On the Elite G40 and G55 a clutch engages the pump, according to Titan's manual 313-485. The gear box diagram lists the 763-522 clutch rotor, the pressure control knob, a toggle switch and small hardware, and the G40 engine page adds the 764-018 clutch inspection plug. Titan says to lower engine speed and pressure for light coatings or small tips to reduce clutch cycling.
How the G40 and G55 are driven
Titan's owner's manual 313-485 covers both the Elite G40 and the Elite G55. It describes a clutch that engages the pump, and a maximum working pressure of 3000 psi (210 bar). That clutch is the main difference from the Elite 3500 and 4500, which Titan describes as having no clutch at all, so nothing on this page applies to those models.
On our site each model has five diagram sections: Engine, Gear Box, Frame, Filter Block and Fluid Section. This guide covers the Engine and Gear Box pages. The two pages for the G40 are Gear Box and Engine, and for the G55 they are Gear Box and Engine. The wetted end is a separate topic, and the Fluid Section and Filter Block pages hold those parts.
Gear box parts on the diagram
The G40 Gear Box page lists nine parts and the G55 page lists ten. Most of them are the same on both:
Gear box diagram parts
| Part | Number | Callout | Pages |
|---|---|---|---|
| Clutch rotor | 763-522 | 21 | G40 and G55 |
| Pressure control knob | 700-771 | 26 | G40 and G55 |
| Toggle switch | 700-646 | 50 | G40 and G55 |
| Plate | 700-775 | 49 | G40 and G55 |
| Thrust washer | 700-680 | 31 | G40 and G55 |
| O-ring | 763-510 | 23 | G40 and G55 |
| Screws | 763-517 (callout 20), 763-525 (callout 29) | 20, 29 | G40 and G55 |
| Washer (Cart Only) | 763-552 | 52 | G40 only |
| Lock washer and screw | 9821503 (callout 52), 0509219 (callout 27) | 52, 27 | G55 only |
The G40 page lists 763-552 at callout 52; the G55 page lists lock washer 9821503 at the same callout. Order from your own model's page.
The diagrams list the parts but do not describe how each part behaves, so for anything beyond identification use the manual. The rotor is the part that carries the clutch's name on the page, and it has the same number on both models.
Engine-side parts
The engine pages are short. The G40 Engine page has four parts: the 764-018 clutch inspection plug, a 730-165 ground wire assembly, a 763-550 bushing and a 763-566 screw. The G55 Engine page has the same ground wire, bushing and screw, but it does not list the inspection plug.
We do not state the engine make or output for either model, because we could not confirm them. Check the manual or the engine's own data plate for the engine details.
What the manual says about clutch wear
Titan's manual says the clutch engages and disengages while the sprayer is pumping. Its guidance, from the extract we have, is built on that fact:
- For light coatings or small tips, lower the engine speed and the pressure setting to reduce clutch cycling.
- Reduce engine speed when you start the sprayer and when you clean it.
- Never run the sprayer for more than 10 seconds without fluid. Titan says it wears the packings.
The same advice is easy to apply on site. Set the pressure with the pressure control knob (700-771) only as high as the coating needs, and do not leave the sprayer pumping with an empty bucket or a dry hose. We do not give a clutch service interval or a replacement time, because the Titan manual extract we have gives none.
Signs to check and where to look
We can identify parts from a diagram, but we cannot diagnose a clutch from one, so use the manual's troubleshooting section for the clutch itself. Two cases are worth separating, though.
- Pressure will not hold, or paint leaks at the pump. On a piston pump, worn packings are a standard cause. That points to the fluid section before the gear box. A scored piston rod also destroys new packings.
- The pump is not being driven at all. Start with the manual. The clutch rotor (763-522) and the clutch inspection plug (764-018) are the parts our G40 diagrams name for the clutch, and our parts team can confirm numbers if you tell them what you see.
Getting the right manual and parts
Our manuals page lists an Elite G40 manual. Titan's 313-485 covers the G40 and G55 together. For parts, open your model's page, find the numbered callout and add the part. If the callout does not match what you see, call (713) 931-0006 with the model and serial number. Parts and manuals for both models remain available.
Gear box and engine-side parts on the G40 and G55 diagrams:
The Short Version
The G40 and G55 clutch is in Titan's manual and on the gear box diagram as the 763-522 rotor. To reduce clutch cycling, lower engine speed and pressure for light coatings or small tips, and never run the sprayer more than 10 seconds without fluid. For parts, use your own model's Gear Box and Engine pages.
Need the right clutch or gear box part?
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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