Titan's manuals for the Hydra X, Hydra M and Hydra Pro IV say to use Coolflo and no other hydraulic fluid. It comes as 430-361 by the gallon and 430-362 by the quart. The Hydra X changes fluid and external filter every twelve months. The Hydra M and Pro IV manuals set six months. Check the level daily with the sprayer on level ground.
Titan's rule: Coolflo only
Titan's Hydra X manual calls the use of Coolflo mandatory and says not to use any other hydraulic fluid. The Hydra M and Hydra Pro IV manuals say the same thing for those sprayers. There is no list of approved alternatives to choose from, and we are not going to offer one.
Titan describes Coolflo as formulated for cooler pump operation, with anti-wear properties and protection against rust and oxidation. Those are the maker's words about its own fluid, and Titan does not publish a temperature or wear figure with them, so we do not give one. The practical point is simpler: the manual's instruction is to use what Titan specifies, in every Hydra.
Both are listed on the Hydra accessories page.
Checking the level
The check is daily on every Hydra, and the conditions matter more than the dipstick does. On a Hydra X, the manual wants the sprayer on flat, level ground and not running, with the level between the two dipstick notches. On the Hydra M and Pro IV, the manuals use the word Full on the dipstick. The Hydra X manual says to add fluid only in a clean, dust-free area, so do not top up from an open can on a dusty roof deck.
Low oil is the first cause the Hydra X manual lists for a motor that stalls, gives low or intermittent pressure, or runs with oil above 200 F (93 C). That is why the level check comes before everything else on a diagnosis.
Changing the fluid: Hydra X versus Hydra M and Pro IV
The two families have different intervals in their manuals, so the first step is knowing which one you own.
Hydraulic fluid care by series, from Titan's manuals
| Hydra X (4540, 7230) | Hydra M and Hydra Pro IV | |
|---|---|---|
| Fluid | Coolflo only | Coolflo only |
| Daily check | Between the two dipstick notches, level ground, not running | Full on the dipstick |
| Change interval | Every twelve months, with the external hydraulic filter | Every six months, with the external filter |
| Quantity | 6 gal container, plus up to 1 extra quart when the filter is changed | 5 gal of Coolflo |
| After the change | Run at low pressure for at least 5 minutes | Hydra M manual: low pressure for at least 10 minutes |
The Hydra M and Pro IV rows come from their own manuals. Pro IV owners should confirm each figure in the Pro IV manual before they act.
The manuals carry the actual steps, and so does the manuals page on this site. Relieve pressure first, in the way your model's manual describes. For the Hydra M and Pro IV, the manuals also describe purging air from the hydraulic motor by cycling at low pressure for 5 to 10 minutes. The hydraulic pump on those two is not field-serviceable, and the manuals say to return it to Titan.
Filter, breather and dipstick parts on the site
This is where the Hydra X and the older Hydras differ most, because each series uses different parts around the oil.
Hydra X
The Hydraulic System page lists the hydraulic tank (2401653A), the filter breather assembly (2401654A) and a filter gasket (2407453). The Hydraulic Diagram adds the hydraulic cooler, 2401591A. Titan's manual talks about an external hydraulic filter, and we cannot tell you from the diagram which listing is that part. The diagram also does not list a separate dipstick. Call (713) 931-0006 with your serial number before you order a filter for a Hydra X.
Hydra M and Hydra Pro IV
The Pro IV Hydraulic System page lists a hydraulic filter assembly, 432-861, and the Hydra M and Hydra Pro Super Engine Drive and Hydraulic System page lists a 10 MC filter element, 432-864, and a dipstick assembly, 335-010A. The dipstick assembly also appears on the Pro IV hydraulic system page.
Warning signs
The Hydra X manual lists oil above 200 F (93 C) together with stalling and low or intermittent pressure. The causes it gives are low oil level, a pressure control set too low, belt or pulley failure, a faulty ground wire, and piston or seal failure. You do not need a thermometer to act on this. If the hydraulic system feels unusually hot or the sprayer stalls, shut down and relieve pressure, check the oil level on level ground, and work down that list.
Park level, engine off
Level ground and not running are the manual's conditions for the check.
Read the dipstick
Between the two notches on a Hydra X, Full on a Hydra M or Pro IV.
Top up with Coolflo only
In a clean, dust-free area. Never another fluid.
Note the date
Twelve months for a Hydra X, six months for a Hydra M or Pro IV. Order the fluid and filter before the date, not after.
Coolflo and the hydraulic parts listed for the Hydra X and Pro IV:
The Short Version
Use Coolflo and nothing else, check it daily on level ground with the sprayer off, and change it on the schedule in your series' manual: twelve months for the Hydra X, six months for the Hydra M and Pro IV. For filters on a Hydra X, confirm the part by phone.
Need the right filter for your Hydra?
Call (713) 931-0006 with your model and serial number and our parts team will confirm the filter before you order.
(713) 931-0006Order by Parts Diagram