CHARGING THE BATTERY

Test and, if necessary, recharge the battery after the tractor has been stored for a period of time.

A voltmeter or load tester should read 12.6 volts (DC) or higher across the battery terminals.

Charge the battery with a 12-volt battery charger at a MAXIMUM rate of 10 amps.

Voltmeter

State of

Charging

Reading

Charge

Time

12.7

100%

Full Charge

12.4

75%

90 Min.

12.2

50%

180 Min.

12.0

25%

280 Min.

 

 

 

BATTERY MAINTENANCE

The battery is filled with battery acid and then sealed at the factory. However, even a “maintenance free” battery requires some maintenance to ensure its proper life cycle.

Spray the terminals and exposed wire with a battery terminal sealer, or coat the terminals with a thin coat of grease or petroleum jelly, to protect against corrosion.

Always keep the battery cables and terminals clean and free of corrosion.

Avoid tipping. Even a sealed battery will leak electrolyte when tipped.

BATTERY STORAGE

When storing the tractor for extended periods, disconnect the negative battery cable. It is not necessary to remove the battery.

All batteries discharge during storage. Keep the exterior of the battery clean, especially the top. A dirty battery will discharge more rapidly.

The battery must be stored with a full charge. A discharged battery can freeze sooner than a charged battery. A fully charged battery will store longer in cold temperatures than hot.

Recharge the battery before returning to service. Although the tractor may start, the engine charging system may not fully recharge the battery.

SERVICING ELECTRICAL SYSTEM

A fuse is installed to protect the tractor’s electrical system from damage caused by excessive amper- age. Always use the same capacity fuse for replacement. If the electrical system does not func- tion, check for a blown fuse. See Figure 22

If you have a recurring problem with blown fuses, have the tractor’s electrical system checked by your White Outdoor dealer.

GOOD BAD

Figure 22

Relays and Switches

There are several safety switches in the electrical system. If a function of the safety interlock system described earlier is not functioning properly, have the electrical system checked by your White Outdoor dealer.

LUBRICATION

Using a pressure lubricating gun, lubricate the front castor axles and pivot axle with a No. 2 multi-purpose grease after every 10 hours of service.

Refer to the "MOWER DECK" section later in this manual for deck lubrication procedures.

Periodically lubricate all other pivot points with a quality lubricating oil.

TIRE MAINTENANCE

Check the tire air pressure after every 50 hours of operation or weekly. Keep the tires inflated to the recommended pressures. Improper inflation will shorten the service life of a tire. See the tire side wall for proper inflation pressures. Observe the following guidelines:

Do not inflate a tire above the maximum pressure shown on the sidewall of the tire.

Do not reinflate a tire that has been run flat or seriously under inflated. Have a qualified tire mechanic inspect and service the tire.

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MTD ZT 50, ZT 42 manual Charging the Battery, Battery Maintenance, Battery Storage, Servicing Electrical System, Lubrication

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.