Why is the gear pump on my Toro 04470 noisy (cavitation)?
If the gear pump on your Toro Lawn Mower is noisy (cavitation), it could be due to a low oil level in the reservoir, a restricted hydraulic pump suction line, or an air leak in the hydraulic pump suction line. Refill the oil level in the reservoir and check the hydraulic pump suction line for restrictions and leaks.
Why do I need to regularly adjust the steering wheel on my Toro Lawn Mower to drive straight?
If you need to make regular adjustments to the steering wheel of your Toro Lawn Mower because of difficulty driving in a straight line, the leaf springs in the steering valve may be worn or broken. The gear wheel set in the steering valve could be worn, or the steering cylinder might be seized or have worn piston seals. Replace worn or broken leaf springs in the steering valve. Inspect and repair the gear wheel set and steering cylinder.
Why do the cutting units on my Toro 04470 Lawn Mower raise but will not stay up?
If the cutting units on your Toro Lawn Mower raise but will not stay up, the hydraulic manifold solenoid valve (S4) may be leaking, or the lift cylinders could have internal leaks. Inspect and repair or replace the hydraulic manifold solenoid valve S4. Check the lift cylinders for internal leaks.
Why are the reels not turning on my Toro 04470?
If the reels on your Toro Lawn Mower will not turn, the solenoid valve S1R1 may be stuck open or damaged. There could be an electrical problem, the FC1 logic valve in the control manifold might be stuck open, the PRV valve in the control manifold could be stuck closed, the pilot piston in the control manifold may be stuck or damaged, or the front section of the gear pump might be worn or damaged. Inspect and test the solenoid valve S1R1 and replace or repair as needed. Check for electrical issues and inspect the control manifold and valves for proper operation.
How to fix hydraulic oil leaks from my Toro 04470 Lawn Mower?
If the hydraulic oil is leaking from the system of your Toro Lawn Mower, it could be due to loose or damaged fittings, hoses, or tubes. It is also possible that O-rings or seals are missing or damaged. Check and tighten all fittings, hoses, and tubes. Replace any missing or damaged O-rings or seals.
Why won't the steering wheel on my Toro 04470 return to the neutral position?
If the steering wheel on your Toro Lawn Mower will not return to the neutral position, the spool and sleeve may be sticking to the steering valve housing assembly. Inspect the spool and sleeve for sticking and clean or repair the assembly as needed.
Why does the steering wheel on my Toro 04470 Lawn Mower turn on its own?
If the steering wheel on your Toro Lawn Mower can turn on its own, the leaf springs in the steering valve may be broken or stuck, or the spool and sleeve may be sticking to the steering valve housing assembly. Replace or repair the leaf springs in the steering valve and check the spool and sleeve for sticking.
Why is there backlash when turning the steering wheel on my Toro 04470?
If you notice backlash when turning the steering wheel on your Toro Lawn Mower, the cardan shaft fork in the steering valve might be worn or broken. Also, the leaf springs in the steering valve could be worn or broken, or the splines on the steering column might be worn. Inspect and replace the cardan shaft fork in the steering valve. Replace worn or broken leaf springs and check the splines on the steering column.
Why is the steering wheel on my Toro 04470 hard to turn?
If the steering wheel on your Toro Lawn Mower is hard to turn, it could be due to insufficient oil flow to the steering valve or a missing or damaged emergency steering ball in the steering valve. Check the oil flow to the steering valve and repair any issues. Inspect the emergency steering ball for its condition.
Why is neutral difficult to find on my Toro 04470 Lawn Mower, or why does it only operate in one direction?
If you are having difficulty finding neutral or your Toro Lawn Mower only operates in one direction, the external traction control linkage might be misadjusted, disconnected, binding, or damaged. Another potential cause is a worn or damaged piston (traction) pump. Adjust or repair the external traction control linkage and inspect the piston (traction) pump, replacing it if necessary.
General| Model | 04470 |
|---|---|
| Power Source | Gasoline |
| Engine Type | 4-Cycle |
| Start Type | Recoil |
| Deck Material | Steel |
| Cutting Height | 1.25 - 3.75 inches |
| Fuel Tank Capacity | 0.25 gal (1 L) |
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