Troubleshooting

Important: It is essential that all operator safety mechanisms be connected and in proper operating condition prior to mower use.

When a problem occurs, Do Not overlook the simple causes. For example: starting problems could be caused by an empty fuel tank.

The following table lists some of the common causes of trouble. If a problem continues, contact an Authorized Service Dealer.

Problem		Possible Cause		Corrective Action

Engine will not start, starts hard, or fails to	1.	Fuel tank is empty.	1.	Fill the fuel tank.
keep running.	2.	Fuel shut-off valve is closed.	2.	Open the fuel shut-off valve.
	2.	Fuel shut-off valve is closed.	2.	Open the fuel shut-off valve.
	3.	The throttle lever is not in the correct	3.	Move the throttle lever to the Choke
		position.		position.
	4.	Dirt, water, or stale fuel is in the fuel	4.	Contact an Authorized Service Dealer.
		system.
	5.	Faulty spark plug.	5.	Clean, adjust or replace spark plug.
	6.	Spark plug wire is not connected.	6.	Check the spark plug wire connection.

Engine loses power.	1.	Air cleaner is dirty.	1.	Clean or replace the air cleaner element.
	2.	Oil level in the crankcase is low.	2.	Add oil to the crankcase.
	3.	Vent hole in the fuel cap is plugged.	3.	Clean or replace the fuel cap.
	4.	Dirt in fuel filter.	4.	Replace the fuel filter.
	5.	Dirt, water, or stale fuel is in the fuel	5.	Contact an Authorized Service Dealer.
		system.
	6.	The underside of the lawn mower deck	6.	Clean the underside of the lawn mower
		contains clippings and debris		deck.

Engine runs rough.	1.	The wire is not connected to the spark	1.	Connect the wire to the spark plug.
		plug.
	2.	Faulty spark plug.	2.	Clean, adjust or replace spark plug.
	3.	The throttle lever is not in the Fast	3.	Move the throttle lever to the Fast
		position.		position.
	4.	The air filter element is dirty and is	4.	Clean the air filter pre-cleaner and/or
		restricting the air flow.		replace the paper air filter.

Lawn mower or engine vibrates excessively.	1.	The blade is bent or is out of balance.	1.	Balance the blade. If the blade is bent,
				replace it.
	2.	The blade mounting bolt is loose.	2.	Tighten the blade mounting bolt.
	3.	The underside of the lawn mower deck	3.	Clean the underside of the lawn mower
		contains clippings and debris.		deck.
	4.	The engine mounting bolts are loose.	4.	Tighten the engine mounting bolts.

Uneven cutting pattern.	1.	All four wheels are not at the same height.	1.	Place all four wheels at the same height.
	2.	The blade is dull.	2.	Sharpen and balance the blade.
	3.	Mowing in the same pattern repeatedly.	3.	Change the mowing pattern.
	4.	The underside of the lawn mower deck	4.	Clean the underside of the lawn mower
		contains clippings and debris.		deck.

Discharge chute plugs	1.	The throttle lever is not in the Fast	1.	Move the throttle lever to the Fast
		position.		position.
	2.	Cutting too much grass in one pass	2.	Raise the cutting height. If necessary, cut
				second time at lower cutting height.
	3.	Mowing too fast.	3.	Slow down.
	4.	The grass is wet.	4.	Allow the grass to dry before mowing.
	5.	The underside of the lawn mower deck	5.	Clean the underside of the lawn mower
		contains clippings and debris.		deck.

000 & higher, 850 specifications

The Exmark 850 is a top-of-the-line commercial mower, known for its durability, efficiency, and advanced features, making it a favorite among landscaping professionals. With a powerful engine and innovative technology, the Exmark 850 is designed to tackle tough mowing tasks while ensuring a high-quality cut.

One of the standout characteristics of the Exmark 850 is its robust engine performance. Powered by a reliable Kohler or Kawasaki engine, it delivers exceptional horsepower, enabling it to handle various terrains and grass types with ease. The engine is designed for fuel efficiency, allowing operators to work longer hours without frequent refueling, ultimately boosting productivity on the job.

The cutting deck of the Exmark 850 is engineered with precision, utilizing Exmark's proprietary UltraCut technology. This technology ensures that grass is cut evenly and efficiently, resulting in a clean, manicured appearance. The deck height is easily adjustable, allowing users to quickly change settings to accommodate different lawn conditions and preferences.

Another key feature is the innovative suspension system that enhances ride quality. The Exmark 850 is equipped with a heavy-duty front axle and high-performance suspension that absorbs bumps and uneven ground, allowing for a smoother mowing experience. This is especially beneficial for operators who spend long hours on the mower, reducing fatigue and improving comfort.

Ergonomics play a crucial role in the design of the Exmark 850. The operator station is thoughtfully crafted with optimal controls and comfortable seating, allowing for easy maneuverability and long-term use. The ergonomic handles and intuitive control layout make it easy for operators to navigate tricky landscapes, enhancing overall efficiency.

In terms of durability, the Exmark 850 is built to withstand the rigors of commercial use. The high-quality materials and construction ensure that this mower can handle challenging conditions, extending its lifespan and reducing maintenance needs. Additionally, Exmark offers an extensive warranty program, providing peace of mind for operators.

Safety features are also prioritized in the Exmark 850, with guards and shields designed to protect the operator while mowers are in use. These features also include emergency shut-off systems and blade brake systems, ensuring compliance with safety standards.

Overall, the Exmark 850 stands out as a high-performing, reliable, and efficient mower suitable for a variety of commercial landscaping tasks. With its powerful engine, advanced cutting technology, ergonomic design, and emphasis on durability and safety, it continues to be a top choice for professionals seeking high-quality lawn care equipment.