The MultiFinish 440 (0524029) has five parts diagrams on the site: main assembly, fluid section, compressor, drive and cart. Wear items are mostly in the fluid section (packings, valve balls and seats, filter) and the gun tip. Electrical and air faults point to the compressor page, and brushes and motor to the drive page.
The MultiFinish 440 is built on Titan's 440 airless platform with an onboard compressor added, so its parts are spread over more diagram pages than a plain airless pump. Knowing which page holds what saves time at the order screen. Order by diagram: open the page, find the callout, add the part, or search the part number in the header.
The five diagram pages
MultiFinish 440 diagrams and what is on each
| Diagram page | Parts listed | What lives there |
|---|---|---|
| Fluid Section Assembly | 38 | Packings, piston and rod, inlet and outlet valves, manifold filter, pressure sensor, pump block |
| Compressor Assembly | 27 | Compressor, filter element, solenoid, gauge, relief valves, power switch, circuit breaker, power cord |
| Main Assembly | 45 | Control panel, pressure board, potentiometer, high pressure fluid gauge, siphon tube, fasteners |
| Drive Assembly | 14 | Motor, motor brush kit, capacitor, crankshaft and gear assembly, slider, main housing |
| Cart Assembly | 9 | Handle, wheel, wheel spacer, hub cap, plugs |
Part counts are from the site's diagram pages. There is also a Multifinish 440 Spray System page, which has no individually listed parts.
Fluid section: the first place wear shows
The fluid section is the pump end, and it has the parts that wear with use. In a piston pump the rod runs through packings, and the inlet and outlet valves open and close on balls and seats. Worn packings show as leaking at the wet cup, paint in the wet cup, or pressure that will not hold. Worn valves cause pulsing, loss of pressure or failure to prime.
Fluid section wear items
Titan lists Quad+ Packings, an AutoOiler for the packings and a Sureflo Pusher Valve for a stuck valve among this model's features. The manuals on the manuals page give the service procedure; the research we have does not give a service interval or the lubricant, so check the Multifinish 440 manual for those. Titan also describes the cylinder as PermaLife, with no replacement.
Compressor, switch and air side
This is the part that separates the MultiFinish from a plain airless pump. For air-assisted spraying the onboard compressor supplies the atomizing air. Titan's manual lists these causes when the compressor does not start: the ON/OFF switch off, a faulty switch or compressor, a tripped breaker, or a blocked or faulty pressure relief solenoid valve. If it starts but delivers too little air, the manual says to check that the air regulator is not set too low.
- 9850936 Power Switch
- 0524568 Circuit Breaker
- 0524544 Solenoid 120V
- 0524543A Compressor and 0524378 Filter Element, Compressor
- 0524570 Gauge and 0524571 Adjustable Relief Valve
Drive and control parts
The motor is a 7/8 HP PMDC unit, which is why the drive page carries a 805-272 Motor Brush Kit alongside the 0558373A Motor Replacement Assembly and the 0522018 Capacitor Assembly. The pressure is set electronically, and the main assembly carries the 805-211A Control Panel Assembly, the 805-402A Pressure Board Control Assembly, the 0508579 Potentiometer and the 0508239 High Pressure Fluid Gauge. The siphon tube, 805-408, is also on the main page.
We do not have symptom-by-symptom guidance for the control board. If the pressure will not set or the display behaves oddly, call (713) 931-0006 before ordering a board.
Spray end and cart
The MultiFinish ships with a GM 3600 air-assisted airless gun, a 415 tip, and a hose and whip set. The gun has its own diagrams, reversible tip and flat tip. A worn tip has a wider orifice, so pressure falls and the pattern turns coarse, which is why the tip is the first thing to change when atomization drops. The reversible tip on the diagram is 695-415. The cart page covers the 0278373 Wheel and its hub cap and spacer.
What to replace first
Tip and gun filter
Quickest to do. A worn tip is a common reason for coarse spray, and the manual lists a worn or oversized tip first among atomization causes.
Manifold filter and strainer
Clean the 730-067; replace if damaged.
Packings and valves
If paint appears at the wet cup or pressure will not hold, look at the packing kits and valve balls on the fluid section page.
Switch, breaker, solenoid
Compressor will not start: work through the manual's list in order.
Motor brushes
Only after the above, if the pump drive itself has stopped.
Parts across the five assemblies. Live prices show in the grid.
Packings, valves, piston rod, filter.
Switch, breaker, solenoid, compressor.
Control panel, pressure board, gauge.
Bottom line
Start at the fluid section for wear, the compressor page for air faults, and the drive page for motor parts. Check the tip and filters before the pump. Call (713) 931-0006 with your serial number if you cannot find the callout.
Not Sure Which Part You Need?
Send us your model and serial number and we will confirm the exact part before you order. Or find it yourself in the parts diagrams.
(713) 931-0006Order by Parts Diagram