Fleet workshops pull elements on a schedule. Cleaning them on the bay keeps a serviceable filter in the truck instead of on a shelf waiting to be written off.
A tractor unit’s primary element loads at a predictable rate: distance, road conditions and season. What is not predictable is what happens when it loads — most workshops replace it early because cleaning it properly is slower than fitting a new one.
That decision looks small on one truck. Multiply it by a fleet and it becomes a monthly line item that nobody planned for.
The positioning plate covers 100–300 mm bores, which takes in the cylindrical primary and secondary elements used on most tractor units, rigids and bus fleets. Panel-type cabin filters are a different job and are outside the range of this machine.
| Primary outer element (tractor unit) | Fits — 100–300 mm bore range |
|---|---|
| Secondary safety element | Fits — at reduced pressure |
| Cabin / HVAC panel filter | No — panel type, not cylindrical |
| Workshop compressor intake | Depends — check bore before ordering |
The same four steps every time, which is the point — the result should not depend on who is on shift.
Remove the primary element and knock off the loose dust cake outside the bay.
Centre it on the base plate and set the arms to the bore.
Start low, raise until dust stops leaving the pleats.
Light behind the element. No tears, no thin spots — refit or replace.
That is set by the media and the dust, not by the machine. Inspect after every clean: any tear, collapsed pleat or soft spot ends the element’s life regardless of how many cycles it has had.
Follow the element maker’s service instructions. Many heavy-duty element manufacturers publish cleaning guidance with a pressure limit — the regulator and gauge on this machine are there so you can stay inside it.
The unit needs a compressed air line. Where a service truck carries air, yes — that is often faster than bringing the truck in for an element change.
Tell us how many trucks you service and which element sizes dominate your schedule. We will quote units for the number of bays you actually run, plus spares.
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