When to Call for Mobile Rig Repair
Fast signs your rig needs a technician before a job-site breakdown costs you the day.
A rig that's down on a job site costs you the day — and the customer relationship. Catching problems early is always cheaper than a breakdown mid-spray.
Watch for these signs:
• Pressure drop that won't hold — usually a pump, packings, or leak issue.
• Ratio drift — the A and B sides go off-ratio and the foam won't cure right (sticky, spongy, or brittle).
• Hose temperature faults — cold hose means cold foam, which won't react.
• Gun spitting, surging, or pattern collapse — often a clogged mix or worn chambers.
• Material blockages or crystallized A-side from moisture ingress.
If you're adjusting constantly and the foam still isn't laying down right, stop spraying. Bad foam has to come out, and that's worse than waiting for a tech.
A mobile repair tech rolls to the site, diagnoses on the rig, carries common spares (packings, O-rings, filters, mix chambers), and gets you back spraying — usually faster than towing the rig to a shop. Keep the tech's number before you need it.
Key takeaways
- Pressure drops, ratio drift, and gun spitting are the top rig-failure signs.
- Bad foam has to come out — stopping early is cheaper than spraying off-ratio.
- A mobile tech carries common spares and gets you back spraying faster than a tow.
Step by step
- 1Watch for pressure drop, ratio drift, hose temp faults, and gun spitting.
- 2If the foam isn't curing right, stop spraying and don't keep adjusting blindly.
- 3Call a mobile repair tech with the symptoms before the day is lost.
- 4Keep common spares (packings, O-rings, filters, mix chambers) on the rig.
Quick checklist
- Pressure holds within spec.
- A and B ratio is balanced and foam cures correctly.
- Hose and material temperatures on target.
- Gun pattern clean with no spitting or surging.
Common mistakes
- Keep spraying off-ratio foam — it has to be removed and redone.
- Ignoring a slow pressure drop until it becomes a full breakdown.
- Not keeping the repair tech's number before you need it.
Ready to put it into practice?
Get a firm quote for your project or call the office to talk it through.
Mark this lesson complete to track your progress.