better to reject it now.
Checkpoint: Drives straight, brakes hold, no unusual noises.
Two Common Mistakes to Avoid
Mistake #1: Accepting a 'B-Stock' Chair by Mistake
Permobil, like most manufacturers, sells 'B-stock' or 'factory refurbished' units at a discount. They're fine—if you ordered one. The problem is when a vendor sends a B-stock unit to fill a 'new' order. The serial number usually includes a 'B' or 'R' suffix. Check it. If it's B-stock and you ordered new, reject it.
Mistake #2: Ignoring the Soft Goods
Upholstery defects are visible. But a small tear on the underside of the seat cushion won't be seen until you've accepted and stored the chair. Lift the cushion. Inspect the underside and the zipper (if removable). That's where hidden damage lives.
If I remember correctly, about 30% of our return claims for 'damaged goods' in 2023 were for issues that could have been identified at delivery with a simple visual check. Don't be that distributor.
