On an Elite E15, maintenance centres on the piston pump: keep the wet cup filled with piston lubricant, clean the filter block and inlet screen, and replace the fluid section seals and inlet valve ball when pressure will not hold. Always relieve pressure first, using the pressure-relief/prime knob as your E15 manual describes.
Which sprayer this is
The Elite E15 is an older electric piston-pump sprayer, covered by Titan manual 313-348. It is not a PermaStroke sprayer, so the advice for the newer Elite 2000 or 3000 does not carry over. The manual gives a maximum working pressure of 2750 psi, and that is the figure every hose and gun on the system must meet or beat. We quote no flow, motor power or tip figures for it, because we could not verify them.
Most of the work on a piston pump is in the pump itself. The sections below follow the order you would normally go: relieve pressure, lubricate, check the filter block, then the fluid section, then the controls.
Pressure relief and priming
The E15 manual's pressure relief step is to turn the pressure-relief/prime knob to prime. That is the knob to use before you open anything, and the manual is where the full sequence is written down, including what to do with the gun. Follow it exactly. The same knob position is how you prime the pump, again as the manual describes.
Wet cup and Piston Lube
A piston pump has packings that seal the piston rod, and the wet cup holds the lubricant that keeps those packings moving freely. The E20 manual says to fill its wet cup one third full with Piston Seal Lubricant. We do not have the E15 manual's own fill level, so read that page of your manual rather than copying the E20 figure. The lubricant on the E15 accessories diagram is 700-926 Piston Lube.
Watch the wet cup as you spray. Paint appearing in it, or leaking at it, tells you the packings are no longer sealing the rod. A pump that will not hold pressure points the same way. The packings sit in the fluid section, so that is the page to open next. The E15 diagram lists no part called a wet cup, so call (713) 931-0006 if you need to replace the cup itself.
Filter block
A partly blocked filter causes pressure loss, pulsing and spitting, so clean the filter after every job and use a mesh suited to the coating. The Elite E15 Filter Block page lists ten parts:
- 761-451 filter housing, with the 730-083 filter spring.
- 750-039 pressure release and 730-222 outlet cap.
- O-rings 761-722, 761-456, 221-008 and 700-499, plus the 700-881 gasket and the 490-006 fitting.
The page does not list a filter element on its own, so if yours needs one, confirm the part with our parts team before ordering. When the housing is opened, check the O-rings and the gasket for cuts or flat spots. A damaged seal here will leak under pressure.
Fluid section
The inlet valve ball and its seat open and close with each stroke, and when they wear you get pulsing, loss of pressure or a pump that will not prime. Start with the cheap parts: clean the 710-046 inlet screen, then inspect the 762-145 inlet valve ball and the 762-058 seat O-ring. The seals are 762-111 and 762-103.
When several seals are worn at once, the 762-175 fluid section repacking kit is the kit the page lists for this job. We do not list what the kit contains, so confirm that by phone first. A 762-273 piston guide tool is also listed. The piston rod must be smooth, because a scored rod destroys new packings, so inspect it when the pump is open.
Gear box and motor
The Elite E15 Gear Box page lists the 700-771 pressure control knob, 700-646 toggle switch, 710-050 20 AMP fuse, strain relief, thrust washer, plates, screw and lock washer. A sprayer that is completely dead on a good outlet is worth a fuse check. We give no hour interval for motor or gear box service, because we could not verify one from Titan. If your manual lists one, use that.
After every job
- Flush the sprayer, hose and gun with the cleaning fluid your coating calls for. Do not let latex dry in the pump.
- Clean the inlet screen and filter, and strain the coating before the next use.
- Check the wet cup level and top it up with lubricant to the manual's level.
- Store the sprayer as the manual describes, and protect the pump against freezing.
Maintenance parts for the Elite E15:
The Short Version
Relieve pressure, keep the wet cup lubricated, clean the filter and inlet screen, and replace the inlet valve ball or seals when the pump will not hold pressure. The manual is on our manuals page, and the accessories page has the Piston Lube.
Need the right E15 part for the job?
Call (713) 931-0006 with your model and serial number and our parts team will confirm the part before you order.
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