Section 4 - ADJUSTMENTS & REPAIR

WARNING

The electrolyte (acid) produces a highly explosive gas. Keep all sparks, flame and fire away from area when charging battery or when handling electrolyte or battery. Electrolyte (acid) is a highly corrosive liquid. Wear eye protection. Wash affected areas immediately after having eye or skin contact with electrolyte (acid). Battery acid is corrosive. Rinse empty acid containers with water and mutilate before discarding. If acid is spilled on battery, bench, or clothing, etc., Flush with clear water and neutralize with baking soda.

4.6.3. BATTERY SERVICE

1.Remove battery. See Section on Battery Removal.

2.Place battery in a well ventilated area on a level surface.

3.Using distilled water, refill cells as required to cover cell plates of which can also be visualized through the plastic battery case.

4.With cell caps removed, connect battery charger to battery terminals. Red to positive (+) terminal and black to negative (-) terminal.

5.Slow charge battery at 1 amp for 10 hours.

6.If battery will not accept charge or is partially charged after 10 hours of charging at 1 amp, replace with new battery.

4.6.4. BATTERY STORAGE

If mower is to be stored out of season on its rear bumper, it is recommended the battery be removed, charged and stored.

1.Remove battery. Refer to Section “BATTERY REMOVAL”.

2.Perform battery service.

3.Bring battery to full charge, if required.

4.Store battery in an area away from the RIDER on a wood surface. DO NOT STORE BATTERY ON A CONCRETE SURFACE.

4.6.5.NEW BATTERY PREPARATION 1. Remove battery from carton.

2. Place battery in a well ventilated area on a level non-concrete surface.

3. Remove battery cell caps. Fill cells as required with electrolyte (purchased separately) to proper level. Fill to 3/16” above cell plates. Filling battery with electrolyte will bring the battery to 80% charged state.

4. With cell caps removed, connect battery charger to battery terminals; RED to positive (+) and BLACK to negative (-) terminal.

IMPORTANT: 3/16” above cell plates is the recommended level. DO NOT place anything in battery other than specified electrolyte.

WARNING

DO NOT attempt to charge battery while installed on the Riding Mower. DO NOT use “BOOST” chargers on the battery. DO NOT OVERFILL!

5.Slow charge the battery at 1 amp for 2 hours to bring the battery to full charge.

6.After charging, check level of electrolyte and add as needed to bring level to 3/16” above cell plates.

7.Reinstall cell caps.

8.Slide battery partially into battery housing.

9.Connect positive (+) cable (red) first, from wiring harness to the positive terminal (+) on battery using bolt and nut provided in hardware bag. Connect negative (-) cable (black) last, to negative terminal (-) on battery using bolt and nut. Apply a small amount of grease over terminals to prevent corrosion.

10.Insert battery completely into battery housing.

11.Reinstall battery cover. See Figure 4.16.

WARNING

Shield the positive terminal with terminal cover located on battery harness. This prevents metal from touching the positive terminal which could cause sparks.

4.6.6.BATTERY TESTING

There are two types of battery tests: Unloaded and Loaded. The unloaded test is the procedure that will be discussed. It’s the simplest and most commonly used. An unloaded test is made on a battery without discharging current. To perform unloaded testing, check charge condition using either a hydrometer or voltmeter.

1.Using a voltmeter, voltage readings appear instantly to show the state of charge. Remember to hook the positive lead to the battery’s positive terminal, and the negative lead to the negative terminal.

2.A hydrometer measures the specific gravity of each cell. The specific gravity tells the degree of charge; generally, a specific gravity of about 1.265 to 1.280 indicates full charge. A reading of 1.230 to 1.260 indicates the battery should be charged. The chart on the next page shows the charge level as measured by syringe float hydrometer, digital voltmeter and five ball hydrometer.

(Battery Testing Chart on Next Page)

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Snapper EM250821BE, EM281021BE Battery Service, Battery Storage, NEW Battery Preparation 1. Remove battery from carton
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EM250821BE, EM281021BE specifications

The Snapper EM250821BE and EM281021BE models are two versatile battery-powered mowers designed to meet the diverse needs of homeowners and landscape professionals alike. These electric mowers are characterized by their user-friendly design, robust performance, and advanced technology, making them ideal for efficient lawn care.

One of the standout features of the Snapper EM250821BE is its 21-inch cutting deck, which ensures a wide mowing path and allows users to cover more ground in less time. This model is equipped with a powerful 82V battery system that delivers consistent voltage and runtime for large, demanding yards. With a simple push of a button, users can engage the motor, eliminating the hassle of pull-starts commonly associated with gas mowers.

The EM281021BE, on the other hand, boasts a slightly larger 28-inch cutting deck, which is designed for even greater efficiency. With its dual-blade technology, this mower not only provides a clean, precise cut but also enhances grass mulching capabilities, returning nutrients back to the lawn. Both models feature adjustable cutting heights, allowing users to customize the mower settings to suit different grass types and desired lawn appearances.

Another key technology incorporated in both mowers is the Smart Drive self-propulsion system. This system responds to the user’s walking speed, enabling effortless maneuverability across various terrains. With variable speed settings, operators can maintain control over their mowing pace, whether navigating tight corners or cruising down wide-open fields.

Ergonomically designed handles improve user comfort, and the foldable design enhances convenience for storage and transportation. A quick-release handle makes it easy to adjust the mower's height, accommodating users of all sizes and ensuring comfortable operation.

Both Snapper EM250821BE and EM281021BE are equipped with high-efficiency brushless motors that reduce noise and vibrations, resulting in a quieter mowing experience. Furthermore, their maintenance-free design means that users won’t have to deal with oil changes or spark plug replacements, making them environmentally friendly alternatives to traditional gas mowers.

In conclusion, the Snapper EM250821BE and EM281021BE mowers combine modern technology, ease of use, and powerful performance to deliver exceptional results. Whether for residential or professional use, these models are designed to meet the growing demand for sustainable lawn care solutions while maintaining the high standards that Snapper is known for.
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