Wing Mowers, Wing Mower Lift | National Mower 99500500-8400 manual

WING MOWERS

1.Remove wing mowers from crate. Position on each side of tractor with the yoke pins (1, Figure 10) facing the tractor.

2.Remove the two wing mower belts (2, Figure 11) fastened to the rear cutting unit and install over lower countershaft pulleys (3, Figure 11) on each side of the tractor. Place belt loosely over the end of the wing mower pull yoke (4, Figure 10).

3.Move left and right cutting units into position so that the yoke pins enter the pivot holes in the pull yoke.

NOTE: Forward yoke pins must pass inside belt before attaching pins to pull yokes.

4.Secure yoke pins in pull yoke with 3/4” I.D. flat washers and 1/4” x 1–1/2” cotter pins (5, Figure 10). Extra washers supplied are to be used as spacers, if needed, to allow a snug but free-moving pivot connection.

5.Pull cutting units forward so that the H Frames (6, Figure 10) will compress the springs (7, Figure 10), and install belts over reel pulleys (8, Figure 10).

6.Compress belts by hand to check for free movement of the H-frames back and forth on the H-frame shafts (9, Figure 10).

Figure 11

WING MOWER LIFT

1.Position lift chain (1, Figure 12) that has been previously attached to lift lever (2, Figure 12) so that the longest chain extends away from the tractor.

2.Attach it to attachment tab (3, Figure 12) located on the middle of the front edge of the wing mower using a 3/8”-24 x 1- 3/4” bolt, two 3/8” flat washers, and two 3/8”-24 lock nuts.

3.Place bolt through the ends of the chain so that lock nuts on each side of attachment tab allow chain to move freely between the flat washers.

4.Remove the cap screw (4, Figure 12) closest to the inside of the tractor fastening the shield to the cross bar.

5.Attach chain bracket (5, Figure 12), positioning the bracket with the longest leg to the outside of the cutting unit.

6.Fasten the shorter length of chain to the chain bracket by using similar fasteners and method described above.

7.Repeat lift chain installation procedure on the other side of the mower.

8.Test wing mower lift operation by pulling lift lever all the way back (toward the rear). Wing mowers should raise 2” to 3” above ground level. Adjust, if necessary, by fastening through another link in the chain at the upper end of the lift assembly.

Figure 12

ENGINE CRANKCASE

Crankcase oil has been installed at the factory. However, it is recommended that the engine be checked for proper oil level before starting. Refer to separate engine manual included with each 8400 Mower.

HYDRAULIC OIL

1.The hydraulic oil has been installed in the oil tank (1, Figure 13) at the factory, however, it is recommended that the oil level be checked before operation.

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99500500-8400 specifications

The National Mower 99500500-8400 is an advanced lawn care solution that epitomizes efficiency and innovation for users who demand high performance from their gardening equipment. Designed for residential and light commercial use, this mower combines state-of-the-art technology with robust features to ensure a seamless mowing experience.

One of the standout features of the National Mower 99500500-8400 is its powerful engine. Equipped with a high-output, fuel-efficient engine, this mower delivers consistent power that translates into excellent cutting performance. This ensures that the mower can tackle various grass types and densities, making it useful for both manicured lawns and rugged terrains.

The 99500500-8400 boasts a durable cutting deck made from high-quality materials that resist corrosion and wear. This deck is designed with precision engineering to enhance airflow for optimal grass clipping discharge, resulting in clean, even cuts regardless of lawn conditions. Furthermore, the adjustable cutting height feature allows users to customize the mower’s settings, enabling them to achieve the desired grass length for their specific needs.

In terms of technology, the National Mower incorporates advanced safety measures to enhance user experience. The intuitive safety features include a blade brake that stops the blades within seconds when the operator releases the handle, reducing the risk of accidents. Additionally, the ergonomic handle design ensures comfort during use, allowing for prolonged operation without strain.

Another impressive characteristic of the 99500500-8400 is its ease of maintenance. The mower is engineered for quick blade sharpening and simple access to engine components, making routine upkeep straightforward for users. This is complemented by a lightweight design that enhances maneuverability, allowing users to navigate through tight spots and around obstacles with ease.

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In conclusion, the National Mower 99500500-8400 stands out as a reliable, high-performance lawn mower featuring robust power, safety, and user-friendly characteristics ideal for any homeowner or light commercial user. Its blend of innovative technology and practical design makes it a must-have for efficient lawn care.