Reassemble Sprayer and Lubricate Components
At 11:51 in
Trouble Shooting Airless Paint Sprayers
What happens here
The cleaned ball valve assembly is now ready to be reattached to the sprayer. Piston lube (also referred to as 'throat seal liquid' or TSL) is applied to the threads of the lower intake section before screwing it back onto the sprayer. This lubrication is vital as it prevents paint from drying and seizing the threads, making future disassembly easier and preventing corrosion. The intake tube, which features two O-rings, is also reattached. Lubricating these O-rings (with piston lube or silicone lube) is highly recommended to maintain their flexibility and sealing integrity, especially on older sprayers that might have hardened O-rings.
Goal: Properly reassemble the sprayer, lubricating key components for optimal function and longevity.
Tools and materials
- Airless Sprayer — The main equipment being reassembled
- Cleaning Rag — Wiping off excess lubricant or paint
- Piston Lube — Lubricating threads and O-rings to prevent seizing and ensure smooth operation
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