Section 3 - MAINTENANCE

WARNING

DO NOT attempt any adjustments, maintenance, service or repairs with the engine running. STOP engine. STOP blade. Engage parking brake. Remove key. Remove spark plug wire from spark plug and secure away from plug. Engine and components are HOT. Avoid serious burns, allow all parts to cool before working on machine. Fuel Filler Cap and vent must be closed securely to prevent fuel spillage.

3.2 SERVICE - AFTER FIRST 5 HOURS 3.2.4. CHECK BLADE DRIVE BELT

The blade drive consists of a single belt from the engine to the deck. Inspect for signs of deterioration and proper tension.

1.Lower deck to lowest setting.

2.Remove drive belt cover.

3.Slide cover back and rotate out on left side of mower deck. See Figure 3.3.

REMOVE DRIVE

BELT COVER

FIGURE 3.3

4.On 42” models, check belt for excessive wear or damage; there are no adjustments to tighten belt on these models. See Figure 3.4. If belt is too loose to operate mower satisfactorily then a new belt will have to be installed. Refer to Section “MOWER DRIVE BELT REPLACEMENT”.

WARNING

The following procedure requires the engine and blades to be operated. Exercise extreme caution. Clear area of loose parts & tools first. Only operate blades when seated in the operator’s seat.

TOP VIEW OF BELT ROUTING

LEFT

RIGHT

SPINDLE

SPINDLE

PULLEY

PULLEY

 

ENGINE DRIVE

PULLEY ASSEMBLY

FIGURE 3.4

3.2.5.BLADE BRAKE

1.Check blade brake for proper function. Blade should stop rotating in 3 seconds or less after moving the blade control lever to the “OFF” position or after releasing the blade pedals.

WARNING

Blades must stop rotating in 3 seconds or less after the blade has been turned off. DO NOT operate machine until blade brake has been adjusted and functioning properly.

2.If the blade continues to rotate longer than 3 seconds do not operate machine. Refer to Section “BLADE BRAKE ADJUSTMENT” or contact your SNAPPER dealer for assistance.

3.2.6.SERVICE BRAKE / PARK BRAKE

1.Check machine brake for proper function. Engage park brake. Push machine. Rear tires should skid. Drive machine forward and apply brake. Machine should come to a complete stop in less than 5 ft.

2.If brakes are not functioning properly brake adjustment must be completed before operating machine. Refer to Section “SERVICE BRAKE – PARK BRAKE ADJUSTMENT”.

3.2.7.INTERLOCK SYSTEM

Check interlock controls for proper function:

The engine MUST NOT start if:

1.Blade Control is “ON” and/or clutch/brake pedal is released.

The engine and blades MUST STOP if:

2.The operator leaves the operator position with Blade Control “ON” and/or clutch/brake pedal is released.

WARNING

DO NOT operate machine if interlock system is not functioning properly. Contact your SNAPPER dealer immediately for assistance.

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Snapper 421622BVE Service After First 5 Hours 3.2.4. Check Blade Drive Belt, TOP View of Belt Routing, Blade Brake

421622BVE specifications

The Snapper 421622BVE is a versatile and powerful lawn mower designed for both residential and commercial use, making it an excellent choice for groundskeepers and homeowners alike. This mower blends performance and durability with innovative features that set it apart in the competitive lawn care market.

One of the standout features of the Snapper 421622BVE is its robust engine. It is powered by a reliable 150cc Briggs & Stratton engine, which provides ample power for cutting through thick grass and tackling uneven terrain. The engine is designed for easy starting and requires minimal maintenance, allowing users to spend more time mowing and less time dealing with equipment issues.

The mower is equipped with a 21-inch cutting deck, which offers a perfect balance between maneuverability and cutting efficiency. This size is especially beneficial for homeowners with smaller to medium-sized yards. The cutting deck features a three-in-one design that allows users to switch between bagging, mulching, or side discharging grass clippings, depending on their preference and lawn care needs.

Another notable characteristic of the Snapper 421622BVE is its ergonomic design. The handle is adjustable, allowing users of varying heights to find a comfortable grip while mowing. This feature helps reduce operator fatigue, which is especially important during extended mowing sessions. Additionally, the mower’s lightweight construction makes it easy to maneuver around obstacles in the yard.

The Snapper 421622BVE also incorporates several cutting technologies that ensure a clean and even cut. The patented variable-speed rear-wheel drive system provides excellent traction and control, allowing users to tackle hills and slopes with ease. The dual-bearings in the wheels enhance durability, ensuring that the mower can withstand rugged use.

Safety features are paramount in the design of the Snapper 421622BVE. It includes a safety key that must be inserted to start the mower, preventing unauthorized use. The blade brake feature ensures that the blades stop quickly when the operator releases the handle, providing additional safety for the user.

In conclusion, the Snapper 421622BVE is a well-rounded lawn mower that combines power, efficiency, and safety features into an exceptional package. Its robust engine, versatile cutting options, ergonomic design, and innovative technologies make it a perfect choice for anyone looking to maintain a healthy and beautiful lawn.