SECTION 4: MAINTENANCE

ENGINE MAINTENANCE

Engine maintenance procedures and schedules can be found in the engine manual. Follow those instruc- tions for performing engine maintenance.

Using the Engine Oil Drain Valve

Locate the oil drain valve on the left side of the engine.

Pop open the protective cap on the end of the oil drain valve to expose the oil drain port. See Figure 21.

Push the oil drain hose (packed with this man- ual) onto the oil drain port. Route the opposite end of the hose into an appropriate oil collection container with a capacity great enough to collect the used oil (62 oz.- ZT42; 80 oz.- ZT50).

Protective

Cap

If acid spills on clothing, first dilute it with clean water, then neutralize with a solution of ammonia/ water or baking soda/water.

NEVER connect (or disconnect) battery charger clips to the battery while the charger is turned on, as it can cause sparks.

Keep all sources of ignition (cigarettes, matches, lighters) away from the battery. The hydrogen gas generated during charging can be combustible.

As a further precaution, only charge the battery in a well ventilated area.

Always shield eyes and protect skin and clothing when working near batteries.

WARNING: Batteries contain sulfuric acid and may emit explosive gases. Use extreme caution when handling batter- ies. Keep batteries out of the reach of children.

Oil Drain Hose

Turn and

Pull Out

Oil Drain Valve

BATTERY REMOVAL

WARNING: Battery posts, terminals and related accessories contain lead and lead compounds. Wash hands after handling.

Figure 21

Push the oil drain valve in slightly, then rotate counterclockwise and pull outward to begin draining oil. See Figure 21.

HYDROSTATIC TRANSMISSION MAINTENANCE

The zero turn tractor is equipped with dual integrated hydrostatic pumps, motors, and transaxles that are sealed and do not require regular maintenance. All service work on the hydrostatic transmissions should be performed by your White Outdoor dealer.

GENERAL BATTERY INFORMATION

WARNING:

Battery posts, terminals and related accessories contain lead and lead compounds. Wash hands after handling.

Should battery acid accidentally splatter into the eyes or onto the skin, rinse the affected area immediately with clean cold water. If there is any further discomfort, seek prompt medical attention.

The battery is located on the right/rear of the tractor beneath the seat box frame.

To remove the battery:

Push downward on the top rear of the battery holddown rod and pull the bottom rearward to release it from the tab in the frame. Rotate the holddown rod upward and maneuver out of the hole in the seat box.

Remove the hex cap screw and sems nut secur- ing the black negative battery lead to the negative battery post (marked NEG). Move the cable away from the negative battery post.

Remove the hex cap screw and sems nut secur- ing the red positive battery lead to the positive battery post (marked POS).

Carefully lift the battery out of the tractor.

Install the battery by repeating the above steps in the reverse order.

WARNING: Always connect the positive lead to the battery before connecting the negative lead. This will prevent sparking or possible injury from an electrical short caused by contacting the tractor body with tools being used to connect the cables.

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MTD ZT 42 manual Engine Maintenance, Battery Removal, Hydrostatic Transmission Maintenance, General Battery Information

ZT 42, ZT 50 specifications

The MTD ZT 42 and ZT 50 are part of MTD's impressive line of zero-turn lawn mowers, crafted to provide efficient and effective mowing solutions for both residential and commercial applications. With their robust design and advanced features, they cater to users seeking performance, comfort, and reliability.

The MTD ZT 42 features a 42-inch cutting deck, while the ZT 50 boasts a larger 50-inch cutting deck. This difference in size allows users to choose the model that best fits their mowing needs, whether they are managing a small residential yard or larger commercial properties. Both models are designed with efficiency in mind, enabling users to navigate tight spaces and maneuver around obstacles with ease, thanks to their zero-turn radius capabilities.

One of the standout features of both mowers is their powerful engine. The ZT 42 is equipped with a reliable 18 HP engine, while the ZT 50 features a more robust 24 HP engine. These engines provide ample power, ensuring that the mowers can tackle thick grass and uneven terrain without compromising performance.

In terms of comfort, both models come with ergonomic seating and user-friendly controls. The plush, high-back seats offer superior support during extended mowing sessions, reducing fatigue. The intuitive controls are designed for ease of use, allowing operators of all experience levels to handle the machines effortlessly.

The cutting technology in the MTD ZT series is another highlight. Both models include a fabricated steel deck that is designed for durability and longevity. The cutting height can be easily adjusted, offering users the flexibility to achieve the desired grass length. The precision cutting blades ensure a clean cut, promoting a healthy lawn.

Furthermore, both mowers are equipped with enhanced safety features. The automatic braking system engages whenever the operator leaves the seat, preventing unintended movement. This feature, combined with responsive steering and fast speeds, ensures that the mowers are not only efficient but also safe to use.

Overall, the MTD ZT 42 and ZT 50 embody a combination of power, precision, and comfort. With their advanced technologies and robust features, they serve as excellent choices for anyone looking to maintain a pristine lawn with minimal effort. Their reliability and performance make them appealing options in the zero-turn mower market, attracting homeowners and landscape professionals alike.