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ADDING HYDRAULIC OIL
WARNING: Never overfill the hydraulic units. Damage can result if the oil level is not within the
operating range.
Note: When adding hydraulic oil, do so in small quantities and recheck the oil level before adding more. It is
important that you do not over fill the reservoir. (See Figure 16)
1. Place the Z-series on a level surface and engage the parking brake.
2. Stop the engine and remove the key from the ignition switch.
3. Clean the area around the hydraulic oil dipstick.
4. Remove the hydraulic fill plug and insert a clean funnel into the hydraulic fill point.
5. Pour proper amount of hydraulic oil into reservoir.
6. Insert the dipstick and check the hydraulic oil level.
DRAINING HYDRAULIC OIL
Used hydraulic oil must be disposed of properly. Do not pour it down a drain or sewer, or dump it on open land,
this creates an environmental hazard. Please be aware of the environment when disposing of used oil.
1. Place the Z-series on a level surface and engage the parking brake.
2. Stop the engine and remove the key from the ignition switch.
3. Remove the mower deck. See REMOVING THE MOWER DECK in the MOWER DECK section.
4. Move seat forward to expose hydraulic oil fill point.
5. Clean the area around the hydraulic fill plug/dipstick.
6. Remove hydraulic fill plug/dipstick.
7. Place a suitable (at least 2 gallon) container under the hydraulic oil filter.
8. Remove the hydraulic filter to allow hydraulic oil to drain. (See Figure 17)
9. Place a small pan under the skid plate and drain oil from both left and right axles. (See Figure 17)
10. Replace both axle drain plugs and hydraulic oil tank plug.
11. Install new hydraulic oil filter.
12. Add proper amount of hydraulic oil to reservoir.
13. Run and check oil level.
Figure 17
Hydraulic
Oil Filter
Left Transmission Drain Plug