Ariens 992808-ProZoom 3166S Specifications download pdf (Page 20)

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Engine Oil Change

Change the engine oil and filter after the first 8 hours of

operation. Change the oil each subsequent 100 hours of

operation after the initial change.

1. Run the engine to warm the oil.

2. Park the mower on level ground.

3. Stop the engine, put the steering control levers in the

park position and remove the key.

4. Remove the oil drain screw, see figure 15, and drain

the oil into a suitable container while the engine is still

warm.

5. Install the oil drain screw.

6. Remove the dipstick and refill with fresh oil.

7. Check the oil level.

HYDRAULIC SYSTEM MAINTENANCE

IMPORTANT: Avoid damage to hydraulic components as a

result of contamination. Be sure to wipe around the filler

neck and cap before removal of the hydraulic oil reservoir

cap. Do not open the oil reservoir cap when hot unless it is

absolutely necessary.

Check the reservoir daily for the proper fluid level.

The pump and motor units require fluid changes yearly or

every 250 hours whichever occurs first. The system filter

should be changed initially after the first 50 hours of

operation. The fluid and filter must be changed and the

system cleaned if the fluid would become contaminated with

dirt, water, etc.

NOTE: The integrated pump/motor units are equipped with

bypass valves. (See Moving the Unit with the Engine Off on

page 17.)

Changing Hydraulic Fluid

1. Park the machine on a level surface, stop the engine,

put the steering control levers in the park position and

remove the key.

2. Clean the area around the reservoir filler cap and

remove the filler cap from the reservoir.

3. To drain the hydraulic fluid, place a suitable container

under the hydraulic filter and remove it.

4. Place a thin coat of hydraulic oil on the gasket on the

oil filter. Before reinstalling, make sure mount area is

clean of debris.

5. Install the hydraulic oil filter onto the filter adapter.

6. Refill the hydraulic reservoir to the recommended

level. Reinstall the oil reservoir filler cap.

7. Clean up any fluid which may have spilled.

WARNING: Engine oil is a toxic substance.

Dispose of used oil properly. Contact your local

authorities for approved disposal methods or

possible recycling.

WARNING: Hot engine oil can cause severe

burns. Allow engine oil temperature to drop from

hot to warm before attempting to drain and

handle the oil.

Figure 14

Clean

Engine Oil

Figure 15

Oil Drain

Screw

Engine Oil

Filter

OE3290

CAUTION: Be sure the engine has been

stopped, the steering control levers are in the

park position, and the key has been removed

before changing or checking the hydraulic oil in

the mower.

Allow the hydraulic fluid to cool. The oil may be

hot and could cause serious burns.

CAUTION: Be sure the engine has been

stopped, the steering control levers are in the

park position, and the key has been removed

before changing or checking the hydraulic oil in

the mower.

CAUTION: Allow the hydraulic fluid to cool.

The oil may be hot and could cause serious

burns.

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Ariens 992808-ProZoom 3166S Specifications Page 20

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